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ui/views/examples/label_example.cc

Index: ui/views/examples/label_example.cc
diff --git a/ui/views/examples/label_example.cc b/ui/views/examples/label_example.cc
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--- a/ui/views/examples/label_example.cc
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-// Copyright (c) 2012 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/label_example.h"
-
-#include "base/strings/utf_string_conversions.h"
-#include "ui/views/background.h"
-#include "ui/views/border.h"
-#include "ui/views/controls/button/checkbox.h"
-#include "ui/views/controls/combobox/combobox.h"
-#include "ui/views/controls/label.h"
-#include "ui/views/controls/textfield/textfield.h"
-#include "ui/views/examples/example_combobox_model.h"
-#include "ui/views/layout/box_layout.h"
-#include "ui/views/layout/grid_layout.h"
-#include "ui/views/view.h"
-
-using base::ASCIIToUTF16;
-using base::WideToUTF16;
-
-namespace views {
-namespace examples {
-
-namespace {
-
-const char* kElideBehaviors[] = { "No Elide", "Truncate", "Elide Head",
-    "Elide Middle", "Elide Tail", "Elide Email", "Fade Tail" };
-const char* kAlignments[] = { "Left", "Center", "Right", "Head" };
-
-// A Label with a clamped preferred width to demonstrate eliding or wrapping.
-class PreferredSizeLabel : public Label {
- public:
-  PreferredSizeLabel() : Label() {
-    SetBorder(Border::CreateSolidBorder(1, SK_ColorGRAY));
-  }
-  virtual ~PreferredSizeLabel() {}
-
-  // Label:
-  virtual gfx::Size GetPreferredSize() const override {
-    return gfx::Size(50, Label::GetPreferredSize().height());
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(PreferredSizeLabel);
-};
-
-}  // namespace
-
-LabelExample::LabelExample()
-    : ExampleBase("Label"),
-      textfield_(NULL),
-      alignment_(NULL),
-      elide_behavior_(NULL),
-      multiline_(NULL),
-      shadows_(NULL),
-      custom_label_(NULL) {
-}
-
-LabelExample::~LabelExample() {
-  // Remove the views first as some reference combobox models.
-  container()->RemoveAllChildViews(true);
-}
-
-void LabelExample::CreateExampleView(View* container) {
-  // A very simple label example, followed by additional helpful examples.
-  container->SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 0, 0, 10));
-  Label* label = new Label(ASCIIToUTF16("Hello world!"));
-  container->AddChildView(label);
-
-  const wchar_t hello_world_hebrew[] =
-      L"\x5e9\x5dc\x5d5\x5dd \x5d4\x5e2\x5d5\x5dc\x5dd!";
-  label = new Label(WideToUTF16(hello_world_hebrew));
-  label->SetHorizontalAlignment(gfx::ALIGN_RIGHT);
-  container->AddChildView(label);
-
-  label = new Label(WideToUTF16(L"A UTF16 surrogate pair: \x5d0\x5b0"));
-  label->SetHorizontalAlignment(gfx::ALIGN_RIGHT);
-  container->AddChildView(label);
-
-  label = new Label(ASCIIToUTF16("A left-aligned blue label."));
-  label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-  label->SetEnabledColor(SK_ColorBLUE);
-  container->AddChildView(label);
-
-  label = new Label(WideToUTF16(L"Password!"));
-  label->SetObscured(true);
-  container->AddChildView(label);
-
-  label = new Label(ASCIIToUTF16("A Courier-18 label with shadows."));
-  label->SetFontList(gfx::FontList("Courier, 18px"));
-  gfx::ShadowValues shadows(1, gfx::ShadowValue(gfx::Point(), 1, SK_ColorRED));
-  gfx::ShadowValue shadow(gfx::Point(2, 2), 0, SK_ColorGRAY);
-  shadows.push_back(shadow);
-  label->SetShadows(shadows);
-  container->AddChildView(label);
-
-  label = new PreferredSizeLabel();
-  label->SetText(ASCIIToUTF16("A long label will elide toward its logical end "
-      "if the text's width exceeds the label's available width."));
-  container->AddChildView(label);
-
-  label = new PreferredSizeLabel();
-  label->SetText(ASCIIToUTF16("A multi-line label will wrap onto subsequent "
-    "lines if the text's width exceeds the label's available width, which is "
-    "helpful for extemely long text used to demonstrate line wrapping."));
-  label->SetMultiLine(true);
-  container->AddChildView(label);
-
-  AddCustomLabel(container);
-}
-
-void LabelExample::ButtonPressed(Button* button, const ui::Event& event) {
-  if (button == multiline_) {
-    custom_label_->SetMultiLine(multiline_->checked());
-  } else if (button == shadows_) {
-    gfx::ShadowValues shadows;
-    if (shadows_->checked()) {
-      shadows.push_back(gfx::ShadowValue(gfx::Point(), 1, SK_ColorRED));
-      shadows.push_back(gfx::ShadowValue(gfx::Point(2, 2), 0, SK_ColorGRAY));
-    }
-    custom_label_->SetShadows(shadows);
-  }
-  custom_label_->parent()->parent()->Layout();
-  custom_label_->SchedulePaint();
-}
-
-void LabelExample::OnPerformAction(Combobox* combobox) {
-  if (combobox == alignment_) {
-    custom_label_->SetHorizontalAlignment(
-        static_cast<gfx::HorizontalAlignment>(combobox->selected_index()));
-  } else if (combobox == elide_behavior_) {
-    custom_label_->SetElideBehavior(
-        static_cast<gfx::ElideBehavior>(combobox->selected_index()));
-  }
-}
-
-void LabelExample::ContentsChanged(Textfield* sender,
-                                   const base::string16& new_contents) {
-  custom_label_->SetText(new_contents);
-  custom_label_->parent()->parent()->Layout();
-}
-
-void LabelExample::AddCustomLabel(View* container) {
-  View* control_container = new View();
-  control_container->SetBorder(Border::CreateSolidBorder(2, SK_ColorGRAY));
-  control_container->set_background(
-      Background::CreateSolidBackground(SK_ColorLTGRAY));
-  GridLayout* layout = GridLayout::CreatePanel(control_container);
-  control_container->SetLayoutManager(layout);
-
-  ColumnSet* column_set = layout->AddColumnSet(0);
-  column_set->AddColumn(GridLayout::LEADING, GridLayout::FILL,
-                        0.0f, GridLayout::USE_PREF, 0, 0);
-  column_set->AddColumn(GridLayout::FILL, GridLayout::FILL,
-                        1.0f, GridLayout::USE_PREF, 0, 0);
-
-  layout->StartRow(0, 0);
-  layout->AddView(new Label(ASCIIToUTF16("Content: ")));
-  textfield_ = new Textfield();
-  textfield_->SetText(ASCIIToUTF16("Use the provided controls to configure the "
-      "content and presentation of this custom label."));
-  textfield_->SetSelectionRange(gfx::Range());
-  textfield_->set_controller(this);
-  layout->AddView(textfield_);
-
-  alignment_ = AddCombobox(layout, "Alignment: ", kAlignments,
-                           arraysize(kAlignments));
-  elide_behavior_ = AddCombobox(layout, "Elide Behavior: ", kElideBehaviors,
-                                arraysize(kElideBehaviors));
-
-  column_set = layout->AddColumnSet(1);
-  column_set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
-                        0, GridLayout::USE_PREF, 0, 0);
-  column_set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
-                        0, GridLayout::USE_PREF, 0, 0);
-  layout->StartRow(0, 1);
-  multiline_ = new Checkbox(base::ASCIIToUTF16("Multiline"));
-  multiline_->set_listener(this);
-  layout->AddView(multiline_);
-  shadows_ = new Checkbox(base::ASCIIToUTF16("Shadows"));
-  shadows_->set_listener(this);
-  layout->AddView(shadows_);
-  layout->AddPaddingRow(0, 8);
-
-  column_set = layout->AddColumnSet(2);
-  column_set->AddColumn(GridLayout::FILL, GridLayout::FILL,
-                        1, GridLayout::USE_PREF, 0, 0);
-  layout->StartRow(0, 2);
-  custom_label_ = new PreferredSizeLabel();
-  custom_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-  custom_label_->SetElideBehavior(gfx::NO_ELIDE);
-  custom_label_->SetText(textfield_->text());
-  layout->AddView(custom_label_);
-
-  container->AddChildView(control_container);
-}
-
-Combobox* LabelExample::AddCombobox(GridLayout* layout,
-                                    const char* name,
-                                    const char** strings,
-                                    int count) {
-  layout->StartRow(0, 0);
-  layout->AddView(new Label(base::ASCIIToUTF16(name)));
-  ExampleComboboxModel* model = new ExampleComboboxModel(strings, count);
-  example_combobox_models_.push_back(model);
-  Combobox* combobox = new Combobox(model);
-  combobox->SetSelectedIndex(0);
-  combobox->set_listener(this);
-  layout->AddView(combobox);
-  return combobox;
-}
-
-}  // namespace examples
-}  // namespace views