void QgsComposerPolygonWidget::on_mPolygonStyleButton_clicked()
{
if ( !mComposerPolygon )
{
return;
}
// use the atlas coverage layer, if any
QgsVectorLayer* coverageLayer = atlasCoverageLayer();
QScopedPointer<QgsFillSymbol> newSymbol;
newSymbol.reset( mComposerPolygon->polygonStyleSymbol()->clone() );
QgsExpressionContext context = mComposerPolygon->createExpressionContext();
QgsSymbolSelectorDialog d( newSymbol.data(), QgsStyle::defaultStyle(),
coverageLayer, this );
QgsSymbolWidgetContext symbolContext;
symbolContext.setExpressionContext( &context );
d.setContext( symbolContext );
if ( d.exec() == QDialog::Accepted )
{
mComposerPolygon->beginCommand( tr( "Polygon style changed" ) );
mComposerPolygon->setPolygonStyleSymbol( newSymbol.data() );
updatePolygonStyle();
mComposerPolygon->endCommand();
}
}
void QgsDataDefinedSizeLegendWidget::changeSymbol()
{
std::unique_ptr<QgsMarkerSymbol> newSymbol( mSourceSymbol->clone() );
QgsSymbolWidgetContext context;
if ( mMapCanvas )
context.setMapCanvas( mMapCanvas );
QgsExpressionContext ec;
ec << QgsExpressionContextUtils::globalScope()
<< QgsExpressionContextUtils::projectScope( QgsProject::instance() )
<< QgsExpressionContextUtils::atlasScope( nullptr );
if ( mMapCanvas )
ec << QgsExpressionContextUtils::mapSettingsScope( mMapCanvas->mapSettings() );
context.setExpressionContext( &ec );
QString crsAuthId = mMapCanvas ? mMapCanvas->mapSettings().destinationCrs().authid() : QString();
std::unique_ptr<QgsVectorLayer> layer( new QgsVectorLayer( "Point?crs=" + crsAuthId, "tmp", "memory" ) );
QgsSymbolSelectorDialog d( newSymbol.get(), QgsStyle::defaultStyle(), layer.get(), this );
d.setContext( context );
if ( d.exec() != QDialog::Accepted )
return;
mSourceSymbol.reset( newSymbol.release() );
QIcon icon = QgsSymbolLayerUtils::symbolPreviewIcon( mSourceSymbol.get(), btnChangeSymbol->iconSize() );
btnChangeSymbol->setIcon( icon );
emit widgetChanged();
}
void QgsComposerShapeWidget::on_mShapeStyleButton_clicked()
{
if ( !mComposerShape )
{
return;
}
// use the atlas coverage layer, if any
QgsVectorLayer* coverageLayer = atlasCoverageLayer();
QgsFillSymbol* newSymbol = mComposerShape->shapeStyleSymbol()->clone();
QgsExpressionContext context = mComposerShape->createExpressionContext();
QgsSymbolSelectorDialog d( newSymbol, QgsStyle::defaultStyle(), coverageLayer, this );
QgsSymbolWidgetContext symbolContext;
symbolContext.setExpressionContext( &context );
d.setContext( symbolContext );
if ( d.exec() == QDialog::Accepted )
{
mComposerShape->beginCommand( tr( "Shape style changed" ) );
mComposerShape->setShapeStyleSymbol( newSymbol );
updateShapeStyle();
mComposerShape->endCommand();
}
delete newSymbol;
}
void QgsComposerArrowWidget::mLineStyleButton_clicked()
{
if ( !mArrow )
{
return;
}
// use the atlas coverage layer, if any
QgsVectorLayer *coverageLayer = atlasCoverageLayer();
QgsLineSymbol *newSymbol = mArrow->lineSymbol()->clone();
QgsExpressionContext context = mArrow->createExpressionContext();
QgsSymbolSelectorWidget *d = new QgsSymbolSelectorWidget( newSymbol, QgsStyle::defaultStyle(), coverageLayer, nullptr );
QgsSymbolWidgetContext symbolContext;
symbolContext.setExpressionContext( &context );
d->setContext( symbolContext );
connect( d, &QgsPanelWidget::widgetChanged, this, &QgsComposerArrowWidget::updateLineStyleFromWidget );
connect( d, &QgsPanelWidget::panelAccepted, this, &QgsComposerArrowWidget::cleanUpLineStyleSelector );
openPanel( d );
mArrow->beginCommand( tr( "Arrow line style changed" ) );
}
void QgsComposerPolygonWidget::on_mPolygonStyleButton_clicked()
{
if ( !mComposerPolygon )
{
return;
}
// use the atlas coverage layer, if any
QgsVectorLayer* coverageLayer = atlasCoverageLayer();
QgsFillSymbol* newSymbol = mComposerPolygon->polygonStyleSymbol()->clone();
QgsExpressionContext context = mComposerPolygon->createExpressionContext();
QgsSymbolSelectorWidget* d = new QgsSymbolSelectorWidget( newSymbol, QgsStyle::defaultStyle(), coverageLayer, nullptr );
QgsSymbolWidgetContext symbolContext;
symbolContext.setExpressionContext( &context );
d->setContext( symbolContext );
connect( d, SIGNAL( widgetChanged() ), this, SLOT( updateStyleFromWidget() ) );
connect( d, SIGNAL( panelAccepted( QgsPanelWidget* ) ), this, SLOT( cleanUpStyleSelector( QgsPanelWidget* ) ) );
openPanel( d );
mComposerPolygon->beginCommand( tr( "Polygon style changed" ) );
}
void QgsComposerMapGridWidget::on_mGridMarkerStyleButton_clicked()
{
if ( !mComposerMapGrid || !mComposerMap )
{
return;
}
// use the atlas coverage layer, if any
QgsVectorLayer* coverageLayer = atlasCoverageLayer();
QgsMarkerSymbol* newSymbol = static_cast<QgsMarkerSymbol*>( mComposerMapGrid->markerSymbol()->clone() );
QgsExpressionContext context = mComposerMap->createExpressionContext();
QgsSymbolSelectorWidget* d = new QgsSymbolSelectorWidget( newSymbol, QgsStyle::defaultStyle(), coverageLayer, nullptr );
QgsSymbolWidgetContext symbolContext;
symbolContext.setExpressionContext( &context );
d->setContext( symbolContext );
connect( d, SIGNAL( widgetChanged() ), this, SLOT( updateGridMarkerStyleFromWidget() ) );
connect( d, SIGNAL( panelAccepted( QgsPanelWidget* ) ), this, SLOT( cleanUpGridMarkerStyleSelector( QgsPanelWidget* ) ) );
openPanel( d );
mComposerMap->beginCommand( tr( "Grid markers style changed" ) );
}