Diff: lib/ui.c

Revision:

0:6c1bc9b3a347

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/ui.c	Mon Apr 19 20:20:10 2010 +0000
@@ -0,0 +1,166 @@
+/*
+    ui.c
+    User interface functions.
+    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 "conio.h"
+#include "ui.h"
+#include "kbd.h"
+
+
+int runmenu(char x, char y, ROMDEF char *menu[], int defaultitem)
+{
+  int keys[3], i,j, itemno;
+  int nitems, width;
+  ROMDEF char *s;
+
+  itemno = defaultitem-1;
+  width = 20;
+
+  width = 10;
+  nitems = 0;
+  while (menu[nitems] != 0) {
+    for (j=0;menu[nitems][j];j++);
+    if (j>width)
+     width = j;
+    nitems++;
+  }
+  width+=2;
+
+  if (itemno < 0 || itemno > nitems)
+    itemno = 0;
+
+  while (1) {
+
+
+  cursoroff();
+  textattr(CYAN<<4 | BLACK);
+  gotoxy(x,y);
+  _putch(ACS_ULCORNER);
+  for (i=0;i<width+2;i++) 
+    _putch(ACS_HLINE);
+  _putch(ACS_URCORNER);
+
+  for (i = 0;i<nitems;i++) {
+      gotoxy(x,y+i+1);
+      _putch(ACS_VLINE);
+      _putch(' ');
+      if (i == itemno)
+        textattr(YELLOW);
+      s = 0;
+      for (j=0;j<width;j++) {
+        if (s && *s)
+          _putch(*s++);
+        else _putch(' ');
+        if (s == 0)
+          s = (ROMDEF char *)menu[i];
+      }
+       textattr(CYAN<<4 | BLACK);
+      _putch(' ');
+      _putch(ACS_VLINE);
+  }
+
+  gotoxy(x,y+nitems+1);
+  _putch(ACS_LLCORNER);
+  for (i=0;i<width+2;i++) 
+    _putch(ACS_HLINE);
+  _putch(ACS_LRCORNER);
+
+  
+  while (!_kbhit()) ;
+  
+   if (_kbhit()) {
+     keys[0] = keys[1];
+     keys[1] = keys[2];
+     keys[2] = _getch();
+     if (keys[0] == 0x1b && keys[1] == 0x5b)
+     {
+        switch (keys[2]) {
+          case 'A': if (itemno>0) itemno--;  else itemno = nitems-1; break;
+          case 'B': itemno++; itemno %= nitems; break;
+        }
+     }
+     else
+         switch(keys[0]) {
+          case KB_ENTER : cursoron(); return itemno+1;
+          case KB_ESC: cursoron(); return 0;
+         } 
+   } 
+  }
+}
+
+
+
+void drawfkeys(ROMDEF char *fkeys[])
+{
+ ROMDEF char *s;
+ int i, j;
+
+ gotoxy(1,25);
+ for (i=0;i<10;i++) {
+   textcolor(WHITE);
+   textbackground(BLACK);
+   if (i!= 0)
+    _putch(' ');
+   if (i== 9) {
+    _putch('1');
+    _putch('0');
+   } else
+   _putch((i%10)+'1');
+   textcolor(BLACK);
+   textbackground(CYAN);
+
+  s = fkeys[i] ? fkeys[i] : 0;
+  for (j=0;j<6;j++) {
+   if (s && *s)
+    _putch(*s++);
+   else _putch(' ');
+  }
+ }
+}
+
+void drawframe(int x, int y, int width, int height, int color)
+{
+  int i,j;
+  
+  textattr(color);
+  gotoxy(x,y);
+  
+  _putch(ACS_ULCORNER);
+  for (i=0;i<width+2;i++) 
+    _putch(ACS_HLINE);
+  _putch(ACS_URCORNER);
+  
+  for (i = 0;i<height;i++) {
+      gotoxy(x,y+i+1);
+      _putch(ACS_VLINE);
+      _putch(' ');
+   
+   for (j=0;j<width;j++) {
+        _putch(' ');
+      }
+          _putch(' ');
+      _putch(ACS_VLINE);
+  }
+ 
+  gotoxy(x,y+height+1);
+  _putch(ACS_LLCORNER);
+  for (i=0;i<width+2;i++) 
+    _putch(ACS_HLINE);
+  _putch(ACS_LRCORNER);
+}
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