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Matthias Kuhn 2012-09-03 09:47:22 +02:00
parent 52075ebd8f
commit b84baeb150
1 changed files with 29 additions and 1 deletions
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30
src/core/diagram/qgsdiagram.h
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@ -38,13 +38,41 @@ class CORE_EXPORT QgsDiagram
virtual QString diagramName() const = 0;
/**Returns the size in map units the diagram will use to render.*/
virtual QSizeF diagramSize( const QgsAttributeMap& attributes, const QgsRenderContext& c, const QgsDiagramSettings& s ) = 0;
/**Returns the size in map units the diagram will use to render. Interpolat size*/
/**Returns the size in map units the diagram will use to render. Interpolate size*/
virtual QSizeF diagramSize( const QgsAttributeMap& attributes, const QgsRenderContext& c, const QgsDiagramSettings& s, const QgsDiagramInterpolationSettings& is ) = 0;
protected:
/** Changes the pen width to match the current settings and rendering context
* @param pen The pen to modify
* @param s The settings that specify the pen width
* @param c The rendering specifying the proper scale units for pixel conversion
*/
void setPenWidth( QPen& pen, const QgsDiagramSettings& s, const QgsRenderContext& c );
/** Calculates a size to match the current settings and rendering context
* @param size Unused
* @param s The settings that specify the diagram size
* @param c The rendering specifying the proper scale units for pixel conversion
*
* @return The converted size for rendering
*/
QSizeF sizePainterUnits( const QSizeF& size, const QgsDiagramSettings& s, const QgsRenderContext& c );
/** Calculates a length to match the current settings and rendering context
* @param l The length to convert
* @param s Unused
* @param c The rendering specifying the proper scale units for pixel conversion
*
* @return The converted length for rendering
*/
float sizePainterUnits( float l, const QgsDiagramSettings& s, const QgsRenderContext& c );
/** Calculates a size to match the current settings and rendering context
* @param s The settings that contain the font size and size type
* @param c The rendering specifying the proper scale units for pixel conversion
*
* @return The properly scaled font for rendering
*/
QFont scaledFont( const QgsDiagramSettings& s, const QgsRenderContext& c );
};