コード例 #1
0
QgsCategorizedSymbolRendererV2Widget::QgsCategorizedSymbolRendererV2Widget( 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 )
  {
    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 );
  }

  // 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( 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() ) );

  // 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 );
}
コード例 #2
0
QgsCategorizedSymbolRendererWidget::QgsCategorizedSymbolRendererWidget( QgsVectorLayer* layer, QgsStyle* style, QgsFeatureRenderer* renderer )
    : QgsRendererWidget( layer, style )
    , mRenderer( nullptr )
    , mModel( nullptr )
{

  // try to recognize the previous renderer
  // (null renderer means "no previous renderer")
  if ( renderer )
  {
    mRenderer = QgsCategorizedSymbolRenderer::convertFromRenderer( renderer );
  }
  if ( !mRenderer )
  {
    mRenderer = new QgsCategorizedSymbolRenderer( QLatin1String( "" ), 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( QStringLiteral( "DefaultStyles" ), QStringLiteral( "/ColorRamp" ), QLatin1String( "" ) );
  if ( defaultColorRamp != QLatin1String( "" ) )
  {
    int index = cboCategorizedColorRamp->findText( defaultColorRamp, Qt::MatchCaseSensitive );
    if ( index >= 0 )
      cboCategorizedColorRamp->setCurrentIndex( index );
  }

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

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

  // update GUI from renderer
  updateUiFromRenderer();

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

  viewCategories->setStyle( new QgsCategorizedSymbolRendererViewStyle( 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->registerExpressionContextGenerator( this );
}