QgsExpressionContextScope *QgsExpressionContextUtils::composerItemScope( const QgsComposerItem *composerItem )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Composer Item" ) );
if ( !composerItem )
return scope;
//add variables defined in composer item properties
QStringList variableNames = composerItem->customProperty( QStringLiteral( "variableNames" ) ).toStringList();
QStringList variableValues = composerItem->customProperty( QStringLiteral( "variableValues" ) ).toStringList();
int varIndex = 0;
Q_FOREACH ( const QString& variableName, variableNames )
{
if ( varIndex >= variableValues.length() )
{
break;
}
QVariant varValue = variableValues.at( varIndex );
varIndex++;
scope->setVariable( variableName, varValue );
}
//add known composer item context variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "item_id" ), composerItem->id(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "item_uuid" ), composerItem->uuid(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "layout_page" ), composerItem->page(), true ) );
return scope;
}
void QgsActionManager::doAction( int index, const QgsFeature& feat, int defaultValueIndex )
{
QgsExpressionContext context = createExpressionContext();
QgsExpressionContextScope* actionScope = new QgsExpressionContextScope();
actionScope->setVariable( "current_field", feat.attribute( defaultValueIndex ) );
context << actionScope;
doAction( index, feat, context );
}
void Qgs25DRenderer::startRender( QgsRenderContext& context, const QgsFields& fields )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( "2.5D Renderer" );
scope->setVariable( "qgis_25d_height", mHeight.expressionOrField() );
scope->setVariable( "qgis_25d_angle", mAngle );
context.expressionContext().appendScope( scope );
mSymbol->startRender( context, &fields );
}
void QgsActionManager::doAction( const QUuid& actionId, const QgsFeature& feature, int defaultValueIndex )
{
QgsExpressionContext context = createExpressionContext();
QgsExpressionContextScope* actionScope = new QgsExpressionContextScope();
actionScope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "field_index" ), defaultValueIndex, true ) );
if ( defaultValueIndex >= 0 && defaultValueIndex < feature.fields().size() )
actionScope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "field_name" ), feature.fields().at( defaultValueIndex ).name(), true ) );
actionScope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "field_value" ), feature.attribute( defaultValueIndex ), true ) );
context << actionScope;
doAction( actionId, feature, context );
}
Qgs25DRendererWidget::Qgs25DRendererWidget( QgsVectorLayer* layer, QgsStyleV2* style, QgsFeatureRendererV2* renderer )
: QgsRendererV2Widget( layer, style )
, mRenderer( nullptr )
{
if ( !layer )
return;
// the renderer only applies to point vector layers
if ( layer->geometryType() != QGis::Polygon )
{
//setup blank dialog
QGridLayout* layout = new QGridLayout( this );
QLabel* label = new QLabel( tr( "The 2.5D renderer only can be used with polygon layers. \n"
"'%1' is not a polygon layer and cannot be rendered in 2.5D." )
.arg( layer->name() ), this );
layout->addWidget( label );
return;
}
setupUi( this );
if ( renderer )
{
mRenderer = Qgs25DRenderer::convertFromRenderer( renderer );
}
mHeightWidget->setLayer( layer );
QgsExpressionContextScope* scope = QgsExpressionContextUtils::layerScope( mLayer );
QVariant height = scope->variable( "qgis_25d_height" );
QVariant angle = scope->variable( "qgis_25d_angle" );
delete scope;
mHeightWidget->setField( height.isNull() ? "10" : height.toString() );
mAngleWidget->setValue( angle.isNull() ? 70 : angle.toDouble() );
mWallColorButton->setColor( mRenderer->wallColor() );
mRoofColorButton->setColor( mRenderer->roofColor() );
mShadowColorButton->setColor( mRenderer->shadowColor() );
mShadowEnabledWidget->setChecked( mRenderer->shadowEnabled() );
mShadowSizeWidget->setValue( mRenderer->shadowSpread() );
mWallExpositionShading->setChecked( mRenderer->wallShadingEnabled() );
connect( mAngleWidget, SIGNAL( valueChanged( int ) ), this, SLOT( updateRenderer() ) );
connect( mHeightWidget, SIGNAL( fieldChanged( QString ) ), this, SLOT( updateRenderer() ) );
connect( mWallColorButton, SIGNAL( colorChanged( QColor ) ), this, SLOT( updateRenderer() ) );
connect( mRoofColorButton, SIGNAL( colorChanged( QColor ) ), this, SLOT( updateRenderer() ) );
connect( mShadowColorButton, SIGNAL( colorChanged( QColor ) ), this, SLOT( updateRenderer() ) );
connect( mShadowEnabledWidget, SIGNAL( toggled( bool ) ), this, SLOT( updateRenderer() ) );
connect( mShadowSizeWidget, SIGNAL( valueChanged( double ) ), this, SLOT( updateRenderer() ) );
connect( mWallExpositionShading, SIGNAL( toggled( bool ) ), this, SLOT( updateRenderer() ) );
}
QgsExpressionContextScope* QgsExpressionContextUtils::projectScope( const QgsProject* project )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Project" ) );
if ( !project )
return scope;
const QVariantMap vars = project->customVariables();
QVariantMap::const_iterator it = vars.constBegin();
for ( ; it != vars.constEnd(); ++it )
{
scope->setVariable( it.key(), it.value() );
}
//add other known project variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_title" ), project->title(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_path" ), project->fileInfo().filePath(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_folder" ), project->fileInfo().dir().path(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_filename" ), project->fileInfo().fileName(), true ) );
QgsCoordinateReferenceSystem projectCrs = project->crs();
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_crs" ), projectCrs.authid(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "project_crs_definition" ), projectCrs.toProj4(), true ) );
scope->addFunction( QStringLiteral( "project_color" ), new GetNamedProjectColor() );
return scope;
}
QgsExpressionContext QgsPointDisplacementRendererWidget::createExpressionContext() const
{
QgsExpressionContext context;
if ( mContext.expressionContext() )
context = *mContext.expressionContext();
else
context.appendScopes( mContext.globalProjectAtlasMapLayerScopes( mLayer ) );
QgsExpressionContextScope scope;
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "", true ) );
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, 0, true ) );
QList< QgsExpressionContextScope > scopes = mContext.additionalExpressionContextScopes();
scopes << scope;
Q_FOREACH ( const QgsExpressionContextScope &s, scopes )
{
context << new QgsExpressionContextScope( s );
}
QgsExpressionContext QgsPointClusterRendererWidget::createExpressionContext() const
{
QgsExpressionContext context;
if ( mContext.expressionContext() )
context = *mContext.expressionContext();
else
context.appendScopes( mContext.globalProjectAtlasMapLayerScopes( mLayer ) );
QgsExpressionContextScope scope;
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "", true ) );
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, 0, true ) );
QList< QgsExpressionContextScope > scopes = mContext.additionalExpressionContextScopes();
scopes << scope;
const auto constScopes = scopes;
for ( const QgsExpressionContextScope &s : constScopes )
{
context << new QgsExpressionContextScope( s );
}
return context;
}
QgsExpressionContextScope *QgsExpressionContextUtils::compositionScope( const QgsComposition *composition )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Composition" ) );
if ( !composition )
return scope;
//add variables defined in composition properties
QStringList variableNames = composition->customProperty( "variableNames" ).toStringList();
QStringList variableValues = composition->customProperty( "variableValues" ).toStringList();
int varIndex = 0;
Q_FOREACH ( const QString& variableName, variableNames )
{
if ( varIndex >= variableValues.length() )
{
break;
}
QVariant varValue = variableValues.at( varIndex );
varIndex++;
scope->setVariable( variableName, varValue );
}
//add known composition context variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( "layout_numpages", composition->numPages(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "layout_pageheight", composition->paperHeight(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "layout_pagewidth", composition->paperWidth(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "layout_dpi", composition->printResolution(), true ) );
return scope;
}
QgsExpressionContextScope* QgsExpressionContextUtils::projectScope()
{
QgsProject* project = QgsProject::instance();
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Project" ) );
//add variables defined in project file
QStringList variableNames = project->readListEntry( "Variables", "/variableNames" );
QStringList variableValues = project->readListEntry( "Variables", "/variableValues" );
int varIndex = 0;
Q_FOREACH ( const QString& variableName, variableNames )
{
if ( varIndex >= variableValues.length() )
{
break;
}
QString varValueString = variableValues.at( varIndex );
varIndex++;
scope->setVariable( variableName, varValueString );
}
//add other known project variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_title", project->title(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_path", project->fileInfo().filePath(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_folder", project->fileInfo().dir().path(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_filename", project->fileInfo().fileName(), true ) );
scope->addFunction( "project_color", new GetNamedProjectColor() );
return scope;
}
QgsExpressionContextScope* QgsExpressionContextUtils::layerScope( const QgsMapLayer* layer )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Layer" ) );
if ( !layer )
return scope;
//add variables defined in layer properties
QStringList variableNames = layer->customProperty( "variableNames" ).toStringList();
QStringList variableValues = layer->customProperty( "variableValues" ).toStringList();
int varIndex = 0;
Q_FOREACH ( const QString& variableName, variableNames )
{
if ( varIndex >= variableValues.length() )
{
break;
}
QVariant varValue = variableValues.at( varIndex );
varIndex++;
scope->setVariable( variableName, varValue );
}
scope->addVariable( QgsExpressionContextScope::StaticVariable( "layer_name", layer->name(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "layer_id", layer->id(), true ) );
const QgsVectorLayer* vLayer = dynamic_cast< const QgsVectorLayer* >( layer );
if ( vLayer )
{
scope->setFields( vLayer->fields() );
}
//TODO - add functions. Possibilities include:
//is_selected
//field summary stats
return scope;
}
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 );
}
void QgsPointClusterRendererWidget::mRendererSettingsButton_clicked()
{
if ( !mRenderer )
return;
QgsRendererAbstractMetadata *m = QgsApplication::rendererRegistry()->rendererMetadata( mRenderer->embeddedRenderer()->type() );
if ( m )
{
QgsRendererWidget *w = m->createRendererWidget( mLayer, mStyle, mRenderer->embeddedRenderer()->clone() );
w->setPanelTitle( tr( "Renderer Settings" ) );
QgsExpressionContextScope scope;
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "", true ) );
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, 0, true ) );
QList< QgsExpressionContextScope > scopes = mContext.additionalExpressionContextScopes();
scopes << scope;
QgsSymbolWidgetContext context = mContext;
context.setAdditionalExpressionContextScopes( scopes );
w->setContext( context );
connect( w, &QgsPanelWidget::widgetChanged, this, &QgsPointClusterRendererWidget::updateRendererFromWidget );
w->setDockMode( this->dockMode() );
openPanel( w );
}
}
QgsExpressionContextScope* QgsExpressionContextUtils::globalScope()
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Global" ) );
//read values from QSettings
QSettings settings;
//check if settings contains any variables
if ( settings.contains( QString( "/variables/values" ) ) )
{
QList< QVariant > customVariableVariants = settings.value( QString( "/variables/values" ) ).toList();
QList< QVariant > customVariableNames = settings.value( QString( "/variables/names" ) ).toList();
int variableIndex = 0;
for ( QList< QVariant >::const_iterator it = customVariableVariants.constBegin();
it != customVariableVariants.constEnd(); ++it )
{
if ( variableIndex >= customVariableNames.length() )
{
break;
}
QVariant value = ( *it );
QString name = customVariableNames.at( variableIndex ).toString();
scope->setVariable( name, value );
variableIndex++;
}
}
//add some extra global variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( "qgis_version", QGis::QGIS_VERSION, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "qgis_version_no", QGis::QGIS_VERSION_INT, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "qgis_release_name", QGis::QGIS_RELEASE_NAME, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "qgis_platform", QgsApplication::platform(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "qgis_os_name", QgsApplication::osName(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "user_account_name", QgsApplication::userLoginName(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "user_full_name", QgsApplication::userFullName(), true ) );
return scope;
}
QgsExpressionContextScope* QgsExpressionContextUtils::globalScope()
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Global" ) );
QVariantMap customVariables = QgsApplication::customVariables();
for ( QVariantMap::const_iterator it = customVariables.constBegin(); it != customVariables.constEnd(); ++it )
{
scope->setVariable( it.key(), it.value() );
}
//add some extra global variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "qgis_version" ), Qgis::QGIS_VERSION, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "qgis_version_no" ), Qgis::QGIS_VERSION_INT, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "qgis_release_name" ), Qgis::QGIS_RELEASE_NAME, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "qgis_platform" ), QgsApplication::platform(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "qgis_os_name" ), QgsApplication::osName(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "user_account_name" ), QgsApplication::userLoginName(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "user_full_name" ), QgsApplication::userFullName(), true ) );
return scope;
}
QgsExpressionContextScope* QgsExpressionContextUtils::mapSettingsScope( const QgsMapSettings& mapSettings )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Map Settings" ) );
//add known map settings context variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( "map_id", "canvas", true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "map_rotation", mapSettings.rotation(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "map_scale", mapSettings.scale(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "map_extent_width", mapSettings.extent().width() ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "map_extent_height", mapSettings.extent().height() ) );
QgsGeometry* centerPoint = QgsGeometry::fromPoint( mapSettings.visibleExtent().center() );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "map_extent_center", QVariant::fromValue( *centerPoint ), true ) );
delete centerPoint;
return scope;
}
QgsExpressionContextScope* QgsExpressionContextUtils::mapSettingsScope( const QgsMapSettings& mapSettings )
{
// IMPORTANT: ANY CHANGES HERE ALSO NEED TO BE MADE TO QgsComposerMap::createExpressionContext()
// (rationale is described in QgsComposerMap::createExpressionContext() )
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Map Settings" ) );
//add known map settings context variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_id" ), "canvas", true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_rotation" ), mapSettings.rotation(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_scale" ), mapSettings.scale(), true ) );
QgsGeometry extent = QgsGeometry::fromRect( mapSettings.visibleExtent() );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_extent" ), QVariant::fromValue( extent ), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_extent_width" ), mapSettings.visibleExtent().width(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_extent_height" ), mapSettings.visibleExtent().height(), true ) );
QgsGeometry centerPoint = QgsGeometry::fromPoint( mapSettings.visibleExtent().center() );
scope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "map_extent_center" ), QVariant::fromValue( centerPoint ), true ) );
return scope;
}
bool QgsMapToolFeatureAction::doAction( QgsVectorLayer *layer, int x, int y )
{
if ( !layer )
return false;
QgsPointXY point = mCanvas->getCoordinateTransform()->toMapCoordinates( x, y );
QgsRectangle r;
// create the search rectangle
double searchRadius = searchRadiusMU( mCanvas );
r.setXMinimum( point.x() - searchRadius );
r.setXMaximum( point.x() + searchRadius );
r.setYMinimum( point.y() - searchRadius );
r.setYMaximum( point.y() + searchRadius );
// toLayerCoordinates will throw an exception for an 'invalid' point.
// For example, if you project a world map onto a globe using EPSG 2163
// and then click somewhere off the globe, an exception will be thrown.
try
{
r = toLayerCoordinates( layer, r );
}
catch ( QgsCsException &cse )
{
Q_UNUSED( cse );
// catch exception for 'invalid' point and proceed with no features found
QgsDebugMsg( QString( "Caught CRS exception %1" ).arg( cse.what() ) );
}
QgsAction defaultAction = layer->actions()->defaultAction( QStringLiteral( "Canvas" ) );
QgsFeatureIterator fit = layer->getFeatures( QgsFeatureRequest().setFilterRect( r ).setFlags( QgsFeatureRequest::ExactIntersect ) );
QgsFeature feat;
while ( fit.nextFeature( feat ) )
{
if ( defaultAction.isValid() )
{
// define custom substitutions: layer id and clicked coords
QgsExpressionContext context;
context << QgsExpressionContextUtils::globalScope()
<< QgsExpressionContextUtils::projectScope( QgsProject::instance() )
<< QgsExpressionContextUtils::mapSettingsScope( mCanvas->mapSettings() );
QgsExpressionContextScope *actionScope = new QgsExpressionContextScope();
actionScope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "click_x" ), point.x(), true ) );
actionScope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "click_y" ), point.y(), true ) );
actionScope->addVariable( QgsExpressionContextScope::StaticVariable( QStringLiteral( "action_scope" ), QStringLiteral( "Canvas" ), true ) );
context << actionScope;
defaultAction.run( layer, feat, context );
}
else
{
QgsMapLayerAction *mapLayerAction = QgsGui::mapLayerActionRegistry()->defaultActionForLayer( layer );
if ( mapLayerAction )
{
mapLayerAction->triggerForFeature( layer, &feat );
}
}
}
return true;
}
QgsExpressionContextScope* QgsExpressionContextUtils::atlasScope( const QgsAtlasComposition* atlas )
{
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Atlas" ) );
if ( !atlas )
{
//add some dummy atlas variables. This is done so that as in certain contexts we want to show
//users that these variables are available even if they have no current value
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_pagename", QString(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_feature", QVariant::fromValue( QgsFeature() ), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_featureid", 0, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_geometry", QVariant::fromValue( QgsGeometry() ), true ) );
return scope;
}
//add known atlas variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_totalfeatures", atlas->numFeatures(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_featurenumber", atlas->currentFeatureNumber() + 1, true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_filename", atlas->currentFilename(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_pagename", atlas->currentPageName(), true ) );
if ( atlas->enabled() && atlas->coverageLayer() )
{
scope->setFields( atlas->coverageLayer()->fields() );
}
if ( atlas->enabled() )
{
QgsFeature atlasFeature = atlas->feature();
scope->setFeature( atlasFeature );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_feature", QVariant::fromValue( atlasFeature ), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_featureid", atlasFeature.id(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "atlas_geometry", QVariant::fromValue( *atlasFeature.constGeometry() ), true ) );
}
return scope;
}
Qgs25DRendererWidget::Qgs25DRendererWidget( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer )
: QgsRendererWidget( layer, style )
{
if ( !layer )
return;
// the renderer only applies to point vector layers
if ( layer->geometryType() != QgsWkbTypes::PolygonGeometry )
{
//setup blank dialog
QGridLayout *layout = new QGridLayout( this );
QLabel *label = new QLabel( tr( "The 2.5D renderer only can be used with polygon layers. \n"
"'%1' is not a polygon layer and cannot be rendered in 2.5D." )
.arg( layer->name() ), this );
layout->addWidget( label );
return;
}
setupUi( this );
this->layout()->setContentsMargins( 0, 0, 0, 0 );
mAngleWidget->setClearValue( 0 );
mWallColorButton->setColorDialogTitle( tr( "Select Wall Color" ) );
mWallColorButton->setAllowOpacity( true );
mWallColorButton->setContext( QStringLiteral( "symbology" ) );
mRoofColorButton->setColorDialogTitle( tr( "Select Roof Color" ) );
mRoofColorButton->setAllowOpacity( true );
mRoofColorButton->setContext( QStringLiteral( "symbology" ) );
mShadowColorButton->setColorDialogTitle( tr( "Select Shadow Color" ) );
mShadowColorButton->setAllowOpacity( true );
mShadowColorButton->setContext( QStringLiteral( "symbology" ) );
if ( renderer )
{
mRenderer = Qgs25DRenderer::convertFromRenderer( renderer );
}
mHeightWidget->setLayer( layer );
QgsExpressionContextScope *scope = QgsExpressionContextUtils::layerScope( mLayer );
QVariant height = scope->variable( QStringLiteral( "qgis_25d_height" ) );
QVariant angle = scope->variable( QStringLiteral( "qgis_25d_angle" ) );
delete scope;
mHeightWidget->setField( height.isNull() ? QStringLiteral( "10" ) : height.toString() );
mAngleWidget->setValue( angle.isNull() ? 70 : angle.toDouble() );
mWallColorButton->setColor( mRenderer->wallColor() );
mRoofColorButton->setColor( mRenderer->roofColor() );
mShadowColorButton->setColor( mRenderer->shadowColor() );
mShadowEnabledWidget->setChecked( mRenderer->shadowEnabled() );
mShadowSizeWidget->setValue( mRenderer->shadowSpread() );
mWallExpositionShading->setChecked( mRenderer->wallShadingEnabled() );
connect( mAngleWidget, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), this, &Qgs25DRendererWidget::updateRenderer );
connect( mHeightWidget, static_cast < void ( QgsFieldExpressionWidget::* )( const QString & ) > ( &QgsFieldExpressionWidget::fieldChanged ), this, &Qgs25DRendererWidget::updateRenderer );
connect( mWallColorButton, &QgsColorButton::colorChanged, this, &Qgs25DRendererWidget::updateRenderer );
connect( mRoofColorButton, &QgsColorButton::colorChanged, this, &Qgs25DRendererWidget::updateRenderer );
connect( mShadowColorButton, &QgsColorButton::colorChanged, this, &Qgs25DRendererWidget::updateRenderer );
connect( mShadowEnabledWidget, &QGroupBox::toggled, this, &Qgs25DRendererWidget::updateRenderer );
connect( mShadowSizeWidget, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &Qgs25DRendererWidget::updateRenderer );
connect( mWallExpositionShading, &QAbstractButton::toggled, this, &Qgs25DRendererWidget::updateRenderer );
}
