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continued display bugfixes/optimizations

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@22 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
Этот коммит содержится в:
Robert Siemborski 2000-06-17 06:06:35 +00:00
родитель 5387591a57
Коммит a9addc7443

93
winio.c
Просмотреть файл

@ -552,64 +552,57 @@ inline int get_page_end_virtual(int page) {
#ifndef NANO_SMALL
/* Called only from edit_add, and therefore expects a
* converted-to-only-spaces line */
/* begin, end: beginning and end of mark in data
* fileptr: the data
* y: the line on screen */
void add_marked_sameline(int begin, int end, filestruct *fileptr, int y, int virt_cur_x)
void add_marked_sameline(int begin, int end, filestruct *fileptr, int y,
int virt_cur_x, int this_page)
{
int this_page = get_page_from_virtual(virt_cur_x),
this_page_start = get_page_start_virtual(this_page),
int this_page_start = get_page_start_virtual(this_page),
this_page_end = get_page_end_virtual(this_page);
/* 3 start points: 0 -> begin, begin->end, end->strlen(data) */
/* in data : pre sel post */
int virtual_sel_start = begin,
sel_start = 0,
virtual_post_start = end,
post_start = 0;
/* likewise, 3 data lengths */
int pre_data_len = begin,
sel_data_len = end - begin,
post_data_len = 0;
post_data_len = 0; /* Determined from the other two */
/* now fix the start locations & lengths according to the cursor's
* position (ie: our page) */
if(pre_data_len < this_page_start) pre_data_len = 0;
else pre_data_len -= this_page_start;
if(pre_data_len < this_page_start)
pre_data_len = 0;
else
pre_data_len -= this_page_start;
if(virtual_sel_start < this_page_start) {
begin = virtual_sel_start = this_page_start;
}
if(virtual_post_start < this_page_start) {
end = virtual_post_start = this_page_start;
}
if(begin < this_page_start)
begin = this_page_start;
if(end < this_page_start)
end = this_page_start;
/* we don't care about end, because it will just get cropped
* due to length */
if(virtual_sel_start > this_page_end)
virtual_sel_start = this_page_end;
if(virtual_post_start > this_page_end)
virtual_post_start = this_page_end;
if(begin > this_page_end)
begin = this_page_end;
sel_data_len = virtual_post_start - virtual_sel_start;
post_data_len = this_page_end - virtual_post_start;
if(end > this_page_end)
end = this_page_end;
sel_start = virtual_sel_start - this_page_start;
post_start = virtual_post_start - this_page_start;
sel_data_len = end - begin;
post_data_len = this_page_end - end;
mvwaddnstr(edit, y, 0, &fileptr->data[this_page_start], pre_data_len);
wattron(edit, A_REVERSE);
mvwaddnstr(edit, y, sel_start, &fileptr->data[begin], sel_data_len);
mvwaddnstr(edit, y, begin - this_page_start,
&fileptr->data[begin], sel_data_len);
wattroff(edit, A_REVERSE);
mvwaddnstr(edit, y, post_start, &fileptr->data[end], post_data_len);
mvwaddnstr(edit, y, end - this_page_start,
&fileptr->data[end], post_data_len);
}
#endif
/* Called only from update_line. Expects a converted-to-not-have-tabs
* line */
void edit_add(filestruct * fileptr, int yval, int start, int virt_cur_x,
int virt_mark_beginx)
int virt_mark_beginx, int this_page)
{
#ifndef NANO_SMALL
if (ISSET(MARK_ISSET)) {
@ -621,26 +614,24 @@ void edit_add(filestruct * fileptr, int yval, int start, int virt_cur_x,
/* We're on a normal, unselected line */
mvwaddnstr(edit, yval, 0, fileptr->data, COLS);
} else {
/* We're on selected text */
if (fileptr != mark_beginbuf && fileptr != current) {
/* We're on selected text */
wattron(edit, A_REVERSE);
mvwaddnstr(edit, yval, 0, fileptr->data, COLS);
wattroff(edit, A_REVERSE);
}
/* Special case, we're still on the same line we started marking */
else if (fileptr == mark_beginbuf && fileptr == current) {
} else if (fileptr == mark_beginbuf && fileptr == current) {
/* Special case, we're still on the same line we started
* marking */
if (virt_cur_x < virt_mark_beginx)
add_marked_sameline(virt_cur_x, virt_mark_beginx,
fileptr, yval, virt_cur_x);
fileptr, yval, virt_cur_x, this_page);
else
add_marked_sameline(virt_mark_beginx, virt_cur_x,
fileptr, yval, virt_cur_x);
fileptr, yval, virt_cur_x, this_page);
} else if (fileptr == mark_beginbuf) {
/* we're updating the line that was first marked */
int target;
/* we're updating the line that was first marked */
if (mark_beginbuf->lineno > current->lineno)
wattron(edit, A_REVERSE);
@ -666,8 +657,7 @@ void edit_add(filestruct * fileptr, int yval, int start, int virt_cur_x,
} else if (fileptr == current) {
/* we're on the cursors line, but it's not the first
* one we marked... */
int this_page = get_page_from_virtual(virt_cur_x),
this_page_start = get_page_start_virtual(this_page),
int this_page_start = get_page_start_virtual(this_page),
this_page_end = get_page_end_virtual(this_page);
if (mark_beginbuf->lineno < current->lineno)
@ -685,11 +675,11 @@ void edit_add(filestruct * fileptr, int yval, int start, int virt_cur_x,
else
wattroff(edit, A_REVERSE);
if (virt_cur_x > COLS - 2) {
if (virt_cur_x > COLS - 2)
mvwaddnstr(edit, yval, virt_cur_x - this_page_start,
&fileptr->data[virt_cur_x],
this_page_end - virt_cur_x);
} else
else
mvwaddnstr(edit, yval, virt_cur_x,
&fileptr->data[virt_cur_x],
COLS - virt_cur_x);
@ -701,7 +691,8 @@ void edit_add(filestruct * fileptr, int yval, int start, int virt_cur_x,
} else
#endif
mvwaddnstr(edit, yval, 0, &fileptr->data[start], COLS - start);
mvwaddnstr(edit, yval, 0, &fileptr->data[start],
get_page_end_virtual(this_page) - start);
}
/*
@ -716,7 +707,7 @@ void update_line(filestruct * fileptr, int index)
int line = 0, col = 0;
int virt_cur_x = current_x, virt_mark_beginx = mark_beginx;
char *realdata, *tmp;
int i,pos,len;
int i,pos,len,page;
/* First, blank out the line (at a minimum) */
for (filetmp = edittop; filetmp != fileptr && filetmp != editbot;
@ -753,16 +744,20 @@ void update_line(filestruct * fileptr, int index)
/* Now, Paint the line */
if (current == fileptr && index > COLS - 2) {
int page = get_page_from_virtual(index);
/* This handles when the current line is beyond COLS */
/* It requires figureing out what page we're at */
page = get_page_from_virtual(index);
col = get_page_start_virtual(page);
edit_add(filetmp, line, col, virt_cur_x, virt_mark_beginx);
edit_add(filetmp, line, col, virt_cur_x, virt_mark_beginx, page);
mvwaddch(edit, line, 0, '$');
if (strlenpt(fileptr->data) > get_page_end_virtual(page))
mvwaddch(edit, line, COLS - 1, '$');
} else {
edit_add(filetmp, line, 0, virt_cur_x, virt_mark_beginx);
/* It's not the current line means that it's at x=0 and page=1 */
/* If it is the current line, then we're in the same boat */
edit_add(filetmp, line, 0, virt_cur_x, virt_mark_beginx, 1);
if (strlenpt(&filetmp->data[col]) > COLS)
mvwaddch(edit, line, COLS - 1, '$');