ui/views/examples/button_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/button_example.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "ui/base/resource/resource_bundle.h"
   9 #include "ui/gfx/image/image.h"
  10 #include "ui/resources/grit/ui_resources.h"
  11 #include "ui/views/background.h"
  12 #include "ui/views/controls/button/blue_button.h"
  13 #include "ui/views/controls/button/image_button.h"
  14 #include "ui/views/controls/button/label_button.h"
  15 #include "ui/views/layout/box_layout.h"
  16 #include "ui/views/view.h"
  17
  18 using base::ASCIIToUTF16;
  19
  20 namespace {
  21 const char kLabelButton[] = "Label Button";
  22 const char kMultiLineText[] = "Multi-Line\nButton Text Is Here To Stay!\n123";
  23 const char kLongText[] = "Start of Really Really Really Really Really Really "
  24                          "Really Really Really Really Really Really Really "
  25                          "Really Really Really Really Really Long Button Text";
  26 }  // namespace
  27
  28 namespace views {
  29 namespace examples {
  30
  31 ButtonExample::ButtonExample()
  32     : ExampleBase("Button"),
  33       label_button_(NULL),
  34       image_button_(NULL),
  35       icon_(NULL),
  36       count_(0) {
  37   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  38   icon_ = rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia();
  39 }
  40
  41 ButtonExample::~ButtonExample() {
  42 }
  43
  44 void ButtonExample::CreateExampleView(View* container) {
  45   container->set_background(Background::CreateSolidBackground(SK_ColorWHITE));
  46   container->SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
  47
  48   label_button_ = new LabelButton(this, ASCIIToUTF16(kLabelButton));
  49   label_button_->SetFocusable(true);
  50   container->AddChildView(label_button_);
  51
  52   LabelButton* disabled_button =
  53       new LabelButton(this, ASCIIToUTF16("Disabled Button"));
  54   disabled_button->SetStyle(Button::STYLE_BUTTON);
  55   disabled_button->SetState(Button::STATE_DISABLED);
  56   container->AddChildView(disabled_button);
  57
  58   container->AddChildView(new BlueButton(this, ASCIIToUTF16("Blue Button")));
  59
  60   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  61   image_button_ = new ImageButton(this);
  62   image_button_->SetFocusable(true);
  63   image_button_->SetImage(ImageButton::STATE_NORMAL,
  64                           rb.GetImageNamed(IDR_CLOSE).ToImageSkia());
  65   image_button_->SetImage(ImageButton::STATE_HOVERED,
  66                           rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia());
  67   image_button_->SetImage(ImageButton::STATE_PRESSED,
  68                           rb.GetImageNamed(IDR_CLOSE_P).ToImageSkia());
  69   container->AddChildView(image_button_);
  70 }
  71
  72 void ButtonExample::LabelButtonPressed(const ui::Event& event) {
  73   PrintStatus("Label Button Pressed! count: %d", ++count_);
  74   if (event.IsControlDown()) {
  75     if (event.IsShiftDown()) {
  76       if (event.IsAltDown()) {
  77         label_button_->SetTextMultiLine(!label_button_->GetTextMultiLine());
  78         label_button_->SetText(ASCIIToUTF16(
  79             label_button_->GetTextMultiLine() ? kMultiLineText : kLabelButton));
  80       } else {
  81         label_button_->SetText(ASCIIToUTF16(
  82             label_button_->GetText().empty() ? kLongText :
  83                 label_button_->GetText().length() > 50 ? kLabelButton : ""));
  84       }
  85     } else if (event.IsAltDown()) {
  86       label_button_->SetImage(Button::STATE_NORMAL,
  87           label_button_->GetImage(Button::STATE_NORMAL).isNull() ?
  88           *icon_ : gfx::ImageSkia());
  89     } else {
  90       label_button_->SetHorizontalAlignment(
  91           static_cast<gfx::HorizontalAlignment>(
  92               (label_button_->GetHorizontalAlignment() + 1) % 3));
  93     }
  94   } else if (event.IsShiftDown()) {
  95     if (event.IsAltDown()) {
  96       label_button_->SetFocusable(!label_button_->IsFocusable());
  97     } else {
  98       label_button_->SetStyle(static_cast<Button::ButtonStyle>(
  99           (label_button_->style() + 1) % Button::STYLE_COUNT));
 100     }
 101   } else if (event.IsAltDown()) {
 102     label_button_->SetIsDefault(!label_button_->is_default());
 103   } else {
 104     label_button_->SetMinSize(gfx::Size());
 105   }
 106   example_view()->GetLayoutManager()->Layout(example_view());
 107 }
 108
 109 void ButtonExample::ButtonPressed(Button* sender, const ui::Event& event) {
 110   if (sender == label_button_)
 111     LabelButtonPressed(event);
 112   else
 113     PrintStatus("Image Button Pressed! count: %d", ++count_);
 114 }
 115
 116 }  // namespace examples
 117 }  // namespace views