#include <Pt/Forms/Painter.h>
Draws on a Forms paint surface or paint context. More...
Inherits PainterBase.
Public Member Functions | |
| Painter () | |
| Creates an inactive painter. | |
| Painter (PaintSurface &surface) | |
| Constructs and begins painting on surface. | |
| Painter (PaintContext &context) | |
| Constructs and begins painting on context. | |
| virtual | ~Painter () |
| Destructor. | |
| void | begin (PaintSurface &surface) |
| Begins painting on surface. | |
| void | begin (PaintContext &context) |
| Begins painting on context. | |
| void | drawPixmap (const Gfx::PointF &to, const Pixmap &pixmap) |
| Draws pixmap at to. | |
| void | drawPixmap (const Gfx::PointF &to, const Pixmap &pixmap, const Gfx::RectF &rect) |
| Draws the rect region of pixmap at to. | |
| void | finish () |
| Ends the current painting operation. | |
| const ImageFormat & | format () const |
| Returns the pixel format of the current target. | |
| const Scaling & | scaling () const |
| Returns the logical-to-physical scaling of the target. | |
| const CompositionMode & | compositionMode () const |
| Returns the current composition mode. | |
| void | setCompositionMode (const CompositionMode &mode) |
| Sets the composition mode. | |
| const Pen & | pen () const |
| Returns the current pen. | |
| void | setPen (const Pen &pen) |
| Sets the pen used to stroke lines. | |
| const Brush & | brush () const |
| Returns the current brush. | |
| void | setBrush (const Brush &brush) |
| Sets the brush used to fill areas. | |
| const Font & | font () const |
| Returns the current font. | |
| void | setFont (const Font &font) |
| Sets the font used to draw text. | |
| const Transform & | transform () const |
| Returns the user transform. | |
| void | setTransform (const Transform &tx) |
| Sets the user transform. | |
| void | resetTransform () |
| Resets the user transform to identity. | |
| const RectF * | clip () const |
| Returns the current clip rectangle or null if clipping is disabled. | |
| void | setClip (const RectF &clip) |
| Sets the clipping rect. | |
| void | resetClip () |
| Resets the clipping rect. | |
| void | drawLine (const PointF &from, const PointF &to) |
| Draws a line between two points. | |
| void | drawPolyline (const PointF *points, const size_t pointCount) |
| Draws a connected sequence of line segments. | |
| void | fillPolygon (const PointF *points, const size_t pointCount) |
| Fills a polygon defined by the given points. | |
| void | drawRect (const RectF &rect) |
| Draws the outline of a rectangle. | |
| void | fillRect (const RectF &rect) |
| Fills a rectangular area. | |
| void | drawCircle (const PointF &topLeft, double diameter) |
| Draws the outline of a circle. | |
| void | fillCircle (const PointF &topLeft, double diameter) |
| Fills a circular area. | |
| void | drawEllipse (const PointF &topLeft, const SizeF &size) |
| Draws the outline of an ellipse. | |
| void | fillEllipse (const PointF &topLeft, const SizeF &size) |
| Fills an elliptical area. | |
| void | drawArc (const PointF &topLeft, const SizeF &size, float degBegin, float degEnd) |
| Draws an arc on an ellipse. | |
| void | fillChord (const PointF &topLeft, const SizeF &size, float degBegin, float degEnd) |
| Fills a chord on an ellipse. | |
| void | fillPie (const PointF &topLeft, const SizeF &size, float degBegin, float degEnd) |
| Fills a pie segment on an ellipse. | |
| const Gfx::Path & | path () const |
| Returns the current path. | |
| void | setPath (const Path &path) |
| Sets the current path. | |
| void | drawPath () |
| Draws the current path. | |
| void | drawPath (const Path &path) |
| Draws the given path. | |
| void | fillPath () |
| Fills the current path. | |
| void | fillPath (const Path &path) |
| Fills the given path. | |
| const FontMetrics & | fontMetrics () const |
| Returns the font metrics of the current font. | |
| TextMetrics | textMetrics (const Pt::String &text) const |
| Measures a line of text using the current font. | |
| void | drawText (const PointF &to, const Pt::String &text) |
| Draws a line of text at the given position. | |
| void | drawText (const PointF &to, const Pt::String &text, const Transform &t) |
| Draws a line of text using an additional text transform. | |
| void | drawImage (const PointF &to, const Image &im) |
| Draws an image. | |
| void | drawImage (const PointF &to, const Image &im, const RectF &rect) |
| Draws a rectangular part of an image. | |
| void | drawBitmap (const PointF &to, const Bitmap &bm) |
| Draws a bitmap. | |
| void | drawBitmap (const PointF &to, const Bitmap &bm, const RectF &rect) |
| Draws a rectangular part of a bitmap. | |
Protected Member Functions | |
| virtual void | onDetachSurface (Gfx::PaintSurface &surface) |
| Clears the Forms surface binding when the Gfx surface detaches. | |
| void | beginPaint (PaintSurface &surface) |
| Begins painting to a paint surface. | |
| void | beginPaint (PaintContext &context) |
| Begins painting to a paint context. | |
| const Paint & | paint () const |
| Returns the current paint state. | |
| Canvas * | canvas () const |
| Returns the current canvas or null. | |
| virtual void | onDetachContext (PaintContext &context) |
| Called when the context is detached. | |
Painter extends Gfx::PainterBase with pixmap drawing. Construct it or call begin() on a PaintSurface or PaintContext. It does not own the target. Cached paint state remains across begin() until it is changed.