1 files changed, 29 insertions, 2 deletions
diff --git a/src/osx/graphics/quartz/Image.cpp b/src/osx/graphics/quartz/Image.cpp
index db10da76..feddad8c 100644
--- a/src/osx/graphics/quartz/Image.cpp
+++ b/src/osx/graphics/quartz/Image.cpp
@@ -1,14 +1,17 @@
 #include "cru/osx/graphics/quartz/Image.h"
+#include "cru/common/Exception.h"
 #include "cru/osx/graphics/quartz/Convert.h"
+#include "cru/osx/graphics/quartz/Painter.h"
 
 namespace cru::platform::graphics::osx::quartz {
 QuartzImage::QuartzImage(IGraphicsFactory* graphics_factory,
                          IImageFactory* image_factory, CGImageRef image,
-                         bool auto_release)
+                         bool auto_release, unsigned char* buffer)
     : OsxQuartzResource(graphics_factory),
       image_factory_(image_factory),
       image_(image),
-      auto_release_(auto_release) {}
+      auto_release_(auto_release),
+      buffer_(buffer) {}
 
 QuartzImage::~QuartzImage() {
   if (auto_release_) {
@@ -26,4 +29,28 @@ std::unique_ptr<IImage> QuartzImage::CreateWithRect(const Rect& rect) {
   return std::make_unique<QuartzImage>(GetGraphicsFactory(), image_factory_,
                                        new_cg_image, true);
 }
+
+std::unique_ptr<IPainter> QuartzImage::CreatePainter() {
+  if (!buffer_)
+    throw Exception(
+        u"Failed to create painter for image because failed to get its "
+        u"buffer.");
+
+  auto width = CGImageGetWidth(image_);
+  auto height = CGImageGetHeight(image_);
+  auto bits_per_component = CGImageGetBitsPerComponent(image_);
+  auto bytes_per_row = CGImageGetBytesPerRow(image_);
+  auto color_space = CGImageGetColorSpace(image_);
+  auto bitmap_info = CGImageGetBitmapInfo(image_);
+
+  auto cg_context =
+      CGBitmapContextCreate(buffer_, width, height, bits_per_component,
+                            bytes_per_row, color_space, bitmap_info);
+
+  return std::make_unique<QuartzCGContextPainter>(
+      GetGraphicsFactory(), cg_context, true, Size(width, height),
+      [](QuartzCGContextPainter* painter) {
+
+      });
+}
 }  // namespace cru::platform::graphics::osx::quartz