Base class for renderer settings widgets. More...

#include <qgsrendererwidget.h>

Inheritance diagram for QgsRendererWidget:

[legend]

Signals
void	layerVariablesChanged ()
	Emitted when expression context variables on the associated vector layers have been changed. More...

void	symbolLevelsChanged ()
	Emitted when the symbol levels settings have been changed. More...

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

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

void	widgetChanged ()
	Emitted when the widget state changes. More...

Public Member Functions
	QgsRendererWidget (QgsVectorLayer layer, QgsStyle style)

void	applyChanges ()
	This method should be called whenever the renderer is actually set on the layer. More...

QgsSymbolWidgetContext	context () const
	Returns the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts. More...

virtual QgsFeatureRenderer *	renderer ()=0
	Returns pointer to the renderer (no transfer of ownership) More...

virtual void	setContext (const QgsSymbolWidgetContext &context)
	Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts. More...

void	showSymbolLevelsDialog (QgsFeatureRenderer *r)
	show a dialog with renderer's symbol level settings More...

const QgsVectorLayer *	vectorLayer () const
	Returns the vector layer associated with the widget. More...

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

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

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. More...

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. More...

bool	dockMode ()
	Returns the dock mode state. More...

QString	panelTitle ()
	The title of the panel. More...

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

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

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

Protected Slots
void	changeSymbolAngle ()
	Change marker angles of selected symbols. More...

void	changeSymbolColor ()
	Change color of selected symbols. More...

void	changeSymbolOpacity ()
	Change opacity of selected symbols. More...

void	changeSymbolSize ()
	Change marker sizes of selected symbols. More...

void	changeSymbolUnit ()
	Change units mm/map units of selected symbols. More...

void	changeSymbolWidth ()
	Change line widths of selected symbols. More...

void	contextMenuViewCategories (QPoint p)

virtual void	copy ()

virtual void	paste ()

Protected Member Functions
QgsDataDefinedSizeLegendWidget *	createDataDefinedSizeLegendWidget (const QgsMarkerSymbol symbol, const QgsDataDefinedSizeLegend ddsLegend)
	Creates widget to setup data-defined size legend. More...

virtual void	refreshSymbolView ()

virtual QList< QgsSymbol * >	selectedSymbols ()
	Subclasses may provide the capability of changing multiple symbols at once by implementing the following two methods and by connecting the slot contextMenuViewCategories(const QPoint&) More...

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

Protected Attributes
QMenu *	contextMenu = nullptr

QgsSymbolWidgetContext	mContext
	Context in which widget is shown. More...

QAction *	mCopyAction = nullptr

QgsVectorLayer *	mLayer = nullptr

QAction *	mPasteAction = nullptr

QgsStyle *	mStyle = nullptr

Additional Inherited Members
Public Slots inherited from QgsPanelWidget
void	acceptPanel ()
	Accept the panel. More...

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. More...

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. More...

Detailed Description

Base class for renderer settings widgets.

WORKFLOW:

open renderer dialog with some RENDERER (never null!)
find out which widget to use
instantiate it and set in stacked widget
on any change of renderer type, create some default (dummy?) version and change the stacked widget
when clicked OK/Apply, get the renderer from active widget and clone it for the layer

Definition at line 44 of file qgsrendererwidget.h.

Constructor & Destructor Documentation

QgsRendererWidget::QgsRendererWidget	(	QgsVectorLayer *	layer,
		QgsStyle *	style
	)

Definition at line 32 of file qgsrendererwidget.cpp.

Member Function Documentation

void QgsRendererWidget::applyChanges ( )

This method should be called whenever the renderer is actually set on the layer.

Definition at line 282 of file qgsrendererwidget.cpp.

void QgsRendererWidget::changeSymbolAngle ( )

protectedslot

Change marker angles of selected symbols.

Definition at line 223 of file qgsrendererwidget.cpp.

void QgsRendererWidget::changeSymbolColor ( )

protectedslot

Change color of selected symbols.

Definition at line 64 of file qgsrendererwidget.cpp.

void QgsRendererWidget::changeSymbolOpacity ( )

protectedslot

Change opacity of selected symbols.

Definition at line 96 of file qgsrendererwidget.cpp.

void QgsRendererWidget::changeSymbolSize ( )

protectedslot

Change marker sizes of selected symbols.

Definition at line 195 of file qgsrendererwidget.cpp.

void QgsRendererWidget::changeSymbolUnit ( )

protectedslot

Change units mm/map units of selected symbols.

Definition at line 130 of file qgsrendererwidget.cpp.

void QgsRendererWidget::changeSymbolWidth ( )

protectedslot

Change line widths of selected symbols.

Definition at line 166 of file qgsrendererwidget.cpp.

QgsSymbolWidgetContext QgsRendererWidget::context ( ) const

Returns the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts.

See also: setContext()

Since: QGIS 3.0

Definition at line 277 of file qgsrendererwidget.cpp.

void QgsRendererWidget::contextMenuViewCategories ( QPoint p )

protectedslot

Definition at line 59 of file qgsrendererwidget.cpp.

virtual void QgsRendererWidget::copy ( )

inlineprotectedvirtualslot

Definition at line 134 of file qgsrendererwidget.h.

QgsDataDefinedSizeLegendWidget * QgsRendererWidget::createDataDefinedSizeLegendWidget	(	const QgsMarkerSymbol *	symbol,
		const QgsDataDefinedSizeLegend *	ddsLegend
	)

protected

Creates widget to setup data-defined size legend.

Returns newly created panel - may be null if it could not be opened. Ownership is transferred to the caller.

Since: QGIS 3.0

Definition at line 287 of file qgsrendererwidget.cpp.

void QgsRendererWidget::layerVariablesChanged ( )

signal

Emitted when expression context variables on the associated vector layers have been changed.

Will request the parent dialog to re-synchronize with the variables.

virtual void QgsRendererWidget::paste ( )

inlineprotectedvirtualslot

Definition at line 135 of file qgsrendererwidget.h.

virtual void QgsRendererWidget::refreshSymbolView ( )

inlineprotectedvirtual

Reimplemented in QgsCategorizedSymbolRendererWidget, QgsRuleBasedRendererWidget, and QgsGraduatedSymbolRendererWidget.

Definition at line 110 of file qgsrendererwidget.h.

virtual QgsFeatureRenderer* QgsRendererWidget::renderer ( )

pure virtual

Returns pointer to the renderer (no transfer of ownership)

Implemented in QgsRuleBasedRendererWidget, QgsCategorizedSymbolRendererWidget, QgsGraduatedSymbolRendererWidget, QgsPointClusterRendererWidget, QgsInvertedPolygonRendererWidget, Qgs25DRendererWidget, QgsHeatmapRendererWidget, QgsNullSymbolRendererWidget, QgsPointDisplacementRendererWidget, and QgsSingleSymbolRendererWidget.

virtual QList<QgsSymbol *> QgsRendererWidget::selectedSymbols ( )

inlineprotectedvirtual

Subclasses may provide the capability of changing multiple symbols at once by implementing the following two methods and by connecting the slot contextMenuViewCategories(const QPoint&)

Reimplemented in QgsCategorizedSymbolRendererWidget, QgsRuleBasedRendererWidget, and QgsGraduatedSymbolRendererWidget.

Definition at line 109 of file qgsrendererwidget.h.

void QgsRendererWidget::setContext ( const QgsSymbolWidgetContext & context )

virtual

Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expression contexts.

Parameters

context symbol widget context

See also: context()

Since: QGIS 3.0

Reimplemented in QgsPointClusterRendererWidget, QgsInvertedPolygonRendererWidget, QgsHeatmapRendererWidget, QgsSingleSymbolRendererWidget, and QgsPointDisplacementRendererWidget.

Definition at line 272 of file qgsrendererwidget.cpp.

void QgsRendererWidget::showSymbolLevelsDialog ( QgsFeatureRenderer * r )

show a dialog with renderer's symbol level settings

Definition at line 251 of file qgsrendererwidget.cpp.

void QgsRendererWidget::symbolLevelsChanged ( )

signal

Emitted when the symbol levels settings have been changed.

const QgsVectorLayer* QgsRendererWidget::vectorLayer ( ) const

inline

Returns the vector layer associated with the widget.

Since: QGIS 2.12

Definition at line 75 of file qgsrendererwidget.h.

Member Data Documentation

QMenu* QgsRendererWidget::contextMenu = nullptr

protected

Definition at line 99 of file qgsrendererwidget.h.

QgsSymbolWidgetContext QgsRendererWidget::mContext

protected

Context in which widget is shown.

Definition at line 104 of file qgsrendererwidget.h.

QAction* QgsRendererWidget::mCopyAction = nullptr

protected

Definition at line 100 of file qgsrendererwidget.h.

QgsVectorLayer* QgsRendererWidget::mLayer = nullptr

protected

Definition at line 97 of file qgsrendererwidget.h.

QAction* QgsRendererWidget::mPasteAction = nullptr

protected

Definition at line 101 of file qgsrendererwidget.h.

QgsStyle* QgsRendererWidget::mStyle = nullptr

protected

Definition at line 98 of file qgsrendererwidget.h.

The documentation for this class was generated from the following files:

/build/qgis-3.4.15+24xenial/src/gui/symbology/qgsrendererwidget.h
/build/qgis-3.4.15+24xenial/src/gui/symbology/qgsrendererwidget.cpp

Signals

Public Member Functions

Protected Slots

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation