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// Copyright (c) 2010 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.
#ifndef VIEWS_CONTROLS_BUTTON_CHECKBOX_H_
#define VIEWS_CONTROLS_BUTTON_CHECKBOX_H_
#pragma once
#include <string>
#include "views/controls/button/native_button.h"
namespace views {
class Label;
// A NativeButton subclass representing a checkbox.
class Checkbox : public NativeButton {
public:
// The button's class name.
static const char kViewClassName[];
Checkbox();
explicit Checkbox(const std::wstring& label);
virtual ~Checkbox();
// Sets a listener for this checkbox. Checkboxes aren't required to have them
// since their state can be read independently of them being toggled.
void set_listener(ButtonListener* listener) { listener_ = listener; }
// Sets whether or not the checkbox label should wrap multiple lines of text.
// If true, long lines are wrapped, and this is reflected in the preferred
// size returned by GetPreferredSize. If false, text that will not fit within
// the available bounds for the label will be cropped.
void SetMultiLine(bool multiline);
// Sets/Gets whether or not the checkbox is checked.
virtual void SetChecked(bool checked);
bool checked() const { return checked_; }
// Returns the indentation of the text from the left edge of the view.
static int GetTextIndent();
// Overridden from View:
virtual gfx::Size GetPreferredSize() OVERRIDE;
virtual int GetHeightForWidth(int w) OVERRIDE;
virtual void Layout() OVERRIDE;
virtual void SetEnabled(bool enabled) OVERRIDE;
virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
virtual void OnMouseEntered(const MouseEvent& e) OVERRIDE;
virtual void OnMouseMoved(const MouseEvent& e) OVERRIDE;
virtual void OnMouseExited(const MouseEvent& e) OVERRIDE;
virtual bool OnMousePressed(const MouseEvent& e) OVERRIDE;
virtual void OnMouseReleased(const MouseEvent& e, bool canceled) OVERRIDE;
virtual bool OnMouseDragged(const MouseEvent& e) OVERRIDE;
virtual void OnFocus() OVERRIDE;
virtual void OnBlur() OVERRIDE;
// Accessibility accessors, overridden from View.
virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
// Overridden from NativeButton:
virtual void SetLabel(const std::wstring& label) OVERRIDE;
protected:
virtual std::string GetClassName() const OVERRIDE;
// Overridden from NativeButton:
virtual NativeButtonWrapper* CreateWrapper() OVERRIDE;
virtual void InitBorder() OVERRIDE;
// Returns true if the event (in Checkbox coordinates) is within the bounds of
// the label.
bool HitTestLabel(const MouseEvent& e);
private:
// Called from the constructor to create and configure the checkbox label.
void Init(const std::wstring& label_text);
// The checkbox's label. We may not be able to use the OS version on some
// platforms because of transparency and sizing issues.
Label* label_;
// True if the checkbox is checked.
bool checked_;
DISALLOW_COPY_AND_ASSIGN(Checkbox);
};
} // namespace views
#endif // VIEWS_CONTROLS_BUTTON_CHECKBOX_H_
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