Example #1
0
QgsGlowWidget::QgsGlowWidget( QWidget *parent )
    : QgsPaintEffectWidget( parent )
    , mEffect( NULL )
{
  setupUi( this );

  mColorBtn->setAllowAlpha( false );
  mColorBtn->setColorDialogTitle( tr( "Select glow color" ) );
  mColorBtn->setContext( "symbology" );

  mSpreadUnitWidget->setUnits( QgsSymbolV2::OutputUnitList() << QgsSymbolV2::MM << QgsSymbolV2::Pixel << QgsSymbolV2::MapUnit );

  mRampComboBox->populate( QgsStyleV2::defaultStyle() );
  mRampComboBox->setShowGradientOnly( true );
  connect( mRampComboBox, SIGNAL( currentIndexChanged( int ) ), this, SLOT( applyColorRamp() ) );
  connect( mRampComboBox, SIGNAL( sourceRampEdited() ), this, SLOT( applyColorRamp() ) );
  connect( mButtonEditRamp, SIGNAL( clicked() ), mRampComboBox, SLOT( editSourceRamp() ) );

  connect( radioSingleColor, SIGNAL( toggled( bool ) ), this, SLOT( colorModeChanged() ) );

  initGui();
}
QgsCategorizedSymbolRendererV2Widget::QgsCategorizedSymbolRendererV2Widget( 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 = QgsCategorizedSymbolRendererV2::convertFromRenderer( renderer );
  }
  if ( !mRenderer )
  {
    mRenderer = new QgsCategorizedSymbolRendererV2( "", QgsCategoryList() );
  }

  QString attrName = mRenderer->classAttribute();
  mOldClassificationAttribute = attrName;

  // setup user interface
  setupUi( this );

  mExpressionWidget->setLayer( mLayer );

  cboCategorizedColorRamp->populate( mStyle );
  int randomIndex = cboCategorizedColorRamp->findText( tr( "Random colors" ) );
  if ( randomIndex != -1 )
  {
    cboCategorizedColorRamp->setCurrentIndex( randomIndex );
    mButtonEditRamp->setEnabled( false );
  }

  // set project default color ramp
  QString defaultColorRamp = QgsProject::instance()->readEntry( "DefaultStyles", "/ColorRamp", "" );
  if ( defaultColorRamp != "" )
  {
    int index = cboCategorizedColorRamp->findText( defaultColorRamp, Qt::MatchCaseSensitive );
    if ( index >= 0 )
      cboCategorizedColorRamp->setCurrentIndex( index );
  }

  mCategorizedSymbol = QgsSymbolV2::defaultSymbol( mLayer->geometryType() );

  mModel = new QgsCategorizedSymbolRendererV2Model( this );
  mModel->setRenderer( mRenderer );

  // update GUI from renderer
  updateUiFromRenderer();

  viewCategories->setModel( mModel );
  viewCategories->resizeColumnToContents( 0 );
  viewCategories->resizeColumnToContents( 1 );
  viewCategories->resizeColumnToContents( 2 );

  viewCategories->setStyle( new QgsCategorizedSymbolRendererV2ViewStyle( viewCategories->style() ) );

  connect( mModel, SIGNAL( rowsMoved() ), this, SLOT( rowsMoved() ) );
  connect( mModel, SIGNAL( dataChanged( QModelIndex, QModelIndex ) ), this, SIGNAL( widgetChanged() ) );

  connect( mExpressionWidget, SIGNAL( fieldChanged( QString ) ), this, SLOT( categoryColumnChanged( QString ) ) );

  connect( viewCategories, SIGNAL( doubleClicked( const QModelIndex & ) ), this, SLOT( categoriesDoubleClicked( const QModelIndex & ) ) );
  connect( viewCategories, SIGNAL( customContextMenuRequested( const QPoint& ) ),  this, SLOT( contextMenuViewCategories( const QPoint& ) ) );

  connect( btnChangeCategorizedSymbol, SIGNAL( clicked() ), this, SLOT( changeCategorizedSymbol() ) );
  connect( btnAddCategories, SIGNAL( clicked() ), this, SLOT( addCategories() ) );
  connect( btnDeleteCategories, SIGNAL( clicked() ), this, SLOT( deleteCategories() ) );
  connect( btnDeleteAllCategories, SIGNAL( clicked() ), this, SLOT( deleteAllCategories() ) );
  connect( btnAddCategory, SIGNAL( clicked() ), this, SLOT( addCategory() ) );
  connect( cbxInvertedColorRamp, SIGNAL( toggled( bool ) ), this, SLOT( applyColorRamp() ) );
  connect( cboCategorizedColorRamp, SIGNAL( currentIndexChanged( int ) ), this, SLOT( applyColorRamp() ) );
  connect( cboCategorizedColorRamp, SIGNAL( sourceRampEdited() ), this, SLOT( applyColorRamp() ) );
  connect( mButtonEditRamp, SIGNAL( clicked() ), cboCategorizedColorRamp, SLOT( editSourceRamp() ) );

  // menus for data-defined rotation/size
  QMenu* advMenu = new QMenu;

  advMenu->addAction( tr( "Match to saved symbols" ), this, SLOT( matchToSymbolsFromLibrary() ) );
  advMenu->addAction( tr( "Match to symbols from file..." ), this, SLOT( matchToSymbolsFromXml() ) );
  advMenu->addAction( tr( "Symbol levels..." ), this, SLOT( showSymbolLevels() ) );

  btnAdvanced->setMenu( advMenu );

  mExpressionWidget->registerGetExpressionContextCallback( &_getExpressionContext, this );
}
QgsHeatmapRendererWidget::QgsHeatmapRendererWidget( 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::Point )
  {
    //setup blank dialog
    mRenderer = nullptr;
    QGridLayout* layout = new QGridLayout( this );
    QLabel* label = new QLabel( tr( "The heatmap renderer only applies to point and multipoint layers. \n"
                                    "'%1' is not a point layer and cannot be rendered as a heatmap." )
                                .arg( layer->name() ), this );
    layout->addWidget( label );
    return;
  }

  setupUi( this );
  mRadiusUnitWidget->setUnits( QgsSymbolV2::OutputUnitList() << QgsSymbolV2::MM << QgsSymbolV2::Pixel << QgsSymbolV2::MapUnit );
  mWeightExpressionWidget->registerGetExpressionContextCallback( &_getExpressionContext, this );

  if ( renderer )
  {
    mRenderer = QgsHeatmapRenderer::convertFromRenderer( renderer );
  }
  if ( !mRenderer )
  {
    mRenderer = new QgsHeatmapRenderer();
  }

  mRampComboBox->setShowGradientOnly( true );
  mRampComboBox->populate( QgsStyleV2::defaultStyle() );
  connect( mRampComboBox, SIGNAL( currentIndexChanged( int ) ), this, SLOT( applyColorRamp() ) );
  connect( mRampComboBox, SIGNAL( sourceRampEdited() ), this, SLOT( applyColorRamp() ) );
  connect( mButtonEditRamp, SIGNAL( clicked() ), mRampComboBox, SLOT( editSourceRamp() ) );

  if ( mRenderer->colorRamp() )
  {
    mRampComboBox->blockSignals( true );
    mRampComboBox->setSourceColorRamp( mRenderer->colorRamp() );
    mRampComboBox->blockSignals( false );
  }
  mRadiusSpinBox->blockSignals( true );
  mRadiusSpinBox->setValue( mRenderer->radius() );
  mRadiusSpinBox->blockSignals( false );
  mRadiusUnitWidget->blockSignals( true );
  mRadiusUnitWidget->setUnit( mRenderer->radiusUnit() );
  mRadiusUnitWidget->setMapUnitScale( mRenderer->radiusMapUnitScale() );
  mRadiusUnitWidget->blockSignals( false );
  mMaxSpinBox->blockSignals( true );
  mMaxSpinBox->setValue( mRenderer->maximumValue() );
  mMaxSpinBox->blockSignals( false );
  mQualitySlider->blockSignals( true );
  mQualitySlider->setValue( mRenderer->renderQuality() );
  mQualitySlider->blockSignals( false );
  mInvertCheckBox->blockSignals( true );
  mInvertCheckBox->setChecked( mRenderer->invertRamp() );
  mInvertCheckBox->blockSignals( false );

  mWeightExpressionWidget->setLayer( layer );
  mWeightExpressionWidget->setField( mRenderer->weightExpression() );
  connect( mWeightExpressionWidget, SIGNAL( fieldChanged( QString ) ), this, SLOT( weightExpressionChanged( QString ) ) );
}