35#include <QProgressDialog>
36#include <QTreeWidgetItem>
43#ifdef ENABLE_MODELTEST
55 , mContextMenu( new QMenu( this ) )
71 mRenderer = std::make_unique< QgsRuleBasedRenderer >( symbol );
77 this->layout()->setContentsMargins( 0, 0, 0, 0 );
80#ifdef ENABLE_MODELTEST
81 new ModelTest(
mModel,
this );
83 viewRules->setModel(
mModel );
86 mDeleteAction->setShortcut( QKeySequence( QKeySequence::Delete ) );
92 mRefineMenu =
new QMenu( tr(
"Refine Current Rule" ), btnRefineRule );
105 connect( viewRules, &QWidget::customContextMenuRequested,
this, &QgsRuleBasedRendererWidget::showContextMenu );
167 QModelIndex currentIndex = viewRules->selectionModel()->currentIndex();
168 mModel->
insertRule( currentIndex.parent(), currentIndex.row() + 1, newrule );
169 QModelIndex newindex =
mModel->
index( currentIndex.row() + 1, 0, currentIndex.parent() );
170 viewRules->selectionModel()->setCurrentIndex( newindex, QItemSelectionModel::ClearAndSelect );
178 viewRules->selectionModel()->setCurrentIndex( newindex, QItemSelectionModel::ClearAndSelect );
185 QItemSelectionModel *sel = viewRules->selectionModel();
186 QModelIndex idx = sel->currentIndex();
187 if ( !idx.isValid() )
194 editRule( viewRules->selectionModel()->currentIndex() );
199 if ( !index.isValid() )
226 QItemSelection sel = viewRules->selectionModel()->selection();
227 QgsDebugMsgLevel( QStringLiteral(
"REMOVE RULES!!! ranges: %1" ).arg( sel.count() ), 2 );
228 const auto constSel = sel;
229 for (
const QItemSelectionRange &range : constSel )
231 QgsDebugMsgLevel( QStringLiteral(
"RANGE: r %1 - %2" ).arg( range.top() ).arg( range.bottom() ), 2 );
232 if ( range.isValid() )
233 mModel->
removeRows( range.top(), range.bottom() - range.top() + 1, range.parent() );
236 viewRules->selectionModel()->clear();
243 btnEditRule->setEnabled( current.isValid() );
252#include <QDialogButtonBox>
253#include <QInputDialog>
258 QModelIndexList indexlist = viewRules->selectionModel()->selectedRows();
260 if ( indexlist.isEmpty() )
266 else if ( type == 1 )
274 const auto constIndexlist = indexlist;
275 for (
const QModelIndex &index : constIndexlist )
276 viewRules->expand( index );
314 for (
const QModelIndex &index : indexList )
319 if ( !initialRule->
symbol() )
321 QMessageBox::warning(
this, tr(
"Scale Refinement" ), tr(
"Parent rule %1 must have a symbol for this operation." ).arg( initialRule->
label() ) );
326 QString txt = QInputDialog::getText(
this,
327 tr(
"Scale Refinement" ),
328 tr(
"Please enter scale denominators at which will split the rule, separate them by commas (e.g. 1000,5000):" ) );
334 const auto constSplit = txt.split(
',' );
335 for (
const QString &item : constSplit )
337 int scale = item.toInt( &ok );
339 scales.append( scale );
341 QMessageBox::information(
this, tr(
"Scale Refinement" ), tr(
"\"%1\" is not valid scale denominator, ignoring it." ).arg( item ) );
344 for (
const QModelIndex &index : indexList )
363 mRenderer->setLegendSymbolItem( legendSymbol.ruleKey(), sym->
clone() );
372 QList<QgsSymbol *> symbolList;
379 QItemSelection sel = viewRules->selectionModel()->selection();
380 const auto constSel = sel;
381 for (
const QItemSelectionRange &range : constSel )
383 QModelIndex parent = range.parent();
386 for (
int row = range.top(); row <= range.bottom(); row++ )
388 symbolList.append( children.at( row )->symbol() );
398 QItemSelection sel = viewRules->selectionModel()->selection();
399 const auto constSel = sel;
400 for (
const QItemSelectionRange &range : constSel )
402 QModelIndex parent = range.parent();
405 for (
int row = range.top(); row <= range.bottom(); row++ )
407 rl.append( children.at( row )->clone() );
432 if ( event->key() == Qt::Key_C && event->modifiers() == Qt::ControlModifier )
438 else if ( event->key() == Qt::Key_V && event->modifiers() == Qt::ControlModifier )
440 QgsRuleBasedRenderer::RuleList::const_iterator rIt =
mCopyBuffer.constBegin();
483 QString path =
"/Windows/RuleBasedTree/sectionWidth/" + QString::number( section );
490 QString path = QStringLiteral(
"/Windows/RuleBasedTree/sectionWidth/" );
491 QHeaderView *head = viewRules->header();
492 head->resizeSection( 0, settings.
value( path + QString::number( 0 ), 150 ).toInt() );
493 head->resizeSection( 1, settings.
value( path + QString::number( 1 ), 150 ).toInt() );
494 head->resizeSection( 2, settings.
value( path + QString::number( 2 ), 80 ).toInt() );
495 head->resizeSection( 3, settings.
value( path + QString::number( 3 ), 80 ).toInt() );
496 head->resizeSection( 4, settings.
value( path + QString::number( 4 ), 50 ).toInt() );
497 head->resizeSection( 5, settings.
value( path + QString::number( 5 ), 50 ).toInt() );
502 QModelIndexList indexlist = viewRules->selectionModel()->selectedRows();
505 if ( indexlist.isEmpty() )
509 QApplication::clipboard()->setMimeData( mime );
514 const QMimeData *mime = QApplication::clipboard()->mimeData();
515 QModelIndexList indexlist = viewRules->selectionModel()->selectedRows();
517 if ( indexlist.isEmpty() )
520 index = indexlist.first();
521 mModel->
dropMimeData( mime, Qt::CopyAction, index.row(), index.column(), index.parent() );
530 const QModelIndexList indexList = viewRules->selectionModel()->selectedRows();
531 for (
const QModelIndex &index : indexList )
535 if ( !rule->symbol() || rule->symbol()->type() != tempSymbol->type() )
544void QgsRuleBasedRendererWidget::refineRuleCategoriesAccepted(
QgsPanelWidget *panel )
550 QModelIndexList indexList = viewRules->selectionModel()->selectedRows();
551 const auto constIndexList = indexList;
552 for (
const QModelIndex &index : constIndexList )
561void QgsRuleBasedRendererWidget::refineRuleRangesAccepted(
QgsPanelWidget *panel )
566 QModelIndexList indexList = viewRules->selectionModel()->selectedRows();
567 const auto constIndexList = indexList;
568 for (
const QModelIndex &index : constIndexList )
577void QgsRuleBasedRendererWidget::ruleWidgetPanelAccepted(
QgsPanelWidget *panel )
586 QModelIndex index = viewRules->selectionModel()->currentIndex();
591void QgsRuleBasedRendererWidget::liveUpdateRuleFromPanel()
593 ruleWidgetPanelAccepted( qobject_cast<QgsPanelWidget *>( sender() ) );
596void QgsRuleBasedRendererWidget::showContextMenu( QPoint )
602 const QList< QAction * > actions =
contextMenu->actions();
603 for ( QAction *act : actions )
620 QHash<QgsRuleBasedRenderer::Rule *, QgsRuleBasedRendererCount> countMap;
624 const auto constRuleList = ruleList;
627 countMap[rule].count = 0;
628 countMap[rule].duplicateCount = 0;
653 QProgressDialog p( tr(
"Calculating feature count." ), tr(
"Abort" ), 0, 100 );
654 p.setWindowModality( Qt::WindowModal );
655 long long featuresCounted = 0;
663 const auto constFeatureRuleList = featureRuleList;
666 countMap[rule].count++;
667 if ( featureRuleList.size() > 1 )
669 countMap[rule].duplicateCount++;
671 const auto constFeatureRuleList = featureRuleList;
674 if ( duplicateRule == rule )
continue;
675 countMap[rule].duplicateCountMap[duplicateRule] += 1;
679 if ( featuresCounted % 50 == 0 )
681 if ( featuresCounted > nFeatures )
685 p.setValue(
static_cast< double >( featuresCounted ) / nFeatures * 100.0 );
686 if ( p.wasCanceled() )
692 p.setValue( nFeatures );
697 const auto constKeys = countMap.keys();
700 QgsDebugMsgLevel( QStringLiteral(
"rule: %1 count %2" ).arg( rule->label() ).arg( countMap[rule].count ), 2 );
709 bool enabled = !viewRules->selectionModel()->selectedIndexes().isEmpty();
710 btnRefineRule->setEnabled( enabled );
711 btnRemoveRule->setEnabled( enabled );
720 , mContext( context )
723 layout()->setContentsMargins( 0, 0, 0, 0 );
735 groupScale->setChecked(
true );
743 groupSymbol->setChecked(
true );
748 groupSymbol->setChecked(
false );
757 QVBoxLayout *l =
new QVBoxLayout;
759 groupSymbol->setLayout( l );
769 connect( mFilterRadio, &QRadioButton::toggled,
this, [ = ](
bool toggled ) { filterFrame->setEnabled( toggled ) ; } );
770 connect( mElseRadio, &QRadioButton::toggled,
this, [ = ](
bool toggled ) {
if ( toggled ) editFilter->setText( QStringLiteral(
"ELSE" ) );} );
780 setWindowModality( Qt::WindowModal );
783 QVBoxLayout *layout =
new QVBoxLayout(
this );
785 scrollArea->setFrameShape( QFrame::NoFrame );
786 layout->addWidget( scrollArea );
788 buttonBox =
new QDialogButtonBox( QDialogButtonBox::Cancel | QDialogButtonBox::Help | QDialogButtonBox::Ok );
791 scrollArea->setWidget( mPropsWidget );
792 layout->addWidget( buttonBox );
793 this->setWindowTitle(
"Edit Rule" );
797 connect( buttonBox, &QDialogButtonBox::rejected,
this, &QDialog::reject );
798 connect( buttonBox, &QDialogButtonBox::helpRequested,
this, &QgsRendererRulePropsDialog::showHelp );
813 mPropsWidget->
apply();
817void QgsRendererRulePropsDialog::showHelp()
819 QgsHelp::openHelp( QStringLiteral(
"working_with_vector/vector_properties.html#rule-based-rendering" ) );
842 if ( !mFilterRadio->isChecked() )
848 QMessageBox::critical(
this, tr(
"Test Filter" ), tr(
"Filter expression parsing error:\n" ) + filter.
parserErrorString() );
861 if ( !filter.
prepare( &context ) )
863 QMessageBox::critical(
this, tr(
"Test Filter" ), filter.
evalErrorString() );
867 QApplication::setOverrideCursor( Qt::WaitCursor );
883 QApplication::restoreOverrideCursor();
885 QMessageBox::information(
this, tr(
"Test Filter" ), tr(
"Filter returned %n feature(s)",
"number of filtered features", count ) );
890 QString filter = mElseRadio->isChecked() ? QStringLiteral(
"ELSE" ) : editFilter->text();
918 : QAbstractItemModel( parent )
926 if ( !
index.isValid() )
927 return Qt::ItemIsDropEnabled;
930 Qt::ItemFlag drop = (
index.column() == 0 ? Qt::ItemIsDropEnabled : Qt::NoItemFlags );
932 Qt::ItemFlag checkable = (
index.column() == 0 ? Qt::ItemIsUserCheckable : Qt::NoItemFlags );
934 return Qt::ItemIsEnabled | Qt::ItemIsSelectable |
935 Qt::ItemIsEditable | checkable |
936 Qt::ItemIsDragEnabled | drop;
941 if ( !
index.isValid() )
946 if ( role == Qt::DisplayRole || role == Qt::ToolTipRole )
948 switch (
index.column() )
951 return rule->
label();
974 if ( role == Qt::DisplayRole )
982 QString tip = QStringLiteral(
"<p style='margin:0px;'><ul>" );
984 for (
auto it = duplicateMap.constBegin(); it != duplicateMap.constEnd(); ++it )
986 QString label = it.key()->label().replace(
'&', QLatin1String(
"&" ) ).replace(
'>', QLatin1String(
">" ) ).replace(
'<', QLatin1String(
"<" ) );
987 tip += tr(
"<li><nobr>%1 features also in rule %2</nobr></li>" ).arg( it.value() ).arg( label );
989 tip += QLatin1String(
"</ul>" );
1003 else if ( role == Qt::DecorationRole &&
index.column() == 0 && rule->
symbol() )
1008 else if ( role == Qt::TextAlignmentRole )
1010 return (
index.column() == 2 ||
index.column() == 3 ) ?
static_cast<Qt::Alignment::Int
>( Qt::AlignRight ) :
static_cast<Qt::Alignment::Int
>( Qt::AlignLeft );
1012 else if ( role == Qt::FontRole &&
index.column() == 1 )
1017 italicFont.setItalic(
true );
1022 else if ( role == Qt::EditRole )
1024 switch (
index.column() )
1027 return rule->
label();
1038 else if ( role == Qt::CheckStateRole )
1040 if (
index.column() != 0 )
1042 return rule->
active() ? Qt::Checked : Qt::Unchecked;
1050 if ( orientation == Qt::Horizontal && role == Qt::DisplayRole && section >= 0 && section < 7 )
1053 lst << tr(
"Label" ) << tr(
"Rule" ) << tr(
"Min. Scale" ) << tr(
"Max. Scale" ) << tr(
"Count" ) << tr(
"Duplicate Count" );
1054 return lst[section];
1056 else if ( orientation == Qt::Horizontal && role == Qt::ToolTipRole )
1060 return tr(
"Number of features in this rule." );
1062 else if ( section == 5 )
1064 return tr(
"Number of features in this rule which are also present in other rule(s)." );
1073 if (
parent.column() > 0 )
1078 return parentRule->
children().count();
1088 if ( hasIndex( row, column,
parent ) )
1092 return createIndex( row, column, childRule );
1094 return QModelIndex();
1099 if ( !
index.isValid() )
1100 return QModelIndex();
1106 return QModelIndex();
1109 int row = parentRule->
parent()->
children().indexOf( parentRule );
1111 return createIndex( row, 0, parentRule );
1116 if ( !
index.isValid() )
1121 if ( role == Qt::CheckStateRole )
1123 rule->
setActive( value.toInt() == Qt::Checked );
1128 if ( role != Qt::EditRole )
1131 switch (
index.column() )
1134 rule->
setLabel( value.toString() );
1155 return Qt::MoveAction;
1161 types << QStringLiteral(
"application/vnd.text.list" );
1167 QMimeData *
mimeData =
new QMimeData();
1168 QByteArray encodedData;
1170 QDataStream stream( &encodedData, QIODevice::WriteOnly );
1172 const auto constIndexes = indexes;
1173 for (
const QModelIndex &
index : constIndexes )
1176 if ( !
index.isValid() ||
index.column() != 0 )
1185 QDomElement rootElem = doc.createElement( QStringLiteral(
"rule_mime" ) );
1186 rootElem.setAttribute( QStringLiteral(
"type" ), QStringLiteral(
"renderer" ) );
1187 QDomElement rulesElem = rule->
save( doc, symbols );
1188 rootElem.appendChild( rulesElem );
1190 rootElem.appendChild( symbolsElem );
1191 doc.appendChild( rootElem );
1195 stream << doc.toString( -1 );
1198 mimeData->setData( QStringLiteral(
"application/vnd.text.list" ), encodedData );
1207 if ( ruleElem.hasAttribute( QStringLiteral(
"description" ) ) )
1208 ruleElem.setAttribute( QStringLiteral(
"label" ), ruleElem.attribute( QStringLiteral(
"description" ) ) );
1211 QDomElement childRuleElem = ruleElem.firstChildElement( QStringLiteral(
"rule" ) );
1212 while ( !childRuleElem.isNull() )
1215 childRuleElem = childRuleElem.nextSiblingElement( QStringLiteral(
"rule" ) );
1221 Qt::DropAction action,
int row,
int column,
const QModelIndex &parent )
1225 if ( action == Qt::IgnoreAction )
1228 if ( !
data->hasFormat( QStringLiteral(
"application/vnd.text.list" ) ) )
1231 if (
parent.column() > 0 )
1234 QByteArray encodedData =
data->data( QStringLiteral(
"application/vnd.text.list" ) );
1235 QDataStream stream( &encodedData, QIODevice::ReadOnly );
1244 while ( !stream.atEnd() )
1250 if ( !doc.setContent( text ) )
1252 QDomElement rootElem = doc.documentElement();
1253 if ( rootElem.tagName() != QLatin1String(
"rule_mime" ) )
1255 if ( rootElem.attribute( QStringLiteral(
"type" ) ) == QLatin1String(
"labeling" ) )
1256 rootElem.appendChild( doc.createElement( QStringLiteral(
"symbols" ) ) );
1257 QDomElement symbolsElem = rootElem.firstChildElement( QStringLiteral(
"symbols" ) );
1258 if ( symbolsElem.isNull() )
1261 QDomElement ruleElem = rootElem.firstChildElement( QStringLiteral(
"rule" ) );
1262 if ( rootElem.attribute( QStringLiteral(
"type" ) ) == QLatin1String(
"labeling" ) )
1275 if (
index.isValid() )
1284 if ( row < 0 || row >= parentRule->
children().count() )
1287 QgsDebugMsgLevel( QStringLiteral(
"Called: row %1 count %2 parent ~~%3~~" ).arg( row ).arg( count ).arg( parentRule->
dump() ), 2 );
1289 beginRemoveRows(
parent, row, row + count - 1 );
1291 for (
int i = 0; i < count; i++ )
1293 if ( row < parentRule->children().count() )
1301 QgsDebugError( QStringLiteral(
"trying to remove invalid index - this should not happen!" ) );
1313 beginInsertRows(
parent, before, before );
1315 QgsDebugMsgLevel( QStringLiteral(
"insert before %1 rule: %2" ).arg( before ).arg( newrule->
dump() ), 2 );
1331 emit dataChanged(
index( 0, 0, idx ),
1334 for (
int i = 0; i <
rowCount( idx ); i++ )
1343 if ( !
index.isValid() )
1364 beginInsertRows(
parent, row, row + count - 1 );
@ NoGeometry
Geometry is not required. It may still be returned if e.g. required for a filter condition.
static QString iconPath(const QString &iconFile)
Returns path to the desired icon file.
const QgsCategoryList & categories() const
Returns a list of all categories recognized by the renderer.
A generic dialog for building expression strings.
Single scope for storing variables and functions for use within a QgsExpressionContext.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
void appendScope(QgsExpressionContextScope *scope)
Appends a scope to the end of the context.
void setFeature(const QgsFeature &feature)
Convenience function for setting a feature for the context.
Class for parsing and evaluation of expressions (formerly called "search strings").
bool prepare(const QgsExpressionContext *context)
Gets the expression ready for evaluation - find out column indexes.
bool hasParserError() const
Returns true if an error occurred when parsing the input expression.
QString evalErrorString() const
Returns evaluation error.
QString parserErrorString() const
Returns parser error.
Wrapper for iterator of features from vector data provider or vector layer.
bool nextFeature(QgsFeature &f)
Fetch next feature and stores in f, returns true on success.
Abstract base class for all 2D vector feature renderers.
void copyRendererData(QgsFeatureRenderer *destRenderer) const
Clones generic renderer data to another renderer.
This class wraps a request for features to a vector layer (or directly its vector data provider).
QgsFeatureRequest & setFlags(Qgis::FeatureRequestFlags flags)
Sets flags that affect how features will be fetched.
QgsFeatureRequest & setSubsetOfAttributes(const QgsAttributeList &attrs)
Set a subset of attributes that will be fetched.
QgsFeatureRequest & setFilterExpression(const QString &expression)
Set the filter expression.
QgsFeatureRequest & setExpressionContext(const QgsExpressionContext &context)
Sets the expression context used to evaluate filter expressions.
QgsFeatureRequest & setNoAttributes()
Set that no attributes will be fetched.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
A vector feature renderer which uses numeric attributes to classify features into different ranges.
const QgsRangeList & ranges() const
Returns a list of all ranges used in the classification.
static void enableAutoGeometryRestore(QWidget *widget, const QString &key=QString())
Register the widget to allow its position to be automatically saved and restored when open and closed...
static void openHelp(const QString &key)
Opens help topic for the given help key using default system web browser.
The class stores information about one class/rule of a vector layer renderer in a unified way that ca...
The class is used as a container of context for various read/write operations on other objects.
Contains information about the context of a rendering operation.
QgsExpressionContext & expressionContext()
Gets the expression context.
void setExpressionContext(const QgsExpressionContext &context)
Sets the expression context.
void setRendererScale(double scale)
Sets the renderer map scale.
QgsRuleBasedRenderer::Rule * rule()
QgsRendererRulePropsDialog(QgsRuleBasedRenderer::Rule *rule, QgsVectorLayer *layer, QgsStyle *style, QWidget *parent=nullptr, const QgsSymbolWidgetContext &context=QgsSymbolWidgetContext())
Constructor for QgsRendererRulePropsDialog.
Tree model for the rules:
QgsRuleBasedRenderer::Rule * ruleForIndex(const QModelIndex &index) const
bool setData(const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
QPointer< QScreen > mScreen
QModelIndex index(int row, int column, const QModelIndex &parent=QModelIndex()) const override
bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override
void updateRule(const QModelIndex &parent, int row)
void willAddRules(const QModelIndex &parent, int count)
Qt::ItemFlags flags(const QModelIndex &index) const override
int rowCount(const QModelIndex &parent=QModelIndex()) const override
void setSymbol(const QModelIndex &index, QgsSymbol *symbol)
Sets the symbol for the rule at the specified index.
void clearFeatureCounts()
QStringList mimeTypes() const override
void removeRule(const QModelIndex &index)
int columnCount(const QModelIndex &=QModelIndex()) const override
Qt::DropActions supportedDropActions() const override
QgsRuleBasedRendererModel(QgsRuleBasedRenderer *renderer, QObject *parent, QScreen *screen=nullptr)
Constructor for QgsRuleBasedRendererModel, for the specified renderer.
void setFeatureCounts(const QHash< QgsRuleBasedRenderer::Rule *, QgsRuleBasedRendererCount > &countMap)
QgsRuleBasedRenderer * mR
QModelIndex parent(const QModelIndex &index) const override
QHash< QgsRuleBasedRenderer::Rule *, QgsRuleBasedRendererCount > mFeatureCountMap
QMimeData * mimeData(const QModelIndexList &indexes) const override
QVariant data(const QModelIndex &index, int role=Qt::DisplayRole) const override
QVariant headerData(int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
void insertRule(const QModelIndex &parent, int before, QgsRuleBasedRenderer::Rule *newrule)
bool removeRows(int row, int count, const QModelIndex &parent=QModelIndex()) override
void finishedAddingRules()
This class keeps data about a rules for rule-based renderer.
void setSymbol(QgsSymbol *sym)
Sets a new symbol (or nullptr). Deletes old symbol.
void removeChild(QgsRuleBasedRenderer::Rule *rule)
delete child rule
void insertChild(int i, QgsRuleBasedRenderer::Rule *rule)
add child rule, take ownership, sets this as parent
void setDescription(const QString &description)
Set a human readable description for this rule.
bool dependsOnScale() const
const QgsRuleBasedRenderer::RuleList & children() const
Returns all children rules of this rule.
double maximumScale() const
Returns the maximum map scale (i.e.
QgsRuleBasedRenderer::Rule * parent()
The parent rule.
bool isElse() const
Check if this rule is an ELSE rule.
QgsRuleBasedRenderer::Rule * clone() const
clone this rule, return new instance
void removeChildAt(int i)
delete child rule
void setMaximumScale(double scale)
Sets the maximum map scale (i.e.
void setActive(bool state)
Sets if this rule is active.
QDomElement save(QDomDocument &doc, QgsSymbolMap &symbolMap) const
double minimumScale() const
Returns the minimum map scale (i.e.
QString description() const
A human readable description for this rule.
void setMinimumScale(double scale)
Sets the minimum map scale (i.e.
void setFilterExpression(const QString &filterExp)
Set the expression used to check if a given feature shall be rendered with this rule.
void setLabel(const QString &label)
QString dump(int indent=0) const
Dump for debug purpose.
static QgsRuleBasedRenderer::Rule * create(QDomElement &ruleElem, QgsSymbolMap &symbolMap, bool reuseId=true)
Create a rule from an XML definition.
QString filterExpression() const
A filter that will check if this rule applies.
bool active() const
Returns if this rule is active.
static void refineRuleCategories(QgsRuleBasedRenderer::Rule *initialRule, QgsCategorizedSymbolRenderer *r)
take a rule and create a list of new rules based on the categories from categorized symbol renderer
static void refineRuleRanges(QgsRuleBasedRenderer::Rule *initialRule, QgsGraduatedSymbolRenderer *r)
take a rule and create a list of new rules based on the ranges from graduated symbol renderer
static QgsRuleBasedRenderer * convertFromRenderer(const QgsFeatureRenderer *renderer, QgsVectorLayer *layer=nullptr)
Creates a new QgsRuleBasedRenderer from an existing renderer.
static void refineRuleScales(QgsRuleBasedRenderer::Rule *initialRule, QList< int > scales)
take a rule and create a list of new rules with intervals of scales given by the passed scale denomin...
QList< QgsRuleBasedRenderer::Rule * > RuleList
QgsRuleBasedRenderer::Rule * rootRule()
static QString toString(double scale)
Helper function to convert a scale double to scale string.
Stores properties relating to a screen.
This class is a composition of two QSettings instances:
QVariant value(const QString &key, const QVariant &defaultValue=QVariant(), Section section=NoSection) const
Returns the value for setting key.
void setValue(const QString &key, const QVariant &value, QgsSettings::Section section=QgsSettings::NoSection)
Sets the value of setting key to value.
static QgsSymbol * symbolFromMimeData(const QMimeData *data)
Attempts to parse mime data as a symbol.
static QgsSymbolMap loadSymbols(QDomElement &element, const QgsReadWriteContext &context)
Reads a collection of symbols from XML and returns them in a map. Caller is responsible for deleting ...
static QDomElement saveSymbols(QgsSymbolMap &symbols, const QString &tagName, QDomDocument &doc, const QgsReadWriteContext &context)
Writes a collection of symbols to XML with specified tagName for the top-level element.
static QIcon symbolPreviewIcon(const QgsSymbol *symbol, QSize size, int padding=0, QgsLegendPatchShape *shape=nullptr, const QgsScreenProperties &screen=QgsScreenProperties())
Returns an icon preview for a color ramp.
A dialog which allows the user to modify the rendering order of symbol layers.
QgsLegendSymbolList symbolLevels() const
Returns the current legend symbols with rendering passes set, as defined in the widget.
bool usingLevels() const
Returns whether the level ordering is enabled.
void setForceOrderingEnabled(bool enabled)
Contains settings which reflect the context in which a symbol (or renderer) widget is shown,...
QList< QgsExpressionContextScope > additionalExpressionContextScopes() const
Returns the list of additional expression context scopes to show as available within the layer.
QList< QgsExpressionContextScope * > globalProjectAtlasMapLayerScopes(const QgsMapLayer *layer) const
Returns list of scopes: global, project, atlas, map, layer.
QgsMapCanvas * mapCanvas() const
Returns the map canvas associated with the widget.
Abstract base class for all rendered symbols.
virtual QgsSymbol * clone() const =0
Returns a deep copy of this symbol.
int symbolLayerCount() const
Returns the total number of symbol layers contained in the symbol.
static QgsSymbol * defaultSymbol(Qgis::GeometryType geomType)
Returns a new default symbol for the specified geometry type.
Represents a vector layer which manages a vector based data sets.
long long featureCount(const QString &legendKey) const
Number of features rendered with specified legend key.
QgsFeatureIterator getFeatures(const QgsFeatureRequest &request=QgsFeatureRequest()) const FINAL
Queries the layer for features specified in request.
Q_INVOKABLE Qgis::GeometryType geometryType() const
Returns point, line or polygon.
int scaleIconSize(int standardSize)
Scales an icon size to compensate for display pixel density, making the icon size hi-dpi friendly,...
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)
QMap< QString, QgsSymbol * > QgsSymbolMap