QwtCompassMagnetNeedle Class Reference

Inheritance diagram for QwtCompassMagnetNeedle:

[legend]Collaboration diagram for QwtCompassMagnetNeedle:

[legend]List of all members.

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Detailed Description

A magnet needle for compass widgets.

A magnet needle points to two opposite directions indicating north and south.

The following colors are used:

• QColorGroup::Light
  Used for pointing south
• QColorGroup::Dark
  Used for pointing north
• QColorGroup::Base
  Knob (ThinStyle only)

See also:

QwtDial, QwtCompass

Definition at line 125 of file qwt_dial_needle.h.

Public Types
enum	Style {   TriangleStyle,   ThinStyle }
Public Member Functions
	QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)
virtual void	draw (QPainter *, const QPoint &, int length, double direction, QPalette::ColorGroup=QPalette::Active) const
Static Public Member Functions
static void	drawTriangleNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)
static void	drawThinNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)
Static Protected Member Functions
static void	drawPointer (QPainter *painter, const QBrush &brush, int colorOffset, const QPoint &center, int length, int width, double direction)

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Member Enumeration Documentation

enum QwtCompassMagnetNeedle::Style

Style of the needle. Definition at line 129 of file qwt_dial_needle.h.

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Constructor & Destructor Documentation

QwtCompassMagnetNeedle::QwtCompassMagnetNeedle (  Style  = TriangleStyle, const QColor &  light = Qt::white, const QColor &  dark = Qt::red )

Constructor. Definition at line 265 of file qwt_dial_needle.cpp. References QwtDialNeedle::palette().

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Member Function Documentation

void QwtCompassMagnetNeedle::draw (  QPainter *  painter, const QPoint &  center, int  length, double  direction, QPalette::ColorGroup  colorGroup = 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. Definition at line 292 of file qwt_dial_needle.cpp. References drawThinNeedle(), drawTriangleNeedle(), and QwtDialNeedle::palette().

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 Parameters: 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 Definition at line 419 of file qwt_dial_needle.cpp. Referenced by drawThinNeedle().

void QwtCompassMagnetNeedle::drawThinNeedle (  QPainter *  painter, const QPalette &  palette, QPalette::ColorGroup  colorGroup, const QPoint &  center, int  length, double  direction )  [static]

Draw a compass needle Parameters: painter  Painter palette  Palette colorGroup  Color group center  Center, where the needle starts length  Length of the needle direction  Direction Definition at line 383 of file qwt_dial_needle.cpp. References QwtDialNeedle::drawKnob(), and drawPointer(). Referenced by draw().

void QwtCompassMagnetNeedle::drawTriangleNeedle (  QPainter *  painter, const QPalette &  palette, QPalette::ColorGroup  colorGroup, const QPoint &  center, int  length, double  direction )  [static]

Draw a compass needle Parameters: painter  Painter palette  Palette colorGroup  Color group center  Center, where the needle starts length  Length of the needle direction  Direction Definition at line 317 of file qwt_dial_needle.cpp. Referenced by draw().

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