C++ (Cpp) displayExpressionChanged示例

示例#1

文件： qgsdualview.cpp 项目： wongjimsan/QGIS

QgsDualView::QgsDualView( QWidget* parent )
    : QStackedWidget( parent )
    , mEditorContext()
    , mMasterModel( nullptr )
    , mFilterModel( nullptr )
    , mFeatureListModel( nullptr )
    , mAttributeForm( nullptr )
    , mHorizontalHeaderMenu( nullptr )
    , mLayerCache( nullptr )
    , mProgressDlg( nullptr )
    , mFeatureSelectionManager( nullptr )
    , mAttributeEditorScrollArea( nullptr )
{
  setupUi( this );

  mConditionalFormatWidget->hide();

  mPreviewActionMapper = new QSignalMapper( this );

  mPreviewColumnsMenu = new QMenu( this );
  mActionPreviewColumnsMenu->setMenu( mPreviewColumnsMenu );

  // Set preview icon
  mActionExpressionPreview->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mIconExpressionPreview.svg" ) ) );

  // Connect layer list preview signals
  connect( mActionExpressionPreview, SIGNAL( triggered() ), SLOT( previewExpressionBuilder() ) );
  connect( mPreviewActionMapper, SIGNAL( mapped( QObject* ) ), SLOT( previewColumnChanged( QObject* ) ) );
  connect( mFeatureList, SIGNAL( displayExpressionChanged( QString ) ), this, SLOT( previewExpressionChanged( QString ) ) );
}

示例#2

文件： qgsdualview.cpp 项目： Jokenbol/QGIS

QgsDualView::QgsDualView( QWidget* parent )
    : QStackedWidget( parent )
    , mEditorContext()
    , mMasterModel( NULL )
    , mAttributeDialog( NULL )
    , mLayerCache( NULL )
    , mProgressDlg( NULL )
    , mFeatureSelectionManager( NULL )
{
  setupUi( this );

  mPreviewActionMapper = new QSignalMapper( this );

  mPreviewColumnsMenu = new QMenu( this );
  mActionPreviewColumnsMenu->setMenu( mPreviewColumnsMenu );

  // Set preview icon
  mActionExpressionPreview->setIcon( QgsApplication::getThemeIcon( "/mIconExpressionPreview.svg" ) );

  // Connect layer list preview signals
  connect( mActionExpressionPreview, SIGNAL( triggered() ), SLOT( previewExpressionBuilder() ) );
  connect( mPreviewActionMapper, SIGNAL( mapped( QObject* ) ), SLOT( previewColumnChanged( QObject* ) ) );
  connect( mFeatureList, SIGNAL( displayExpressionChanged( QString ) ), this, SLOT( previewExpressionChanged( QString ) ) );
  connect( this, SIGNAL( currentChanged( int ) ), this, SLOT( saveEditChanges() ) );
}

示例#3

文件： qgsfeaturefiltermodel.cpp 项目： enzogis/QGIS

void QgsFeatureFilterModel::setDisplayExpression( const QString &displayExpression )
{
  if ( mDisplayExpression.expression() == displayExpression )
    return;

  mDisplayExpression = QgsExpression( displayExpression );
  reload();
  emit displayExpressionChanged();
}

示例#4

文件： qgsfeaturelistview.cpp 项目： dmarteau/QGIS

bool QgsFeatureListView::setDisplayExpression( const QString &expression )
{
  if ( mModel->setDisplayExpression( expression ) )
  {
    emit displayExpressionChanged( expression );
    return true;
  }
  else
  {
    return false;
  }
}