Sidebar mini tabs UI (views version)....

chrome/browser/ui/views/sidebar/sidebar_tab.h

+// Copyright (c) 2010 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_VIEWS_SIDEBAR_SIDEBAR_TAB_H_
+#define CHROME_BROWSER_UI_VIEWS_SIDEBAR_SIDEBAR_TAB_H_
+#pragma once
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/scoped_ptr.h"
+#include "chrome/browser/ui/views/sidebar/sidebar_base_tab.h"
+#include "gfx/point.h"
+
+namespace ui {
+class SlideAnimation;
+}  // namespace ui
+
+// A View that renders a SidebarTab in a SidebarTabStrip.
+// Does the actual layout and painting, loads the actual image resources.
+class SidebarTab : public SidebarBaseTab {
+ public:
+  static const char kViewClassName[];
+
+  explicit SidebarTab(SidebarTabController* controller);
+  virtual ~SidebarTab();
+
+  // SidebarBaseTab overrides:
+  virtual void GetShape(gfx::Path* shape) const;
+
+  // Returns the minimum possible size of a single unselected tab.
+  static gfx::Size GetMinimumUnselectedSize();
+  // Returns the minimum possible size of a selected tab. Selected tabs must
+  // always have a larger minimum size than unselected tabs.
+  static gfx::Size GetMinimumSelectedSize();
+  // Returns the preferred size of a single tab, assuming space is
+  // available.
+  static gfx::Size GetStandardSize();
+
+ protected:
+  // SidebarBaseTab overrides:
+  virtual void DataChanged(const SidebarTabRendererData& old_data) OVERRIDE;
+
+ private:
+  struct TabImage;
+  struct TabImages;
+
+  // Overridden from views::View:
+  virtual void Paint(gfx::Canvas* canvas) OVERRIDE;
+  virtual void Layout() OVERRIDE;
+  virtual void OnThemeChanged() OVERRIDE;
+  virtual std::string GetClassName() const OVERRIDE { return kViewClassName; }
+  virtual bool HasHitTestMask() const OVERRIDE;
+  virtual void GetHitTestMask(gfx::Path* path) const OVERRIDE;
+  virtual bool GetTooltipTextOrigin(const gfx::Point& p,
+                                    gfx::Point* origin) OVERRIDE;
+
+  // Returns cached tab background images.
+  static TabImages& tab_images();
+
+  // Paint various portions of the tab
+  void PaintTabBackground(gfx::Canvas* canvas);
+  void PaintTabBackgroundImage(gfx::Canvas* canvas, bool as_active);
+  // Paints the icon. Most of the time you'll want to invoke Paint directly, but
+  // in certain situations this invoked outside of Paint.
+  void PaintIcon(gfx::Canvas* canvas);
+  // Paints badge text.
+  void PaintBadge(gfx::Canvas* canvas);
+
+  // The bounds of the various sections of the display.
+  gfx::Rect icon_bounds_;
+
+  // Hover animation.
+  scoped_ptr<ui::SlideAnimation> hover_animation_;
+
+  DISALLOW_COPY_AND_ASSIGN(SidebarTab);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_SIDEBAR_SIDEBAR_TAB_H_
+