Hendrik Lipka / LcdWindow

Display text on LCD displays (even on multiple ones). Allow to create windows (frames) on display, and to combine them (split, add, duplicate, scroll). See http://mbed.org/users/hlipka/notebook/lcdwindow/ for more information.

Dependents:   Mbell

terminal.cpp@1:65f72ed914fa, 2010-11-16 (annotated)

Committer:
hlipka
Date:
Tue Nov 16 20:49:18 2010 +0000
Revision:
1:65f72ed914fa
Parent:
0:ae5037e3d6e0
Child:
2:5ac5bab7daaf
minor revision: made use of \const\ in the API

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hlipka 0:ae5037e3d6e0 1 /*
hlipka 0:ae5037e3d6e0 2 * mbed LCDWindow library
hlipka 0:ae5037e3d6e0 3 * Copyright (c) 2010 Hendrik Lipka
hlipka 0:ae5037e3d6e0 4 *
hlipka 0:ae5037e3d6e0 5 * Permission is hereby granted, free of charge, to any person obtaining a copy
hlipka 0:ae5037e3d6e0 6 * of this software and associated documentation files (the "Software"), to deal
hlipka 0:ae5037e3d6e0 7 * in the Software without restriction, including without limitation the rights
hlipka 0:ae5037e3d6e0 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hlipka 0:ae5037e3d6e0 9 * copies of the Software, and to permit persons to whom the Software is
hlipka 0:ae5037e3d6e0 10 * furnished to do so, subject to the following conditions:
hlipka 0:ae5037e3d6e0 11 *
hlipka 0:ae5037e3d6e0 12 * The above copyright notice and this permission notice shall be included in
hlipka 0:ae5037e3d6e0 13 * all copies or substantial portions of the Software.
hlipka 0:ae5037e3d6e0 14 *
hlipka 0:ae5037e3d6e0 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hlipka 0:ae5037e3d6e0 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hlipka 0:ae5037e3d6e0 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hlipka 0:ae5037e3d6e0 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hlipka 0:ae5037e3d6e0 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hlipka 0:ae5037e3d6e0 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hlipka 0:ae5037e3d6e0 21 * THE SOFTWARE.
hlipka 0:ae5037e3d6e0 22 */
hlipka 0:ae5037e3d6e0 23
hlipka 0:ae5037e3d6e0 24 #include "terminal.h"
hlipka 0:ae5037e3d6e0 25 #include "string.h"
hlipka 0:ae5037e3d6e0 26
hlipka 0:ae5037e3d6e0 27 Terminal::Terminal(Window* window) {
hlipka 0:ae5037e3d6e0 28 _window=window;
hlipka 0:ae5037e3d6e0 29 _height=window->getHeight();
hlipka 0:ae5037e3d6e0 30 _width=window->getWidth();
hlipka 0:ae5037e3d6e0 31 _lines=new char*[_height];
hlipka 0:ae5037e3d6e0 32 for (int i=0;i<_height;i++) {
hlipka 0:ae5037e3d6e0 33 _lines[i]=createLine();
hlipka 0:ae5037e3d6e0 34 }
hlipka 0:ae5037e3d6e0 35 }
hlipka 0:ae5037e3d6e0 36
hlipka 0:ae5037e3d6e0 37 char* Terminal::createLine()
hlipka 0:ae5037e3d6e0 38 {
hlipka 0:ae5037e3d6e0 39 char* text=new char[_width+1];
hlipka 0:ae5037e3d6e0 40 memset(text,32,_width);
hlipka 0:ae5037e3d6e0 41 text[_width]=0;
hlipka 0:ae5037e3d6e0 42 return text;
hlipka 0:ae5037e3d6e0 43 }
hlipka 0:ae5037e3d6e0 44
hlipka 1:65f72ed914fa 45 void Terminal::writeText(const unsigned int line, const unsigned int pos, const char text[]) {
hlipka 0:ae5037e3d6e0 46 _window->writeText(line,pos,text);
hlipka 0:ae5037e3d6e0 47 int min=pos+strlen(text);
hlipka 0:ae5037e3d6e0 48 if (min>_width)
hlipka 0:ae5037e3d6e0 49 min=_width;
hlipka 0:ae5037e3d6e0 50 for (int i=pos;i<min;i++) {
hlipka 0:ae5037e3d6e0 51 _lines[line][i]=text[i-pos]; // copy text into proper line
hlipka 0:ae5037e3d6e0 52 }
hlipka 0:ae5037e3d6e0 53 }
hlipka 0:ae5037e3d6e0 54
hlipka 1:65f72ed914fa 55 void Terminal::addText(const char text[]) {
hlipka 0:ae5037e3d6e0 56 delete [] _lines[0];
hlipka 0:ae5037e3d6e0 57 for (int i=0;i<_height-1;i++) {
hlipka 0:ae5037e3d6e0 58 _lines[i]=_lines[i+1];
hlipka 0:ae5037e3d6e0 59 }
hlipka 0:ae5037e3d6e0 60 _lines[_height-1]=createLine();
hlipka 0:ae5037e3d6e0 61 memset(_lines[_height-1],32,_width);
hlipka 0:ae5037e3d6e0 62 int min=strlen(text);
hlipka 0:ae5037e3d6e0 63 if (min>_width)
hlipka 0:ae5037e3d6e0 64 min=_width;
hlipka 0:ae5037e3d6e0 65 for (int i=0;i<min;i++) {
hlipka 0:ae5037e3d6e0 66 _lines[_height-1][i]=text[i]; // copy text into proper line
hlipka 0:ae5037e3d6e0 67 }
hlipka 0:ae5037e3d6e0 68 clear();
hlipka 0:ae5037e3d6e0 69 for (int i=0;i<_height;i++) {
hlipka 0:ae5037e3d6e0 70 _window->writeText(i,0,_lines[i]);
hlipka 0:ae5037e3d6e0 71 }
hlipka 0:ae5037e3d6e0 72 }
hlipka 0:ae5037e3d6e0 73
hlipka 0:ae5037e3d6e0 74 void Terminal::clear() {
hlipka 0:ae5037e3d6e0 75 _window->clear();
hlipka 0:ae5037e3d6e0 76 }