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

Revision:
2:5ac5bab7daaf
Parent:
1:65f72ed914fa
Child:
3:e5d5e2fe4bf6
--- a/subwindow.cpp	Tue Nov 16 20:49:18 2010 +0000
+++ b/subwindow.cpp	Sat Nov 27 22:54:13 2010 +0000
@@ -25,38 +25,46 @@
 
 #include "string.h"
 
-SubWindow::SubWindow(Window* lcd, const unsigned int offsetX, const unsigned int offsetY, const unsigned int width, const unsigned int height) {
+SubWindow::SubWindow(Window* lcd, const unsigned int columnOffset, const unsigned int rowOffset, const unsigned int columns, const unsigned int rows) {
     _lcd=lcd;
-    _offsetX=offsetX;
-    _offsetY=offsetY;
-    _width=width;
-    _height=height;
+    _columnOffset=columnOffset;
+    _rowOffset=rowOffset;
+    _columns=columns;
+    _rows=rows;
 
 }
 
-void SubWindow::writeText(const unsigned int line, const unsigned int pos, const char* text) {
-    if (line>_height)
+void SubWindow::character(int column, int row, int c)
+{
+    if (column>_columns || row>_rows)
         return;
 
-    char* text2=new char[_width-pos+1];
+    _lcd->character(column+_columnOffset, row+_rowOffset, c);
+}
+
+void SubWindow::writeText(const unsigned int column, const unsigned int row, const char* text) {
+    if (row>_rows)
+        return;
+
+    char* text2=new char[_columns-column+1];
     int i=0;
-    while (i<_width-pos+1) {
+    while (i<_columns-column+1) {
         text2[i]=text[i];
         if (text[i]=='\0')
             break;
         i++;
     }
-    text2[_width-pos]='\0';
+    text2[_columns-column]='\0';
 
-    _lcd->writeText(line+_offsetY, pos+_offsetX, text2);
+    _lcd->writeText(column+_columnOffset, row+_rowOffset, 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);
+    char* spaces=new char[_columns+1];
+    memset(spaces,32,_columns);
+    spaces[_columns]=0;
+    for (int i=0;i<_rows;i++) {
+        _lcd->writeText(_columnOffset,_rowOffset+i,spaces);
     }
 }
\ No newline at end of file