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src
gui
symbology
qgsheatmaprendererwidget.h
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/***************************************************************************
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qgsheatmaprendererwidget.h
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--------------------------
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begin : November 2014
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copyright : (C) 2014 Nyall Dawson
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email : nyall dot dawson at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSHEATMAPRENDERERWIDGET_H
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#define QGSHEATMAPRENDERERWIDGET_H
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#include "ui_qgsheatmaprendererwidgetbase.h"
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#include "
qgis_sip.h
"
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#include "
qgsrendererwidget.h
"
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#include "qgis_gui.h"
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class
QMenu;
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class
QgsHeatmapRenderer
;
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class
GUI_EXPORT
QgsHeatmapRendererWidget
:
public
QgsRendererWidget
,
private
Ui::QgsHeatmapRendererWidgetBase
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{
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Q_OBJECT
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public
:
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static
QgsRendererWidget
*create(
QgsVectorLayer
*layer,
QgsStyle
*style,
QgsFeatureRenderer
*renderer )
SIP_FACTORY
;
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QgsHeatmapRendererWidget
(
QgsVectorLayer
*layer,
QgsStyle
*style,
QgsFeatureRenderer
*renderer );
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~QgsHeatmapRendererWidget
()
override
;
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QgsFeatureRenderer
*
renderer
()
override
;
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void
setContext
(
const
QgsSymbolWidgetContext
&context )
override
;
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QgsExpressionContext
createExpressionContext
()
const override
;
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private
:
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std::unique_ptr< QgsHeatmapRenderer > mRenderer;
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private
slots:
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void
applyColorRamp();
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void
showLegendSettings();
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void
mRadiusUnitWidget_changed();
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void
mRadiusSpinBox_valueChanged(
double
d );
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void
mMaxSpinBox_valueChanged(
double
d );
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void
mQualitySlider_valueChanged(
int
v );
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void
weightExpressionChanged(
const
QString &expression );
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};
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#endif
// QGSHEATMAPRENDERERWIDGET_H
QgsExpressionContext
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Definition
qgsexpressioncontext.h:471
QgsFeatureRenderer
Abstract base class for all 2D vector feature renderers.
Definition
qgsrenderer.h:106
QgsHeatmapRendererWidget
Definition
qgsheatmaprendererwidget.h:31
QgsHeatmapRendererWidget::~QgsHeatmapRendererWidget
~QgsHeatmapRendererWidget() override
QgsHeatmapRenderer
A renderer which draws points as a live heatmap.
Definition
qgsheatmaprenderer.h:35
QgsRendererWidget
Base class for renderer settings widgets.
Definition
qgsrendererwidget.h:48
QgsRendererWidget::setContext
virtual void setContext(const QgsSymbolWidgetContext &context)
Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expressio...
Definition
qgsrendererwidget.cpp:348
QgsRendererWidget::renderer
virtual QgsFeatureRenderer * renderer()=0
Returns pointer to the renderer (no transfer of ownership)
QgsRendererWidget::createExpressionContext
QgsExpressionContext createExpressionContext() const override
This method needs to be reimplemented in all classes which implement this interface and return an exp...
Definition
qgsrendererwidget.cpp:409
QgsStyle
Definition
qgsstyle.h:87
QgsSymbolWidgetContext
Contains settings which reflect the context in which a symbol (or renderer) widget is shown,...
Definition
qgssymbolwidgetcontext.h:35
QgsVectorLayer
Represents a vector layer which manages a vector based data sets.
Definition
qgsvectorlayer.h:401
qgis_sip.h
SIP_FACTORY
#define SIP_FACTORY
Definition
qgis_sip.h:76
qgsrendererwidget.h
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