WidgetSlider.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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/>.
 *
 */

/*
 * Copyright (C) 2006-2010 - Frictional Games
 *
 * This file is part of HPL1 Engine.
 */

#ifndef HPL_WIDGET_SLIDER_H
#define HPL_WIDGET_SLIDER_H

#include "hpl1/engine/gui/Widget.h"

namespace hpl {

class cGuiSkinFont;

class cWidgetButton;

//---------------------------------------------

class cWidgetSlider : public iWidget {
public:
    cWidgetSlider(cGuiSet *apSet, cGuiSkin *apSkin, eWidgetSliderOrientation aOrientation);
    virtual ~cWidgetSlider();

    int GetValue() { return mlValue; }
    void SetValue(int alValue);

    int GetMaxValue() { return mlMaxValue; }
    void SetMaxValue(int alMax);

    int GetButtonValueAdd() { return mlButtonValueAdd; }
    void SetButtonValueAdd(int alAdd);

    int GetBarValueSize() { return mlBarValueSize; }
    void SetBarValueSize(int alSize);

    float GetButtonSize() const { return mfButtonSize; }

protected:
    // Own functions
    void UpdateBarProperties();

    bool ArrowButtonDown(iWidget *apWidget, cGuiMessageData &aData);
    kGuiCalllbackDeclarationEnd(ArrowButtonDown);

    // Implemented functions
    void OnInit();
    void OnLoadGraphics();
    void OnChangeSize();
    void OnChangePosition();

    void OnDraw(float afTimeStep, cGuiClipRegion *apClipRegion);

    bool OnMouseMove(cGuiMessageData &aData);
    bool OnMouseDown(cGuiMessageData &aData);
    bool OnMouseUp(cGuiMessageData &aData);
    bool OnMouseEnter(cGuiMessageData &aData);
    bool OnMouseLeave(cGuiMessageData &aData);

    bool OnLostFocus(cGuiMessageData &aData);

    // Data
    eWidgetSliderOrientation mOrientation;

    bool mbPressed;

    float mfButtonSize;

    int mlValue;
    int mlMaxValue;
    int mlButtonValueAdd;
    int mlBarValueSize; // This is how big the bar is compared to the max value of the slider
    float mfValueStep;

    cVector3f mvBarPos;
    cVector2f mvBarSize;
    float mfSliderSize;
    cRect2f mBarRect;
    float mfMaxPos;
    float mfMinPos;

    cVector2f mvRelMousePos;

    cWidgetButton *mvButtons[2];

    cGuiGfxElement *mpGfxButtonBackground;
    cGuiGfxElement *mvGfxBorders[4];
    cGuiGfxElement *mvGfxCorners[4];

    cGuiGfxElement *mvGfxArrow[2];
    cGuiGfxElement *mpGfxBackground;
};

} // namespace hpl

#endif // HPL_WIDGET_SLIDER_H