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

Public Types | |
| enum | Style { TriangleStyle, ThinStyle } |
Public Member Functions | |
| virtual void | draw (QPainter *, const QPoint &, int length, double direction, QPalette::ColorGroup=QPalette::Active) const |
| const QPalette & | palette () const |
| QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red) | |
| virtual void | setPalette (const QPalette &) |
Static Public Member Functions | |
| static void | drawThinNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction) |
| static void | drawTriangleNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction) |
Static Protected Member Functions | |
| static void | drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken) |
| static void | drawPointer (QPainter *painter, const QBrush &brush, int colorOffset, const QPoint ¢er, int length, int width, double direction) |
A magnet needle for compass widgets.
A magnet needle points to two opposite directions indicating north and south.
The following colors are used:
Style of the needle.
| QwtCompassMagnetNeedle::QwtCompassMagnetNeedle | ( | Style | style = TriangleStyle, |
| const QColor & | light = Qt::white, |
||
| const QColor & | dark = Qt::red |
||
| ) |
Constructor.
| void QwtCompassMagnetNeedle::draw | ( | QPainter * | painter, |
| const QPoint & | center, | ||
| int | length, | ||
| double | direction, | ||
| QPalette::ColorGroup | colorGroup = QPalette::Active |
||
| ) | 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 QwtDialNeedle::drawKnob | ( | QPainter * | painter, |
| const QPoint & | pos, | ||
| int | width, | ||
| const QBrush & | brush, | ||
| bool | sunken | ||
| ) | [static, protected, inherited] |
Draw the knob.
| void QwtCompassMagnetNeedle::drawPointer | ( | QPainter * | painter, |
| const QBrush & | brush, | ||
| int | colorOffset, | ||
| const QPoint & | center, | ||
| int | length, | ||
| int | width, | ||
| double | direction | ||
| ) | [static, protected] |
Draw a compass needle
| painter | Painter |
| brush | Brush |
| colorOffset | Color offset |
| center | Center, where the needle starts |
| length | Length of the needle |
| width | Width of the needle |
| direction | Direction |
| void QwtCompassMagnetNeedle::drawThinNeedle | ( | QPainter * | painter, |
| const QPalette & | palette, | ||
| QPalette::ColorGroup | colorGroup, | ||
| const QPoint & | center, | ||
| int | length, | ||
| double | direction | ||
| ) | [static] |
Draw a compass needle
| painter | Painter |
| palette | Palette |
| colorGroup | Color group |
| center | Center, where the needle starts |
| length | Length of the needle |
| direction | Direction |
| void QwtCompassMagnetNeedle::drawTriangleNeedle | ( | QPainter * | painter, |
| const QPalette & | palette, | ||
| QPalette::ColorGroup | colorGroup, | ||
| const QPoint & | center, | ||
| int | length, | ||
| double | direction | ||
| ) | [static] |
Draw a compass needle
| painter | Painter |
| palette | Palette |
| colorGroup | Color group |
| center | Center, where the needle starts |
| length | Length of the needle |
| direction | Direction |
| const QPalette & QwtDialNeedle::palette | ( | ) | const [inherited] |
| void QwtDialNeedle::setPalette | ( | const QPalette & | palette | ) | [virtual, inherited] |
Sets the palette for the needle.
| palette | New Palette |
1.7.3