CButton.h

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/* Copyright (C) 2021 Wildfire Games.
 * This file is part of 0 A.D.
 *
 * 0 A.D. is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * 0 A.D. is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef INCLUDED_CBUTTON
#define INCLUDED_CBUTTON

#include "gui/CGUISprite.h"
#include "gui/ObjectBases/IGUIButtonBehavior.h"
#include "gui/ObjectBases/IGUIObject.h"
#include "gui/ObjectBases/IGUITextOwner.h"
#include "gui/SettingTypes/CGUIString.h"
#include "gui/SettingTypes/MouseEventMask.h"
#include "maths/Vector2D.h"

class CButton : public IGUIObject, public IGUITextOwner, public IGUIButtonBehavior
{
    GUI_OBJECT(CButton)
public:
    CButton(CGUI& pGUI);
    virtual ~CButton();

    /**
     * @see IGUIObject#ResetStates()
     */
    virtual void ResetStates();

    /**
     * @see IGUIObject#UpdateCachedSize()
     */
    virtual void UpdateCachedSize();

    /**
     * @return the object text size.
     */
    CSize2D GetTextSize();

    /**
     * @see IGUIObject#HandleMessage()
     */
    virtual void HandleMessage(SGUIMessage& Message);

    /**
     * Draws the Button
     */
    virtual void Draw(CCanvas2D& canvas);

    /**
     * @see IGUIObject#IsMouseOver()
     */
    virtual bool IsMouseOver() const;

protected:
    /**
     * Sets up text, should be called every time changes has been
     * made that can change the visual.
     */
    void SetupText();

    /**
     * Picks the text color depending on current object settings.
     */
    const CGUIColor& ChooseColor();

    /**
     * Placement of text.
     */
    CVector2D m_TextPos;

    virtual void CreateJSObject();

    // Settings
    CGUISimpleSetting<float> m_BufferZone;
    CGUISimpleSetting<CGUIString> m_Caption;
    CGUISimpleSetting<CStrW> m_Font;
    CGUISimpleSetting<CGUISpriteInstance> m_Sprite;
    CGUISimpleSetting<CGUISpriteInstance> m_SpriteOver;
    CGUISimpleSetting<CGUISpriteInstance> m_SpritePressed;
    CGUISimpleSetting<CGUISpriteInstance> m_SpriteDisabled;
    CGUISimpleSetting<CGUIColor> m_TextColor;
    CGUISimpleSetting<CGUIColor> m_TextColorOver;
    CGUISimpleSetting<CGUIColor> m_TextColorPressed;
    CGUISimpleSetting<CGUIColor> m_TextColorDisabled;
    CGUIMouseEventMask m_MouseEventMask;
};

#endif // INCLUDED_CBUTTON