Diff: lib/conio.c

Revision:

0:6c1bc9b3a347

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/conio.c	Mon Apr 19 20:20:10 2010 +0000
@@ -0,0 +1,173 @@
+/*
+    conio.c
+    Standard conio routines.
+    Part of MicroVGA CONIO library / demo project
+    Copyright (c) 2008-9 SECONS s.r.o., http://www.MicroVGA.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "../h/conio.h"
+#include "../h/ui.h"
+#include "../h/kbd.h"
+
+
+
+void clrscr(void)
+{
+  _putch('\033');
+  _putch('[');
+  _putch('2');
+  _putch('J');
+}
+
+void clreol(void)
+{
+  _putch('\033');
+  _putch('[');
+  _putch('K');
+}
+
+
+void cursoron(void)
+{
+  _putch('\033');
+  _putch('[');
+  _putch('2');
+  _putch('5');
+  _putch('h');
+}
+
+void cursoroff(void)
+{
+  _putch('\033');
+  _putch('[');
+  _putch('2');
+  _putch('5');
+  _putch('l');
+}
+
+void textcolor(int color)
+{
+  _putch('\033');
+  _putch('[');
+  if (color & 0x8) 
+      _putch('1');
+  else _putch('2');
+  _putch('m');
+
+  _putch('\033');
+  _putch('[');
+  _putch('3');
+  _putch(((color&0x7)%10)+'0');
+  _putch('m');
+}
+
+void textbackground(int color)
+{
+  _putch('\033');
+  _putch('[');
+  if (color & 0x8) 
+      _putch('5');
+  else _putch('6');
+  _putch('m');
+
+  _putch('\033');
+  _putch('[');
+  _putch('4');
+  _putch((color&0x7)+'0');
+  _putch('m');
+}
+
+void textattr(int attr)
+{
+  textcolor(attr&0xF);
+  textbackground(attr>>4);
+}
+
+void gotoxy(char x, char y)
+{
+  if (x>MAX_X || y>MAX_Y)
+    return;
+  
+  x--;
+  y--;
+
+  _putch(0x1B);
+  _putch('[');
+  _putch((y/10)+'0');
+  _putch((y%10)+'0');
+  _putch(';');
+  _putch((x/10)+'0');
+  _putch((x%10)+'0');
+  _putch('f');
+}
+
+
+void _cputs(ROMDEF char *s)
+{
+   while (*s != 0) 
+    _putch(*s++);
+}
+
+char * _cgets(char *s)
+{
+  char len;
+  int ch;
+  
+  len=0;
+
+  while (s[0]>len)
+  {
+    ch=_getch();
+    
+    if (ch==KB_ENTER)
+      break; //enter hit, end of input
+
+    if (ch==KB_ESC) {
+      s[1]=0;
+      s[2]=0;
+      return &s[2]; 
+    }
+
+    
+    if (ch==KB_BACK)
+    {
+      
+        if (len>0) 
+        {
+            len--;
+            //delete char and go back (if some chars left)
+            _putch(KB_BACK);
+            _putch(' '); 
+            _putch(KB_BACK);
+           
+        }
+         
+         continue;
+    }
+
+    if (ch>0x80 || ch <' ') //skip functions keys
+        continue;
+  
+    _putch((char)0xff&ch); //print back to screen
+    s[len+2]=(char)0xff&ch;
+    len++;
+  }
+  
+  s[1]=len;
+  s[len+2]=0;
+
+  return &s[2]; 
+}
\ No newline at end of file