Merge from emacs-26

463f96b481 * doc/lispref/searching.texi: Document regexp repetition l...
08a6195571 ; test/README: Document TEST_LOAD_EL parameter.
7bbea90b1a * src/syntax.c (char-syntax): Warn about ignoring text pro...
50fcbb5f61 ; * src/process.c (Fprocess_contact): Fix docstring typo.
81ae9c8c05 Load mm-util as needed for url-file and url-data (Bug#30258)
5a1ee67ae1 Another minor copyedit in the manual's "Scroll Bars"
226a651e9e Minor fix in documentation of 'equal'
b26786c8d9 * lisp/dired-x.el (dired-guess-shell-alist-user): Doc fix....
5699a824f0 Minor rewording in Emacs manual's "Help Mode" node
f35ff0156e Fixes for Emacs manual in frames.texi
6cd4e8dcc5 * doc/misc/cl.texi (Efficiency Concerns): Fix 2012-10-27 t...
1412cf3edd Fix a few issues with latest GTK scaling changes
59db8dca03 Use scaled coordinates when calling into GTK
2892f05792 Scale monitor dimensions obtained from GTK

5 files changed, 33 insertions, 9 deletions

diff --git a/src/gtkutil.c b/src/gtkutil.c
index 825651cf083..3f21288f461 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -825,6 +825,7 @@ xg_set_geometry (struct frame *f)
 {
   if (f->size_hint_flags & (USPosition | PPosition))
     {
+      int scale = xg_get_scale (f);
 #if ! GTK_CHECK_VERSION (3, 22, 0)
       if (x_gtk_use_window_move)
 	{
@@ -840,8 +841,9 @@ xg_set_geometry (struct frame *f)
 	    f->top_pos = (x_display_pixel_height (FRAME_DISPLAY_INFO (f))
 			  - FRAME_PIXEL_HEIGHT (f) + f->top_pos);
 
+	  /* GTK works in scaled pixels, so convert from X pixels.  */
 	  gtk_window_move (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
-			   f->left_pos, f->top_pos);
+			   f->left_pos / scale, f->top_pos / scale);
 
 	  /* Reset size hint flags.  */
 	  f->size_hint_flags &= ~ (XNegative | YNegative);
@@ -849,9 +851,10 @@ xg_set_geometry (struct frame *f)
 	}
       else
 	{
-	  int left = f->left_pos;
+          /* GTK works in scaled pixels, so convert from X pixels.  */
+	  int left = f->left_pos / scale;
 	  int xneg = f->size_hint_flags & XNegative;
-	  int top = f->top_pos;
+	  int top = f->top_pos / scale;
 	  int yneg = f->size_hint_flags & YNegative;
 	  char geom_str[sizeof "=x--" + 4 * INT_STRLEN_BOUND (int)];
 	  guint id;
diff --git a/src/process.c b/src/process.c
index daa0dc68ae6..ff3edbb11a0 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1437,7 +1437,7 @@ optional KEY arg.  If KEY is nil, value is a cons cell of the form
 connection; it is t for a pipe connection.  If KEY is t, the complete
 contact information for the connection is returned, else the specific
 value for the keyword KEY is returned.  See `make-network-process',
-`make-serial-process', or `make pipe-process' for the list of keywords.
+`make-serial-process', or `make-pipe-process' for the list of keywords.
 If PROCESS is a non-blocking network process that hasn't been fully
 set up yet, this function will block until socket setup has completed.  */)
   (Lisp_Object process, Lisp_Object key)
diff --git a/src/syntax.c b/src/syntax.c
index a7977666593..52cec23cd7e 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -1108,7 +1108,12 @@ DEFUN ("char-syntax", Fchar_syntax, Schar_syntax, 1, 1, 0,
 For example, if CHARACTER is a word constituent, the
 character `w' (119) is returned.
 The characters that correspond to various syntax codes
-are listed in the documentation of `modify-syntax-entry'.  */)
+are listed in the documentation of `modify-syntax-entry'.
+
+If you're trying to determine the syntax of characters in the buffer,
+this is probably the wrong function to use, because it can't take
+`syntax-table' text properties into account.  Consider using
+`syntax-after' instead.  */)
   (Lisp_Object character)
 {
   int char_int;
diff --git a/src/xfns.c b/src/xfns.c
index 43c55cca643..92cd12be164 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -4938,6 +4938,7 @@ Internal use only, use `display-monitor-attributes-list' instead.  */)
       gint width_mm = -1, height_mm = -1;
       GdkRectangle rec, work;
       struct MonitorInfo *mi = &monitors[i];
+      int scale = 1;
 
 #if GTK_CHECK_VERSION (3, 22, 0)
       GdkMonitor *monitor = gdk_display_get_monitor (gdpy, i);
@@ -4983,6 +4984,16 @@ Internal use only, use `display-monitor-attributes-list' instead.  */)
       }
 #endif
 
+      /* GTK returns scaled sizes for the workareas.  */
+#if GTK_CHECK_VERSION (3, 22, 0)
+      scale = gdk_monitor_get_scale_factor (monitor);
+#elif GTK_CHECK_VERSION (3, 10, 0)
+      scale = gdk_screen_get_monitor_scale_factor (gscreen, i);
+#endif
+      rec.width *= scale;
+      rec.height *= scale;
+      work.width *= scale;
+      work.height *= scale;
 
       mi->geom.x = rec.x;
       mi->geom.y = rec.y;
diff --git a/src/xterm.c b/src/xterm.c
index 0a2068d7f30..7603e4f3991 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -10301,6 +10301,9 @@ void
 x_set_offset (struct frame *f, register int xoff, register int yoff, int change_gravity)
 {
   int modified_top, modified_left;
+#ifdef USE_GTK
+  int scale = xg_get_scale (f);
+#endif
 
   if (change_gravity > 0)
     {
@@ -10323,11 +10326,12 @@ x_set_offset (struct frame *f, register int xoff, register int yoff, int change_
   if (x_gtk_use_window_move)
     {
       /* When a position change was requested and the outer GTK widget
-	 has been realized already, leave it to gtk_window_move to DTRT
-	 and return.  Used for Bug#25851 and Bug#25943.  */
+	 has been realized already, leave it to gtk_window_move to
+	 DTRT and return.  Used for Bug#25851 and Bug#25943.  Convert
+	 from X pixels to GTK scaled pixels.  */
       if (change_gravity != 0 && FRAME_GTK_OUTER_WIDGET (f))
 	gtk_window_move (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
-			 f->left_pos, f->top_pos);
+			 f->left_pos / scale, f->top_pos / scale);
       unblock_input ();
       return;
     }
@@ -10346,8 +10350,9 @@ x_set_offset (struct frame *f, register int xoff, register int yoff, int change_
     }
 
 #ifdef USE_GTK
+  /* Make sure we adjust for possible scaling.  */
   gtk_window_move (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
-		   modified_left, modified_top);
+		   modified_left / scale, modified_top / scale);
 #else
   XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
 	       modified_left, modified_top);