diff options
| -rw-r--r-- | view.c | 14 |
1 files changed, 12 insertions, 2 deletions
@@ -750,10 +750,15 @@ size_t view_scroll_down(View *view, int lines) { } size_t view_line_up(Cursor *cursor) { + View *view = cursor->view; int lastcol = cursor->lastcol; if (!lastcol) lastcol = cursor->col; - view_cursors_to(cursor, text_line_up(cursor->view->text, cursor->pos)); + size_t pos = text_line_up(cursor->view->text, cursor->pos); + bool offscreen = view->cursor == cursor && pos < view->start; + view_cursors_to(cursor, pos); + if (offscreen) + view_redraw_top(view); if (cursor->line) cursor_set(cursor, cursor->line, lastcol); cursor->lastcol = lastcol; @@ -761,10 +766,15 @@ size_t view_line_up(Cursor *cursor) { } size_t view_line_down(Cursor *cursor) { + View *view = cursor->view; int lastcol = cursor->lastcol; if (!lastcol) lastcol = cursor->col; - view_cursors_to(cursor, text_line_down(cursor->view->text, cursor->pos)); + size_t pos = text_line_down(cursor->view->text, cursor->pos); + bool offscreen = view->cursor == cursor && pos > view->end; + view_cursors_to(cursor, pos); + if (offscreen) + view_redraw_bottom(view); if (cursor->line) cursor_set(cursor, cursor->line, lastcol); cursor->lastcol = lastcol; |