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

subwindow.cpp@0:ae5037e3d6e0, 2010-11-15 (annotated)

Committer:
hlipka
Date:
Mon Nov 15 22:37:30 2010 +0000
Revision:
0:ae5037e3d6e0
Child:
1:65f72ed914fa
add support for KS0108-based graphical displays

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 "subwindow.h"
hlipka 0:ae5037e3d6e0 25
hlipka 0:ae5037e3d6e0 26 #include "string.h"
hlipka 0:ae5037e3d6e0 27
hlipka 0:ae5037e3d6e0 28 SubWindow::SubWindow(Window* lcd, unsigned int offsetX, unsigned int offsetY, unsigned int width, unsigned int height) {
hlipka 0:ae5037e3d6e0 29 _lcd=lcd;
hlipka 0:ae5037e3d6e0 30 _offsetX=offsetX;
hlipka 0:ae5037e3d6e0 31 _offsetY=offsetY;
hlipka 0:ae5037e3d6e0 32 _width=width;
hlipka 0:ae5037e3d6e0 33 _height=height;
hlipka 0:ae5037e3d6e0 34
hlipka 0:ae5037e3d6e0 35 }
hlipka 0:ae5037e3d6e0 36
hlipka 0:ae5037e3d6e0 37 void SubWindow::writeText(unsigned int line, unsigned int pos, char* text) {
hlipka 0:ae5037e3d6e0 38 if (line>_height)
hlipka 0:ae5037e3d6e0 39 return;
hlipka 0:ae5037e3d6e0 40
hlipka 0:ae5037e3d6e0 41 char* text2=new char[_width-pos+1];
hlipka 0:ae5037e3d6e0 42 int i=0;
hlipka 0:ae5037e3d6e0 43 while (i<_width-pos+1) {
hlipka 0:ae5037e3d6e0 44 text2[i]=text[i];
hlipka 0:ae5037e3d6e0 45 if (text[i]=='\0')
hlipka 0:ae5037e3d6e0 46 break;
hlipka 0:ae5037e3d6e0 47 i++;
hlipka 0:ae5037e3d6e0 48 }
hlipka 0:ae5037e3d6e0 49 text2[_width-pos]='\0';
hlipka 0:ae5037e3d6e0 50
hlipka 0:ae5037e3d6e0 51 _lcd->writeText(line+_offsetY, pos+_offsetX, text2);
hlipka 0:ae5037e3d6e0 52 delete [] text2;
hlipka 0:ae5037e3d6e0 53 }
hlipka 0:ae5037e3d6e0 54
hlipka 0:ae5037e3d6e0 55 void SubWindow::clear() {
hlipka 0:ae5037e3d6e0 56 char* spaces=new char[_width+1];
hlipka 0:ae5037e3d6e0 57 memset(spaces,32,_width);
hlipka 0:ae5037e3d6e0 58 spaces[_width]=0;
hlipka 0:ae5037e3d6e0 59 for (int i=0;i<_height;i++) {
hlipka 0:ae5037e3d6e0 60 _lcd->writeText(i+_offsetY,_offsetX,spaces);
hlipka 0:ae5037e3d6e0 61 }
hlipka 0:ae5037e3d6e0 62 }