Pallavi Prasad / TFT_4DGL

uVGA II for display using vga

Dependents:   4DGL

TFT_4DGL_Text.cpp@0:6741e7724181, 2012-10-11 (annotated)

Committer:
pprasad7
Date:
Thu Oct 11 20:12:02 2012 +0000
Revision:
0:6741e7724181
hangman

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pprasad7 0:6741e7724181 1 //
pprasad7 0:6741e7724181 2 // TFT_4DGL is a class to drive 4D Systems TFT touch screens
pprasad7 0:6741e7724181 3 //
pprasad7 0:6741e7724181 4 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
pprasad7 0:6741e7724181 5 //
pprasad7 0:6741e7724181 6 // TFT_4DGL is free software: you can redistribute it and/or modify
pprasad7 0:6741e7724181 7 // it under the terms of the GNU General Public License as published by
pprasad7 0:6741e7724181 8 // the Free Software Foundation, either version 3 of the License, or
pprasad7 0:6741e7724181 9 // (at your option) any later version.
pprasad7 0:6741e7724181 10 //
pprasad7 0:6741e7724181 11 // TFT_4DGL is distributed in the hope that it will be useful,
pprasad7 0:6741e7724181 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
pprasad7 0:6741e7724181 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
pprasad7 0:6741e7724181 14 // GNU General Public License for more details.
pprasad7 0:6741e7724181 15 //
pprasad7 0:6741e7724181 16 // You should have received a copy of the GNU General Public License
pprasad7 0:6741e7724181 17 // along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
pprasad7 0:6741e7724181 18
pprasad7 0:6741e7724181 19 #include "mbed.h"
pprasad7 0:6741e7724181 20 #include "TFT_4DGL.h"
pprasad7 0:6741e7724181 21 #include <stdarg.h>
pprasad7 0:6741e7724181 22 #include <stdio.h>
pprasad7 0:6741e7724181 23
pprasad7 0:6741e7724181 24
pprasad7 0:6741e7724181 25 //****************************************************************************************************
pprasad7 0:6741e7724181 26 void TFT_4DGL :: set_font(char mode) { // set font size
pprasad7 0:6741e7724181 27 char command[2]= "";
pprasad7 0:6741e7724181 28
pprasad7 0:6741e7724181 29 int w, h, fx = 8, fy = 8;
pprasad7 0:6741e7724181 30
pprasad7 0:6741e7724181 31 command[0] = SETFONT;
pprasad7 0:6741e7724181 32 command[1] = mode;
pprasad7 0:6741e7724181 33
pprasad7 0:6741e7724181 34 current_font = mode;
pprasad7 0:6741e7724181 35
pprasad7 0:6741e7724181 36 if (current_orientation == IS_PORTRAIT) {
pprasad7 0:6741e7724181 37 w = SIZE_X;
pprasad7 0:6741e7724181 38 h = SIZE_Y;
pprasad7 0:6741e7724181 39 } else {
pprasad7 0:6741e7724181 40 w = SIZE_Y;
pprasad7 0:6741e7724181 41 h = SIZE_X;
pprasad7 0:6741e7724181 42 }
pprasad7 0:6741e7724181 43
pprasad7 0:6741e7724181 44 switch (mode) {
pprasad7 0:6741e7724181 45 case FONT_5X7 :
pprasad7 0:6741e7724181 46 fx = 6;
pprasad7 0:6741e7724181 47 fy = 8;
pprasad7 0:6741e7724181 48 break;
pprasad7 0:6741e7724181 49 case FONT_8X8 :
pprasad7 0:6741e7724181 50 fx = 8;
pprasad7 0:6741e7724181 51 fy = 8;
pprasad7 0:6741e7724181 52 break;
pprasad7 0:6741e7724181 53 case FONT_8X12 :
pprasad7 0:6741e7724181 54 fx = 8;
pprasad7 0:6741e7724181 55 fy = 12;
pprasad7 0:6741e7724181 56 break;
pprasad7 0:6741e7724181 57 case FONT_12X16 :
pprasad7 0:6741e7724181 58 fx = 12;
pprasad7 0:6741e7724181 59 fy = 16;
pprasad7 0:6741e7724181 60 break;
pprasad7 0:6741e7724181 61 }
pprasad7 0:6741e7724181 62
pprasad7 0:6741e7724181 63 max_col = w / fx;
pprasad7 0:6741e7724181 64 max_row = h / fy;
pprasad7 0:6741e7724181 65
pprasad7 0:6741e7724181 66 writeCOMMAND(command, 2);
pprasad7 0:6741e7724181 67 }
pprasad7 0:6741e7724181 68
pprasad7 0:6741e7724181 69 //****************************************************************************************************
pprasad7 0:6741e7724181 70 void TFT_4DGL :: text_mode(char mode) { // set text mode
pprasad7 0:6741e7724181 71 char command[2]= "";
pprasad7 0:6741e7724181 72
pprasad7 0:6741e7724181 73 command[0] = TEXTMODE;
pprasad7 0:6741e7724181 74 command[1] = mode;
pprasad7 0:6741e7724181 75
pprasad7 0:6741e7724181 76 writeCOMMAND(command, 2);
pprasad7 0:6741e7724181 77 }
pprasad7 0:6741e7724181 78
pprasad7 0:6741e7724181 79 //****************************************************************************************************
pprasad7 0:6741e7724181 80 void TFT_4DGL :: text_char(char c, char col, char row, int color) { // draw a text char
pprasad7 0:6741e7724181 81 char command[6]= "";
pprasad7 0:6741e7724181 82
pprasad7 0:6741e7724181 83 command[0] = TEXTCHAR;
pprasad7 0:6741e7724181 84
pprasad7 0:6741e7724181 85 command[1] = c;
pprasad7 0:6741e7724181 86 command[2] = col;
pprasad7 0:6741e7724181 87 command[3] = row;
pprasad7 0:6741e7724181 88
pprasad7 0:6741e7724181 89 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
pprasad7 0:6741e7724181 90 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
pprasad7 0:6741e7724181 91 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
pprasad7 0:6741e7724181 92
pprasad7 0:6741e7724181 93 command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
pprasad7 0:6741e7724181 94 command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
pprasad7 0:6741e7724181 95
pprasad7 0:6741e7724181 96 writeCOMMAND(command, 8);
pprasad7 0:6741e7724181 97 }
pprasad7 0:6741e7724181 98
pprasad7 0:6741e7724181 99 //****************************************************************************************************
pprasad7 0:6741e7724181 100 void TFT_4DGL :: graphic_char(char c, int x, int y, int color, char width, char height) { // draw a graphic char
pprasad7 0:6741e7724181 101 char command[10]= "";
pprasad7 0:6741e7724181 102
pprasad7 0:6741e7724181 103 command[0] = GRAPHCHAR;
pprasad7 0:6741e7724181 104
pprasad7 0:6741e7724181 105 command[1] = c;
pprasad7 0:6741e7724181 106
pprasad7 0:6741e7724181 107 command[2] = (x >> 8) & 0xFF;
pprasad7 0:6741e7724181 108 command[3] = x & 0xFF;
pprasad7 0:6741e7724181 109
pprasad7 0:6741e7724181 110 command[4] = (y >> 8) & 0xFF;
pprasad7 0:6741e7724181 111 command[5] = y & 0xFF;
pprasad7 0:6741e7724181 112
pprasad7 0:6741e7724181 113 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
pprasad7 0:6741e7724181 114 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
pprasad7 0:6741e7724181 115 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
pprasad7 0:6741e7724181 116
pprasad7 0:6741e7724181 117 command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
pprasad7 0:6741e7724181 118 command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
pprasad7 0:6741e7724181 119
pprasad7 0:6741e7724181 120 command[8] = width;
pprasad7 0:6741e7724181 121
pprasad7 0:6741e7724181 122 command[9] = height;
pprasad7 0:6741e7724181 123
pprasad7 0:6741e7724181 124 writeCOMMAND(command, 10);
pprasad7 0:6741e7724181 125 }
pprasad7 0:6741e7724181 126
pprasad7 0:6741e7724181 127 //****************************************************************************************************
pprasad7 0:6741e7724181 128 void TFT_4DGL :: text_string(char *s, char col, char row, char font, int color) { // draw a text string
pprasad7 0:6741e7724181 129
pprasad7 0:6741e7724181 130 char command[1000]= "";
pprasad7 0:6741e7724181 131 int size = strlen(s);
pprasad7 0:6741e7724181 132 int i = 0;
pprasad7 0:6741e7724181 133
pprasad7 0:6741e7724181 134 command[0] = TEXTSTRING;
pprasad7 0:6741e7724181 135
pprasad7 0:6741e7724181 136 command[1] = col;
pprasad7 0:6741e7724181 137 command[2] = row;
pprasad7 0:6741e7724181 138
pprasad7 0:6741e7724181 139 command[3] = font;
pprasad7 0:6741e7724181 140
pprasad7 0:6741e7724181 141 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
pprasad7 0:6741e7724181 142 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
pprasad7 0:6741e7724181 143 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
pprasad7 0:6741e7724181 144
pprasad7 0:6741e7724181 145 command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
pprasad7 0:6741e7724181 146 command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
pprasad7 0:6741e7724181 147
pprasad7 0:6741e7724181 148 for (i=0; i<size; i++) command[6+i] = s[i];
pprasad7 0:6741e7724181 149
pprasad7 0:6741e7724181 150 command[6+size] = 0;
pprasad7 0:6741e7724181 151
pprasad7 0:6741e7724181 152 writeCOMMAND(command, 7 + size);
pprasad7 0:6741e7724181 153 }
pprasad7 0:6741e7724181 154
pprasad7 0:6741e7724181 155 //****************************************************************************************************
pprasad7 0:6741e7724181 156 void TFT_4DGL :: graphic_string(char *s, int x, int y, char font, int color, char width, char height) { // draw a text string
pprasad7 0:6741e7724181 157
pprasad7 0:6741e7724181 158 char command[1000]= "";
pprasad7 0:6741e7724181 159 int size = strlen(s);
pprasad7 0:6741e7724181 160 int i = 0;
pprasad7 0:6741e7724181 161
pprasad7 0:6741e7724181 162 command[0] = GRAPHSTRING;
pprasad7 0:6741e7724181 163
pprasad7 0:6741e7724181 164 command[1] = (x >> 8) & 0xFF;
pprasad7 0:6741e7724181 165 command[2] = x & 0xFF;
pprasad7 0:6741e7724181 166
pprasad7 0:6741e7724181 167 command[3] = (y >> 8) & 0xFF;
pprasad7 0:6741e7724181 168 command[4] = y & 0xFF;
pprasad7 0:6741e7724181 169
pprasad7 0:6741e7724181 170 command[5] = font;
pprasad7 0:6741e7724181 171
pprasad7 0:6741e7724181 172 int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
pprasad7 0:6741e7724181 173 int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
pprasad7 0:6741e7724181 174 int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
pprasad7 0:6741e7724181 175
pprasad7 0:6741e7724181 176 command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
pprasad7 0:6741e7724181 177 command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
pprasad7 0:6741e7724181 178
pprasad7 0:6741e7724181 179 command[8] = width;
pprasad7 0:6741e7724181 180
pprasad7 0:6741e7724181 181 command[9] = height;
pprasad7 0:6741e7724181 182
pprasad7 0:6741e7724181 183 for (i=0; i<size; i++) command[10+i] = s[i];
pprasad7 0:6741e7724181 184
pprasad7 0:6741e7724181 185 command[10+size] = 0;
pprasad7 0:6741e7724181 186
pprasad7 0:6741e7724181 187 writeCOMMAND(command, 11 + size);
pprasad7 0:6741e7724181 188 }
pprasad7 0:6741e7724181 189
pprasad7 0:6741e7724181 190 //****************************************************************************************************
pprasad7 0:6741e7724181 191 void TFT_4DGL :: text_button(char *s, char mode, int x, int y, int button_color, char font, int text_color, char width, char height) { // draw a text string
pprasad7 0:6741e7724181 192
pprasad7 0:6741e7724181 193 char command[1000]= "";
pprasad7 0:6741e7724181 194 int size = strlen(s);
pprasad7 0:6741e7724181 195 int i = 0, red5, green6, blue5;
pprasad7 0:6741e7724181 196
pprasad7 0:6741e7724181 197 command[0] = TEXTBUTTON;
pprasad7 0:6741e7724181 198
pprasad7 0:6741e7724181 199 command[1] = mode;
pprasad7 0:6741e7724181 200
pprasad7 0:6741e7724181 201 command[2] = (x >> 8) & 0xFF;
pprasad7 0:6741e7724181 202 command[3] = x & 0xFF;
pprasad7 0:6741e7724181 203
pprasad7 0:6741e7724181 204 command[4] = (y >> 8) & 0xFF;
pprasad7 0:6741e7724181 205 command[5] = y & 0xFF;
pprasad7 0:6741e7724181 206
pprasad7 0:6741e7724181 207 red5 = (button_color >> (16 + 3)) & 0x1F; // get red on 5 bits
pprasad7 0:6741e7724181 208 green6 = (button_color >> (8 + 2)) & 0x3F; // get green on 6 bits
pprasad7 0:6741e7724181 209 blue5 = (button_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
pprasad7 0:6741e7724181 210
pprasad7 0:6741e7724181 211 command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
pprasad7 0:6741e7724181 212 command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
pprasad7 0:6741e7724181 213
pprasad7 0:6741e7724181 214 command[8] = font;
pprasad7 0:6741e7724181 215
pprasad7 0:6741e7724181 216 red5 = (text_color >> (16 + 3)) & 0x1F; // get red on 5 bits
pprasad7 0:6741e7724181 217 green6 = (text_color >> (8 + 2)) & 0x3F; // get green on 6 bits
pprasad7 0:6741e7724181 218 blue5 = (text_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
pprasad7 0:6741e7724181 219
pprasad7 0:6741e7724181 220 command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
pprasad7 0:6741e7724181 221 command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
pprasad7 0:6741e7724181 222
pprasad7 0:6741e7724181 223 command[11] = width;
pprasad7 0:6741e7724181 224
pprasad7 0:6741e7724181 225 command[12] = height;
pprasad7 0:6741e7724181 226
pprasad7 0:6741e7724181 227 for (i=0; i<size; i++) command[13+i] = s[i];
pprasad7 0:6741e7724181 228
pprasad7 0:6741e7724181 229 command[13+size] = 0;
pprasad7 0:6741e7724181 230
pprasad7 0:6741e7724181 231 writeCOMMAND(command, 14 + size);
pprasad7 0:6741e7724181 232 }
pprasad7 0:6741e7724181 233
pprasad7 0:6741e7724181 234 //****************************************************************************************************
pprasad7 0:6741e7724181 235 void TFT_4DGL :: locate(char col, char row) { // place text curssor at col, row
pprasad7 0:6741e7724181 236 current_col = col;
pprasad7 0:6741e7724181 237 current_row = row;
pprasad7 0:6741e7724181 238 }
pprasad7 0:6741e7724181 239
pprasad7 0:6741e7724181 240 //****************************************************************************************************
pprasad7 0:6741e7724181 241 void TFT_4DGL :: color(int color) { // set text color
pprasad7 0:6741e7724181 242 current_color = color;
pprasad7 0:6741e7724181 243 }
pprasad7 0:6741e7724181 244
pprasad7 0:6741e7724181 245 //****************************************************************************************************
pprasad7 0:6741e7724181 246 void TFT_4DGL :: putc(char c) { // place char at current cursor position
pprasad7 0:6741e7724181 247
pprasad7 0:6741e7724181 248 text_char(c, current_col++, current_row, current_color);
pprasad7 0:6741e7724181 249
pprasad7 0:6741e7724181 250 if (current_col == max_col) {
pprasad7 0:6741e7724181 251 current_col = 0;
pprasad7 0:6741e7724181 252 current_row++;
pprasad7 0:6741e7724181 253 }
pprasad7 0:6741e7724181 254 if (current_row == max_row) {
pprasad7 0:6741e7724181 255 current_row = 0;
pprasad7 0:6741e7724181 256 }
pprasad7 0:6741e7724181 257 }
pprasad7 0:6741e7724181 258
pprasad7 0:6741e7724181 259 //****************************************************************************************************
pprasad7 0:6741e7724181 260 void TFT_4DGL :: puts(char *s) { // place string at current cursor position
pprasad7 0:6741e7724181 261
pprasad7 0:6741e7724181 262 text_string(s, current_col, current_row, current_font, current_color);
pprasad7 0:6741e7724181 263
pprasad7 0:6741e7724181 264 current_col += strlen(s);
pprasad7 0:6741e7724181 265
pprasad7 0:6741e7724181 266 if (current_col >= max_col) {
pprasad7 0:6741e7724181 267 current_row += current_col / max_col;
pprasad7 0:6741e7724181 268 current_col %= max_col;
pprasad7 0:6741e7724181 269 }
pprasad7 0:6741e7724181 270 if (current_row >= max_row) {
pprasad7 0:6741e7724181 271 current_row %= max_row;
pprasad7 0:6741e7724181 272 }
pprasad7 0:6741e7724181 273 }