Delete the GTK+ port of Chrome.

ui/gfx/gtk_util.cc

-// Copyright (c) 2012 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 "ui/gfx/gtk_util.h"
-
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
-#include <stdlib.h>
-
-#include "base/basictypes.h"
-#include "base/command_line.h"
-#include "base/memory/scoped_ptr.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkUnPreMultiply.h"
-#include "ui/gfx/rect.h"
-
-namespace {
-
-// A process wide singleton that manages our usage of gdk cursors.
-// gdk_cursor_new() hits the disk in several places and GdkCursor instances can
-// be reused throughout the process.
-class GdkCursorCache {
- public:
-  GdkCursorCache() {}
-  ~GdkCursorCache() {
-    for (GdkCursorMap::iterator i(cursors_.begin()); i != cursors_.end(); ++i) {
-      gdk_cursor_unref(i->second);
-    }
-    cursors_.clear();
-  }
-
-  GdkCursor* GetCursorImpl(GdkCursorType type) {
-    GdkCursorMap::iterator it = cursors_.find(type);
-    GdkCursor* cursor = NULL;
-    if (it == cursors_.end()) {
-      cursor = gdk_cursor_new(type);
-      cursors_.insert(std::make_pair(type, cursor));
-    } else {
-      cursor = it->second;
-    }
-
-    // It is not necessary to add a reference here. The callers can ref the
-    // cursor if they need it for something.
-    return cursor;
-  }
-
- private:
-  typedef std::map<GdkCursorType, GdkCursor*> GdkCursorMap;
-  GdkCursorMap cursors_;
-
-  DISALLOW_COPY_AND_ASSIGN(GdkCursorCache);
-};
-
-}  // namespace
-
-namespace gfx {
-
-static void CommonInitFromCommandLine(const CommandLine& command_line,
-                                      void (*init_func)(gint*, gchar***)) {
-  const std::vector<std::string>& args = command_line.argv();
-  int argc = args.size();
-  scoped_ptr<char *[]> argv(new char *[argc + 1]);
-  for (size_t i = 0; i < args.size(); ++i) {
-    // TODO(piman@google.com): can gtk_init modify argv? Just being safe
-    // here.
-    argv[i] = strdup(args[i].c_str());
-  }
-  argv[argc] = NULL;
-  char **argv_pointer = argv.get();
-
-  init_func(&argc, &argv_pointer);
-  for (size_t i = 0; i < args.size(); ++i) {
-    free(argv[i]);
-  }
-}
-
-void GtkInitFromCommandLine(const CommandLine& command_line) {
-  CommonInitFromCommandLine(command_line, gtk_init);
-}
-
-void GdkInitFromCommandLine(const CommandLine& command_line) {
-  CommonInitFromCommandLine(command_line, gdk_init);
-}
-
-GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) {
-  if (bitmap.isNull())
-    return NULL;
-
-  SkAutoLockPixels lock_pixels(bitmap);
-
-  int width = bitmap.width();
-  int height = bitmap.height();
-
-  GdkPixbuf* pixbuf = gdk_pixbuf_new(
-      GDK_COLORSPACE_RGB,  // The only colorspace gtk supports.
-      TRUE,  // There is an alpha channel.
-      8,
-      width, height);
-
-  // SkBitmaps are premultiplied, we need to unpremultiply them.
-  const int kBytesPerPixel = 4;
-  uint8* divided = gdk_pixbuf_get_pixels(pixbuf);
-
-  for (int y = 0, i = 0; y < height; y++) {
-    for (int x = 0; x < width; x++) {
-      uint32 pixel = bitmap.getAddr32(0, y)[x];
-
-      int alpha = SkColorGetA(pixel);
-      if (alpha != 0 && alpha != 255) {
-        SkColor unmultiplied = SkUnPreMultiply::PMColorToColor(pixel);
-        divided[i + 0] = SkColorGetR(unmultiplied);
-        divided[i + 1] = SkColorGetG(unmultiplied);
-        divided[i + 2] = SkColorGetB(unmultiplied);
-        divided[i + 3] = alpha;
-      } else {
-        divided[i + 0] = SkColorGetR(pixel);
-        divided[i + 1] = SkColorGetG(pixel);
-        divided[i + 2] = SkColorGetB(pixel);
-        divided[i + 3] = alpha;
-      }
-      i += kBytesPerPixel;
-    }
-  }
-
-  return pixbuf;
-}
-
-void SubtractRectanglesFromRegion(GdkRegion* region,
-                                  const std::vector<Rect>& cutouts) {
-  for (size_t i = 0; i < cutouts.size(); ++i) {
-    GdkRectangle rect = cutouts[i].ToGdkRectangle();
-    GdkRegion* rect_region = gdk_region_rectangle(&rect);
-    gdk_region_subtract(region, rect_region);
-    // TODO(deanm): It would be nice to be able to reuse the GdkRegion here.
-    gdk_region_destroy(rect_region);
-  }
-}
-
-GdkCursor* GetCursor(int type) {
-  CR_DEFINE_STATIC_LOCAL(GdkCursorCache, impl, ());
-  return impl.GetCursorImpl(static_cast<GdkCursorType>(type));
-}
-
-void InitRCStyles() {
-  static const char kRCText[] =
-      // Make our dialogs styled like the GNOME HIG.
-      //
-      // TODO(evanm): content-area-spacing was introduced in a later
-      // version of GTK, so we need to set that manually on all dialogs.
-      // Perhaps it would make sense to have a shared FixupDialog() function.
-      "style \"gnome-dialog\" {\n"
-      "  xthickness = 12\n"
-      "  GtkDialog::action-area-border = 0\n"
-      "  GtkDialog::button-spacing = 6\n"
-      "  GtkDialog::content-area-spacing = 18\n"
-      "  GtkDialog::content-area-border = 12\n"
-      "}\n"
-      // Note we set it at the "application" priority, so users can override.
-      "widget \"GtkDialog\" style : application \"gnome-dialog\"\n"
-
-      // Make our about dialog special, so the image is flush with the edge.
-      "style \"about-dialog\" {\n"
-      "  GtkDialog::action-area-border = 12\n"
-      "  GtkDialog::button-spacing = 6\n"
-      "  GtkDialog::content-area-spacing = 18\n"
-      "  GtkDialog::content-area-border = 0\n"
-      "}\n"
-      "widget \"about-dialog\" style : application \"about-dialog\"\n";
-
-  gtk_rc_parse_string(kRCText);
-}
-
-base::TimeDelta GetCursorBlinkCycle() {
-  // From http://library.gnome.org/devel/gtk/unstable/GtkSettings.html, this is
-  // the default value for gtk-cursor-blink-time.
-  static const gint kGtkDefaultCursorBlinkTime = 1200;
-
-  gint cursor_blink_time = kGtkDefaultCursorBlinkTime;
-  gboolean cursor_blink = TRUE;
-  g_object_get(gtk_settings_get_default(),
-               "gtk-cursor-blink-time", &cursor_blink_time,
-               "gtk-cursor-blink", &cursor_blink,
-               NULL);
-  return cursor_blink ?
-         base::TimeDelta::FromMilliseconds(cursor_blink_time) :
-         base::TimeDelta();
-}
-
-}  // namespace gfx