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      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 #include "ui/base/resource/resource_bundle_win.h"
      6 
      7 #include "base/logging.h"
      8 #include "base/path_service.h"
      9 #include "base/strings/utf_string_conversions.h"
     10 #include "skia/ext/image_operations.h"
     11 #include "ui/base/layout.h"
     12 #include "ui/base/resource/resource_bundle.h"
     13 #include "ui/base/resource/resource_data_dll_win.h"
     14 #include "ui/gfx/geometry/size_conversions.h"
     15 #include "ui/gfx/image/image_skia.h"
     16 #include "ui/gfx/image/image_skia_source.h"
     17 #include "ui/gfx/win/dpi.h"
     18 
     19 namespace ui {
     20 
     21 namespace {
     22 
     23 HINSTANCE resources_data_dll;
     24 
     25 HINSTANCE GetCurrentResourceDLL() {
     26   if (resources_data_dll)
     27     return resources_data_dll;
     28   return GetModuleHandle(NULL);
     29 }
     30 
     31 base::FilePath GetResourcesPakFilePath(const std::string& pak_name) {
     32   base::FilePath path;
     33   if (PathService::Get(base::DIR_MODULE, &path))
     34     return path.AppendASCII(pak_name.c_str());
     35 
     36   // Return just the name of the pack file.
     37   return base::FilePath(base::ASCIIToUTF16(pak_name));
     38 }
     39 
     40 }  // namespace
     41 
     42 void ResourceBundle::LoadCommonResources() {
     43   // As a convenience, add the current resource module as a data packs.
     44   data_packs_.push_back(new ResourceDataDLL(GetCurrentResourceDLL()));
     45 
     46   if (IsScaleFactorSupported(SCALE_FACTOR_100P)) {
     47     AddDataPackFromPath(
     48         GetResourcesPakFilePath("chrome_100_percent.pak"),
     49         SCALE_FACTOR_100P);
     50   }
     51   if (IsScaleFactorSupported(SCALE_FACTOR_200P)) {
     52     DCHECK(gfx::IsHighDPIEnabled());
     53     AddDataPackFromPath(
     54         GetResourcesPakFilePath("chrome_200_percent.pak"),
     55         SCALE_FACTOR_200P);
     56   }
     57 }
     58 
     59 gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id, ImageRTL rtl) {
     60   // Flipped image is not used on Windows.
     61   DCHECK_EQ(rtl, RTL_DISABLED);
     62 
     63   // Windows only uses SkBitmap for gfx::Image, so this is the same as
     64   // GetImageNamed.
     65   return GetImageNamed(resource_id);
     66 }
     67 
     68 void SetResourcesDataDLL(HINSTANCE handle) {
     69   resources_data_dll = handle;
     70 }
     71 
     72 HICON LoadThemeIconFromResourcesDataDLL(int icon_id) {
     73   return ::LoadIcon(GetCurrentResourceDLL(), MAKEINTRESOURCE(icon_id));
     74 }
     75 
     76 }  // namespace ui;
     77