C++ (Cpp) QgsAtlasComposition::updateFeatures 예제들

예제 #1

파일: qgsatlascompositionwidget.cpp 프로젝트: Jokenbol/QGIS

void QgsAtlasCompositionWidget::updateAtlasFeatures()
{
  //only do this if composer mode is preview
  if ( !( mComposition->atlasMode() == QgsComposition::PreviewAtlas ) )
  {
    return;
  }

  //update atlas features
  QgsAtlasComposition* atlasMap = &mComposition->atlasComposition();
  if ( !atlasMap )
  {
    return;
  }

  bool updated = atlasMap->updateFeatures();
  if ( !updated )
  {
    QMessageBox::warning( 0, tr( "Atlas preview" ),
                          tr( "No matching atlas features found!" ),
                          QMessageBox::Ok,
                          QMessageBox::Ok );

    //Perhaps atlas preview should be disabled now? If so, it may get annoying if user is editing
    //the filter expression and it keeps disabling itself.
    return;
  }
}

예제 #2

파일: qgsatlascompositionwidget.cpp 프로젝트: GiordanoPezzola/QGIS

void QgsAtlasCompositionWidget::updateAtlasFeatures()
{
  //only do this if composer mode is preview
  if ( !( mComposition->atlasMode() == QgsComposition::PreviewAtlas ) )
  {
    return;
  }

  //update atlas features
  QgsAtlasComposition* atlasMap = &mComposition->atlasComposition();
  if ( !atlasMap )
  {
    return;
  }

  bool updated = atlasMap->updateFeatures();
  if ( !updated )
  {
    QMessageBox::warning( 0, tr( "Atlas preview" ),
                          tr( "No matching atlas features found!" ),
                          QMessageBox::Ok,
                          QMessageBox::Ok );

    return;
  }
}