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 |