1 files changed, 53 insertions, 0 deletions
diff --git a/chromium/ui/gfx/gdi_util.h b/chromium/ui/gfx/gdi_util.h
new file mode 100644
index 00000000000..fdf6a67bf20
--- /dev/null
+++ b/chromium/ui/gfx/gdi_util.h
@@ -0,0 +1,53 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_GFX_GDI_UTIL_H_
+#define UI_GFX_GDI_UTIL_H_
+
+#include <vector>
+#include <windows.h>
+
+#include "ui/base/ui_export.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/path.h"
+
+namespace gfx {
+
+// Creates a BITMAPINFOHEADER structure given the bitmap's size.
+UI_EXPORT void CreateBitmapHeader(int width, int height, BITMAPINFOHEADER* hdr);
+
+// Creates a BITMAPINFOHEADER structure given the bitmap's size and
+// color depth in bits per pixel.
+void CreateBitmapHeaderWithColorDepth(int width, int height, int color_depth,
+                                      BITMAPINFOHEADER* hdr);
+
+// Creates a BITMAPV4HEADER structure given the bitmap's size.  You probably
+// only need to use BMP V4 if you need transparency (alpha channel). This
+// function sets the AlphaMask to 0xff000000.
+UI_EXPORT void CreateBitmapV4Header(int width, int height, BITMAPV4HEADER* hdr);
+
+// Creates a monochrome bitmap header.
+void CreateMonochromeBitmapHeader(int width, int height, BITMAPINFOHEADER* hdr);
+
+// Modify the given hrgn by subtracting the given rectangles.
+UI_EXPORT void SubtractRectanglesFromRegion(
+    HRGN hrgn,
+    const std::vector<gfx::Rect>& cutouts);
+
+UI_EXPORT HRGN ConvertPathToHRGN(const gfx::Path& path);
+
+// Calculate scale to fit an entire page on DC.
+UI_EXPORT double CalculatePageScale(HDC dc, int page_width, int page_height);
+
+// Apply scaling to the DC.
+UI_EXPORT bool ScaleDC(HDC dc, double scale_factor);
+
+UI_EXPORT void StretchDIBits(HDC hdc,
+                             int dest_x, int dest_y, int dest_w, int dest_h,
+                             int src_x, int src_y, int src_w, int src_h,
+                             void* pixels, const BITMAPINFO* bitmap_info);
+
+}  // namespace gfx
+
+#endif  // UI_GFX_GDI_UTIL_H_