ui/views/examples/text_example.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_VIEWS_EXAMPLES_TEXT_EXAMPLE_H_
#define UI_VIEWS_EXAMPLES_TEXT_EXAMPLE_H_

#include "base/containers/span.h"
#include "base/memory/raw_ptr.h"
#include "ui/views/examples/example_base.h"

namespace views {
class Checkbox;
class Combobox;
class View;

namespace examples {

class VIEWS_EXAMPLES_EXPORT TextExample : public ExampleBase {
 public:
  TextExample();

  TextExample(const TextExample&) = delete;
  TextExample& operator=(const TextExample&) = delete;

  ~TextExample() override;

  // ExampleBase:
  void CreateExampleView(View* container) override;

 private:
  class TextExampleView;

  // Creates and adds a check box to the layout.
  Checkbox* AddCheckbox(View* parent, const char* name);

  // Creates and adds a combobox to the layout. Sets |this|' instance of
  // |combobox_callback| as the callback for the created combobox.
  Combobox* AddCombobox(View* parent,
                        std::u16string name,
                        base::span<const char* const> items,
                        void (TextExample::*combobox_callback)());

  void AlignComboboxChanged();
  void TextComboboxChanged();
  void ElideComboboxChanged();
  void PrefixComboboxChanged();
  void WeightComboboxChanged();

  void UpdateStyle();

  // The content of the scroll view.
  raw_ptr<TextExampleView> text_view_;

  // Combo box for horizontal text alignment.
  raw_ptr<Combobox> h_align_cb_;

  // Combo box for text eliding style.
  raw_ptr<Combobox> eliding_cb_;

  // Combo box for ampersand prefix show / hide behavior.
  raw_ptr<Combobox> prefix_cb_;

  // Combo box to choose one of the sample texts.
  raw_ptr<Combobox> text_cb_;

  // Combo box to choose a font weight.
  raw_ptr<Combobox> weight_cb_;

  // Check box to enable/disable multiline text drawing.
  raw_ptr<Checkbox> multiline_checkbox_;

  // Check box to enable/disable character break behavior.
  raw_ptr<Checkbox> break_checkbox_;

  // Check box to enable/disable italic style.
  raw_ptr<Checkbox> italic_checkbox_;

  // Check box to enable/disable underline style.
  raw_ptr<Checkbox> underline_checkbox_;

  // Check box to enable/disable underline style.
  raw_ptr<Checkbox> strike_checkbox_;
};

}  // namespace examples
}  // namespace views

#endif  // UI_VIEWS_EXAMPLES_TEXT_EXAMPLE_H_