| OLD | NEW |
| (Empty) |
| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef UI_GFX_GDI_UTIL_H_ | |
| 6 #define UI_GFX_GDI_UTIL_H_ | |
| 7 | |
| 8 #include <vector> | |
| 9 #include <windows.h> | |
| 10 | |
| 11 #include "ui/gfx/gfx_export.h" | |
| 12 #include "ui/gfx/rect.h" | |
| 13 #include "ui/gfx/path.h" | |
| 14 | |
| 15 namespace gfx { | |
| 16 | |
| 17 // Creates a BITMAPINFOHEADER structure given the bitmap's size. | |
| 18 GFX_EXPORT void CreateBitmapHeader(int width, int height, | |
| 19 BITMAPINFOHEADER* hdr); | |
| 20 | |
| 21 // Creates a BITMAPV4HEADER structure given the bitmap's size. You probably | |
| 22 // only need to use BMP V4 if you need transparency (alpha channel). This | |
| 23 // function sets the AlphaMask to 0xff000000. | |
| 24 GFX_EXPORT void CreateBitmapV4Header(int width, int height, | |
| 25 BITMAPV4HEADER* hdr); | |
| 26 | |
| 27 // Creates a monochrome bitmap header. | |
| 28 void CreateMonochromeBitmapHeader(int width, int height, BITMAPINFOHEADER* hdr); | |
| 29 | |
| 30 // Modify the given hrgn by subtracting the given rectangles. | |
| 31 GFX_EXPORT void SubtractRectanglesFromRegion( | |
| 32 HRGN hrgn, | |
| 33 const std::vector<gfx::Rect>& cutouts); | |
| 34 | |
| 35 GFX_EXPORT HRGN ConvertPathToHRGN(const gfx::Path& path); | |
| 36 | |
| 37 // Calculate scale to fit an entire page on DC. | |
| 38 GFX_EXPORT float CalculatePageScale(HDC dc, int page_width, int page_height); | |
| 39 | |
| 40 // Apply scaling to the DC. | |
| 41 GFX_EXPORT bool ScaleDC(HDC dc, float scale_factor); | |
| 42 | |
| 43 GFX_EXPORT void StretchDIBits(HDC hdc, | |
| 44 int dest_x, int dest_y, int dest_w, int dest_h, | |
| 45 int src_x, int src_y, int src_w, int src_h, | |
| 46 void* pixels, const BITMAPINFO* bitmap_info); | |
| 47 | |
| 48 } // namespace gfx | |
| 49 | |
| 50 #endif // UI_GFX_GDI_UTIL_H_ | |
| OLD | NEW |