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// Copyright 2014 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_UI_LIBGTK2UI_GTK2_BORDER_H_
#define CHROME_BROWSER_UI_LIBGTK2UI_GTK2_BORDER_H_
#include "base/scoped_observer.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/native_theme/native_theme.h"
#include "ui/native_theme/native_theme_observer.h"
#include "ui/views/border.h"
#include "ui/views/controls/button/button.h"
namespace gfx {
class Canvas;
}
namespace views {
class LabelButton;
class LabelButtonBorder;
}
namespace libgtk2ui {
class Gtk2UI;
// Draws a gtk button border, and manages the memory of the resulting pixbufs.
class Gtk2Border : public views::Border, public ui::NativeThemeObserver {
public:
Gtk2Border(Gtk2UI* gtk2_ui,
views::LabelButton* owning_button,
scoped_ptr<views::LabelButtonBorder> border);
~Gtk2Border() override;
// Overridden from views::Border:
void Paint(const views::View& view, gfx::Canvas* canvas) override;
gfx::Insets GetInsets() const override;
gfx::Size GetMinimumSize() const override;
// Overridden from views::NativeThemeChangeObserver:
void OnNativeThemeUpdated(ui::NativeTheme* observed_theme) override;
private:
void PaintState(const ui::NativeTheme::State state,
const ui::NativeTheme::ExtraParams& extra,
const gfx::Rect& rect,
gfx::Canvas* canvas);
Gtk2UI* gtk2_ui_;
gfx::ImageSkia button_images_[2][views::Button::STATE_COUNT];
// The view to which we are a border. We keep track of this so that we can
// force invalidate the layout on theme changes.
views::LabelButton* owning_button_;
// The views::Border that we are replacing in native mode. We keep track of
// this for inset information.
scoped_ptr<views::LabelButtonBorder> border_;
ScopedObserver<ui::NativeTheme, ui::NativeThemeObserver> observer_manager_;
DISALLOW_COPY_AND_ASSIGN(Gtk2Border);
};
} // namespace libgtk2ui
#endif // CHROME_BROWSER_UI_LIBGTK2UI_GTK2_BORDER_H_
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