views: Move implementations of ComboboxExample and SliderExample to source file.

views/examples/combobox_example.cc

+// Copyright (c) 2011 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 "views/examples/combobox_example.h"
+
+#include "base/stringprintf.h"
+#include "base/utf_string_conversions.h"
+#include "ui/base/models/combobox_model.h"
+#include "views/fill_layout.h"
+
+namespace {
+
+// An sample combobox model that generates list of "Item <index>".
+class ComboboxModelExample : public ui::ComboboxModel {
+ public:
+  ComboboxModelExample() {}
+  virtual ~ComboboxModelExample() {}
+
+  // Overridden from ui::ComboboxModel:
+  virtual int GetItemCount() OVERRIDE { return 10; }
+
+  // Overridden from ui::ComboboxModel:
+  virtual string16 GetItemAt(int index) OVERRIDE {
+    return WideToUTF16Hack(base::StringPrintf(L"Item %d", index));
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ComboboxModelExample);
+};
+
+}  // namespace
+
+namespace examples {
+
+ComboboxExample::ComboboxExample(ExamplesMain* main) : ExampleBase(main) {
+}
+
+ComboboxExample::~ComboboxExample() {
+}
+
+std::wstring ComboboxExample::GetExampleTitle() {
+  return L"Combo Box";
+}
+
+void ComboboxExample::CreateExampleView(views::View* container) {
+  combobox_ = new views::Combobox(new ComboboxModelExample());
+  combobox_->set_listener(this);
+  combobox_->SetSelectedItem(3);
+
+  container->SetLayoutManager(new views::FillLayout);
+  container->AddChildView(combobox_);
+}
+
+void ComboboxExample::ItemChanged(views::Combobox* combo_box,
+                                  int prev_index,
+                                  int new_index) {
+  PrintStatus(L"Selected: index=%d, label=%ls",
+      new_index, UTF16ToWideHack(
+          combo_box->model()->GetItemAt(new_index)).c_str());
+}
+
+}  // namespace examples