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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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