/usr/include/qgis/qgscomposershape.h is in libqgis-dev 2.4.0-1+b1.
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qgscomposershape.h
----------------------
begin : November 2009
copyright : (C) 2009 by Marco Hugentobler
email : marco@hugis.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSCOMPOSERSHAPE_H
#define QGSCOMPOSERSHAPE_H
#include "qgscomposeritem.h"
#include <QBrush>
#include <QPen>
class QgsFillSymbolV2;
/**A composer items that draws common shapes (ellipse, triangle, rectangle)*/
class CORE_EXPORT QgsComposerShape: public QgsComposerItem
{
Q_OBJECT
public:
enum Shape
{
Ellipse,
Rectangle,
Triangle
};
QgsComposerShape( QgsComposition* composition );
QgsComposerShape( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition );
~QgsComposerShape();
/** return correct graphics item type. Added in v1.7 */
virtual int type() const { return ComposerShape; }
/** \brief Reimplementation of QCanvasItem::paint - draw on canvas */
void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
/** stores state in Dom element
* @param elem is Dom element corresponding to 'Composer' tag
* @param doc write template file
*/
bool writeXML( QDomElement& elem, QDomDocument & doc ) const;
/** sets state from Dom document
* @param itemElem is Dom node corresponding to item tag
* @param doc is Dom document
*/
bool readXML( const QDomElement& itemElem, const QDomDocument& doc );
//setters and getters
QgsComposerShape::Shape shapeType() const { return mShape; }
void setShapeType( QgsComposerShape::Shape s ) { mShape = s; }
/**Sets radius for rounded rectangle corners. Added in v2.1 */
void setCornerRadius( double radius );
/**Returns the radius for rounded rectangle corners*/
double cornerRadius() const { return mCornerRadius; };
/**Sets the QgsFillSymbolV2 used to draw the shape. Must also call setUseSymbolV2( true ) to
* enable drawing with a symbol.
* Note: added in version 2.1*/
void setShapeStyleSymbol( QgsFillSymbolV2* symbol );
/**Returns the QgsFillSymbolV2 used to draw the shape.
* Note: added in version 2.1*/
QgsFillSymbolV2* shapeStyleSymbol() { return mShapeStyleSymbol; }
/**Controls whether the shape should be drawn using a QgsFillSymbolV2.
* Note: Added in v2.1 */
void setUseSymbolV2( bool useSymbolV2 );
/**Depending on the symbol style, the bounding rectangle can be larger than the shape
@note this function was added in version 2.3*/
QRectF boundingRect() const;
/**Sets new scene rectangle bounds and recalculates hight and extent. Reimplemented from
* QgsComposerItem as it needs to call updateBoundingRect after the shape's size changes
*/
void setSceneRect( const QRectF& rectangle );
protected:
/* reimplement drawFrame, since it's not a rect, but a custom shape */
virtual void drawFrame( QPainter* p );
/* reimplement drawBackground, since it's not a rect, but a custom shape */
virtual void drawBackground( QPainter* p );
/**reimplement estimatedFrameBleed, since frames on shapes are drawn using symbology
* rather than the item's pen */
virtual double estimatedFrameBleed() const;
public slots:
/**Should be called after the shape's symbol is changed. Redraws the shape and recalculates
* its selection bounds.
* Note: added in version 2.1*/
void refreshSymbol();
private:
/**Ellipse, rectangle or triangle*/
Shape mShape;
double mCornerRadius;
bool mUseSymbolV2;
QgsFillSymbolV2* mShapeStyleSymbol;
double mMaxSymbolBleed;
/**Current bounding rectangle of shape*/
QRectF mCurrentRectangle;
/* draws the custom shape */
void drawShape( QPainter* p );
/* draws the custom shape using symbol v2*/
void drawShapeUsingSymbol( QPainter* p );
/* creates the default shape symbol */
void createDefaultShapeStyleSymbol();
/**Returns a point on the line from startPoint to directionPoint that is a certain distance away from the starting point*/
QPointF pointOnLineWithDistance( const QPointF& startPoint, const QPointF& directionPoint, double distance ) const;
/**Updates the bounding rect of this item*/
void updateBoundingRect();
};
#endif // QGSCOMPOSERSHAPEITEM_H
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