From c0c0106cf47fdff397756913b8646541f3bb9928 Mon Sep 17 00:00:00 2001
From: Yuqian Yang <crupest@crupest.life>
Date: Thu, 11 Dec 2025 23:51:58 +0800
Subject: Add paint invalid area.

---
 include/cru/ui/controls/ControlHost.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'include/cru/ui/controls/ControlHost.h')

diff --git a/include/cru/ui/controls/ControlHost.h b/include/cru/ui/controls/ControlHost.h
index 5d0b7947..e6eb472d 100644
--- a/include/cru/ui/controls/ControlHost.h
+++ b/include/cru/ui/controls/ControlHost.h
@@ -23,6 +23,9 @@ class CRU_UI_API ControlHost : public Object {
   void ScheduleRepaint();
   void ScheduleRelayout();
 
+  Rect GetPaintInvalidArea();
+  void AddPaintInvalidArea(const Rect& area);
+
   void Repaint();
   void Relayout();
   void RelayoutWithSize(const Size& available_size = Size::Infinite(),
@@ -56,7 +59,7 @@ class CRU_UI_API ControlHost : public Object {
   std::unique_ptr<platform::gui::INativeWindow> CreateNativeWindow();
 
   void OnNativeDestroy(std::nullptr_t);
-  void OnNativePaint(std::nullptr_t);
+  void OnNativePaint1(const cru::platform::gui::NativePaintEventArgs& args);
   void OnNativeResize(const Size& size);
   void OnNativeFocus(cru::platform::gui::FocusChangeType focus);
   void OnNativeMouseEnterLeave(cru::platform::gui::MouseEnterLeaveType enter);
@@ -190,6 +193,8 @@ class CRU_UI_API ControlHost : public Object {
 
   bool layout_prefer_to_fill_window_;
 
+  Rect paint_invalid_area_;
+
   platform::gui::TimerAutoCanceler relayout_schedule_canceler_;
 };
 }  // namespace cru::ui::controls
-- 
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