TGIF(n)TGIF(n)NAMEtgif - Xlib based interactive 2-D drawing facility under X11. Supports
hierarchical construction of drawings and easy navigation between sets
of drawings. It's also a hyper-graphics (or hyper-structured-graphics)
browser on the World-Wide-Web.
SYNOPSIStgif [-display displayname] [-fg <color>] [-bg <color>] [-bd <color>]
[-rv] [-nv] [-bw] [-reqcolor] [-cwo] [-hyper] [-geometry <geom>]
[=<geom>] [<file>[.obj]]
or
tgif-print [-eps] [-p] [-ps] [-f] [-text] [-epsi] [-tiffepsi] [-gif]
[-xpm] [-xbm] [-html] [-display displayname] [-stdout] [-raw[+h]]
[-dosepsfilter [-previewonly]] [-status] [-gray] [-color | -reqcolor]
[-adobe | -adobe=<number>/<number>] [-page <number>] [-print_cmd "<com‐
mand>"] [-one_file_per_page] [-pepsc] [-bop_hook "<string>"] [-eop_hook
"<string>"] [-tmp_file_mode "<octal number>"] [-o<dir>] [file1 file2
...]
DESCRIPTION
Tgif is an interactive drawing tool that allows the user to draw and
manipulate objects in the X Window System. Tgif runs interactively in
the first form. In the second form shown in the SYNOPSIS section, tgif
just prints file1.obj, file2.obj, etc. (generated by tgif) into Post‐
Script(TM) page description files (without opening windows or fonts)
and pipes them to lpr(1) if none of the -eps, -p, -epsi, -tiffepsi,
-gif, -xpm, -xbm, -html, -ps, -f, or -text options are specified. This
form of printing is tgif's way of exporting a tgif file to another for‐
mat. In this case, any other unrecognized command line options are
sent to lpr(1). In this mode, tgif is compatible with the obsoleted
prtgif. A symbol file (see descriptions below) can also be printed by
specifying the .sym extension explicitly.
The command line argument file specifies a file or an Uniform Resource
Locator (URL) of objects to be initially edited by tgif. Only HTTP or
FTP URL's are supported. (For a more detailed description of URL and
the World-Wide-Web, the reader is referred to [1].)
Tgif is purely based on Xlib. It is tested under X11R6, and it
requires a 3 button mouse.
OPTIONS
In the first form shown in the SYNOPSIS section, the command line argu‐
ments can be:
-fg Foreground color specified in <color>.
-bg Background color specified in <color>.
-bd Border color specified in <color>.
-rv Start tgif in reversed-video mode.
-nv Start tgif in normal-video mode.
-nv Start tgif in black and white mode.
-reqcolor
Same effect as setting the Tgif.PrintUsingRequestedColor X
default to true (see the X DEFAULTS section below).
-cwo Canvas Window Only. Only the canvas window (see TGIF SUBWINDOWS
section below) will be displayed. This has the same effect as
setting the Tgif.CanvasWindowOnly X default to true.
-hyper Start tgif in the hyperspace mode (see HYPERSPACE section
below).
In the second form shown in the SYNOPSIS section, the command line
arguments can be:
-eps (or -p)
Generates an Encapsulated PostScript(TM) file in file.eps; this
file can be included in a LaTeX file through the \psfig, \epsf,
or \psfile construct (see the LATEX FIGURE FORMATS section
below).
-ps (or -f)
Generates a PostScript file in file.ps; this file can be printed
to a PostScript printer with lpr(1).
-text Generates a text file in file.txt; the text file contains all
visible text and can be fed to a spell checker.
-epsi Generates an Encapsulated PostScript (EPS) file with a preview
bitmap in file.eps. Tgif aborts if a valid display is not
accessible.
-tiffepsi
Generates an EPS file with a DOS EPS Binary File Header and a
trailing TIFF image in file.eps. See the GENERATING MICROSOFT
WINDOWS EPSI FILES section for more details. Tgif aborts if a
valid display is not accessible.
-gif Generates a GIF file in file.gif. Please see the notes for
Tgif.GifToXpm in the X DEFAULTS section below. Tgif aborts if a
valid display is not accessible.
-xpm Generates an X11 pixmap (XPM) file in file.xpm. Tgif aborts if
a valid display is not accessible.
-xbm Generates an X11 bitmap (XBM) file in file.xbm. Tgif aborts if
a valid display is not accessible.
-html Generates a GIF file in file.gif and an HTML file in file.html.
Tgif aborts if a valid display is not accessible.
-stdout
Sends the output to the standard output instead of generating
the output in a file.
-raw Causes the content of the files to be dumped to stdout.
-raw+h If -raw+h is used and if the file is an HTTP URL, the HTTP
header is also dumped to stdout.
-dosepsfilter
Makes tgif act as a filter for gettting rid of the DOS EPS
Binary File Header and the trailing TIFF image in a DOS/Windows
EPS file.
-previewonly
If -dosepsfilter is specified, -previewonly makes tgif act as a
filter for extracting the preview bitmap from the trailing TIFF
image in a DOS/Windows EPS file.
-status
If this option is used in conjunction with either -raw or -raw+h
causes a status line to be displayed in stderr.
-gray Using this option has the same effect as setting the Tgif.UseG‐
rayScale X default to true (see the X DEFAULTS section below).
-color (or -reqcolor)
To print in color, one can use either the -color or the -req‐
color option. The only difference between the two is that using
-reqcolor has the same effect as setting the Tgif.PrintUsingRe‐
questedColor X default to true (see the X DEFAULTS section
below).
-adobe (or -adobe=<number>/<number>)
Using this option has the same effect as specifying the
Tgif.UsePsAdobeString X default.
-page Causes a specified page (specified by <page>) to be printed.
-print_cmd
Using this option has the same effect as specifying the
Tgif.PrintCommand X default.
-one_file_per_page
Causes each page to be printed into a separate file.
-pepsc Preserve EPS Comment. Using option has the same effect as set‐
ting the Tgif.StripEPSComment X default to false.
-bop_hook and -eop_hook
Using these options have the same effect as specifying the
Tgif.PSBopHook and Tgif.PSEpsHook X defaults.
-tmp_file_mode
Using this option have the same effect as specifying the
Tgif.TmpFileMode X defaults.
-o If this option is not specified, the output file (eps, ps, etc.)
goes into the same directory as the input file. If -odir is
specified, the output file goes into the directory specified by
<dir>.
BASIC FUNCTIONALITIES
Primitive objects supported by tgif are rectangles, ovals, rounded-cor‐
ner rectangles, arcs, polylines, polygons, open-splines, closed-
splines, text, X11 bitmaps, some specific forms of X11 pixmaps, and
Encapsulated PostScript. Objects can be grouped together to form a
grouped object. A primitive or a grouped object can be made into an
icon object or a symbol object through user commands.
Tgif objects are stored in two types of files. A file with a .obj
extension (referred to as an object file) is a file of objects, and a
file with a .sym extension (referred to as a symbol file) specifies a
``building-block'' object. A teleport mechanism is provided to travel
(or hyperjump) among the .obj files. A building-block object consists
of the representation part and the definition part (which can be empty)
of the object. Tgif supports the ``bottom-up'' construction of hierar‐
chical drawings by providing the capability to ``instantiate'' a build‐
ing-block object in a drawing. Tgif also supports the ``top-down''
specification of drawings by allowing the user to make any object a
representation of an un-specified subsystem. Both types of files are
stored in the form of Prolog facts. Prolog code can be written to
interpret the drawings! (It is left to the user to produce the code.
See the PROLOG/C TESTDRIVE section for more details.) Prolog engines
are referred to as drivers in the sections to follow. (Other types of
drivers are also allowed, e.g., written in C.)
Text based attributes can be attached to any non-text object.
Attributes specified in the representation part of a building-block
object are non-detachable when such an object is instantiated. See the
ATTRIBUTES section for details.
Tgif can generate output in four different formats. By default, the
output is in the PostScript format (color PostScript is supported), and
it is generated into a file named /tmp/Tgifa* (produced by mktemp()
calls) where * is a number; this file is piped to lpr(1). This takes
place when the laser-printer icon is displayed in the Choice Window
(see the TGIF SUBWINDOWS section for the naming of tgif windows). This
output can be redirected to a file with a .ps extension. This takes
place when the PS icon is displayed in the Choice Window. When the
LaTeX (or EPSI) icon is displayed in the Choice Window, the output is
generated into a file with a .eps extension. This file is in the
Encapsulated PostScript (or Encapsulated PostScript Interchange) for‐
mat; it can be included in a LaTeX document with the \psfig or the
\epsf construct; this will be discussed later. The only difference
between the EPS and EPSI formats is that an EPSI file contains a pre‐
view bitmap. However, it takes time to generate the preview bitmap.
If the EPS/EPSI file is to be incorporated into some tool that does not
know how to use the preview bitmap, time can be saved by not using the
EPSI format. When the T icon is displayed in the Choice Window, the
output generated into a file with a .txt extension. This is a text
file containing all visible text; it can be fed to a spell checker.
When the x11bm (X11 bitmap) icon is displayed in the Choice Window and
color output is not selected, tgif generates the output with the .xbm
extension; the output is in the X11 bitmap format. However, if the
x11bm icon is displayed in the Choice Window and color output is
selected (through the ^#k keyboard command -- ^ denotes the <Control>
and # denotes the <Meta> key), then tgif generates the output with the
.xpm extension, and the output is in the X11 pixmap format (the version
of this XPM format depends on the settings of the Tgif.XPmOutputVersion
X default).
X11 bitmap files, certain forms of X11 pixmap files (such as the one
generated by tgif; see the section on X11 PIXMAP for details), GIF
files, and Encapsulated PostScript (EPS) files can be imported into
tgif and be represented as tgif primitive objects. Files in other
raster formats (e.g, JPEG, TIFF, etc.) can also be imported into tgif
if external tools can be used to convert them into X11 pixmap files.
Please see the IMPORT RASTER GRAPHICS section for details.
Tgif drawings are supposed to be printed on letter size paper (8.5in by
11in). Both landscape and portrait page styles are supported by tgif.
Reduction (or magnification) can be controlled by the #% keyboard com‐
mand to set the reduction/magnification. If the compiler flag
-DA4PAPER is defined (in Imakefile or Makefile.noimake), then the out‐
put is supposed to be printed on A4 papers (which has approximate
dimensions of 8.25in by 11.7in).
GRAPHICAL OBJECTS
An object in an object (.obj) file can be a primitive object, a grouped
object, or an icon object. A symbol (.sym) file can have any number of
objects allowed in an object file and exactly one symbol object.
(Recall that a symbol file specifies a building-block object.) The
symbol object in a symbol file is the representation part of the build‐
ing-block object, and the rest of the symbol file is the definition
part of the building-block object. The symbol object is highlighted
with a dashed outline to distinguish it from the rest of the objects.
When a building-block object is instantiated, the symbol part of the
file is copied into the graphics editor, and it becomes the icon for
the building-block object.
All objects in tgif can be moved, duplicated, deleted, rotated,
flipped, rotated, and sheared. However, in the non-stretchable text
mode, text objects can not be stretched. For an text object, if it has
not been stretched, rotated, or sheared, flipping it horizontally will
cause the text justification to change and flipping it vertically has
not effect.
Tgif supports 32 fill patterns, 32 pen patterns, 7 default line widths,
4 line styles (plain, head arrow, tail arrow, double arrows) for poly‐
lines and open-splines, 9 dash patterns, 3 types of text justifica‐
tions, 4 text styles (roman, italic, bold, bold-italic), 11 default
text sizes (8, 10, 12, 14, 18, and 24 for the 75dpi fonts and 11, 14,
17, 20, 25, and 34 for the 100dpi fonts), 5 default fonts (Times,
Courier, Helvetica, New-Century-Schoolbook, Symbol), and 11 default
colors (magenta, red, green, blue, yellow, pink, cyan, cadet-blue,
white, black, dark-slate-gray). Additional line widths can be added
through the use of Tgif.MaxLineWidths, Tgif.LineWidth#,
Tgif.ArrowWidth#, and Tgif.ArrowHeight# X defaults. Additional text
sizes can be added through the use of Tgif.FontSizes X default. Addi‐
tional fonts can be added through the use of Tgif.AdditionalFonts X
default. If the defaults fonts are not available, their replacement
fonts can be specified by Tgif.HasAlternateDefaultFonts and related X
defaults. Additional colors can be added through the use of Tgif.Max‐
Colors, and Tgif.Color# X defaults. One can also select AddColor()
from the Edit Menu to add a color.
Most commands in tgif can either be activated by a popup menu or by
typing an appropriate non-alphanumeric key. All operations that change
any object can be undone and the redone. Commands such as zoom,
scroll, change fonts while no text objects are selected, etc. are not
undoable. The undo/redo history buffer size can be set using the
Tgif.HistoryDepth X default.
TGIF SUBWINDOWS
The tgif windows are described in this section.
Top Window
Displays the current domain and the name of the file tgif is
looking at. Mouse clicks and key presses have no effect.
Menubar Window
This window is right under the Top Window. Pull-down menus can
be activated from it with any mouse buttons. Key presses have
no effect. If HideMenubar() is selected from the Layout Menu,
this window becomes invisible. If ShowMenubar() is selected
from the Layout Menu (which can be activated from the Canvas
Window below), this window becomes visible.
The View, Text, and Graphics pull-down menus are cascading menus
and can not be pinned (see the Popup Menus subsection below for
a description).
Message Window
This is right under the Menubar Window and to the left. It dis‐
plays tgif messages. Clicking the left mouse button in this
window scrolls the messages towards the bottom, clicking the
right mouse button scrolls towards the top, and clicking or
dragging the middle mouse button scrolls to the location in the
message history depending on where the mouse is clicked. If the
<Shift> (or <Control>) key is held down when clicking the
left/right mouse button, it scrolls right/left.
Panel (Choice) Window
This is the window to the right of the Message Window, and it
contains a collection of icons (not to be confused with the tgif
icon objects) reflecting the current state of tgif. In top/bot‐
tom, left/right order, it displays the current drawing mode, the
page style (portrait or landscape), edit (see below),
print/export mode, zoom factor, move and stretch mode (con‐
strained or unconstrained), radius for rounded-corner rectan‐
gles, text rotation, page number or row/column, page layout mode
(stacked or tiled), horizontal alignment (L C R S -), vertical
alignment (T M B S -), font, text size, vertical spacing between
lines of text within the same text object, text justification,
shape (see below), stretchable or non-stretchable text mode,
dash pattern, line style, polyline, spline, or interpolated
spline, line width, fill pattern, pen pattern, color, and spe‐
cial (see below). Key presses have no effect in this window.
In addition to displaying the current state of tgif, the icons
in the Choice Window can also be used to change the current
state. Each icon is associated with a particular state variable
of tgif. Clicking the left mouse button on top of an icon
cycles the state variable associated with the icon forward;
clicking the right mouse button cycles the state variable back‐
wards. Dragging the middle mouse button on top of an icon usu‐
ally generates a popup menu which corresponds to an entry in the
Main Menu for the Canvas Window below. (The ``edit'',
``shape'', and ``special'' icons mentioned above are dummy
icons that allow the ``edit'', ``shape'', and ``special'' menus
to be accessed in the Choice Window. They do not respond to
left and right mouse clicks.) The response to the dragging of
the middle mouse button is different for the zoom, radius, and
vertical spacing icons. Dragging the mouse left or up increases
the zoom or decreases the radius or vertical spacing; dragging
the mouse right or down has the opposite effect.
If there are objects selected in the canvas window, then the
action of the mouse will cause the selected objects to change to
the newly selected mode; note that in this case, the current
choice won't change if the middle mouse button is used (unless
the Tgif.StickyMenuSelection X default is set to true).
The settings of the horizontal and vertical alignments determine
how objects (or vertices) align with each other when the ^l key‐
board command is issued, how each individual object (or vertex)
aligns with the grids when the ^t keyboard command is issued,
how objects or vertices distribute spatially with respect to
each other when the #l keyboard command is issued, and how each
icon replaces the old icon when the ^#u keyboard command is
issued. The horizontal alignments are left (L), center (C),
right (R), space (S), and ignore (-). The vertical alignments
are top (T), middle (M), bottom (B), space (S), and ignore (-).
In aligning operations, the space (S) and the ignore (-) set‐
tings have the same effect. The space settings are used to dis‐
tribute objects such that the gaps between any two neighboring
objects are equal. In vertex mode, any non-ignore setting will
cause the selected vertices to be spaced out evenly. The best
way to understand them is to try them out.
The text vertical spacing determines the vertical distance to
advance when a carriage return is pressed during text editing.
If the user tries to set the value too negative, such that the
next line is exactly at the same position as the current line,
such a setting will not be allowed (this distance depends on the
current font and font size).
Canvas Window
This is the drawing area. The effects of the actions of the
mouse is determined by the current drawing mode. Normally,
dragging the right mouse button will generate the Mode Menu.
The drawing modes are (in order, as they appear in the Mode
Menu) select, text, rectangle, oval, polyline (open-spline),
polygon (closed-spline), arc, rounded-corner rectangle, freehand
polyline (open-spline), select vertices, and rotate/shear. When
drawing a rectangle, an oval, or a rounded-corner rectangle, if
the <Shift> key is held down, a square, a circle, or a rounded-
corner square is drawn. Dragging the middle mouse button will
generate the Main Menu.
In the select mode, left mouse button selects, moves, stretches,
and reshapes objects (double-click will ``de-select'' all
selected objects in vertex mode). When an object is selected,
it is highlighted by little squares (referred as handles here)
at the corners/vertices (using the Tgif.HandleSize X default,
the sizes of the handles can be customized). Dragging one of
the handles stretches/reshapes the selected object. If one
wants to move a selected object, one should not drag the han‐
dles. Instead, one should drag other parts of the object. For
example, if the object is a hollow rectangle (the fill is NONE
and the pen is not NONE), in order to select the rectangle, one
should to click on the outline of the rectangle with the left
mouse button. If one would like to move the rectangle, one
should drag the outline of the rectangle with the left mouse
button. If the object is a filled rectangle (fill is not NONE),
the one can click inside the rectangle to select it and drag
anywhere inside the rectangle to move it.
Holding down the <Shift> key and clicking the left mouse on an
object which is not currently selected will add the object to
the list of already selected objects. The same action applied
to an object which is already selected will cause it to be de-
selected. When stretching objects (not reshaping poly-type
objects), holding down the <Shift> key after stretching is ini‐
tiated activates proportional stretching (basically, a scale
operation is being performed). In non-stretchable text mode,
text objects can not be stretched or scaled. Clicking the mid‐
dle mouse button while the <Shift> key is held down will acti‐
vate the teleport (or travel), the launch, or the execute inter‐
nal command mechanism. See the sections on TELEPORT/HYPERJUMP,
LAUNCH APPLICATIONS, and INTERNAL COMMANDS for details. Tele‐
porting has precedence over launching, which has precedence over
executing an internal command. The arrow keys can also be used
to move selected objects. However, if no objects are selected,
using the arrow keys will scroll the drawing area by a small
amount, and using the arrow keys when <Control> key is held down
will scroll a screen full.
In the select vertices mode, left mouse button selects and moves
vertices. Only the top-level polyline/open-spline and poly‐
gon/closed-spline objects which are selected when the vertex
mode is activated are eligible for vertex operations. In this
mode, all eligible objects have their vertices highlighted with
squares. When a vertex is selected (using similar mechanism as
selecting objects described above), it is doubly highlighted
with a '+' sign. Operations available to these doubly high‐
lighted vertices are move, delete, align (with each other), dis‐
tribute (space them equally), and align to grid. The arrow keys
can also be used to move selected vertices.
Objects can be locked (through the #< keyboard command). Locked
object are shown with gray handles, and they can not be moved,
stretched, flipped, rotated, or sheared. When objects are
grouped, the resulting grouped object will also be locked if any
one of it's constituents is locked. Locked objects can have
their properties, such as color, font, pen, etc., changed; fur‐
thermore, they can be deleted.
If the current move/stretch mode is of the constrained type
(activated and deactivated by the #@ keyboard command), top-
level polylines will have the following behavior. In a move
operation, if both endpoints of a polyline lie inside the
objects being moved, then the whole polyline is moved; other‐
wise, if only one endpoint falls inside the objects being moved,
then that endpoint is moved. The vertex that is the neighbor of
the moved endpoint may also be moved either horizontally or ver‐
tically. If the last line segment is horizontal or vertical,
then the neighbor vertex may be moved so that the direction of
the last line segment is maintained. In a stretch (not reshape)
operation, if an endpoint of a polyline lies inside the objects
being moved, that endpoint will be moved. The vertex that is
the neighbor of the moved endpoint will also be moved in the
same manner as described above.
When the drawing mode is set to text (a vertical-bar cursor is
shown), clicking the left mouse button causes selected text to
go into edit mode. Dragging the left mouse button or clicking
the left mouse button while the <Shift> key is held down high‐
lights substrings of the text. Double-clicking causes a word to
be selected. In edit mode, key presses are treated as text
strings being inputed, and arrow keys are used to move the cur‐
rent input position. If a key press is preceded by an <ESC>
key, then the character's bit 7 is turned on. This allows non-
ASCII (international) characters to be entered. One can use
xfd(1) to see what the corresponding international character is
for an ASCII character. For the Symbol font, symbols such as
the integral, partial derivative, and copyright symbols can all
be found in this range. There are some characters that are sup‐
ported by X11 but not by PostScript; these characters are not
accepted by tgif. If the text being edited is an attribute of a
object, <Meta><Tab> will move the cursor to the next visible
attribute and <Shift><Tab> will move the cursor to the previous
visible attribute.
If the drawing mode is set to draw polygons (not closed-splines)
and if the <Shift> key is held down, the rubber-banded polygon
will be self-closing.
The freehand drawing mode can be used to draw polylines and open
splines. All intermediate points are specified by moving the
mouse (as opposed to clicking the mouse buttons as in the poly‐
line mode). The second end point is specified by releasing the
mouse button.
In all drawing modes (other than the text mode), pressing the
<ESC> key cancels the drawing (creation) of the current object.
Middle mouse button always generates the main tgif popup menu.
Holding down the <Shift> key and clicking the right mouse button
will change the drawing mode to select. Key presses with the
<Control> or <Meta> key held down (referred to as non-alphanu‐
meric key presses since they can also generate control charac‐
ters) are treated as commands, and their bindings are summarized
in the next section. Users can also define single key commands
to emulate the functions of the non-alphanumeric key commands.
The SHORTCUTS section will describe the details.
Scrollbars
Clicking the left mouse button in the vertical/horizontal
scrollbar causes the canvas window to scroll down/right by a
small distance; clicking the right mouse button has the reverse
effect. (The scrollbars in the popup windows for selecting file
names and domain names behave similarly.) Clicking with the
<Shift> key held down will scroll a window full. Clicking or
dragging the middle button will cause the page to scroll to the
location which corresponds to the gray area in the scrollbars.
(Tgif insists that the left top corner of the Canvas Window is
at a distance that is a nonnegative multiple of some internal
units from the left top corner of the actual page.)
Rulers
They track the mouse location. Mouse clicks and key presses
have no effect. When the page reduction/magnification is set at
100%, the markings in the rulers correspond to centimeters when
the metric grid system is used, and they correspond to inches
when the English grid system is used. When the page reduc‐
tion/magnification is not set at 100%, the markings do not cor‐
respond to the above mentioned units any more (this is consid‐
ered as a known bug).
Interrupt/Hyperspace Window
This window is right below the Message Window and to the left of
the horizontal ruler. When the Tgif.IntrCheckInterval X default
has a positive value, an interrupt icon is visible when the Can‐
vas Window is being redrawn. If the user clicks on this window
when the interrupt icon is visible, tgif aborts the repainting
of the objects. If this is done when a file is being opened
(either through Open() or Push()), the drawing of objects is
stopped, but the reading of the file continues (reading of the
file is not aborted).
If tgif is currently in the hyperspace mode (please see the
HYPERSPACE section below for more details), a space ship icon
will be displayed when the interrupt icon is not being dis‐
played. Clicking any button in this window will switch tgif in
and out of the hyperspace mode.
Page Control Window
The Page Control Window is to the left of the horizontal scroll‐
bar. This window is empty is the current page mode is set to
the tijled page mode. If the current page mode is set to the
stacked page mode, each page has a tab in tabs subwindow of this
window. Clicking the left mouse button on a tab goes to the
corresponding page. Clicking the middle mouse button brings up
the Page Menu. When there are too many pages in a drawing so
that one can not see the tabs for all the pages, one can use the
icons to the left side of the Page Control Window to scroll the
tabs subwindow. Clicking on the first icon scrolls the tabs
subwindow such that the first tab is visible. Clicking on the
4th icon scrolls the tabs subwindow such that the last tab is
visible. Clicking on the 2nd icon scrolls the tabs subwindow
towards the first tab by one tab and clicking on the 3rd icon
scrolls the tabs subwindow towards the last tab by one tab.
Status Window
This window is below the horizontal scrollbar. It shows what
action will be taken if a mouse button is depressed. When a
menu is pulled down or poped up, this window shows what action
will be taken if a menu item is selected. It also displays mis‐
cellaneous status information. Mouse clicks and key presses
have no effect. If HideStatus() is selected from the Layout
Menu, this window becomes invisible. If ShowStatus() is
selected from the Layout Menu, this window becomes visible.
By default, when this window is displaying mouse button status,
right-handed mouse is assumed. Setting the Tgif.ReverseMouseS‐
tatusButtons X default to true will reverse the status (as if a
left-handed mouse is used).
Popup Menus
When a menu is poped up by a mouse drag, the menu can be pinned
if it is dragged far enough horizontally (the distance is deter‐
mined by the setting of the Tgif.MainMenuPinDistance X default).
Clicking the right mouse button in a pinned menu will cause it
to disappear. Dragging the left mouse button in a pinned menu
will reposition the menu (except when the Tgif.TitledPinnedMenu
X default is set to true in which case the left mouse button
performs the same function as the middle mouse button). Click‐
ing the middle mouse button in it will activate the item right
below the mouse.
NON-ALPHANUMERIC KEY BINDINGS
Most operations that can be performed in tgif can be activated through
non-alphanumeric keys (some operations can only be activated through
popup menus or shortcut keys). This section summarizes the operations
that can be activated by a key stroke with the <Control> and/or the
<Meta> key held down. ``^'' denotes the <Control> key and ``#''
denotes the <Meta> key in the following description. (The ``keys.obj''
file, distributed with tgif, also summarizes the same information, but
it is organized differently. This file can be viewed with tgif, and if
installed properly, it can be found in the same directory as the ``tgi‐
ficon.obj'' file, mentioned in the FILES section of this document.)
^a select all
^b send selected objects to the back
^c change domain
^d duplicate selected objects
^e save/restore drawing mode
^f send selected objects to the front
^g group selected objects (the grouped object will be brought to the
front)
^i instantiate a building-block object
^k pop back to (or return to) a higher level and close the symbol
file (reverse of ^v)
^l align selected objects according to the current alignment settings
^n open a new un-named object file
^o open an object file to edit
^p print the current page (or export in XBM, XPM, GIF, HTML, EPS, or
PS formats)
^q quit tgif
^r redraw the page
^s save the current object/symbol file
^t align selected objects to the grid according to the current align‐
ment
^u ungroup selected objects
^v push into (or edit) the definition part of a building-block (icon)
object
^w change the drawing mode to text
^x delete all selected objects
^y copy selected objects into the cut buffer
^z escape to driver
^, scroll left
^. scroll right
^- print the current page with a specified command
#a attach selected text objects to a selected non-text object as
attributes
#b escape to driver
#c rotate selected objects counter-clockwise
#d decrement the grid size
#e send a token on a selected polyline
#f flash a selected polyline
#g show/un-show grid points
#h flip the selected objects horizontally
#i increment the grid size
#j hide the attribute names of the selected objects
#k change the drawing mode to select
#l distribute selected objects according to the current alignment
#m move/justify an attribute of a selected object
#n show all the attribute names of the selected objects
#o zoom out
#p import a .obj or a .sym file into the current file
#q change the drawing mode to polyline/open-spline
#r change the drawing mode to rectangle
#s escape to driver
#t detach all the attributes of the selected objects
#u undo
#v flip the selected objects vertically
#w rotate the selected objects clockwise
#x escape to driver
#y escape to driver
#z zoom in
#9 create a user-specified arc (12 o'clock position is 0 degree)
#0 update the selected objects according to current settings
#, scroll up
#. scroll down
#- show all the attributes of the selected objects
#[ align the left sides of objects
#= align the horizontal centers of objects
#] align the right sides of objects
#{ align the top sides of objects
#+ align the vertical centers of objects
#} align the bottom sides of objects
#" make the selected polygon regular (fit the original bounding box)
#% set the percent print reduction (if < 100%) or magnification (if >
100%)
#: go to default zoom
#` zoom out all the way so that the whole page is visible
#~ saved selected objects in a new file
#; cut and/or magnify a selected bitmap/pixmap object
#_ abut selected objects horizontally
#| abut selected objects vertically
## break up text objects into single character text objects
#^ scroll to the origin set by SaveOrigin()
#@ toggle between constrained and unconstrained move (stretch) modes
#$ change the drawing mode to select vertices
#& align selected objects to the paper according to the current
alignment
#* redo
#( import an Encapsulated PostScript file
#) scale selected objects by specifying X and Y scaling factors
#< lock the selected objects (can't be moved, stretched, flipped, or
rotated)
#> unlock the selected objects
^#a add points to the selected poly or spline
^#b change the text style to bold
^#c change to center justified text
^#d delete points from the selected poly or spline
^#e change the drawing mode to rounded-corner rectangles
^#f reverse-video the selected bitmap objects
^#g toggle snapping to the grid points
^#h hide all attributes of the selected objects
^#i make the selected object iconic
^#j make the selected icon object a grouped object
^#k select color or black-and-white output
^#l change to left justified text
^#m make the selected object symbolic
^#n make the selected symbol object a grouped object
^#o change the text style to roman
^#p change the text style to bold-italic
^#q change the drawing mode to polygon/closed-spline
^#r change to right justified text
^#s save the file under a new name
^#t change the text style to italic
^#u update iconic representations of selected objects
^#v change the drawing mode to oval
^#w toggle between poly and spline
^#x cycle among the various output file formats
^#y paste from the cut buffer
^#z change the drawing mode to arcs
^#. import an X11 bitmap file
^#, import an X11 pixmap file
^#- toggle between English and Metric grid systems
^#= repeat the last Find command
SHORTCUTS
The user can define single character shortcut keys to emulate the func‐
tion of the non-alphanumeric key presses to activate commands. This is
done through the use of the Tgif.ShortCuts X default. (Please note
that these shortcut keys are only active when the drawing mode is not
set to the text mode.) The Tgif.ShortCuts consists of a list of items,
each of which specifies the bindings between a key (may be case sensi‐
tive) and a command. The items are separated by blanks, and each item
is interpreted as follows. It consists of two parts, KEY and COMMAND,
which are concatenated together with a ':' character. The format of
the KEY part is one of :<Key>x, !<Key>x, or <Key>x (here the character
'x' is used as an example; furthermore, the substring <Key> must be
spelled exactly the way it appears here). The first 2 formats are
equivalent, they specify the lower case x; the 3rd format specifies
both the characters 'x' and 'X'. The COMMAND part is a string that
matches strings in tgif's popup menus (exceptions are noted below).
This is illustrated by the following example. In the Edit menu, two of
the entries are,
"Delete ^x"
"SelectAll ^a"
which means that <Control>x activates and Delete() command, and <Con‐
trol>a activates the SelectAll() command. Therefore, both Delete() and
SelectAll() are valid names for the COMMAND part of a shortcut specifi‐
cation. To complete the example, the following line can be used to
bind the lower case 'x' to Delete() and 'a' or 'A' to SelectAll():
Tgif.ShortCuts: !<Key>x:Delete() \n\
<Key>a:SelectAll()
For more examples, please see the sample X defaults file, tgif.Xde‐
faults, included in the tgif distribution.
Here is a list of exceptions where the COMMAND does not match a command
name in a menu entry. The left entry is a proper COMMAND name, and the
right is a list of strings that's shown in popup menus which the COM‐
MAND would correspond to.
CyclePrintFormat() Printer, LaTeXFig, RawPSFile, XBitmap,
TextFile, EPSI, GIF/ISMAP
ToggleBW/ColorPS() BlkWhtPS, ColorPS
ToggleGridSystem() EnglishGrid, MetricGrid
ToggleMapShown() ShowBit/Pixmap, HideBit/Pixmap
ToggleUseGrayScale() UseGrayScale, NoGrayScale
ToggleMoveMode() ConstMove, UnConstMove
ToggleShowMeasurement() ShowMeasurement, HideMeasurement
ToggleLineType() (advances between different curved shapes)
ScrollPageUp() (scroll up a window full)
ScrollPageDown() (scroll down a window full)
ScrollPageLeft() (scroll left a window full)
ScrollPageRight() (scroll right a window full)
FreeHandMode() (change the drawing mode to freehand poly/open-
spline)
CenterAnEndPoint() (move an endpoint of a polyline object to the
center of another object)
ToggleNamedAttrShown(<x>=) (toggle name shown for the attribute <x>)
ToggleSmoothHinge() (convert smooth to hinge and hinge to smooth
points)
ToggleShowMenubar() ShowMenubar, HideMenubar
ToggleShowStatus() ShowStatus, HideStatus
ToggleOneMotionSelMove() OneMotionSelMove, ClickSelClickMove
ToggleHyperSpace() GoHyperSpace, LeaveHyperSpace
ImportOtherFileType(<x>) (import using a filter named <x>)
BrowseOtherType(<x>) (browse using a filter named <x>)
In addition to the above list, the following are also valid COMMAND
names (having the obvious meaning): ScrollLeft(), ScrollRight(),
ScrollUp(), ScrollDown(), SelectMode(), DrawText(), DrawBox(), Dra‐
wOval(), DrawPoly(), DrawPolygon(), DrawRCBox(), DrawArc(), and
SelectVertexMode().
COLORS AND COLORMAPS
In most X environments, only 256 colors can be displayed at once. In
these environment, if an application needs 128 colors and another
application needs a totally different 129 colors, both applications can
not be displayed at once with all the colors they want. X solves the
problem by allowing applications to use their own colormaps (known as
private colormaps). Each private colormap can have at most 256 colors.
There is also a shared colormap available for applications that do not
wish to use private colormaps. The main problem with using private
colormaps is that a user will see the the well-known colormap flashing
phenomenon when he/she switchs in and out of applications that use pri‐
vate colormaps.
Tgif uses the shared colormap initially. When it needs more color than
what is available in the shared colormap, it will use a private col‐
ormap automatically. When tgif no longer needs the extra colors, it
does not automatically revert to using the shared colormap because it
needs to be able to undo operations that use the extra colors. If one
does no longer needs the objects in the undo buffer, one can select
FlushUndoBuffer() from the Edit Menu to flush the undo buffer. At this
point, tgif will attempt to use the shared colormap to avoid the col‐
ormap flashing problem. If one often uses XPM and GIF objects, one can
bind the <Shift>f key to the FlushUndoBuffer() operation by setting the
following X default and uses the <Shift>f key to regain entries in the
colormap when an XPM/GIF object is deleted:
Tgif.ShortCuts: !<Key>F:FlushUndoBuffer()
Even when a private colormap is used, only 256 colors can be used at
once. Therefore, it is not possible to import two 256-colors GIF files
into the same drawing unless the colors are somehow reduced to fit in
the 256-colors colormap. This can be done through dithering which is
described in the IMPORT RASTER GRAPHICS section below.
IMPORT RASTER GRAPHICS
The native raster graphics formats that tgif supports are the XBM and
XPM formats. In order to import color raster graphics file of another
format, tgif can work with external tools that can convert non-XPM for‐
mat files to an XPM files. A popular raster format conversion toolkit
is the pbmplus(1) (also known as the netpbm(1)) toolkit. It can con‐
vert a GIF file (e.g., "foo.gif") to an XPM file (e.g., "foo.xpm") with
the following command (giftopnm is in netpbm; an earlier version of it
called giftoppm exists in pbmplus):
giftopnm foo.gif | ppmtoxpm > foo.xpm
When working with tgif, a GIF file name will be supplied by tgif and
the output of ppmtoxpm will be directly read by tgif through a pipe;
therefore, the previous sequence is replaced by an X default containing
the following form (which happens to be the default setting for the
Tgif.GifToXpm X default):
giftopnm %s | ppmtoxpm
The "%s" is to be replaced by a GIF file name. The above is referred
to as a filter.
To be able to import other types of raster graphics files, one can use
Tgif.MaxImportFilters and Tgif.ImportFilter# X resources to specify
additional filters. The following example adds a JPEG filter:
Tgif.MaxImportFilters: 1
Tgif.ImportFilter0: \n\
JPEG-222 jpg;jpeg \n\
djpeg -gif -colors 222 %s | \n\
giftopnm | ppmtoxpm
The "JPEG-222" above is the name given to the filter (must not contain
any space character). The "jpg;jpeg" are possible file extensions sep‐
arated by semicolons. The rest is the filter specification. The
djpeg(1) program is part of the libjpeg distribution. It can convert a
JPEG file to a GIF file. The above filter also restrict the output to
have a maximum of 222 colors. (The 222 is chosen arbitrarily. Many
XPM files use some ``standard'' 32 colors, so one may want to leave
room form them.)
To invoke a filter, one can select ImportOtherFile() or BrowseOther()
commands from the File Menu. This will bring up a dialogbox listing
the available filters by their names (e.g., "JPEG-222"). After select‐
ing a filter, tgif continues in a similar manner as with invoking
ImportXPixmap() or BrowseXPixmap() commands from the File Menu.
The above example is not suitable for the BrowseOther() command because
only 256 colors can be used in a drawing (as explained in the COLORS
AND COLORMAPS section above). In order for BrowseOther() to work well,
one can use dithering to represent an image with a dithered image that
only uses a set of standard colors. The example below uses ppmdither
from the pbmplus/netpbm toolkit:
Tgif.MaxImportFilters: 2
Tgif.ImportFilter0: \n\
JPEG-222 jpg;jpeg \n\
djpeg -gif -colors 222 %s | \n\
giftopnm | ppmtoxpm
Tgif.ImportFilter1: \n\
JPEG-dithered jpg;jpeg \n\
djpeg -gif %s | \n\
giftopnm | ppmdither | ppmtoxpm
If one is working with one JPEG image, one can select ImportOtherFile()
then select "JPEG-222" to get as many as 222 colors. If one is brows‐
ing for JPEG images, one can select BrowseOther() then select "JPEG-
dithered".
OBJECT NAMES
If an object contains an attribute (please see the ATTRIBUTES sections
below for details) whose name is the string "name" (case-sensitive),
the value part of the attribute is the name of the object. Subobject
of a composite object can be named using a path, e.g.,
<t>!<s1>!<s2>!..., where <t> is the name of a top-level object which
directly contains <s1> which directly contains <s2>, etc.
The following is not fully supported, yet (only the #<page> form is
supported at this time). Every object in a tgif file can be uniquely
named using the notation #<page>!<path>, where <page> can be a string
that specifies the name of a page or #<number> which specifies a page
number. The <path> is described in the previous paragraph. If an
object o1 is referenced by another object o2 within the same file (no
file name or URL is specified before #) and <page> is omitted, then o1
must be on the same page as o2. If a file name or URL is specified
before # and <page> is omitted, then o1 must be on the first page.
ATTRIBUTES
Attributes are text strings of the form name=value or value which are
attached to either the current drawing or any non-text objects. An
attribute attached to the current drawing is called a file attribute;
otherwise, it is a regular attribute. Attributes can be attached and
detached from these objects except in the following case:
Attributes appearing in the symbol object in a building-block
object file can not be detached when the building-block object
is instantiated. These attributes are considered to be the
``inherited'' attributes of the icon object. (If it is really
necessary to detach inherited attributes of an icon object, the
icon object can be ``de-iconified'' by using UnMakeIconic() in
the Special Menu to make it a grouped object; then the
attributes can be detached.)
A file attribute is always invisible. For a regular attribute, the
user has control over which part of the attribute is displayed. An
entire attribute can be made invisible, or only its name can be made
invisible (accomplished through the commands under the special menu,
such as #m, #n, #j, #-, and ^#h).
TELEPORT/HYPERJUMP
Tgif provides the mechanism to travel between .obj and .sym files. If
the middle mouse button is clicked on an object with the <Shift> key
held down, tgif looks for an attribute named warp_to (by default) or
href of that object. The only difference between warp_to and href is
that ".obj" is automatically appended to the value of a warp_to
attribute while the value of a href attribute is taken as is. (Please
note that warp_to is obsolete now. It is still supported for the sake
of compatibility.) If such an attribute is found, the value part of
the attribute is interpreted as the name of a .obj file to travel to.
(If tgif is in the hyperspace mode, then clicking the left mouse button
has the same effect.) If there are multiple href attributes on the
object, but are in different colors, tgif will use the one that has the
same color as the current color appearing in the Choice Window. If the
current file is modified, the user is prompted to save the file before
traveling to the next file. If the value part of the href attribute
starts with the '/' character, the value is treated as an absolute file
name; otherwise, it is treated as a relative file name.
HYPERSPACE
Tgif provides a hyperspace mode to facilitate traveling between .obj
files. The hyperspace mode is entered when GoHyperSpace() is selected
from the Navigate Menu. In hyperspace mode, the little window below
the Message Window will show a little space ship. The hyperspace mode
is also automatically entered when a remote URL is opened (unless the
Tgif.AutoHyperSpaceOnRemote X default is set to false).
In the hyperspace mode, certain objects are considered hot-links. When
the cursor is placed on top of these object, it will change from a
pointer to a hand to indicate that clicking on the left mouse button
will invoke some actions. An object is a hot-link if it contains an
attribute described in either the TELEPORT/HYPERJUMP, LAUNCH APPLICA‐
TIONS, or INTERNAL COMMANDS section.
The hyperspace mode is exited when the drawing mode is changed or the
LeaveHyperSpace() is selected from the Navigate Menu.
LAUNCH APPLICATIONS
Tgif provides the mechanism to launch applications. If the middle
mouse button is clicked on an object with the <Shift> key held down,
tgif looks for an attribute named launch (by default) of that object.
If such an attribute is found, the value part of the attribute is
interpreted as a sh(1) command to execute. Same color rule applies as
described in the TELEPORT/HYPERJUMP section above. If the command ends
with the '&' character, tgif forks itself (what actual happens depends
on whether the _BACKGROUND_DONT_FORK compiler flag is defined or not at
compile time) and the command is executed by the child process; other‐
wise, popen() is used to execute the command (in this case, if the com‐
mand hangs, there is no way provided to terminate the command, and tgif
will not be able to recover from it). Within the command, values of
other attributes of the same object can be used. The syntax is:
$(attr), where attr is the name of another attribute.
For example, if one wants to perform a man(1) function, one can draw a
box; enter a line of text "title=tgif"; enter another line of text
"launch=xterm -rw -e man $(title)"; select all three objects using ^a
keyboard command; attach the text strings to the box using #a keyboard
command; and launch the man(1) command by clicking the middle mouse
button on the box (or the text strings) withe the <Shift> key held
down. If one wants to be more fancy, the box can be replaced by an X11
pixmap object; the 'launch' attribute can be made invisible; and the
'title' attribute can be center justified and with its name hidden
using the #m keyboard command.
By default, launching of an application is by default disabled in the
hyperspace mode for security considerations (this can be overridden by
the Tgif.AllowLaunchInHyperSpace X default setting). If a lunch com‐
mand is encountered in the hyperspace mode, the command is displayed
and the user is prompted to see if he/she wants to execute the command.
INTERNAL COMMANDS
Tgif provides the mechanism to execute internal commands. If the mid‐
dle mouse button is clicked on an object with the <Shift> key held
down, tgif looks for an attribute named exec (by default) of that
object. If such an attribute is found, the value part of the attribute
is interpreted as a list of internal commands (separated by semicolor)
to execute. Same color rule applies as described in the TELE‐
PORT/HYPERJUMP section above. A command usually takes the form:
<cmd_name> ( <arg1>, <arg2>, ..., <argN> )
An argument of a command can be a string argument or a numeric argu‐
ment. A string argument must be enclosed in double-quotes. A numeric
argument can be a numerical value or a string of the form "$(x)", where
x is the name of another attribute (this form is referred as the sub‐
stitution form). A string argument can also contain substitution form.
Please note that only one-level substitution are performed (the collec‐
tion of internal commands should be viewed as a simple scripting lan‐
guage and not a declaration language).
When an attribute is referenced in an internal command, the attribute
name can be in the form, <obj_name>.<string>, where <obj_name> must be
in the form specified in the OBJECT NAMES section above and <string>
contains only alphanumeric characters and the underscore ('_') charac‐
ter.
The following internal commands are supported:
launch(<attr_name>)
The value of the attribute specified by <attr_name> is inter‐
preted as a sh(1) command to execute. Please see the LAUNCH
APPLICATIONS section above for more details.
exec(<attr_name>)
The value of the attribute specified by <attr_name> is inter‐
preted as an internal command to execute. This is similar to a
subroutine call. Please note that the internal command is exe‐
cuted in the context of the top-level which contain the
attribute.
mktemp(<str>,<attr_name>)
This command makes a unique file name. The <str> argument is a
template string, e.g., "/tmp/TgifXXXXXX". The result of mktemp
is stored as the value of the attribute specified by
<attr_name>. Please see the man pages of the C library function
on mktemp for more details.
create_file_using_simple_template(<template>,<out‐
put>,<str>,<attr_name>)
The file specified by <template> is scanned for a line that
matches <str>. When such a line is found, that line is replaced
by the value of the attribute specified by <attr_name>. The
result is put into the file specified as <output>.
update_eps_child(<eps_file_name>)
This only works if the object being executed is a composite
object. If the object has a component which is an imported EPS
(Encapsulated PostScript) object, it is replaced by the EPS file
specified by <eps_file_name>. If the object does not contain an
EPS subobject, an EPS subobject is created.
update_xbm_child(<xbm_file_name>)
This only works if the object being executed is a composite
object. If the object has a component which is an imported XBM
(X11 bitmap) object, it is replaced by the XBM file specified by
<xbm_file_name>. If the object does not contain an XBM subob‐
ject, an XBM subobject is created.
update_xpm_child(<xpm_file_name>)
This only works if the object being executed is a composite
object. If the object has a component which is an imported XPM
(X11 pixmap) object, it is replaced by the XPM file specified by
<xpm_file_name>. If the object does not contain an XPM subob‐
ject, an XPM subobject is created.
flip_deck(<times>,<frames_per_second>,<style>)
This only works if the object being executed is a composite
object and all subobjects of the composite object are X11 bitmap
or X11 pixmap objects and have identical positions and sizes.
The <times> argument specifies the number of times the deck is
flipped. It can be a number or the string "infinite". The
<frames_per_second> argument must be a number between 1 and 60.
The <style> argument can be either "linear" or "ping_pong".
When this command is being executed, any mouse button click or
key click aborts command execution.
read_file_into_attr(<file_name>,<attr_name>)
This command reads a file into an attribute. The <file_name>
argument names a file, e.g., "/tmp/foo". The content of the
file is read as the value of the attribute specified by
<attr_name>. If the file can not be opened for read, the
attribute's value is set to an empty string.
write_attr_into_file(<attr_name>,<file_name>)
This command writes the value of an attribute into a file. The
<file_name> argument names a file, e.g., "/tmp/foo". The value
of the attribute specified by <attr_name> is written into
<file_name>.
append_attr_into_file(<attr_name>,<file_name>)
This command appends the value of an attribute into a file. The
<file_name> argument names a file, e.g., "/tmp/foo". The value
of the attribute specified by <attr_name> is appended into
<file_name>.
select_obj_by_name(<obj_name>)
This command silently (no highlighting handles) selects an
object named <obj_name>. Please see the OBJECT NAMES section
above for the specification of object names.
unselect_all_obj()
This command de-selects all selected objects. If the
select_obj_by_name() command is used, this command must be used
eventually.
move_selected_obj_relative(<dx>,<dy>)
This command moves the selected object by <dx> absolute units in
the x direction and <dy> absolute units in the y direction.
repeat(<cmd_attr_name>,<times>)
This command executes the internal command in the
<cmd_attr_name> attribute <times> times.
hyperjump(<attr_name>)
This command teleports to the file name or URL name found in the
<attr_name> attribute.
make_cgi_query(<dest_attr_name>,<url_name>,<list_attr_name>)
This command constructs an URL in the Common Gateway Interface
(CGI) format in the <dest_attr_name> attribute. <url_name>
names the CGI server script and <list_attr_name> names an
attribute whose value are comma-separated attribute names. For
example, if an object has the following attributes:
attr_list=last_name,first_name
last_name=Cheng
first_name=Bill
final_url=
exec=make_cgi_query(final_url,
http://bourbon.cs.ucla.edu:8001/cgi-bin/test-cgi,
attr_list)
Executing this object will construct the following string in
final_url:
http://bourbon:8001/cgi-bin/test-
cgi?last_name=Cheng&first_name=Bill
An subsequent hyperjump(final_url) command can be invoked to
execute the corresponding "test-cgi" CGI server script with the
last_name and first_name arguments.
For a detailed description of CGI scripts, the reader is
referred to [2].
wait_click(<cursor_name>,<grab>,<attr_name>)
This command displays the <cursor_name> cursor and waits for the
user to click a mouse button. If <cursor_name> is the string
NULL (case-sensitive), the cursor will not change. If <Btn1> is
clicked, the command terminates and 1 is placed in <attr_name>.
If <Btn2> is clicked, 2 is placed in <attr_name>, etc. If
<grab> set to TRUE (case-sensitive), then the mouse is grabbed
by tgif. Valid <cursor_name> can be found in <X11/cursorfont.h>
(without the XC_ prefix).
sleep(<cursor_name>,<ms_interval>)
This command displays the <cursor_name> cursor and waits for
<ms_interval> milliseconds to elapse. If <cursor_name> is the
string NULL (case-sensitive), the cursor will not change. This
command can be interrupted (and aborted) by any mouse clicks or
key strokes. Valid <cursor_name> can be found in <X11/cursor‐
font.h> (without the XC_ prefix).
begin_animate()
This command is used to start an animation sequence. By
default, tgif prepares for undo/redo. For a long animation
sequence, the undo/redo records may take up a lot of memory. In
this case, disable_undo() (described below) should be used
before this command.
end_animate()
This command is used to terminate an animation sequence.
set_redraw(<true_or_false>)
This command is used to temporarily disable redraw if
<true_or_false> is FALSE (case-sensitive). If a shuf‐
fle_obj_to_top() command is used before a move command,
set_redraw(FALSE) and set_redraw(TRUE) should be used immedi‐
ately before and immediately after, respectively, the shuf‐
fle_obj_to_top() command.
set_selected_obj_color(<color_str>)
This command changes the color of the selected object to
<color_str>.
set_selected_obj_fill(<fill_index>)
This command changes the fill pattern of the selected object to
<fill_index>, which must be between 0 (for no fill) and 31.
set_selected_obj_pen(<pen_index>)
This command changes the pen of the selected object to
<pen_index>, which must be between 0 (for no pen) and 31.
set_selected_obj_line_width(<width>,<arrow_w>,<arrow_h>)
This command changes the line width, arrow width, and arrow_h of
the selected object to <width>, <arrow_w>, and <arrow_h>,
respectively. If <arrow_w> or <arrow_h> is -1, the arrow width
or arrow height, respectively, is not changed.
set_selected_obj_spline(<spline_type>)
This command changes the spline type of the selected object to
<spline_type>, which can be straight, spline, or interpolated.
set_selected_obj_arrow(<arrow_type>)
This command changes the arrow type of the selected object to
<arrow_type>, which can be none, right, left, or double.
set_selected_obj_dash(<dash_index>)
This command changes the dash type of the selected object to
<dash_index>, which must be between 0 (solid) and 8.
inc(<attr_name>,<expr>)
This command increment <attr_name> by the expression <expr>.
Both the value of <attr_name> and <expr> must be integers.
Please see the ARITHMETIC EXPRESSIONS section below for details
about expressions.
dec(<attr_name>,<expr>)
This command decrement <attr_name> by <expr>. Both the value of
<attr_name> and <expr> must be integers.
shuffle_obj_to_top(<obj_name>)
This command move <obj_name> to the top. If <obj_name> is a
subobject, it is raised to the top, relative to its siblings.
This command is useful in animation where a selected frame (sub‐
object) can be raised to the top.
disable_undo()
This command cleans up the undo/redo records and disable undo
(and stop recording undo/redo information). The original his‐
tory depth is saved away. This command should be used before a
long animation sequence.
enable_undo()
This command restores the history depth saved away by the dis‐
able_undo() command and enables undo/redo. This command should
be eventually used after disable_undo() is called.
get_drawing_area(<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>)
This command stores the absolute coordinate of the current draw‐
ing area in the specified attributes. <ltx_attr> stores the
left-top X coordinate, <lty_attr> stores the left-top Y coordi‐
nate, <rbx_attr> stores the right-bottom X coordinate, and
<rby_attr> stores the right-bottom Y coordinate.
get_selected_obj_bbox(<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>)
This command stores the absolute coordinate of the bounding box
of the selected object in the specified attributes. <ltx_attr>
stores the left-top X coordinate, <lty_attr> stores the left-top
Y coordinate, <rbx_attr> stores the right-bottom X coordinate,
and <rby_attr> stores the right-bottom Y coordinate. The bound‐
ing box is computed assuming that all lines are of width 0.
move_selected_obj_absolute(<ltx>,<lty>)
This command moves left-top corner of the selected object to
(<ltx>,<lty>).
assign(<attr_name>,<expr>)
This command assigns <expr> to <attr_name>. <expr> must be
evaluated to a numeric value.
strcpy(<attr_name>,<string>)
This command copies <string> into <attr_name>.
while(<expr>,<cmd_attr_name>)
This command keeps executing the internal command in
<cmd_attr_name> until <expr> evaluates to 0.
if(<expr>,<then_cmd_attr_name>,<else_cmd_attr_name>)
If <expr> evaluates to 0, the internal command in
<else_cmd_attr_name> is executed; otherwise, the internal com‐
mand in <then_cmd_attr_name> is executed. <then_cmd_attr_name>
or <else_cmd_attr_name> can be the string NULL (case-sensitive);
in this case, no corresponding action is taken.
get_current_file(<attr_name>)
This command stores the full path name of the current file in
<attr_name>.
getenv(<attr_name>,<env_var_name>)
This command stores the environment variable named
<env_var_name> in <attr_name>.
strlen(<attr_name>,<string>)
This command assigns the number of characters in <string> to
<attr_name>.
substr(<attr_name>,<string>,<start_index>,<length>)
This command copies <length> characters, starting from the char‐
acter index <start_index>, of <string> into <attr_name>. The
<start_index> is zero-based.
strstr(<attr_name>,<string>,<sub_string>)
This command finds the first occurrence of <sub_string> in
<string> and copies <sub_string> and the rest of the string into
<attr_name>.
strrstr(<attr_name>,<string>,<sub_string>)
This command finds the last occurrence of <sub_string> in
<string> and copies <sub_string> and the rest of the string into
<attr_name>.
unmake_selected_obj_iconic()
This command has the same effect as selecting UnMakeIconic()
from the Special Menu except that at least one object must be
selected already.
hyperjump_then_exec(<attr_name>,<attr_name_to_exec>)
This command teleports to the file name or URL name found in the
<attr_name> attribute then executes the internal command speci‐
fied by the <attr_name_to_exec> attribute in the new file.
show_attr(<attr_name>)
This command makes the <attr_name> attribute visible.
hide_attr(<attr_name>)
This command makes the <attr_name> attribute invisible.
show_attr_name(<attr_name>)
This command makes the name part of the <attr_name> attribute
visible.
hide_attr_name(<attr_name>)
This command makes the name part of the <attr_name> attribute
invisible.
show_value(<attr_value>)
This command makes the attribute whose name is empty and whose
value is <attr_value> visible.
hide_value(<attr_value>)
This command makes the attribute whose name is empty and whose
value is <attr_value> invisible.
get_attr_bbox(<ltx_attr>,<lty_attr>,<rbx_attr>,<rby_attr>,<attr_name>)
This command stores the absolute coordinate of the bounding box
of the <attr_name> attribute in the specified attributes.
<ltx_attr> stores the left-top X coordinate, <lty_attr> stores
the left-top Y coordinate, <rbx_attr> stores the right-bottom X
coordinate, and <rby_attr> stores the right-bottom Y coordinate.
The bounding box is computed assuming that all lines are of
width 0.
size_selected_obj_absolute(<abs_w>,<abs_h>)
This command stretches the right bottom corner of the selected
object so that its width becomes <abs_w> and height becomes
<abs_h>.
message_box(<attr_name>,<msg>,<title>,<style>)
This command displays a messagebox with <title> as the title and
<msg> as the message. <style> can be the string "info", "ync",
"yn", or "stop". The messagebox display an OK button for the
"info" or "stop" styles, YES/NO/CANCEL buttons for the "ync"
style, YES/NO buttons for the "yn" style. When the user click a
button in the messagebox, the name of the button will be placed
in <attr_name>. If the user cancels the messagebox by typing
the <ESC> key, <attr_name> will be set to the string "CANCEL".
If <attr_name> is the string NULL (case-sensitive), the informa‐
tion about which button is clicked is not written anywhere. If
<title> is the string NULL, Tgif will be the title for the mes‐
sagebox.
get_user_input(<attr_name>,<msg1>,<msg2>)
This command displays a dialogbox with <msg1> in the first line
and <msg2> in the second line. If <msg2> is the string
"USE_CURRENT_DIR", the second line displays the current direc‐
tory. The user can type in a line in the dialogbox which get
placed in <attr_name>. If the user cancels the dialog by typing
the <ESC> key, <attr_name> will be set to the empty string.
add_attr_to_selected_obj(<attr_name>,<attr_value>,<abs_x>,<abs_y>)
This command adds <attr_name>=<attr_value> to a selected object
and place the attribute at (<abs_x>,<abs_y>). If <attr_name> is
the string NULL (case-sensitive), the attribute's name will be
the empty string. If <abs_x> and <abs_y> are both NULL (case-
sensitive), the attribute will be placed below the lower left
corner or the object.
user_end_an_edge(<attr_name>,<abs_x>,<abs_y>)
This command starts a polyline/open-spline at (<abs_x>,<abs_y>),
switches the drawing mode to the draw polyline/open-spline, and
lets the user finishes the polyline/open-spline. If the end‐
point falls in an object having an attribute type=port, that
object's name will be placed in <attr_name>, if <attr_name> is
not the string NULL (case-sensitive).
user_draw_an_edge(<start_attr_name>,<end_attr_name>)
This command switches the drawing mode to the draw poly‐
line/open-spline and lets the user draw a polyline/open-spline.
If the first endpoint falls in an object having an attribute
type=port, that object's name will be placed in
<start_attr_name>, if <attr_name> is not the string NULL (case-
sensitive). If the last endpoint falls in an object having an
attribute type=port, that object's name will be placed in
<end_attr_name>, if <attr_name> is not the string NULL (case-
sensitive).
get_a_poly_vertex_abso‐
lute(<x_attr_name>,<y_attr_name>,<obj_name>,<index>)
This command stores the absolute coordinate of the <index>th
vertex of <obj_name> in attributes specified by <x_attr_name>
and <y_attr_name>. The object specified by <obj_name> must be
either a poly/open-spline or a polygon/closed-spline object.
move_a_poly_vertex_absolute(<obj_name>,<index>,<abs_x>,<abs_y>)
This command moves the <index>th vertex of <obj_name> to the
absolute coordinate (<abs_x>,<abs_y>). The object specified by
<obj_name> must be either a poly/open-spline or a poly‐
gon/closed-spline object.
post_attr_and_get_cgi_result(<url_attr>,<query_attr>,<result_attr>)
This command makes an HTTP request using the POST method.
<url_attr> names the attribute that contains the URL (which usu‐
ally names a CGI server script). <query_attr> names the
attribute whose value is the data to be posted. <result_attr>
names the attribute for receiving the results. For example, if
an object has the following attributes:
url=http://bourbon.cs.ucla.edu:8001/cgi-bin/echo-post
query=Hello World!
result=
exec=post_attr_and_get_cgi_result(url,query,result)
Executing this object will post "Hello World!" to the specified
CGI script. In this case, the result of executing the script
just echoes "Hello World!" back (along with some other bookkeep‐
ing information).
navigate_back()
This command performs the same operation as if the Navigate‐
Back() is selected from the Navigate Menu.
stop() This command stops the execution of all internal commands.
sqrt(<attr_name>,<expr>)
This command assigns the square-root of <expr> to <attr_name>.
<expr> must be evaluated to a non-negative numeric value.
random(<attr_name>)
This command assigns a random integer to <attr_name> using the C
library function rand().
round(<attr_name>,<expr>)
This command assigns the round of <expr> to <attr_name>.
redraw_obj(<obj_name>)
This command redraws the area occupied by <obj_name>.
redraw_drawing_area()
This command redraws the whole drawing area (visible through the
Canvas Window).
itox(<attr_name>,<digits>,<expr>)
This command assigns <attr_name> to be the hex value of <expr>.
<digits> (which must be between 1 and 8, inclusive) is the final
width of the hex value (zeroes are added on the left).
for_i(<attr_name>,<min_val>,<max_val>,<increment>,<cmd_attr_name>)
This command is the same as the following sequence of commands:
assign(<attr_name>,<min_val>);
while($(<attr_name>) <= <max_val>,loop)
where loop has the following value:
exec(<cmd_attr_name>);
inc(<attr_name>,<increment>)
Please note that <min_val>, <max_val>, and <increment> are only evalu‐
ated once prior the execution of this command.
set_file_not_modified()
This command sets the file modified flag to false.
new_id(<attr_name>)
This command generates an object ID, which is (unique in the
current drawing, and stores it in <attr_name>.
rotate_selected_obj(<angle>)
This command rotates the selected object by <angle> degrees.
Positive angle is clockwise.
call_simple_shortcut(<shortcut_name>)
This command calls a shortcut named <shortcut_name> which takes
no arguments. Please see the SHORTCUTS section for a descrip‐
tion of shortcuts.
call_one_arg_shortcut(<shortcut_name>,<arg>)
This command calls a shortcut named <shortcut_name> that takes
one argument and pass <arg> to it. Please see the SHORTCUTS
section for a description of shortcuts.
substitute_attr(<attr_name>,<src_attr_name>,<replace_attr_name>,<pat‐
tern_str>)
This command replaces occurrances of <pattern_str> in the value
part of the attribute specified by <src_attr_name> by the value
of the attribute specified by <replace_attr_name> and write the
result into the attribute specified by <attr_name>.
get_file_size(<attr_name>,<file_name>)
This command puts the size of file specified by <file_name> in
the attribute specified by <attr_name>.
is_file(<attr_name>,<file_name>)
This command puts a "1" in the attribute specified by
<attr_name> if the file specified by <file_name> exists. It
puts a "0" otherwise.
index(<attr_name>,<string>,<sub_string>)
This command finds the first occurrence of <sub_string> in
<string> and copies the zero-based index into <attr_name>.
rindex(<attr_name>,<string>,<sub_string>)
This command finds the last occurrence of <sub_string> in
<string> and copies the zero-based index into <attr_name>.
get_number_of_lines_in_attr(<result_attr>,<attr_name>)
This command counts the number of lines in the attribute speci‐
fied by <attr_name> and writes the count into <result_attr>.
get_line_in_attr(<result_attr>,<attr_name>,<line_number>)
This command copies the nth line of the attribute specified by
<attr_name> into <result_attr>, where n is a zero-based index
specified by <line_number>.
trim(<attr_name>)
This command removes leading and trailing blank characters from
the attribute specified by <attr_name>.
is_attr(<result_attr>,<attr_name>)
This command writes a "1" into <result_attr> if the attribute
specified by <attr_name> exists. It writes a "0" into
<result_attr> otherwise.
find_obj_names(<result_attr>,<obj_name>,<attr_name_value>)
This command finds all objects that are direct sub-objects of
the object specified by <obj_name> and writes their names into
<result_attr>. If <obj_name> is an empty string, all top-level
objects are scanned.
<attr_name_value> specifies a filter for the objects. If
<attr_name_value> is the empty string, all qualifying objects
are selected. If <attr_name_value> is of the form "<string>=*",
an object is selected if it has an attribute named <string>. If
<attr_name_value> is of the form "<string>=<value>", an object
is selected if it has an attribute named <string> and its corre‐
sponding value is <value>. If <attr_name_value> does not con‐
tain the '=' character, an object is selected if it has an
attribute whose name is empty and the corresponding value is
identical to <attr_name_value>.
If n objects are matched, the attribute specified by
<result_attr> is updated with n+1 lines. The value of the
zeroth line becomes n and the object names becomes lines 1
through n of <result_attr>. The get_line_in_attr() internal
command can be used to retrieve the object names.
tokenize(<result_attr>,<string>,<separator>)
This command breaks <string> into tokens which are separated by
the <separator> character and writes the tokens into
<result_attr>. <separator> must be a string of length of 1 and
it must not be the space character, the single-quote character,
or the double-quote character. If a token contains the separa‐
tor character, the token can be surrounded by a pair of single-
quotes or double-quotes which are automatically removed when
this command is executed.
If n tokens are found, the attribute specified by <result_attr>
is updated with n+1 lines. The value of the zeroth line becomes
n and the tokens becomes lines 1 through n of <result_attr>.
The get_line_in_attr() internal command can be used to retrieve
the tokens.
move_attr_relative(<attr_name>,<dx>,<dy>)
This command moves the attribute whose name is <attr_name> by
<dx> absolute units in the x direction and <dy> absolute units
in the y direction.
get_number_of_vertices(<result_attr>,<obj_name>)
This command copies the number of vertices of the object speci‐
fied by <obj_name> into <result_attr>. The specified object
must be a polyline (open-spline) or a polygon (closed-spline).
is_obj_transformed(<result_attr>,<obj_name>)
This command writes a "1" into <result_attr> if the object spec‐
ified by <obj_name> is transformed (rotated or sheared). It
writes a "0" into <result_attr> otherwise.
ARITHMETIC EXPRESSIONS
Certain internal commands allow arithmetic expressions as arguments.
Infix notation is used. Supported operators (and their precedences)
are listed below.
? 1 if-then-else, e.g. <rel> ? <iftrue> : <else>
: 2 if-then-else, e.g. <rel> ? <iftrue> : <else>
|| 3 logical OR
&& 4 logical AND
| 5 bit-wise OR
^ 5 bit-wise XOR
& 5 bit-wise AND
== 6 equal
!= 6 not-equal
> 7 greater than
< 7 less than
>= 7 greater than or equal to
<= 7 less than or equal to
<< 8 shift left
>> 8 shift right
+ 9 add
- 9 subtract
* 10 multiple
/ 10 divide
// 10 integer divide
% 10 mod
! 11 logical NOT
~ 11 bit-wise invert/NOT
) 12 closed parenthesis
( 13 open parenthesis
GENERATING IMAGEMAP FILES
This section describes how to generate NCSA imagemap and CERN clickable
image files. The Tgif.ImageMapFileFormat X default decides whether to
generate a NCSA imagemap or a CERN clickable image file. Since the two
formats are very similar, we will only discuss how to generate NCSA
imagemap files. For more information about NCSA imagemap, please see
[3]. For more information about CERN clickable image, please see [4].
The Tgif.GenerateImageMap X default should be set to ``true'' to enable
the imagemap generation. When printing in the GIF format (see the
BASIC FUNCTIONALITIES section about printing), an XPM file (which will
be removed at the end of this process) is generated first. (The value
specified by the Tgif.InitExportPixelTrim X default is used to trim
extra pixels. Using these values forms an escape mechanism to fix an
idiosyncrasy that tgif can not figure out exactly how big the whole
image is.)
The XPM version is specified by the Tgif.XPmOutputVersion X default
unless the Tgif.UseXPmVersion1ForImageMap X default is set to ``true'',
which forces the XPM1 format. Then the command specified by the
Tgif.XpmToGif X default is executed to convert the XPM file into a GIF
(Generic Interchange Format) file which can be used by software such as
NCSA's Mosaic(1). The file extension for the GIF file is specified by
the Tgif.GifFileExtension X default. Together with the GIF file, an
imagemap file with file extension specified by the Tgif.ImageMapFileEx‐
tension X default is generated. The content of the imagemap is gener‐
ated as follows.
Tgif first looks for a file attribute with attribute name href. The
value of the attribute is written as the default URL. If such a file
attribute can not be found, imagemap generation is aborted. If it is
found, then all objects in the file are scanned. For an object having
an attribute named href, the value of the attribute is written as the
URL for a method line in the imagemap. If the object is neither a cir‐
cle nor a poly/polygon, the rectangle method is used.
GENERATING MICROSOFT WINDOWS EPSI FILES
Some Microsoft Windows (TM) applications do not understand standard
PostScript %%BeginPreview, %%EndImage, and %%EndPreview comments. This
section describes how to generate an EPSI file which is understood by
them. If the Tgif.TiffEPSI X default is set to ``true'' and one prints
in the EPSI format, this feature will be invoked. In this case, the
generated EPSI file will contain 30 bytes of binary information in the
beginning of the file and a TIFF image (also binary) at the end of the
file. This file also will not contain the %%BeginPreview, %%EndImage,
and %%EndPreview comments. A file in this format is normally not con‐
sidered to be a PostScript file except under Windows.
When this feature is enabled, tgif generates a normal EPSI file first,
then dump the current content of the file into an X11 bitmap file. The
command specified in Tgif.XbmToTiff is executed to generate a TIFF
image which is then append at the end of the EPSI file.
LOCKING OBJECTS
Objects can be locked and unlocked using #< and #> keyboard commands.
When a selected object is locked, it is shown with gray handles. A
locked object can be moved, stretched, flipped, or rotated; however,
its properties, such as fill pattern, width, etc., can be changed.
Locked objects can also be deleted. When a locked object is grouped
with other objects, the resulting grouped object is also locked. A
locked object can be used as an anchor to align other objects; however,
DistributeObjs() command will fail if any objects are locked. Locked
objects do not participate in any operations in the select vertex mode.
UNDO/REDO
Most operations can be undone and redone. The Tgif.HistoryDepth X
default controls the size of the undo buffer. If it is set to -1, then
the undo buffer's size is infinite. The undo buffer is flushed when
the New() or Open() commands are executed (from the File Menu), when
the FlushUndoBuffer() command is executed from the Edit Menu, or when
Pop() is executed from a .sym file. If a private colormap is used
(automatically done when new colors can not be allocated from the
default colormap), executing FlushUndoBuffer() will attempt to reset
the colormap (if the -DDONT_FREE_COLORMAP compile option is not used).
DOMAINS
A domain is a collection of library symbols suitable for instantia‐
tions. A library is implemented as a directory of .sym files, and
therefore, a domain is implemented as a search path. If there are sym‐
bols with the same file name which reside in different directories
specified in the search path, then the one closer to the front of the
search path will be made available for the user to instantiate.
The number of domains is specified by the MaxDomains X default, and the
names of the domains are specified by the DomainPath# X default. The
library search paths are specified by csh environment variables. See
the section on X DEFAULTS for more details.
SELECTING A NAME FROM A POPUP WINDOW
When selecting a file name, a symbol name, or a domain name, tgif pops
up a window with appropriate names for the user to choose from. The
user can use mouse clicks to select an entry. Key strokes can also be
used to specify the desired name; however, tgif attempts to match the
key strokes with names in the selection on the fly. If a match can not
be found, the key strokes are ignored. ^n, ^j, or the DownArrow key
advances the selection down by 1 entry; ^p, ^k, or the UpArrow key
advances the selection up by 1 entry. ^f, ^d, or the DownArrow key
with <Control> key held down advances the selection down by 10 entries;
^b, ^u, or the UpArrow key with <Control> key held down advances the
selection up by 10 entries. '$' will select the last entry, while '^'
will select the first entry. ^w or ^y un-select the selected entry.
If the selected entry is a directory, hitting <CR> will change direc‐
tory; if not, hitting <CR> finishes the selection process and the
selected entry is returned.
In selecting file names to open or import, typing '/' is interpreted as
going to the root directory or specifying an URL. At this point, the
automatic matching of key strokes is temporarily disabled until either
a <TAB> or a <CR> is pressed. Also, clicking the middle mouse button
in the file name area pastes from the clipboard.
The automatic appending of index.obj or .obj (introduced in version
2.16) is obsoleted and an URL is never modified.
The current selection is displayed near the top of the popup window.
Back-space should be used with caution because it might change the cur‐
rent directory to the parent directory.
IMPORTING EPS FILES
Encapsulated PostScript (EPS) files can be imported using the #( key‐
board command. If the EPS file has a preview bitmap (can be generated
using the pstoepsi tool), tgif will display it (HideBit/Pixmap() from
the Layout Menu can be used to disable the displaying of bit‐
map/pixmaps). When the EPS object is saved in a .obj or .sym file,
neither the preview bitmap, nor the PostScript content of the EPS file
is saved. Therefore, when printing such a file (either from tgif or
using prtgif), the EPS file must be present at the same place from
which it was originally imported.
ADDITIONAL FONTS
In addition to the Times, Courier, Helvetica, NewCentury, and Symbol
fonts, additional fonts can be specified using the Tgif.AdditionalFonts
X default. (The default screen fonts can also be replaced, please see
Tgif.HasAlternateDefaultFonts in the X DEFAULTS section for more
details.) Each additional font requires 4 parts, one for each font
style (in the order of Roman, Bold, Italic, and BoldItalic). Each part
contains 3 strings. The first string specifies the family, weight,
slant, and width of the font (please see the man pages for xfontsel(1)
for more details; also there is a second form which is described
below). The second string specifies the registry and encoding of the
font (see xfontsel(1) again). (One can use xlsfonts(1) to see what
fonts are available and pick out the just mentioned two strings from
the output.) The third string specifies the PostScript font name.
For example, if one wants to use the X Lucida font to represent the
PostScript ZapfChancery-MediumItalic font, one can set Tgif.Additional‐
Fonts as follows:
Tgif.AdditionalFonts: \n\
lucida-medium-r-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic \n\
\n\
lucida-demibold-r-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic \n\
\n\
lucida-medium-i-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic \n\
\n\
lucida-demibold-i-normal \n\
iso8859-1 \n\
ZapfChancery-MediumItalic
The above maps all four font styles of the Lucida font to the
ZapfChancery-MediumItalic font (similar to how Symbol font is handled).
The first string can also be specified in a second form which is iden‐
tified by having "%d" as part of the string. For example, one can use
"lucidasans-%d" as the first string. In this case, the actual X font
used will be the specified string with "%d" replaced by the font size.
The encoding string (second string) is ignored (but must be present).
The font name prefix (please see Tgif.FontNamePrefix entry in the X
DEFAULTS section) is also ignored.
MULTIPAGE DRAWING
An object file can contain multiple pages. Two layout modes, stacked
and tiled, for a multipage drawing are supported. In stacked layout
mode, pages are considered to be stacked on top of each other, and
therefore, an object can only appear on one page. In tiled layout
mode, pages are tiled to form a large logical page; in this case, an
object can exist on several physical pages simultaneously. Swiching
between the two modes are considered rare events and can not be undone.
Tgif does not allow switching from the tiled layout mode to the stacked
mode when there exists an object that spans physical page boundaries
because it can not decide which physical page the object belongs.
Page numbers are supported through the use of page numbering objects.
A page number objecting is an object that contains an attribute whose
name is !PAGE_NUM (the name is case-sensitive) and the name part of
that attribute is not shown (hiding an attribute name can be achieved
by using the Move/JustifyAttr() command under the Special Menu). The
value of the attribute determines how the page number is printed. If
the value of the attribute contains a !(STACKED_PAGE_NUM) substring,
that part of the substring will be replaced by the page number if the
page layout mode is stacked. If the page layout mode is tiled, the
string will be printed out as is. If the value of the attribute con‐
tains a !(STACKED_NUM_PAGES) substring, that part of the substring will
be replaced by the number of pages if the page layout mode is stacked.
If the value of the attribute contains a !(TILED_PAGE_ROW) or
!(TILED_PAGE_COL) substring, that part of the substring will be
replaced by the row number or the column number of the physical page if
the page layout mode is tiled.
SPECIAL ATTRIBUTES
There are a few special attributes that tgif recognized. There are
described in this section. They are all case-sensitive.
!PAGE_NUM=<page_number>
This specifies the page numbers in a multipage drawing. Please
see the MULTIPAGE DRAWING section for details.
auto_center_attr
If an attribute's name is empty and the value is auto_cen‐
ter_attr, then all the visible attributes of the owner object
will automatically be centered relative to the bounding box of
the owner object. It doesn't really make sense to have multiple
visible attributes because they will overlap. This attribute is
useful for making simple flowchart elements.
unmakeiconic_on_instantiate
If an symbol object's attribute has an empty attribute name and
the value is unmakeiconic_on_instantiate, then when the symbol
is instantiated, the following commands are performed on the
just-instantiated icon object: 1) UnMakeIconic() command from
the Special Menu, 2) UnGroup() command from the Arrange Menu,
and 3) the "unmakeiconic_on_instantiate" text object is removed.
This attribute is useful for making simple flowchart segments.
retracted_arrows
If an attribute's name is empty and the value is
retracted_arrows for a polyline or open-spline object with more
than 2 vertices, then the arrows of the spline object is
retracted by one vertex.
auto_retracted_arrows
This is very similar to the retracted_arrows above except that
the object must be an interpolated open-spline with only one
arrow head. The spline object is forced to have 3 vertices and
the middle vertex of the spline object is automatically adjusted
when an endpoint is moved.
auto_exec=<internal_command>
If such a file attribute exists, the value is executed when the
file is opened (unless the file is opened as a result of execut‐
ing the hyperjump_then_exec() internal command).
EXPORT TO TABLE
When the ExportToTable() command is selected from the Special Menu,
certain attributes of selected objects are written into a user-speci‐
fied output file in a format which can be easily imported by a spread‐
sheet program or to be used by the MergeWithTable() command described
in the next section. An output file contains columns of strings. Two
columns are separated by a single <TAB> character. The first row of a
output file contains the column names and all other rows contain val‐
ues.
The names of the attributes to be written are specified by the file
attribute named TABLE_ATTRS (which is denoted by !.TABLE_ATTRS here).
The value of the TABLE_ATTRS file attribute is a list of comma-sepa‐
rated attribute names. When ExportToTable() command is executed, the
attribute names specified by !.TABLE_ATTRS are written to the output
file first. Then, for each selected object, every one of its attribute
which appears in the list specified by !.TABLE_ATTRS are written to the
output file in one line. If an object has no attributes that match the
specification, no corresponding line is generated.
MERGE WITH TABLE
When the MergeWithTable() command is selected from the Special Menu, a
selected object is merged (also known as mail-merged on PCs) with a ta‐
ble (data) file (in the same format as the output file described in the
previous section) to generate a new multipage drawing having the
stacked page layout mode.
The selected object contains formating informat, and it is also used as
a template to be replicated for each data row in the table file. If an
attribute of the replica matches the column name of the table, the
attribute value is set to the value in the table file. The replicas
are tiled horizontally first.
Eight attributes must be specified in the template object. They are
all case-sensitive. The ones that measure distances can be specified
in inches ("in"), centi-meters ("cm"), or pixels (if no units are spec‐
ified).
PAPER_WIDTH
This specifies the width of the paper.
PAPER_HEIGHT
This specifies the height of the paper.
LEFT_MARGIN
This specifies the distance to the left edge of the
paper.
TOP_MARGIN
This specifies the distance to the top edge of the paper.
H_PITCH
This specifies the distance between the left edges of the
replicas.
V_PITCH
This specifies the distance between the top edges of the
replicas.
NUM_COLS
This specifies the number of replicas to tile horizon‐
tally before moving down to the next row.
NUM_ROWS
This specifies the number of replicas to tile vertically
before moving to the next page.
After each replica is generated, filled with the data from the table
file, and placed, its attribute named exec is executed (unless an
attribute named EXEC_AFTER_MERGE is specified, in which case, the
attribute named by the EXEC_AFTER_MERGE attribute is executed instead).
If there is no attribute named by the EXEC_AFTER_MERGE attribute, noth‐
ing is executed. (Please see the INTERNAL COMMANDS section for details
on command execution.) One can use the exec command to construct other
attributes from the attributes associated with the data table.
If an attribute whose name is empty and whose value is the string
USER_PLACEMENT, the user will be asked to place the replica (object
name will be displayed in the Status Window when the object is being
placed). In this case, the 8 placement related attributes are ignored.
If an attribute whose name is empty and whose value is the string
STRIP_DOUBLE_QUOTES, data fields surrounded by double-quotes are
stripped.
MIME TYPES AND MAILCAPS
When an URL names an HTTP server, the HTTP server sends the Content-
type of the URL along with the remote file referenced by the URL to
tgif. The Content-type contains information such as the type/subtype
of the file plus some optional fields. If the file is not a tgif file,
the following mechanism is used to view the file.
First, the X defaults are looked up to see if there is an external
viewer specified for the file. Please see Tgif.@@@Viewer in the X
DEFAULTS section below for details. If there's no match, the type/sub‐
type is matched against entries in the MIME-types file. The default
MIME-types file is .mime.types in user's home directory. Please see
Tgif.MimeTypesFile in the X DEFAULTS section on how to override the
default MIME-types file. The first field in each line of the MIME-
types file specifies type/subtype information. If there is a type/sub‐
type match in the MIME-types files, the MailCap files are consulted as
follows.
A line in a MailCap file consists of fields separated by semi-colons.
The first field specifies the type/subtype and the second field speci‐
fies a view command for viewing a file that matches the type/subtype.
For tgif, the view command must contains a single %s substring to be
replaced by local copy of the URL. Only the %t and the %{} optional
fields are supported by tgif. The multipart MIME-type is not sup‐
ported. The type/subtype information of the remote file is matches
against the MailCap files. If a match is found, the corresponding view
command is executed. If no match is found, but the type of the remote
file is either application, audio, image, or video, the file is saved
and no external viewer is launched. Otherwise, the remote file is
assumed to be pure text and tgif will create a text object to view the
text.
The MailCap files are the (colon-separated) files specified by the
MAILCAP environment variable (if defined). If MAILCAP is not defined,
the .mailcap file in the user's home directory is used.
MIME is the Multipurpose Internet Mail Extensions specified in RFC1521,
and MAILCAP is specified in RFC1524.
HOW TO MAKE A BUILDING-BLOCK OBJECT (SYMBOL FILE)
Here are the steps for defining a building-block object, to be used in
a hierarchical design.
1) Draw the representation part of the building-block object.
Group everything together. Select this grouped object.
2) Popup the main menu with the middle mouse button; select ``Spe‐
cial''. Select ``MakeSymbolic'' from the next popup menu. The
selected object becomes a symbol and gets a dashed boundary.
3) Type in attributes as individual text strings. Select the sym‐
bol object and all the text strings to be attached to the sym‐
bol. Type #a (for Attach) to attach attributes to the symbol.
4) (This step is optional.) Build the definition part of the
building-block object. Look at the ``flip-flop.sym'' file for
an example. To look at that file, first, instantiate a ``flip-
flop'' by typing ^i (for Instantiate). Select the flip-flop
from the popup window; place the flip-flop; select the flip-flop
and type ^v (for Push) to see the symbol file.
5) Save and name the file. If the current library path contains
the current directory (or '.'), the symbol just built should be
instantiatable by typing ^i.
X11 PIXMAP (XPM) FORMATS
Tgif can only import X11 pixmaps that satisfy the constraints described
here. The format of the X11 pixmap must be either 1 (XPM1) or 3
(XPM3). Only a subset of the XPM3 format is supported, namely, the key
field for the color specification must be 'c' (for color visuals).
Tools that generate XPM1 format files are (they might have been
upgraded to support XPM3), pbmplus (or netpbm), which is a set of bit‐
map and pixmap conversion freeware (together with xv, the colors for
pixmap objects can be manipulated), and xgrabsc, another freeware;
also, xloadimage can display XPM1 files. Tools that can generate XPM3
format files are, for example, xsnap(1) and sxpm(1). For each color
specified in the color string, a color cell is allocated. If the allo‐
cation fails, the current color will be used for that color string. If
the first color character is a back-quote (`) or a space, then the cor‐
responding color is substituted with the background color of the tgif
window if the Tgif.GuessXPmBgColor X default is set to ``true''. (This
design choice is made because the pixmap will then look ``right'' on
both regular and reverse video.) The following is an example of a very
small pixmap file (in XPM1 format).
#define arrow_format 1
#define arrow_width 5
#define arrow_height 3
#define arrow_ncolors 3
#define arrow_chars_per_pixel 1
static char *arrow_colors[] = {
"`", "Black",
"a", "red",
"b", "yellow"
};
static char *arrow_pixels[] = {
"`a```",
"aabbb",
"`a```"
};
LATEX FIGURE FORMATS
Here we show how to make a figure for a LaTeX file, first with the
\psfig (or \epsf) special construct, then with the psfile special con‐
struct. (The author does not recommend the psfile construct.) An
example of both can be found in ``example.tex'' which is included with
the tgif distribution.
To print a tgif file to be included in a LaTeX document with the \psfig
or \epsf special construct (files generated will be in the Encapsulated
PostScript format), first select LaTeX format in the panel window
(click the left mouse button on the laser printer icon), then type ^p
to generate the Encapsulated PostScript file. If the file name is
``an-sr-flip-flop.obj'', then the LaTeX figure file generated will be
named ``an-sr-flip-flop.eps''. This file can be included in a LaTeX
document as follows,
\input{psfig}
\begin{figure*}[htb]
\centerline{\psfig{figure=an-sr-flip-flop.eps}}
\caption{An SR flip-flop. \label{fig:an-sr-flip-flop}}
\end{figure*}
An alternative way is to use the \epsf construct as follows,
\input{epsf}
\begin{figure*}[htb]
\centerline{\epsffile{an-sr-flip-flop.eps}}
\caption{An SR flip-flop. \label{fig:an-sr-flip-flop}}
\end{figure*}
The \centerline command above centers the picture. If one has multiple
tgif figures in one's LaTeX document, one only have to include the
psfig macro (\input{psfig} or \input{epsf}) once, right after the
\begin{document} statement.
If Encapsulated PostScript is not available, the psfile special con‐
struct can be used as described here. In this case, since LaTeX
doesn't not know where the bounding box of the drawing is, it takes
some practice to get this just right. Here is something that seems to
work. First, center the picture on the page (e.g., the width of a por‐
trait style page is 8.5 inch, so the center of the page is at the 4.25
inch mark), and make the top object in the picture about 1/4 inch away
from the top of the page. Select the LaTeX format in the panel window,
then print in the LaTeX format. As with the psfig construct, a file
with the .eps extension will be generated. This file can be included
in a LaTeX document as follows,
\begin{figure*}[htb]
\special{psfile="an-sr-flip-flop.eps" hoffset=-40}
\rule{0in}{1.1in}
\caption{An SR flip-flop. \label{fig:an-sr-flip-flop}}
\end{figure*}
The \rule{0in}{1.1in} above specifies an invisible box of 1.1 inches
high, which is the total height of the picture in an-sr-flip-flop.
X DEFAULTS
Tgif.Geometry: WIDTHxHEIGHT+X+Y
Tgif.IconGeometry: +X+Y
Tgif.Foreground: COLORSTRING
The default foreground color is Black.
Tgif.Background: COLORSTRING
The default background color is White.
Tgif.BorderColor: COLORSTRING
If not specified, the foreground color will be used.
Tgif.ReverseVideo: [on,off]
For black and white terminal, reverse video ``on'' means the
background is black. For color terminal, reverse video ``on''
means the background is specified by the Tgif.Foreground color.
The default is off.
Tgif.InitialFont: [Times,Courier,Helvetica,NewCentury,Symbol]
This specifies the initial font. The default is Courier.
Tgif.InitialFontStyle: [Roman,Bold,Italic,BoldItalic]
This specifies the initial font style. The default is Roman.
Tgif.InitialFontJust: [Left,Center,Right]
This specifies the initial font justification. The default is
Left.
Tgif.InitialFontDPI: [75,100]
Obsoleted.
Tgif.InitialFontSizeIndex: [0,1,2,3,4,5]
Obsoleted.
Tgif.InitialFontSize: NUMBER
This specifies the size of the start-up font. The default is
17.
Tgif.MsgFontSizeIndex: [0,1,2,3,4,5]
Obsoleted.
Tgif.MsgFontSize: NUMBER
This specifies the size of the font used for messages, menues,
and popup windows. The default is 17.
Tgif.RulerFontSize: NUMBER
This specifies the size of the font used for ruler windows. The
default is 10.
Tgif.DefaultFontSize: NUMBER
This specifies the size of the font to be used when a requested
for a font size can not satisfied. This size must exist for all
fonts used in tgif. The default is 14.
Tgif.FontSizes: NUMBER1 NUMBER2, ...
This specified the font sizes. The default is 8 10 11 12 14 17
18 20 24 25 34.
Tgif.AdditionalFonts: FONT_SPEC1 FONT_SPEC2 ...
In addition to the Times, Courier, Helvetica, NewCentury, and
Symbol fonts, additional fonts can be specified here. Please
see the ADDITIONAL FONTS section for details.
Tgif.FontNamePrefix: [-*, *]
This specified the prefix to be used when tgif makes a request
to the X server. The default is -*. Certain fonts have obscure
font names (e.g., does not start with the - character). In
order to use these fonts, this X default can be set to *.
Tgif.HasAlternateDefaultFonts: [true,false]
The default value of this X default is false. If it set to
``false'', tgif uses the iso8859 registry with ASN1 encoded
screen fonts, and it look for "times", "courier", "helvetica",
"new century schoolbook", and "symbol" as part of the screen
font names. Some X servers do not support these fonts. In this
case, this X default can be used to make tgif use user specified
fonts. (Please note that the PostScript output will not be
affected.) If this X default is set to ``true'', tgif will look
for additional X defaults of the form Tgif.<ps_font_name>, where
<ps_font_name> can be one of the following strings:
Times-Roman
Times-Bold
Times-Italic
Times-BoldItalic
Courier-Roman
Courier-Bold
Courier-Oblique
Courier-BoldOblique
Helvetica-Roman
Helvetica-Bold
Helvetica-Oblique
Helvetica-BoldOblique
NewCenturySchlbk-Roman
NewCenturySchlbk-Bold
NewCenturySchlbk-Italic
NewCenturySchlbk-BoldItalic
Symbol
The corresponding value of the X default must contain "%d" as
part of the string, and the "%d" string will be replaced by the
font size when the font is requested. For example, The follow‐
ing lines will use the Times New Roman screen font instead of
the Times screen font, if Tgif.HasAlternateDefaultFonts is
``true'':
Tgif.Times-Roman: *-times new roman-medium-r-*--%d-*
Tgif.Times-Bold: *-times new roman-bold-r-*--%d-*
Tgif.Times-Italic: *-times new roman-medium-i-*--%d-*
Tgif.Times-BoldItalic: *-times new roman-bold-i-*--%d-*
Please note that certain X servers require the right-hand-side
font specifications to have all the dashes in place.
Tgif.DefaultCursor: [x_cursor,arrow,...]
This specifies the select cursor. Entries in <X11/cursorfont.h>
(without the XC_ prefix) are valid names of the cursor. The
default is arrow.
Tgif.DrawCursor: [x_cursor,arrow,...]
This specifies the cursor used when drawing objects. Entries in
<X11/cursorfont.h> (without the XC_ prefix) are valid names of
the cursor. The default is the same as Tgif.DefaultCursor.
Tgif.DragCursor: [x_cursor,arrow,...]
This specifies the cursor used when dragging. Entries in
<X11/cursorfont.h> (without the XC_ prefix) are valid names of
the cursor. The default is hand2.
Tgif.VertexCursor: [x_cursor,arrow,...]
This specifies the cursor used in the select vertices mode.
Entries in <X11/cursorfont.h> (without the XC_ prefix) are valid
names of the cursor. The default is plus.
Tgif.RubberBandColor: COLORSTRING
This specifies color used for rubber-banding (XORing). The
default color is the same as the foreground color.
Tgif.MaxColors: NUMBER
This specifies the maximum number of colors. Color0 through
ColorMax, where Max is NUMBER-1, in X defaults are queried. If
NUMBER is greater than the default of 11, Color11 through Color‐
Max must all exist in X defaults. Please see the GRAPHICAL
OBJECTS section for a list of the default colors.
Tgif.Color#: COLORSTRING
This specifies the correspondence between a color number and a
color.
Tgif.DefaultColorIndex: NUMBER
This specifies the default color index if a certain color can
not be found. The default is 0.
Tgif.ShortCuts: ITEM1 ITEM2 ...
The ITEM specifies the correspondence between a key (may be case
sensitive) and a non-alphanumeric key command. Please see the
SHORTCUTS section for details.
Tgif.MaxLineWidths: NUMBER
This specifies the maximum number of line widths. LineWidth0
through LineWidthMax, ArrowWidth0 through ArrowWidthMax, and
ArrowHeight0 through ArrowHeightMax, where Max is NUMBER-1, in X
defaults are queried. If NUMBER is greater than the default
value of 7, LineWidth7 through LineWidthMax, ArrowWidth7 through
ArrowWidthMax, and ArrowHeight7 through ArrowHeightMax must all
exist in X defaults. Some default values will be used for those
that are not specified in the X defaults.
Tgif.DefaultLineWidth: NUMBER
This specifies the initial line width index. The default is 0.
Tgif.LineWidth#: NUMBER
This specifies a line width. The default line widths are 1, 2,
3, 4, 5, 6, and 7.
Tgif.ArrowWidth#: NUMBER
This specifies the width (when the arrow is pointing horizon‐
tally) of the arrow head for arc and open-spline objects. The
default arrow widths are 8, 10, 12, 14, 18, 20, and 22.
Tgif.ArrowHeight#: NUMBER
This specifies half the height (when the arrow is also pointing
horizontally) of the arrow head for arc and open-spline objects.
The default arrow heights are 3, 4, 5, 6, 7, 8, and 9.
Tgif.MaxDomains: NUMBER
This specifies the maximum number of domains. DomainPath0
through DomainPathMax, where Max is NUMBER-1, all must exist in
X defaults.
Tgif.DomainPath#: DOMAINSTRING
This specifies the correspondence between a domain number, a
domain name, and the path associated with a domain. DOMAIN‐
STRING contains strings which are separated by the ':' symbol.
The first string is the name of the domain. Each of the rest of
the strings specifies a directory where symbol files are to be
searched when the Instantiate command is executed (please see
the HOW TO MAKE A BUILDING-BLOCK OBJECT section for details).
Another way to look at the DOMAINSTRING specification is that
removing the first string (which specifies the domain name) and
the first ':' symbol, a DOMAINSTRING has the form of the PATH
csh(1) environment variable. For example, to specify the symbol
path for domain DEFAULT to look for symbol files, first in the
library directory /tmp/tgif/symbols, then in the current direc‐
tory, DOMAINSTRING should be set to the following value:
DEFAULT:/tmp/tgif/symbols:.
Tgif.DefaultDomain: NUMBER
This specifies the default domain when tgif starts up. The
default is 0.
Tgif.PrintCommand: COMMAND
This specifies the print command used for printing the Post‐
Script file. The default is lpr(1). An example would be lpr -h
-Pprintername. If COMMAND contains a %s substring, the %s will
be replaced by the full path name of the PostScript file which
is normally send to the print command. Therefore, COMMAND with‐
out a %s substring behaves identically to COMMAND %s. Please
note that this only works when running tgif without the -print
command line option. This can be used to send a font file to
the printer before the tgif PostScript file is sent as in the
following example:
cat /somewhere/sansfex.pfa %s | lpr -Pmyprinter
Tgif.WhereToPrint: [Printer,EPS,PS,Bitmap,Text,EPSI,GIF,HTML]
This specifies the initial print/export destination/format. The
default is EPS.
Tgif.PrintDirectory: PATH
This specifies the print directory when the output destination
is not the printer. The default is a null string, which means
that the output goes into the directory in which the current
file resides.
Tgif.NoTgifIcon: [true,false]
If set to ``true'', tgif will not use its own icon window. In
this case, one should also set Tgif.UseWMIconPixmap described
below to true. The default is false.
Tgif.UseWMIconPixmap: [true,false]
If set to ``true'', tgif will use the standard icon pixmap.
Also, Tgif.NoTgifIcon will be forced to be true. The default is
false.
Tgif.DontShowVersion: [true,false]
If set to ``true'', the tgif version will not be displayed on
top of the tgif window. The default is false.
Tgif.XBmReverseVideo: [true,false]
If set to ``true'', an invert bitmap operation will be performed
when importing an X11 bitmap file. The default is false.
Tgif.AskForXBmSpec: [true,false]
If set to ``true'', the user will be asked to specify magnifica‐
tion and geometry for an X11 bitmap file being imported. Format
of the specification is MAG=WxH+X+Y, where MAG is the magnifica‐
tion, W and H specifies the width and height, and the location
specification can be +X+Y, +X-Y, -X+Y, and -X-Y. The '=' is
mandatory if any of the geometry information is specified. The
default is false.
Tgif.AskForXPmSpec: [true,false]
If set to ``true'', the user will be asked to specify magnifica‐
tion and geometry for an X11 pixmap file being imported. The
format of the specification is the same as for AskForXBmSpec.
The default is false.
Tgif.StripEPSComments: [true,false]
If set to ``true'', lines that start with '%' in an Encapsulated
PostScript file will be stripped when the file is imported
(except the first line of the file). The default is true.
Tgif.GuessXPmBgColor: [true,false]
If set to ``true'', then when tgif imports an X11 pixmap file
with the first color string being ' ' (the space character) or
'`' (the back quote character), it will treat the first color as
a background color. This means that the specified color in the
X11 pixmap file will be changed to the current background color.
The default is false. (Please note that this default was true
before patch 2 of tgif-2.7. This X default is there for compat‐
ibility reasons; it should be considered obsolete.)
Tgif.XPmOutputVersion: NUMBER
This specifies the XPM version number when outputting in the X11
pixmap format. NUMBER can take on values 1 or 3. The default
is 1.
Tgif.XPmInXGrabSCFormat: [true,false]
If Tgif.XpmOutputVersion is set to 1, setting this to ``true''
will force the X11 pixmap output to resemble what xgrabsc gener‐
ates. The default is false.
Tgif.UseGrayScale: [true,false]
If set to ``true'', gray scales will be used for tiling patterns
to speed up printing. The default is false.
Tgif.AutoPanInEditText: [true,false]
If set to ``true'', auto panning will be used such that the text
cursor is always visible in text edit mode (except when the cur‐
sor is to the left or on top of the paper). This should proba‐
bly be turned off on slow servers. The default is true.
Tgif.PercentPrintReduction: NUMBER
The specifies the initial percent print reduction/magnification.
The default is 100.
Tgif.ConstrainedMove: [true,false]
This specifies the initial move mode. When set to ``true'',
moving or stretching an object will cause the endpoints of all
polylines or open-splines, whose endpoints fall within the
object, and may be the neighboring vertices, to be moved.
Please see the IDIOSYNCRASIES section for more details. The
default value is false.
Tgif.DoubleQuoteDoubleQuote: [true,false]
When set to ``true'', output of the double-quote character will
be preceded by a double-quote character; when set to false, out‐
put of the double-quote character will be preceded by a back-
slash character. The default value is false.
Tgif.GridSystem: [English,Metric]
This sets the initial grid system. The default is English.
Tgif.InitialGrid: NUMBER
This specifies the initial grid size. For the English grid sys‐
tem, NUMBER can be -2, -1, 0, +1, or +2 for grid sizes of 1/32,
1/16, 1/8, 1/4, and 1/2 inch. For the Metric grid system, NUM‐
BER can be -1, 0, +1, or +2 for grid sizes of 1mm, 2mm, 5mm, and
1cm. The default value is 0.
Tgif.DropObsIconAttrWhenUpdate: [true,false]
If set to ``true'', obsolete icon attributes will be dropped
without confirmation when the UpdateSymbols command is executed.
If set to ``false'', a popup window will prompt the user to
specify what to do with the obsoleted icon attributes. The
default is false.
Tgif.UseRecentDupDistance: [true,false]
If set to ``true'', the most recent change in position produced
by a combination of a duplicate and a move command will be used
for the new duplicate command. Otherwise, some default distance
will be used to position the duplicate. The default is true.
Tgif.SplineTolerance: NUMBER
This specifies the tolerance of spline drawing. The smaller the
number, the smoother the spline. The default is 9 (min is 3 and
max is 13).
Tgif.SplineRubberband: [true,false]
If set to ``true'', spline rubber-bands will be used in drawing,
moving, and stretching open and closed splines. (This might not
be desirable if the spline contains too many vertices.) The
default is true.
Tgif.Synchronize: [on,off]
XSynchronize is called if this default is set to ``on''. The
default is off.
Tgif.DoubleClickUnIconify: [true,false]
If set to ``true'', double mouse clicks are used to de-iconify
the icon window (in this mode, the icon window ignores single
mouse clicks and drags). The default is false.
Tgif.MainMenuPinDistance: NUMBER
This specifies the horizontal distance (in pixels) the user
needs to drag a popup menu before the popup menu is to be pinned
down. The default is 80. (If pinned popup menus are not
desired, then this should be set to a value greater than the
screen width.) Dragging the left mouse button can be used to
move the pinned popup menu; clicking the right button in the
popup menu will remove it.
Tgif.DoubleClickInterval: NUMBER
This specifies the maximum interval (in milliseconds) between
two mouse clicked to be recognized as one double-click. The
default is 300.
Tgif.HandleSize: NUMBER
This specifies (half) the size of the handle used to highlight
objects. Its allowable value is between 2 and 6. The default
is 3.
Tgif.HistoryDepth: NUMBER
This specifies the size of the undo/redo buffer; negative values
mean that the buffer is unbounded. The default is -1.
Tgif.SaveTmpOnReturn: [true,false]
If set to ``true'', a tmpmodel file will be saved automatically
before returning to the driver. Otherwise, no files will be
saved automatically. The default is true.
Tgif.ImportFromLibrary: [true,false]
If set to ``true'', the library directories specified by the
current domain are searched for .obj, .sym, xbitmap/xpixmap, and
EPS files to import. Otherwise, the current directory will be
used as the starting point. The default is false.
Tgif.WarpToWinCenter: [true,false]
If set to ``true'', the mouse is warped to the center of popup
windows. Otherwise, the mouse is not warped. The default is
true.
Tgif.SaveCommentsInSaveNew: [true,false]
If set to ``true'', "%%" type comments in the file will be
stored in the newly created file. The default is true.
Tgif.CanvasWindowOnly: [true,false]
If set to ``true'', only the canvas window will be displayed
(this is kind of the ``demo'' mode). The default is false.
Tgif.UsePsAdobeString: [true,false,NUMBER_1/NUMBER_2]
If set to ``true'', the first line in the PS or EPS file will be
"%!PS-Adobe-2.0 EPSF-1.2". If set to ``false'', it is just
"%!". If the third form is used,, the first line will be "%!PS-
Adobe-NUMBER_1 EPSF-NUMBER_2". The default is false. The PS-
Adobe string might confuse Transcript, but it is needed to work
with groff.
Tgif.HalfToneBitmap: [true,false]
If set to ``true'', the Floyd-Steinberg half-tone method will be
used when printing in the X11 bitmap format. This is useful
when the drawing contains X11 pixmap objects. The default is
false.
Tgif.ThresholdBitmap: [true,false]
If set to ``true'', a simple thresholding method will be used to
decide whether a bit is turned on or off when printing in the
X11 bitmap format. If Tgif.HalfToneBitmap is set to true, this
X default is ignored. The default is false.
Tgif.BitmapThreshold: NUMBER
This specifies the threshold value used in either the Floyd-
Steinberg half-tone algorithm or the simple thresholding algo‐
rithm. NUMBER must be between 0 and 1. This X default is only
active when either the Tgif.HalfToneBitmap or the Tgif.Thresh‐
oldBitmap X default is set to true. The default value is 0.5 if
Tgif.HalfToneBitmap is true, and is 1.0 if Tgif.ThresholdBitmap
is true (basically, anything that is not white will be black).
Tgif.GroupedTextEditable: [true,false]
If set to ``false'', only top level text objects and attributes
of top level objects can be edited when the drawing mode is set
to the text mode. If set to ``true'', text objects and
attributes everywhere can be edited. The default is false.
Tgif.DefaultEPSScaling: NUMBER
This specifies the scaling factor applied to an imported PS or
EPS image. As mentioned in the IDIOSYNCRASIES section below,
tgif treats 128 pixels as an inch and PostScript treats 72
points as an inch. In order to have real-size PostScript
images, this parameter should be set to 1.7778 (which is
128/72). The default value is 1.
Tgif.IntrCheckInterval: NUMBER
This specifies the number of objects drawn before tgif checks
for interrupts. If this is set to be 0 or less, interrupt is
not allowed. The default value is 10.
Tgif.TiledPageScaling: NUMBER
This specifies the scaling value used when a multipage drawing
in tiled page mode is printed. Since most PostScript printers
do not use the full page as the drawing area, setting this num‐
ber to 1 may get truncated output. The default value is 0.9.
Tgif.TGIFPATH: STRING
This specifies the directory where the files, mentioned in the
FILES section below, can be found. The TGIFPATH environment
variable may override this option. The default value is speci‐
fied by the compiler option TGIF_PATH.
Tgif.TGIFICON: STRING
This specifies the name of the object file to be displayed when
tgif is iconified. If it starts with a / character, absolute
path is used; otherwise, the actual path of the icon file is
$TGIFPATH/STRING where TGIFPATH is either defined using the X
defaults or an environment variable. The default value is
``tgificon.obj''.
Tgif.StickyMenuSelection: [true,false]
If set to ``true'', when patterns/linewidths/linestyles/... of
objects are changed using a menu action, the corresponding pat‐
tern/linewidth/linestyle/... becomes the current selection. The
default is false.
Tgif.PSBopHook: STRING
If specified, the following PostScript line is added at the
beginning of each page when printing to the printer or to a PS
file,
userdict /STRING known { STRING } if
This option should only be used if one is very familiar with
PostScript. (Setting STRING to "tgif-bop-hook" is recommanded
since it would not have a name conflict with existing software,
such as dvips(1).)
Tgif.PSEopHook: STRING
If specified, the following PostScript line is added at the end
of each page when printing to the printer or to a PS file,
userdict /STRING known { STRING } if
This option should only be used if one is very familiar with
PostScript. (Setting STRING to "tgif-eop-hook" is recommanded
since it would not have a name conflict with existing software,
such as dvips(1).)
Tgif.MinimalEPS: [true,false]
If set to ``false'', comments such as %%Pages, %%DocumentFonts,
%%EndComments, %%BeginProlog, %%EndProlog, %%Page, %%Trailer,
and %%EOF will be generated in an EPS output. These comments
may confuse certain ``document managers''. Therefore, the
default is true.
Tgif.InitialPrintInColor: [true,false]
If set to ``true'', color output (printing) mode is enabled on
startup. The default is false.
Tgif.InitialShowGrid: [true,false]
If set to ``false'', showing grid is disabled on startup. The
default is true.
Tgif.InitialSnapOn: [true,false]
If set to ``false'', snapping to the grid points is disabled on
startup. The default is true.
Tgif.NoMenubar: [true,false]
If set to ``true'', no menubar will be shown initially. The
default is false.
Tgif.NoStatusWindow: [true,false]
If set to ``true'', no Status Window will be shown initially.
The default is false.
Tgif.ReverseMouseStatusButtons: [true,false]
If set to ``true'', the left mouse status and the right mouse
status are swapped. This should be used when a ``left-handed
mouse'' is used. The default is false.
Tgif.MinimalMenubar: [true,false]
If set to ``false'', the menu items in the Menubar Window will
be the same as the main popup menu. This would take up much
more space. If set to ``true'', the Page, PageLayout, Hori‐
Align, VertAlign, and MoveMode menus are collapsed into the View
cascading menu; the Font, TextStyle, and TextSize menus are col‐
lapsed into the Text cascading menu; and the LineDash,
LineStyle, LineType, LineWidth, Fill, and Pen menus are col‐
lapsed into the Graphics cascading menu. The default is true.
Tgif.ColorBgInPrintingColorPS: [true,false]
If set to ``true'', the window background color is used as the
background color when generating color PostScript output. If
set to ``false'', no background color is used. The default is
false.
Tgif.ScrollBarWidth: NUMBER
This specifies the width of a scroll bar. NUMBER must be
between 2 and 16. The default is 16.
Tgif.InitialPaperSize: STRING
The STRING specifies the initial width and height of the paper.
STRING is in the "<width> x <height>" form. <width> and
<height> is a numeric value immediately followed by either "in"
(inch) or "cm" (centi-meter). The " x " that separate the
<width> and <height> is mandatory. If A4PAPER is defined in the
Makefile, the default value is "21cm x 29.7cm". If A4PAPER is
not defined in the Makefile, the default value is "8.5in x
11in".
Tgif.UpdateChildUsingAlignment: [true,false,no_overlap]
If set to ``true'' or 'no_overlap', when update_eps_child(),
update_xbm_child(), or update_xpm_child() internal command is
executed, the current horizontal and vertical alignments are
used to place the EPS/XBM/XPM subobject. If the horizontal
alignment is L, C, R, S, or -, the subobject is aligned to the
left, center, right, center, or left, respectively, to the par‐
ent object. If the vertical alignment is T, M, B, S, or -, the
subobject is placed above, middle, below, middle, or below the
parent object if this X default is set to 'no_overlap'; the sub‐
object is aligned to the top, middle, bottom, middle, or below
the parent object if this X default is set to ``true''. If this
X default is set to ``false'', the subobject is placed left
aligned and below the parent object. The default is false.
Tgif.GenerateImageMap: [true,false]
If set to ``true'', NCSA imagemap or CERN Clickable Image files
will be generated when print in GIF format. In this case,
Tgif.XpmToGif, Tgif.ImageMapFileExtension, Tgif.GifFileExten‐
sion, Tgif.ImageMapFileFormat, and Tgif.UseXPmVersion1ForIm‐
ageMap X defaults, described below, will be interpreted; other‐
wise, they are ignored. Please see the section on GENERATING
IMAGEMAP FILES for details. The default is false.
Tgif.XpmToGif: STRING
The STRING specifies a command used to convert an XPM file to a
GIF file. The STRING must contain a %s substring to be replaced
by the full path name of the XPM file. The default is "xpmtoppm
%s | ppmtogif".
Tgif.ImageMapFileExtension: STRING
The STRING specifies the file extension for a imagemap file.
The default is "map".
Tgif.GifFileExtension: STRING
The STRING specifies the file extension for a gif file. The
default is "gif" (lower case).
Tgif.ImageMapFileFormat: [NCSA,CERN]
The STRING specifies either the NCSA imagemap or the CERN click‐
able image format. The default is NCSA for the NCSA imagemap
format.
Tgif.UseXPmVersion1ForImageMap: [true,false]
The setting of this X default should depend on the setting of
the Tgif.XpmToGif X default above. If set to ``true'', XPM1
file is generated disregarding the setting of the Tgif.XPmOut‐
putVersion X default. The default is true.
Tgif.UsePaperSizeStoredInFile: [true,false]
If set to ``true'', the paper size information stored in a just
opened file is used. The default is false.
Tgif.OneMotionSelMove: [true,false]
If set to ``true'', one can select and move an object in one
motion. The default is false.
Tgif.TiffEPSI: [true,false]
If set to ``true'', a TIFF image will be appended to a generated
EPSI file. Please see the GENERATING MICROSOFT WINDOWS EPSI
FILES section for details. The default is false.
Tgif.XbmToTiff: STRING
The STRING specifies a command used to convert an XBM file to a
TIFF file. The STRING must contain either one of two %s sub‐
string. The first %s substring is to be replaced by the full
path name of the XBM file. The optional second %s substring is
to be replaced by the full path name of the generated TIFF
image. The default is "xbmtopbm %s | pnmtotiff -none > %s".
Tgif.EPSIExportExtension: STRING
STRING specifies the file extension used for exporting EPSI
files. The default is "eps".
Tgif.HotListFileName: STRING
STRING specifies a full path name of a file used to store the
hot file list. By default, this file is .Tgif_hotlist in the
user's home directory.
Tgif.@@@Viewer: STRING
STRING specifies an external viewer for an remote URL with a
file extension of @@@. STRING can be in 3 forms. It can be the
string "NONE" to indicate that when such a remote file is
encountered, tgif should retrieve the file into a user specified
directory. For example, if one wishes to retrieve .gz files,
one can use:
Tgif.gzViewer: NONE
STRING can also contain the string %S (S is capitalized), this
indicates that %S is to be replaced by the URL. For example, if
one wishes to view .html files using xmosaic, one can use:
Tgif.htmlViewer: xmosaic %S
Another form of STRING contains the string %s (S is lower-case),
this indicates that the remote file is to be retrieved into a
user specified directory and view by a tool. For example, if
one wishes to view .gif files using xv, one can use:
Tgif.gifViewer: xv %s
Please note that this mechanism has precedence over the mecha‐
nism described in the MIME TYPES AND MAILCAPS section above.
Tgif.AutoHyperSpaceOnRemote: [true,false]
If set to ``false'', tgif will not go into the hyperspace mode
when a remote URL is visited. The default is true.
Tgif.AllowLaunchInHyperSpace: [true,false]
If set to ``true'', launching of applications is enabled in the
hyperspace mode when a remote URL is visited. This is poten‐
tially very dangerous because the application may do catastroph‐
ic damages. Therefore, it is strongly recommanded that it is
set to false. The default is false.
Tgif.CanChangeAttrColor: [true,false]
If set to ``true'', color of an attribute can be changed when it
is attached to an object. The default is false.
Tgif.MimeTypesFile: STRING
STRING specifies a full path name of the MIME-types file. Tgif
only uses the type/subtype field in the MIME-types file and
ignores all other fields. The default MIME-types file is
.mime.types in user's home directory.
Tgif.LocalRGBTxt: STRING
If one would like to override certain system colors, one can use
STRING to specify a full path name of a file to be consulted
first before looking up the color in the server. The file must
be in the same format as the rgb.txt file. Namely, each line
contains 4 fields, the first 3 fields correspond to the red,
green, and blue components of the color, and the 4th field is
the name of the color. A color component must have a value
between 0 and 255 (inclusive).
Tgif.PrintUsingRequestedColor: [true,false]
If set to ``true'', the color PostScript file being printed will
use the requested color instead of the color returned by the X
server. The default is false.
Tgif.ShowMeasurement: [true,false]
If set to ``true'', the location of the cursor and the width and
height of the object begin drawn/dragged/stretched will be
shown. The default is false.
Tgif.ShowMeasurementUnit: [pixel,inch,cm]
The STRING specifies the unit used to display the measurement
cursor. The default is pixel.
Tgif.PageStyleLandscape: [true,false]
If set to ``true'', tgif comes up in landscape mode. The
default is false.
Tgif.QueryZoomInPoint: [true,false] or
[always,no_select,no_query,never]
If set to ``true'' (or ``always''), the user will be asked to
select a center point when zooming in. If set to ``no_select'',
the user will be asked to select a center point when zooming in
if no objects are selected. If set to ``no_query'', the posi‐
tion of the mouse is the zoom-in point. In this case, it is not
desirable to zooms in using a menu selection. The default is
false (or never).
Tgif.GUnZipCmd: STRING
The STRING specifies a command used to unzip a zipped remote
tgif file (with extension .obj.gz or .sym.gz) into a tgif file.
The command must produce output into its stdout. If the command
contains a %s substring, the %s will be replace by the full path
name of a temporary copy of the zipped file. The default is
"gunzip -c".
Tgif.HttpProxy: STRING
The STRING specifies a host name and a port number of an HTTP
proxy server. Format of the specification is <host>:<port>. If
:<port> is omitted, 80 is used as the default port number. The
environment variable http_proxy has precedence over this X
default. The default is not to use an HTTP proxy server.
Tgif.FtpProxy: STRING
The STRING specifies a host name and a port number of an FTP
proxy server. Format of the specification is <host>:<port>. If
:<port> is omitted, 21 is used as the default port number. The
environment variable ftp_proxy has precedence over this X
default. The default is not to use an FTP proxy server.
Tgif.InitialArrowStyle: [NONE,RIGHT,LEFT,DOUBLE]
This specifies the initial arrow style for polyline/open-
splines/arcs. The default is RIGHT.
Tgif.ShowPageInEPS: [true,false]
If set to ``true'', a showpage PostScript command will be gener‐
ated for an EPS or EPSI file. The default is false.
Tgif.MaxNavigateCacheBuffers: NUMBER
This specifies the number of cache buffers allocated to cache
remote files (to minimize communication). NUMBER must be non-
negative. The default is 40.
Tgif.NumberFileInPrintOnePage: [true,false]
If set to ``true'', when PrintOnePage from the Print Menu is
selected for a stacked multipage drawing (e.g., file.obj),
file_N with the proper file extension will be generated, where N
corresponds to the selected page number. The default is false.
Tgif.OneMotionTimeout: NUMBER
When Tgif.OneMotionSelMove is set to true, moving an object is
considered to be making a selection if the elapse time between
mouse-down and mouse-up is smaller than the timeout value speci‐
fied by this X default (in milliseconds). The default is 200.
Tgif.MinMoveInterval: NUMBER
When Tgif.OneMotionSelMove is set to false, moving an object is
considered to be making a selection if the elapse time between
mouse-down and mouse-up is smaller than the interval specified
by this X default (in milliseconds). The default is 0.
Tgif.GifToXpm: STRING
The STRING specifies a command used to convert a GIF file to an
XPM file. The STRING must contain a %s substring to be replaced
by the full path name of the GIF file. The default is "giftopnm
%s | ppmtoxpm".
Tgif.InitExportPixelTrim: LEFT_NUMBER,TOP_NUMBER,RIGHT_NUMBER,BOT‐
TOM_NUMBER
The numbers specify the number of pixels to trim when printing
or exporting in the XBM, XPM, or GIF format. The use of these
values forms an escape mechanism to fix an idiosyncrasy that
tgif can not figure out exactly how big the whole image is. The
default values are all 0's.
Tgif.QuantizingLevels: NUMBER
Some image functions such as Sharpen() uses convolution and may
generate an image that uses more than 256 colors which tgif can
not handle. The NUMBER specifies the number of colors to quan‐
tize down to when such a situation occurs. The default is 222.
Tgif.RotateCursor: [x_cursor,arrow,...]
This specifies the cursor used in the rotate mode. Entries in
<X11/cursorfont.h> (without the XC_ prefix) are valid names of
the cursor. The default is crosshair.
Tgif.ColorLayers: [true,false]
If set to ``true'', each color is considered to be a different
layer which can be individually turned on and off. If a color
layer is turned off, primitive objects in that layer will not be
visible. A grouped object only becomes invisible when all its
constituent objects are invisible. The default is false.
Tgif.TiffToXbmCmd: STRING
The STRING specifies a command used to convert a TIFF file to an
XBM file. This command is used when importing an EPSI file gen‐
erated by a Windows application. The STRING must contain a %s
substring to be replaced by the full path name of the TIFF file.
The default is "tifftopnm %s | pgmtopbm | pbmtoxbm"
Tgif.DefFixedWidthFont: STRING
The STRING specifies a font to be used as the default font for
the Status Window, menus, dialogboxes, etc. The default is
"-*-courier-medium-r-normal-*-17-*-*-*-*-*-iso8859-1".
Tgif.DefFixedWidthRulerFont: STRING
The STRING specifies a font to be used in the horizontal and
vertical ruler windows. The default is "-*-courier-medium-r-
normal-*-10-*-*-*-*-*-iso8859-1".
Tgif.MenuFont: STRING
This is not implemented, yet.
Tgif.BoldMsgFont: STRING
The STRING specifies a bold font to be used in buttons and
dialogboxes. If this resource is not specified, the default
font is used.
Tgif.MsgFont: STRING
The STRING specifies a thin font to be used in the Status Window
and dialogboxes. If this resource is not specified, the default
font is used.
Tgif.BggenToXpm: STRING
The STRING specifies a command for generating an X11 pixmap file
to be executed when RunBggen() is selected from the ImageProc
Menu. The STRING must contain two %s substrings. The first %s
is to be replaced by a user specified string. The second %s is
to be replaced by the geometry of the image. The default is
"bggen %s -g %s | ppmquant 64 | ppmtoxpm".
Tgif.DefaultErrorDiffuseLevels: R_NUMBER G_NUMBER B_NUMBER
The NUMBERs specify the number of bits of red, green, and blue
to be used when ReduceToDefaultColors() or DefaultErrorDiffuse()
are selected from the ImageProc Menu. These values determine a
set of default colors to be used for color quantization for the
ReduceToDefaultColors() and DefaultErrorDiffuse() methods.
R_NUMBER+G_NUMBER+B_NUMBER must be less than or equal to 8, and
each number must be greater than 0. The default is 2 2 2.
Tgif.MaxImportFilters: NUMBER
This specifies the maximum number of import filters. ImportFil‐
ter0 through ImportFilterMax, where Max is NUMBER-1, in X
defaults are queried. The default is 0.
Tgif.ImportFilter#: FILTERSTRING
This specifies an import filter. FILTERSTRING has 3 parts (sep‐
arated by space characters). The first part is the name of the
filter. It must not contain a space character. The second part
contains semicolon-separated file extensions. The third part is
the actual filter command for converting the named external file
type to an X11 pixmap file. Please see the IMPORT RASTER GRAPH‐
ICS section for details.
Tgif.ShowFileNameOnBrowse: [true,false]
If set to ``true'', file names will be shown when Brow‐
seXBitmap(), BrowseXPixmap(), or BrowseOther() are selected from
the File Menu. The default is true.
Tgif.HtmlFileExtension: STRING
The STRING specifies the file extension used when printing in
the HTML format. The default is "html".
Tgif.GenerateHtmlHref: [true,false]
If set to ``true'' and when printing in the HTML format, the
value of an href attribute is parsed. If the value references a
.obj file, it's changed to have a HTML file extension. If it is
set to ``false'', no conversion will be performed. The default
is true.
Tgif.RotationIncrement: NUMBER
This specifies the initial rotation increment in degrees. The
default is 45.
Tgif.PSA4PaperSize: [true,false]
If set to ``true'' and A4 size paper is specified, the following
line is added to a PS/EPS/EPSI file (before "%%EndComments"):
%%DocumentPaperSizes: a4
The default is false.
Tgif.ShapeShadowSpec: STRING
The STRING specifies the initial horizontal and vertical offsets
of a shape shadow. If both values are zeroes, a shape is cre‐
ated without a shadow. When creating a shape with a shadow,
background fill pattern (3rd pattern in the first column of the
Fill Menu) usually gives the best result. The default is "0,0".
Tgif.StretchableText: [true,false]
If set to ``true'', stretchable text mode is the initial mode.
The default is false.
Tgif.EditTextSize: NUMBER
This specifies the initial text size to be used in editing
existing text objects. NUMBER should either be 0 or a value
between 4 and 34 (inclusive). If NUMBER is 0, the actual text
size is used in editing existing text objects. The default is
0.
Tgif.IconPixmap: STRING
STRING specifies the path of an XBM or XPM file to be used as
tgif's desktop icon. If STRING starts with a / character, abso‐
lute path is used; otherwise, the actual path of the icon file
is $TGIFPATH/STRING where TGIFPATH is either defined using the X
defaults or an environment variable. This X default is only
enabled if Tgif.UseWMIcon is set to true. The default value is
``tgificon.xbm'' (which is compiled into tgif).
Tgif.TmpFileMode: NUMBER (OCTAL)
This specifies file mode for temporary and exported files. NUM‐
BER must be an octal number. If NUMBER is 0, no attempt is made
to change the file mode. If this value is specified (even if
it's 0), it overrides the PSFILE_MOD compile option. There is
no default value.
Tgif.TitledPinnedMenu: [true,false]
If set to ``true'', pinned menu will have a title bar and left
button is used for selecting menu items in a pinned menu. The
default is false.
Tgif.ColorFromXPixmap: STRING
STRING specifies the path of an XPM file to be used to load the
initial colors. If this X default is specified, the Tgif.Color#
X defaults are ignored.
Tgif.VectorWarpSoftness: NUMBER
This specifies the softness value used when VectorWarp() is
selected from the ImageProc Menu. VectorWarp() lets the user
warp pixels in an X11 pixmap object by specifying a vector. The
size of the affected area is controled by this value, which must
lie between 1.0 and 4.0. The larger the value, the larger the
affected area. The default value is 1.5.
ENVIRONMENT VARIABLE
TGIFPATH
This environment variable should be set such that the files,
mentioned in the FILES section below, can be found.
TGIFICON
This environment variable should be set to the name of the
object file to be displayed when tgif is iconified. By default,
it is set to ``tgificon''. If it starts with a / character,
absolute path is used; otherwise, the icon file is assumed to be
$TGIFPATH/$TGIFICON.
TGIF_[Domain]
Obsoleted.
FILES
$TGIFPATH/tgificon.obj contains the default tgif icon.
$TGIFPATH/keys.obj contains a summary of the non-alphanumeric key bind‐
ings.
PROLOG/C TESTDRIVE
In the tgif distribution, there are three Prolog files which illustrate
a simple Prolog driver. tgif.pl contains predicates for parsing tgif
files (both .obj and .sym). frontend.pl contains predicates for talk‐
ing to Prolog engines, such as that of Quintus and SISCtus, through the
foreign function interface. To use frontend.pl, frontend11.o needs to
be built (which requires the frontend11.o entry to be uncommented from
the makefiles). Finally, testdrive.pl contains a program which will
print out the ID files of all objects in the current drawing, if tgif
is escaped with the Solve() (or #s) command. This is also a good way
of finding out the structure of a tgif file (especially because the
structure is not documented due to the complexity introduced to keep
tgif compatible with files created by older versions).
A very simple C driver, testdrive.c, is also provided with the tgif
distribution which perform the same function as the Prolog driver. The
extra code present in this file (and not present in tgif.c) is used to
illustrate how the in-memory objects and attributes can be traversed.
SEE ALSOlatex(1L), lpr(1), env(1), X(1), dvips(1), csh(1), pbmplus(1),
netpbm(1), djpeg(1), bitmap(1), XPM(1), xfontsel(1), xlsfonts(1),
xgrabsc(1), xloadimage(1), xsnap(1), sxpm(1), xv(1), pstoepsi(1),
Mosaic(1), bggen(1), rand(3C)IDIOSYNCRASIES
When any of the ``escape to driver'' commands are (accidentally) exe‐
cuted, the current content of the drawing is saved into ``tmp‐
model.obj'' if the drawing indicates that it is a .obj file; then tgif
escapes to the driver and returns right away. If the drawing indicates
that it is a .sym file, then the content is saved into ``tmp‐
model.sym'', but tgif does not return to the driver.
The paste operation works on a cut buffer generated by tgif or by non-
tgif tools (such as xterm). If the cut buffer is not generated by
tgif, its content is treated as a collection of ASCII character
strings, which is inserted into the current drawing as a text object
(current settings for text objects are used to create the text object).
If the cut buffer is generated by tgif, then all the current settings
are ignored.
The font sizes are the screen font sizes (which correspond to the X
fonts that are used to draw the text on the screen). They appear
smaller on the printout. When a 24 point text is printed, it would
correspond to about a 13.5 point PostScript text. This is because tgif
treats 128 pixels as an inch, and PostScript treats 72 points as an
inch.
Because characters supported by X11 and PostScript are different, not
all the characters, especially in the range 128 to 255 (or \200 to
\377), which are supported by X11, but are not accepted by tgif. Fur‐
thermore, in order to print the supported subset or these characters,
character codes must be re-encoded. Therefore, if one would like to
hack tgif to support other personalized fonts, one should be careful
about the re-encoding mechanism.
The grids are not absolute; they are specified as screen pixels, and
they scale with the current zoom. For example, if the grid is set at
16 pixels at maximum zoom, and if the user zooms out once, objects can
be drawn, moved, or stretched at 16 screen pixel increments, but this
corresponds to 32 pixels in the real coordinate system.
If the vertical text spacing is set to negative values, highlighted
text will look a little strange due to XOR operations. If the vertical
text spacing is set to be greater than 100 or less than -100, the panel
window will not be cleared properly; to clear the panel window, the
user may have to close the tgif window and then open it again.
As described in the TGIF SUBWINDOWS section, in constrained move mode,
if both endpoints of a not-selected polyline lie inside the object
being moved, then the whole polyline is moved. This may look strange
sometimes because, for example, if one starts with a line segment
pointing to an object, just moving the object will caused the line seg‐
ment to be ``stretched''; however, if one eventually moves the object
so that the other endpoint is also inside the object, any future move‐
ment of the object will cause the whole line segment to move (instead
of just moving the original endpoint). The moving of the vertex which
is the neighbor of a moved endpoint may also look strange at times. At
this point, one should switch to the unconstrained move mode.
Another idiosyncrasy with respect to the constrained move is that right
after duplicating an object, the constrained move is disabled temporar‐
ily because it is assumed that at this point the user would want to
move the new object to a desirable position, and only after this new
object is ``settled down'', the constrained move will be re-enabled.
Settling down is signified by doing something other than moving the new
object.
Locked objects can be deleted.
Under the Edit Menu, PasteFromFile() reads a file into the drawing.
Pasting from a file is different from the normal pasting operation
where copying is performed in something like xterm because tabs are
automatically converted to spaces. Tabs are ignored when pasting from
a file.
When printing a multipage drawing, all pages (even the ones that con‐
tains no objects) will be printed. Using the PrintOnePage() command
under the Page Menu one can print the selected page (in stacked page
layout mode, this is the current page; in tiled page layout mode, the
user is prompted to select a visible page).
Since tgif is using its own icon window, it may confuse certain window
managers. If the effect is undesirable, one can set both the Tgif.NoT‐
gifIcon and the Tgif.UseWMIconPixmap X defaults to true.
BUGS
There seems to be a problem with printing Courier fonts with a non-
solid pen on the Apple LaserWriter. (Printing single character does
seem to work fine.) As pointed out by the PostScript reference manual,
Courier is a ``stroked font'', and it is usually ``difficult'' to con‐
struct character paths for such types of fonts. However, Courier fonts
work fine with ghostscript and dxpsview. It's not clear how this prob‐
lem can be fixed. The author recommends avoiding Courier fonts when
printing in color if a non-solid pen is desired.
Arcs with arrow tips don't look very sharp (the tip is not pointed as
in open-splines with arrow tips).
At high magnifications, stretching arcs may cause anomalous behavior
due to round off errors.
When page reduction/magnification is not set at 100%, the markings in
the Ruler Windows do not correspond to real measurements. behavior due
to round off errors.
Copying/pasting large objects might not work because tgif does not use
the ``selection'' mechanism (yet).
If and when tgif crashes, it will try to save the current content of
the drawing in a file called ``EmergencySave.obj'' (or ``Emergen‐
cySave.sym'' if the current drawing specifies a symbol object). Often,
the drawing can be restored by loading the ``EmergencySave.obj'' file.
Nevertheless, if the cause of the crash is that some objects are cor‐
rupted (due to programming bugs), then the ``EmergencySave.obj'' file
may also be corrupted.
When launching an application, if the command does not end with the '&'
character and the command does not terminate, tgif also hangs. In this
case, kill(1) should be used to send HUP signal to the tgif process if
one wants to save the content of tgif in ``EmergencySave.obj''.
The file exec.c may not compile properly on AIX machines. One might
have to add -D_BSD to the DEFINES in either the Imakefile or Make‐
file.noimake.
COPYRIGHT
Please see the ``Copyright'' file for details on the copyrights.
PostScript is a trademark of Adobe Systems Incorporated.
STATUS
The current status of tgif can be obtained from tgif's World-Wide-Web
home page at <URL:http://bourbon.cs.ucla.edu:8001/tgif/>.
AUTHOR
William Chia-Wei Cheng (william@cs.UCLA.edu)
<URL:http://bourbon.cs.ucla.edu:8001/william/>
REFERENCES
[1] ``A Beginner's Guild to HTML'',
<URL:http://www.ncsa.uiuc.edu/General/Internet/WWW/HTML‐
Primer.html>.
[2] ``The Common Gateway Interface'',
<URL:http://hoohoo.ncsa.uiuc.edu/cgi/overview.html>.
[3] ``NCSA Imagemap'', <URL:http://hoohoo.ncsa.uiuc.edu/docs/set‐
up/admin/Imagemap.html>.
[4] ``CERN Clickable Image'', <URL:http://www.w3.org/hyper‐
text/WWW/Daemon/User/CGI/HTImageDoc.html>.
Tgif Version 3.0 Patchlevel 16 and Above TGIF(n)
