Q3Painter Class Reference

Member Function Documentation

Q3Painter::Q3Painter ()

Constructs a Q3Painter.

Q3Painter::Q3Painter ( QPaintDevice * pdev )

Constructs a Q3Painter that operates on device pdev.

void Q3Painter::drawArc ( const QRect & r, int a, int alen )

Draws an arc defined by the rectangle r, the start angle a and the arc length alen.

The angles a and alen are 1/16th of a degree, i.e. a full circle equals 5760 (16*360). Positive values of a and alen mean counter-clockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.

Example:

 QPainter p(myWidget);
 p.drawArc(QRect(10,10, 70,100), 100*16, 160*16); // draws a "(" arc

See also drawPie() and drawChord().

void Q3Painter::drawArc ( int x, int y, int w, int h, int startAngle, int spanAngle )

This is an overloaded function.

Draws the arc that fits inside the rectangle (x, y, w, h), with the given startAngle and spanAngle.

void Q3Painter::drawChord ( const QRect & r, int a, int alen )

Draws a chord defined by the rectangle r, the start angle a and the arc length alen.

The chord is filled with the current brush().

The angles a and alen are 1/16th of a degree, i.e. a full circle equals 5760 (16*360). Positive values of a and alen mean counter-clockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.

See also drawArc() and drawPie().

void Q3Painter::drawChord ( int x, int y, int w, int h, int startAngle, int spanAngle )

This is an overloaded function.

Draws a chord that fits inside the rectangle (x, y, w, h) with the given startAngle and spanAngle.

void Q3Painter::drawEllipse ( const QRect & r )

Draws the ellipse that fits inside the bounds r using the current pen and brush.

void Q3Painter::drawEllipse ( int x, int y, int width, int height )

This is an overloaded function.

Draws an ellipse that fits inside the bounds specified by x, y, width and height using the current pen and brush.

void Q3Painter::drawPie ( const QRect & r, int a, int alen )

Draws a pie defined by the rectangle r, the start angle a and the arc length alen.

The pie is filled with the current brush().

The angles a and alen are 1/16th of a degree, i.e. a full circle equals 5760 (16*360). Positive values of a and alen mean counter-clockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.

See also drawArc() and drawChord().

void Q3Painter::drawPie ( int x, int y, int w, int h, int startAngle, int spanAngle )

This is an overloaded function.

Draws a pie segment that fits inside the bounds (x, y, w, h) with the given startAngle and spanAngle.

void Q3Painter::drawRect ( const QRect & r )

Draws a rectangle that fits inside the rectangle r using the current pen and brush.

void Q3Painter::drawRect ( int x, int y, int w, int h )

This is an overloaded function.

Draws the rectangle that fits inside the bounds specified by x, y, w and h using the current pen and brush.

void Q3Painter::drawRoundRect ( const QRect & r, int xrnd = 25, int yrnd = 25 )

Draws a rounded rect that fits into the bounds r using the current pen and brush. The parameters xrnd and yrnd specifies the roundness in x and y direction.

void Q3Painter::drawRoundRect ( int x, int y, int w, int h, int xrnd = 25, int yrnd = 25 )

This is an overloaded function.

Draws a rounded rect that fits into the bounds x, y, w and h using the current pen and brush. The parameters xrnd and yrnd specifies the roundness in x and y direction.