Diff: TextDisplay.cpp

Revision:

19:3f82c1161fd2

Parent:

0:de9d1462a835

Child:

29:422616aa04bd

--- a/TextDisplay.cpp	Tue Oct 22 20:17:29 2013 +0000
+++ b/TextDisplay.cpp	Sun Jan 12 17:40:32 2014 +0000
@@ -2,10 +2,11 @@
  * Copyright (c) 2007-2009 sford
  * Released under the MIT License: http://mbed.org/license/mit
  */
- 
+
 #include "TextDisplay.h"
 
-TextDisplay::TextDisplay(const char *name) : Stream(name){
+TextDisplay::TextDisplay(const char *name) : Stream(name)
+{
     _row = 0;
     _column = 0;
     if (name == NULL) {
@@ -15,8 +16,9 @@
         sprintf(_path, "/%s", name);
     }
 }
-    
-int TextDisplay::_putc(int value) {
+
+int TextDisplay::_putc(int value)
+{
     if(value == '\n') {
         _column = 0;
         _row++;
@@ -38,33 +40,43 @@
 }
 
 // crude cls implementation, should generally be overwritten in derived class
-void TextDisplay::cls() {
+RetCode_t TextDisplay::cls()
+{
     locate(0, 0);
     for(int i=0; i<columns()*rows(); i++) {
         putc(' ');
     }
+    return noerror;
 }
 
-void TextDisplay::locate(int column, int row) {
+RetCode_t TextDisplay::locate(unsigned int column, unsigned int row)
+{
     _column = column;
     _row = row;
+    return noerror;
 }
 
-int TextDisplay::_getc() {
+int TextDisplay::_getc()
+{
     return -1;
 }
-        
-void TextDisplay::foreground(uint16_t colour) {
+
+RetCode_t TextDisplay::foreground(uint16_t colour)
+{
     _foreground = colour;
+    return noerror;
 }
 
-void TextDisplay::background(uint16_t colour) {
+RetCode_t TextDisplay::background(uint16_t colour)
+{
     _background = colour;
+    return noerror;
 }
 
-bool TextDisplay::claim (FILE *stream) {
+bool TextDisplay::claim (FILE *stream)
+{
     if ( _path == NULL) {
-        fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
+        fprintf(stderr, "claim requires a name to be given in the instantiator of the TextDisplay instance!\r\n");
         return false;
     }
     if (freopen(_path, "w", stream) == NULL) {
@@ -74,4 +86,4 @@
     // make sure we use line buffering
     setvbuf(stdout, NULL, _IOLBF, columns());
     return true;
-} 
+}