QgsRasterDrawer Class Reference

The drawing pipe for raster layers. More...

#include <qgsrasterdrawer.h>

Collaboration diagram for QgsRasterDrawer:

Public Member Functions
	QgsRasterDrawer (QgsRasterIterator *iterator)
	~QgsRasterDrawer ()
void	draw (QPainter *p, QgsRasterViewPort *viewPort, const QgsMapToPixel *theQgsMapToPixel)

Protected Member Functions
void	drawImage (QPainter *p, QgsRasterViewPort *viewPort, const QImage &img, int topLeftCol, int topLeftRow) const
	Draws raster part.

Private Attributes
QgsRasterIterator *	mIterator

Detailed Description

The drawing pipe for raster layers.

Definition at line 33 of file qgsrasterdrawer.h.

Constructor & Destructor Documentation

QgsRasterDrawer::QgsRasterDrawer

(

QgsRasterIterator *

iterator

)

Definition at line 27 of file qgsrasterdrawer.cpp.

QgsRasterDrawer::~QgsRasterDrawer

(

)

Definition at line 31 of file qgsrasterdrawer.cpp.

Member Function Documentation

void QgsRasterDrawer::draw	(	QPainter *	p,
		QgsRasterViewPort *	viewPort,
		const QgsMapToPixel *	theQgsMapToPixel
	)

Definition at line 35 of file qgsrasterdrawer.cpp.

References drawImage(), QgsRasterBlock::image(), QgsRasterViewPort::mDrawnExtent, QgsRasterViewPort::mHeight, mIterator, QgsRasterViewPort::mWidth, QgsDebugMsg, QgsRasterIterator::readNextRasterPart(), and QgsRasterIterator::startRasterRead().

void QgsRasterDrawer::drawImage ( QPainter *  p, QgsRasterViewPort *  viewPort, const QImage &  img, int  topLeftCol, int  topLeftRow  ) const

protected

Draws raster part.

Parameters

p	the painter to draw to
viewPort	view port to draw to
img	image to draw
topLeftCol	Left position relative to left border of viewport
topLeftRow	Top position relative to top border of viewport

Definition at line 98 of file qgsrasterdrawer.cpp.

References QgsRasterViewPort::mTopLeftPoint, QgsPoint::x(), and QgsPoint::y().

Referenced by draw().

Member Data Documentation

QgsRasterIterator* QgsRasterDrawer::mIterator

private

Definition at line 51 of file qgsrasterdrawer.h.

Referenced by draw().

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The documentation for this class was generated from the following files:

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/raster/qgsrasterdrawer.h
• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/raster/qgsrasterdrawer.cpp