#include <config.h>
-#define DISPEXTERN_INLINE EXTERN_INLINE
-
#include "sysstdio.h"
#include <unistd.h>
static void adjust_frame_glyphs_for_window_redisplay (struct frame *);
static void adjust_frame_glyphs_for_frame_redisplay (struct frame *);
-/* True upon entry to redisplay means do not assume anything about
- current contents of actual terminal frame; clear and redraw it. */
-
-bool frame_garbaged;
-
/* True means last display completed. False means it was preempted. */
bool display_completed;
Lisp_Object Qdisplay_table, Qredisplay_dont_pause;
-\f
-/* The currently selected frame. In a single-frame version, this
- variable always equals the_only_frame. */
-
-Lisp_Object selected_frame;
-
-/* A frame which is not just a mini-buffer, or 0 if there are no such
- frames. This is usually the most recent such frame that was
- selected. In a single-frame version, this variable always holds
- the address of the_only_frame. */
-
-struct frame *last_nonminibuf_frame;
-
/* True means SIGWINCH happened when not safe. */
static bool delayed_size_change;
See dispextern.h for an overall explanation of glyph rows.
***********************************************************************/
-/* Clear glyph row ROW. Do it in a way that makes it robust against
- changes in the glyph_row structure, i.e. addition or removal of
- structure members. */
-
-static struct glyph_row null_row;
+/* Clear glyph row ROW. NOTE: this code relies on the current
+ layout of `glyphs' and `used' fields of `struct glyph_row'. */
void
clear_glyph_row (struct glyph_row *row)
{
- struct glyph *p[1 + LAST_AREA];
-
- /* Save pointers. */
- p[LEFT_MARGIN_AREA] = row->glyphs[LEFT_MARGIN_AREA];
- p[TEXT_AREA] = row->glyphs[TEXT_AREA];
- p[RIGHT_MARGIN_AREA] = row->glyphs[RIGHT_MARGIN_AREA];
- p[LAST_AREA] = row->glyphs[LAST_AREA];
-
- /* Clear. */
- *row = null_row;
-
- /* Restore pointers. */
- row->glyphs[LEFT_MARGIN_AREA] = p[LEFT_MARGIN_AREA];
- row->glyphs[TEXT_AREA] = p[TEXT_AREA];
- row->glyphs[RIGHT_MARGIN_AREA] = p[RIGHT_MARGIN_AREA];
- row->glyphs[LAST_AREA] = p[LAST_AREA];
-
-#if 0 /* At some point, some bit-fields of struct glyph were not set,
- which made glyphs unequal when compared with GLYPH_EQUAL_P.
- Redisplay outputs such glyphs, and flickering effects were
- the result. This also depended on the contents of memory
- returned by xmalloc. If flickering happens again, activate
- the code below. If the flickering is gone with that, chances
- are that the flickering has the same reason as here. */
- memset (p[0], 0, (char *) p[LAST_AREA] - (char *) p[0]);
-#endif
+ enum { off = offsetof (struct glyph_row, used) };
+
+ /* Zero everything except pointers in `glyphs'. */
+ memset (row->used, 0, sizeof *row - off);
}
}
-/* Copy glyph row structure FROM to glyph row structure TO, except
- that glyph pointers, the `used' counts, and the hash values in the
- structures are left unchanged. */
+/* Copy glyph row structure FROM to glyph row structure TO, except that
+ glyph pointers, the `used' counts, and the hash values in the structures
+ are left unchanged. NOTE: this code relies on the current layout of
+ `glyphs', `used', `hash' and `x' fields of `struct glyph_row'. */
static void
copy_row_except_pointers (struct glyph_row *to, struct glyph_row *from)
{
- struct glyph *pointers[1 + LAST_AREA];
- short used[LAST_AREA];
- unsigned hashval;
-
- /* Save glyph pointers of TO. */
- memcpy (pointers, to->glyphs, sizeof to->glyphs);
- memcpy (used, to->used, sizeof to->used);
- hashval = to->hash;
-
- /* Do a structure assignment. */
- *to = *from;
-
- /* Restore original pointers of TO. */
- memcpy (to->glyphs, pointers, sizeof to->glyphs);
- memcpy (to->used, used, sizeof to->used);
- to->hash = hashval;
+ enum { off = offsetof (struct glyph_row, x) };
+
+ memcpy (&to->x, &from->x, sizeof *to - off);
}
struct glyph_row *from = f->current_matrix->rows + i;
struct glyph_row *to = saved->rows + i;
ptrdiff_t nbytes = from->used[TEXT_AREA] * sizeof (struct glyph);
+
to->glyphs[TEXT_AREA] = xmalloc (nbytes);
memcpy (to->glyphs[TEXT_AREA], from->glyphs[TEXT_AREA], nbytes);
to->used[TEXT_AREA] = from->used[TEXT_AREA];
+ to->enabled_p = from->enabled_p;
+ to->hash = from->hash;
+ if (from->used[LEFT_MARGIN_AREA])
+ {
+ nbytes = from->used[LEFT_MARGIN_AREA] * sizeof (struct glyph);
+ to->glyphs[LEFT_MARGIN_AREA] = (struct glyph *) xmalloc (nbytes);
+ memcpy (to->glyphs[LEFT_MARGIN_AREA],
+ from->glyphs[LEFT_MARGIN_AREA], nbytes);
+ to->used[LEFT_MARGIN_AREA] = from->used[LEFT_MARGIN_AREA];
+ }
+ if (from->used[RIGHT_MARGIN_AREA])
+ {
+ nbytes = from->used[RIGHT_MARGIN_AREA] * sizeof (struct glyph);
+ to->glyphs[RIGHT_MARGIN_AREA] = (struct glyph *) xmalloc (nbytes);
+ memcpy (to->glyphs[RIGHT_MARGIN_AREA],
+ from->glyphs[RIGHT_MARGIN_AREA], nbytes);
+ to->used[RIGHT_MARGIN_AREA] = from->used[RIGHT_MARGIN_AREA];
+ }
}
return saved;
struct glyph_row *from = saved->rows + i;
struct glyph_row *to = f->current_matrix->rows + i;
ptrdiff_t nbytes = from->used[TEXT_AREA] * sizeof (struct glyph);
+
memcpy (to->glyphs[TEXT_AREA], from->glyphs[TEXT_AREA], nbytes);
to->used[TEXT_AREA] = from->used[TEXT_AREA];
xfree (from->glyphs[TEXT_AREA]);
+ nbytes = from->used[LEFT_MARGIN_AREA] * sizeof (struct glyph);
+ if (nbytes)
+ {
+ memcpy (to->glyphs[LEFT_MARGIN_AREA],
+ from->glyphs[LEFT_MARGIN_AREA], nbytes);
+ to->used[LEFT_MARGIN_AREA] = from->used[LEFT_MARGIN_AREA];
+ xfree (from->glyphs[LEFT_MARGIN_AREA]);
+ }
+ else
+ to->used[LEFT_MARGIN_AREA] = 0;
+ nbytes = from->used[RIGHT_MARGIN_AREA] * sizeof (struct glyph);
+ if (nbytes)
+ {
+ memcpy (to->glyphs[RIGHT_MARGIN_AREA],
+ from->glyphs[RIGHT_MARGIN_AREA], nbytes);
+ to->used[RIGHT_MARGIN_AREA] = from->used[RIGHT_MARGIN_AREA];
+ xfree (from->glyphs[RIGHT_MARGIN_AREA]);
+ }
+ else
+ to->used[RIGHT_MARGIN_AREA] = 0;
}
xfree (saved->rows);
/* Mark all windows as inaccurate, so that every window will have
its redisplay done. */
mark_window_display_accurate (FRAME_ROOT_WINDOW (f), 0);
- set_window_update_flags (XWINDOW (FRAME_ROOT_WINDOW (f)), 1);
+ set_window_update_flags (XWINDOW (FRAME_ROOT_WINDOW (f)), NULL, 1);
f->garbaged = 0;
}
do_pause:
/* Reset flags indicating that a window should be updated. */
- set_window_update_flags (root_window, 0);
+ set_window_update_flags (root_window, NULL, 0);
display_completed = !paused_p;
return paused_p;
}
+/* Update a TTY frame F that has a menu dropped down over some of its
+ glyphs. This is like the second part of update_frame, but it
+ doesn't call build_frame_matrix, because we already have the
+ desired matrix prepared, and don't want it to be overwritten by the
+ text of the normal display. */
+void
+update_frame_with_menu (struct frame *f)
+{
+ struct window *root_window = XWINDOW (f->root_window);
+ bool paused_p;
+
+ eassert (FRAME_TERMCAP_P (f));
+
+ /* We are working on frame matrix basis. Set the frame on whose
+ frame matrix we operate. */
+ set_frame_matrix_frame (f);
+
+ /* Update the display */
+ update_begin (f);
+ /* Force update_frame_1 not to stop due to pending input, and not
+ try scrolling. */
+ paused_p = update_frame_1 (f, 1, 1);
+ update_end (f);
+
+ if (FRAME_TTY (f)->termscript)
+ fflush (FRAME_TTY (f)->termscript);
+ fflush (FRAME_TTY (f)->output);
+ /* Check window matrices for lost pointers. */
+#if GLYPH_DEBUG
+#if 0
+ /* We cannot possibly survive the matrix pointers check, since
+ we have overwritten parts of the frame glyph matrix without
+ making any updates to the window matrices. */
+ check_window_matrix_pointers (root_window);
+#endif
+ add_frame_display_history (f, paused_p);
+#endif
+
+ /* Reset flags indicating that a window should be updated. */
+ set_window_update_flags (root_window, NULL, 0);
+}
\f
/************************************************************************
}
-/* Set WINDOW->must_be_updated_p to ON_P for all windows in the window
- tree rooted at W. */
+/* If B is NULL, set WINDOW->must_be_updated_p to ON_P for all windows in
+ the window tree rooted at W. Otherwise set WINDOW->must_be_updated_p
+ to ON_P only for windows that displays B. */
void
-set_window_update_flags (struct window *w, bool on_p)
+set_window_update_flags (struct window *w, struct buffer *b, bool on_p)
{
while (w)
{
if (WINDOWP (w->contents))
- set_window_update_flags (XWINDOW (w->contents), on_p);
- else
+ set_window_update_flags (XWINDOW (w->contents), b, on_p);
+ else if (!(b && b != XBUFFER (w->contents)))
w->must_be_updated_p = on_p;
w = NILP (w->next) ? 0 : XWINDOW (w->next);
}
}
- lint_assume (0 <= FRAME_LINES (f));
+ assume (0 <= FRAME_LINES (f));
pause_p = 0 < i && i < FRAME_LINES (f) - 1;
/* Now just clean up termcap drivers and set cursor, etc. */
HCoop / bpt / emacs.git / blobdiff