QgsHighlight Class Reference

A class for highlight features on the map. More...

#include <qgshighlight.h>

Inheritance diagram for QgsHighlight:

Collaboration diagram for QgsHighlight:

Public Member Functions
	QgsHighlight (QgsMapCanvas *mapCanvas, QgsGeometry *geom, QgsVectorLayer *layer)
	~QgsHighlight ()
void	setColor (const QColor &color)
void	setWidth (int width)
Public Member Functions inherited from QgsMapCanvasItem
virtual void	updatePosition ()
	called on changed extent or resize event to update position of the item
virtual QRectF	boundingRect () const
	default implementation for canvas items
void	setPanningOffset (const QPoint &point)
	sets current offset, to be called from QgsMapCanvas
QgsRectangle	rect () const
	returns canvas item rectangle
void	setRect (const QgsRectangle &r)
	sets canvas item rectangle
QgsPoint	toMapCoordinates (const QPoint &point)
	transformation from screen coordinates to map coordinates
QPointF	toCanvasCoordinates (const QgsPoint &point)
	transformation from map coordinates to screen coordinates

Protected Member Functions
virtual void	paint (QPainter *p)
void	updateRect ()
	recalculates needed rectangle
Protected Member Functions inherited from QgsMapCanvasItem
	QgsMapCanvasItem (QgsMapCanvas *mapCanvas)
	protected constructor: cannot be constructed directly
virtual	~QgsMapCanvasItem ()
virtual void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget=0)
	paint function called by map canvas
void	updateCanvas ()
	schedules map canvas for repaint
bool	setRenderContextVariables (QPainter *p, QgsRenderContext &context) const
	Sets render context parameters.

Private Member Functions
void	paintPoint (QPainter *p, QgsPoint point)
void	paintLine (QPainter *p, QgsPolyline line)
void	paintPolygon (QPainter *p, QgsPolygon polygon)
	QgsHighlight ()

Private Attributes
QBrush	mBrush
QPen	mPen
QgsGeometry *	mGeometry
QgsVectorLayer *	mLayer

Additional Inherited Members
Protected Attributes inherited from QgsMapCanvasItem
QgsMapCanvas *	mMapCanvas
	pointer to map canvas
QgsRectangle	mRect
	canvas item rectangle (in map coordinates)
QPoint	mPanningOffset
	offset from normal position due current panning operation, used when converting map coordinates to move map canvas items
QSizeF	mItemSize
	cached size of the item (to return in boundingRect())

Detailed Description

A class for highlight features on the map.

The QgsHighlight class provides a transparent overlay widget for highlightng features on the map.

Definition at line 30 of file qgshighlight.h.

Constructor & Destructor Documentation

QgsHighlight::QgsHighlight	(	QgsMapCanvas *	mapCanvas,
		QgsGeometry *	geom,
		QgsVectorLayer *	layer
	)

Definition at line 28 of file qgshighlight.cpp.

References QgsMapLayer::crs(), QgsMapRenderer::destinationCrs(), QgsMapRenderer::hasCrsTransformEnabled(), QgsMapCanvas::mapRenderer(), mGeometry, mLayer, setColor(), QgsGeometry::transform(), and updateRect().

QgsHighlight::~QgsHighlight

(

)

Definition at line 43 of file qgshighlight.cpp.

References mGeometry.

QgsHighlight::QgsHighlight ( )

private

Member Function Documentation

void QgsHighlight::paint ( QPainter *  p )

protectedvirtual

Draw the shape in response to an update event.

Implements QgsMapCanvasItem.

Definition at line 129 of file qgshighlight.cpp.

References QgsGeometry::asMultiPoint(), QgsGeometry::asMultiPolygon(), QgsGeometry::asMultiPolyline(), QgsGeometry::asPoint(), QgsGeometry::asPolygon(), QgsGeometry::asPolyline(), mBrush, mGeometry, mPen, paintLine(), paintPoint(), paintPolygon(), QGis::WKBLineString, QGis::WKBLineString25D, QGis::WKBMultiLineString, QGis::WKBMultiLineString25D, QGis::WKBMultiPoint, QGis::WKBMultiPoint25D, QGis::WKBMultiPolygon, QGis::WKBMultiPolygon25D, QGis::WKBPoint, QGis::WKBPoint25D, QGis::WKBPolygon, QGis::WKBPolygon25D, QgsGeometry::wkbType(), and QGis::WKBUnknown.

void QgsHighlight::paintLine ( QPainter *  p, QgsPolyline  line  )

private

Definition at line 81 of file qgshighlight.cpp.

References QgsMapCanvasItem::toCanvasCoordinates().

Referenced by paint().

void QgsHighlight::paintPoint ( QPainter *  p, QgsPoint  point  )

private

Definition at line 67 of file qgshighlight.cpp.

References QgsMapCanvas::extent(), QgsMapCanvasItem::mMapCanvas, QgsMapCanvasItem::toCanvasCoordinates(), and QgsRectangle::width().

Referenced by paint().

void QgsHighlight::paintPolygon ( QPainter *  p, QgsPolygon  polygon  )

private

Definition at line 93 of file qgshighlight.cpp.

References mBrush, mPen, size, and QgsMapCanvasItem::toCanvasCoordinates().

Referenced by paint().

void QgsHighlight::setColor

(

const QColor &

color

)

Set the outline and fill color.

Definition at line 51 of file qgshighlight.cpp.

References mBrush, and mPen.

Referenced by QgsHighlight().

void QgsHighlight::setWidth

(

int

width

)

Set the outline width.

Definition at line 62 of file qgshighlight.cpp.

References mPen.

void QgsHighlight::updateRect ( )

protected

recalculates needed rectangle

Definition at line 202 of file qgshighlight.cpp.

References QgsGeometry::boundingBox(), QgsMapCanvas::extent(), QgsRectangle::isEmpty(), mGeometry, QgsMapCanvasItem::mMapCanvas, QgsMapCanvasItem::setRect(), QgsRectangle::setXMaximum(), QgsRectangle::setXMinimum(), QgsRectangle::setYMaximum(), QgsRectangle::setYMinimum(), QgsRectangle::width(), QgsRectangle::xMaximum(), QgsRectangle::xMinimum(), QgsRectangle::yMaximum(), and QgsRectangle::yMinimum().

Referenced by QgsHighlight().

Member Data Documentation

QBrush QgsHighlight::mBrush

private

Definition at line 52 of file qgshighlight.h.

Referenced by paint(), paintPolygon(), and setColor().

QgsGeometry* QgsHighlight::mGeometry

private

Definition at line 54 of file qgshighlight.h.

Referenced by paint(), QgsHighlight(), updateRect(), and ~QgsHighlight().

QgsVectorLayer* QgsHighlight::mLayer

private

Definition at line 55 of file qgshighlight.h.

Referenced by QgsHighlight().

QPen QgsHighlight::mPen

private

Definition at line 53 of file qgshighlight.h.

Referenced by paint(), paintPolygon(), setColor(), and setWidth().

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

• /tmp/buildd/qgis-2.0.1/src/gui/qgshighlight.h
• /tmp/buildd/qgis-2.0.1/src/gui/qgshighlight.cpp