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Support for default actions in layer tree view
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| #include "qgslayertreeviewdefaultactions.h" | ||
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| #include "qgsapplication.h" | ||
| #include "qgslayertreemodel.h" | ||
| #include "qgslayertreenode.h" | ||
| #include "qgslayertreeview.h" | ||
| #include "qgsmapcanvas.h" | ||
| #include "qgsvectorlayer.h" | ||
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| #include <QAction> | ||
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| QgsLayerTreeViewDefaultActions::QgsLayerTreeViewDefaultActions(QgsLayerTreeView* view) | ||
| : QObject(view) | ||
| , mView(view) | ||
| { | ||
| } | ||
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| QAction* QgsLayerTreeViewDefaultActions::actionAddGroup(QObject* parent) | ||
| { | ||
| QAction* a = new QAction(tr("&Add Group"), parent); | ||
| connect(a, SIGNAL(triggered()), this, SLOT(addGroup())); | ||
| return a; | ||
| } | ||
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| QAction* QgsLayerTreeViewDefaultActions::actionRemoveGroupOrLayer(QObject* parent) | ||
| { | ||
| QAction* a = new QAction(tr("Remove"), parent); | ||
| connect(a, SIGNAL(triggered()), this, SLOT(removeGroupOrLayer())); | ||
| return a; | ||
| } | ||
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| QAction* QgsLayerTreeViewDefaultActions::actionShowInOverview(QObject* parent) | ||
| { | ||
| QgsLayerTreeNode* node = mView->currentNode(); | ||
| if (!node) | ||
| return 0; | ||
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| QAction* a = new QAction(tr("Show in overview"), parent); | ||
| connect(a, SIGNAL(triggered()), this, SLOT(showInOverview())); | ||
| a->setCheckable(true); | ||
| a->setChecked(node->customProperty("overview", 0).toInt()); | ||
| return a; | ||
| } | ||
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| QAction* QgsLayerTreeViewDefaultActions::actionRenameGroupOrLayer(QObject* parent) | ||
| { | ||
| QAction* a = new QAction(tr("Re&name"), parent); | ||
| connect(a, SIGNAL(triggered()), this, SLOT(renameGroupOrLayer())); | ||
| return a; | ||
| } | ||
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| QAction* QgsLayerTreeViewDefaultActions::actionZoomToLayer(QgsMapCanvas* canvas, QObject* parent) | ||
| { | ||
| QAction* a = new QAction(QgsApplication::getThemeIcon( "/mActionZoomToLayer.svg" ), | ||
| tr("&Zoom to Layer Extent"), parent); | ||
| a->setData(QVariant::fromValue(reinterpret_cast<void*>(canvas))); | ||
| connect(a, SIGNAL(triggered()), this, SLOT(zoomToLayer())); | ||
| return a; | ||
| } | ||
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| void QgsLayerTreeViewDefaultActions::addGroup() | ||
| { | ||
| QgsLayerTreeGroup* group = mView->currentGroupNode(); | ||
| QString prefix = group == mView->layerTreeModel()->rootGroup() ? "group" : "sub-group"; | ||
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| QString newName = prefix + "1"; | ||
| for ( int i = 2; group->findGroup(newName); ++i) | ||
| newName = prefix + QString::number(i); | ||
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| QgsLayerTreeGroup* newGroup = group->addGroup(newName); | ||
| mView->edit( mView->layerTreeModel()->node2index(newGroup) ); | ||
| } | ||
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| void QgsLayerTreeViewDefaultActions::removeGroupOrLayer() | ||
| { | ||
| foreach (QgsLayerTreeNode* node, mView->selectedNodes(true)) | ||
| { | ||
| // could be more efficient if working directly with ranges instead of individual nodes | ||
| qobject_cast<QgsLayerTreeGroup*>(node->parent())->removeChildNode(node); | ||
| } | ||
| } | ||
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| void QgsLayerTreeViewDefaultActions::renameGroupOrLayer() | ||
| { | ||
| /*QgsLayerTreeNode* node = mView->currentNode(); | ||
| if (!node) | ||
| return;*/ | ||
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| mView->edit(mView->currentIndex()); | ||
| } | ||
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| void QgsLayerTreeViewDefaultActions::showInOverview() | ||
| { | ||
| QgsLayerTreeNode* node = mView->currentNode(); | ||
| if (!node) | ||
| return; | ||
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| node->setCustomProperty("overview", node->customProperty("overview", 0).toInt() ? 0 : 1); | ||
| } | ||
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| void QgsLayerTreeViewDefaultActions::zoomToLayer() | ||
| { | ||
| QAction* s = qobject_cast<QAction*>(sender()); | ||
| QgsMapCanvas* canvas = reinterpret_cast<QgsMapCanvas*>(s->data().value<void*>()); | ||
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| QgsMapLayer* layer = mView->currentLayer(); | ||
| if (!layer) | ||
| return; | ||
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| QList<QgsMapLayer*> layers; | ||
| layers << layer; | ||
| zoomToLayers(canvas, layers); | ||
| } | ||
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| void QgsLayerTreeViewDefaultActions::zoomToLayers(QgsMapCanvas* canvas, const QList<QgsMapLayer*>& layers) | ||
| { | ||
| QgsRectangle extent; | ||
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| for ( int i = 0; i < layers.size(); ++i ) | ||
| { | ||
| QgsMapLayer* layer = layers.at( i ); | ||
| QgsRectangle layerExtent = layer->extent(); | ||
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| QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( layer ); | ||
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| if ( layerExtent.isEmpty() && layer->type() == QgsMapLayer::VectorLayer ) | ||
| { | ||
| qobject_cast<QgsVectorLayer*>( layer )->updateExtents(); | ||
| layerExtent = vLayer->extent(); | ||
| } | ||
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| //transform extent if otf-projection is on | ||
| if ( canvas->hasCrsTransformEnabled() ) | ||
| layerExtent = canvas->mapSettings().layerExtentToOutputExtent( layer, layerExtent ); | ||
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| if ( i == 0 ) | ||
| extent = layerExtent; | ||
| else | ||
| extent.combineExtentWith( &layerExtent ); | ||
| } | ||
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| if ( extent.isEmpty() ) | ||
| return; | ||
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| // Increase bounding box with 5%, so that layer is a bit inside the borders | ||
| extent.scale( 1.05 ); | ||
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| //zoom to bounding box | ||
| canvas->setExtent( extent ); | ||
| } |
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