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/combobox_example.h" 6 7 #include "base/strings/stringprintf.h" 8 #include "base/strings/utf_string_conversions.h" 9 #include "ui/views/controls/combobox/combobox.h" 10 #include "ui/views/layout/fill_layout.h" 11 12 namespace views { 13 namespace examples { 14 ComboboxModelExample()15ComboboxModelExample::ComboboxModelExample() { 16 } 17 ~ComboboxModelExample()18ComboboxModelExample::~ComboboxModelExample() { 19 } 20 GetItemCount() const21int ComboboxModelExample::GetItemCount() const { 22 return 10; 23 } 24 GetItemAt(int index)25base::string16 ComboboxModelExample::GetItemAt(int index) { 26 return base::UTF8ToUTF16(base::StringPrintf("Item %d", index)); 27 } 28 ComboboxExample()29ComboboxExample::ComboboxExample() : ExampleBase("Combo Box"), combobox_(NULL) { 30 } 31 ~ComboboxExample()32ComboboxExample::~ComboboxExample() { 33 // Delete |combobox_| first as it references |combobox_model_|. 34 delete combobox_; 35 combobox_ = NULL; 36 } 37 CreateExampleView(View * container)38void ComboboxExample::CreateExampleView(View* container) { 39 combobox_ = new Combobox(&combobox_model_); 40 combobox_->set_listener(this); 41 combobox_->SetSelectedIndex(3); 42 43 container->SetLayoutManager(new FillLayout); 44 container->AddChildView(combobox_); 45 } 46 OnPerformAction(Combobox * combobox)47void ComboboxExample::OnPerformAction(Combobox* combobox) { 48 DCHECK_EQ(combobox_, combobox); 49 PrintStatus("Selected: %s", base::UTF16ToUTF8(combobox_model_.GetItemAt( 50 combobox->selected_index())).c_str()); 51 } 52 53 } // namespace examples 54 } // namespace views 55