QwtDialSimpleNeedle(3) Qwt User's Guide QwtDialSimpleNeedle(3)NAMEQwtDialSimpleNeedle-
SYNOPSIS
#include <qwt_dial_needle.h>
Inherits QwtDialNeedle.
Public Types
enum Style { Arrow, Ray }
Public Member Functions
QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor
&mid=Qt::gray, const QColor &base=Qt::darkGray)
virtual void draw (QPainter *, const QPoint &, int length, double
direction, QPalette::ColorGroup=QPalette::Active) const
void setWidth (int width)
int width () const
Static Public Member Functions
static void drawArrowNeedle (QPainter *, const QPalette &,
QPalette::ColorGroup, const QPoint &, int length, int width, double
direction, bool hasKnob)
static void drawRayNeedle (QPainter *, const QPalette &,
QPalette::ColorGroup, const QPoint &, int length, int width, double
direction, bool hasKnob)
Additional Inherited Members
Detailed Description
A needle for dial widgets.
The following colors are used:
· QColorGroup::Mid
Pointer
· QColorGroup::base
Knob
See also:
QwtDial, QwtCompass
Constructor & Destructor Documentation
QwtDialSimpleNeedle::QwtDialSimpleNeedle (Stylestyle, boolhasKnob = true,
const QColor &mid = Qt::gray, const QColor &base = Qt::darkGray)
Constructor
Parameters:
style Style
hasKnob With/Without knob
mid Middle color
base Base color
Member Function Documentation
void QwtDialSimpleNeedle::draw (QPainter *painter, const QPoint ¢er,
intlength, doubledirection, QPalette::ColorGroupcolorGroup =
QPalette::Active) const [virtual]
Draw the needle
Parameters:
painter Painter
center Center of the dial, start position for the needle
length Length of the needle
direction Direction of the needle, in degrees counter clockwise
colorGroup Color group, used for painting
Implements QwtDialNeedle.
void QwtDialSimpleNeedle::drawArrowNeedle (QPainter *painter, const
QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint
¢er, intlength, intwidth, doubledirection, boolhasKnob) [static]
Draw a needle looking like an arrow
Parameters:
painter Painter
palette Palette
colorGroup Color group
center center of the needle
length Length of the needle
width Width of the needle
direction Current Direction
hasKnob With/Without knob
void QwtDialSimpleNeedle::drawRayNeedle (QPainter *painter, const QPalette
&palette, QPalette::ColorGroupcolorGroup, const QPoint ¢er,
intlength, intwidth, doubledirection, boolhasKnob) [static]
Draw a needle looking like a ray
Parameters:
painter Painter
palette Palette
colorGroup Color group
center center of the needle
length Length of the needle
width Width of the needle
direction Current Direction
hasKnob With/Without knob
void QwtDialSimpleNeedle::setWidth (intwidth)
Set the width of the needle
Parameters:
width Width
See also:
width()
int QwtDialSimpleNeedle::width () const
Returns:
the width of the needle
See also:
setWidth()Author
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Version 5.2.3 Tue Nov 20 2012 QwtDialSimpleNeedle(3)
