/* Moves the view to the cursor location,
* also used to make sure the view isn't outside the file */
void text_scroll_to_cursor(SpaceText *st, ARegion *ar, const bool center)
{
Text *text;
int i, x, winx = ar->winx;
if (ELEM(NULL, st, st->text, st->text->curl)) return;
text = st->text;
text_update_character_width(st);
i = txt_get_span(text->lines.first, text->sell);
if (st->wordwrap) {
int offl, offc;
wrap_offset(st, ar, text->sell, text->selc, &offl, &offc);
i += offl;
}
if (center) {
if (st->top + st->viewlines <= i || st->top > i) {
st->top = i - st->viewlines / 2;
}
}
else {
if (st->top + st->viewlines <= i) {
st->top = i - (st->viewlines - 1);
}
else if (st->top > i) {
st->top = i;
}
}
if (st->wordwrap) {
st->left = 0;
}
else {
x = st->cwidth * (text_get_char_pos(st, text->sell->line, text->selc) - st->left);
winx -= TXT_OFFSET + (st->showlinenrs ? TEXTXLOC : 0) + TXT_SCROLL_WIDTH;
if (center) {
if (x <= 0 || x > winx) {
st->left += (x - winx / 2) / st->cwidth;
}
}
else {
if (x <= 0) {
st->left += ((x + 1) / st->cwidth) - 1;
}
else if (x > winx) {
st->left += ((x - (winx + 1)) / st->cwidth) + 1;
}
}
}
if (st->top < 0) st->top = 0;
if (st->left < 0) st->left = 0;
st->scroll_accum[0] = 0.0f;
st->scroll_accum[1] = 0.0f;
}
int text_do_suggest_select(SpaceText *st, ARegion *ar)
{
SuggItem *item, *first, *last /* , *sel */ /* UNUSED */;
TextLine *tmp;
int l, x, y, w, h, i;
int tgti, *top;
int mval[2] = {0, 0};
if (!st || !st->text) return 0;
if (!texttool_text_is_active(st->text)) return 0;
first = texttool_suggest_first();
last = texttool_suggest_last();
/* sel = texttool_suggest_selected(); */ /* UNUSED */
top = texttool_suggest_top();
if (!last || !first)
return 0;
/* Count the visible lines to the cursor */
for (tmp = st->text->curl, l = -st->top; tmp; tmp = tmp->prev, l++) ;
if (l < 0) return 0;
text_update_character_width(st);
if (st->showlinenrs) {
x = st->cwidth * (st->text->curc - st->left) + TXT_OFFSET + TEXTXLOC - 4;
}
else {
x = st->cwidth * (st->text->curc - st->left) + TXT_OFFSET - 4;
}
y = ar->winy - st->lheight_dpi * l - 2;
w = SUGG_LIST_WIDTH * st->cwidth + U.widget_unit;
h = SUGG_LIST_SIZE * st->lheight_dpi + 0.4f * U.widget_unit;
// XXX getmouseco_areawin(mval);
if (mval[0] < x || x + w < mval[0] || mval[1] < y - h || y < mval[1])
return 0;
/* Work out which of the items is at the top of the visible list */
for (i = 0, item = first; i < *top && item->next; i++, item = item->next) ;
/* Work out the target item index in the visible list */
tgti = (y - mval[1] - 4) / st->lheight_dpi;
if (tgti < 0 || tgti > SUGG_LIST_SIZE)
return 1;
for (i = tgti; i > 0 && item->next; i--, item = item->next) ;
if (item)
texttool_suggest_select(item);
return 1;
}
/* Moves the view to the cursor location,
also used to make sure the view isnt outside the file */
void text_update_cursor_moved(bContext *C)
{
ScrArea *sa= CTX_wm_area(C);
SpaceText *st= CTX_wm_space_text(C);
Text *text;
ARegion *ar;
int i, x, winx= 0;
if(ELEM3(NULL, st, st->text, st->text->curl)) return;
text= st->text;
for(ar=sa->regionbase.first; ar; ar= ar->next)
if(ar->regiontype==RGN_TYPE_WINDOW)
winx= ar->winx;
winx -= TXT_SCROLL_WIDTH;
text_update_character_width(st);
i= txt_get_span(text->lines.first, text->sell);
if(st->wordwrap) {
int offl, offc;
wrap_offset(st, CTX_wm_region(C), text->sell, text->selc, &offl, &offc);
i+= offl;
}
if(st->top+st->viewlines <= i || st->top > i)
st->top= i - st->viewlines/2;
if(st->wordwrap) {
st->left= 0;
}
else {
x= text_draw(st, text->sell->line, st->left, text->selc, 0, 0, 0, NULL);
if(x==0 || x>winx)
st->left= text->curc-0.5*winx/st->cwidth;
}
if(st->top < 0) st->top= 0;
if(st->left <0) st->left= 0;
}
/* Moves the view to the cursor location,
* also used to make sure the view isn't outside the file */
void text_scroll_to_cursor(SpaceText *st, ScrArea *sa)
{
Text *text;
ARegion *ar = NULL;
int i, x, winx = 0;
if (ELEM3(NULL, st, st->text, st->text->curl)) return;
text = st->text;
for (ar = sa->regionbase.first; ar; ar = ar->next)
if (ar->regiontype == RGN_TYPE_WINDOW) {
winx = ar->winx;
break;
}
text_update_character_width(st);
i = txt_get_span(text->lines.first, text->sell);
if (st->wordwrap) {
int offl, offc;
wrap_offset(st, ar, text->sell, text->selc, &offl, &offc);
i += offl;
}
if (st->top + st->viewlines <= i || st->top > i)
st->top = i - st->viewlines / 2;
if (st->wordwrap) {
st->left = 0;
}
else {
x = st->cwidth * (text_get_char_pos(st, text->sell->line, text->selc) - st->left);
winx -= TXT_OFFSET + (st->showlinenrs ? TEXTXLOC : 0) + TXT_SCROLL_WIDTH;
if (x <= 0 || x > winx)
st->left += (x - winx / 2) / st->cwidth;
}
if (st->top < 0) st->top = 0;
if (st->left < 0) st->left = 0;
}
static void text_update_drawcache(SpaceText *st, ARegion *ar)
{
DrawCache *drawcache;
int full_update = 0, nlines = 0;
Text *txt = st->text;
if (!st->drawcache) text_drawcache_init(st);
text_update_character_width(st);
drawcache = (DrawCache *)st->drawcache;
nlines = drawcache->nlines;
/* check if full cache update is needed */
full_update |= drawcache->winx != ar->winx; /* area was resized */
full_update |= drawcache->wordwrap != st->wordwrap; /* word-wrapping option was toggled */
full_update |= drawcache->showlinenrs != st->showlinenrs; /* word-wrapping option was toggled */
full_update |= drawcache->tabnumber != st->tabnumber; /* word-wrapping option was toggled */
full_update |= drawcache->lheight != st->lheight_dpi; /* word-wrapping option was toggled */
full_update |= drawcache->cwidth != st->cwidth; /* word-wrapping option was toggled */
full_update |= strncmp(drawcache->text_id, txt->id.name, MAX_ID_NAME); /* text datablock was changed */
if (st->wordwrap) {
/* update line heights */
if (full_update || !drawcache->line_height) {
drawcache->valid_head = 0;
drawcache->valid_tail = 0;
drawcache->update_flag = 1;
}
if (drawcache->update_flag) {
TextLine *line = st->text->lines.first;
int lineno = 0, size, lines_count;
int *fp = drawcache->line_height, *new_tail, *old_tail;
nlines = BLI_countlist(&txt->lines);
size = sizeof(int) * nlines;
if (fp) fp = MEM_reallocN(fp, size);
else fp = MEM_callocN(size, "text drawcache line_height");
drawcache->valid_tail = drawcache->valid_head = 0;
old_tail = fp + drawcache->nlines - drawcache->valid_tail;
new_tail = fp + nlines - drawcache->valid_tail;
memmove(new_tail, old_tail, drawcache->valid_tail);
drawcache->total_lines = 0;
if (st->showlinenrs)
st->linenrs_tot = (int)floor(log10((float)nlines)) + 1;
while (line) {
if (drawcache->valid_head) { /* we're inside valid head lines */
lines_count = fp[lineno];
drawcache->valid_head--;
}
else if (lineno > new_tail - fp) { /* we-re inside valid tail lines */
lines_count = fp[lineno];
}
else {
lines_count = text_get_visible_lines(st, ar, line->line);
}
fp[lineno] = lines_count;
line = line->next;
lineno++;
drawcache->total_lines += lines_count;
}
drawcache->line_height = fp;
}
}
else {
if (drawcache->line_height) {
MEM_freeN(drawcache->line_height);
drawcache->line_height = NULL;
}
if (full_update || drawcache->update_flag) {
nlines = BLI_countlist(&txt->lines);
if (st->showlinenrs)
st->linenrs_tot = (int)floor(log10((float)nlines)) + 1;
}
drawcache->total_lines = nlines;
}
drawcache->nlines = nlines;
/* store settings */
drawcache->winx = ar->winx;
drawcache->wordwrap = st->wordwrap;
drawcache->lheight = st->lheight_dpi;
drawcache->cwidth = st->cwidth;
drawcache->showlinenrs = st->showlinenrs;
drawcache->tabnumber = st->tabnumber;
strncpy(drawcache->text_id, txt->id.name, MAX_ID_NAME);
/* clear update flag */
drawcache->update_flag = 0;
drawcache->valid_head = 0;
drawcache->valid_tail = 0;
}
