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BIG5 fixes by vanilla@FreeBSD.org(?)

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git-svn-id: http://svn.irssi.org/repos/irssi/trunk@3134 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen 2003-10-19 19:09:51 +00:00 • committed by cras
commit 7eb2fc70e3
6 changed files with 94 additions and 11 deletions
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59
src/fe-text/gui-entry.c
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@ -68,6 +68,27 @@ void gui_entry_destroy(GUI_ENTRY_REC *entry)
g_free(entry);
}
/* Fixes the cursor position if it at big5_lo .
Direct: -1 , left shift 1 byte.
Direct: 0, +1 , right shift 1 byte.
*/
static int _fix_big5_pos(unichar *p, int pos, int direct)
{
int newpos;
for (newpos = 0; newpos < pos && p[newpos] != 0; ) {
if (is_big5(p[newpos], p[newpos+1]))
newpos += 2;
else
newpos++;
}
if (newpos != pos)
pos += direct > 0 ? 1 : -1;
return pos;
}
/* Fixes the cursor position in screen */
static void gui_entry_fix_cursor(GUI_ENTRY_REC *entry)
{
@ -85,6 +106,8 @@ static void gui_entry_fix_cursor(GUI_ENTRY_REC *entry)
entry->scrstart = entry->pos - entry->scrpos;
}
entry->scrstart = _fix_big5_pos(entry->text, entry->scrstart, -1);
if (old_scrstart != entry->scrstart)
entry->redraw_needed_from = 0;
}
@ -341,13 +364,31 @@ char *gui_entry_get_cutbuffer(GUI_ENTRY_REC *entry)
return buf;
}
void gui_entry_erase_to(GUI_ENTRY_REC *entry, int pos, int update_cutbuffer)
{
int newpos, size = 0;
g_return_if_fail(entry != NULL);
for (newpos = gui_entry_get_pos(entry); newpos > pos; size++)
newpos = _fix_big5_pos(entry->text, newpos - 1, -1);
gui_entry_erase(entry, size, update_cutbuffer);
}
void gui_entry_erase(GUI_ENTRY_REC *entry, int size, int update_cutbuffer)
{
int newpos;
g_return_if_fail(entry != NULL);
if (entry->pos < size)
return;
/* recount the erase size with big5 charsets */
for (newpos = entry->pos; newpos > 0 && size > 0; size--)
newpos = _fix_big5_pos(entry->text, newpos-1, -1);
size = entry->pos - newpos;
if (update_cutbuffer) {
/* put erased text to cutbuffer */
if (entry->cutbuffer == NULL || entry->cutbuffer_len < size) {
@ -471,10 +512,24 @@ void gui_entry_set_pos(GUI_ENTRY_REC *entry, int pos)
void gui_entry_move_pos(GUI_ENTRY_REC *entry, int pos)
{
int newpos;
g_return_if_fail(entry != NULL);
if (entry->pos+pos >= 0 && entry->pos+pos <= entry->text_len)
entry->pos += pos;
/* move cursor with big5 charset */
newpos = _fix_big5_pos(entry->text, entry->pos, -1);
if (pos > 0) {
while (pos > 0 && newpos < entry->text_len) {
newpos = _fix_big5_pos(entry->text, newpos+1, 1);
pos--;
}
} else {
while (pos < 0 && newpos > 0) {
newpos = _fix_big5_pos(entry->text, newpos-1, -1);
pos++;
}
}
entry->pos = newpos;
gui_entry_fix_cursor(entry);
gui_entry_draw(entry);