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* src/xdisp.c (hscrolling_current_line_p): New function. (init_iterator): If auto-hscrolling just the current line, don't increment the iterator's first_visible_x and last_visible_x variables. (hscroll_window_tree): Recompute window's hscroll when moving vertically to another screen line. (redisplay_window): If we are hscrolling only the current line, disable the optimizations that rely on the current matrix being up-to-date. (display_line): Accept an additional argument CURSOR_VPOS, the vertical position of the current screen line which might need hscrolling; all callers changed. Compute first_visible_x and last_visible_x specially when auto-hscrolling current line, by repeating the calculation that is done in init_iterator in other modes. (syms_of_xdisp) <auto-hscroll-mode>: No longer boolean, it can now accept a 3rd value 'current-line, to turn on the mode where only the current line is hscrolled. * etc/NEWS: Mention the new auto-hscroll-mode value. |
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This directory contains the architecture-independent files used by or with Emacs. This includes some text files of documentation for GNU Emacs or of interest to Emacs users, and the file of dumped docstrings for Emacs functions and variables. COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES File: emacs.icon Author: Sun Microsystems, Inc Copyright (C) 1999, 2001-2017 Free Software Foundation, Inc. License: GNU General Public License version 3 or later (see COPYING)