ui/views/examples/slider_example.cc

   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 #include "ui/views/examples/slider_example.h"
   6
   7 #include "base/strings/stringprintf.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "ui/views/controls/label.h"
  10 #include "ui/views/layout/box_layout.h"
  11 #include "ui/views/view.h"
  12
  13 namespace views {
  14 namespace examples {
  15
  16 SliderExample::SliderExample()
  17     : ExampleBase("Slider"),
  18       slider_(NULL),
  19       label_(NULL) {
  20 }
  21
  22 SliderExample::~SliderExample() {
  23 }
  24
  25 void SliderExample::CreateExampleView(View* container) {
  26   label_ = new Label();
  27   slider_ = new Slider(this, Slider::HORIZONTAL);
  28
  29   slider_->SetValue(0.5);
  30
  31   container->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 3, 3, 3));
  32   container->AddChildView(slider_);
  33   container->AddChildView(label_);
  34 }
  35
  36 void SliderExample::SliderValueChanged(Slider* sender,
  37                                        float value,
  38                                        float old_value,
  39                                        SliderChangeReason reason) {
  40   label_->SetText(base::ASCIIToUTF16(base::StringPrintf("%.3lf", value)));
  41 }
  42
  43 }  // namespace examples
  44 }  // namespace views
  45