Exemplo n.º 1
0
QgsVectorLayerUndoCommandChangeAttribute::QgsVectorLayerUndoCommandChangeAttribute( QgsVectorLayerEditBuffer* buffer, QgsFeatureId fid, int fieldIndex, const QVariant &newValue, const QVariant &oldValue )
    : QgsVectorLayerUndoCommand( buffer )
    , mFid( fid )
    , mFieldIndex( fieldIndex )
    , mOldValue( oldValue )
    , mNewValue( newValue )
    , mFirstChange( true )
{
  if ( FID_IS_NEW( mFid ) )
  {
    // work with added feature
    QgsFeatureMap::const_iterator it = mBuffer->mAddedFeatures.constFind( mFid );
    Q_ASSERT( it != mBuffer->mAddedFeatures.constEnd() );
    if ( it.value().attribute( mFieldIndex ).isValid() )
    {
      mOldValue = it.value().attribute( mFieldIndex );
      mFirstChange = false;
    }
  }
  else if ( mBuffer->mChangedAttributeValues.contains( mFid ) && mBuffer->mChangedAttributeValues[mFid].contains( mFieldIndex ) )
  {
    mOldValue = mBuffer->mChangedAttributeValues[mFid][mFieldIndex];
    mFirstChange = false;
  }

}
Exemplo n.º 2
0
QgsVectorLayerUndoCommandDeleteFeature::QgsVectorLayerUndoCommandDeleteFeature( QgsVectorLayerEditBuffer* buffer, QgsFeatureId fid )
    : QgsVectorLayerUndoCommand( buffer )
{
  mFid = fid;

  if ( FID_IS_NEW( mFid ) )
  {
    QgsFeatureMap::const_iterator it = mBuffer->mAddedFeatures.constFind( mFid );
    Q_ASSERT( it != mBuffer->mAddedFeatures.constEnd() );
    mOldAddedFeature = it.value();
  }
}
QgsVectorLayerUndoCommandChangeGeometry::QgsVectorLayerUndoCommandChangeGeometry( QgsVectorLayerEditBuffer *buffer, QgsFeatureId fid, const QgsGeometry &newGeom )
  : QgsVectorLayerUndoCommand( buffer )
  , mFid( fid )
  , mNewGeom( newGeom )
{
  if ( FID_IS_NEW( mFid ) )
  {
    QgsFeatureMap::const_iterator it = mBuffer->mAddedFeatures.constFind( mFid );
    Q_ASSERT( it != mBuffer->mAddedFeatures.constEnd() );
    mOldGeom = ( it.value().geometry() );
  }
  else
  {
    mOldGeom = mBuffer->mChangedGeometries.value( mFid, QgsGeometry() );
  }
}
Exemplo n.º 4
0
QgsVectorLayerUndoCommandChangeGeometry::QgsVectorLayerUndoCommandChangeGeometry( QgsVectorLayerEditBuffer* buffer, QgsFeatureId fid, const QgsGeometry& newGeom )
    : QgsVectorLayerUndoCommand( buffer )
    , mFid( fid )
    , mNewGeom( newGeom )
{
  if ( FID_IS_NEW( mFid ) )
  {
    QgsFeatureMap::const_iterator it = mBuffer->mAddedFeatures.constFind( mFid );
    Q_ASSERT( it != mBuffer->mAddedFeatures.constEnd() );
    mOldGeom = ( it.value().geometry() );
  }
  else
  {
    bool changedAlready = mBuffer->mChangedGeometries.contains( mFid );
    QgsGeometry geom;
    bool cachedGeom = cache()->geometry( mFid, geom );
    mOldGeom = ( changedAlready && cachedGeom ) ? geom : QgsGeometry();
  }
}
QgsVectorLayerUndoCommandDeleteAttribute::QgsVectorLayerUndoCommandDeleteAttribute( QgsVectorLayerEditBuffer* buffer, int fieldIndex )
    : QgsVectorLayerUndoCommand( buffer )
    , mFieldIndex( fieldIndex )
{
  const QgsFields& fields = layer()->fields();
  QgsFields::FieldOrigin origin = fields.fieldOrigin( mFieldIndex );
  mOriginIndex = fields.fieldOriginIndex( mFieldIndex );
  mProviderField = ( origin == QgsFields::OriginProvider );
  mFieldName = fields.field( mFieldIndex ).name();
  mOldEditorWidgetConfig = mBuffer->L->editFormConfig().widgetConfig( mFieldName );

  if ( !mProviderField )
  {
    // need to store the field definition
    mOldField = mBuffer->mAddedAttributes[mOriginIndex];
  }

  if ( mBuffer->mRenamedAttributes.contains( fieldIndex ) )
  {
    mOldName = mBuffer->mRenamedAttributes.value( fieldIndex );
  }

  // save values of new features
  for ( QgsFeatureMap::const_iterator it = mBuffer->mAddedFeatures.constBegin(); it != mBuffer->mAddedFeatures.constEnd(); ++it )
  {
    const QgsFeature& f = it.value();
    mDeletedValues.insert( f.id(), f.attribute( mFieldIndex ) );
  }

  // save changed values
  for ( QgsChangedAttributesMap::const_iterator it = mBuffer->mChangedAttributeValues.constBegin(); it != mBuffer->mChangedAttributeValues.constEnd(); ++it )
  {
    const QgsAttributeMap& attrs = it.value();
    if ( attrs.contains( mFieldIndex ) )
      mDeletedValues.insert( it.key(), attrs[mFieldIndex] );
  }
}