void QgsGraduatedSymbolRendererV2Widget::updateUiFromRenderer()
{
updateGraduatedSymbolIcon();
// update UI from the graduated renderer (update combo boxes, view)
if ( mRenderer->mode() < cboGraduatedMode->count() )
cboGraduatedMode->setCurrentIndex( mRenderer->mode() );
if ( mRenderer->ranges().count() )
spinGraduatedClasses->setValue( mRenderer->ranges().count() );
// set column
disconnect( mExpressionWidget, SIGNAL( fieldChanged( QString ) ), this, SLOT( graduatedColumnChanged( QString ) ) );
QString attrName = mRenderer->classAttribute();
mExpressionWidget->setField( attrName );
connect( mExpressionWidget, SIGNAL( fieldChanged( QString ) ), this, SLOT( graduatedColumnChanged( QString ) ) );
// set source symbol
if ( mRenderer->sourceSymbol() )
{
delete mGraduatedSymbol;
mGraduatedSymbol = mRenderer->sourceSymbol()->clone();
updateGraduatedSymbolIcon();
}
// set source color ramp
if ( mRenderer->sourceColorRamp() )
{
cboGraduatedColorRamp->setSourceColorRamp( mRenderer->sourceColorRamp() );
cbxInvertedColorRamp->setChecked( mRenderer->invertedColorRamp() );
}
}
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 );
}
QgsGraduatedSymbolRendererV2Widget::QgsGraduatedSymbolRendererV2Widget( QgsVectorLayer* layer, QgsStyleV2* style, QgsFeatureRendererV2* renderer )
: QgsRendererV2Widget( layer, style )
, mRenderer( 0 )
, mModel( 0 )
{
// try to recognize the previous renderer
// (null renderer means "no previous renderer")
if ( !renderer || renderer->type() != "graduatedSymbol" )
{
// we're not going to use it - so let's delete the renderer
delete renderer;
mRenderer = new QgsGraduatedSymbolRendererV2( "", QgsRangeList() );
}
else
{
mRenderer = static_cast<QgsGraduatedSymbolRendererV2*>( renderer );
}
// setup user interface
setupUi( this );
mExpressionWidget->setFilters( QgsFieldProxyModel::Numeric | QgsFieldProxyModel::Date );
mExpressionWidget->setLayer( mLayer );
cboGraduatedColorRamp->populate( mStyle );
// 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 );
}
mModel = new QgsGraduatedSymbolRendererV2Model( this );
mModel->setRenderer( mRenderer );
viewGraduated->setModel( mModel );
viewGraduated->resizeColumnToContents( 0 );
viewGraduated->resizeColumnToContents( 1 );
viewGraduated->resizeColumnToContents( 2 );
viewGraduated->setStyle( new QgsGraduatedSymbolRendererV2ViewStyle( viewGraduated->style() ) );
mGraduatedSymbol = QgsSymbolV2::defaultSymbol( mLayer->geometryType() );
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( mModel, SIGNAL( rowsMoved() ), this, SLOT( rowsMoved() ) );
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() ) );
// initialize from previously set renderer
updateUiFromRenderer();
connect( spinGraduatedClasses, SIGNAL( valueChanged( int ) ) , this, SLOT( classifyGraduated() ) );
connect( cboGraduatedMode, SIGNAL( currentIndexChanged( int ) ) , this, SLOT( classifyGraduated() ) );
connect( cboGraduatedColorRamp, SIGNAL( currentIndexChanged( int ) ) , this, SLOT( reapplyColorRamp() ) );
// menus for data-defined rotation/size
QMenu* advMenu = new QMenu;
advMenu->addAction( tr( "Symbol levels..." ), this, SLOT( showSymbolLevels() ) );
mDataDefinedMenus = new QgsRendererV2DataDefinedMenus( advMenu, mLayer,
mRenderer->rotationField(), mRenderer->sizeScaleField(), mRenderer->scaleMethod() );
connect( mDataDefinedMenus, SIGNAL( rotationFieldChanged( QString ) ), this, SLOT( rotationFieldChanged( QString ) ) );
connect( mDataDefinedMenus, SIGNAL( sizeScaleFieldChanged( QString ) ), this, SLOT( sizeScaleFieldChanged( QString ) ) );
connect( mDataDefinedMenus, SIGNAL( scaleMethodChanged( QgsSymbolV2::ScaleMethod ) ), this, SLOT( scaleMethodChanged( QgsSymbolV2::ScaleMethod ) ) );
btnAdvanced->setMenu( advMenu );
}
