touch screen handler for the microchip AR1020
AreaTouchHandler.cpp
- Committer:
- hlipka
- Date:
- 2011-02-24
- Revision:
- 6:a6971458d612
- Parent:
- 4:510ea5b28a05
File content as of revision 6:a6971458d612:
/* * 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. */ #include "AreaTouchHandler.h" #include "touchevent.h" using namespace std; 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; } }; AreaTouchHandler::AreaTouchHandler(TouchPanel* panel) { panel->attachPenDown(this,&AreaTouchHandler::down); panel->attachPenMove(this,&AreaTouchHandler::move); panel->attachPenUp(this,&AreaTouchHandler::up); } void AreaTouchHandler::addArea(int top, int bottom, int left, int right, int commandCode) { _areas.push_back(new area(top,bottom,left,right,commandCode)); } uint32_t AreaTouchHandler::down(uint32_t arg) { TouchEvent *te=(TouchEvent*)arg; // printf("d %i/%i\n",te->x,te->y); _x=te->x; _y=te->y; _samples=1; int c=findCommand(); _called=false; if (0!=c) { _called=true; _callback.call(c); } return 0; } uint32_t AreaTouchHandler::move(uint32_t arg) { if (_called) return 0; TouchEvent *te=(TouchEvent*)arg; // printf("m %i/%i\n",te->x,te->y); _x=(te->x+_x*_samples)/(_samples+1); _y=(te->y+_y*_samples)/(_samples+1); _samples++; int c=findCommand(); if (0!=c) { _called=true; _callback.call(c); } return 0; } uint32_t AreaTouchHandler::up(uint32_t arg) { _x=0; _y=0; _samples=0; _called=false; return 0; } int AreaTouchHandler::findCommand() { if (_called) return 0; if (_samples<5) return 0; for (list<area*>::iterator it = _areas.begin(); it != _areas.end(); it++) { area* a=*it; if (_x>=a->left && _x<=a->right && _y>=a->top && _y<=a->bottom) return a->command; } return 0; }