Chris Womack / DMBasicGUI

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Fork of DMBasicGUI by Embedded Artists

Application/DigitButton.cpp@10:651861441108, 2015-01-26 (annotated)

Committer:
embeddedartists
Date:
Mon Jan 26 10:06:58 2015 +0100
Revision:
10:651861441108
Parent:
9:ce69a7adfe9c 
- Added virtual destructors to avoid undefined behaviour

- Fixed compiler warnings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 7:4ba7bd9d32ef 1 /*
embeddedartists 7:4ba7bd9d32ef 2 * Copyright 2014 Embedded Artists AB
embeddedartists 7:4ba7bd9d32ef 3 *
embeddedartists 7:4ba7bd9d32ef 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 7:4ba7bd9d32ef 5 * you may not use this file except in compliance with the License.
embeddedartists 7:4ba7bd9d32ef 6 * You may obtain a copy of the License at
embeddedartists 7:4ba7bd9d32ef 7 *
embeddedartists 7:4ba7bd9d32ef 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 7:4ba7bd9d32ef 9 *
embeddedartists 7:4ba7bd9d32ef 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 7:4ba7bd9d32ef 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 7:4ba7bd9d32ef 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 7:4ba7bd9d32ef 13 * See the License for the specific language governing permissions and
embeddedartists 7:4ba7bd9d32ef 14 * limitations under the License.
embeddedartists 7:4ba7bd9d32ef 15 */
embeddedartists 7:4ba7bd9d32ef 16
embeddedartists 7:4ba7bd9d32ef 17 #include "DigitButton.h"
embeddedartists 7:4ba7bd9d32ef 18 #include "mbed.h"
embeddedartists 7:4ba7bd9d32ef 19 #include "DMBoard.h"
embeddedartists 7:4ba7bd9d32ef 20
embeddedartists 7:4ba7bd9d32ef 21 #include "lpc_swim_image.h"
embeddedartists 7:4ba7bd9d32ef 22
embeddedartists 7:4ba7bd9d32ef 23 DigitButton::DigitButton(COLOR_T* fb, uint16_t x, uint16_t y, uint16_t width, uint16_t height) :
embeddedartists 7:4ba7bd9d32ef 24 Clickable(fb, x, y, width, height), _value(0), _digits(1), _img_y_offset(0),
embeddedartists 7:4ba7bd9d32ef 25 _img_digit_height(0), _img_digit_width(0), _img_digit_size(0)
embeddedartists 7:4ba7bd9d32ef 26 {
embeddedartists 9:ce69a7adfe9c 27 _imgUp.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 28 _imgUp.pixels = NULL;
embeddedartists 9:ce69a7adfe9c 29 _imgDown.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 30 _imgDown.pixels = NULL;
embeddedartists 7:4ba7bd9d32ef 31 _win.fill = WHITE;
embeddedartists 7:4ba7bd9d32ef 32 swim_clear_screen(&_win, _win.fill);
embeddedartists 7:4ba7bd9d32ef 33 }
embeddedartists 7:4ba7bd9d32ef 34
embeddedartists 7:4ba7bd9d32ef 35 DigitButton::~DigitButton()
embeddedartists 7:4ba7bd9d32ef 36 {
embeddedartists 9:ce69a7adfe9c 37 if (_imgUp.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 38 free(_imgUp.pointerToFree);
embeddedartists 9:ce69a7adfe9c 39 _imgUp.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 40 }
embeddedartists 9:ce69a7adfe9c 41 if (_imgDown.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 42 free(_imgDown.pointerToFree);
embeddedartists 9:ce69a7adfe9c 43 _imgDown.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 44 }
embeddedartists 7:4ba7bd9d32ef 45 }
embeddedartists 7:4ba7bd9d32ef 46
embeddedartists 7:4ba7bd9d32ef 47 bool DigitButton::loadImages(const char* imgUp, const char* imgDown)
embeddedartists 7:4ba7bd9d32ef 48 {
embeddedartists 9:ce69a7adfe9c 49 if (_imgUp.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 50 free(_imgUp.pointerToFree);
embeddedartists 9:ce69a7adfe9c 51 _imgUp.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 52 }
embeddedartists 9:ce69a7adfe9c 53 if (_imgDown.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 54 free(_imgDown.pointerToFree);
embeddedartists 9:ce69a7adfe9c 55 _imgDown.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 56 }
embeddedartists 7:4ba7bd9d32ef 57 if (Image::decode(imgUp, Image::RES_16BIT, &_imgUp) != 0) {
embeddedartists 7:4ba7bd9d32ef 58 DMBoard::instance().logger()->printf("Failed to load %s\n", imgUp);
embeddedartists 7:4ba7bd9d32ef 59 return false;
embeddedartists 7:4ba7bd9d32ef 60 }
embeddedartists 7:4ba7bd9d32ef 61 if (imgDown != NULL) {
embeddedartists 7:4ba7bd9d32ef 62 if (Image::decode(imgDown, Image::RES_16BIT, &_imgDown) == 0) {
embeddedartists 7:4ba7bd9d32ef 63 DMBoard::instance().logger()->printf("Failed to load %s\n", imgDown);
embeddedartists 7:4ba7bd9d32ef 64 return false;
embeddedartists 7:4ba7bd9d32ef 65 }
embeddedartists 7:4ba7bd9d32ef 66 }
embeddedartists 7:4ba7bd9d32ef 67 _img_digit_width = _imgUp.width;
embeddedartists 7:4ba7bd9d32ef 68 _img_digit_height = _imgUp.height/10;
embeddedartists 7:4ba7bd9d32ef 69 _img_y_offset = _imgUp.height - 10*_img_digit_height;
embeddedartists 7:4ba7bd9d32ef 70 _img_digit_size = ((_imgUp.res == Image::RES_16BIT)?1:2) * _img_digit_height * _img_digit_width;
embeddedartists 7:4ba7bd9d32ef 71 return true;
embeddedartists 7:4ba7bd9d32ef 72 }
embeddedartists 7:4ba7bd9d32ef 73
embeddedartists 9:ce69a7adfe9c 74 bool DigitButton::loadImages(const Image::ImageData_t* imgUp, const Image::ImageData_t* imgDown)
embeddedartists 9:ce69a7adfe9c 75 {
embeddedartists 9:ce69a7adfe9c 76 if (_imgUp.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 77 free(_imgUp.pointerToFree);
embeddedartists 9:ce69a7adfe9c 78 _imgUp.pointerToFree = NULL;
embeddedartists 9:ce69a7adfe9c 79 }
embeddedartists 9:ce69a7adfe9c 80 if (_imgDown.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 81 free(_imgDown.pointerToFree);
embeddedartists 9:ce69a7adfe9c 82 _imgDown.pointerToFree = NULL;
embeddedartists 9:ce69a7adfe9c 83 }
embeddedartists 9:ce69a7adfe9c 84 memcpy(&_imgUp, imgUp, sizeof(Image::ImageData_t));
embeddedartists 9:ce69a7adfe9c 85 if (imgDown != NULL) {
embeddedartists 9:ce69a7adfe9c 86 memcpy(&_imgDown, imgDown, sizeof(Image::ImageData_t));
embeddedartists 9:ce69a7adfe9c 87 }
embeddedartists 9:ce69a7adfe9c 88 _img_digit_width = _imgUp.width;
embeddedartists 9:ce69a7adfe9c 89 _img_digit_height = _imgUp.height/10;
embeddedartists 9:ce69a7adfe9c 90 _img_y_offset = _imgUp.height - 10*_img_digit_height;
embeddedartists 9:ce69a7adfe9c 91 _img_digit_size = ((_imgUp.res == Image::RES_16BIT)?1:2) * _img_digit_height * _img_digit_width;
embeddedartists 9:ce69a7adfe9c 92 return true;
embeddedartists 9:ce69a7adfe9c 93 }
embeddedartists 9:ce69a7adfe9c 94
embeddedartists 7:4ba7bd9d32ef 95 bool DigitButton::loadImages(const unsigned char* imgUp, unsigned int imgUpSize,
embeddedartists 7:4ba7bd9d32ef 96 const unsigned char* imgDown, unsigned int imgDownSize)
embeddedartists 7:4ba7bd9d32ef 97 {
embeddedartists 9:ce69a7adfe9c 98 if (_imgUp.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 99 free(_imgUp.pointerToFree);
embeddedartists 9:ce69a7adfe9c 100 _imgUp.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 101 }
embeddedartists 9:ce69a7adfe9c 102 if (_imgDown.pointerToFree != NULL) {
embeddedartists 9:ce69a7adfe9c 103 free(_imgDown.pointerToFree);
embeddedartists 9:ce69a7adfe9c 104 _imgDown.pointerToFree = NULL;
embeddedartists 7:4ba7bd9d32ef 105 }
embeddedartists 7:4ba7bd9d32ef 106 if (Image::decode(imgUp, imgUpSize, Image::RES_16BIT, &_imgUp) != 0) {
embeddedartists 7:4ba7bd9d32ef 107 DMBoard::instance().logger()->printf("Failed to load %s\n", imgUp);
embeddedartists 7:4ba7bd9d32ef 108 return false;
embeddedartists 7:4ba7bd9d32ef 109 }
embeddedartists 7:4ba7bd9d32ef 110 if (imgDown != NULL) {
embeddedartists 7:4ba7bd9d32ef 111 if (Image::decode(imgDown, imgDownSize, Image::RES_16BIT, &_imgDown) == 0) {
embeddedartists 7:4ba7bd9d32ef 112 DMBoard::instance().logger()->printf("Failed to load %s\n", imgDown);
embeddedartists 7:4ba7bd9d32ef 113 return false;
embeddedartists 7:4ba7bd9d32ef 114 }
embeddedartists 7:4ba7bd9d32ef 115 }
embeddedartists 7:4ba7bd9d32ef 116 _img_digit_width = _imgUp.width;
embeddedartists 7:4ba7bd9d32ef 117 _img_digit_height = _imgUp.height/10;
embeddedartists 7:4ba7bd9d32ef 118 _img_y_offset = _imgUp.height - 10*_img_digit_height;
embeddedartists 7:4ba7bd9d32ef 119 _img_digit_size = ((_imgUp.res == Image::RES_16BIT)?1:2) * _img_digit_height * _img_digit_width;
embeddedartists 7:4ba7bd9d32ef 120 return true;
embeddedartists 7:4ba7bd9d32ef 121 }
embeddedartists 7:4ba7bd9d32ef 122
embeddedartists 7:4ba7bd9d32ef 123 void DigitButton::setNumDigits(unsigned int num)
embeddedartists 7:4ba7bd9d32ef 124 {
embeddedartists 7:4ba7bd9d32ef 125 _digits = num;
embeddedartists 7:4ba7bd9d32ef 126 draw();
embeddedartists 7:4ba7bd9d32ef 127 }
embeddedartists 7:4ba7bd9d32ef 128
embeddedartists 7:4ba7bd9d32ef 129 void DigitButton::setValue(unsigned int val)
embeddedartists 7:4ba7bd9d32ef 130 {
embeddedartists 7:4ba7bd9d32ef 131 _value = val;
embeddedartists 7:4ba7bd9d32ef 132 draw();
embeddedartists 7:4ba7bd9d32ef 133 }
embeddedartists 7:4ba7bd9d32ef 134
embeddedartists 7:4ba7bd9d32ef 135 void DigitButton::draw(COLOR_T* fb)
embeddedartists 7:4ba7bd9d32ef 136 {
embeddedartists 7:4ba7bd9d32ef 137 if (fb != NULL) {
embeddedartists 7:4ba7bd9d32ef 138 _win.fb = fb;
embeddedartists 7:4ba7bd9d32ef 139 }
embeddedartists 7:4ba7bd9d32ef 140 // if (_pressed) {
embeddedartists 7:4ba7bd9d32ef 141 // if (_imgDown.pixels != NULL) {
embeddedartists 7:4ba7bd9d32ef 142 // swim_put_image(&_win, _imgDown.pixels, _imgDown.width, _imgDown.height);
embeddedartists 7:4ba7bd9d32ef 143 // }
embeddedartists 7:4ba7bd9d32ef 144 // } else {
embeddedartists 7:4ba7bd9d32ef 145 // if (_imgUp.pixels != NULL) {
embeddedartists 7:4ba7bd9d32ef 146 // swim_put_image(&_win, _imgUp.pixels, _imgUp.width, _imgUp.height);
embeddedartists 7:4ba7bd9d32ef 147 // }
embeddedartists 7:4ba7bd9d32ef 148 // }
embeddedartists 7:4ba7bd9d32ef 149 drawDigits(_pressed ? _imgDown : _imgUp);
embeddedartists 7:4ba7bd9d32ef 150 }
embeddedartists 7:4ba7bd9d32ef 151
embeddedartists 7:4ba7bd9d32ef 152 void DigitButton::drawDigits(Image::ImageData_t& img)
embeddedartists 7:4ba7bd9d32ef 153 {
embeddedartists 7:4ba7bd9d32ef 154 if (img.pixels != NULL) {
embeddedartists 7:4ba7bd9d32ef 155 uint32_t v = _value;
embeddedartists 7:4ba7bd9d32ef 156 int x = (_win.xvsize - (_digits*_img_digit_width))/2;
embeddedartists 7:4ba7bd9d32ef 157 if (x < 0) {
embeddedartists 7:4ba7bd9d32ef 158 x = 0;
embeddedartists 7:4ba7bd9d32ef 159 }
embeddedartists 7:4ba7bd9d32ef 160 int y = (_win.yvsize - _img_digit_height)/2;
embeddedartists 10:651861441108 161 for (unsigned int i = 0; i < _digits; i++) {
embeddedartists 7:4ba7bd9d32ef 162 uint32_t off = (v % 10)*_img_digit_size + _img_y_offset*_img_digit_width;
embeddedartists 7:4ba7bd9d32ef 163 swim_put_image_xy(&_win, _imgUp.pixels+off, _img_digit_width, _img_digit_height, x+(_digits-i-1)*_img_digit_width, y);
embeddedartists 7:4ba7bd9d32ef 164 v = v/10;
embeddedartists 7:4ba7bd9d32ef 165 }
embeddedartists 7:4ba7bd9d32ef 166 }
embeddedartists 7:4ba7bd9d32ef 167 }