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Qwt User's Guide 5.2.2
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A needle for dial widgets. More...
#include <qwt_dial_needle.h>

Public Types | |
| enum | Style { Arrow, Ray } |
Public Member Functions | |
| virtual void | draw (QPainter *, const QPoint &, int length, double direction, QPalette::ColorGroup=QPalette::Active) const |
| const QPalette & | palette () const |
| QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray) | |
| virtual void | setPalette (const QPalette &) |
| 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) |
Static Protected Member Functions | |
| static void | drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken) |
A needle for dial widgets.
The following colors are used:
Style of the needle.
| QwtDialSimpleNeedle::QwtDialSimpleNeedle | ( | Style | style, |
| bool | hasKnob = true, |
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| const QColor & | mid = Qt::gray, |
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| const QColor & | base = Qt::darkGray |
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| ) |
Constructor
| style | Style |
| hasKnob | With/Without knob |
| mid | Middle color |
| base | Base color |
| void QwtDialSimpleNeedle::draw | ( | QPainter * | painter, |
| const QPoint & | center, | ||
| int | length, | ||
| double | direction, | ||
| QPalette::ColorGroup | colorGroup = QPalette::Active |
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| ) | const [virtual] |
Draw the needle
| 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::ColorGroup | colorGroup, | ||
| const QPoint & | center, | ||
| int | length, | ||
| int | width, | ||
| double | direction, | ||
| bool | hasKnob | ||
| ) | [static] |
Draw a needle looking like an arrow
| 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 QwtDialNeedle::drawKnob | ( | QPainter * | painter, |
| const QPoint & | pos, | ||
| int | width, | ||
| const QBrush & | brush, | ||
| bool | sunken | ||
| ) | [static, protected, inherited] |
Draw the knob.
| void QwtDialSimpleNeedle::drawRayNeedle | ( | QPainter * | painter, |
| const QPalette & | palette, | ||
| QPalette::ColorGroup | colorGroup, | ||
| const QPoint & | center, | ||
| int | length, | ||
| int | width, | ||
| double | direction, | ||
| bool | hasKnob | ||
| ) | [static] |
Draw a needle looking like a ray
| 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 |
| const QPalette & QwtDialNeedle::palette | ( | ) | const [inherited] |
| void QwtDialNeedle::setPalette | ( | const QPalette & | palette | ) | [virtual, inherited] |
Sets the palette for the needle.
| palette | New Palette |
| void QwtDialSimpleNeedle::setWidth | ( | int | width | ) |
| int QwtDialSimpleNeedle::width | ( | ) | const |
1.7.3