colobot/src/ui/scroll.h

// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
// *
// * This program 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 3 of the License, or
// * (at your option) any later version.
// *
// * This program 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 this program. If not, see  http://www.gnu.org/licenses/.

// scroll.h

#pragma once


#include <ui/control.h>

#include <common/event.h>

namespace Ui {

class CButton;

const float SCROLL_WIDTH = (15.0f/640.0f);



class CScroll : public CControl
{
    public:
        CScroll();
        ~CScroll();

        bool        Create(Math::Point pos, Math::Point dim, int icon, EventType eventMsg);

        void        SetPos(Math::Point pos);
        void        SetDim(Math::Point dim);

        bool        SetState(int state, bool bState);
        bool        SetState(int state);
        bool        ClearState(int state);

        bool        EventProcess(const Event &event);
        void        Draw();

        void        SetVisibleValue(float value);
        float       GetVisibleValue();

        void        SetVisibleRatio(float value);
        float       GetVisibleRatio();

        void        SetArrowStep(float step);
        float       GetArrowStep();

    protected:
        void        MoveAdjust();
        void        AdjustGlint();
        void        DrawVertex(Math::Point pos, Math::Point dim, int icon);

    protected:
        CButton*    m_buttonUp;
        CButton*    m_buttonDown;

        float       m_visibleValue;
        float       m_visibleRatio;
        float       m_step;

        bool        m_bCapture;
        Math::Point     m_pressPos;
        float       m_pressValue;

        EventType    m_eventUp;
        EventType    m_eventDown;
};


}