2004-11-12 Kim F. Storm <storm@cua.dk>
+ * dispextern.h (struct glyph_row): New member extra_line_spacing.
+ (struct it): New member max_extra_line_spacing.
+ (MR_PARTIALLY_VISIBLE, MR_PARTIALLY_VISIBLE_AT_TOP)
+ (MR_PARTIALLY_VISIBLE_AT_BOTTOM): New helper macros.
+ (MATRIX_ROW_PARTIALLY_VISIBLE_P): Fix to return false if invisible
+ part of last line is only extra line spacing (so the text on the
+ line is fully visible). Use helper macros.
+ Add W arg (to use them). All callers changed.
+ (MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P)
+ (MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P): Use helper macros.
+
+ * window.c (window_scroll_pixel_based, Frecenter): Use
+ move_it_vertically_backward directly.
+ (Frecenter): Fix calculation of new start pos for negative arg.
+ Before, the new start pos was sometimes chosen too far back, so
+ the last line became only partially visible, and thus would be
+ either only semi-visible or automatically scrolled to the middle
+ of the window by redisplay.
+
+ * xdisp.c (init_iterator): Clear it.max_extra_line_spacing.
+ (move_it_vertically_backward): Don't recure to move further back.
+ (move_it_vertically): Remove superfluous condition.
+ (move_it_by_lines): Clear last_height when moved 0 lines.
+ (resize_mini_window): use it.max_extra_line_spacing.
+ (display_tool_bar_line): Clear row->extra_line_spacing.
+ (try_scrolling): Use move_it_vertically_backward directly.
+ (redisplay_window): Likewise.
+ (compute_line_metrics): Set row->extra_line_spacing.
+ (display_line, display_string): Likewise.
+ (x_produce_glyphs): Update it->max_extra_line_spacing.
+
* xmenu.c (pop_down_menu): Return nil.
2004-11-12 Jan Dj\e,Ad\e(Brv <jan.h.d@swipnet.se>