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| 1 // Copyright (c) 2011 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 "views/examples/combobox_example.h" | |
| 6 | |
| 7 #include "base/stringprintf.h" | |
| 8 #include "base/utf_string_conversions.h" | |
| 9 #include "ui/base/models/combobox_model.h" | |
| 10 | |
| 11 namespace { | |
| 12 | |
| 13 // An sample combobox model that generates list of "Item <index>". | |
| 14 class ComboboxModelExample : public ui::ComboboxModel { | |
| 15 public: | |
| 16 ComboboxModelExample() {} | |
| 17 virtual ~ComboboxModelExample() {} | |
| 18 | |
| 19 // Overridden from ui::ComboboxModel: | |
| 20 virtual int GetItemCount() OVERRIDE { return 10; } | |
| 21 | |
| 22 // Overridden from ui::ComboboxModel: | |
| 23 virtual string16 GetItemAt(int index) OVERRIDE { | |
| 24 return UTF8ToUTF16(base::StringPrintf("Item %d", index)); | |
| 25 } | |
| 26 | |
| 27 private: | |
| 28 DISALLOW_COPY_AND_ASSIGN(ComboboxModelExample); | |
| 29 }; | |
| 30 | |
| 31 } // namespace | |
| 32 | |
| 33 namespace examples { | |
| 34 | |
| 35 ComboboxExample::ComboboxExample(ExamplesMain* main) | |
| 36 : ExampleBase(main, "Combo Box") { | |
| 37 } | |
| 38 | |
| 39 ComboboxExample::~ComboboxExample() { | |
| 40 } | |
| 41 | |
| 42 void ComboboxExample::CreateExampleView(views::View* container) { | |
| 43 combobox_ = new views::Combobox(new ComboboxModelExample()); | |
| 44 combobox_->set_listener(this); | |
| 45 combobox_->SetSelectedItem(3); | |
| 46 | |
| 47 container->SetLayoutManager(new views::FillLayout); | |
| 48 container->AddChildView(combobox_); | |
| 49 } | |
| 50 | |
| 51 void ComboboxExample::ItemChanged(views::Combobox* combo_box, | |
| 52 int prev_index, | |
| 53 int new_index) { | |
| 54 PrintStatus("Selected: index=%d, label=%s", | |
| 55 new_index, UTF16ToUTF8(combo_box->model()->GetItemAt(new_index)).c_str()); | |
| 56 } | |
| 57 | |
| 58 } // namespace examples | |
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