static int statblank = 0; /* Number of keystrokes left after
we call statubar() before we
actually blank the statusbar */
+
+/* Local Function Prototypes for only winio.c */
+inline int get_page_from_virtual(int virtual);
+inline int get_page_start_virtual(int page);
+inline int get_page_end_virtual(int page);
+
/* Window I/O */
int do_first_line(void)
}
-/* Return what current_x should be, given xplustabs() for the line.
- Opposite of xplustabs */
-int actual_x(filestruct * fileptr, int xplus)
+/* Return what current_x should be, given xplustabs() for the line,
+ * given a start position in the filestruct's data */
+int actual_x_from_start(filestruct * fileptr, int xplus, int start)
{
- int i, tot = 0;
+ int i, tot = 1;
if (fileptr == NULL || fileptr->data == NULL)
return 0;
- for (i = 1; i + tot <= xplus && fileptr->data[i - 1] != 0; i++)
- if (fileptr->data[i - 1] == NANO_CONTROL_I) {
- if ((i + tot) % 8 == 0)
- tot++;
- else
- tot += 8 - ((i + tot) % 8);
- } else if (fileptr->data[i - 1] & 0x80)
- tot ++; /* Make 8 bit chars only 1 column (again) */
- else if (fileptr->data[i - 1] < 32)
+ for (i = start; tot <= xplus && fileptr->data[i] != 0; i++,tot++)
+ if (fileptr->data[i] == NANO_CONTROL_I) {
+ if (tot % 8 == 0) tot++;
+ else tot += 8 - (tot % 8);
+ } else if (fileptr->data[i] & 0x80)
+ tot++; /* Make 8 bit chars only 1 column (again) */
+ else if (fileptr->data[i] < 32)
tot += 2;
- if (fileptr->data[i - 1] != 0)
- i--; /* Im sure there's a good reason why this is needed for
- it to work, I just cant figure out why =-) */
-
#ifdef DEBUG
fprintf(stderr, _("actual_x for xplus=%d returned %d\n"), xplus, i);
#endif
- return i;
+ return i - start;
+}
+
+/* Opposite of xplustabs */
+inline int actual_x(filestruct * fileptr, int xplus)
+{
+ return actual_x_from_start(fileptr, xplus, 0);
}
/* a strlen with tabs factored in, similar to xplustabs() */
x = xplustabs();
if (x <= COLS - 2)
- wmove(edit, current_y, x % (COLS - 1));
+ wmove(edit, current_y, x);
else
- wmove(edit, current_y, x % (COLS - 7) + 1);
+ wmove(edit, current_y, x -
+ get_page_start_virtual(get_page_from_virtual(xplustabs())));
}
}
}
-#ifndef NANO_SMALL
-void add_marked_sameline(int begin, int end, filestruct * fileptr, int y)
-{
- int col, actual_col = 0, begin_mapped = 0, end_mapped = 0;
+inline int get_page_from_virtual(int virtual) {
+ int page = 2;
- if (current_x > COLS - 2) {
- col = (COLS - 7) * (xplustabs() / (COLS - 7)) - 1;
- actual_col = actual_x(fileptr, col);
- begin_mapped = begin % (COLS - 7) + 1;
- end_mapped = end % (COLS - 7) + 1;
- } else {
- actual_col = 0;
- begin_mapped = begin;
- end_mapped = end;
+ if(virtual <= COLS - 2) return 1;
+ virtual -= (COLS - 2);
+
+ while (virtual > COLS - 2 - 7) {
+ virtual -= (COLS - 2 - 7);
+ page++;
}
- if (end > (COLS - 2) && ((begin / (COLS - 7)) != (end / (COLS - 7)))) {
- if (current_x == begin) {
- mvwaddnstr(edit, y, 0, &fileptr->data[actual_col],
- begin_mapped);
- wattron(edit, A_REVERSE);
- waddnstr(edit, &fileptr->data[begin], COLS - begin_mapped);
- wattroff(edit, A_REVERSE);
- } else {
- wattron(edit, A_REVERSE);
- mvwaddnstr(edit, y, 0, &fileptr->data[actual_col], end_mapped);
- wattroff(edit, A_REVERSE);
- waddnstr(edit, &fileptr->data[end], COLS - end_mapped);
- }
- } else {
- mvwaddnstr(edit, y, 0, &fileptr->data[actual_col], begin_mapped);
- wattron(edit, A_REVERSE);
- waddnstr(edit, &fileptr->data[begin], end_mapped - begin_mapped);
- wattroff(edit, A_REVERSE);
- waddnstr(edit, &fileptr->data[end],
- COLS - (end_mapped - begin_mapped));
+ return page;
+}
+
+inline int get_page_start_virtual(int page) {
+ int virtual;
+ virtual = --page * (COLS - 7);
+ if(page) virtual -= 2 * page - 1;
+ return virtual;
+}
+
+inline int get_page_end_virtual(int page) {
+ return get_page_start_virtual(page) + COLS - 1;
+}
+
+#ifndef NANO_SMALL
+/* 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)
+{
+ /* where we are on the line */
+ int virtual_col = xplustabs();
+
+ /* actual_col is beginning of the line in the data */
+ int this_page = get_page_from_virtual(virtual_col),
+ this_page_start = get_page_start_virtual(this_page),
+ this_page_end = get_page_end_virtual(this_page),
+ actual_col = actual_x(fileptr, this_page_start);
+
+ /* 3 start points: 0 -> begin, begin->end, end->strlen(data) */
+ /* in data : pre sel post */
+ int virtual_sel_start = xpt(fileptr, begin),
+ sel_start = 0,
+ virtual_post_start = xpt(fileptr, end),
+ post_start = 0;
+
+ /* likewise, 3 data lengths */
+ int pre_data_len = begin,
+ sel_data_len = end - begin,
+ post_data_len = 0;
+
+ /* now fix the start locations & lengths according to the cursor's
+ * position (ie: our page) */
+ if(xpt(fileptr,pre_data_len) < this_page_start) pre_data_len = 0;
+ else pre_data_len -= actual_col;
+
+ if(virtual_sel_start < this_page_start) {
+ begin = actual_col;
+ virtual_sel_start = this_page_start;
+ }
+ if(virtual_post_start < this_page_start) {
+ end = actual_col;
+ virtual_post_start = 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;
+
+ sel_data_len = actual_x(fileptr, virtual_post_start) -
+ actual_x(fileptr, virtual_sel_start);
+
+ post_data_len = actual_x(fileptr, this_page_end) -
+ actual_x(fileptr, virtual_post_start);
+
+ sel_start = virtual_sel_start - this_page_start;
+ post_start = virtual_post_start - this_page_start;
+
+ mvwaddnstr(edit, y, 0, &fileptr->data[actual_col], pre_data_len);
+ wattron(edit, A_REVERSE);
+ mvwaddnstr(edit, y, sel_start, &fileptr->data[begin], sel_data_len);
+ wattroff(edit, A_REVERSE);
+ mvwaddnstr(edit, y, post_start, &fileptr->data[end], post_data_len);
}
#endif
int col;
if (ISSET(MARK_ISSET)) {
-
- /* Our horribly ugly marker code, which needs to be rewritten too :P */
+ /* Our horribly ugly marker code */
if ((fileptr->lineno > mark_beginbuf->lineno
&& fileptr->lineno > current->lineno)
|| (fileptr->lineno < mark_beginbuf->lineno
&& fileptr->lineno < current->lineno)) {
/* We're on a normal, unselected line */
- mvwaddnstr(edit, yval, 0, fileptr->data, COLS);
-
- if (strlenpt(fileptr->data) > COLS)
- mvwaddch(edit, yval, COLS - 1, '$');
+ mvwaddnstr(edit, yval, 0, fileptr->data,
+ actual_x(fileptr, COLS));
} else {
-
/* We're on selected text */
if (fileptr != mark_beginbuf && fileptr != current) {
wattron(edit, A_REVERSE);
- mvwaddnstr(edit, yval, 0, fileptr->data, COLS);
- if (strlenpt(fileptr->data) > COLS)
- mvwaddch(edit, yval, COLS - 1, '$');
-
+ mvwaddnstr(edit, yval, 0, fileptr->data, actual_x(fileptr,COLS));
wattroff(edit, A_REVERSE);
}
/* Special case, we're still on the same line we started marking */
else if (fileptr == mark_beginbuf && fileptr == current) {
- if (current_x < mark_beginx) {
- add_marked_sameline(current_x, mark_beginx, fileptr,
- yval);
- } else {
- add_marked_sameline(mark_beginx, current_x, fileptr,
- yval);
- }
+ if (current_x < mark_beginx)
+ add_marked_sameline(current_x, mark_beginx, fileptr, yval);
+ else
+ add_marked_sameline(mark_beginx, current_x, fileptr, yval);
} else if (fileptr == mark_beginbuf) {
+ int target;
+
+ /* we're at the line that was first marked */
if (mark_beginbuf->lineno > current->lineno)
wattron(edit, A_REVERSE);
- mvwaddnstr(edit, yval, 0, fileptr->data, mark_beginx);
+ target = (xpt(fileptr,mark_beginx) < COLS - 1) ? mark_beginx : COLS - 1;
+
+ mvwaddnstr(edit, yval, 0, fileptr->data,
+ actual_x(fileptr, target));
if (mark_beginbuf->lineno < current->lineno)
wattron(edit, A_REVERSE);
else
wattroff(edit, A_REVERSE);
- waddnstr(edit, &fileptr->data[mark_beginx],
- COLS - xpt(fileptr, mark_beginx));
+ target = (COLS - 1) - xpt(fileptr,mark_beginx);
+ if(target < 0) target = 0;
- if (strlenpt(fileptr->data) > COLS)
- mvwaddch(edit, yval, COLS - 1, '$');
+ mvwaddnstr(edit, yval, xpt(fileptr,mark_beginx),
+ &fileptr->data[mark_beginx],
+ actual_x_from_start(fileptr, target, mark_beginx));
if (mark_beginbuf->lineno < current->lineno)
wattroff(edit, A_REVERSE);
} else if (fileptr == current) {
+ /* we're on the cursors line, but it's not the first
+ * one we marked... */
+ int this_page = get_page_from_virtual(xplustabs()),
+ this_page_start = get_page_start_virtual(this_page),
+ this_page_end = get_page_end_virtual(this_page);
+
if (mark_beginbuf->lineno < current->lineno)
wattron(edit, A_REVERSE);
- /* Thank GOD for waddnstr, this can now be much cleaner */
if (xplustabs() > COLS - 2) {
- col = (COLS - 7) * (xplustabs() / (COLS - 7));
- mvwaddnstr(edit, yval, 1,
- &fileptr->data[actual_x(current, col)],
- current_x % (COLS - 7) + 1);
+ col = actual_x(current, this_page_start);
+ mvwaddnstr(edit, yval, 0, &fileptr->data[col],
+ current_x - col);
} else
mvwaddnstr(edit, yval, 0, fileptr->data, current_x);
else
wattroff(edit, A_REVERSE);
-
if (xplustabs() > COLS - 2) {
- mvwaddnstr(edit, yval,
- xpt(current,
- (current_x % (COLS - 7) + 1)),
+ mvwaddnstr(edit, yval, xplustabs() - this_page_start,
&fileptr->data[current_x],
- COLS - current_x);
+ actual_x(current,this_page_end) - current_x);
} else
mvwaddnstr(edit, yval, xplustabs(),
&fileptr->data[current_x],
- COLS - current_x);
-
- if (strlenpt(fileptr->data) > COLS)
- mvwaddch(edit, yval, COLS - 1, '$');
+ actual_x_from_start(fileptr,
+ COLS - xpt(fileptr,current_x), current_x));
if (mark_beginbuf->lineno > current->lineno)
wattroff(edit, A_REVERSE);
} else
#endif
- mvwaddnstr(edit, yval, xval, &fileptr->data[start], COLS - xval);
+ mvwaddnstr(edit, yval, xval, &fileptr->data[start],
+ actual_x_from_start(fileptr,COLS - xval,start));
}
* index gives is a place in the string to update starting from.
* Likely args are current_x or 0.
*/
+
void update_line(filestruct * fileptr, int index)
{
filestruct *filetmp;
mvwaddstr(edit, line, 0, hblank);
if (current == fileptr && (x = xpt(current, index)) > COLS - 2) {
-
- col = (COLS - 7) * (x / (COLS - 7));
+ int page = get_page_from_virtual(x);
+ col = get_page_start_virtual(page);
actual_col = actual_x(filetmp, col);
- edit_add(filetmp, line, 1, actual_col);
+ edit_add(filetmp, line, 0, actual_col);
mvwaddch(edit, line, 0, '$');
- } else
+ if (strlenpt(fileptr->data) > get_page_end_virtual(page))
+ mvwaddch(edit, line, COLS - 1, '$');
+ } else {
edit_add(filetmp, line, 0, 0);
- if (strlenpt(&filetmp->data[actual_col]) > COLS)
- mvwaddch(edit, line, COLS - 1, '$');
-
+ if (strlenpt(&filetmp->data[actual_col]) > COLS)
+ mvwaddch(edit, line, COLS - 1, '$');
+ }
}
void center_cursor(void)
projects / nano.git / commitdiff