/*
===========================================================================
Copyright (C) 2024 the OpenMoHAA team

This file is part of OpenMoHAA source code.

OpenMoHAA source code 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.

OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

#pragma once

typedef enum {
    SLIDER_FLOAT,
    SLIDER_INTEGER
} slidertype_t;

class UISlider : public UIWidget
{
    bool              m_initialized;
    float             m_minvalue;
    float             m_maxvalue;
    int               m_minx;
    int               m_maxx;
    int               m_arrow_width;
    float             m_value;
    float             m_oldvalue;
    float             m_sliderwidth; // Note: this is actually the width of only the thumb, not the whole slider
    UIRect2D          m_sliderregion;
    UIRect2D          m_prev_arrow_region;
    UIRect2D          m_next_arrow_region;
    slidertype_t      m_slidertype;
    float             m_stepsize;
    bool              m_prev_arrow_depressed;
    bool              m_next_arrow_depressed;
    bool              m_thumb_depressed;
    UIReggedMaterial *m_bar_material;
    UIReggedMaterial *m_prev_arrow_material;
    UIReggedMaterial *m_next_arrow_material;
    UIReggedMaterial *m_thumbmaterial;
    UIReggedMaterial *m_prev_arrow_material_pressed;
    UIReggedMaterial *m_next_arrow_material_pressed;
    UIReggedMaterial *m_thumbmaterial_pressed;

public:
    CLASS_PROTOTYPE(UISlider);

private:
    void setThumb(void);
    void Pressed(Event *ev);
    void Released(Event *ev);
    void Increment(void);
    void Decrement(void);
    void AutoIncrement(Event *ev);
    void AutoDecrement(Event *ev);
    void MouseExited(Event *ev);
    void MouseEntered(Event *ev);
    void MouseDragged(Event *ev);
    void LayoutSetRange(Event *ev);
    void LayoutSetType(Event *ev);
    void LayoutSetStep(Event *ev);
    void LayoutSliderBGShader(Event *ev);
    void LayoutSliderThumbShader(Event *ev);
    void LayoutSliderLeftShader(Event *ev);
    void LayoutSliderRightShader(Event *ev);

public:
    UISlider();

    void     Draw(void) override;
    void     FrameInitialized(void) override;
    qboolean KeyEvent(int key, unsigned int time) override;
    void     UpdateData(void) override;
    void     UpdateUIElement(void) override;
    void     setType(slidertype_t type);
    void     setRange(float min, float max);
    void     setStep(float value);
};
