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 "ui/base/layout.h" 11 #include "ui/base/resource/resource_bundle.h" 12 #include "ui/base/resource/resource_data_dll_win.h" 13 #include "ui/gfx/win/dpi.h" 14 15 namespace ui { 16 17 namespace { 18 19 HINSTANCE resources_data_dll; 20 21 HINSTANCE GetCurrentResourceDLL() { 22 if (resources_data_dll) 23 return resources_data_dll; 24 return GetModuleHandle(NULL); 25 } 26 27 base::FilePath GetResourcesPakFilePath(const std::string& pak_name) { 28 base::FilePath path; 29 if (PathService::Get(base::DIR_MODULE, &path)) 30 return path.AppendASCII(pak_name.c_str()); 31 32 // Return just the name of the pack file. 33 return base::FilePath(ASCIIToUTF16(pak_name)); 34 } 35 36 } // namespace 37 38 void ResourceBundle::LoadCommonResources() { 39 // As a convenience, add the current resource module as a data packs. 40 data_packs_.push_back(new ResourceDataDLL(GetCurrentResourceDLL())); 41 // Have high-DPI resources for 140% and 180% scaling on Windows based on 42 // default scaling for Metro mode. If high-DPI mode is enabled, load resource 43 // pak closest to the desired scale factor. The high-DPI resources are 44 // scaled up from 100% touch. 45 float scale = gfx::win::GetDeviceScaleFactor(); 46 bool force_touch_resources = false; 47 switch(ui::GetSupportedScaleFactor(scale)) { 48 case ui::SCALE_FACTOR_180P: 49 AddDataPackFromPath(GetResourcesPakFilePath( 50 "chrome_touch_180_percent.pak"), 51 SCALE_FACTOR_180P); 52 force_touch_resources = true; 53 break; 54 case ui::SCALE_FACTOR_140P: 55 AddDataPackFromPath(GetResourcesPakFilePath( 56 "chrome_touch_140_percent.pak"), 57 SCALE_FACTOR_140P); 58 force_touch_resources = true; 59 } 60 // TODO(kevers|girard): Remove loading of 1x resources when in high-DPI 61 // mode once all resources are available at 140% and 180%. 62 if (ui::GetDisplayLayout() == ui::LAYOUT_TOUCH || force_touch_resources) { 63 AddDataPackFromPath( 64 GetResourcesPakFilePath("chrome_touch_100_percent.pak"), 65 SCALE_FACTOR_100P); 66 } else { 67 AddDataPackFromPath( 68 GetResourcesPakFilePath("chrome_100_percent.pak"), 69 SCALE_FACTOR_100P); 70 } 71 } 72 73 gfx::Image& ResourceBundle::GetNativeImageNamed(int resource_id, ImageRTL rtl) { 74 // Flipped image is not used on Windows. 75 DCHECK_EQ(rtl, RTL_DISABLED); 76 77 // Windows only uses SkBitmap for gfx::Image, so this is the same as 78 // GetImageNamed. 79 return GetImageNamed(resource_id); 80 } 81 82 void SetResourcesDataDLL(HINSTANCE handle) { 83 resources_data_dll = handle; 84 } 85 86 HICON LoadThemeIconFromResourcesDataDLL(int icon_id) { 87 return ::LoadIcon(GetCurrentResourceDLL(), MAKEINTRESOURCE(icon_id)); 88 } 89 90 } // namespace ui; 91