本文整理汇总了C++中QgsVectorLayer::readOnly方法的典型用法代码示例。如果您正苦于以下问题：C++ QgsVectorLayer::readOnly方法的具体用法？C++ QgsVectorLayer::readOnly怎么用？C++ QgsVectorLayer::readOnly使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QgsVectorLayer的用法示例。
在下文中一共展示了QgsVectorLayer::readOnly方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: setRelations
void QgsRelationEditorWidget::setRelations( const QgsRelation& relation, const QgsRelation& nmrelation )
{
if ( mRelation.isValid() )
{
disconnect( mRelation.referencingLayer(), SIGNAL( editingStarted() ), this, SLOT( updateButtons() ) );
disconnect( mRelation.referencingLayer(), SIGNAL( editingStopped() ), this, SLOT( updateButtons() ) );
}
if ( mNmRelation.isValid() )
{
disconnect( mNmRelation.referencedLayer(), SIGNAL( editingStarted() ), this, SLOT( updateButtons() ) );
disconnect( mNmRelation.referencedLayer(), SIGNAL( editingStopped() ), this, SLOT( updateButtons() ) );
}
mRelation = relation;
mNmRelation = nmrelation;
if ( !mRelation.isValid() )
return;
connect( mRelation.referencingLayer(), SIGNAL( editingStarted() ), this, SLOT( updateButtons() ) );
connect( mRelation.referencingLayer(), SIGNAL( editingStopped() ), this, SLOT( updateButtons() ) );
if ( mNmRelation.isValid() )
{
connect( mNmRelation.referencingLayer(), SIGNAL( editingStarted() ), this, SLOT( updateButtons() ) );
connect( mNmRelation.referencingLayer(), SIGNAL( editingStopped() ), this, SLOT( updateButtons() ) );
}
setTitle( relation.name() );
QgsVectorLayer* lyr = relation.referencingLayer();
bool canChangeAttributes = lyr->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeAttributeValues;
if ( canChangeAttributes && !lyr->readOnly() )
{
mToggleEditingButton->setEnabled( true );
updateButtons();
}
else
{
mToggleEditingButton->setEnabled( false );
}
setObjectName( mRelation.name() );
loadState();
updateUi();
}示例2: setRelationFeature
void QgsRelationEditorWidget::setRelationFeature( const QgsRelation& relation, const QgsFeature& feature )
{
if ( mRelation.isValid() )
{
disconnect( mRelation.referencingLayer(), SIGNAL( editingStarted() ), this, SLOT( updateButtons() ) );
disconnect( mRelation.referencingLayer(), SIGNAL( editingStopped() ), this, SLOT( updateButtons() ) );
}
mRelation = relation;
mFeature = feature;
connect( mRelation.referencingLayer(), SIGNAL( editingStarted() ), this, SLOT( updateButtons() ) );
connect( mRelation.referencingLayer(), SIGNAL( editingStopped() ), this, SLOT( updateButtons() ) );
setTitle( relation.name() );
QgsVectorLayer* lyr = relation.referencingLayer();
bool canChangeAttributes = lyr->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeAttributeValues;
if ( canChangeAttributes && !lyr->readOnly() )
{
mToggleEditingButton->setEnabled( true );
updateButtons();
}
else
{
mToggleEditingButton->setEnabled( false );
}
setObjectName( mRelation.name() );
loadState();
// If not yet initialized, it is not (yet) visible, so we don't load it to be faster (lazy loading)
// If it is already initialized, it has been set visible before and the currently shown feature is changing
// and the widget needs updating
if ( mVisible )
{
QgsFeatureRequest myRequest = mRelation.getRelatedFeaturesRequest( mFeature );
mDualView->init( mRelation.referencingLayer(), nullptr, myRequest, mEditorContext );
}
}示例3: setRelations
void QgsRelationEditorWidget::setRelations( const QgsRelation &relation, const QgsRelation &nmrelation )
{
if ( mRelation.isValid() )
{
disconnect( mRelation.referencingLayer(), &QgsVectorLayer::editingStarted, this, &QgsRelationEditorWidget::updateButtons );
disconnect( mRelation.referencingLayer(), &QgsVectorLayer::editingStopped, this, &QgsRelationEditorWidget::updateButtons );
}
if ( mNmRelation.isValid() )
{
disconnect( mNmRelation.referencedLayer(), &QgsVectorLayer::editingStarted, this, &QgsRelationEditorWidget::updateButtons );
disconnect( mNmRelation.referencedLayer(), &QgsVectorLayer::editingStopped, this, &QgsRelationEditorWidget::updateButtons );
}
mRelation = relation;
mNmRelation = nmrelation;
if ( !mRelation.isValid() )
return;
mToggleEditingButton->setVisible( true );
const auto transactionGroups = QgsProject::instance()->transactionGroups();
for ( auto it = transactionGroups.constBegin(); it != transactionGroups.constEnd(); ++it )
{
if ( it.value()->layers().contains( mRelation.referencingLayer() ) )
{
mToggleEditingButton->setVisible( false );
mSaveEditsButton->setVisible( false );
}
}
connect( mRelation.referencingLayer(), &QgsVectorLayer::editingStarted, this, &QgsRelationEditorWidget::updateButtons );
connect( mRelation.referencingLayer(), &QgsVectorLayer::editingStopped, this, &QgsRelationEditorWidget::updateButtons );
if ( mNmRelation.isValid() )
{
connect( mNmRelation.referencedLayer(), &QgsVectorLayer::editingStarted, this, &QgsRelationEditorWidget::updateButtons );
connect( mNmRelation.referencedLayer(), &QgsVectorLayer::editingStopped, this, &QgsRelationEditorWidget::updateButtons );
}
setTitle( relation.name() );
QgsVectorLayer *lyr = relation.referencingLayer();
bool canChangeAttributes = lyr->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeAttributeValues;
if ( canChangeAttributes && !lyr->readOnly() )
{
mToggleEditingButton->setEnabled( true );
updateButtons();
}
else
{
mToggleEditingButton->setEnabled( false );
}
if ( mNmRelation.isValid() )
mZoomToFeatureButton->setVisible( mNmRelation.referencedLayer()->isSpatial() );
else
mZoomToFeatureButton->setVisible( mRelation.referencingLayer()->isSpatial() );
setObjectName( QStringLiteral( "referenced/" ) + mRelation.name() );
updateUi();
}