/* Move down one page. */
void do_page_down(void)
{
int i;
/* If there's less than a page of text left on the screen, put the
* cursor at the beginning of the last line of the file, and then
* update the edit window. */
if (openfile->current->lineno + editwinrows - 2 >=
openfile->filebot->lineno) {
do_last_line();
return;
}
/* If we're not in smooth scrolling mode, put the cursor at the
* beginning of the top line of the edit window, as Pico does. */
#ifndef NANO_TINY
if (!ISSET(SMOOTH_SCROLL)) {
#endif
openfile->current = openfile->edittop;
openfile->placewewant = 0;
#ifndef NANO_TINY
}
#endif
for (i = editwinrows - 2; i > 0 && openfile->current !=
openfile->filebot; i--)
openfile->current = openfile->current->next;
openfile->current_x = actual_x(openfile->current->data,
openfile->placewewant);
/* Scroll the edit window down a page. */
edit_scroll(DOWN_DIR, editwinrows - 2);
}
/* Move down one page. */
void do_page_down(void)
{
int i, mustmove;
/* If the cursor is less than a page away from the bottom of the file,
* put it at the end of the last line. */
if (openfile->current->lineno + maxrows - 2 >= openfile->filebot->lineno) {
do_last_line();
return;
}
/* If we're not in smooth scrolling mode, put the cursor at the
* beginning of the top line of the edit window, as Pico does. */
if (!ISSET(SMOOTH_SCROLL)) {
openfile->current = openfile->edittop;
openfile->placewewant = openfile->current_y = 0;
}
mustmove = (maxrows < 3) ? 1 : maxrows - 2;
for (i = mustmove; i > 0 && openfile->current != openfile->filebot; i--) {
openfile->current = openfile->current->next;
#ifdef DEBUG
fprintf(stderr, "paging down: moving to line %lu\n", (unsigned long)openfile->current->lineno);
#endif
}
openfile->current_x = actual_x(openfile->current->data,
openfile->placewewant);
/* Scroll the edit window down a page. */
adjust_viewport(STATIONARY);
refresh_needed = TRUE;
}
/* Move down one page. */
void do_page_down(void)
{
int i;
/* If there's less than a page of text left on the screen, put the
* cursor at the beginning of the last line of the file, and then
* update the edit window. */
if (openfile->current->lineno + maxrows - 2 >=
openfile->filebot->lineno) {
do_last_line();
return;
}
/* If we're not in smooth scrolling mode, put the cursor at the
* beginning of the top line of the edit window, as Pico does. */
#ifndef NANO_TINY
if (!ISSET(SMOOTH_SCROLL)) {
#endif
openfile->current = openfile->edittop;
openfile->placewewant = openfile->current_y = 0;
#ifndef NANO_TINY
}
#endif
for (i = maxrows - 2; i > 0 && openfile->current !=
openfile->filebot; i--) {
openfile->current = openfile->current->next;
#ifdef DEBUG
fprintf(stderr, "do_page_down: moving to line %lu\n", (unsigned long) openfile->current->lineno);
#endif
}
openfile->current_x = actual_x(openfile->current->data,
openfile->placewewant);
/* Scroll the edit window down a page. */
edit_update(NONE);
}