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Refactor activateDeactivateLayerRelatedActions
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@NathanW2
NathanW2 committed May 15, 2013
1 parent 1bfa7e9 commit a0c9f5f
Showing 1 changed file with 44 additions and 93 deletions.
137 changes: 44 additions & 93 deletions src/app/qgisapp.cpp
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Expand Up @@ -7913,9 +7913,18 @@ void QgisApp::activateDeactivateLayerRelatedActions( QgsMapLayer* layer )
{
QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( layer );
QgsVectorDataProvider* dprovider = vlayer->dataProvider();
bool isEditable = vlayer->isEditable();
bool layerHasSelection = vlayer->selectedFeatureCount() != 0;
bool layerHasActions = vlayer->actions()->size() > 0;

bool canChangeAttributes = dprovider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues;
bool canDeleteFeatures = dprovider->capabilities() & QgsVectorDataProvider::DeleteFeatures;
bool canAddAttributes = dprovider->capabilities() & QgsVectorDataProvider::AddAttributes;
bool canDeleteAttributes = dprovider->capabilities() & QgsVectorDataProvider::DeleteAttributes;
bool canAddFeatures = dprovider->capabilities() & QgsVectorDataProvider::AddFeatures;
bool canSupportEditing = dprovider->capabilities() & QgsVectorDataProvider::EditingCapabilities;
bool canChangeGeometry = dprovider->capabilities() & QgsVectorDataProvider::ChangeGeometries;

mActionLocalHistogramStretch->setEnabled( false );
mActionFullHistogramStretch->setEnabled( false );
mActionZoomActualSize->setEnabled( false );
Expand All @@ -7932,64 +7941,42 @@ void QgisApp::activateDeactivateLayerRelatedActions( QgsMapLayer* layer )
mActionCopyFeatures->setEnabled( layerHasSelection );
mActionFeatureAction->setEnabled( layerHasActions );

if ( !vlayer->isEditable() && mMapCanvas->mapTool()
if ( !isEditable && mMapCanvas->mapTool()
&& mMapCanvas->mapTool()->isEditTool() && !mSaveRollbackInProgress )
{
mMapCanvas->setMapTool( mNonEditMapTool );
}

if ( dprovider )
{
mActionLayerSubsetString->setEnabled( dprovider->supportsSubsetString() && !vlayer->isEditable() );
mActionLayerSubsetString->setEnabled( dprovider->supportsSubsetString() && !isEditable );

mActionToggleEditing->setEnabled( canSupportEditing && !vlayer->isReadOnly() );
mActionToggleEditing->setChecked( canSupportEditing && isEditable );
mActionSaveLayerEdits->setEnabled( canSupportEditing && isEditable && vlayer->isModified() );
mUndoWidget->dockContents()->setEnabled( canSupportEditing && isEditable );
mActionUndo->setEnabled( canSupportEditing );
mActionRedo->setEnabled( canSupportEditing );

//start editing/stop editing
if ( dprovider->capabilities() & QgsVectorDataProvider::EditingCapabilities )
if ( canSupportEditing )
{
mActionToggleEditing->setEnabled( !vlayer->isReadOnly() );
mActionToggleEditing->setChecked( vlayer->isEditable() );
mActionSaveLayerEdits->setEnabled( vlayer->isEditable() && vlayer->isModified() );
mUndoWidget->dockContents()->setEnabled( vlayer->isEditable() );
updateUndoActions();
}
else
{
mActionToggleEditing->setEnabled( false );
mActionToggleEditing->setChecked( false );
mActionSaveLayerEdits->setEnabled( false );
mUndoWidget->dockContents()->setEnabled( false );
mActionUndo->setEnabled( false );
mActionRedo->setEnabled( false );
}

if ( dprovider->capabilities() & QgsVectorDataProvider::AddFeatures )
{
mActionPasteFeatures->setEnabled( vlayer->isEditable() && !clipboard()->empty() );
mActionAddFeature->setEnabled( vlayer->isEditable() );
}
else
{
mActionPasteFeatures->setEnabled( false );
mActionAddFeature->setEnabled( false );
}
mActionPasteFeatures->setEnabled( canAddAttributes && isEditable && !clipboard()->empty() );
mActionAddFeature->setEnabled( canAddAttributes && isEditable );

//does provider allow deleting of features?
if ( vlayer->isEditable() && dprovider->capabilities() & QgsVectorDataProvider::DeleteFeatures )
{
mActionDeleteSelected->setEnabled( layerHasSelection );
mActionCutFeatures->setEnabled( layerHasSelection );
}
else
{
mActionDeleteSelected->setEnabled( false );
mActionCutFeatures->setEnabled( false );
}
mActionDeleteSelected->setEnabled( isEditable && canDeleteFeatures && layerHasSelection );
mActionCutFeatures->setEnabled( isEditable && canDeleteFeatures && layerHasSelection );

//merge tool needs editable layer and provider with the capability of adding and deleting features
if ( vlayer->isEditable() && dprovider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues )
if ( isEditable && canChangeAttributes )
{
mActionMergeFeatures->setEnabled( layerHasSelection &&
dprovider->capabilities() & QgsVectorDataProvider::DeleteFeatures &&
dprovider->capabilities() & QgsVectorDataProvider::AddFeatures );
canDeleteFeatures &&
canAddAttributes );

mActionMergeFeatureAttributes->setEnabled( layerHasSelection );
}
Expand All @@ -8000,23 +7987,13 @@ void QgisApp::activateDeactivateLayerRelatedActions( QgsMapLayer* layer )
}

// moving enabled if geometry changes are supported
if ( vlayer->isEditable() && dprovider->capabilities() & QgsVectorDataProvider::ChangeGeometries )
{
mActionAddPart->setEnabled( true );
mActionDeletePart->setEnabled( true );
mActionMoveFeature->setEnabled( true );
mActionRotateFeature->setEnabled( true );
mActionNodeTool->setEnabled( true );
}
else
{
mActionAddPart->setEnabled( false );
mActionDeletePart->setEnabled( false );
mActionMoveFeature->setEnabled( false );
mActionRotateFeature->setEnabled( false );
mActionOffsetCurve->setEnabled( false );
mActionNodeTool->setEnabled( false );
}
mActionAddPart->setEnabled( isEditable && canChangeGeometry );
mActionDeletePart->setEnabled( isEditable && canChangeGeometry );
mActionMoveFeature->setEnabled( isEditable && canChangeGeometry );
mActionRotateFeature->setEnabled( isEditable && canChangeGeometry );
mActionNodeTool->setEnabled( isEditable && canChangeGeometry );

mActionOffsetCurve->setEnabled( false );

if ( vlayer->geometryType() == QGis::Point )
{
Expand All @@ -8029,7 +8006,7 @@ void QgisApp::activateDeactivateLayerRelatedActions( QgsMapLayer* layer )
mActionDeleteRing->setEnabled( false );
mActionRotatePointSymbols->setEnabled( false );

if ( vlayer->isEditable() && dprovider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues )
if ( isEditable && canChangeAttributes )
{
if ( QgsMapToolRotatePointSymbols::layerIsRotatable( vlayer ) )
{
Expand All @@ -8042,19 +8019,10 @@ void QgisApp::activateDeactivateLayerRelatedActions( QgsMapLayer* layer )
{
mActionAddFeature->setIcon( QgsApplication::getThemeIcon( "/mActionCaptureLine.png" ) );

if ( vlayer->isEditable() && dprovider->capabilities() & QgsVectorDataProvider::AddFeatures )
{
mActionReshapeFeatures->setEnabled( true );
mActionSplitFeatures->setEnabled( true );
mActionSimplifyFeature->setEnabled( true );
mActionOffsetCurve->setEnabled( dprovider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues );
}
else
{
mActionReshapeFeatures->setEnabled( false );
mActionSplitFeatures->setEnabled( false );
mActionSimplifyFeature->setEnabled( false );
}
mActionReshapeFeatures->setEnabled( isEditable && canAddFeatures );
mActionSplitFeatures->setEnabled( isEditable && canAddFeatures );
mActionSimplifyFeature->setEnabled( isEditable && canAddFeatures );
mActionOffsetCurve->setEnabled( isEditable && canAddFeatures && canChangeAttributes );

mActionAddRing->setEnabled( false );
mActionDeleteRing->setEnabled( false );
Expand All @@ -8063,31 +8031,14 @@ void QgisApp::activateDeactivateLayerRelatedActions( QgsMapLayer* layer )
{
mActionAddFeature->setIcon( QgsApplication::getThemeIcon( "/mActionCapturePolygon.png" ) );

if ( vlayer->isEditable() && dprovider->capabilities() & QgsVectorDataProvider::AddFeatures )
{
mActionAddRing->setEnabled( true );
mActionReshapeFeatures->setEnabled( true );
mActionSplitFeatures->setEnabled( true );
mActionSimplifyFeature->setEnabled( true );
mActionDeleteRing->setEnabled( true );
}
else
{
mActionAddRing->setEnabled( false );
mActionReshapeFeatures->setEnabled( false );
mActionSplitFeatures->setEnabled( false );
mActionSimplifyFeature->setEnabled( false );
mActionDeleteRing->setEnabled( false );
}
mActionAddRing->setEnabled( isEditable && canAddFeatures );
mActionReshapeFeatures->setEnabled( isEditable && canAddFeatures );
mActionSplitFeatures->setEnabled( isEditable && canAddFeatures );
mActionSimplifyFeature->setEnabled( isEditable && canAddFeatures );
mActionDeleteRing->setEnabled( isEditable && canAddFeatures );
}

bool canChangeAttributes = dprovider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues;
bool canDeleteFeatures = dprovider->capabilities() & QgsVectorDataProvider::DeleteFeatures;
bool canAddAttributes = dprovider->capabilities() & QgsVectorDataProvider::AddAttributes;
bool canDeleteAttributes = dprovider->capabilities() & QgsVectorDataProvider::DeleteAttributes;
bool canAddFeatures = dprovider->capabilities() & QgsVectorDataProvider::AddFeatures;

mActionOpenFieldCalc->setEnabled(( canChangeAttributes || canAddAttributes ) && vlayer->isEditable() );
mActionOpenFieldCalc->setEnabled(( canChangeAttributes || canAddAttributes ) && isEditable );

return;
}
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