X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/67ab0163d67fbfeb41c37c8a259f27eeef965520..acaf905b1130aae80fa59d2c861ffd4c8eb75486:/src/fringe.c
diff --git a/src/fringe.c b/src/fringe.c
index d42d6467f3..5285d09dfb 100644
--- a/src/fringe.c
+++ b/src/fringe.c
@@ -1,5 +1,5 @@
/* Fringe handling (split from xdisp.c).
- Copyright (C) 1985-1988, 1993-1995, 1997-2011 Free Software Foundation, Inc.
+ Copyright (C) 1985-1988, 1993-1995, 1997-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -35,7 +35,7 @@ along with GNU Emacs. If not, see . */
Logical bitmaps are used internally to denote things like
'end-of-buffer', 'left-truncation', 'overlay-arrow', etc.
- Physical bitmaps specify the visual appearence of the bitmap,
+ Physical bitmaps specify the visual appearance of the bitmap,
e.g. 'bottom-left-angle', 'left-arrow', 'left-triangle', etc.
User defined bitmaps are physical bitmaps.
@@ -64,9 +64,9 @@ along with GNU Emacs. If not, see . */
must specify physical bitmap symbols.
*/
-Lisp_Object Qtruncation, Qcontinuation, Qoverlay_arrow;
-Lisp_Object Qempty_line, Qtop_bottom;
-Lisp_Object Qhollow_small;
+static Lisp_Object Qtruncation, Qcontinuation, Qoverlay_arrow;
+static Lisp_Object Qempty_line, Qtop_bottom;
+static Lisp_Object Qhollow_small;
enum fringe_bitmap_align
{
@@ -427,7 +427,7 @@ static unsigned short empty_line_bits[] = {
/* NOTE: The order of these bitmaps must match the sequence
used in fringe.el to define the corresponding symbols. */
-struct fringe_bitmap standard_bitmaps[] =
+static struct fringe_bitmap standard_bitmaps[] =
{
{ NULL, 0, 0, 0, 0, 0 }, /* NO_FRINGE_BITMAP */
{ FRBITS (question_mark_bits), 8, 0, ALIGN_BITMAP_CENTER, 0 },
@@ -456,12 +456,15 @@ struct fringe_bitmap standard_bitmaps[] =
#define NO_FRINGE_BITMAP 0
#define UNDEF_FRINGE_BITMAP 1
-#define MAX_STANDARD_FRINGE_BITMAPS (sizeof(standard_bitmaps)/sizeof(standard_bitmaps[0]))
+#define MAX_STANDARD_FRINGE_BITMAPS (sizeof (standard_bitmaps)/sizeof (standard_bitmaps[0]))
static struct fringe_bitmap **fringe_bitmaps;
static Lisp_Object *fringe_faces;
static int max_fringe_bitmaps;
+#ifndef HAVE_NS
+static
+#endif
int max_used_fringe_bitmap = MAX_STANDARD_FRINGE_BITMAPS;
@@ -518,6 +521,20 @@ get_fringe_bitmap_name (int bn)
return num;
}
+/* Get fringe bitmap data for bitmap number BN. */
+
+static struct fringe_bitmap *
+get_fringe_bitmap_data (int bn)
+{
+ struct fringe_bitmap *fb;
+
+ fb = fringe_bitmaps[bn];
+ if (fb == NULL)
+ fb = &standard_bitmaps[bn < MAX_STANDARD_FRINGE_BITMAPS
+ ? bn : UNDEF_FRINGE_BITMAP];
+
+ return fb;
+}
/* Draw the bitmap WHICH in one of the left or right fringes of
window W. ROW is the glyph row for which to display the bitmap; it
@@ -565,10 +582,7 @@ draw_fringe_bitmap_1 (struct window *w, struct glyph_row *row, int left_p, int o
face_id = FRINGE_FACE_ID;
}
- fb = fringe_bitmaps[which];
- if (fb == NULL)
- fb = &standard_bitmaps[which < MAX_STANDARD_FRINGE_BITMAPS
- ? which : UNDEF_FRINGE_BITMAP];
+ fb = get_fringe_bitmap_data (which);
period = fb->period;
@@ -913,7 +927,12 @@ update_window_fringes (struct window *w, int keep_current_p)
int bitmap_cache[MAX_BITMAP_CACHE];
int top_ind_rn, bot_ind_rn;
int top_ind_min_y, bot_ind_max_y;
- int top_row_ends_at_zv_p, bot_row_ends_at_zv_p;
+
+ /* top_ind_rn is set to a nonnegative value whenever
+ row->indicate_bob_p is set, so it's OK that top_row_ends_at_zv_p
+ is not initialized here. Similarly for bot_ind_rn,
+ row->indicate_eob_p and bot_row_ends_at_zv_p. */
+ int top_row_ends_at_zv_p IF_LINT (= 0), bot_row_ends_at_zv_p IF_LINT (= 0);
if (w->pseudo_window_p)
return 0;
@@ -949,18 +968,10 @@ update_window_fringes (struct window *w, int keep_current_p)
y < yb && rn < nrows;
y += row->height, ++rn)
{
- unsigned indicate_bob_p, indicate_top_line_p;
- unsigned indicate_eob_p, indicate_bottom_line_p;
-
row = w->desired_matrix->rows + rn;
if (!row->enabled_p)
row = w->current_matrix->rows + rn;
- indicate_bob_p = row->indicate_bob_p;
- indicate_top_line_p = row->indicate_top_line_p;
- indicate_eob_p = row->indicate_eob_p;
- indicate_bottom_line_p = row->indicate_bottom_line_p;
-
row->indicate_bob_p = row->indicate_top_line_p = 0;
row->indicate_eob_p = row->indicate_bottom_line_p = 0;
@@ -1041,12 +1052,8 @@ update_window_fringes (struct window *w, int keep_current_p)
if (bn != NO_FRINGE_BITMAP)
{
- struct fringe_bitmap *fb;
+ struct fringe_bitmap *fb = get_fringe_bitmap_data (bn);
- fb = fringe_bitmaps[bn];
- if (fb == NULL)
- fb = &standard_bitmaps[bn < MAX_STANDARD_FRINGE_BITMAPS
- ? bn : UNDEF_FRINGE_BITMAP];
if (fb->align == ALIGN_BITMAP_TOP && fb->period == 0)
{
struct glyph_row *row1;
@@ -1100,12 +1107,8 @@ update_window_fringes (struct window *w, int keep_current_p)
if (bn != NO_FRINGE_BITMAP)
{
- struct fringe_bitmap *fb;
+ struct fringe_bitmap *fb = get_fringe_bitmap_data (bn);
- fb = fringe_bitmaps[bn];
- if (fb == NULL)
- fb = &standard_bitmaps[bn < MAX_STANDARD_FRINGE_BITMAPS
- ? bn : UNDEF_FRINGE_BITMAP];
if (fb->align == ALIGN_BITMAP_BOTTOM && fb->period == 0)
{
struct glyph_row *row1;
@@ -1141,6 +1144,7 @@ update_window_fringes (struct window *w, int keep_current_p)
int left, right;
unsigned left_face_id, right_face_id;
int left_offset, right_offset;
+ int periodic_p;
row = w->desired_matrix->rows + rn;
cur = w->current_matrix->rows + rn;
@@ -1149,6 +1153,7 @@ update_window_fringes (struct window *w, int keep_current_p)
left_face_id = right_face_id = DEFAULT_FACE_ID;
left_offset = right_offset = 0;
+ periodic_p = 0;
/* Decide which bitmap to draw in the left fringe. */
if (WINDOW_LEFT_FRINGE_WIDTH (w) == 0)
@@ -1160,7 +1165,7 @@ update_window_fringes (struct window *w, int keep_current_p)
}
else if ((!row->reversed_p && row->truncated_on_left_p)
|| (row->reversed_p && row->truncated_on_right_p))
- left = LEFT_FRINGE(0, Qtruncation, 0);
+ left = LEFT_FRINGE (0, Qtruncation, 0);
else if (row->indicate_bob_p && EQ (boundary_top, Qleft))
{
left = ((row->indicate_eob_p && EQ (boundary_bot, Qleft))
@@ -1240,6 +1245,9 @@ update_window_fringes (struct window *w, int keep_current_p)
else
right = NO_FRINGE_BITMAP;
+ periodic_p = (get_fringe_bitmap_data (left)->period != 0
+ || get_fringe_bitmap_data (right)->period != 0);
+
if (row->y != cur->y
|| row->visible_height != cur->visible_height
|| row->ends_at_zv_p != cur->ends_at_zv_p
@@ -1249,6 +1257,7 @@ update_window_fringes (struct window *w, int keep_current_p)
|| right_face_id != cur->right_fringe_face_id
|| left_offset != cur->left_fringe_offset
|| right_offset != cur->right_fringe_offset
+ || periodic_p != cur->fringe_bitmap_periodic_p
|| cur->redraw_fringe_bitmaps_p)
{
redraw_p = row->redraw_fringe_bitmaps_p = 1;
@@ -1261,6 +1270,7 @@ update_window_fringes (struct window *w, int keep_current_p)
cur->right_fringe_face_id = right_face_id;
cur->left_fringe_offset = left_offset;
cur->right_fringe_offset = right_offset;
+ cur->fringe_bitmap_periodic_p = periodic_p;
}
}
@@ -1269,8 +1279,12 @@ update_window_fringes (struct window *w, int keep_current_p)
if (row->overlay_arrow_bitmap != cur->overlay_arrow_bitmap)
{
- redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1;
- cur->overlay_arrow_bitmap = row->overlay_arrow_bitmap;
+ redraw_p = row->redraw_fringe_bitmaps_p = 1;
+ if (!keep_current_p)
+ {
+ cur->redraw_fringe_bitmaps_p = 1;
+ cur->overlay_arrow_bitmap = row->overlay_arrow_bitmap;
+ }
}
row->left_fringe_bitmap = left;
@@ -1279,6 +1293,7 @@ update_window_fringes (struct window *w, int keep_current_p)
row->right_fringe_face_id = right_face_id;
row->left_fringe_offset = left_offset;
row->right_fringe_offset = right_offset;
+ row->fringe_bitmap_periodic_p = periodic_p;
}
return redraw_p && !keep_current_p;
@@ -1380,7 +1395,7 @@ compute_fringe_widths (struct frame *f, int redraw)
/* Free resources used by a user-defined bitmap. */
-void
+static void
destroy_fringe_bitmap (int n)
{
struct fringe_bitmap **fbp;
@@ -1448,7 +1463,7 @@ static const unsigned char swap_nibble[16] = {
0x3, 0xb, 0x7, 0xf}; /* 0011 1011 0111 1111 */
#endif /* HAVE_X_WINDOWS */
-void
+static void
init_fringe_bitmap (int which, struct fringe_bitmap *fb, int once_p)
{
if (once_p || fb->dynamic)
@@ -1531,7 +1546,7 @@ If BITMAP already exists, the existing definition is replaced. */)
if (STRINGP (bits))
h = SCHARS (bits);
else if (VECTORP (bits))
- h = XVECTOR (bits)->size;
+ h = ASIZE (bits);
else
wrong_type_argument (Qsequencep, bits);
@@ -1595,22 +1610,25 @@ If BITMAP already exists, the existing definition is replaced. */)
if (n == max_fringe_bitmaps)
{
- if ((max_fringe_bitmaps + 20) > MAX_FRINGE_BITMAPS)
+ int bitmaps = max_fringe_bitmaps + 20;
+ if (MAX_FRINGE_BITMAPS < bitmaps)
error ("No free fringe bitmap slots");
i = max_fringe_bitmaps;
- max_fringe_bitmaps += 20;
fringe_bitmaps
= ((struct fringe_bitmap **)
- xrealloc (fringe_bitmaps, max_fringe_bitmaps * sizeof (struct fringe_bitmap *)));
+ xrealloc (fringe_bitmaps, bitmaps * sizeof *fringe_bitmaps));
fringe_faces
- = (Lisp_Object *) xrealloc (fringe_faces, max_fringe_bitmaps * sizeof (Lisp_Object));
+ = (Lisp_Object *) xrealloc (fringe_faces,
+ bitmaps * sizeof *fringe_faces);
- for (; i < max_fringe_bitmaps; i++)
+ for (i = max_fringe_bitmaps; i < bitmaps; i++)
{
fringe_bitmaps[i] = NULL;
fringe_faces[i] = Qnil;
}
+
+ max_fringe_bitmaps = bitmaps;
}
}
@@ -1723,18 +1741,12 @@ Return nil if POS is not visible in WINDOW. */)
void
syms_of_fringe (void)
{
- Qtruncation = intern_c_string ("truncation");
- staticpro (&Qtruncation);
- Qcontinuation = intern_c_string ("continuation");
- staticpro (&Qcontinuation);
- Qoverlay_arrow = intern_c_string ("overlay-arrow");
- staticpro (&Qoverlay_arrow);
- Qempty_line = intern_c_string ("empty-line");
- staticpro (&Qempty_line);
- Qtop_bottom = intern_c_string ("top-bottom");
- staticpro (&Qtop_bottom);
- Qhollow_small = intern_c_string ("hollow-small");
- staticpro (&Qhollow_small);
+ DEFSYM (Qtruncation, "truncation");
+ DEFSYM (Qcontinuation, "continuation");
+ DEFSYM (Qoverlay_arrow, "overlay-arrow");
+ DEFSYM (Qempty_line, "empty-line");
+ DEFSYM (Qtop_bottom, "top-bottom");
+ DEFSYM (Qhollow_small, "hollow-small");
defsubr (&Sdestroy_fringe_bitmap);
defsubr (&Sdefine_fringe_bitmap);
@@ -1775,7 +1787,7 @@ init_fringe_once (void)
int bt;
for (bt = NO_FRINGE_BITMAP + 1; bt < MAX_STANDARD_FRINGE_BITMAPS; bt++)
- init_fringe_bitmap(bt, &standard_bitmaps[bt], 1);
+ init_fringe_bitmap (bt, &standard_bitmaps[bt], 1);
}
void
@@ -1831,4 +1843,3 @@ w32_reset_fringes (void)
#endif /* HAVE_NTGUI */
#endif /* HAVE_WINDOW_SYSTEM */
-