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// 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.
#ifndef CHROME_BROWSER_GTK_CUSTOM_BUTTON_H_
#define CHROME_BROWSER_GTK_CUSTOM_BUTTON_H_
#include <gtk/gtk.h>
#include <string>
#include "base/gfx/rect.h"
#include "base/scoped_ptr.h"
#include "chrome/common/owned_widget_gtk.h"
class NineBox;
// These classes implement two kinds of custom-drawn buttons. They're
// used on the toolbar and the bookmarks bar.
// CustomDrawButtonBase provides the base for building a custom drawn button.
// It handles managing the pixbufs containing all the static images used to draw
// the button. It also manages painting these pixbufs.
class CustomDrawButtonBase {
public:
CustomDrawButtonBase(int normal_id,
int active_id,
int highlight_id,
int depressed_id);
~CustomDrawButtonBase();
GdkPixbuf* pixbufs(int i) const { return pixbufs_[i]; }
gboolean OnExpose(GtkWidget* widget, GdkEventExpose* e);
private:
// We store one GdkPixbuf* for each possible state of the button;
// INSENSITIVE is the last available state;
GdkPixbuf* pixbufs_[GTK_STATE_INSENSITIVE + 1];
DISALLOW_COPY_AND_ASSIGN(CustomDrawButtonBase);
};
// CustomDrawButton is a plain button where all its various states are drawn
// with static images.
class CustomDrawButton {
public:
// The constructor takes 4 resource ids. If a resource doesn't exist for a
// button, pass in 0.
CustomDrawButton(int normal_id,
int active_id,
int highlight_id,
int depressed_id);
explicit CustomDrawButton(const std::string& filename);
~CustomDrawButton();
GtkWidget* widget() const { return widget_.get(); }
gfx::Rect bounds() const {
return gfx::Rect(widget_.get()->allocation.x,
widget_.get()->allocation.y,
widget_.get()->allocation.width,
widget_.get()->allocation.height);
}
int width() const { return widget_.get()->allocation.width; }
// This is a convenience function for creating a widget that closes
// a bar (find bar, download shelf, info bars). The button will be packed in
// |hbox|.
// The caller is responsible for destroying the returned CustomDrawButton.
static CustomDrawButton* AddBarCloseButton(GtkWidget* hbox, int padding);
private:
// Callback for expose, used to draw the custom graphics.
static gboolean OnExpose(GtkWidget* widget,
GdkEventExpose* e,
CustomDrawButton* obj);
// The actual button widget.
OwnedWidgetGtk widget_;
CustomDrawButtonBase button_base_;
DISALLOW_COPY_AND_ASSIGN(CustomDrawButton);
};
#endif // CHROME_BROWSER_GTK_CUSTOM_BUTTON_H_
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