static void view_reset_cache(TEXT_BUFFER_VIEW_REC *view)
{
GSList *tmp;
/* destroy line caches - note that you can't do simultaneously
unrefs + cache_get()s or it will keep using the old caches */
textbuffer_cache_unref(view->cache);
g_slist_foreach(view->siblings, (GFunc) textbuffer_cache_unref, NULL);
view->cache = textbuffer_cache_get(view->siblings, view->width);
for (tmp = view->siblings; tmp != NULL; tmp = tmp->next) {
TEXT_BUFFER_VIEW_REC *rec = tmp->data;
rec->cache = textbuffer_cache_get(rec->siblings, rec->width);
}
}
/* Create new view. */
TEXT_BUFFER_VIEW_REC *textbuffer_view_create(TEXT_BUFFER_REC *buffer,
int width, int height,
int scroll, int utf8)
{
TEXT_BUFFER_VIEW_REC *view;
g_return_val_if_fail(buffer != NULL, NULL);
g_return_val_if_fail(width > 0, NULL);
view = g_new0(TEXT_BUFFER_VIEW_REC, 1);
view->buffer = buffer;
view->siblings = textbuffer_get_views(buffer);
view->width = width;
view->height = height;
view->scroll = scroll;
view->utf8 = utf8;
view->cache = textbuffer_cache_get(view->siblings, width);
textbuffer_view_init_bottom(view);
view->startline = view->bottom_startline;
view->subline = view->bottom_subline;
view->bottom = TRUE;
textbuffer_view_init_ypos(view);
view->bookmarks = g_hash_table_new((GHashFunc) g_str_hash,
(GCompareFunc) g_str_equal);
views = g_slist_append(views, view);
return view;
}
static void view_unregister_indent_func(TEXT_BUFFER_VIEW_REC *view,
INDENT_FUNC indent_func)
{
if (view->default_indent_func == indent_func)
view->default_indent_func = NULL;
/* recreate cache so it won't contain references
to the indent function */
view_reset_cache(view);
view->cache = textbuffer_cache_get(view->siblings, view->width);
}
static void view_unregister_indent_func(TEXT_BUFFER_VIEW_REC *view,
INDENT_FUNC indent_func)
{
INDENT_FUNC func;
LINE_REC *line;
const unsigned char *text, *tmp;
if (view->default_indent_func == indent_func)
view->default_indent_func = NULL;
/* recreate cache so it won't contain references
to the indent function */
view_reset_cache(view);
view->cache = textbuffer_cache_get(view->siblings, view->width);
/* remove all references to the indent function from buffer */
line = view->buffer->first_line;
while (line != NULL) {
text = line->text;
for (text = line->text;; text++) {
if (*text != '\0')
continue;
text++;
if (*text == LINE_CMD_EOL)
break;
if (*text == LINE_CMD_INDENT_FUNC) {
text++;
memcpy(&func, text, sizeof(INDENT_FUNC));
if (func == indent_func)
memset(&func, 0, sizeof(INDENT_FUNC));
text += sizeof(INDENT_FUNC);
} else if (*text == LINE_CMD_CONTINUE) {
memcpy(&tmp, text+1, sizeof(char *));
text = tmp-1;
}
}
line = line->next;
}
}
/* Resize the view. */
void textbuffer_view_resize(TEXT_BUFFER_VIEW_REC *view, int width, int height)
{
int linecount;
g_return_if_fail(view != NULL);
g_return_if_fail(width > 0);
if (view->width != width) {
/* line cache needs to be recreated */
textbuffer_cache_unref(view->cache);
view->cache = textbuffer_cache_get(view->siblings, width);
}
view->width = width > 10 ? width : 10;
view->height = height > 1 ? height : 1;
if (view->buffer->first_line == NULL) {
view->empty_linecount = height;
return;
}
textbuffer_view_init_bottom(view);
/* check that we didn't scroll lower than bottom startline.. */
if (textbuffer_line_exists_after(view->bottom_startline->next,
view->startline)) {
view->startline = view->bottom_startline;
view->subline = view->bottom_subline;
} else if (view->startline == view->bottom_startline &&
view->subline > view->bottom_subline) {
view->subline = view->bottom_subline;
} else {
/* make sure the subline is still in allowed range */
linecount = view_get_linecount(view, view->startline);
if (view->subline > linecount)
view->subline = linecount;
}
textbuffer_view_init_ypos(view);
if (view->bottom && !view_is_bottom(view)) {
/* we scrolled to far up, need to get down. go right over
the empty lines if there's any */
view->startline = view->bottom_startline;
view->subline = view->bottom_subline;
if (view->empty_linecount > 0) {
view_scroll(view, &view->startline, &view->subline,
-view->empty_linecount, FALSE);
}
textbuffer_view_init_ypos(view);
}
view->bottom = view_is_bottom(view);
if (view->bottom) {
/* check if we left empty space at the bottom.. */
linecount = view_get_linecount_all(view, view->startline) -
view->subline;
if (view->empty_linecount < view->height-linecount)
view->empty_linecount = view->height-linecount;
view->more_text = FALSE;
}
view->dirty = TRUE;
}
