ds_event.h

/* Copyright (C) 2017 - 2024, Thornwave Labs Inc - All Rights Reserved.
 * Unauthorized copying of this file, via any medium is strictly prohibited.
 * Proprietary and confidential.
 * Written by Razvan Turiac <razvan.turiac@thornwave.com>
*/
 
#ifndef _DS_EVENT_H
#define _DS_EVENT_H
 
 
#include <ds_types.h>
#include <ds_geometry.h>
 
 
struct DsPaintEvent
{
    DsRect region;
};
 
 
struct DsTouchEvent
{
    enum class Mode
    {
        ON,         
        OFF,        
        CONTACT,    
        ENTER,      
        EXIT        
    };
 
    Mode mode;                  
    DsPoint pos;                
    uint32_t timestamp;         
};
 
 
struct DsEvent
{
    enum class Type
    {
        EXIT = 0,
        
        PAINT = 1,
        UPDATE = 2,
        VSYNC = 3,
 
        TOUCH = 4,
        KEYBOARD = 5,
 
        LAMBDA = 6,
    };
 
    union Params
    {
        Params(): cb()
        {
        }
 
        ~Params()
        {
        }
 
        DsPaintEvent paint;
        DsTouchEvent touch;
        int32_t key;
 
        lambda<void(void), 64> cb;
    };
 
    Type type;
    Params params;
 
    DsEvent()
    {
    }
 
    DsEvent(const DsEvent &rhs): type(rhs.type)
    {
        switch(type)
        {
            case Type::PAINT: params.paint = rhs.params.paint; break;
            case Type::TOUCH: params.touch = rhs.params.touch; break;
            case Type::KEYBOARD: params.key = rhs.params.key; break;
            case Type::LAMBDA: params.cb = rhs.params.cb; break;
 
            default: break;
        }
    }
 
    DsEvent& operator=(const DsEvent &rhs)
    {
        type = rhs.type;
 
        switch(type)
        {
            case Type::PAINT: params.paint = rhs.params.paint; break;
            case Type::TOUCH: params.touch = rhs.params.touch; break;
            case Type::KEYBOARD: params.key = rhs.params.key; break;
            case Type::LAMBDA: params.cb = rhs.params.cb; break;
 
            default: break;
        }
 
        return *this;
    }
};
 
 
#endif