iwidgets::messagebox(1) [incr Widgets] iwidgets::messagebox(1)______________________________________________________________________________NAME
iwidgets::messagebox - Create and manipulate a messagebox text widget
SYNOPSIS
iwidgets::messagebox pathName ?options?
INHERITANCE
itk::Widget <- iwidgets::Labeledwidget <- iwidgets::Scrolledwidget <-
iwidgets::Messagebox
STANDARD OPTIONS
activeBackground activeForeground background borderWidth
cursor exportSelection font foreground
highlightColor highlightThickness padX padY
relief setGrid
See the "options" manual entry for details on the standard options.
ASSOCIATED OPTIONS
labelBitmap labelFont labelImage labelMargin
labelPos labelText labelVariable
See the "labeledwidget" class manual entry for details on the above
associated options.
activeRelief elementBorderWidth jumptroughColor
See the "scrollbar" widget manual entry for details on the above asso‐
ciated options.
height hscrollMode sbWidth scrollMargin
textBackground visibleItems vscrollMode width
See the "scrolledtext" widget manual entry for details on the above
associated options.
spacing1 spacing2 spacing3
See the "text" widget manual entry for details on the above associated
options.
WIDGET-SPECIFIC OPTIONS
Name: fileName
Class: FileName
Command-Line Switch: -filename
Specifies the filename to be displayed in the file selection
dialog when it pops up during a save of the messagebox contents
operation.
Name: maxLines
Class: MaxLines
Command-Line Switch: -maxlines
Specifies the maximum number of lines allowed in the text area
of the messagebox. When this limit is reached, the oldest line
will be deleted such that the total number of lines remains max‐
lines.
Name: saveDir
Class: SaveDir
Command-Line Switch: -savedir
Specifies the default directory to display when the file selec‐
tion dialog pops up during a save of the messagebox contents
operation. If this parameter is not specified, then the files in
the current working directory are displayed.
______________________________________________________________________________DESCRIPTION
The iwidgets::messagebox command creates a scrolled information mes‐
sages area widget. Message types can be user defined and configured.
Their options include foreground, background, font, bell, and their
display mode of on or off. This allows message types to defined as
needed, removed when no longer so, and modified when necessary. An
export method is provided for file I/O.
The number of lines displayed may be limited with the default being
1000. When this limit is reached, the oldest line is removed. A popup
menu which appears when the right mouse button has been pressed in the
message area has been predefined. The contents of the popup menu by
default support clearing the area and saving its contents to a file.
Additional operations may be defined or existing operations removed by
using the component command to access the popup menu.
MESSAGE TYPES
The display characteristics of messages issued to the messagebox vary
with the message type. Types are defined by the user and they may be
added, removed, and configured. The options of the message type con‐
trol the display include the following:
-background color
Color specifies the background color to use for characters asso‐
ciated with the message type. It may have any of the forms
accepted by Tk_GetColor.
-bell boolean
Specifies whether or not to ring the bell whenenver a message of
this type is issued. Boolean may have any of the forms accepted
by Tk_GetBoolean. The default is 0.
-font fontName
FontName is the name of a font to use for drawing characters.
It may have any of the forms accepted by Tk_GetFontStruct.
-foreground color
Color specifies the foreground color to use for characters asso‐
ciated with the message type. It may have any of the forms
accepted by Tk_GetColor.
-show boolean
Specifies whether of not to display this message type when
issued. Boolean may have any of the forms accepted by Tk_Get‐
Boolean. The default is 1.
METHODS
The iwidgets::messagebox command creates a new Tcl command whose name
is pathName. This command may be used to invoke various operations on
the widget. It has the following general form: pathName option ?arg
arg ...? Option and the args determine the exact behavior of the com‐
mand. The following commands are possible for messagebox widgets:
WIDGET-SPECIFIC METHODS
pathName cget option
Returns the current value of the configuration option given by
option. Option may have any of the values accepted by the iwid‐
gets::messagebox command.
pathName clear
Clear the messagebox of all messages.
pathName export filename
Write text to a file. If filename exists then contents are
replaced with text widget contents.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If no
option is specified, returns a list describing all of the avail‐
able options for pathName (see Tk_ConfigureInfo for information
on the format of this list). If option is specified with no
value, then the command returns a list describing the one named
option (this list will be identical to the corresponding sublist
of the value returned if no option is specified). If one or
more option-value pairs are specified, then the command modifies
the given widget option(s) to have the given value(s); in this
case the command returns an empty string. Option may have any
of the values accepted by the iwidgets::messagebox command.
pathName type option msgtype ?arg arg ...?
This command is used to manipulate message types. The behav‐
ior of the command depends on the option argument that follows
the type keyword. The following forms of the command are sup‐
ported:
pathName type add msgtype ?option value ...?
Adds a new message type given by msgtype
with the display properties defined by the
option value pairs. See MESSAGE TYPES for
information on the options that are sup‐
ported.
pathName type cget msgtype option
Returns the value of a configuration option
for a message type. Msgtype identifies the
message type, and option specifies a par‐
ticular configuration option, which must be
one of the ones listed in the section MES‐
SAGE TYPES.
pathName type configure msgtype ?option value ...?
Query or modify the configuration options
for a message type. If no option is speci‐
fied, returns a list describing all of the
available options for the message type msg‐
type. If option is specified with no
value, then the command returns a list
describing the one named option. If one or
more option-value pairs are specified, then
the command modifies the given option(s) to
have the given value(s); in this case the
command returns an empty string. See MES‐
SAGE TYPES for information on the options
that are supported. pathName type remove
msgtype Removes an existing message type
given by msgtype.
pathName issue string ?level? ?tags?
Print a string to the text area at the given level
and with any additional tags specified.
COMPONENTS
Name: itemMenu
Class: Menu
This is the popup menu that gets displayed when
you right-click in the text area of the message‐
box. Its contents may be modified via the compo‐
nent command.
Name: text
Class: Scrolledtext
The text component is the scrolledtext widget.
See the "scrolledtext" widget manual entry for
details on the text component item.
EXAMPLE
package require Iwidgets 4.0
iwidgets::messagebox .mb -hscrollmode dynamic \
-labeltext "Messages" -labelpos n \
-height 120 -width 550 -savedir "/tmp" -textback‐
ground #d9d9d9
pack .mb -padx 5 -pady 5 -fill both -expand yes
.mb type add ERROR -background red -foreground white
-bell 1
.mb type add WARNING -background yellow -foreground
black
.mb type add INFO -background white -foreground black
.mb issue "This is an error message in red with a beep"
ERROR
.mb issue "This warning message in yellow" WARNING
.mb issue "This is an informational message" INFO
AUTHOR
Alfredo Jahn V Mark L. Ulferts
KEYWORDS
messagebox, scrolledtext, text, widget
Tkiwidgets::messagebox(1)
