touch screen handler for the microchip AR1020
AreaTouchHandler.cpp@4:510ea5b28a05, 2011-02-24 (annotated)
- Committer:
- hlipka
- Date:
- Thu Feb 24 14:00:17 2011 +0000
- Revision:
- 4:510ea5b28a05
- Parent:
- 3:b7eb3b3fe79f
better documentation
added power handling (AR1020 is switched on by this library now)
added touch area handler for easier creation of menus and the like
Who changed what in which revision?
User | Revision | Line number | New 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 | } |