void QgsGraduatedSymbolRendererV2Widget::updateUiFromRenderer( bool updateCount )
{
disconnectUpdateHandlers();
updateGraduatedSymbolIcon();
// update UI from the graduated renderer (update combo boxes, view)
if ( mRenderer->mode() < cboGraduatedMode->count() )
cboGraduatedMode->setCurrentIndex( mRenderer->mode() );
// Only update class count if different - otherwise typing value gets very messy
int nclasses = mRenderer->ranges().count();
if ( nclasses && updateCount )
spinGraduatedClasses->setValue( mRenderer->ranges().count() );
// set column
QString attrName = mRenderer->classAttribute();
mExpressionWidget->setField( attrName );
mHistogramWidget->setSourceFieldExp( attrName );
// set source symbol
if ( mRenderer->sourceSymbol() )
{
delete mGraduatedSymbol;
mGraduatedSymbol = mRenderer->sourceSymbol()->clone();
updateGraduatedSymbolIcon();
}
mModel->setRenderer( mRenderer );
viewGraduated->setModel( mModel );
if ( mGraduatedSymbol )
{
mSizeUnitWidget->blockSignals( true );
mSizeUnitWidget->setUnit( mGraduatedSymbol->outputUnit() );
mSizeUnitWidget->setMapUnitScale( mGraduatedSymbol->mapUnitScale() );
mSizeUnitWidget->blockSignals( false );
}
// set source color ramp
methodComboBox->blockSignals( true );
if ( mRenderer->graduatedMethod() == QgsGraduatedSymbolRendererV2::GraduatedColor )
{
methodComboBox->setCurrentIndex( 0 );
if ( mRenderer->sourceColorRamp() )
cboGraduatedColorRamp->setSourceColorRamp( mRenderer->sourceColorRamp() );
cbxInvertedColorRamp->setChecked( mRenderer->invertedColorRamp() );
}
else
{
methodComboBox->setCurrentIndex( 1 );
if ( !mRenderer->ranges().isEmpty() ) // avoid overiding default size with zeros
{
minSizeSpinBox->setValue( mRenderer->minSymbolSize() );
maxSizeSpinBox->setValue( mRenderer->maxSymbolSize() );
}
}
mMethodStackedWidget->setCurrentIndex( methodComboBox->currentIndex() );
methodComboBox->blockSignals( false );
QgsRendererRangeV2LabelFormat labelFormat = mRenderer->labelFormat();
txtLegendFormat->setText( labelFormat.format() );
spinPrecision->setValue( labelFormat.precision() );
cbxTrimTrailingZeroes->setChecked( labelFormat.trimTrailingZeroes() );
viewGraduated->resizeColumnToContents( 0 );
viewGraduated->resizeColumnToContents( 1 );
viewGraduated->resizeColumnToContents( 2 );
mHistogramWidget->refresh();
connectUpdateHandlers();
emit widgetChanged();
}
void QgsGraduatedSymbolRendererWidget::updateUiFromRenderer( bool updateCount )
{
disconnectUpdateHandlers();
updateGraduatedSymbolIcon();
spinSymmetryPointForOtherMethods->setShowClearButton( false );
// update UI from the graduated renderer (update combo boxes, view)
if ( cboGraduatedMode->findData( mRenderer->mode() ) >= 0 )
{
cboGraduatedMode->setCurrentIndex( cboGraduatedMode->findData( mRenderer->mode() ) );
}
// symmetric classification
const QgsGraduatedSymbolRenderer::Mode cboMode = static_cast< QgsGraduatedSymbolRenderer::Mode >( cboGraduatedMode->currentData().toInt() );
switch ( cboMode )
{
case QgsGraduatedSymbolRenderer::EqualInterval:
case QgsGraduatedSymbolRenderer::StdDev:
{
mGroupBoxSymmetric->setVisible( true );
cbxAstride->setVisible( true );
cboSymmetryPointForPretty->setVisible( false );
spinSymmetryPointForOtherMethods->setVisible( true );
spinSymmetryPointForOtherMethods->setValue( mRenderer->symmetryPoint() );
break;
}
case QgsGraduatedSymbolRenderer::Pretty:
{
mGroupBoxSymmetric->setVisible( true );
cbxAstride->setVisible( true );
spinSymmetryPointForOtherMethods->setVisible( false );
cboSymmetryPointForPretty->setVisible( true );
cboSymmetryPointForPretty->clear();
cboSymmetryPointForPretty->addItems( mRenderer->listForCboPrettyBreaks() );
// replace the combobox on the good old value
cboSymmetryPointForPretty->setCurrentText( QString::number( mRenderer->symmetryPoint(), 'f', 2 ) );
break;
}
case QgsGraduatedSymbolRenderer::Quantile:
case QgsGraduatedSymbolRenderer::Jenks:
case QgsGraduatedSymbolRenderer::Custom:
{
mGroupBoxSymmetric->setVisible( false );
cbxAstride->setVisible( false );
cboSymmetryPointForPretty->setVisible( false );
spinSymmetryPointForOtherMethods->setVisible( false );
spinSymmetryPointForOtherMethods->setValue( mRenderer->symmetryPoint() );
break;
}
}
if ( mRenderer->useSymmetricMode() )
{
mGroupBoxSymmetric->setChecked( true );
spinSymmetryPointForOtherMethods->setEnabled( true );
cbxAstride->setEnabled( true );
cboSymmetryPointForPretty->setEnabled( true );
}
else
{
mGroupBoxSymmetric->setChecked( false );
spinSymmetryPointForOtherMethods->setEnabled( false );
cbxAstride->setEnabled( false );
cboSymmetryPointForPretty->setEnabled( false );
}
if ( mRenderer->astride() )
cbxAstride->setChecked( true );
else
cbxAstride->setChecked( false );
// Only update class count if different - otherwise typing value gets very messy
int nclasses = mRenderer->ranges().count();
if ( nclasses && updateCount )
spinGraduatedClasses->setValue( mRenderer->ranges().count() );
// set column
QString attrName = mRenderer->classAttribute();
mExpressionWidget->setField( attrName );
mHistogramWidget->setSourceFieldExp( attrName );
// set source symbol
if ( mRenderer->sourceSymbol() )
{
mGraduatedSymbol.reset( mRenderer->sourceSymbol()->clone() );
updateGraduatedSymbolIcon();
}
mModel->setRenderer( mRenderer.get() );
viewGraduated->setModel( mModel );
if ( mGraduatedSymbol )
{
mSizeUnitWidget->blockSignals( true );
mSizeUnitWidget->setUnit( mGraduatedSymbol->outputUnit() );
mSizeUnitWidget->setMapUnitScale( mGraduatedSymbol->mapUnitScale() );
mSizeUnitWidget->blockSignals( false );
}
// set source color ramp
methodComboBox->blockSignals( true );
if ( mRenderer->graduatedMethod() == QgsGraduatedSymbolRenderer::GraduatedColor )
{
methodComboBox->setCurrentIndex( 0 );
if ( mRenderer->sourceColorRamp() )
{
btnColorRamp->setColorRamp( mRenderer->sourceColorRamp() );
}
}
else
{
methodComboBox->setCurrentIndex( 1 );
if ( !mRenderer->ranges().isEmpty() ) // avoid overriding default size with zeros
{
minSizeSpinBox->setValue( mRenderer->minSymbolSize() );
maxSizeSpinBox->setValue( mRenderer->maxSymbolSize() );
}
}
toggleMethodWidgets( methodComboBox->currentIndex() );
methodComboBox->blockSignals( false );
QgsRendererRangeLabelFormat labelFormat = mRenderer->labelFormat();
txtLegendFormat->setText( labelFormat.format() );
spinPrecision->setValue( labelFormat.precision() );
cbxTrimTrailingZeroes->setChecked( labelFormat.trimTrailingZeroes() );
viewGraduated->resizeColumnToContents( 0 );
viewGraduated->resizeColumnToContents( 1 );
viewGraduated->resizeColumnToContents( 2 );
mHistogramWidget->refresh();
connectUpdateHandlers();
emit widgetChanged();
}
QgsGraduatedSymbolRendererV2Widget::QgsGraduatedSymbolRendererV2Widget( QgsVectorLayer* layer, QgsStyleV2* style, QgsFeatureRendererV2* renderer )
: QgsRendererV2Widget( layer, style )
, mRenderer( nullptr )
, mModel( nullptr )
{
// try to recognize the previous renderer
// (null renderer means "no previous renderer")
if ( renderer )
{
mRenderer = QgsGraduatedSymbolRendererV2::convertFromRenderer( renderer );
}
if ( !mRenderer )
{
mRenderer = new QgsGraduatedSymbolRendererV2( "", QgsRangeList() );
}
// setup user interface
setupUi( this );
mModel = new QgsGraduatedSymbolRendererV2Model( this );
mExpressionWidget->setFilters( QgsFieldProxyModel::Numeric | QgsFieldProxyModel::Date );
mExpressionWidget->setLayer( mLayer );
mSizeUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << QgsUnitTypes::RenderMillimeters << QgsUnitTypes::RenderMapUnits << QgsUnitTypes::RenderPixels );
cboGraduatedColorRamp->populate( mStyle );
spinPrecision->setMinimum( QgsRendererRangeV2LabelFormat::MinPrecision );
spinPrecision->setMaximum( QgsRendererRangeV2LabelFormat::MaxPrecision );
// set project default color ramp
QString defaultColorRamp = QgsProject::instance()->readEntry( "DefaultStyles", "/ColorRamp", "" );
if ( defaultColorRamp != "" )
{
int index = cboGraduatedColorRamp->findText( defaultColorRamp, Qt::MatchCaseSensitive );
if ( index >= 0 )
cboGraduatedColorRamp->setCurrentIndex( index );
}
viewGraduated->setStyle( new QgsGraduatedSymbolRendererV2ViewStyle( viewGraduated->style() ) );
mGraduatedSymbol = QgsSymbolV2::defaultSymbol( mLayer->geometryType() );
methodComboBox->blockSignals( true );
methodComboBox->addItem( "Color" );
if ( mGraduatedSymbol->type() == QgsSymbolV2::Marker )
{
methodComboBox->addItem( "Size" );
minSizeSpinBox->setValue( 1 );
maxSizeSpinBox->setValue( 8 );
}
else if ( mGraduatedSymbol->type() == QgsSymbolV2::Line )
{
methodComboBox->addItem( "Size" );
minSizeSpinBox->setValue( .1 );
maxSizeSpinBox->setValue( 2 );
}
methodComboBox->blockSignals( false );
connect( mExpressionWidget, SIGNAL( fieldChanged( QString ) ), this, SLOT( graduatedColumnChanged( QString ) ) );
connect( viewGraduated, SIGNAL( doubleClicked( const QModelIndex & ) ), this, SLOT( rangesDoubleClicked( const QModelIndex & ) ) );
connect( viewGraduated, SIGNAL( clicked( const QModelIndex & ) ), this, SLOT( rangesClicked( const QModelIndex & ) ) );
connect( viewGraduated, SIGNAL( customContextMenuRequested( const QPoint& ) ), this, SLOT( contextMenuViewCategories( const QPoint& ) ) );
connect( btnGraduatedClassify, SIGNAL( clicked() ), this, SLOT( classifyGraduated() ) );
connect( btnChangeGraduatedSymbol, SIGNAL( clicked() ), this, SLOT( changeGraduatedSymbol() ) );
connect( btnGraduatedDelete, SIGNAL( clicked() ), this, SLOT( deleteClasses() ) );
connect( btnDeleteAllClasses, SIGNAL( clicked() ), this, SLOT( deleteAllClasses() ) );
connect( btnGraduatedAdd, SIGNAL( clicked() ), this, SLOT( addClass() ) );
connect( cbxLinkBoundaries, SIGNAL( toggled( bool ) ), this, SLOT( toggleBoundariesLink( bool ) ) );
connect( mSizeUnitWidget, SIGNAL( changed() ), this, SLOT( on_mSizeUnitWidget_changed() ) );
connectUpdateHandlers();
// initialize from previously set renderer
updateUiFromRenderer();
// menus for data-defined rotation/size
QMenu* advMenu = new QMenu;
advMenu->addAction( tr( "Symbol levels..." ), this, SLOT( showSymbolLevels() ) );
btnAdvanced->setMenu( advMenu );
mHistogramWidget->setLayer( mLayer );
mHistogramWidget->setRenderer( mRenderer );
connect( mHistogramWidget, SIGNAL( rangesModified( bool ) ), this, SLOT( refreshRanges( bool ) ) );
connect( mExpressionWidget, SIGNAL( fieldChanged( QString ) ), mHistogramWidget, SLOT( setSourceFieldExp( QString ) ) );
mExpressionWidget->registerGetExpressionContextCallback( &_getExpressionContext, this );
}
QgsGraduatedSymbolRendererWidget::QgsGraduatedSymbolRendererWidget( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer )
: QgsRendererWidget( layer, style )
{
// try to recognize the previous renderer
// (null renderer means "no previous renderer")
if ( renderer )
{
mRenderer.reset( QgsGraduatedSymbolRenderer::convertFromRenderer( renderer ) );
}
if ( !mRenderer )
{
mRenderer = qgis::make_unique< QgsGraduatedSymbolRenderer >( QString(), QgsRangeList() );
}
// setup user interface
setupUi( this );
cboGraduatedMode->addItem( tr( "Equal Interval" ), QgsGraduatedSymbolRenderer::EqualInterval );
cboGraduatedMode->addItem( tr( "Quantile (Equal Count)" ), QgsGraduatedSymbolRenderer::Quantile );
cboGraduatedMode->addItem( tr( "Natural Breaks (Jenks)" ), QgsGraduatedSymbolRenderer::Jenks );
cboGraduatedMode->addItem( tr( "Standard Deviation" ), QgsGraduatedSymbolRenderer::StdDev );
cboGraduatedMode->addItem( tr( "Pretty Breaks" ), QgsGraduatedSymbolRenderer::Pretty );
connect( methodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsGraduatedSymbolRendererWidget::methodComboBox_currentIndexChanged );
this->layout()->setContentsMargins( 0, 0, 0, 0 );
mModel = new QgsGraduatedSymbolRendererModel( this );
mExpressionWidget->setFilters( QgsFieldProxyModel::Numeric | QgsFieldProxyModel::Date );
mExpressionWidget->setLayer( mLayer );
mSizeUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << QgsUnitTypes::RenderMillimeters << QgsUnitTypes::RenderMapUnits << QgsUnitTypes::RenderPixels
<< QgsUnitTypes::RenderPoints << QgsUnitTypes::RenderInches );
spinPrecision->setMinimum( QgsRendererRangeLabelFormat::MIN_PRECISION );
spinPrecision->setMaximum( QgsRendererRangeLabelFormat::MAX_PRECISION );
btnColorRamp->setShowRandomColorRamp( true );
// set project default color ramp
QString defaultColorRamp = QgsProject::instance()->readEntry( QStringLiteral( "DefaultStyles" ), QStringLiteral( "/ColorRamp" ), QString() );
if ( !defaultColorRamp.isEmpty() )
{
btnColorRamp->setColorRampFromName( defaultColorRamp );
}
else
{
QgsColorRamp *ramp = new QgsGradientColorRamp( QColor( 255, 255, 255 ), QColor( 255, 0, 0 ) );
btnColorRamp->setColorRamp( ramp );
delete ramp;
}
viewGraduated->setStyle( new QgsGraduatedSymbolRendererViewStyle( viewGraduated ) );
mGraduatedSymbol.reset( QgsSymbol::defaultSymbol( mLayer->geometryType() ) );
methodComboBox->blockSignals( true );
methodComboBox->addItem( QStringLiteral( "Color" ) );
if ( mGraduatedSymbol->type() == QgsSymbol::Marker )
{
methodComboBox->addItem( QStringLiteral( "Size" ) );
minSizeSpinBox->setValue( 1 );
maxSizeSpinBox->setValue( 8 );
}
else if ( mGraduatedSymbol->type() == QgsSymbol::Line )
{
methodComboBox->addItem( QStringLiteral( "Size" ) );
minSizeSpinBox->setValue( .1 );
maxSizeSpinBox->setValue( 2 );
}
methodComboBox->blockSignals( false );
connect( mExpressionWidget, static_cast < void ( QgsFieldExpressionWidget::* )( const QString & ) >( &QgsFieldExpressionWidget::fieldChanged ), this, &QgsGraduatedSymbolRendererWidget::graduatedColumnChanged );
connect( viewGraduated, &QAbstractItemView::doubleClicked, this, &QgsGraduatedSymbolRendererWidget::rangesDoubleClicked );
connect( viewGraduated, &QAbstractItemView::clicked, this, &QgsGraduatedSymbolRendererWidget::rangesClicked );
connect( viewGraduated, &QTreeView::customContextMenuRequested, this, &QgsGraduatedSymbolRendererWidget::contextMenuViewCategories );
connect( btnGraduatedClassify, &QAbstractButton::clicked, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
connect( btnChangeGraduatedSymbol, &QAbstractButton::clicked, this, &QgsGraduatedSymbolRendererWidget::changeGraduatedSymbol );
connect( btnGraduatedDelete, &QAbstractButton::clicked, this, &QgsGraduatedSymbolRendererWidget::deleteClasses );
connect( btnDeleteAllClasses, &QAbstractButton::clicked, this, &QgsGraduatedSymbolRendererWidget::deleteAllClasses );
connect( btnGraduatedAdd, &QAbstractButton::clicked, this, &QgsGraduatedSymbolRendererWidget::addClass );
connect( cbxLinkBoundaries, &QAbstractButton::toggled, this, &QgsGraduatedSymbolRendererWidget::toggleBoundariesLink );
connect( mSizeUnitWidget, &QgsUnitSelectionWidget::changed, this, &QgsGraduatedSymbolRendererWidget::mSizeUnitWidget_changed );
connectUpdateHandlers();
// initialize from previously set renderer
updateUiFromRenderer();
// default to collapsed symmetric group for ui simplicity
mGroupBoxSymmetric->setCollapsed( true ); //
// menus for data-defined rotation/size
QMenu *advMenu = new QMenu( this );
advMenu->addAction( tr( "Symbol Levels…" ), this, SLOT( showSymbolLevels() ) );
if ( mGraduatedSymbol->type() == QgsSymbol::Marker )
{
QAction *actionDdsLegend = advMenu->addAction( tr( "Data-defined Size Legend…" ) );
// only from Qt 5.6 there is convenience addAction() with new style connection
connect( actionDdsLegend, &QAction::triggered, this, &QgsGraduatedSymbolRendererWidget::dataDefinedSizeLegend );
}
btnAdvanced->setMenu( advMenu );
mHistogramWidget->setLayer( mLayer );
mHistogramWidget->setRenderer( mRenderer.get() );
connect( mHistogramWidget, &QgsGraduatedHistogramWidget::rangesModified, this, &QgsGraduatedSymbolRendererWidget::refreshRanges );
connect( mExpressionWidget, static_cast < void ( QgsFieldExpressionWidget::* )( const QString & ) >( &QgsFieldExpressionWidget::fieldChanged ), mHistogramWidget, &QgsHistogramWidget::setSourceFieldExp );
mExpressionWidget->registerExpressionContextGenerator( this );
}
