Gtk: Implement font selection options.

chrome/browser/gtk/options/fonts_page_gtk.h

+// 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.
+
+// The fonts page of the fonts & languages options dialog, which contains font
+// family and size settings, as well as the default encoding option.
+
+#ifndef CHROME_BROWSER_GTK_OPTIONS_FONTS_PAGE_GTK_H_
+#define CHROME_BROWSER_GTK_OPTIONS_FONTS_PAGE_GTK_H_
+
+#include <gtk/gtk.h>
+
+#include "chrome/browser/options_page_base.h"
+#include "chrome/common/pref_member.h"
+
+class FontsPageGtk : public OptionsPageBase {
+ public:
+  explicit FontsPageGtk(Profile* profile);
+  virtual ~FontsPageGtk();
+
+  GtkWidget* get_page_widget() const {
+    return page_;
+  }
+
+ private:
+  void Init();
+
+  // Overridden from OptionsPageBase.
+  virtual void NotifyPrefChanged(const std::wstring* pref_name);
+
+  // Retrieve the font selection from the button and save it to the prefs.  Also
+  // ensure the button(s) are displayed in the proper size, as the
+  // GtkFontSelector returns the value in points not pixels.
+  void SetFontsFromButton(StringPrefMember* name_pref,
+                          IntegerPrefMember* size_pref,
+                          GtkFontButton* font_button);
+
+  // Callbacks
+  static void OnSerifFontSet(GtkFontButton* font_button,
+                             FontsPageGtk* fonts_page);
+  static void OnSansFontSet(GtkFontButton* font_button,
+                            FontsPageGtk* fonts_page);
+  static void OnFixedFontSet(GtkFontButton* font_button,
+                             FontsPageGtk* fonts_page);
+
+  // The font chooser widgets
+  GtkWidget* serif_font_button_;
+  GtkWidget* sans_font_button_;
+  GtkWidget* fixed_font_button_;
+
+  // The widget containing the options for this page.
+  GtkWidget* page_;
+
+  // Font name preferences.
+  StringPrefMember serif_name_;
+  StringPrefMember sans_serif_name_;
+  StringPrefMember fixed_width_name_;
+
+  // Font size preferences, in pixels.
+  IntegerPrefMember variable_width_size_;
+  IntegerPrefMember fixed_width_size_;
+
+  // Default encoding preference.
+  StringPrefMember default_encoding_;
+
+  DISALLOW_COPY_AND_ASSIGN(FontsPageGtk);
+};
+
+
+#endif  // #ifndef CHROME_BROWSER_GTK_OPTIONS_FONTS_PAGE_GTK_H_