本文整理汇总了C++中QgsVectorLayer::actions方法的典型用法代码示例。如果您正苦于以下问题：C++ QgsVectorLayer::actions方法的具体用法？C++ QgsVectorLayer::actions怎么用？C++ QgsVectorLayer::actions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::actions方法的2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: canvasReleaseEvent
void QgsMapToolFeatureAction::canvasReleaseEvent( QMouseEvent *e )
{
QgsMapLayer *layer = mCanvas->currentLayer();
if ( !layer || layer->type() != QgsMapLayer::VectorLayer )
{
emit messageEmitted( tr( "To run an action, you must choose an active vector layer." ), QgsMessageBar::INFO );
return;
}
if ( !mCanvas->layers().contains( layer ) )
{
// do not run actions on hidden layers
return;
}
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( layer );
if ( vlayer->actions()->size() == 0 && QgsMapLayerActionRegistry::instance()->mapLayerActions( vlayer ).size() == 0 )
{
emit messageEmitted( tr( "The active vector layer has no defined actions" ), QgsMessageBar::INFO );
return;
}
if ( !doAction( vlayer, e->x(), e->y() ) )
QgisApp::instance()->statusBar()->showMessage( tr( "No features at this position found." ) );
}示例2: canvasReleaseEvent
void QgsMapToolFeatureAction::canvasReleaseEvent( QMouseEvent *e )
{
QgsMapLayer *layer = mCanvas->currentLayer();
if ( !layer || layer->type() != QgsMapLayer::VectorLayer )
{
QMessageBox::warning( mCanvas,
tr( "No active vector layer" ),
tr( "To run an action, you must choose a vector layer by clicking on its name in the legend" ) );
return;
}
if ( !mCanvas->layers().contains( layer ) )
{
// do not run actions on hidden layers
return;
}
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( layer );
if ( vlayer->actions()->size() == 0 && QgsMapLayerActionRegistry::instance()->mapLayerActions( vlayer ).size() == 0 )
{
QMessageBox::warning( mCanvas,
tr( "No actions available" ),
tr( "The active vector layer has no defined actions" ) );
return;
}
if ( !doAction( vlayer, e->x(), e->y() ) )
QgisApp::instance()->statusBar()->showMessage( tr( "No features at this position found." ) );
}