Histogram widget. More...

#include <qgsrasterhistogramwidget.h>

Inheritance diagram for QgsRasterHistogramWidget:

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Public Slots
void	apply () override

void	refreshHistogram ()
	slot executed when user wishes to refresh raster histogramwidget

Public Slots inherited from QgsMapLayerConfigWidget
virtual void	apply ()=0
	Called when changes to the layer need to be made.

virtual void	focusDefaultWidget ()
	Focuses the default widget for the page.

Public Slots inherited from QgsPanelWidget
void	acceptPanel ()
	Accept the panel.

void	openPanel (QgsPanelWidget *panel)
	Open a panel or dialog depending on dock mode setting If dock mode is `true` this method will emit the showPanel signal for connected slots to handle the open event.

Public Member Functions
	QgsRasterHistogramWidget (QgsRasterLayer layer, QWidget parent=nullptr)
	Constructor for QgsRasterHistogramWidget, for the specified raster layer.

bool	computeHistogram (bool forceComputeFlag)
	Compute the histogram on demand.

void	histoAction (const QString &actionName, bool actionFlag=true)
	Apply a histoActionTriggered() event.

bool	histoSaveAsImage (const QString &filename, int width=600, int height=600, int quality=-1)
	Save the histogram as an image to disk.

void	setActive (bool activeFlag)
	Activate the histogram widget.

void	setRendererWidget (const QString &name, QgsRasterRendererWidget *rendererWidget=nullptr)
	Sets the renderer widget (or just its name if there is no widget)

void	setSelectedBand (int index)
	Apply a histoActionTriggered() event.

Public Member Functions inherited from QgsMapLayerConfigWidget
	QgsMapLayerConfigWidget (QgsMapLayer layer, QgsMapCanvas canvas, QWidget *parent=nullptr)
	A panel widget that can be shown in the map style dock.

virtual void	setMapLayerConfigWidgetContext (const QgsMapLayerConfigWidgetContext &context)
	Sets the context under which the widget is being shown.

virtual bool	shouldTriggerLayerRepaint () const
	Whether this config widget changes map layer properties in a way that triggerRepaint() should be called for the layer after applying changes.

virtual void	syncToLayer (QgsMapLayer *layer)
	Reset to original (vector layer) values.

Public Member Functions inherited from QgsPanelWidget
	QgsPanelWidget (QWidget *parent=nullptr)
	Base class for any widget that can be shown as a inline panel.

virtual bool	applySizeConstraintsToStack () const
	Returns `true` if the size constraints and hints for the panel widget should be applied to the parent QgsPanelWidgetStack which this panel is shown in.

bool	autoDelete ()
	The the auto delete property on the widget.

void	connectChildPanel (QgsPanelWidget *panel)
	Connect the given sub panel widgets showPanel signals to this current panels main showPanel event to bubble up to the user.

void	connectChildPanels (const QList< QgsPanelWidget * > &panels)
	Connect the given sub panel widgets showPanel signals to this current panels main showPanel event to bubble up to the user.

bool	dockMode ()
	Returns the dock mode state.

virtual QMenu *	menuButtonMenu ()
	Returns the menu to use for the menu button for this panel, or `nullptr` if no menu button is required.

virtual QString	menuButtonTooltip () const
	Returns the (translated) tooltip text to use for the menu button for this panel.

QString	panelTitle ()
	The title of the panel.

void	setAutoDelete (bool autoDelete)
	The the auto delete property on the widget.

virtual void	setDockMode (bool dockMode)
	Set the widget in dock mode which tells the widget to emit panel widgets and not open dialogs.

void	setPanelTitle (const QString &panelTitle)
	Set the title of the panel when shown in the interface.

Additional Inherited Members
Signals inherited from QgsMapLayerConfigWidget
void	dynamicTemporalControlToggled (bool enabled)
	Emitted whenever the dynamic temporal control option is toggled in the associated layer properties dialog.

Signals inherited from QgsPanelWidget
void	panelAccepted (QgsPanelWidget *panel)
	Emitted when the panel is accepted by the user.

void	showPanel (QgsPanelWidget *panel)
	Emit when you require a panel to be show in the interface.

void	widgetChanged ()
	Emitted when the widget state changes.

Static Public Member Functions inherited from QgsPanelWidget
static QgsPanelWidget *	findParentPanel (QWidget *widget)
	Traces through the parents of a widget to find if it is contained within a QgsPanelWidget widget.

Protected Member Functions inherited from QgsPanelWidget
void	keyPressEvent (QKeyEvent *event) override
	Overridden key press event to handle the esc event on the widget.

Protected Attributes inherited from QgsMapLayerConfigWidget
QgsMapLayer *	mLayer = nullptr

QgsMapCanvas *	mMapCanvas = nullptr

QgsMapLayerConfigWidgetContext	mMapLayerConfigWidgetContext

Detailed Description

Histogram widget.

Definition at line 41 of file qgsrasterhistogramwidget.h.

Constructor & Destructor Documentation

◆ QgsRasterHistogramWidget()

QgsRasterHistogramWidget::QgsRasterHistogramWidget	(	QgsRasterLayer *	layer,
		QWidget *	parent = `nullptr`
	)

Constructor for QgsRasterHistogramWidget, for the specified raster layer.

Definition at line 57 of file qgsrasterhistogramwidget.cpp.

Member Function Documentation

◆ apply

void QgsRasterHistogramWidget::apply ( )

overrideslot

Definition at line 1220 of file qgsrasterhistogramwidget.cpp.

◆ computeHistogram()

bool QgsRasterHistogramWidget::computeHistogram ( bool forceComputeFlag )

Compute the histogram on demand.

Definition at line 322 of file qgsrasterhistogramwidget.cpp.

◆ histoAction()

void QgsRasterHistogramWidget::histoAction	(	const QString &	actionName,
		bool	actionFlag = `true`
	)

Apply a histoActionTriggered() event.

Definition at line 738 of file qgsrasterhistogramwidget.cpp.

◆ histoSaveAsImage()

bool QgsRasterHistogramWidget::histoSaveAsImage	(	const QString &	filename,
		int	width = `600`,
		int	height = `600`,
		int	quality = `-1`
	)

Save the histogram as an image to disk.

Definition at line 669 of file qgsrasterhistogramwidget.cpp.

◆ refreshHistogram

void QgsRasterHistogramWidget::refreshHistogram ( )

slot

slot executed when user wishes to refresh raster histogramwidget

Definition at line 369 of file qgsrasterhistogramwidget.cpp.

◆ setActive()

void QgsRasterHistogramWidget::setActive ( bool activeFlag )

Activate the histogram widget.

Definition at line 255 of file qgsrasterhistogramwidget.cpp.

◆ setRendererWidget()

void QgsRasterHistogramWidget::setRendererWidget	(	const QString &	name,
		QgsRasterRendererWidget *	rendererWidget = `nullptr`
	)

Sets the renderer widget (or just its name if there is no widget)

Definition at line 247 of file qgsrasterhistogramwidget.cpp.

◆ setSelectedBand()

void QgsRasterHistogramWidget::setSelectedBand ( int index )