1 // Copyright (c) 2011 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 "chrome/browser/themes/theme_service.h" 6 7 #include <gdk-pixbuf/gdk-pixbuf.h> 8 9 #include "base/i18n/rtl.h" 10 #include "base/logging.h" 11 #include "third_party/skia/include/core/SkBitmap.h" 12 #include "ui/gfx/gtk_util.h" 13 14 GdkPixbuf* ThemeService::GetPixbufNamed(int id) const { 15 return GetPixbufImpl(id, false); 16 } 17 18 GdkPixbuf* ThemeService::GetRTLEnabledPixbufNamed(int id) const { 19 return GetPixbufImpl(id, true); 20 } 21 22 GdkPixbuf* ThemeService::GetPixbufImpl(int id, bool rtl_enabled) const { 23 DCHECK(CalledOnValidThread()); 24 // Use the negative |resource_id| for the key for BIDI-aware images. 25 int key = rtl_enabled ? -id : id; 26 27 // Check to see if we already have the pixbuf in the cache. 28 GdkPixbufMap::const_iterator pixbufs_iter = gdk_pixbufs_.find(key); 29 if (pixbufs_iter != gdk_pixbufs_.end()) 30 return pixbufs_iter->second; 31 32 SkBitmap* bitmap = GetBitmapNamed(id); 33 GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(bitmap); 34 35 // We loaded successfully. Cache the pixbuf. 36 if (pixbuf) { 37 if (base::i18n::IsRTL() && rtl_enabled) { 38 GdkPixbuf* original_pixbuf = pixbuf; 39 pixbuf = gdk_pixbuf_flip(pixbuf, TRUE); 40 g_object_unref(original_pixbuf); 41 } 42 43 gdk_pixbufs_[key] = pixbuf; 44 return pixbuf; 45 } 46 47 // We failed to retrieve the bitmap, show a debugging red square. 48 LOG(WARNING) << "Unable to load GdkPixbuf with id " << id; 49 NOTREACHED(); // Want to assert in debug mode. 50 51 static GdkPixbuf* empty_bitmap = NULL; 52 if (!empty_bitmap) { 53 // The placeholder bitmap is bright red so people notice the problem. 54 // This bitmap will be leaked, but this code should never be hit. 55 scoped_ptr<SkBitmap> skia_bitmap(new SkBitmap()); 56 skia_bitmap->setConfig(SkBitmap::kARGB_8888_Config, 32, 32); 57 skia_bitmap->allocPixels(); 58 skia_bitmap->eraseARGB(255, 255, 0, 0); 59 empty_bitmap = gfx::GdkPixbufFromSkBitmap(skia_bitmap.get()); 60 } 61 return empty_bitmap; 62 } 63 64 void ThemeService::FreePlatformCaches() { 65 DCHECK(CalledOnValidThread()); 66 67 // Free GdkPixbufs. 68 for (GdkPixbufMap::iterator i = gdk_pixbufs_.begin(); 69 i != gdk_pixbufs_.end(); i++) { 70 g_object_unref(i->second); 71 } 72 gdk_pixbufs_.clear(); 73 } 74
