Hendrik Lipka / ar1020

touch screen handler for the microchip AR1020

AreaTouchHandler.cpp@6:a6971458d612, 2011-02-24 (annotated)

Committer:
hlipka
Date:
Thu Feb 24 22:05:04 2011 +0000
Revision:
6:a6971458d612
Parent:
4:510ea5b28a05 
calibration works now

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hlipka 4:510ea5b28a05 1 /*
hlipka 4:510ea5b28a05 2 * mbed AR1020 library
hlipka 4:510ea5b28a05 3 * Copyright (c) 2010 Hendrik Lipka
hlipka 4:510ea5b28a05 4 *
hlipka 4:510ea5b28a05 5 * Permission is hereby granted, free of charge, to any person obtaining a copy
hlipka 4:510ea5b28a05 6 * of this software and associated documentation files (the "Software"), to deal
hlipka 4:510ea5b28a05 7 * in the Software without restriction, including without limitation the rights
hlipka 4:510ea5b28a05 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hlipka 4:510ea5b28a05 9 * copies of the Software, and to permit persons to whom the Software is
hlipka 4:510ea5b28a05 10 * furnished to do so, subject to the following conditions:
hlipka 4:510ea5b28a05 11 *
hlipka 4:510ea5b28a05 12 * The above copyright notice and this permission notice shall be included in
hlipka 4:510ea5b28a05 13 * all copies or substantial portions of the Software.
hlipka 4:510ea5b28a05 14 *
hlipka 4:510ea5b28a05 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hlipka 4:510ea5b28a05 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hlipka 4:510ea5b28a05 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hlipka 4:510ea5b28a05 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hlipka 4:510ea5b28a05 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hlipka 4:510ea5b28a05 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hlipka 4:510ea5b28a05 21 * THE SOFTWARE.
hlipka 4:510ea5b28a05 22 */
hlipka 4:510ea5b28a05 23
hlipka 4:510ea5b28a05 24 #include "AreaTouchHandler.h"
hlipka 4:510ea5b28a05 25 #include "touchevent.h"
hlipka 4:510ea5b28a05 26
hlipka 4:510ea5b28a05 27 using namespace std;
hlipka 4:510ea5b28a05 28
hlipka 4:510ea5b28a05 29 class area
hlipka 4:510ea5b28a05 30 {
hlipka 4:510ea5b28a05 31 public:
hlipka 4:510ea5b28a05 32 int top,bottom,left,right,command;
hlipka 4:510ea5b28a05 33 area(int top, int bottom, int left, int right, int command)
hlipka 4:510ea5b28a05 34 {
hlipka 4:510ea5b28a05 35 this->top=top;
hlipka 4:510ea5b28a05 36 this->bottom=bottom;
hlipka 4:510ea5b28a05 37 this->left=left;
hlipka 4:510ea5b28a05 38 this->right=right;
hlipka 4:510ea5b28a05 39 this->command=command;
hlipka 4:510ea5b28a05 40 }
hlipka 4:510ea5b28a05 41 };
hlipka 4:510ea5b28a05 42
hlipka 4:510ea5b28a05 43 AreaTouchHandler::AreaTouchHandler(TouchPanel* panel)
hlipka 4:510ea5b28a05 44 {
hlipka 4:510ea5b28a05 45 panel->attachPenDown(this,&AreaTouchHandler::down);
hlipka 4:510ea5b28a05 46 panel->attachPenMove(this,&AreaTouchHandler::move);
hlipka 4:510ea5b28a05 47 panel->attachPenUp(this,&AreaTouchHandler::up);
hlipka 4:510ea5b28a05 48 }
hlipka 4:510ea5b28a05 49
hlipka 4:510ea5b28a05 50 void AreaTouchHandler::addArea(int top, int bottom, int left, int right, int commandCode)
hlipka 4:510ea5b28a05 51 {
hlipka 4:510ea5b28a05 52 _areas.push_back(new area(top,bottom,left,right,commandCode));
hlipka 4:510ea5b28a05 53 }
hlipka 4:510ea5b28a05 54
hlipka 4:510ea5b28a05 55 uint32_t AreaTouchHandler::down(uint32_t arg)
hlipka 4:510ea5b28a05 56 {
hlipka 4:510ea5b28a05 57 TouchEvent *te=(TouchEvent*)arg;
hlipka 4:510ea5b28a05 58 // printf("d %i/%i\n",te->x,te->y);
hlipka 4:510ea5b28a05 59 _x=te->x;
hlipka 4:510ea5b28a05 60 _y=te->y;
hlipka 4:510ea5b28a05 61 _samples=1;
hlipka 4:510ea5b28a05 62 int c=findCommand();
hlipka 4:510ea5b28a05 63 _called=false;
hlipka 4:510ea5b28a05 64 if (0!=c)
hlipka 4:510ea5b28a05 65 {
hlipka 4:510ea5b28a05 66 _called=true;
hlipka 4:510ea5b28a05 67 _callback.call(c);
hlipka 4:510ea5b28a05 68 }
hlipka 4:510ea5b28a05 69 return 0;
hlipka 4:510ea5b28a05 70 }
hlipka 4:510ea5b28a05 71 uint32_t AreaTouchHandler::move(uint32_t arg)
hlipka 4:510ea5b28a05 72 {
hlipka 4:510ea5b28a05 73 if (_called)
hlipka 4:510ea5b28a05 74 return 0;
hlipka 4:510ea5b28a05 75 TouchEvent *te=(TouchEvent*)arg;
hlipka 4:510ea5b28a05 76 // printf("m %i/%i\n",te->x,te->y);
hlipka 4:510ea5b28a05 77 _x=(te->x+_x*_samples)/(_samples+1);
hlipka 4:510ea5b28a05 78 _y=(te->y+_y*_samples)/(_samples+1);
hlipka 4:510ea5b28a05 79 _samples++;
hlipka 4:510ea5b28a05 80 int c=findCommand();
hlipka 4:510ea5b28a05 81 if (0!=c)
hlipka 4:510ea5b28a05 82 {
hlipka 4:510ea5b28a05 83 _called=true;
hlipka 4:510ea5b28a05 84 _callback.call(c);
hlipka 4:510ea5b28a05 85 }
hlipka 4:510ea5b28a05 86 return 0;
hlipka 4:510ea5b28a05 87 }
hlipka 4:510ea5b28a05 88 uint32_t AreaTouchHandler::up(uint32_t arg)
hlipka 4:510ea5b28a05 89 {
hlipka 4:510ea5b28a05 90 _x=0;
hlipka 4:510ea5b28a05 91 _y=0;
hlipka 4:510ea5b28a05 92 _samples=0;
hlipka 4:510ea5b28a05 93 _called=false;
hlipka 4:510ea5b28a05 94 return 0;
hlipka 4:510ea5b28a05 95 }
hlipka 4:510ea5b28a05 96
hlipka 4:510ea5b28a05 97 int AreaTouchHandler::findCommand()
hlipka 4:510ea5b28a05 98 {
hlipka 4:510ea5b28a05 99 if (_called)
hlipka 4:510ea5b28a05 100 return 0;
hlipka 4:510ea5b28a05 101 if (_samples<5)
hlipka 4:510ea5b28a05 102 return 0;
hlipka 4:510ea5b28a05 103 for (list<area*>::iterator it = _areas.begin(); it != _areas.end(); it++) {
hlipka 4:510ea5b28a05 104 area* a=*it;
hlipka 4:510ea5b28a05 105 if (_x>=a->left && _x<=a->right && _y>=a->top && _y<=a->bottom)
hlipka 4:510ea5b28a05 106 return a->command;
hlipka 4:510ea5b28a05 107 }
hlipka 4:510ea5b28a05 108 return 0;
hlipka 4:510ea5b28a05 109 }