Add new views::LabelButton and LabelButtonBorder.

ui/views/controls/button/label_button_border.h

+// Copyright (c) 2012 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 UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_BORDER_H_
+#define UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_BORDER_H_
+
+#include "ui/gfx/image/image_skia.h"
+#include "ui/views/border.h"
+#include "ui/views/controls/button/custom_button.h"
+
+namespace views {
+
+class NativeThemeDelegate;
+
+// A Border that paints a LabelButton's background frame.
+class VIEWS_EXPORT LabelButtonBorder : public Border {
+ public:
+  explicit LabelButtonBorder(NativeThemeDelegate* delegate);
+  virtual ~LabelButtonBorder();
+
+  bool native_theme() const { return native_theme_; }
+  void set_native_theme(bool native_theme) { native_theme_ = native_theme; }
+
+ protected:
+  struct BorderImages {
+    BorderImages();
+    // |image_ids| must contain 9 image ids.
+    explicit BorderImages(const int image_ids[]);
+    ~BorderImages();
+
+    gfx::ImageSkia top_left;
+    gfx::ImageSkia top;
+    gfx::ImageSkia top_right;
+    gfx::ImageSkia left;
+    gfx::ImageSkia center;
+    gfx::ImageSkia right;
+    gfx::ImageSkia bottom_left;
+    gfx::ImageSkia bottom;
+    gfx::ImageSkia bottom_right;
+  };
+
+  // Set the image set shown for the specified button state.
+  void SetImages(CustomButton::ButtonState state, const BorderImages& images);
+
+ private:
+  // Overridden from Border:
+  virtual void Paint(const View& view, gfx::Canvas* canvas) const OVERRIDE;
+  virtual void GetInsets(gfx::Insets* insets) const OVERRIDE;
+
+  void PaintImages(const View& view,
+                   gfx::Canvas* canvas,
+                   CustomButton::ButtonState state) const;
+  void PaintNativeTheme(const View& view, gfx::Canvas* canvas) const;
+
+  // The images shown for each button state.
+  BorderImages images_[CustomButton::BS_COUNT];
+
+  // A delegate and flag controlling the native/Views theme styling.
+  NativeThemeDelegate* native_theme_delegate_;
+  bool native_theme_;
+
+  DISALLOW_COPY_AND_ASSIGN(LabelButtonBorder);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_BORDER_H_