It is time.

ui/views/examples/radio_button_example.cc

-// Copyright (c) 2011 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.
-
-#include "ui/views/examples/radio_button_example.h"
-
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "ui/views/controls/button/label_button.h"
-#include "ui/views/controls/button/radio_button.h"
-#include "ui/views/layout/grid_layout.h"
-#include "ui/views/view.h"
-
-namespace views {
-namespace examples {
-
-RadioButtonExample::RadioButtonExample()
-    : ExampleBase("Radio Button"),
-      count_(0) {
-}
-
-RadioButtonExample::~RadioButtonExample() {
-}
-
-void RadioButtonExample::CreateExampleView(View* container) {
-  select_ = new LabelButton(this, base::ASCIIToUTF16("Select"));
-  status_ = new LabelButton(this, base::ASCIIToUTF16("Show Status"));
-
-  int group = 1;
-  for (size_t i = 0; i < arraysize(radio_buttons_); ++i) {
-    radio_buttons_[i] = new RadioButton(
-        base::UTF8ToUTF16(base::StringPrintf(
-            "Radio %d in group %d", static_cast<int>(i) + 1, group)),
-        group);
-    radio_buttons_[i]->set_listener(this);
-  }
-
-  GridLayout* layout = new GridLayout(container);
-  container->SetLayoutManager(layout);
-
-  ColumnSet* column_set = layout->AddColumnSet(0);
-  column_set->AddColumn(GridLayout::FILL, GridLayout::FILL,
-                        1.0f, GridLayout::USE_PREF, 0, 0);
-  for (size_t i = 0; i < arraysize(radio_buttons_); ++i) {
-    layout->StartRow(0, 0);
-    layout->AddView(radio_buttons_[i]);
-  }
-  layout->StartRow(0, 0);
-  layout->AddView(select_);
-  layout->StartRow(0, 0);
-  layout->AddView(status_);
-}
-
-void RadioButtonExample::ButtonPressed(Button* sender, const ui::Event& event) {
-  if (sender == select_) {
-    radio_buttons_[2]->SetChecked(true);
-  } else if (sender == status_) {
-    // Show the state of radio buttons.
-    PrintStatus("Group: 1:%s, 2:%s, 3:%s",
-                BoolToOnOff(radio_buttons_[0]->checked()),
-                BoolToOnOff(radio_buttons_[1]->checked()),
-                BoolToOnOff(radio_buttons_[2]->checked()));
-  } else {
-    PrintStatus("Pressed! count:%d", ++count_);
-  }
-}
-
-}  // namespace examples
-}  // namespace views