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532eb58d1f
This commit implements the improvements described at: https://lists.osgeo.org/pipermail/qgis-developer/2016-September/044393.html The QgsRasterMinMaxWidget now offers a seetting to specify that the statistics should be computed each time the canvas extent changes. Other changes: - the content of the QgsRasterMinMaxWidget is now persistant. - there is no longer any Load button. The global Apply / OK button of the raster properties dialog has this effect. - the default "limits" for single band raster is now MinMax and not CumulativeCut - the default "limits" can be configured for single band, multi band single byte and multi band multi byte - "Strech using current extent" honours the "limits" instead of forcing min/max.
52 lines
1.6 KiB
Plaintext
52 lines
1.6 KiB
Plaintext
class QgsRasterRendererWidget: QWidget
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{
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%TypeHeaderCode
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#include <qgsrasterrendererwidget.h>
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%End
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public:
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QgsRasterRendererWidget( QgsRasterLayer* layer, const QgsRectangle &extent );
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virtual ~QgsRasterRendererWidget();
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virtual QgsRasterRenderer* renderer() = 0 /Factory/;
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void setRasterLayer( QgsRasterLayer* layer );
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const QgsRasterLayer* rasterLayer() const;
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/** Sets the map canvas associated with the widget. This allows the widget to retrieve the current
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* map extent and other properties from the canvas.
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* @param canvas map canvas
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* @see mapCanvas()
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* @note added in QGIS 2.16
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*/
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virtual void setMapCanvas( QgsMapCanvas* canvas );
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/** Returns the map canvas associated with the widget.
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* @see setMapCanvas()
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* @see canvasExtent()
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* @note added in QGIS 2.16
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*/
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QgsMapCanvas* mapCanvas();
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virtual QString min( int index = 0 );
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virtual QString max( int index = 0 );
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virtual void setMin( const QString& value, int index = 0 );
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virtual void setMax( const QString& value, int index = 0 );
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virtual QString stdDev();
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virtual void setStdDev( const QString& value );
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virtual int selectedBand( int index = 0 );
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virtual void doComputations();
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virtual QgsRasterMinMaxWidget* minMaxWidget();
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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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protected:
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/** Returns a band name for display. First choice is color name, otherwise band number*/
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QString displayBandName( int band ) const;
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};
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