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Highlight only flen sized part while editing in line_edit()

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This commit is contained in:
Andrey A. Chernov 1994-11-19 09:58:34 +00:00
parent d35f2e963a
commit 5fa4b99ccf
1 changed files with 56 additions and 20 deletions
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76
gnu/lib/libdialog/lineedit.c
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@ -28,7 +28,7 @@
*/
int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, chtype attr, int first, unsigned char *result)
{
int i, key, len;
int i, key, len, max_len, fix_len;
chtype old_attr;
static int input_x, scroll;
static unsigned char instr[MAX_LEN+1];
@ -50,18 +50,18 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
}
wmove(dialog, box_y, box_x);
wattrset(dialog, attr);
len = flen >= 0 ? MIN(flen,box_width) : box_width;
for (i = 0; i < len; i++)
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
len = strlen(instr);
len = MIN(len,box_width);
for ( ; i < len; i++)
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wattrset(dialog, attr);
wmove(dialog, box_y, box_x + input_x);
for (;;) {
wattrset(dialog, attr);
wrefresh(dialog);
key = wgetch(dialog);
switch (key) {
@ -83,8 +83,13 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
case KEY_HOME:
input_x = scroll = 0;
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++)
fix_len = flen >= 0 ? MIN(flen,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[i] ? instr[i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[i]);
wmove(dialog, box_y, box_x);
continue;
case KEY_END:
@ -94,8 +99,13 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
input_x = i % box_width;
scroll = i - input_x;
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++)
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wmove(dialog, box_y, input_x + box_x);
continue;
case KEY_LEFT:
@ -104,8 +114,13 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
int oldscroll = scroll;
scroll = scroll < box_width-1 ? 0 : scroll-(box_width-1);
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++)
waddch(dialog, instr[scroll+input_x+i] ? instr[scroll+input_x+i] : ' ');
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
input_x = oldscroll - 1 - scroll;
}
else
@ -122,8 +137,13 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
if (input_x == box_width-1) {
scroll++;
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++)
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wmove(dialog, box_y, box_x + box_width - 1);
}
else {
@ -146,15 +166,21 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
int oldscroll = scroll;
scroll = scroll < box_width-1 ? 0 : scroll-(box_width-1);
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++)
waddch(dialog, instr[scroll+input_x+i] ? instr[scroll+input_x+i] : ' ');
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
input_x = oldscroll - 1 - scroll;
}
else
input_x--;
wmove(dialog, box_y, input_x + box_x);
for (i = input_x; i < box_width; i++)
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = input_x; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wmove(dialog, box_y, input_x + box_x);
}
continue;
@ -175,13 +201,24 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
if (input_x == box_width-1) {
scroll++;
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width-1; i++)
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = 0; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wmove(dialog, box_y, input_x + box_x);
}
else {
wmove(dialog, box_y, input_x + box_x);
for (i = input_x; i < box_width; i++)
fix_len = flen >= 0 ? MIN(flen-scroll,box_width) : box_width;
for (i = input_x; i < fix_len; i++)
waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
wattrset(dialog, old_attr);
max_len = MIN(len-scroll,box_width);
for ( ; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wmove(dialog, box_y, ++input_x + box_x);
}
} else
@ -193,9 +230,8 @@ int line_edit(WINDOW* dialog, int box_y, int box_x, int flen, int box_width, cht
ret:
wattrset(dialog, old_attr);
wmove(dialog, box_y, box_x);
len = strlen(instr);
len = MIN(len,box_width);
for (i = 0; i < len; i++)
max_len = MIN(len-scroll,box_width);
for (i = 0; i < max_len; i++)
waddch(dialog, instr[scroll+i]);
wmove(dialog, box_y, input_x + box_x);
wrefresh(dialog);