QGIS/python/gui/symbology-ng/qgsgraduatedhistogramwidget.sip
2016-08-10 12:08:52 +02:00

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/** \ingroup gui
* \class QgsGraduatedHistogramWidget
* \brief Graphical histogram for displaying distribution of field values and
* editing range breaks for a QgsGraduatedSymbolRenderer renderer.
*
* \note Added in version 2.9
*/
class QgsGraduatedHistogramWidget : QWidget
{
%TypeHeaderCode
#include <qgsgraduatedhistogramwidget.h>
%End
public:
/** QgsGraduatedHistogramWidget constructor
* @param parent parent widget
*/
QgsGraduatedHistogramWidget( QWidget *parent /TransferThis/ = 0 );
~QgsGraduatedHistogramWidget();
/** Sets the QgsGraduatedSymbolRenderer renderer associated with the histogram.
* The histogram will fetch the ranges from the renderer before every refresh.
* @param renderer associated QgsGraduatedSymbolRenderer
*/
void setRenderer( QgsGraduatedSymbolRenderer* renderer );
signals:
/** Emitted when the user modifies the graduated ranges using the histogram widget.
* @param rangesAdded true if the user has added ranges, false if the user has just
* modified existing range breaks
*/
void rangesModified( bool rangesAdded );
protected:
virtual void drawHistogram();
};