bool FSpriteGeometryEditMode::HandleClick(FEditorViewportClient* InViewportClient, HHitProxy* HitProxy, const FViewportClick& Click)
{
FViewport* Viewport = InViewportClient->Viewport;
const bool bIsCtrlKeyDown = Viewport->KeyState(EKeys::LeftControl) || Viewport->KeyState(EKeys::RightControl);
const bool bIsShiftKeyDown = Viewport->KeyState(EKeys::LeftShift) || Viewport->KeyState(EKeys::RightShift);
const bool bIsAltKeyDown = Viewport->KeyState(EKeys::LeftAlt) || Viewport->KeyState(EKeys::RightAlt);
bool bHandled = false;
const bool bAllowSelectVertex = !(IsEditingGeometry() && SpriteGeometryHelper.IsAddingPolygon()) && !bIsShiftKeyDown;
const bool bClearSelectionModifier = bIsCtrlKeyDown;
const bool bDeleteClickedVertex = bIsAltKeyDown;
const bool bInsertVertexModifier = bIsShiftKeyDown;
HSpriteSelectableObjectHitProxy* SelectedItemProxy = HitProxyCast<HSpriteSelectableObjectHitProxy>(HitProxy);
if (bAllowSelectVertex && (SelectedItemProxy != nullptr))
{
if (!bClearSelectionModifier)
{
SpriteGeometryHelper.ClearSelectionSet();
}
if (bDeleteClickedVertex)
{
// Delete selection
if (const FSpriteSelectedVertex* SelectedVertex = SelectedItemProxy->Data->CastTo<const FSpriteSelectedVertex>(FSelectionTypes::Vertex))
{
SpriteGeometryHelper.ClearSelectionSet();
SpriteGeometryHelper.AddPolygonVertexToSelection(SelectedVertex->ShapeIndex, SelectedVertex->VertexIndex);
SpriteGeometryHelper.DeleteSelectedItems();
}
else if (const FSpriteSelectedShape* SelectedShape = SelectedItemProxy->Data->CastTo<const FSpriteSelectedShape>(FSelectionTypes::GeometryShape))
{
SpriteGeometryHelper.ClearSelectionSet();
SpriteGeometryHelper.AddShapeToSelection(SelectedShape->ShapeIndex);
SpriteGeometryHelper.DeleteSelectedItems();
}
}
else if (Click.GetEvent() == EInputEvent::IE_DoubleClick)
{
// Double click to select a polygon
if (const FSpriteSelectedVertex* SelectedVertex = SelectedItemProxy->Data->CastTo<const FSpriteSelectedVertex>(FSelectionTypes::Vertex))
{
SpriteGeometryHelper.ClearSelectionSet();
SpriteGeometryHelper.AddShapeToSelection(SelectedVertex->ShapeIndex);
}
}
else
{
//@TODO: This needs to be generalized!
if (const FSpriteSelectedEdge* SelectedEdge = SelectedItemProxy->Data->CastTo<const FSpriteSelectedEdge>(FSelectionTypes::Edge))
{
// Add the next vertex defined by this edge
SpriteGeometryHelper.AddPolygonEdgeToSelection(SelectedEdge->ShapeIndex, SelectedEdge->VertexIndex);
}
else if (const FSpriteSelectedVertex* SelectedVertex = SelectedItemProxy->Data->CastTo<const FSpriteSelectedVertex>(FSelectionTypes::Vertex))
{
SpriteGeometryHelper.AddPolygonVertexToSelection(SelectedVertex->ShapeIndex, SelectedVertex->VertexIndex);
}
else if (const FSpriteSelectedShape* SelectedShape = SelectedItemProxy->Data->CastTo<const FSpriteSelectedShape>(FSelectionTypes::GeometryShape))
{
SpriteGeometryHelper.AddShapeToSelection(SelectedShape->ShapeIndex);
}
else
{
SpriteGeometryHelper.SelectItem(SelectedItemProxy->Data);
}
}
bHandled = true;
}
// else if (HWidgetUtilProxy* PivotProxy = HitProxyCast<HWidgetUtilProxy>(HitProxy))
// {
// //const bool bUserWantsPaint = bIsLeftButtonDown && ( !GetDefault<ULevelEditorViewportSettings>()->bLeftMouseDragMovesCamera || bIsCtrlDown );
// //findme
// WidgetAxis = WidgetProxy->Axis;
//
// // Calculate the screen-space directions for this drag.
// FSceneViewFamilyContext ViewFamily( FSceneViewFamily::ConstructionValues( Viewport, GetScene(), EngineShowFlags ));
// FSceneView* View = CalcSceneView(&ViewFamily);
// WidgetProxy->CalcVectors(View, FViewportClick(View, this, Key, Event, HitX, HitY), LocalManipulateDir, WorldManipulateDir, DragX, DragY);
// bHandled = true;
// }
else
{
if (IsEditingGeometry() && !SpriteGeometryHelper.IsAddingPolygon())
{
FSpriteGeometryCollection* Geometry = SpriteGeometryHelper.GetGeometryBeingEdited();
if (bInsertVertexModifier)
{
const FPlane SpritePlane(PaperAxisX, FVector::ZeroVector, PaperAxisY);
const FVector WorldPoint = FMath::LinePlaneIntersection(Click.GetOrigin(), Click.GetOrigin() + Click.GetDirection(), SpritePlane);
const FVector2D SpriteSpaceClickPoint = SpriteGeometryHelper.GetEditorContext()->WorldSpaceToTextureSpace(WorldPoint);
// find a polygon to add vert to
bool bFoundShapeToAddTo = false;
for (TSharedPtr<FSelectedItem> SelectedItemPtr : SpriteGeometryHelper.GetSelectionSet())
{
if (const FSpriteSelectedVertex* SelectedVertex = SelectedItemPtr->CastTo<const FSpriteSelectedVertex>(FSelectionTypes::Vertex)) //@TODO: Inflexible?
{
SpriteGeometryHelper.AddPointToGeometry(SpriteSpaceClickPoint, SelectedVertex->ShapeIndex);
bFoundShapeToAddTo = true;
break;
}
}
if (!bFoundShapeToAddTo)
{
SpriteGeometryHelper.AddPointToGeometry(SpriteSpaceClickPoint);
}
bHandled = true;
}
}
else if (!IsEditingGeometry())
{
// Clicked on the background (missed any proxies), deselect the socket or whatever was selected
SpriteGeometryHelper.ClearSelectionSet();
}
}
return bHandled ? true : FEdMode::HandleClick(InViewportClient, HitProxy, Click);
}
