From 24a636954a25e938c079d88f48ee01143d667cfb Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 2 Oct 2021 16:44:32 +0800
Subject: ...

---
 src/osx/gui/Window.mm | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'src/osx/gui')

diff --git a/src/osx/gui/Window.mm b/src/osx/gui/Window.mm
index 52cc3934..239e175a 100644
--- a/src/osx/gui/Window.mm
+++ b/src/osx/gui/Window.mm
@@ -1,9 +1,11 @@
 #include "cru/osx/gui/Window.hpp"
 
+#include "cru/osx/graphics/quartz/Painter.hpp"
 #include "cru/osx/gui/UiApplication.hpp"
-#include "cru/platform/gui/Base.hpp"
 
+#include <AppKit/NSGraphicsContext.h>
 #include <AppKit/NSWindow.h>
+#include <memory>
 
 namespace cru::platform::gui::osx {
 namespace details {
@@ -112,6 +114,16 @@ void OsxWindow::SetWindowRect(const Rect& rect) {
   }
 }
 
+std::unique_ptr<graphics::IPainter> OsxWindow::BeginPaint() {
+  NSGraphicsContext* ns_graphics_context =
+      [NSGraphicsContext graphicsContextWithWindow:p_->window_];
+
+  CGContextRef cg_context = [ns_graphics_context CGContext];
+
+  return std::make_unique<cru::platform::graphics::osx::quartz::QuartzCGContextPainter>(
+      GetUiApplication()->GetGraphicsFactory(), cg_context, true, GetClientSize());
+}
+
 void OsxWindow::CreateWindow() {
   NSRect content_rect{p_->content_rect_.left, p_->content_rect_.top, p_->content_rect_.width,
                       p_->content_rect_.height};
-- 
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