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Add widget for Embedded Symbols renderer
Allows users to control the default symbol used for features without embedded styles
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python/gui/auto_generated/symbology/qgsembeddedsymbolrendererwidget.sip.in
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| /************************************************************************ | ||
| * This file has been generated automatically from * | ||
| * * | ||
| * src/gui/symbology/qgsembeddedsymbolrendererwidget.h * | ||
| * * | ||
| * Do not edit manually ! Edit header and run scripts/sipify.pl again * | ||
| ************************************************************************/ | ||
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| class QgsEmbeddedSymbolRendererWidget : QgsRendererWidget, QgsExpressionContextGenerator | ||
| { | ||
| %Docstring | ||
| A widget used represent options of a :py:class:`QgsEmbeddedSymbolRenderer` | ||
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| .. versionadded:: 3.20 | ||
| %End | ||
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| %TypeHeaderCode | ||
| #include "qgsembeddedsymbolrendererwidget.h" | ||
| %End | ||
| public: | ||
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| static QgsRendererWidget *create( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) /Factory/; | ||
| %Docstring | ||
| Static creation method | ||
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| :param layer: the layer where this renderer is applied | ||
| :param style: | ||
| :param renderer: the merged feature renderer (will not take ownership) | ||
| %End | ||
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| QgsEmbeddedSymbolRendererWidget( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ); | ||
| %Docstring | ||
| Constructor | ||
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| :param layer: the layer where this renderer is applied | ||
| :param style: | ||
| :param renderer: the merged feature renderer (will not take ownership) | ||
| %End | ||
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| virtual QgsFeatureRenderer *renderer(); | ||
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| virtual void setContext( const QgsSymbolWidgetContext &context ); | ||
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| virtual QgsExpressionContext createExpressionContext() const; | ||
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| }; | ||
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| /************************************************************************ | ||
| * This file has been generated automatically from * | ||
| * * | ||
| * src/gui/symbology/qgsembeddedsymbolrendererwidget.h * | ||
| * * | ||
| * Do not edit manually ! Edit header and run scripts/sipify.pl again * | ||
| ************************************************************************/ |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,112 @@ | ||
| /*************************************************************************** | ||
| qgsembeddedsymbolrendererwidget.cpp | ||
| --------------------- | ||
| begin : March 2021 | ||
| copyright : (C) 2021 by Nyall Dawson | ||
| email : nyall dot dawson at gmail dot com | ||
| *************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
| #include "qgsembeddedsymbolrendererwidget.h" | ||
| #include "qgsembeddedsymbolrenderer.h" | ||
| #include "qgsrendererregistry.h" | ||
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| #include "qgssymbol.h" | ||
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| #include "qgslogger.h" | ||
| #include "qgsvectorlayer.h" | ||
| #include "qgsapplication.h" | ||
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| QgsRendererWidget *QgsEmbeddedSymbolRendererWidget::create( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) | ||
| { | ||
| return new QgsEmbeddedSymbolRendererWidget( layer, style, renderer ); | ||
| } | ||
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| QgsEmbeddedSymbolRendererWidget::QgsEmbeddedSymbolRendererWidget( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) | ||
| : QgsRendererWidget( layer, style ) | ||
| { | ||
| if ( !layer ) | ||
| { | ||
| return; | ||
| } | ||
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| QgsWkbTypes::GeometryType type = QgsWkbTypes::geometryType( layer->wkbType() ); | ||
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| // the renderer only applies to layers with providers supporting embedded symbols | ||
| if ( !( layer->dataProvider()->capabilities() & QgsVectorDataProvider::FeatureSymbology ) ) | ||
| { | ||
| //setup blank dialog | ||
| mRenderer.reset( nullptr ); | ||
| QGridLayout *layout = new QGridLayout( this ); | ||
| QLabel *label = new QLabel( tr( "The embedded symbols renderer can only be used with layers\n" | ||
| "containing embedded styling information.\n\n" | ||
| "'%1' does not contain embedded styling and cannot be displayed." ) | ||
| .arg( layer->name() ), this ); | ||
| this->setLayout( layout ); | ||
| layout->addWidget( label ); | ||
| return; | ||
| } | ||
| setupUi( this ); | ||
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| mDefaultSymbolToolButton->setSymbolType( QgsSymbol::symbolTypeForGeometryType( type ) ); | ||
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| // try to recognize the previous renderer | ||
| // (null renderer means "no previous renderer") | ||
| if ( renderer ) | ||
| { | ||
| mRenderer.reset( QgsEmbeddedSymbolRenderer::convertFromRenderer( renderer ) ); | ||
| } | ||
| if ( ! mRenderer ) | ||
| { | ||
| // use default embedded renderer | ||
| mRenderer.reset( new QgsEmbeddedSymbolRenderer( QgsSymbol::defaultSymbol( type ) ) ); | ||
| } | ||
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| mDefaultSymbolToolButton->setSymbol( mRenderer->defaultSymbol()->clone() ); | ||
| mDefaultSymbolToolButton->setDialogTitle( tr( "Default symbol" ) ); | ||
| mDefaultSymbolToolButton->setLayer( mLayer ); | ||
| mDefaultSymbolToolButton->registerExpressionContextGenerator( this ); | ||
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| connect( mDefaultSymbolToolButton, &QgsSymbolButton::changed, this, [ = ] | ||
| { | ||
| mRenderer->setDefaultSymbol( mDefaultSymbolToolButton->symbol()->clone() ); | ||
| emit widgetChanged(); | ||
| } ); | ||
| } | ||
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| QgsFeatureRenderer *QgsEmbeddedSymbolRendererWidget::renderer() | ||
| { | ||
| return mRenderer.get(); | ||
| } | ||
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| void QgsEmbeddedSymbolRendererWidget::setContext( const QgsSymbolWidgetContext &context ) | ||
| { | ||
| QgsRendererWidget::setContext( context ); | ||
| if ( mDefaultSymbolToolButton ) | ||
| { | ||
| mDefaultSymbolToolButton->setMapCanvas( context.mapCanvas() ); | ||
| mDefaultSymbolToolButton->setMessageBar( context.messageBar() ); | ||
| } | ||
| } | ||
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| QgsExpressionContext QgsEmbeddedSymbolRendererWidget::createExpressionContext() const | ||
| { | ||
| QgsExpressionContext context; | ||
| if ( QgsExpressionContext *expressionContext = mContext.expressionContext() ) | ||
| context = *expressionContext; | ||
| else | ||
| context.appendScopes( mContext.globalProjectAtlasMapLayerScopes( mLayer ) ); | ||
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| const QList< QgsExpressionContextScope > scopes = mContext.additionalExpressionContextScopes(); | ||
| for ( const QgsExpressionContextScope &s : scopes ) | ||
| { | ||
| context << new QgsExpressionContextScope( s ); | ||
| } | ||
| return context; | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /*************************************************************************** | ||
| qgsembeddedsymbolrendererwidget.h | ||
| --------------------- | ||
| begin : March 2021 | ||
| copyright : (C) 2021 by Nyall Dawson | ||
| email : nyall dot dawson at gmail dot com | ||
| *************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
| #ifndef QGSEMBEDDEDSYMBOLRENDERERWIDGET_H | ||
| #define QGSEMBEDDEDSYMBOLRENDERERWIDGET_H | ||
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| #include "ui_qgsembeddedsymbolrendererwidgetbase.h" | ||
| #include "qgis_sip.h" | ||
| #include "qgsembeddedsymbolrenderer.h" | ||
| #include "qgsrendererwidget.h" | ||
| #include "qgis_gui.h" | ||
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| class QMenu; | ||
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| /** | ||
| * \ingroup gui | ||
| * \brief A widget used represent options of a QgsEmbeddedSymbolRenderer | ||
| * | ||
| * \since QGIS 3.20 | ||
| */ | ||
| class GUI_EXPORT QgsEmbeddedSymbolRendererWidget : public QgsRendererWidget, public QgsExpressionContextGenerator, private Ui::QgsEmbeddedSymbolRendererWidgetBase | ||
| { | ||
| Q_OBJECT | ||
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| public: | ||
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| /** | ||
| * Static creation method | ||
| * \param layer the layer where this renderer is applied | ||
| * \param style | ||
| * \param renderer the merged feature renderer (will not take ownership) | ||
| */ | ||
| static QgsRendererWidget *create( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) SIP_FACTORY; | ||
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| /** | ||
| * Constructor | ||
| * \param layer the layer where this renderer is applied | ||
| * \param style | ||
| * \param renderer the merged feature renderer (will not take ownership) | ||
| */ | ||
| QgsEmbeddedSymbolRendererWidget( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ); | ||
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| QgsFeatureRenderer *renderer() override; | ||
| void setContext( const QgsSymbolWidgetContext &context ) override; | ||
| QgsExpressionContext createExpressionContext() const override; | ||
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| private: | ||
| //! The renderer | ||
| std::unique_ptr<QgsEmbeddedSymbolRenderer> mRenderer; | ||
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| }; | ||
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| #endif // QGSEMBEDDEDSYMBOLRENDERERWIDGET_H |
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