WIP: Add CLipRects to UI7 Layouts

- Added Scissor Support to Font Rendering

source/ui7/container/container.cpp

@@ -40,5 +40,18 @@ PD_API void Container::HandleScrolling(fvec2 scrolling, fvec4 viewport) {
 PD_API void Container::HandleInternalInput() {
   /** Requires Handle Scrolling First */
 }
+
+/** Internal function */
+PD_API void Container::PreDraw() {
+  if (pCLipRectUsed) {
+    list->PushClipRect(pClipRect);
+  }
+}
+/** Internal function */
+PD_API void Container::PostDraw() {
+  if (pCLipRectUsed) {
+    list->PopClipRect();
+  }
+}
 }  // namespace UI7
 }  // namespace PD

source/ui7/container/label.cpp

@@ -28,14 +28,8 @@ namespace UI7 {
 PD_API void Label::Draw() {
   // Assert(io.get() && list.get(), "Did you run Container::Init correctly?");
   // io->Ren->OnScreen(screen);
-  if (pCLipRectUsed) {
-    list->PushClipRect(pClipRect);
-  }
   list->DrawTextEx(FinalPos(), label, io->Theme->Get(UI7Color_Text),
                    LiTextFlags_NoOOS, PD::fvec2(0, io->CurrentViewPort.w));
-  if (pCLipRectUsed) {
-    list->PopClipRect();
-  }
 }
 
 PD_API void Label::Update() {

source/ui7/layout.cpp

@@ -125,7 +125,12 @@ PD_API void Layout::Update() {
       it->SetPos(it->GetPos() + Pos);
       it->HandleInput();
       it->UnlockInput();
+      if (Flags & UI7LayoutFlags_UseClipRect) {
+        it->SetClipRect(fvec4(Pos, Size));
+      }
+      it->PreDraw();
       it->Draw();
+      it->PostDraw();
     }
   }
 

source/ui7/menu.cpp

@@ -30,14 +30,13 @@ Menu::Menu(const ID& id, IO::Ref io) : pIO(io), pID(id) {
   pLayout = Layout::New(id, io);
   TitleBarHeight = pIO->FontScale * pIO->Font->PixelHeight + pIO->MenuPadding.y;
   pLayout->WorkRect.y += TitleBarHeight;
+  pLayout->Flags |= UI7LayoutFlags_UseClipRect;
   pLayout->CursorInit();
 }
 
 PD_API void Menu::Label(const std::string& label) {
   // Layout API
   auto r = Label::New(label, pIO);
-  r->SetClipRect(fvec4(pLayout->GetPosition(),
-                       pLayout->GetPosition() + pLayout->GetSize()));
   pLayout->AddObject(r);
 }