// Copyright (c) 2011 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 "chrome/browser/themes/theme_service.h" #include <gdk-pixbuf/gdk-pixbuf.h> #include "base/i18n/rtl.h" #include "base/logging.h" #include "third_party/skia/include/core/SkBitmap.h" #include "ui/gfx/gtk_util.h" GdkPixbuf* ThemeService::GetPixbufNamed(int id) const { return GetPixbufImpl(id, false); } GdkPixbuf* ThemeService::GetRTLEnabledPixbufNamed(int id) const { return GetPixbufImpl(id, true); } GdkPixbuf* ThemeService::GetPixbufImpl(int id, bool rtl_enabled) const { DCHECK(CalledOnValidThread()); // Use the negative |resource_id| for the key for BIDI-aware images. int key = rtl_enabled ? -id : id; // Check to see if we already have the pixbuf in the cache. GdkPixbufMap::const_iterator pixbufs_iter = gdk_pixbufs_.find(key); if (pixbufs_iter != gdk_pixbufs_.end()) return pixbufs_iter->second; SkBitmap* bitmap = GetBitmapNamed(id); GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(bitmap); // We loaded successfully. Cache the pixbuf. if (pixbuf) { if (base::i18n::IsRTL() && rtl_enabled) { GdkPixbuf* original_pixbuf = pixbuf; pixbuf = gdk_pixbuf_flip(pixbuf, TRUE); g_object_unref(original_pixbuf); } 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 " << id; NOTREACHED(); // Want to assert in debug mode. 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; } void ThemeService::FreePlatformCaches() { DCHECK(CalledOnValidThread()); // Free GdkPixbufs. for (GdkPixbufMap::iterator i = gdk_pixbufs_.begin(); i != gdk_pixbufs_.end(); i++) { g_object_unref(i->second); } gdk_pixbufs_.clear(); }