touch screen handler for the microchip AR1020

AreaTouchHandler.h

Committer:
hlipka
Date:
2011-02-22
Revision:
1:264ad2a00fd9
Child:
4:510ea5b28a05

File content as of revision 1:264ad2a00fd9:

/*
* mbed AR1020 library
* Copyright (c) 2010 Hendrik Lipka
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

#ifndef __AREATOUCHHANDLER_H__
#define __AREATOUCHHANDLER_H__

#include "mbed.h"
#include "FPointer.h"
#include "touchpanel.h"
#include <list>

class area
{
    public:
    int top,bottom,left,right,command;
    area(int top, int bottom, int left, int right, int command)
    {
        this->top=top;
        this->bottom=bottom;
        this->left=left;
        this->right=right;
        this->command=command;
    }
};

class AreaTouchHandler
{
    public:
        AreaTouchHandler(TouchPanel* panel)
        {
            panel->attachPenDown(this,&AreaTouchHandler::down);
            panel->attachPenMove(this,&AreaTouchHandler::move);
            panel->attachPenUp(this,&AreaTouchHandler::up);
        }
        class T;
        template<class T> 
        void attach(T* item, uint32_t (T::*method)(uint32_t)) { _callback.attach(item, method); }   
        void attach(uint32_t (*function)(uint32_t)) { _callback.attach(function); }   
        
        void addArea(int top, int bottom, int left, int right, int commandCode)
        {
            _areas.push_back(new area(top,bottom,left,right,commandCode));
        }
    private:
        FPointer      _callback;
        std::list<area*> _areas;
        uint32_t down(uint32_t arg);
        uint32_t move(uint32_t arg);
        uint32_t up(uint32_t arg);
        
        int findCommand();
        
        float _x, _y;
        int _samples;
        bool _called;
};


#endif