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nodeview: implemented dragger to create edge without holding key

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This commit is contained in:
itsmattkc
2021-07-10 10:19:36 -07:00
parent 8f055e6331
commit 4d69e55799
4 changed files with 72 additions and 10 deletions
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app/widget/nodeview/nodeview.cpp
+26 -10
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@@ -505,8 +505,11 @@ void NodeView::mousePressEvent(QMouseEvent *event)
if (HandPress(event)) return;
if (event->button() == Qt::LeftButton) {
// See if we're dragging the arrow of an edge
QPointF scene_pt = mapToScene(event->pos());
foreach (NodeViewEdge *edge_item, scene_.edges()) {
if (edge_item->arrow_bounding_rect().contains(mapToScene(event->pos()))) {
if (edge_item->arrow_bounding_rect().contains(scene_pt)) {
create_edge_src_ = scene_.NodeToUIObject(edge_item->output().node());
create_edge_src_output_ = edge_item->output().output();
create_edge_ = edge_item;
@@ -514,6 +517,14 @@ void NodeView::mousePressEvent(QMouseEvent *event)
return;
}
}
// See if we're dragging the arrow of a node
foreach (NodeViewItem *node_item, scene_.item_map()) {
if (node_item->GetOutputTriangle().boundingRect().translated(node_item->pos()).contains(scene_pt)) {
CreateNewEdge(node_item);
return;
}
}
}
QGraphicsItem* item = itemAt(event->pos());
@@ -535,15 +546,7 @@ void NodeView::mousePressEvent(QMouseEvent *event)
if (event->modifiers() & Qt::ControlModifier) {
NodeViewItem* node_item = dynamic_cast<NodeViewItem*>(item);
if (node_item) {
create_edge_ = new NodeViewEdge();
create_edge_src_ = node_item;
create_edge_src_output_ = Node::kDefaultOutput;
create_edge_already_exists_ = false;
create_edge_->SetCurved(scene_.GetEdgesAreCurved());
create_edge_->SetFlowDirection(scene_.GetFlowDirection());
scene_.addItem(create_edge_);
CreateNewEdge(node_item);
return;
}
}
@@ -1501,6 +1504,19 @@ Menu *NodeView::CreateAddMenu(Menu *parent)
return add_menu;
}
void NodeView::CreateNewEdge(NodeViewItem *output_item)
{
create_edge_ = new NodeViewEdge();
create_edge_src_ = output_item;
create_edge_src_output_ = Node::kDefaultOutput;
create_edge_already_exists_ = false;
create_edge_->SetCurved(scene_.GetEdgesAreCurved());
create_edge_->SetFlowDirection(scene_.GetFlowDirection());
scene_.addItem(create_edge_);
}
NodeView::NodeViewAttachNodesToCursor::NodeViewAttachNodesToCursor(NodeView *view, const QVector<Node *> &nodes) :
view_(view),
nodes_(nodes)