void QgsGraduatedSymbolRendererWidget::changeRangeSymbol( int rangeIdx )
{
const QgsRendererRange &range = mRenderer->ranges()[rangeIdx];
std::unique_ptr< QgsSymbol > newSymbol( range.symbol()->clone() );
QgsPanelWidget *panel = QgsPanelWidget::findParentPanel( this );
if ( panel && panel->dockMode() )
{
// bit tricky here - the widget doesn't take ownership of the symbol. So we need it to last for the duration of the
// panel's existence. Accordingly, just kinda give it ownership here, and clean up in cleanUpSymbolSelector
QgsSymbolSelectorWidget *dlg = new QgsSymbolSelectorWidget( newSymbol.release(), mStyle, mLayer, panel );
dlg->setContext( mContext );
dlg->setPanelTitle( range.label() );
connect( dlg, &QgsPanelWidget::widgetChanged, this, &QgsGraduatedSymbolRendererWidget::updateSymbolsFromWidget );
connect( dlg, &QgsPanelWidget::panelAccepted, this, &QgsGraduatedSymbolRendererWidget::cleanUpSymbolSelector );
openPanel( dlg );
}
else
{
QgsSymbolSelectorDialog dlg( newSymbol.get(), mStyle, mLayer, panel );
dlg.setContext( mContext );
if ( !dlg.exec() || !newSymbol )
{
return;
}
mGraduatedSymbol = std::move( newSymbol );
applyChangeToSymbol();
}
}
void QgsGraduatedSymbolRendererWidget::changeGraduatedSymbol()
{
QgsPanelWidget *panel = QgsPanelWidget::findParentPanel( this );
std::unique_ptr< QgsSymbol > newSymbol( mGraduatedSymbol->clone() );
if ( panel && panel->dockMode() )
{
QgsSymbolSelectorWidget *dlg = new QgsSymbolSelectorWidget( newSymbol.release(), mStyle, mLayer, panel );
dlg->setContext( mContext );
connect( dlg, &QgsPanelWidget::widgetChanged, this, &QgsGraduatedSymbolRendererWidget::updateSymbolsFromWidget );
connect( dlg, &QgsPanelWidget::panelAccepted, this, &QgsGraduatedSymbolRendererWidget::cleanUpSymbolSelector );
connect( dlg, &QgsPanelWidget::panelAccepted, this, &QgsGraduatedSymbolRendererWidget::updateGraduatedSymbolIcon );
panel->openPanel( dlg );
}
else
{
QgsSymbolSelectorDialog dlg( newSymbol.get(), mStyle, mLayer, panel );
if ( !dlg.exec() || !newSymbol )
{
return;
}
mGraduatedSymbol = std::move( newSymbol );
updateGraduatedSymbolIcon();
applyChangeToSymbol();
}
}
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" ) );
}
void QgsPointDisplacementRendererWidget::on_mCenterSymbolPushButton_clicked()
{
if ( !mRenderer || !mRenderer->centerSymbol() )
{
return;
}
QgsMarkerSymbol* markerSymbol = mRenderer->centerSymbol()->clone();
QgsSymbolSelectorWidget* dlg = new QgsSymbolSelectorWidget( markerSymbol, QgsStyle::defaultStyle(), mLayer, this );
dlg->setPanelTitle( tr( "Center symbol" ) );
QgsSymbolWidgetContext context = mContext;
QgsExpressionContextScope scope;
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "", true ) );
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, 0, true ) );
QList< QgsExpressionContextScope > scopes = context.additionalExpressionContextScopes();
scopes << scope;
context.setAdditionalExpressionContextScopes( scopes );
dlg->setContext( context );
connect( dlg, SIGNAL( widgetChanged() ), this, SLOT( updateCenterSymbolFromWidget() ) );
connect( dlg, SIGNAL( panelAccepted( QgsPanelWidget* ) ), this, SLOT( cleanUpSymbolSelector( QgsPanelWidget* ) ) );
openPanel( dlg );
}
