//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A button with no borders that shows a left-pointing or down-pointing
// triangle
//
// $NoKeywords: $
//===========================================================================//

#ifndef EXPANDBUTTON_H
#define EXPANDBUTTON_H

#ifdef _WIN32
#pragma once
#endif

#include <vgui/VGUI.h>
#include <vgui_controls/ToggleButton.h>

namespace vgui {

//-----------------------------------------------------------------------------
// Purpose: A button with no borders that shows a left-pointing or down-pointing
// arrow
//-----------------------------------------------------------------------------
class ExpandButton : public ToggleButton {
    DECLARE_CLASS_SIMPLE(ExpandButton, ToggleButton);

   public:
    ExpandButton(Panel *parent, const char *panelName);
    ~ExpandButton();

    // Expand the button (selected == expanded)
    virtual void SetSelected(bool bExpand);

    // sets whether or not the state of the check can be changed
    // if this is set to false, then no input in the code or by the user can
    // change it's state
    void SetExpandable(bool state);

    virtual void Paint();

   protected:
    virtual void ApplySchemeSettings(IScheme *pScheme);
    MESSAGE_FUNC_PTR(OnExpanded, "Expanded", panel);

    virtual IBorder *GetBorder(bool depressed, bool armed, bool selected,
                               bool keyfocus);

    /* MESSAGES SENT
            "Expanded" - sent when the expand button state is changed
                    "state"	- button state: 1 is expanded, 0 is unexpanded
    */

   private:
    bool m_bExpandable;
    HFont m_hFont;
    Color m_Color;
};

}  // namespace vgui

#endif  // EXPANDBUTTON_H