XEmacs 21.2.41 "Polyhymnia".
[chise/xemacs-chise.git.1] / src / glyphs.h
index b0e65f1..d9c64d4 100644 (file)
@@ -21,8 +21,8 @@ Boston, MA 02111-1307, USA.  */
 
 /* Synched up with: Not in FSF. */
 
-#ifndef _XEMACS_GLYPHS_H_
-#define _XEMACS_GLYPHS_H_
+#ifndef INCLUDED_glyphs_h_
+#define INCLUDED_glyphs_h_
 
 #include "specifier.h"
 #include "gui.h"
@@ -50,19 +50,21 @@ struct image_instantiator_methods;
   tiff                         color-pixmap
   bmp                          color-pixmap
   cursor-font                  pointer
-  mswindows-resource           pointer
+  mswindows-resource           pointer, color-pixmap
   font                         pointer
   subwindow                    subwindow
   inherit                      mono-pixmap
   autodetect                   mono-pixmap, color-pixmap, pointer, text
-  button                               widget
+  button                       widget
   edit-field                   widget
-  combo        -box                    widget
+  combo-box                    widget
   progress-gauge               widget
   tab-control                  widget
   tree-view                    widget
   scrollbar                    widget
-  static                               widget
+  label                                widget
+  layout                       widget
+  native-layout                        widget
 */
 
 /* These are methods specific to a particular format of image instantiator
@@ -74,6 +76,7 @@ struct ii_keyword_entry
   Lisp_Object keyword;
   void (*validate) (Lisp_Object data);
   int multiple_p;
+  int copy_p;
 };
 
 typedef struct
@@ -83,6 +86,27 @@ typedef struct
 
 extern const struct struct_description iim_description;
 
+enum image_instance_geometry
+{
+  IMAGE_GEOMETRY,
+  IMAGE_DESIRED_GEOMETRY,
+  IMAGE_MIN_GEOMETRY,
+  IMAGE_MAX_GEOMETRY
+};
+
+#define IMAGE_UNSPECIFIED_GEOMETRY -1
+#define IMAGE_UNCHANGED_GEOMETRY -2
+
+#define WIDGET_BORDER_HEIGHT 4
+#define WIDGET_BORDER_WIDTH 4
+
+enum governing_domain
+{
+  GOVERNING_DOMAIN_WINDOW,
+  GOVERNING_DOMAIN_FRAME,
+  GOVERNING_DOMAIN_DEVICE
+};
+
 struct image_instantiator_methods
 {
   Lisp_Object symbol;
@@ -105,7 +129,12 @@ struct image_instantiator_methods
      that should be used in a glyph, for devices of type CONSOLE_TYPE.
      Signal an error if conversion fails. */
   Lisp_Object (*normalize_method) (Lisp_Object instantiator,
-                                  Lisp_Object console_type);
+                                  Lisp_Object console_type,
+                                  Lisp_Object dest_mask);
+
+  /* Governing domain method: Return an int indicating what type of
+     domain an instance in this format is governed by. */
+  int (*governing_domain_method) (void);
 
   /* Possible-dest-types method: Return a mask indicating what dest types
      are compatible with this format. */
@@ -121,6 +150,11 @@ struct image_instantiator_methods
                              Lisp_Object pointer_bg,
                              int dest_mask,
                              Lisp_Object domain);
+  /* Post instantiate method: finish instantiation of the image
+     instance. */
+  void (*post_instantiate_method) (Lisp_Object image_instance,
+                                  Lisp_Object instantiator,
+                                  Lisp_Object domain);
   /* Property method: Given an image instance, return device specific
      properties. */
   Lisp_Object (*property_method) (Lisp_Object image_instance,
@@ -130,6 +164,24 @@ struct image_instantiator_methods
   Lisp_Object (*set_property_method) (Lisp_Object image_instance,
                                      Lisp_Object property,
                                      Lisp_Object val);
+  /* Asynchronously update properties. */
+  void (*update_method) (Lisp_Object image_instance,
+                        Lisp_Object instantiator);
+  void (*redisplay_method) (Lisp_Object image_instance);
+
+  /* Find out the desired geometry, as given by disp, of this image
+   instance. Actual geometry is stored in the appropriate slots in the
+   image instance. */
+  void (*query_geometry_method) (Lisp_Object image_instance,
+                                int* width, int* height,
+                                enum image_instance_geometry disp,
+                                Lisp_Object domain);
+
+  /* Layout the instance and its children bounded by the provided
+     dimensions. Returns success or failure. */
+  int (*layout_method) (Lisp_Object image_instance,
+                       int width, int height, int xoffset, int yoffset,
+                       Lisp_Object domain);
 };
 
 /***** Calling an image-instantiator method *****/
@@ -158,7 +210,7 @@ do {                                                        \
    the specified value */
 
 #define IIFORMAT_METH_OR_GIVEN(mstruc, m, args, given) \
-  (HAS_IIFORMAT_METH_P (mstruc, m) ?                   \
+  ((mstruc && HAS_IIFORMAT_METH_P (mstruc, m)) ?               \
    IIFORMAT_METH (mstruc, m, args) : (given))
 
 /***** Defining new image-instantiator types *****/
@@ -170,19 +222,19 @@ extern struct image_instantiator_methods *format##_image_instantiator_methods
 struct image_instantiator_methods *format##_image_instantiator_methods
 
 #define INITIALIZE_IMAGE_INSTANTIATOR_FORMAT_NO_SYM(format, obj_name)  \
-do {                                                           \
-  format##_image_instantiator_methods =                                \
-    xnew_and_zero (struct image_instantiator_methods);         \
-  format##_image_instantiator_methods->symbol = Q##format;     \
-  format##_image_instantiator_methods->device = Qnil;          \
-  format##_image_instantiator_methods->keywords =              \
-    Dynarr_new (ii_keyword_entry);                             \
-  format##_image_instantiator_methods->consoles =              \
-    Dynarr_new (console_type_entry);                           \
-  add_entry_to_image_instantiator_format_list                  \
-    (Q##format, format##_image_instantiator_methods);          \
-  dumpstruct (&format##_image_instantiator_methods,            \
-              &iim_description);                               \
+do {                                                                   \
+  format##_image_instantiator_methods =                                        \
+    xnew_and_zero (struct image_instantiator_methods);                 \
+  format##_image_instantiator_methods->symbol = Q##format;             \
+  format##_image_instantiator_methods->device = Qnil;                  \
+  format##_image_instantiator_methods->keywords =                      \
+    Dynarr_new (ii_keyword_entry);                                     \
+  format##_image_instantiator_methods->consoles =                      \
+    Dynarr_new (console_type_entry);                                   \
+  add_entry_to_image_instantiator_format_list                          \
+    (Q##format, format##_image_instantiator_methods);                  \
+  dump_add_root_struct_ptr (&format##_image_instantiator_methods,      \
+                           &iim_description);                          \
 } while (0)
 
 #define INITIALIZE_IMAGE_INSTANTIATOR_FORMAT(format, obj_name) \
@@ -202,33 +254,35 @@ do {                                                              \
 /* Declare that KEYW is a valid keyword for image-instantiator format
    FORMAT.  VALIDATE_FUN if a function that returns whether the data
    is valid.  The keyword may not appear more than once. */
-#define IIFORMAT_VALID_KEYWORD(format, keyw, validate_fun)     \
+#define IIFORMAT_VALID_GENERIC_KEYWORD(format, keyw, validate_fun, copy, multi) \
   do {                                                         \
     struct ii_keyword_entry entry;                             \
                                                                \
     entry.keyword = keyw;                                      \
     entry.validate = validate_fun;                             \
-    entry.multiple_p = 0;                                      \
+    entry.multiple_p = multi;                                  \
+    entry.copy_p = copy;                                       \
     Dynarr_add (format##_image_instantiator_methods->keywords, \
                entry);                                         \
   } while (0)
 
+#define IIFORMAT_VALID_KEYWORD(format, keyw, validate_fun)     \
+IIFORMAT_VALID_GENERIC_KEYWORD(format, keyw, validate_fun, 1, 0)
+
 /* Same as IIFORMAT_VALID_KEYWORD except that the keyword may
    appear multiple times. */
-#define IIFORMAT_VALID_MULTI_KEYWORD(format, keyword, validate_fun)    \
-  do {                                                                 \
-    struct ii_keyword_entry entry;                                     \
-                                                                       \
-    entry.keyword = keyword;                                           \
-    entry.validate = validate_fun;                                     \
-    entry.multiple_p = 1;                                              \
-    Dynarr_add (format##_image_instantiator_methods->keywords,         \
-               entry);                                                 \
-  } while (0)
+#define IIFORMAT_VALID_MULTI_KEYWORD(format, keyw, validate_fun)       \
+IIFORMAT_VALID_GENERIC_KEYWORD(format, keyw, validate_fun, 1, 1)
 
-/* Declare that image-instantiator format FORMAT is supported on 
+/* Same as IIFORMAT_VALID_KEYWORD except that the argument is not
+   copied by the specifier functions. This is necessary for things
+   like callbacks etc. */
+#define IIFORMAT_VALID_NONCOPY_KEYWORD(format, keyw, validate_fun)     \
+IIFORMAT_VALID_GENERIC_KEYWORD(format, keyw, validate_fun, 0, 0)
+
+/* Declare that image-instantiator format FORMAT is supported on
    CONSOLE type. */
-#define IIFORMAT_VALID_CONSOLE(console, format)                \
+#define IIFORMAT_VALID_CONSOLE(console, format)                        \
   do {                                                         \
     struct console_type_entry entry;                           \
                                                                \
@@ -238,23 +292,27 @@ do {                                                              \
                entry);                                         \
   } while (0)
 
-#define DEFINE_DEVICE_IIFORMAT(type, format)\
-DECLARE_IMAGE_INSTANTIATOR_FORMAT(format);             \
+#define IIFORMAT_VALID_CONSOLE2(con1, con2, format)            \
+  IIFORMAT_VALID_CONSOLE (con1, format);                       \
+  IIFORMAT_VALID_CONSOLE (con2, format);
+
+#define DEFINE_DEVICE_IIFORMAT(type, format)   \
+DECLARE_IMAGE_INSTANTIATOR_FORMAT(format);     \
 struct image_instantiator_methods *type##_##format##_image_instantiator_methods
 
-#define INITIALIZE_DEVICE_IIFORMAT(type, format)                       \
-do {                                                                   \
-  type##_##format##_image_instantiator_methods =                       \
-    xnew_and_zero (struct image_instantiator_methods);                 \
-  type##_##format##_image_instantiator_methods->symbol = Q##format;    \
-  type##_##format##_image_instantiator_methods->device = Q##type;      \
-  type##_##format##_image_instantiator_methods->keywords =             \
-    Dynarr_new (ii_keyword_entry);                                     \
-  add_entry_to_device_ii_format_list                                   \
-    (Q##type, Q##format, type##_##format##_image_instantiator_methods);        \
-  IIFORMAT_VALID_CONSOLE(type,format);                                 \
-  dumpstruct (&type##_##format##_image_instantiator_methods,           \
-              &iim_description);                                       \
+#define INITIALIZE_DEVICE_IIFORMAT(type, format)                               \
+do {                                                                           \
+  type##_##format##_image_instantiator_methods =                               \
+    xnew_and_zero (struct image_instantiator_methods);                         \
+  type##_##format##_image_instantiator_methods->symbol = Q##format;            \
+  type##_##format##_image_instantiator_methods->device = Q##type;              \
+  type##_##format##_image_instantiator_methods->keywords =                     \
+    Dynarr_new (ii_keyword_entry);                                             \
+  add_entry_to_device_ii_format_list                                           \
+    (Q##type, Q##format, type##_##format##_image_instantiator_methods);                \
+  IIFORMAT_VALID_CONSOLE(type,format);                                         \
+  dump_add_root_struct_ptr (&type##_##format##_image_instantiator_methods,     \
+                           &iim_description);                                  \
 } while (0)
 
 /* Declare that image-instantiator format FORMAT has method M; used in
@@ -264,6 +322,13 @@ do {                                                                       \
 #define IIFORMAT_HAS_SHARED_DEVMETHOD(type, format, m, fromformat) \
   (type##_##format##_image_instantiator_methods->m##_method = type##_##fromformat##_##m)
 
+#define IIFORMAT_INHERITS_DEVMETHOD(type, from, format, m) \
+  (type##_##format##_image_instantiator_methods->m##_method = from##_##format##_##m)
+#define IIFORMAT_INHERITS_SHARED_DEVMETHOD(type, from, format, m, fromformat) \
+  (type##_##format##_image_instantiator_methods->m##_method = from##_##fromformat##_##m)
+
+#define INSTANTIATOR_TYPE(inst) (XVECTOR_DATA ((inst))[0])
+
 struct image_instantiator_methods *
 decode_device_ii_format (Lisp_Object device, Lisp_Object format,
                         Error_behavior errb);
@@ -290,22 +355,34 @@ void check_valid_string (Lisp_Object data);
 void check_valid_int (Lisp_Object data);
 void check_valid_face (Lisp_Object data);
 void check_valid_vector (Lisp_Object data);
-void check_valid_item_list_1 (Lisp_Object items);
+void check_valid_item_list (Lisp_Object items);
 
-void initialize_subwindow_image_instance (struct Lisp_Image_Instance*);
+void initialize_subwindow_image_instance (Lisp_Image_Instance*);
 void subwindow_instantiate (Lisp_Object image_instance, Lisp_Object instantiator,
                            Lisp_Object pointer_fg, Lisp_Object pointer_bg,
                            int dest_mask, Lisp_Object domain);
-void widget_instantiate_1 (Lisp_Object image_instance, Lisp_Object instantiator,
-                          Lisp_Object pointer_fg, Lisp_Object pointer_bg,
-                          int dest_mask, Lisp_Object domain, int default_textheight,
-                          int default_pixheight, int default_textwidth);
+int subwindow_governing_domain (void);
+void widget_instantiate (Lisp_Object image_instance, Lisp_Object instantiator,
+                        Lisp_Object pointer_fg, Lisp_Object pointer_bg,
+                        int dest_mask, Lisp_Object domain);
+void image_instance_query_geometry (Lisp_Object image_instance,
+                                   int* width, int* height,
+                                   enum image_instance_geometry disp,
+                                   Lisp_Object domain);
+void image_instance_layout (Lisp_Object image_instance,
+                           int width, int height, int xoffset, int yoffset,
+                           Lisp_Object domain);
+int layout_layout (Lisp_Object image_instance,
+                  int width, int height, int xoffset, int yoffset,
+                  Lisp_Object domain);
+int invalidate_glyph_geometry_maybe (Lisp_Object glyph_or_ii, struct window* w);
+Lisp_Object make_image_instance_cache_hash_table (void);
 
 DECLARE_DOESNT_RETURN (incompatible_image_types (Lisp_Object instantiator,
                                                  int given_dest_mask,
                                                  int desired_dest_mask));
-DECLARE_DOESNT_RETURN (signal_image_error (CONST char *, Lisp_Object));
-DECLARE_DOESNT_RETURN (signal_image_error_2 (CONST char *, Lisp_Object, Lisp_Object));
+DECLARE_DOESNT_RETURN (signal_image_error (const char *, Lisp_Object));
+DECLARE_DOESNT_RETURN (signal_image_error_2 (const char *, Lisp_Object, Lisp_Object));
 
 /************************************************************************/
 /*                     Image Specifier Object                          */
@@ -341,14 +418,25 @@ struct image_specifier
 /*                     Image Instance Object                           */
 /************************************************************************/
 
-DECLARE_LRECORD (image_instance, struct Lisp_Image_Instance);
-#define XIMAGE_INSTANCE(x) \
-  XRECORD (x, image_instance, struct Lisp_Image_Instance)
+DECLARE_LRECORD (image_instance, Lisp_Image_Instance);
+#define XIMAGE_INSTANCE(x) XRECORD (x, image_instance, Lisp_Image_Instance)
 #define XSETIMAGE_INSTANCE(x, p) XSETRECORD (x, p, image_instance)
 #define IMAGE_INSTANCEP(x) RECORDP (x, image_instance)
 #define CHECK_IMAGE_INSTANCE(x) CHECK_RECORD (x, image_instance)
 #define CONCHECK_IMAGE_INSTANCE(x) CONCHECK_RECORD (x, image_instance)
 
+#ifdef ERROR_CHECK_GLYPHS
+void check_image_instance_structure (Lisp_Object instance);
+void check_window_subwindow_cache (struct window* w);
+#define ERROR_CHECK_IMAGE_INSTANCE(ii) \
+  check_image_instance_structure (ii)
+#define ERROR_CHECK_SUBWINDOW_CACHE(w) \
+  check_window_subwindow_cache (w)
+#else
+#define ERROR_CHECK_IMAGE_INSTANCE(ii)
+#define ERROR_CHECK_SUBWINDOW_CACHE(w)
+#endif
+
 enum image_instance_type
 {
   IMAGE_UNKNOWN,
@@ -358,8 +446,7 @@ enum image_instance_type
   IMAGE_COLOR_PIXMAP,
   IMAGE_POINTER,
   IMAGE_SUBWINDOW,
-  IMAGE_WIDGET,
-  IMAGE_LAYOUT
+  IMAGE_WIDGET
 };
 
 #define IMAGE_NOTHING_MASK (1 << 0)
@@ -369,7 +456,13 @@ enum image_instance_type
 #define IMAGE_POINTER_MASK (1 << 4)
 #define IMAGE_SUBWINDOW_MASK (1 << 5)
 #define IMAGE_WIDGET_MASK (1 << 6)
-#define IMAGE_LAYOUT_MASK (1 << 7)
+
+/* This depends on the fact that enums are assigned consecutive
+   integers starting at 0. (Remember that IMAGE_UNKNOWN is the
+   first enum.) I'm fairly sure this behavior is ANSI-mandated,
+   so there should be no portability problems here. */
+#define image_instance_type_to_mask(type) \
+  ((int) (1 << ((int) (type) - 1)))
 
 #define IMAGE_INSTANCE_TYPE_P(ii, type) \
 (IMAGE_INSTANCEP (ii) && XIMAGE_INSTANCE_TYPE (ii) == type)
@@ -388,17 +481,15 @@ enum image_instance_type
      IMAGE_INSTANCE_TYPE_P (ii, IMAGE_SUBWINDOW)
 #define WIDGET_IMAGE_INSTANCEP(ii) \
      IMAGE_INSTANCE_TYPE_P (ii, IMAGE_WIDGET)
-#define LAYOUT_IMAGE_INSTANCEP(ii) \
-     IMAGE_INSTANCE_TYPE_P (ii, IMAGE_LAYOUT)
 
-#define CHECK_NOTHING_IMAGE_INSTANCE(x) do {           \
-  CHECK_IMAGE_INSTANCE (x);                            \
+#define CHECK_NOTHING_IMAGE_INSTANCE(x) do {                   \
+  CHECK_IMAGE_INSTANCE (x);                                    \
   if (!NOTHING_IMAGE_INSTANCEP (x))                            \
     x = wrong_type_argument (Qnothing_image_instance_p, (x));  \
 } while (0)
 
-#define CHECK_TEXT_IMAGE_INSTANCE(x) do {              \
-  CHECK_IMAGE_INSTANCE (x);                            \
+#define CHECK_TEXT_IMAGE_INSTANCE(x) do {                      \
+  CHECK_IMAGE_INSTANCE (x);                                    \
   if (!TEXT_IMAGE_INSTANCEP (x))                               \
     x = wrong_type_argument (Qtext_image_instance_p, (x));     \
 } while (0)
@@ -409,55 +500,69 @@ enum image_instance_type
     x = wrong_type_argument (Qmono_pixmap_image_instance_p, (x));      \
 } while (0)
 
-#define CHECK_COLOR_PIXMAP_IMAGE_INSTANCE(x) do {              \
-  CHECK_IMAGE_INSTANCE (x);                                    \
+#define CHECK_COLOR_PIXMAP_IMAGE_INSTANCE(x) do {                      \
+  CHECK_IMAGE_INSTANCE (x);                                            \
   if (!COLOR_PIXMAP_IMAGE_INSTANCEP (x))                               \
     x = wrong_type_argument (Qcolor_pixmap_image_instance_p, (x));     \
 } while (0)
 
-#define CHECK_POINTER_IMAGE_INSTANCE(x) do {           \
-  CHECK_IMAGE_INSTANCE (x);                            \
+#define CHECK_POINTER_IMAGE_INSTANCE(x) do {                   \
+  CHECK_IMAGE_INSTANCE (x);                                    \
   if (!POINTER_IMAGE_INSTANCEP (x))                            \
     x = wrong_type_argument (Qpointer_image_instance_p, (x));  \
 } while (0)
 
-#define CHECK_SUBWINDOW_IMAGE_INSTANCE(x) do {         \
+#define CHECK_SUBWINDOW_IMAGE_INSTANCE(x) do {                 \
   CHECK_IMAGE_INSTANCE (x);                                    \
   if (!SUBWINDOW_IMAGE_INSTANCEP (x)                           \
       && !WIDGET_IMAGE_INSTANCEP (x))                          \
     x = wrong_type_argument (Qsubwindow_image_instance_p, (x));        \
 } while (0)
 
-#define CHECK_WIDGET_IMAGE_INSTANCE(x) do {            \
-  CHECK_IMAGE_INSTANCE (x);                            \
+#define CHECK_WIDGET_IMAGE_INSTANCE(x) do {                    \
+  CHECK_IMAGE_INSTANCE (x);                                    \
   if (!WIDGET_IMAGE_INSTANCEP (x))                             \
     x = wrong_type_argument (Qwidget_image_instance_p, (x));   \
 } while (0)
 
-#define CHECK_LAYOUT_IMAGE_INSTANCE(x) do {            \
-  CHECK_IMAGE_INSTANCE (x);                            \
-  if (!LAYOUT_IMAGE_INSTANCEP (x))                             \
-    x = wrong_type_argument (Qlayout_image_instance_p, (x));   \
-} while (0)
-
 struct Lisp_Image_Instance
 {
   struct lcrecord_header header;
-  Lisp_Object device;
+  Lisp_Object domain;          /* The domain in which we were cached. */
+  Lisp_Object device;          /* The device of the domain. Recorded
+                                  since the domain may get deleted
+                                  before us. */
   Lisp_Object name;
+  /* The glyph from which we were instantiated. This is a weak
+     reference. */
+  Lisp_Object parent;
+  /* The instantiator from which we were instantiated. */
+  Lisp_Object instantiator;
   enum image_instance_type type;
-  int x_offset, y_offset;      /* for layout purposes */
+  unsigned int x_offset, y_offset;     /* for layout purposes */
+  int width, height, margin_width;
+  unsigned long display_hash; /* Hash value representing the structure
+                                of the image_instance when it was
+                                last displayed. */
   unsigned int dirty : 1;
+  unsigned int size_changed : 1;
+  unsigned int text_changed : 1;
+  unsigned int layout_changed : 1;
+  unsigned int optimize_output : 1; /* For outputting layouts. */
+  unsigned int initialized : 1; /* When we're fully done. */
+  unsigned int wants_initial_focus : 1;
+
   union
   {
     struct
     {
+      unsigned int descent;
       Lisp_Object string;
     } text;
     struct
     {
-      int width, height, depth;
-      int slice, maxslice, timeout;
+      unsigned int depth;
+      unsigned int slice, maxslice, timeout;
       Lisp_Object hotspot_x, hotspot_y; /* integer or Qnil */
       Lisp_Object filename;     /* string or Qnil */
       Lisp_Object mask_filename; /* string or Qnil */
@@ -470,25 +575,35 @@ struct Lisp_Image_Instance
     } pixmap; /* used for pointers as well */
     struct
     {
-      Lisp_Object frame;
-      unsigned int width, height;
       void* subwindow;         /* specific devices can use this as necessary */
-      unsigned int being_displayed : 1;        /* used to detect when needs to be unmapped */
-      union
-      {
-       struct
-       {
-         Lisp_Object face; /* foreground and background colors */
-         Lisp_Object type;
-         Lisp_Object props;    /* properties */
-         Lisp_Object gui_item; /* a list of gui_items */
-       } widget;               /* widgets are subwindows */
-       struct
-       {
-         Lisp_Object children; /* managed children */
-         Lisp_Object border;   /* Style of enclosing border or text. */
-       } layout;
-      } s;
+      struct
+      {                                /* We need these so we can do without
+                                  subwindow_cachel */
+       unsigned int x, y;
+       unsigned int width, height;
+      } display_data;
+      unsigned int being_displayed : 1; /* used to detect when needs
+                                          to be unmapped */
+      unsigned int v_resize : 1;       /* Whether the vsize is allowed to change. */
+      unsigned int h_resize : 1;       /* Whether the hsize is allowed to change. */
+      unsigned int orientation : 1; /* Vertical or horizontal. */
+      unsigned int justification : 2; /* Left, right or center. */
+      /* Face for colors and font. We specify this here because we
+        want people to be able to put :face in the instantiator
+        spec. Using glyph-face is more inconvenient, although more
+        general. */
+      Lisp_Object face;
+      Lisp_Object type;
+      Lisp_Object props;       /* properties or border*/
+      Lisp_Object items;       /* a list of displayed gui_items */
+      Lisp_Object pending_items; /* gui_items that should be displayed */
+      Lisp_Object children;    /* a list of children */
+      Lisp_Object width;       /* dynamic width spec. */
+      Lisp_Object height;      /* dynamic height spec. */
+      /* Change flags to augment dirty. */
+      unsigned int face_changed : 1;
+      unsigned int items_changed : 1;
+      unsigned int action_occurred : 1;
     } subwindow;
   } u;
 
@@ -496,20 +611,73 @@ struct Lisp_Image_Instance
   void *data;
 };
 
+/* Layout bit-fields. */
+#define LAYOUT_HORIZONTAL      0
+#define LAYOUT_VERTICAL        1
+
+#define LAYOUT_JUSTIFY_LEFT 0
+#define LAYOUT_JUSTIFY_RIGHT 1
+#define LAYOUT_JUSTIFY_CENTER 2
+
+#define IMAGE_INSTANCE_HASH_DEPTH 0
+
+/* Accessor macros. */
+#define IMAGE_INSTANCE_DOMAIN(i) ((i)->domain)
+#define IMAGE_INSTANCE_DOMAIN_LIVE_P(i) (DOMAIN_LIVE_P ((i)->domain))
 #define IMAGE_INSTANCE_DEVICE(i) ((i)->device)
+#define IMAGE_INSTANCE_FRAME(i) (DOMAIN_FRAME ((i)->domain))
 #define IMAGE_INSTANCE_NAME(i) ((i)->name)
+#define IMAGE_INSTANCE_PARENT(i) ((i)->parent)
+#define IMAGE_INSTANCE_INSTANTIATOR(i) ((i)->instantiator)
+#define IMAGE_INSTANCE_GLYPH(i) (image_instance_parent_glyph(i))
 #define IMAGE_INSTANCE_TYPE(i) ((i)->type)
 #define IMAGE_INSTANCE_XOFFSET(i) ((i)->x_offset)
 #define IMAGE_INSTANCE_YOFFSET(i) ((i)->y_offset)
-#define IMAGE_INSTANCE_PIXMAP_TYPE_P(i)                                        \
- ((IMAGE_INSTANCE_TYPE (i) == IMAGE_MONO_PIXMAP)                       \
+#define IMAGE_INSTANCE_WIDTH(i) ((i)->width)
+#define IMAGE_INSTANCE_MARGIN_WIDTH(i) ((i)->margin_width)
+#define IMAGE_INSTANCE_HEIGHT(i) ((i)->height)
+#define IMAGE_INSTANCE_INITIALIZED(i) ((i)->initialized)
+#define IMAGE_INSTANCE_DISPLAY_HASH(i) ((i)->display_hash)
+#define IMAGE_INSTANCE_PIXMAP_TYPE_P(i)                        \
+ ((IMAGE_INSTANCE_TYPE (i) == IMAGE_MONO_PIXMAP)       \
   || (IMAGE_INSTANCE_TYPE (i) == IMAGE_COLOR_PIXMAP))
 #define IMAGE_INSTANCE_DIRTYP(i) ((i)->dirty)
-
+#define IMAGE_INSTANCE_NEEDS_LAYOUT(i) \
+  ((IMAGE_INSTANCE_DIRTYP (i) && IMAGE_INSTANCE_LAYOUT_CHANGED (i)) \
+   || (FRAMEP (IMAGE_INSTANCE_FRAME (i)) \
+       && XFRAME (IMAGE_INSTANCE_FRAME (i))->size_changed))
+#define IMAGE_INSTANCE_FACE(i) \
+  (GLYPHP (IMAGE_INSTANCE_GLYPH (i)) ? \
+   XGLYPH_FACE (IMAGE_INSTANCE_GLYPH (i)) : Qnil)
+#define IMAGE_INSTANCE_WANTS_INITIAL_FOCUS(i) ((i)->wants_initial_focus)
+
+/* Changed flags */
+#define IMAGE_INSTANCE_TEXT_CHANGED(i) ((i)->text_changed)
+#define IMAGE_INSTANCE_SIZE_CHANGED(i) ((i)->size_changed)
+#define IMAGE_INSTANCE_WIDGET_FACE_CHANGED(i) \
+  ((i)->u.subwindow.face_changed)
+#define IMAGE_INSTANCE_WIDGET_ITEMS_CHANGED(i) \
+  ((i)->u.subwindow.items_changed)
+#define IMAGE_INSTANCE_WIDGET_ACTION_OCCURRED(i) \
+  ((i)->u.subwindow.action_occurred)
+#define IMAGE_INSTANCE_LAYOUT_CHANGED(i) ((i)->layout_changed)
+#define IMAGE_INSTANCE_OPTIMIZE_OUTPUT(i) ((i)->optimize_output)
+
+/* Text properties */
 #define IMAGE_INSTANCE_TEXT_STRING(i) ((i)->u.text.string)
-
-#define IMAGE_INSTANCE_PIXMAP_WIDTH(i) ((i)->u.pixmap.width)
-#define IMAGE_INSTANCE_PIXMAP_HEIGHT(i) ((i)->u.pixmap.height)
+#define IMAGE_INSTANCE_TEXT_WIDTH(i) \
+  IMAGE_INSTANCE_WIDTH(i)
+#define IMAGE_INSTANCE_TEXT_HEIGHT(i) \
+  IMAGE_INSTANCE_HEIGHT(i)
+#define IMAGE_INSTANCE_TEXT_DESCENT(i) ((i)->u.text.descent)
+#define IMAGE_INSTANCE_TEXT_ASCENT(i) \
+  (IMAGE_INSTANCE_TEXT_HEIGHT(i) - IMAGE_INSTANCE_TEXT_DESCENT(i))
+
+/* Pixmap properties */
+#define IMAGE_INSTANCE_PIXMAP_WIDTH(i) \
+  IMAGE_INSTANCE_WIDTH(i)
+#define IMAGE_INSTANCE_PIXMAP_HEIGHT(i) \
+  IMAGE_INSTANCE_HEIGHT(i)
 #define IMAGE_INSTANCE_PIXMAP_DEPTH(i) ((i)->u.pixmap.depth)
 #define IMAGE_INSTANCE_PIXMAP_FILENAME(i) ((i)->u.pixmap.filename)
 #define IMAGE_INSTANCE_PIXMAP_MASK_FILENAME(i) ((i)->u.pixmap.mask_filename)
@@ -523,45 +691,106 @@ struct Lisp_Image_Instance
 #define IMAGE_INSTANCE_PIXMAP_MAXSLICE(i) ((i)->u.pixmap.maxslice)
 #define IMAGE_INSTANCE_PIXMAP_TIMEOUT(i) ((i)->u.pixmap.timeout)
 
-#define IMAGE_INSTANCE_SUBWINDOW_WIDTH(i) ((i)->u.subwindow.width)
-#define IMAGE_INSTANCE_SUBWINDOW_HEIGHT(i) ((i)->u.subwindow.height)
+/* Subwindow properties */
 #define IMAGE_INSTANCE_SUBWINDOW_ID(i) ((i)->u.subwindow.subwindow)
-#define IMAGE_INSTANCE_SUBWINDOW_FRAME(i) ((i)->u.subwindow.frame)
+/* Display data. */
+#define IMAGE_INSTANCE_DISPLAY_X(i) ((i)->u.subwindow.display_data.x)
+#define IMAGE_INSTANCE_DISPLAY_Y(i) ((i)->u.subwindow.display_data.y)
+#define IMAGE_INSTANCE_DISPLAY_WIDTH(i) \
+  ((i)->u.subwindow.display_data.width)
+#define IMAGE_INSTANCE_DISPLAY_HEIGHT(i) \
+  ((i)->u.subwindow.display_data.height)
 #define IMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP(i) \
 ((i)->u.subwindow.being_displayed)
-
+#define IMAGE_INSTANCE_SUBWINDOW_V_RESIZEP(i) \
+((i)->u.subwindow.v_resize)
+#define IMAGE_INSTANCE_SUBWINDOW_H_RESIZEP(i) \
+((i)->u.subwindow.h_resize)
+#define IMAGE_INSTANCE_SUBWINDOW_ORIENT(i) \
+((i)->u.subwindow.orientation)
+#define IMAGE_INSTANCE_SUBWINDOW_JUSTIFY(i) \
+((i)->u.subwindow.justification)
+#define IMAGE_INSTANCE_SUBWINDOW_FACE(i) \
+((i)->u.subwindow.face)
+
+/* Widget properties */
 #define IMAGE_INSTANCE_WIDGET_WIDTH(i) \
-  IMAGE_INSTANCE_SUBWINDOW_WIDTH(i)
+  IMAGE_INSTANCE_WIDTH(i)
 #define IMAGE_INSTANCE_WIDGET_HEIGHT(i) \
-  IMAGE_INSTANCE_SUBWINDOW_HEIGHT(i)
-#define IMAGE_INSTANCE_WIDGET_TYPE(i) ((i)->u.subwindow.s.widget.type)
-#define IMAGE_INSTANCE_WIDGET_PROPS(i) ((i)->u.subwindow.s.widget.props)
-#define IMAGE_INSTANCE_WIDGET_FACE(i) ((i)->u.subwindow.s.widget.face)
-#define IMAGE_INSTANCE_WIDGET_ITEMS(i) ((i)->u.subwindow.s.widget.gui_item)
-#define IMAGE_INSTANCE_WIDGET_ITEM(i) \
-(CONSP (IMAGE_INSTANCE_WIDGET_ITEMS (i)) ? \
-XCAR (IMAGE_INSTANCE_WIDGET_ITEMS (i)) : \
-  IMAGE_INSTANCE_WIDGET_ITEMS (i))
-#define IMAGE_INSTANCE_WIDGET_TEXT(i) XGUI_ITEM (IMAGE_INSTANCE_WIDGET_ITEM (i))->name
-
-#define IMAGE_INSTANCE_LAYOUT_CHILDREN(i) ((i)->u.subwindow.s.layout.children)
-#define IMAGE_INSTANCE_LAYOUT_BORDER(i) ((i)->u.subwindow.s.layout.border)
-
+  IMAGE_INSTANCE_HEIGHT(i)
+#define IMAGE_INSTANCE_WIDGET_WIDTH_SUBR(i) ((i)->u.subwindow.width)
+#define IMAGE_INSTANCE_WIDGET_HEIGHT_SUBR(i) ((i)->u.subwindow.height)
+#define IMAGE_INSTANCE_WIDGET_TYPE(i) ((i)->u.subwindow.type)
+#define IMAGE_INSTANCE_WIDGET_PROPS(i) ((i)->u.subwindow.props)
+#define SET_IMAGE_INSTANCE_WIDGET_FACE(i,f) \
+ ((i)->u.subwindow.face = f)
+#define IMAGE_INSTANCE_WIDGET_FACE(i)                          \
+  (!NILP ((i)->u.subwindow.face) ? (i)->u.subwindow.face :     \
+  !NILP (IMAGE_INSTANCE_FACE (i)) ? IMAGE_INSTANCE_FACE (i) :  \
+  Vwidget_face)
+#define IMAGE_INSTANCE_WIDGET_ITEMS(i) ((i)->u.subwindow.items)
+#define IMAGE_INSTANCE_WIDGET_PENDING_ITEMS(i) \
+  ((i)->u.subwindow.pending_items)
+#define IMAGE_INSTANCE_WIDGET_ITEM(i)          \
+  (CONSP (IMAGE_INSTANCE_WIDGET_ITEMS (i)) ?   \
+   XCAR (IMAGE_INSTANCE_WIDGET_ITEMS (i)) :    \
+   IMAGE_INSTANCE_WIDGET_ITEMS (i))
+#define IMAGE_INSTANCE_WIDGET_TEXT(i) \
+   XGUI_ITEM (IMAGE_INSTANCE_WIDGET_ITEM (i))->name
+
+/* Layout properties */
+#define IMAGE_INSTANCE_LAYOUT_CHILDREN(i) ((i)->u.subwindow.children)
+#define IMAGE_INSTANCE_LAYOUT_BORDER(i) ((i)->u.subwindow.props)
+
+#define XIMAGE_INSTANCE_DOMAIN(i) \
+  IMAGE_INSTANCE_DOMAIN (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_DOMAIN_LIVE_P(i) \
+  IMAGE_INSTANCE_DOMAIN_LIVE_P (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_DEVICE(i) \
   IMAGE_INSTANCE_DEVICE (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_FRAME(i) \
+  IMAGE_INSTANCE_FRAME (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_NAME(i) \
   IMAGE_INSTANCE_NAME (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_GLYPH(i) \
+  IMAGE_INSTANCE_GLYPH (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_PARENT(i) \
+  IMAGE_INSTANCE_PARENT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_INSTANTIATOR(i) \
+  IMAGE_INSTANCE_INSTANTIATOR (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_TYPE(i) \
   IMAGE_INSTANCE_TYPE (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_DISPLAY_HASH(i) \
+  IMAGE_INSTANCE_DISPLAY_HASH (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_XOFFSET(i) \
   IMAGE_INSTANCE_XOFFSET (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_YOFFSET(i) \
   IMAGE_INSTANCE_YOFFSET (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_DIRTYP(i) \
   IMAGE_INSTANCE_DIRTYP (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_NEEDS_LAYOUT(i) \
+  IMAGE_INSTANCE_NEEDS_LAYOUT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_WIDTH(i) \
+  IMAGE_INSTANCE_WIDTH (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_MARGIN_WIDTH(i) \
+  IMAGE_INSTANCE_MARGIN_WIDTH (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_HEIGHT(i) \
+  IMAGE_INSTANCE_HEIGHT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_INITIALIZED(i) \
+  IMAGE_INSTANCE_INITIALIZED (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_FACE(i) \
+  IMAGE_INSTANCE_FACE (XIMAGE_INSTANCE (i))
 
 #define XIMAGE_INSTANCE_TEXT_STRING(i) \
   IMAGE_INSTANCE_TEXT_STRING (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_TEXT_WIDTH(i) \
+  IMAGE_INSTANCE_TEXT_WIDTH (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_TEXT_HEIGHT(i) \
+  IMAGE_INSTANCE_TEXT_HEIGHT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_TEXT_ASCENT(i) \
+  IMAGE_INSTANCE_TEXT_ASCENT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_TEXT_DESCENT(i) \
+  IMAGE_INSTANCE_TEXT_DESCENT (XIMAGE_INSTANCE (i))
 
 #define XIMAGE_INSTANCE_PIXMAP_WIDTH(i) \
   IMAGE_INSTANCE_PIXMAP_WIDTH (XIMAGE_INSTANCE (i))
@@ -594,38 +823,61 @@ XCAR (IMAGE_INSTANCE_WIDGET_ITEMS (i)) : \
   IMAGE_INSTANCE_WIDGET_WIDTH (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_HEIGHT(i) \
   IMAGE_INSTANCE_WIDGET_HEIGHT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_WIDGET_WIDTH_SUBR(i) \
+  IMAGE_INSTANCE_WIDGET_WIDTH_SUBR (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_WIDGET_HEIGHT_SUBR(i) \
+  IMAGE_INSTANCE_WIDGET_HEIGHT_SUBR (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_TYPE(i) \
   IMAGE_INSTANCE_WIDGET_TYPE (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_PROPS(i) \
   IMAGE_INSTANCE_WIDGET_PROPS (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_FACE(i) \
   IMAGE_INSTANCE_WIDGET_FACE (XIMAGE_INSTANCE (i))
+#define XSET_IMAGE_INSTANCE_WIDGET_FACE(i) \
+  SET_IMAGE_INSTANCE_WIDGET_FACE (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_ITEM(i) \
   IMAGE_INSTANCE_WIDGET_ITEM (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_ITEMS(i) \
   IMAGE_INSTANCE_WIDGET_ITEMS (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_WIDGET_PENDING_ITEMS(i) \
+  IMAGE_INSTANCE_WIDGET_PENDING_ITEMS (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_WIDGET_TEXT(i) \
   IMAGE_INSTANCE_WIDGET_TEXT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_WIDGET_ACTION_OCCURRED(i) \
+  IMAGE_INSTANCE_WIDGET_ACTION_OCCURRED (XIMAGE_INSTANCE (i))
 
 #define XIMAGE_INSTANCE_LAYOUT_CHILDREN(i) \
   IMAGE_INSTANCE_LAYOUT_CHILDREN (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_LAYOUT_BORDER(i) \
   IMAGE_INSTANCE_LAYOUT_BORDER (XIMAGE_INSTANCE (i))
 
-#define XIMAGE_INSTANCE_SUBWINDOW_WIDTH(i) \
-  IMAGE_INSTANCE_SUBWINDOW_WIDTH (XIMAGE_INSTANCE (i))
-#define XIMAGE_INSTANCE_SUBWINDOW_HEIGHT(i) \
-  IMAGE_INSTANCE_SUBWINDOW_HEIGHT (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_SUBWINDOW_ID(i) \
   IMAGE_INSTANCE_SUBWINDOW_ID (XIMAGE_INSTANCE (i))
-#define XIMAGE_INSTANCE_SUBWINDOW_FRAME(i) \
-  IMAGE_INSTANCE_SUBWINDOW_FRAME (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_DISPLAY_X(i) \
+  IMAGE_INSTANCE_DISPLAY_X (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_DISPLAY_Y(i) \
+  IMAGE_INSTANCE_DISPLAY_Y (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_DISPLAY_WIDTH(i) \
+  IMAGE_INSTANCE_DISPLAY_WIDTH (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_DISPLAY_HEIGHT(i) \
+  IMAGE_INSTANCE_DISPLAY_HEIGHT (XIMAGE_INSTANCE (i))
 #define XIMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP(i) \
   IMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_SUBWINDOW_ORIENT(i) \
+  IMAGE_INSTANCE_SUBWINDOW_ORIENT (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_SUBWINDOW_JUSTIFY(i) \
+  IMAGE_INSTANCE_SUBWINDOW_JUSTIFY (XIMAGE_INSTANCE (i))
+#define XIMAGE_INSTANCE_SUBWINDOW_FACE(i) \
+  IMAGE_INSTANCE_SUBWINDOW_FACE (XIMAGE_INSTANCE (i))
 
 #define MARK_IMAGE_INSTANCE_CHANGED(i) \
   (IMAGE_INSTANCE_DIRTYP (i) = 1);
 
+Lisp_Object image_instance_device (Lisp_Object instance);
+Lisp_Object image_instance_frame (Lisp_Object instance);
+Lisp_Object image_instance_window (Lisp_Object instance);
+int image_instance_live_p (Lisp_Object instance);
+
 #ifdef HAVE_XPM
 Lisp_Object evaluate_xpm_color_symbols (void);
 Lisp_Object pixmap_to_lisp_data (Lisp_Object name, int ok_if_data_invalid);
@@ -633,7 +885,7 @@ Lisp_Object pixmap_to_lisp_data (Lisp_Object name, int ok_if_data_invalid);
 #ifdef HAVE_WINDOW_SYSTEM
 Lisp_Object bitmap_to_lisp_data (Lisp_Object name, int *xhot, int *yhot,
                                 int ok_if_data_invalid);
-int read_bitmap_data_from_file (CONST char *filename, unsigned int *width,
+int read_bitmap_data_from_file (const char *filename, unsigned int *width,
                                unsigned int *height, unsigned char **datap,
                                int *x_hot, int *y_hot);
 Lisp_Object xbm_mask_file_munging (Lisp_Object alist, Lisp_Object file,
@@ -665,7 +917,7 @@ struct Lisp_Glyph
   Lisp_Object baseline;                /* percent above baseline */
 
   Lisp_Object face;            /* if non-nil, face to use when displaying */
-  
+
   Lisp_Object plist;
   void (*after_change) (Lisp_Object glyph, Lisp_Object property,
                        Lisp_Object locale);
@@ -673,9 +925,10 @@ struct Lisp_Glyph
   unsigned int dirty : 1;      /* So that we can selectively
                                    redisplay changed glyphs. */
 };
+typedef struct Lisp_Glyph Lisp_Glyph;
 
-DECLARE_LRECORD (glyph, struct Lisp_Glyph);
-#define XGLYPH(x) XRECORD (x, glyph, struct Lisp_Glyph)
+DECLARE_LRECORD (glyph, Lisp_Glyph);
+#define XGLYPH(x) XRECORD (x, glyph, Lisp_Glyph)
 #define XSETGLYPH(x, p) XSETRECORD (x, p, glyph)
 #define GLYPHP(x) RECORDP (x, glyph)
 #define CHECK_GLYPH(x) CHECK_RECORD (x, glyph)
@@ -722,25 +975,17 @@ extern Lisp_Object Qtree_view, Qtab_control, Qprogress_gauge, Q_border;
 extern Lisp_Object Q_mask_file, Q_mask_data, Q_hotspot_x, Q_hotspot_y;
 extern Lisp_Object Q_foreground, Q_background, Q_face, Q_descriptor, Q_group;
 extern Lisp_Object Q_width, Q_height, Q_pixel_width, Q_pixel_height, Q_text;
-extern Lisp_Object Q_items, Q_properties, Q_image, Q_percent, Qimage_conversion_error;
-extern Lisp_Object Q_orientation;
+extern Lisp_Object Q_items, Q_properties, Q_image, Qimage_conversion_error;
+extern Lisp_Object Q_orientation, Q_margin_width;
 extern Lisp_Object Vcontinuation_glyph, Vcontrol_arrow_glyph, Vhscroll_glyph;
 extern Lisp_Object Vinvisible_text_glyph, Voctal_escape_glyph, Vtruncation_glyph;
 extern Lisp_Object Vxemacs_logo;
 
-unsigned short glyph_width (Lisp_Object glyph, Lisp_Object frame_face,
-                           face_index window_findex,
-                           Lisp_Object window);
-unsigned short glyph_ascent (Lisp_Object glyph,  Lisp_Object frame_face,
-                            face_index window_findex,
-                            Lisp_Object window);
-unsigned short glyph_descent (Lisp_Object glyph,
-                             Lisp_Object frame_face,
-                             face_index window_findex,
-                             Lisp_Object window);
-unsigned short glyph_height (Lisp_Object glyph,  Lisp_Object frame_face,
-                            face_index window_findex,
-                            Lisp_Object window);
+
+unsigned short glyph_width (Lisp_Object glyph, Lisp_Object domain);
+unsigned short glyph_ascent (Lisp_Object glyph, Lisp_Object domain);
+unsigned short glyph_descent (Lisp_Object glyph, Lisp_Object domain);
+unsigned short glyph_height (Lisp_Object glyph, Lisp_Object domain);
 Lisp_Object glyph_baseline (Lisp_Object glyph, Lisp_Object domain);
 Lisp_Object glyph_face (Lisp_Object glyph, Lisp_Object domain);
 int glyph_contrib_p (Lisp_Object glyph, Lisp_Object domain);
@@ -755,15 +1000,25 @@ Lisp_Object alist_to_tagged_vector (Lisp_Object tag, Lisp_Object alist);
 void string_instantiate (Lisp_Object image_instance, Lisp_Object instantiator,
                         Lisp_Object pointer_fg, Lisp_Object pointer_bg,
                         int dest_mask, Lisp_Object domain);
+int tab_control_order_only_changed (Lisp_Object image_instance);
 Lisp_Object allocate_glyph (enum glyph_type type,
                            void (*after_change) (Lisp_Object glyph,
                                                  Lisp_Object property,
                                                  Lisp_Object locale));
-Lisp_Object widget_face_font_info (Lisp_Object domain, Lisp_Object face,
-                                  int *height, int *width);
-void widget_text_to_pixel_conversion (Lisp_Object domain, Lisp_Object face,
-                                     int th, int tw,
-                                     int* height, int* width);
+Lisp_Object normalize_image_instantiator (Lisp_Object instantiator,
+                                         Lisp_Object contype,
+                                         Lisp_Object dest_mask);
+void glyph_query_geometry (Lisp_Object glyph_or_image, int* width, int* height,
+                          enum image_instance_geometry disp,
+                          Lisp_Object domain);
+void glyph_do_layout (Lisp_Object glyph_or_image, int width, int height,
+                     int xoffset, int yoffset,
+                     Lisp_Object domain);
+void query_string_geometry ( Lisp_Object string, Lisp_Object face,
+                            int* width, int* height, int* descent,
+                            Lisp_Object domain);
+Lisp_Object query_string_font (Lisp_Object string,
+                              Lisp_Object face, Lisp_Object domain);
 Lisp_Object add_glyph_animated_timeout (EMACS_INT tickms, Lisp_Object device);
 void disable_glyph_animated_timeout (int i);
 
@@ -796,18 +1051,55 @@ struct glyph_cachel
 #define OCT_ESC_GLYPH_INDEX    (glyph_index) 4
 #define INVIS_GLYPH_INDEX      (glyph_index) 5
 
-#define GLYPH_CACHEL(window, index)                    \
-  Dynarr_atp (window->glyph_cachels, index)
-#define GLYPH_CACHEL_GLYPH(window, index)              \
-  Dynarr_atp (window->glyph_cachels, index)->glyph
-#define GLYPH_CACHEL_WIDTH(window, index)              \
-  Dynarr_atp (window->glyph_cachels, index)->width
-#define GLYPH_CACHEL_ASCENT(window, index)             \
-  Dynarr_atp (window->glyph_cachels, index)->ascent
-#define GLYPH_CACHEL_DESCENT(window, index)            \
-  Dynarr_atp (window->glyph_cachels, index)->descent
-#define GLYPH_CACHEL_DIRTYP(window, index)             \
-  Dynarr_atp (window->glyph_cachels, index)->dirty
+#ifdef ERROR_CHECK_GLYPHS
+
+#include "window.h"
+
+INLINE_HEADER int
+GLYPH_CACHEL_WIDTH (struct window *window, int ind);
+INLINE_HEADER int
+GLYPH_CACHEL_WIDTH (struct window *window, int ind)
+{
+  int wid = Dynarr_atp (window->glyph_cachels, ind)->width;
+  assert (wid >= 0 && wid < 10000);
+  return wid;
+}
+INLINE_HEADER int
+GLYPH_CACHEL_ASCENT (struct window *window, int ind);
+INLINE_HEADER int
+GLYPH_CACHEL_ASCENT (struct window *window, int ind)
+{
+  int wid = Dynarr_atp (window->glyph_cachels, ind)->ascent;
+  assert (wid >= 0 && wid < 10000);
+  return wid;
+}
+INLINE_HEADER int
+GLYPH_CACHEL_DESCENT (struct window *window, int ind);
+INLINE_HEADER int
+GLYPH_CACHEL_DESCENT (struct window *window, int ind)
+{
+  int wid = Dynarr_atp (window->glyph_cachels, ind)->descent;
+  assert (wid >= 0 && wid < 10000);
+  return wid;
+}
+
+#else /* not ERROR_CHECK_GLYPHS */
+
+#define GLYPH_CACHEL_WIDTH(window, ind)                \
+  Dynarr_atp (window->glyph_cachels, ind)->width
+#define GLYPH_CACHEL_ASCENT(window, ind)               \
+  Dynarr_atp (window->glyph_cachels, ind)->ascent
+#define GLYPH_CACHEL_DESCENT(window, ind)              \
+  Dynarr_atp (window->glyph_cachels, ind)->descent
+
+#endif /* not ERROR_CHECK_GLYPHS */
+
+#define GLYPH_CACHEL(window, ind)                      \
+  Dynarr_atp (window->glyph_cachels, ind)
+#define GLYPH_CACHEL_GLYPH(window, ind)                \
+  Dynarr_atp (window->glyph_cachels, ind)->glyph
+#define GLYPH_CACHEL_DIRTYP(window, ind)               \
+  Dynarr_atp (window->glyph_cachels, ind)->dirty
 
 void mark_glyph_cachels (glyph_cachel_dynarr *elements);
 void mark_glyph_cachels_as_not_updated (struct window *w);
@@ -832,42 +1124,28 @@ void get_display_tables (struct window *, face_index,
  *                            Subwindow Object                              *
  ****************************************************************************/
 
-/* redisplay needs a per-frame cache of subwindows being displayed so
- * that we known when to unmap them */
-typedef struct subwindow_cachel subwindow_cachel;
-struct subwindow_cachel
-{
-  Lisp_Object subwindow;
-  int x, y;
-  int width, height;
-  unsigned int being_displayed : 1;
-  unsigned int updated : 1;
-};
-
-typedef struct
-{
-  Dynarr_declare (subwindow_cachel);
-} subwindow_cachel_dynarr;
-
-void mark_subwindow_cachels (subwindow_cachel_dynarr *elements);
-void mark_subwindow_cachels_as_not_updated (struct frame *f);
-void reset_subwindow_cachels (struct frame *f);
 void unmap_subwindow (Lisp_Object subwindow);
 void map_subwindow (Lisp_Object subwindow, int x, int y,
                    struct display_glyph_area *dga);
-void update_frame_subwindows (struct frame *f);
 int find_matching_subwindow (struct frame* f, int x, int y, int width, int height);
+void redisplay_widget (Lisp_Object widget);
+void update_widget_instances (Lisp_Object frame);
+void redisplay_subwindow (Lisp_Object subwindow);
+Lisp_Object image_instance_parent_glyph (struct Lisp_Image_Instance*);
+int image_instance_changed (Lisp_Object image);
+void free_frame_subwindow_instances (struct frame* f);
+void reset_frame_subwindow_instance_cache (struct frame* f);
+int unmap_subwindow_instance_cache_mapper (Lisp_Object key,
+                                          Lisp_Object value, void* finalize);
 
 struct expose_ignore
 {
-  int  x;
-  int  y;
-  int  width;
-  int  height;
+  unsigned int x, y;
+  unsigned int width, height;
   struct expose_ignore *next;
 };
 
 int check_for_ignored_expose (struct frame* f, int x, int y, int width, int height);
 extern int hold_ignored_expose_registration;
 
-#endif /* _XEMACS_GLYPHS_H_ */
+#endif /* INCLUDED_glyphs_h_ */