#include "ui/views/examples/label_example.h"
#include "base/strings/utf_string_conversions.h"
+#include "ui/views/background.h"
#include "ui/views/border.h"
+#include "ui/views/controls/button/checkbox.h"
+#include "ui/views/controls/combobox/combobox.h"
#include "ui/views/controls/label.h"
+#include "ui/views/controls/textfield/textfield.h"
+#include "ui/views/examples/example_combobox_model.h"
#include "ui/views/layout/box_layout.h"
+#include "ui/views/layout/grid_layout.h"
#include "ui/views/view.h"
using base::ASCIIToUTF16;
namespace {
-// A Label with a constrained preferred size to demonstrate eliding or wrapping.
+const char* kElideBehaviors[] = { "No Elide", "Truncate", "Elide Head",
+ "Elide Middle", "Elide Tail", "Elide Email", "Fade Tail" };
+const char* kAlignments[] = { "Left", "Center", "Right", "Head" };
+
+// A Label with a clamped preferred width to demonstrate eliding or wrapping.
class PreferredSizeLabel : public Label {
public:
PreferredSizeLabel() : Label() {
- SetBorder(Border::CreateSolidBorder(2, SK_ColorCYAN));
+ SetBorder(Border::CreateSolidBorder(1, SK_ColorGRAY));
}
virtual ~PreferredSizeLabel() {}
// Label:
virtual gfx::Size GetPreferredSize() const OVERRIDE {
- return gfx::Size(100, 40);
+ return gfx::Size(50, Label::GetPreferredSize().height());
}
private:
} // namespace
-LabelExample::LabelExample() : ExampleBase("Label") {}
+LabelExample::LabelExample()
+ : ExampleBase("Label"),
+ textfield_(NULL),
+ alignment_(NULL),
+ elide_behavior_(NULL),
+ multiline_(NULL),
+ shadows_(NULL),
+ custom_label_(NULL) {
+}
-LabelExample::~LabelExample() {}
+LabelExample::~LabelExample() {
+ // Remove the views first as some reference combobox models.
+ container()->RemoveAllChildViews(true);
+}
void LabelExample::CreateExampleView(View* container) {
// A very simple label example, followed by additional helpful examples.
label->SetEnabledColor(SK_ColorBLUE);
container->AddChildView(label);
+ label = new Label(WideToUTF16(L"Password!"));
+ label->SetObscured(true);
+ container->AddChildView(label);
+
label = new Label(ASCIIToUTF16("A Courier-18 label with shadows."));
label->SetFontList(gfx::FontList("Courier, 18px"));
gfx::ShadowValues shadows(1, gfx::ShadowValue(gfx::Point(), 1, SK_ColorRED));
gfx::ShadowValue shadow(gfx::Point(2, 2), 0, SK_ColorGRAY);
shadows.push_back(shadow);
- label->set_shadows(shadows);
+ label->SetShadows(shadows);
container->AddChildView(label);
label = new PreferredSizeLabel();
container->AddChildView(label);
label = new PreferredSizeLabel();
- label->SetElideBehavior(gfx::FADE_TAIL);
- label->SetText(ASCIIToUTF16("Some long labels will fade, rather than elide, "
- "if the text's width exceeds the label's available width."));
- container->AddChildView(label);
-
- label = new PreferredSizeLabel();
label->SetText(ASCIIToUTF16("A multi-line label will wrap onto subsequent "
- "lines if the text's width exceeds the label's available width."));
+ "lines if the text's width exceeds the label's available width, which is "
+ "helpful for extemely long text used to demonstrate line wrapping."));
label->SetMultiLine(true);
container->AddChildView(label);
- label = new Label(WideToUTF16(L"Password!"));
- label->SetObscured(true);
- container->AddChildView(label);
+ AddCustomLabel(container);
+}
+
+void LabelExample::ButtonPressed(Button* button, const ui::Event& event) {
+ if (button == multiline_) {
+ custom_label_->SetMultiLine(multiline_->checked());
+ } else if (button == shadows_) {
+ gfx::ShadowValues shadows;
+ if (shadows_->checked()) {
+ shadows.push_back(gfx::ShadowValue(gfx::Point(), 1, SK_ColorRED));
+ shadows.push_back(gfx::ShadowValue(gfx::Point(2, 2), 0, SK_ColorGRAY));
+ }
+ custom_label_->SetShadows(shadows);
+ }
+ custom_label_->parent()->parent()->Layout();
+ custom_label_->SchedulePaint();
+}
+
+void LabelExample::OnPerformAction(Combobox* combobox) {
+ if (combobox == alignment_) {
+ custom_label_->SetHorizontalAlignment(
+ static_cast<gfx::HorizontalAlignment>(combobox->selected_index()));
+ } else if (combobox == elide_behavior_) {
+ custom_label_->SetElideBehavior(
+ static_cast<gfx::ElideBehavior>(combobox->selected_index()));
+ }
+}
+
+void LabelExample::ContentsChanged(Textfield* sender,
+ const base::string16& new_contents) {
+ custom_label_->SetText(new_contents);
+ custom_label_->parent()->parent()->Layout();
+}
+
+void LabelExample::AddCustomLabel(View* container) {
+ View* control_container = new View();
+ control_container->SetBorder(Border::CreateSolidBorder(2, SK_ColorGRAY));
+ control_container->set_background(
+ Background::CreateSolidBackground(SK_ColorLTGRAY));
+ GridLayout* layout = GridLayout::CreatePanel(control_container);
+ control_container->SetLayoutManager(layout);
+
+ ColumnSet* column_set = layout->AddColumnSet(0);
+ column_set->AddColumn(GridLayout::LEADING, GridLayout::FILL,
+ 0.0f, GridLayout::USE_PREF, 0, 0);
+ column_set->AddColumn(GridLayout::FILL, GridLayout::FILL,
+ 1.0f, GridLayout::USE_PREF, 0, 0);
+
+ layout->StartRow(0, 0);
+ layout->AddView(new Label(ASCIIToUTF16("Content: ")));
+ textfield_ = new Textfield();
+ textfield_->SetText(ASCIIToUTF16("Use the provided controls to configure the "
+ "content and presentation of this custom label."));
+ textfield_->SetSelectionRange(gfx::Range());
+ textfield_->set_controller(this);
+ layout->AddView(textfield_);
+
+ alignment_ = AddCombobox(layout, "Alignment: ", kAlignments,
+ arraysize(kAlignments));
+ elide_behavior_ = AddCombobox(layout, "Elide Behavior: ", kElideBehaviors,
+ arraysize(kElideBehaviors));
+
+ column_set = layout->AddColumnSet(1);
+ column_set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
+ 0, GridLayout::USE_PREF, 0, 0);
+ column_set->AddColumn(GridLayout::LEADING, GridLayout::LEADING,
+ 0, GridLayout::USE_PREF, 0, 0);
+ layout->StartRow(0, 1);
+ multiline_ = new Checkbox(base::ASCIIToUTF16("Multiline"));
+ multiline_->set_listener(this);
+ layout->AddView(multiline_);
+ shadows_ = new Checkbox(base::ASCIIToUTF16("Shadows"));
+ shadows_->set_listener(this);
+ layout->AddView(shadows_);
+ layout->AddPaddingRow(0, 8);
+
+ column_set = layout->AddColumnSet(2);
+ column_set->AddColumn(GridLayout::FILL, GridLayout::FILL,
+ 1, GridLayout::USE_PREF, 0, 0);
+ layout->StartRow(0, 2);
+ custom_label_ = new PreferredSizeLabel();
+ custom_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+ custom_label_->SetElideBehavior(gfx::NO_ELIDE);
+ custom_label_->SetText(textfield_->text());
+ layout->AddView(custom_label_);
+
+ container->AddChildView(control_container);
+}
+
+Combobox* LabelExample::AddCombobox(GridLayout* layout,
+ const char* name,
+ const char** strings,
+ int count) {
+ layout->StartRow(0, 0);
+ layout->AddView(new Label(base::ASCIIToUTF16(name)));
+ ExampleComboboxModel* model = new ExampleComboboxModel(strings, count);
+ example_combobox_models_.push_back(model);
+ Combobox* combobox = new Combobox(model);
+ combobox->SetSelectedIndex(0);
+ combobox->set_listener(this);
+ layout->AddView(combobox);
+ return combobox;
}
} // namespace examples
projects / platform / framework / web / crosswalk.git / blobdiff