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63 lines
2.4 KiB
Plaintext
63 lines
2.4 KiB
Plaintext
class QgsRasterHistogramWidget : QWidget
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{
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%TypeHeaderCode
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#include <qgsrasterhistogramwidget.h>
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%End
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public:
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QgsRasterHistogramWidget( QgsRasterLayer *lyr, QWidget *parent /TransferThis/ = 0 );
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~QgsRasterHistogramWidget();
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/** Save the histogram as an image to disk */
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bool histoSaveAsImage( const QString& theFilename, int width = 600, int height = 600, int quality = -1 );
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/** Set the renderer widget (or just its name if there is no widget) */
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void setRendererWidget( const QString& name, QgsRasterRendererWidget* rendererWidget = NULL );
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/** Activate the histogram widget */
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void setActive( bool theActiveFlag );
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/** \brief Compute the histogram on demand. */
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bool computeHistogram( bool forceComputeFlag );
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/** Apply a histoActionTriggered() event. */
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void histoAction( const QString &actionName, bool actionFlag = true );
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/** Apply a histoActionTriggered() event. */
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void setSelectedBand( int index );
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signals:
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/**
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* Emitted when something on the widget has changed.
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* All widgets will fire this event to notify of an internal change.
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*/
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void widgetChanged();
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public slots:
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/** \brief slot executed when user wishes to refresh raster histogramwidget */
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void refreshHistogram();
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/** This slot lets you save the histogram as an image to disk */
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void on_mSaveAsImageButton_clicked();
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private slots:
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/** Used when the histogram band selector changes, or when tab is loaded. */
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void on_cboHistoBand_currentIndexChanged( int );
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/** Applies the selected min/max values to the renderer widget. */
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void applyHistoMin();
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void applyHistoMax();
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/** Button to activate picking of the min/max value on the graph. */
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void on_btnHistoMin_toggled();
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void on_btnHistoMax_toggled();
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/** Called when a selection has been made using the plot picker. */
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void histoPickerSelected( QPointF );
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/** Called when a selection has been made using the plot picker (for qwt5 only).
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@note not available in python bindings
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*/
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// void histoPickerSelectedQwt5( QwtDoublePoint );
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/** Various actions that are stored in btnHistoActions. */
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void histoActionTriggered( QAction* );
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/** Draw the min/max markers on the histogram plot. */
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void updateHistoMarkers();
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/** Button to compute the histogram, appears when no cached histogram is available. */
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void on_btnHistoCompute_clicked();
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};
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