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display: make PageUp/PageDown use the correct beginning of the viewport 

When typing PageUp or PageDOwn in non-smooth-scrolling mode, the cursor
should be placed at the start of the top line of the edit window.  This
means that, when the line at edittop is partially scrolled offscreen,
the cursor should be placed at openfile->firstcolumn, not at zero.

This fixes https://savannah.gnu.org/bugs/?50645.
Reported-by: David Lawrence Ramsey <pooka109@gmail.com>
master
David Lawrence Ramsey 2017-03-26 18:50:55 -05:00 committed by Benno Schulenberg
parent 6b1ad96f34
commit 384332d08c
1 changed files with 4 additions and 2 deletions
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6
src/move.c
View File

@ -60,7 +60,8 @@ void do_page_up(void)
* 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;
openfile->placewewant = target_column = openfile->firstcolumn;
openfile->current_y = 0;
}
mustmove = (editwinrows < 3) ? 1 : editwinrows - 2;
@ -99,7 +100,8 @@ void do_page_down(void)
* 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;
openfile->placewewant = target_column = openfile->firstcolumn;
openfile->current_y = 0;
}
mustmove = (editwinrows < 3) ? 1 : editwinrows - 2;