void updateLocation (const bool canDoExternalDrag, const Point<int>& screenPos)
{
DragAndDropTarget::SourceDetails details (sourceDetails);
setNewScreenPos (screenPos);
Component* newTargetComp;
DragAndDropTarget* const newTarget = findTarget (screenPos, details.localPosition, newTargetComp);
setVisible (newTarget == nullptr || newTarget->shouldDrawDragImageWhenOver());
if (newTargetComp != currentlyOverComp)
{
DragAndDropTarget* const lastTarget = getCurrentlyOver();
if (lastTarget != nullptr && details.sourceComponent != nullptr
&& lastTarget->isInterestedInDragSource (details))
lastTarget->itemDragExit (details);
currentlyOverComp = newTargetComp;
if (newTarget != nullptr
&& newTarget->isInterestedInDragSource (details))
newTarget->itemDragEnter (details);
}
sendDragMove (details);
if (canDoExternalDrag && getCurrentlyOver() == nullptr)
checkForExternalDrag (details, screenPos);
}
void sendDragMove (DragAndDropTarget::SourceDetails& details) const
{
DragAndDropTarget* const target = getCurrentlyOver();
if (target != nullptr && target->isInterestedInDragSource (details))
target->itemDragMove (details);
}
~DragImageComponent()
{
if (owner->dragImageComponent == this)
owner->dragImageComponent.release();
if (mouseDragSource != nullptr)
{
mouseDragSource->removeMouseListener (this);
DragAndDropTarget* const current = getCurrentlyOver();
if (current != nullptr && current->isInterestedInDragSource (sourceDetails))
current->itemDragExit (sourceDetails);
}
}
void updateLocation (const bool canDoExternalDrag, const Point<int>& screenPos)
{
// (note: use a local copy of this in case a callback runs a modal loop and deletes
// this object before it returns)
DragAndDropTarget::SourceDetails details (sourceDetails);
Point<int> newPos (screenPos + imageOffset);
if (getParentComponent() != nullptr)
newPos = getParentComponent()->getLocalPoint (nullptr, newPos);
//if (newX != getX() || newY != getY())
{
setTopLeftPosition (newPos.getX(), newPos.getY());
Point<int> relPos;
DragAndDropTarget* const newTarget = findTarget (screenPos, relPos);
Component* newTargetComp = dynamic_cast <Component*> (newTarget);
drawImage = (newTarget == nullptr) || newTarget->shouldDrawDragImageWhenOver();
if (newTargetComp != currentlyOverComp)
{
DragAndDropTarget* const lastTarget = getCurrentlyOver();
if (lastTarget != nullptr && details.sourceComponent != nullptr
&& lastTarget->isInterestedInDragSource (details))
lastTarget->itemDragExit (details);
currentlyOverComp = newTargetComp;
if (newTarget != nullptr)
{
details.localPosition = relPos;
if (newTarget->isInterestedInDragSource (details))
newTarget->itemDragEnter (details);
}
}
{
DragAndDropTarget* const target = getCurrentlyOver();
if (target != nullptr)
{
details.localPosition = relPos;
if (target->isInterestedInDragSource (details))
target->itemDragMove (details);
}
}
if (getCurrentlyOver() == nullptr && canDoExternalDrag && ! hasCheckedForExternalDrag)
{
if (Desktop::getInstance().findComponentAt (screenPos) == nullptr)
{
hasCheckedForExternalDrag = true;
StringArray files;
bool canMoveFiles = false;
if (owner->shouldDropFilesWhenDraggedExternally (details, files, canMoveFiles)
&& files.size() > 0)
{
WeakReference<Component> thisWeakRef (this);
setVisible (false);
if (ModifierKeys::getCurrentModifiersRealtime().isAnyMouseButtonDown())
DragAndDropContainer::performExternalDragDropOfFiles (files, canMoveFiles);
delete thisWeakRef.get();
return;
}
}
}
}
}
