Adam Resnick / StepperMotors

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Bitmap.h@0:3058939fa37c, 2012-04-28 (annotated)

Committer:
stretch
Date:
Sat Apr 28 21:08:58 2012 +0000
Revision:
0:3058939fa37c
Child:
1:cf60b60a1b5b
Initial Public Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stretch 0:3058939fa37c 1 /**
stretch 0:3058939fa37c 2 * @author Steven Rhodes
stretch 0:3058939fa37c 3 *
stretch 0:3058939fa37c 4 * @section LICENSE
stretch 0:3058939fa37c 5 *
stretch 0:3058939fa37c 6 * Copyright (c) 2012 Steven Rhodes
stretch 0:3058939fa37c 7 *
stretch 0:3058939fa37c 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
stretch 0:3058939fa37c 9 * of this software and associated documentation files (the "Software"), to deal
stretch 0:3058939fa37c 10 * in the Software without restriction, including without limitation the rights
stretch 0:3058939fa37c 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
stretch 0:3058939fa37c 12 * copies of the Software, and to permit persons to whom the Software is
stretch 0:3058939fa37c 13 * furnished to do so, subject to the following conditions:
stretch 0:3058939fa37c 14 *
stretch 0:3058939fa37c 15 * The above copyright notice and this permission notice shall be included in
stretch 0:3058939fa37c 16 * all copies or substantial portions of the Software.
stretch 0:3058939fa37c 17 *
stretch 0:3058939fa37c 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
stretch 0:3058939fa37c 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
stretch 0:3058939fa37c 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
stretch 0:3058939fa37c 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
stretch 0:3058939fa37c 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
stretch 0:3058939fa37c 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
stretch 0:3058939fa37c 24 * THE SOFTWARE.
stretch 0:3058939fa37c 25
stretch 0:3058939fa37c 26 */
stretch 0:3058939fa37c 27
stretch 0:3058939fa37c 28 #ifndef BITMAP_H
stretch 0:3058939fa37c 29 #define BITMAP_H
stretch 0:3058939fa37c 30
stretch 0:3058939fa37c 31 #include "mbed.h"
stretch 0:3058939fa37c 32
stretch 0:3058939fa37c 33 class Bitmap {
stretch 0:3058939fa37c 34 public:
stretch 0:3058939fa37c 35 /**
stretch 0:3058939fa37c 36 * Constructor to deal with bitmap
stretch 0:3058939fa37c 37 *
stretch 0:3058939fa37c 38 * @param tx mbed pin to use for tx line of Serial interface
stretch 0:3058939fa37c 39 * @param rx mbed pin to use for rx line of Serial interface
stretch 0:3058939fa37c 40 * @param ssid ssid of the adhoc network which will be created
stretch 0:3058939fa37c 41 */
stretch 0:3058939fa37c 42 Bitmap ();
stretch 0:3058939fa37c 43
stretch 0:3058939fa37c 44 /**
stretch 0:3058939fa37c 45 * Load an image into the bitmap.
stretch 0:3058939fa37c 46 *
stretch 0:3058939fa37c 47 * @return true if the image is successfully loaded
stretch 0:3058939fa37c 48 */
stretch 0:3058939fa37c 49 bool openImg(char* filename);
stretch 0:3058939fa37c 50
stretch 0:3058939fa37c 51 /**
stretch 0:3058939fa37c 52 * Change the row we're looking at.
stretch 0:3058939fa37c 53 *
stretch 0:3058939fa37c 54 * @return true if successful.
stretch 0:3058939fa37c 55 */
stretch 0:3058939fa37c 56 bool setRow(int row);
stretch 0:3058939fa37c 57
stretch 0:3058939fa37c 58 /**
stretch 0:3058939fa37c 59 * Get whether we should draw a pixel at the given spot
stretch 0:3058939fa37c 60 *
stretch 0:3058939fa37c 61 * @param pixel The pixel to check
stretch 0:3058939fa37c 62 * @param reversed Whether to reverse the pixel
stretch 0:3058939fa37c 63 * @return true if there's a pixel.
stretch 0:3058939fa37c 64 */
stretch 0:3058939fa37c 65 bool isPixel(int pixel, bool reversed);
stretch 0:3058939fa37c 66 bool isPixel(int pixel);
stretch 0:3058939fa37c 67
stretch 0:3058939fa37c 68 /**
stretch 0:3058939fa37c 69 * Get whether it's a blank row
stretch 0:3058939fa37c 70 *
stretch 0:3058939fa37c 71 * @return true if there are no pixels in the row
stretch 0:3058939fa37c 72 */
stretch 0:3058939fa37c 73 bool isBlankRow(void);
stretch 0:3058939fa37c 74
stretch 0:3058939fa37c 75 /**
stretch 0:3058939fa37c 76 * Return the height of the bitmap
stretch 0:3058939fa37c 77 *
stretch 0:3058939fa37c 78 * @return height
stretch 0:3058939fa37c 79 */
stretch 0:3058939fa37c 80 int getHeight();
stretch 0:3058939fa37c 81
stretch 0:3058939fa37c 82 /**
stretch 0:3058939fa37c 83 * Return the width of the bitmap
stretch 0:3058939fa37c 84 *
stretch 0:3058939fa37c 85 * @return width
stretch 0:3058939fa37c 86 */
stretch 0:3058939fa37c 87 int getWidth();
stretch 0:3058939fa37c 88
stretch 0:3058939fa37c 89 /**
stretch 0:3058939fa37c 90 * Close the image when we're done with it
stretch 0:3058939fa37c 91 *
stretch 0:3058939fa37c 92 * @return true if properly closed
stretch 0:3058939fa37c 93 */
stretch 0:3058939fa37c 94 bool closeImg(void);
stretch 0:3058939fa37c 95
stretch 0:3058939fa37c 96 private:
stretch 0:3058939fa37c 97 FILE * fp;
stretch 0:3058939fa37c 98 bool loaded;
stretch 0:3058939fa37c 99 long offset, width, height, row_size, row_num;
stretch 0:3058939fa37c 100 char * row_data;
stretch 0:3058939fa37c 101
stretch 0:3058939fa37c 102 /**
stretch 0:3058939fa37c 103 * Get the pixel at a position
stretch 0:3058939fa37c 104 * @param pixel column
stretch 0:3058939fa37c 105 *
stretch 0:3058939fa37c 106 * @return true if the pixel is black
stretch 0:3058939fa37c 107 */
stretch 0:3058939fa37c 108 bool pixel(int column);
stretch 0:3058939fa37c 109
stretch 0:3058939fa37c 110 };
stretch 0:3058939fa37c 111 #endif