| // Copyright (c) 2010 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. |
| |
| #include "app/resource_bundle.h" |
| |
| #include <gtk/gtk.h> |
| |
| #include "app/app_paths.h" |
| #include "base/base_paths.h" |
| #include "base/file_path.h" |
| #include "base/file_util.h" |
| #include "base/i18n/rtl.h" |
| #include "base/lock.h" |
| #include "base/logging.h" |
| #include "base/path_service.h" |
| #include "base/string_piece.h" |
| #include "base/string_util.h" |
| #include "gfx/font.h" |
| #include "gfx/gtk_util.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| |
| namespace { |
| |
| // Convert the raw image data into a GdkPixbuf. The GdkPixbuf that is returned |
| // has a ref count of 1 so the caller must call g_object_unref to free the |
| // memory. |
| GdkPixbuf* LoadPixbuf(RefCountedStaticMemory* data, bool rtl_enabled) { |
| ScopedGObject<GdkPixbufLoader>::Type loader(gdk_pixbuf_loader_new()); |
| bool ok = data && gdk_pixbuf_loader_write(loader.get(), |
| reinterpret_cast<const guint8*>(data->front()), data->size(), NULL); |
| if (!ok) |
| return NULL; |
| // Calling gdk_pixbuf_loader_close forces the data to be parsed by the |
| // loader. We must do this before calling gdk_pixbuf_loader_get_pixbuf. |
| ok = gdk_pixbuf_loader_close(loader.get(), NULL); |
| if (!ok) |
| return NULL; |
| GdkPixbuf* pixbuf = gdk_pixbuf_loader_get_pixbuf(loader.get()); |
| if (!pixbuf) |
| return NULL; |
| |
| if (base::i18n::IsRTL() && rtl_enabled) { |
| // |pixbuf| will get unreffed and destroyed (see below). The returned value |
| // has ref count 1. |
| return gdk_pixbuf_flip(pixbuf, TRUE); |
| } else { |
| // The pixbuf is owned by the loader, so add a ref so when we delete the |
| // loader (when the ScopedGObject goes out of scope), the pixbuf still |
| // exists. |
| g_object_ref(pixbuf); |
| return pixbuf; |
| } |
| } |
| |
| } // namespace |
| |
| void ResourceBundle::FreeGdkPixBufs() { |
| for (GdkPixbufMap::iterator i = gdk_pixbufs_.begin(); |
| i != gdk_pixbufs_.end(); i++) { |
| g_object_unref(i->second); |
| } |
| gdk_pixbufs_.clear(); |
| } |
| |
| // static |
| FilePath ResourceBundle::GetResourcesFilePath() { |
| FilePath resources_file_path; |
| PathService::Get(app::FILE_RESOURCES_PAK, &resources_file_path); |
| return resources_file_path; |
| } |
| |
| // static |
| FilePath ResourceBundle::GetLocaleFilePath(const std::string& app_locale) { |
| FilePath locale_file_path; |
| PathService::Get(app::DIR_LOCALES, &locale_file_path); |
| if (locale_file_path.empty()) |
| return locale_file_path; |
| if (app_locale.empty()) |
| return FilePath(); |
| locale_file_path = locale_file_path.AppendASCII(app_locale + ".pak"); |
| if (!file_util::PathExists(locale_file_path)) |
| return FilePath(); |
| return locale_file_path; |
| } |
| |
| GdkPixbuf* ResourceBundle::GetPixbufImpl(int resource_id, bool rtl_enabled) { |
| // Use the negative |resource_id| for the key for BIDI-aware images. |
| int key = rtl_enabled ? -resource_id : resource_id; |
| |
| // Check to see if we already have the pixbuf in the cache. |
| { |
| AutoLock lock_scope(*lock_); |
| GdkPixbufMap::const_iterator found = gdk_pixbufs_.find(key); |
| if (found != gdk_pixbufs_.end()) |
| return found->second; |
| } |
| |
| scoped_refptr<RefCountedStaticMemory> data( |
| LoadDataResourceBytes(resource_id)); |
| GdkPixbuf* pixbuf = LoadPixbuf(data.get(), rtl_enabled); |
| |
| // We loaded successfully. Cache the pixbuf. |
| if (pixbuf) { |
| AutoLock lock_scope(*lock_); |
| |
| // Another thread raced us, and has already cached the pixbuf. |
| if (gdk_pixbufs_.count(key)) { |
| g_object_unref(pixbuf); |
| return gdk_pixbufs_[key]; |
| } |
| |
| gdk_pixbufs_[key] = pixbuf; |
| return pixbuf; |
| } |
| |
| // We failed to retrieve the bitmap, show a debugging red square. |
| { |
| LOG(WARNING) << "Unable to load GdkPixbuf with id " << resource_id; |
| NOTREACHED(); // Want to assert in debug mode. |
| |
| AutoLock lock_scope(*lock_); // Guard empty_bitmap initialization. |
| |
| static GdkPixbuf* empty_bitmap = NULL; |
| if (!empty_bitmap) { |
| // The placeholder bitmap is bright red so people notice the problem. |
| // This bitmap will be leaked, but this code should never be hit. |
| scoped_ptr<SkBitmap> skia_bitmap(new SkBitmap()); |
| skia_bitmap->setConfig(SkBitmap::kARGB_8888_Config, 32, 32); |
| skia_bitmap->allocPixels(); |
| skia_bitmap->eraseARGB(255, 255, 0, 0); |
| empty_bitmap = gfx::GdkPixbufFromSkBitmap(skia_bitmap.get()); |
| } |
| return empty_bitmap; |
| } |
| } |
| |
| GdkPixbuf* ResourceBundle::GetPixbufNamed(int resource_id) { |
| return GetPixbufImpl(resource_id, false); |
| } |
| |
| GdkPixbuf* ResourceBundle::GetRTLEnabledPixbufNamed(int resource_id) { |
| return GetPixbufImpl(resource_id, true); |
| } |