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/label_example.h"
6
7 #include "base/strings/utf_string_conversions.h"
8 #include "ui/views/border.h"
9 #include "ui/views/controls/label.h"
10 #include "ui/views/layout/box_layout.h"
11 #include "ui/views/view.h"
12
13 using base::ASCIIToUTF16;
14 using base::WideToUTF16;
15
16 namespace views {
17 namespace examples {
18
19 namespace {
20
21 // A Label with a constrained preferred size to demonstrate eliding or wrapping.
22 class PreferredSizeLabel : public Label {
23 public:
PreferredSizeLabel()24 PreferredSizeLabel() : Label() {
25 SetBorder(Border::CreateSolidBorder(2, SK_ColorCYAN));
26 }
~PreferredSizeLabel()27 virtual ~PreferredSizeLabel() {}
28
29 // Label:
GetPreferredSize() const30 virtual gfx::Size GetPreferredSize() const OVERRIDE {
31 return gfx::Size(100, 40);
32 }
33
34 private:
35 DISALLOW_COPY_AND_ASSIGN(PreferredSizeLabel);
36 };
37
38 } // namespace
39
LabelExample()40 LabelExample::LabelExample() : ExampleBase("Label") {}
41
~LabelExample()42 LabelExample::~LabelExample() {}
43
CreateExampleView(View * container)44 void LabelExample::CreateExampleView(View* container) {
45 // A very simple label example, followed by additional helpful examples.
46 container->SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 0, 0, 10));
47 Label* label = new Label(ASCIIToUTF16("Hello world!"));
48 container->AddChildView(label);
49
50 const wchar_t hello_world_hebrew[] =
51 L"\x5e9\x5dc\x5d5\x5dd \x5d4\x5e2\x5d5\x5dc\x5dd!";
52 label = new Label(WideToUTF16(hello_world_hebrew));
53 label->SetHorizontalAlignment(gfx::ALIGN_RIGHT);
54 container->AddChildView(label);
55
56 label = new Label(WideToUTF16(L"A UTF16 surrogate pair: \x5d0\x5b0"));
57 label->SetHorizontalAlignment(gfx::ALIGN_RIGHT);
58 container->AddChildView(label);
59
60 label = new Label(ASCIIToUTF16("A left-aligned blue label."));
61 label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
62 label->SetEnabledColor(SK_ColorBLUE);
63 container->AddChildView(label);
64
65 label = new Label(ASCIIToUTF16("A Courier-18 label with shadows."));
66 label->SetFontList(gfx::FontList("Courier, 18px"));
67 gfx::ShadowValues shadows(1, gfx::ShadowValue(gfx::Point(), 1, SK_ColorRED));
68 gfx::ShadowValue shadow(gfx::Point(2, 2), 0, SK_ColorGRAY);
69 shadows.push_back(shadow);
70 label->set_shadows(shadows);
71 container->AddChildView(label);
72
73 label = new PreferredSizeLabel();
74 label->SetText(ASCIIToUTF16("A long label will elide toward its logical end "
75 "if the text's width exceeds the label's available width."));
76 container->AddChildView(label);
77
78 label = new PreferredSizeLabel();
79 label->SetElideBehavior(gfx::FADE_TAIL);
80 label->SetText(ASCIIToUTF16("Some long labels will fade, rather than elide, "
81 "if the text's width exceeds the label's available width."));
82 container->AddChildView(label);
83
84 label = new PreferredSizeLabel();
85 label->SetText(ASCIIToUTF16("A multi-line label will wrap onto subsequent "
86 "lines if the text's width exceeds the label's available width."));
87 label->SetMultiLine(true);
88 container->AddChildView(label);
89
90 label = new Label(WideToUTF16(L"Password!"));
91 label->SetObscured(true);
92 container->AddChildView(label);
93 }
94
95 } // namespace examples
96 } // namespace views
97