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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef UI_VIEWS_EXAMPLES_EXAMPLE_BASE_H_
      6 #define UI_VIEWS_EXAMPLES_EXAMPLE_BASE_H_
      7 
      8 #include <string>
      9 
     10 #include "base/macros.h"
     11 #include "ui/views/examples/views_examples_export.h"
     12 
     13 namespace views {
     14 class View;
     15 
     16 namespace examples {
     17 
     18 class VIEWS_EXAMPLES_EXPORT ExampleBase {
     19  public:
     20   virtual ~ExampleBase();
     21 
     22   // Sub-classes should creates and add the views to the given parent.
     23   virtual void CreateExampleView(View* parent) = 0;
     24 
     25   const std::string& example_title() const { return example_title_; }
     26   View* example_view() { return container_; }
     27 
     28  protected:
     29   explicit ExampleBase(const char* title);
     30 
     31   View* container() { return container_; }
     32 
     33   // Prints a message in the status area, at the bottom of the window.
     34   void PrintStatus(const char* format, ...);
     35 
     36   // Converts an boolean value to "on" or "off".
     37   const char* BoolToOnOff(bool value) {
     38     return value ? "on" : "off";
     39   }
     40 
     41  private:
     42   // Name of the example - used as title in the combobox list.
     43   std::string example_title_;
     44 
     45   // The view that contains the views example.
     46   View* container_;
     47 
     48   DISALLOW_COPY_AND_ASSIGN(ExampleBase);
     49 };
     50 
     51 }  // namespace examples
     52 }  // namespace views
     53 
     54 #endif  // UI_VIEWS_EXAMPLES_EXAMPLE_BASE_H_
     55