Move src/gfx/ to src/ui/gfx...

gfx/gtk_util.cc

-// Copyright (c) 2009 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 "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/linux_util.h"
-#include "gfx/rect.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkUnPreMultiply.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 (std::map<GdkCursorType, GdkCursor*>::iterator it =
-        cursor_cache_.begin(); it != cursor_cache_.end(); ++it) {
-      gdk_cursor_unref(it->second);
-    }
-    cursor_cache_.clear();
-  }
-
-  GdkCursor* GetCursorImpl(GdkCursorType type) {
-    std::map<GdkCursorType, GdkCursor*>::iterator it = cursor_cache_.find(type);
-    GdkCursor* cursor = NULL;
-    if (it == cursor_cache_.end()) {
-      cursor = gdk_cursor_new(type);
-      cursor_cache_.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;
-  }
-
-  std::map<GdkCursorType, GdkCursor*> cursor_cache_;
-
-  DISALLOW_COPY_AND_ASSIGN(GdkCursorCache);
-};
-
-void FreePixels(guchar* pixels, gpointer data) {
-  free(data);
-}
-
-// Common implementation of ConvertAcceleratorsFromWindowsStyle() and
-// RemoveWindowsStyleAccelerators().
-// Replaces all ampersands (as used in our grd files to indicate mnemonics)
-// to |target|. Similarly any underscores get replaced with two underscores as
-// is needed by pango.
-std::string ConvertAmperstandsTo(const std::string& label,
-                                 const std::string& target) {
-  std::string ret;
-  ret.reserve(label.length() * 2);
-  for (size_t i = 0; i < label.length(); ++i) {
-    if ('_' == label[i]) {
-      ret.push_back('_');
-      ret.push_back('_');
-    } else if ('&' == label[i]) {
-      if (i + 1 < label.length() && '&' == label[i + 1]) {
-        ret.push_back('&');
-        ++i;
-      } else {
-        ret.append(target);
-      }
-    } else {
-      ret.push_back(label[i]);
-    }
-  }
-
-  return ret;
-}
-
-}  // namespace
-
-namespace gfx {
-
-void GtkInitFromCommandLine(const CommandLine& command_line) {
-  const std::vector<std::string>& args = command_line.argv();
-  int argc = args.size();
-  scoped_array<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();
-
-  gtk_init(&argc, &argv_pointer);
-  for (size_t i = 0; i < args.size(); ++i) {
-    free(argv[i]);
-  }
-}
-
-GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap* bitmap) {
-  if (bitmap->isNull())
-    return NULL;
-
-  bitmap->lockPixels();
-
-  int width = bitmap->width();
-  int height = bitmap->height();
-  int stride = bitmap->rowBytes();
-
-  // SkBitmaps are premultiplied, we need to unpremultiply them.
-  const int kBytesPerPixel = 4;
-  uint8* divided = static_cast<uint8*>(malloc(height * stride));
-
-  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;
-    }
-  }
-
-  // This pixbuf takes ownership of our malloc()ed data and will
-  // free it for us when it is destroyed.
-  GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(
-      divided,
-      GDK_COLORSPACE_RGB,  // The only colorspace gtk supports.
-      true,  // There is an alpha channel.
-      8,
-      width, height, stride, &FreePixels, divided);
-
-  bitmap->unlockPixels();
-  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);
-  }
-}
-
-double GetPangoResolution() {
-  static double resolution;
-  static bool determined_resolution = false;
-  if (!determined_resolution) {
-    determined_resolution = true;
-    PangoContext* default_context = gdk_pango_context_get();
-    resolution = pango_cairo_context_get_resolution(default_context);
-    g_object_unref(default_context);
-  }
-  return resolution;
-}
-
-GdkCursor* GetCursor(int type) {
-  static GdkCursorCache impl;
-  return impl.GetCursorImpl(static_cast<GdkCursorType>(type));
-}
-
-std::string ConvertAcceleratorsFromWindowsStyle(const std::string& label) {
-  return ConvertAmperstandsTo(label, "_");
-}
-
-std::string RemoveWindowsStyleAccelerators(const std::string& label) {
-  return ConvertAmperstandsTo(label, "");
-}
-
-uint8_t* BGRAToRGBA(const uint8_t* pixels, int width, int height, int stride) {
-  if (stride == 0)
-    stride = width * 4;
-
-  uint8_t* new_pixels = static_cast<uint8_t*>(malloc(height * stride));
-
-  // We have to copy the pixels and swap from BGRA to RGBA.
-  for (int i = 0; i < height; ++i) {
-    for (int j = 0; j < width; ++j) {
-      int idx = i * stride + j * 4;
-      new_pixels[idx] = pixels[idx + 2];
-      new_pixels[idx + 1] = pixels[idx + 1];
-      new_pixels[idx + 2] = pixels[idx];
-      new_pixels[idx + 3] = pixels[idx + 3];
-    }
-  }
-
-  return new_pixels;
-}
-
-}  // namespace gfx