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// Copyright 2013 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 "ui/views/examples/multiline_example.h"
#include "base/utf_string_conversions.h"
#include "ui/base/events/event.h"
#include "ui/gfx/render_text.h"
#include "ui/views/controls/label.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/layout/grid_layout.h"
#include "ui/views/view.h"
namespace views {
namespace examples {
// A simple View that hosts a RenderText object.
class MultilineExample::RenderTextView : public View {
public:
explicit RenderTextView(gfx::RenderText* render_text)
: render_text_(render_text) {
render_text_->SetColor(SK_ColorBLACK);
set_border(Border::CreateSolidBorder(2, SK_ColorGRAY));
}
virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
View::OnPaint(canvas);
render_text_->Draw(canvas);
}
virtual gfx::Size GetPreferredSize() OVERRIDE {
return gfx::Size(0,
render_text_->GetFont().GetHeight() + GetInsets().height());
}
void SetText(const string16& new_contents) {
render_text_->SetText(new_contents);
SchedulePaint();
}
private:
virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE {
gfx::Rect bounds = GetLocalBounds();
bounds.Inset(GetInsets());
render_text_->SetDisplayRect(bounds);
}
scoped_ptr<gfx::RenderText> render_text_;
DISALLOW_COPY_AND_ASSIGN(RenderTextView);
};
MultilineExample::MultilineExample()
: ExampleBase("Multiline RenderText"),
render_text_view_(NULL),
label_(NULL),
textfield_(NULL) {
}
MultilineExample::~MultilineExample() {
}
void MultilineExample::CreateExampleView(View* container) {
const char kTestString[] = "test string asdf 1234 test string asdf 1234 "
"test string asdf 1234 test string asdf 1234";
gfx::RenderText* render_text = gfx::RenderText::CreateInstance();
render_text->SetText(ASCIIToUTF16(kTestString));
render_text->SetHorizontalAlignment(gfx::ALIGN_CENTER);
render_text_view_ = new RenderTextView(render_text);
label_ = new Label();
label_->SetText(ASCIIToUTF16(kTestString));
label_->SetMultiLine(true);
label_->set_border(Border::CreateSolidBorder(2, SK_ColorCYAN));
textfield_ = new Textfield();
textfield_->SetController(this);
textfield_->SetText(ASCIIToUTF16(kTestString));
GridLayout* layout = new GridLayout(container);
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::FIXED, 0, 0);
layout->StartRow(0, 0);
layout->AddView(new Label(ASCIIToUTF16("gfx::RenderText:")));
layout->AddView(render_text_view_);
layout->StartRow(0, 0);
layout->AddView(new Label(ASCIIToUTF16("views::Label:")));
layout->AddView(label_);
layout->StartRow(0, 0);
layout->AddView(new Label(ASCIIToUTF16("Sample Text:")));
layout->AddView(textfield_);
}
void MultilineExample::ContentsChanged(Textfield* sender,
const string16& new_contents) {
render_text_view_->SetText(new_contents);
label_->SetText(new_contents);
}
bool MultilineExample::HandleKeyEvent(Textfield* sender,
const ui::KeyEvent& key_event) {
return false;
}
} // namespace examples
} // namespace views
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