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.
Diff: subwindow.cpp
- Revision:
- 0:ae5037e3d6e0
- Child:
- 1:65f72ed914fa
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/subwindow.cpp Mon Nov 15 22:37:30 2010 +0000 @@ -0,0 +1,62 @@ +/* + * mbed LCDWindow library +* Copyright (c) 2010 Hendrik Lipka +* +* Permission is hereby granted, free of charge, to any person obtaining a copy +* of this software and associated documentation files (the "Software"), to deal +* in the Software without restriction, including without limitation the rights +* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +* copies of the Software, and to permit persons to whom the Software is +* furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in +* all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +* THE SOFTWARE. +*/ + +#include "subwindow.h" + +#include "string.h" + +SubWindow::SubWindow(Window* lcd, unsigned int offsetX, unsigned int offsetY, unsigned int width, unsigned int height) { + _lcd=lcd; + _offsetX=offsetX; + _offsetY=offsetY; + _width=width; + _height=height; + +} + +void SubWindow::writeText(unsigned int line, unsigned int pos, char* text) { + if (line>_height) + return; + + char* text2=new char[_width-pos+1]; + int i=0; + while (i<_width-pos+1) { + text2[i]=text[i]; + if (text[i]=='\0') + break; + i++; + } + text2[_width-pos]='\0'; + + _lcd->writeText(line+_offsetY, pos+_offsetX, text2); + delete [] text2; +} + +void SubWindow::clear() { + char* spaces=new char[_width+1]; + memset(spaces,32,_width); + spaces[_width]=0; + for (int i=0;i<_height;i++) { + _lcd->writeText(i+_offsetY,_offsetX,spaces); + } +} \ No newline at end of file