Qwt User's Guide: QwtDialSimpleNeedle Class Reference

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QwtDialSimpleNeedle Class Reference

A needle for dial widgets. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtDialSimpleNeedle:
[legend]

List of all members.

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)

Detailed Description

A needle for dial widgets.

The following colors are used:

  • QColorGroup::Mid
    Pointer
  • QColorGroup::base
    Knob
See also:
QwtDial, QwtCompass

Member Enumeration Documentation

enum QwtDialSimpleNeedle::Style

Style of the needle.

Constructor & Destructor Documentation

QwtDialSimpleNeedle::QwtDialSimpleNeedle ( Style  style,
bool  hasKnob = 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 &  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.

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

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::ColorGroup  colorGroup,
const QPoint &  center,
int  length,
int  width,
double  direction,
bool  hasKnob 
) [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 ( int  width  ) 

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()
Generated on Wed Sep 2 18:37:24 2009 for Qwt User's Guide by  doxygen 1.6.1
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