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// 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 <windows.h>
#include <vector>
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/gfx_export.h"
namespace gfx {
// 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, meaning this header is for a
// 32-bits-per-pixel ARGB8888 bitmap.
GFX_EXPORT void CreateBitmapV4HeaderForARGB888(int width,
int height,
BITMAPV4HEADER* hdr);
// Calculate scale to fit an entire page on DC.
GFX_EXPORT float CalculatePageScale(HDC dc, int page_width, int page_height);
// Apply scaling to the DC.
GFX_EXPORT bool ScaleDC(HDC dc, float scale_factor);
} // namespace gfx
#endif // UI_GFX_GDI_UTIL_H_
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