mirror of git://git.sv.gnu.org/nano.git
scrolling: don't bother to limit the number of lines to step back
The go_back_chunks() function will do this clipping. This fixes https://savannah.gnu.org/bugs/?50866.
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34
src/winio.c
34
src/winio.c
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@ -3093,37 +3093,23 @@ void edit_refresh(void)
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refresh_needed = FALSE;
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}
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/* Move edittop so that current is on the screen. manner says how it
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* should be moved: CENTERING means that current should end up in the
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* middle of the screen, STATIONARY means that it should stay at the
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* same vertical position, and FLOWING means that it should scroll no
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* more than needed to bring current into view. */
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/* Move edittop so that current is on the screen. manner says how:
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* STATIONARY means that the cursor should stay on the same screen row,
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* CENTERING means that current should end up in the middle of the screen,
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* and FLOWING means that it should scroll no more than needed to bring
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* current into view. */
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void adjust_viewport(update_type manner)
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{
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int goal = 0;
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/* If manner is CENTERING, move edittop half the number of window rows
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* back from current. If manner is FLOWING, move edittop back 0 rows
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* or (editwinrows - 1) rows, depending on where current has moved.
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* This puts the cursor on the first or the last row. If manner is
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* STATIONARY, move edittop back current_y rows if current_y is in range
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* of the screen, 0 rows if current_y is below zero, or (editwinrows - 1)
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* rows if current_y is too big. This puts current at the same place on
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* the screen as before, or... at some undefined place. */
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if (manner == CENTERING)
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goal = editwinrows / 2;
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else if (manner == FLOWING) {
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if (!current_is_above_screen())
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goal = editwinrows - 1;
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} else {
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if (manner == STATIONARY)
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goal = openfile->current_y;
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if (goal > editwinrows - 1)
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statusline(ALERT, "Row is out of range -- please report a bug");
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}
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else if (manner == CENTERING)
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goal = editwinrows / 2;
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else if (!current_is_above_screen())
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goal = editwinrows - 1;
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openfile->edittop = openfile->current;
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#ifndef NANO_TINY
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if (ISSET(SOFTWRAP))
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openfile->firstcolumn = (xplustabs() / editwincols) * editwincols;
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