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/* String input
* Copyright (C) 1998 J.A. Bezemer
*
* Licensed under the terms of the GNU General Public License.
* ABSOLUTELY NO WARRANTY.
* See the file `COPYING' in this directory.
*/
#include "stringinput.h"
#include <string.h>
#ifndef OLD_CURSES
#include <ncurses.h>
#else
#include <curses.h>
#endif
void
stringinput_display (stringinput_t * data)
{
int i;
if (data->cursorpos < 0)
data->cursorpos = 0;
if (data->cursorpos > strlen (data->string))
data->cursorpos = strlen (data->string);
if (data->cursorpos < data->firstcharonscreen + 2)
data->firstcharonscreen = data->cursorpos - 2;
if (data->cursorpos >= data->firstcharonscreen + data->w)
data->firstcharonscreen = data->cursorpos - data->w + 1;
if (data->firstcharonscreen < 0)
data->firstcharonscreen = 0;
move (data->y, data->x);
i = data->firstcharonscreen;
while (i < strlen (data->string) && i < data->firstcharonscreen + data->w)
{
addch (data->string[i]);
i++;
}
while (i < data->firstcharonscreen + data->w)
{
addch (' ');
i++;
}
move (data->y, data->x + data->cursorpos - data->firstcharonscreen);
}
void
stringinput_stdkeys (int key, stringinput_t * data)
{
char helpstring[500];
switch (key)
{
case KEY_LEFT:
data->cursorpos--;
break;
case KEY_RIGHT:
data->cursorpos++;
break;
case KEY_HOME:
data->cursorpos = 0;
break;
case KEY_END:
data->cursorpos = strlen (data->string);
break;
case KEY_BACKSPACE:
#ifdef TREAT_DEL_AS_BACKSPACE
case 127:
#endif
if (data->cursorpos > 0)
{
strcpy (helpstring, data->string);
strcpy (helpstring + data->cursorpos - 1,
data->string + data->cursorpos);
strcpy (data->string, helpstring);
data->cursorpos--;
}
break;
#ifndef TREAT_DEL_AS_BACKSPACE
case 127: /* DEL */
if (data->cursorpos < strlen (data->string))
{
strcpy (helpstring, data->string);
strcpy (helpstring + data->cursorpos,
data->string + data->cursorpos + 1);
strcpy (data->string, helpstring);
}
break;
#endif
}
if (key >= 32 && key <= 126) /* insert */
{
strcpy (helpstring, data->string);
strcpy (helpstring + data->cursorpos + 1,
data->string + data->cursorpos);
helpstring[data->cursorpos] = (char) key;
strcpy (data->string, helpstring);
data->cursorpos++;
}
if (data->cursorpos < 0)
data->cursorpos = 0;
if (data->cursorpos > strlen (data->string))
data->cursorpos = strlen (data->string);
}
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