--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/device-impl.h	Thu Jun 20 21:19:10 2002 +0000
@@ -0,0 +1,331 @@
+/* Define device-object for XEmacs.
+   Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
+   Copyright (C) 1995, 2002 Ben Wing
+   Copyright (C) 1995 Sun Microsystems
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not in FSF. */
+
+/* Written by Chuck Thompson and Ben Wing. */
+
+#ifndef INCLUDED_device_impl_h_
+#define INCLUDED_device_impl_h_
+
+#include "console-impl.h"
+#include "device.h"
+
+/* This should really be in redisplay.h but by putting it here we
+   won't have to ensure that redisplay.h is always included before
+   this file. */
+struct pixel_to_glyph_translation_cache
+{
+  unsigned int valid :1;
+  struct frame *frame;
+  int low_x_coord, high_x_coord, col, obj_x;
+  int low_y_coord, high_y_coord, row, obj_y;
+  struct window *w;
+  Charbpos charpos;
+  Charbpos closest;
+  Charcount modeline_closest;
+  Lisp_Object obj1, obj2;
+  int retval;
+};
+
+/* Less public: */
+#define DEVICE_TYPE_NAME(d) ((d)->devmeths->name)
+#define DEVICE_IMPL_FLAG(d, f) CONMETH_IMPL_FLAG ((d)->devmeths, (f))
+#define DEVICE_SPECIFIC_FRAME_PROPS(d) \
+  ((d)->devmeths->device_specific_frame_props)
+
+/* More public: */
+#define DEVICE_TYPE(d) ((d)->devmeths->symbol)
+#define XDEVICE_TYPE(d) DEVICE_TYPE (XDEVICE (d))
+
+/******** Accessing / calling a device method *********/
+
+#define HAS_DEVMETH_P(d, m) HAS_CONTYPE_METH_P ((d)->devmeths, m)
+#define DEVMETH(d, m, args) CONTYPE_METH ((d)->devmeths, m, args)
+#define MAYBE_DEVMETH(d, m, args) MAYBE_CONTYPE_METH ((d)->devmeths, m, args)
+#define DEVMETH_OR_GIVEN(d, m, args, given) \
+  CONTYPE_METH_OR_GIVEN((d)->devmeths, m, args, given)
+#define MAYBE_INT_DEVMETH(d, m, args) \
+  MAYBE_INT_CONTYPE_METH ((d)->devmeths, m, args)
+#define MAYBE_LISP_DEVMETH(d, m, args) \
+  MAYBE_LISP_CONTYPE_METH ((d)->devmeths, m, args)
+
+struct device
+{
+  struct lcrecord_header header;
+
+  /* Methods for this device's console.  This can also be retrieved
+     through device->console, but it's faster this way. */
+  struct console_methods *devmeths;
+
+  /* A structure of auxiliary data specific to the device type.
+     struct x_device is used for X window frames; defined in console-x.h
+     struct tty_device is used to TTY's; defined in console-tty.h */
+  void *device_data;
+
+  /* redisplay flags */
+  unsigned int buffers_changed :1;
+  unsigned int clip_changed :1;
+  unsigned int extents_changed :1;
+  unsigned int faces_changed :1;
+  unsigned int frame_changed :1;
+  unsigned int glyphs_changed :1;
+  unsigned int subwindows_changed :1;
+  unsigned int subwindows_state_changed :1;
+  unsigned int icon_changed :1;
+  unsigned int menubar_changed :1;
+  unsigned int modeline_changed :1;
+  unsigned int point_changed :1;
+  unsigned int size_changed :1;
+  unsigned int gutter_changed :1;
+  unsigned int toolbar_changed :1;
+  unsigned int windows_changed :1;
+  unsigned int windows_structure_changed :1;
+
+  unsigned int locked :1;
+
+  /* Cache information about last pixel position translated to a
+     glyph.  The law of locality applies very heavily here so caching
+     the value leads to a significant win.  At the moment this is
+     really X specific but once we have generic mouse support it won't
+     be. */
+  struct pixel_to_glyph_translation_cache pixel_to_glyph_cache;
+
+  /* Output baud rate of device; used for redisplay decisions.  */
+  int baud_rate;
+
+  /* sound flags */
+  unsigned int on_console_p :1;
+  unsigned int connected_to_nas_p :1;
+
+#define MARKED_SLOT(x) Lisp_Object x
+#include "devslots.h"
+
+  /* File descriptors for input and output.  Much of the time
+     (but not always) these will be the same.  For an X device,
+     these both hold the file descriptor of the socket used
+     to communicate with the X server.  For a TTY device, these
+     may or may not be the same and point to the terminal that
+     is used for I/O. */
+  int infd, outfd;
+
+  /* infd and outfd are moved outside HAVE_UNIXOID_EVENT_LOOP conditionals,
+     because Win32, presumably the first port which does not use select()
+     polling, DOES have handles for a console device. -- kkm */
+
+#ifdef HAVE_UNIXOID_EVENT_LOOP
+  /* holds some data necessary for SIGIO control.  Perhaps this should
+     be inside of device_data; but it is used for both TTY's and X
+     device.  Perhaps it should be conditionalized on SIGIO; but
+     this requires including syssignal.h. */
+  int old_fcntl_owner;
+#endif
+};
+
+/* Redefine basic properties more efficiently */
+
+#undef DEVICE_LIVE_P
+#define DEVICE_LIVE_P(d) (!EQ (DEVICE_TYPE (d), Qdead))
+#undef DEVICE_CONSOLE
+#define DEVICE_CONSOLE(d) ((d)->console)
+#undef DEVICE_FRAME_LIST
+#define DEVICE_FRAME_LIST(d) ((d)->frame_list)
+
+#define DEVICE_TYPE_P(d, type)	EQ (DEVICE_TYPE (d), Q##type)
+
+#ifdef ERROR_CHECK_TYPES
+DECLARE_INLINE_HEADER (
+struct device *
+error_check_device_type (struct device *d, Lisp_Object sym)
+)
+{
+  assert (EQ (DEVICE_TYPE (d), sym));
+  return d;
+}
+# define DEVICE_TYPE_DATA(d, type)			\
+  ((struct type##_device *) error_check_device_type (d, Q##type)->device_data)
+#else
+# define DEVICE_TYPE_DATA(d, type)			\
+  ((struct type##_device *) (d)->device_data)
+#endif
+
+#define CHECK_DEVICE_TYPE(x, type)			\
+  do {							\
+    CHECK_DEVICE (x);					\
+    if (!(DEVICEP (x) && DEVICE_TYPE_P (XDEVICE (x),	\
+					 type)))	\
+      dead_wrong_type_argument				\
+	(type##_console_methods->predicate_symbol, x);	\
+  } while (0)
+#define CONCHECK_DEVICE_TYPE(x, type)			\
+  do {							\
+    CONCHECK_DEVICE (x);				\
+    if (!(DEVICEP (x) && DEVICE_TYPE_P (XDEVICE (x),	\
+					 type)))	\
+      x = wrong_type_argument				\
+	(type##_console_methods->predicate_symbol, x);	\
+  } while (0)
+
+#define DEVICE_DISPLAY_P(dev)				\
+  (DEVICE_LIVE_P (dev) &&				\
+    !DEVICE_IMPL_FLAG (dev, XDEVIMPF_IS_A_PRINTER))
+
+#define CHECK_DISPLAY_DEVICE(dev)			\
+  do {							\
+    CHECK_DEVICE (dev);					\
+    if (!(DEVICEP (dev)					\
+          && DEVICE_DISPLAY_P (XDEVICE (dev))))		\
+      dead_wrong_type_argument (Qdisplay, dev);		\
+  } while (0)
+
+#define CONCHECK_DISPLAY_DEVICE(dev)			\
+  do {							\
+    CONCHECK_DEVICE (dev);				\
+    if (!(DEVICEP (dev)					\
+          && DEVICE_DISPLAY_P (XDEVICE (dev))))		\
+      wrong_type_argument (Qdisplay, dev);		\
+  } while (0)
+
+#define DEVICE_PRINTER_P(dev)				\
+  (DEVICE_LIVE_P (dev) && !DEVICE_DISPLAY_P (dev))
+
+#define CHECK_PRINTER_DEVICE(dev)			\
+  do {							\
+    CHECK_DEVICE (dev);					\
+    if (!(DEVICEP (dev)					\
+          && DEVICE_PRINTER_P (XDEVICE (dev))))		\
+      dead_wrong_type_argument (Qprinter, dev);		\
+  } while (0)
+
+#define CONCHECK_PRINTER_DEVICE(dev)			\
+  do {							\
+    CONCHECK_DEVICE (dev);				\
+    if (!(DEVICEP (dev)					\
+          && DEVICE_PRINTER_P (XDEVICE (dev))))		\
+      wrong_type_argument (Qprinter, dev);		\
+  } while (0)
+
+/* #### These should be in the device-*.h files but there are
+   too many places where the abstraction is broken.  Need to
+   fix. */
+
+#define DEVICE_X_P(dev) CONSOLE_TYPESYM_X_P (DEVICE_TYPE (dev))
+#define CHECK_X_DEVICE(z) CHECK_DEVICE_TYPE (z, x)
+#define CONCHECK_X_DEVICE(z) CONCHECK_DEVICE_TYPE (z, x)
+
+#define DEVICE_GTK_P(dev) CONSOLE_TYPESYM_GTK_P (DEVICE_TYPE (dev))
+#define CHECK_GTK_DEVICE(z) CHECK_DEVICE_TYPE (z, gtk)
+#define CONCHECK_GTK_DEVICE(z) CONCHECK_DEVICE_TYPE (z, gtk)
+
+#define DEVICE_MSWINDOWS_P(dev) CONSOLE_TYPESYM_MSWINDOWS_P (DEVICE_TYPE (dev))
+#define CHECK_MSWINDOWS_DEVICE(z) CHECK_DEVICE_TYPE (z, mswindows)
+#define CONCHECK_MSWINDOWS_DEVICE(z) CONCHECK_DEVICE_TYPE (z, mswindows)
+
+#define DEVICE_TTY_P(dev) CONSOLE_TYPESYM_TTY_P (DEVICE_TYPE (dev))
+#define CHECK_TTY_DEVICE(z) CHECK_DEVICE_TYPE (z, tty)
+#define CONCHECK_TTY_DEVICE(z) CONCHECK_DEVICE_TYPE (z, tty)
+
+#define DEVICE_STREAM_P(dev) CONSOLE_TYPESYM_STREAM_P (DEVICE_TYPE (dev))
+#define CHECK_STREAM_DEVICE(z) CHECK_DEVICE_TYPE (z, stream)
+#define CONCHECK_STREAM_DEVICE(z) CONCHECK_DEVICE_TYPE (z, stream)
+
+#define DEVICE_WIN_P(dev) CONSOLE_TYPESYM_WIN_P (DEVICE_TYPE (dev))
+
+#define DEVICE_REDISPLAY_INFO(d) ((d)->redisplay_info)
+
+#define DEVICE_NAME(d) ((d)->name)
+#define DEVICE_CLASS(d) ((d)->device_class)
+/* Catch people attempting to set this. */
+#define DEVICE_SELECTED_FRAME(d) NON_LVALUE ((d)->selected_frame)
+#define DEVICE_FRAME_WITH_FOCUS_REAL(d) ((d)->frame_with_focus_real)
+#define DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS(d) ((d)->frame_with_focus_for_hooks)
+#define DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS(d)			\
+  ((d)->frame_that_ought_to_have_focus)
+#define DEVICE_USER_DEFINED_TAGS(d) ((d)->user_defined_tags)
+#define DEVICE_CONNECTION(d) ((d)->connection)
+#define DEVICE_CANON_CONNECTION(d) ((d)->canon_connection)
+#define DEVICE_BAUD_RATE(d) ((d)->baud_rate)
+#define DEVICE_INFD(d) ((d)->infd)
+#define DEVICE_OUTFD(d) ((d)->outfd)
+#define DEVICE_OLD_FCNTL_OWNER(d) ((d)->old_fcntl_owner)
+#define DEVICE_ON_CONSOLE_P(d) ((d)->on_console_p)
+#define DEVICE_CONNECTED_TO_NAS_P(d) ((d)->connected_to_nas_p)
+
+#define LOCK_DEVICE(d) ((void) ((d)->locked = 1))
+#define UNLOCK_DEVICE(d) ((void) ((d)->locked = 0))
+
+#define INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE(d)			\
+  ((void) ((d)->pixel_to_glyph_cache.valid = 0))
+
+#define INVALIDATE_PIXEL_TO_GLYPH_CACHE do {					\
+  Lisp_Object IPTGC_devcons, IPTGC_concons;					\
+  DEVICE_LOOP_NO_BREAK (IPTGC_devcons, IPTGC_concons)				\
+    INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE (XDEVICE (XCAR (IPTGC_devcons)));	\
+} while (0)
+
+#define MARK_DEVICE_FACES_CHANGED(d)			\
+  ((void) (faces_changed = (d)->faces_changed = 1))
+
+#define MARK_DEVICE_GLYPHS_CHANGED(d)			\
+  ((void) (glyphs_changed = (d)->glyphs_changed = 1))
+
+#define MARK_DEVICE_SUBWINDOWS_CHANGED(d)			\
+  ((void) (subwindows_changed = (d)->subwindows_changed = 1))
+
+#define MARK_DEVICE_SUBWINDOWS_STATE_CHANGED(d)		\
+  ((void) (subwindows_state_changed = (d)->subwindows_state_changed = 1))
+
+#define MARK_DEVICE_TOOLBARS_CHANGED(d)			\
+  ((void) (toolbar_changed = (d)->toolbar_changed = 1))
+
+#define MARK_DEVICE_GUTTERS_CHANGED(d)		\
+  ((void) (gutter_changed = (d)->gutter_changed = 1))
+
+#define MARK_DEVICE_SIZE_CHANGED(d)			\
+  ((void) (size_changed = (d)->size_changed = 1))
+
+#define MARK_DEVICE_FRAMES_FACES_CHANGED(d) do {	\
+  struct device *mdffc_d = (d);				\
+  Lisp_Object frmcons;					\
+  DEVICE_FRAME_LOOP (frmcons, mdffc_d)			\
+    XFRAME (XCAR (frmcons))->faces_changed = 1;		\
+  MARK_DEVICE_FACES_CHANGED (mdffc_d);			\
+} while (0)
+
+#define MARK_DEVICE_FRAMES_GLYPHS_CHANGED(d) do {	\
+  struct device *mdffc_d = (d);				\
+  Lisp_Object frmcons;					\
+  DEVICE_FRAME_LOOP (frmcons, mdffc_d)			\
+    XFRAME (XCAR (frmcons))->glyphs_changed = 1;		\
+  MARK_DEVICE_GLYPHS_CHANGED (mdffc_d);		\
+} while (0)
+
+#define MARK_DEVICE_FRAME_CHANGED(d)			\
+  ((void) (frame_changed = (d)->frame_changed = 1))
+
+#define MARK_DEVICE_WINDOWS_CHANGED(d)			\
+  ((void) (windows_changed = (d)->windows_changed = 1))
+
+#define MARK_DEVICE_WINDOWS_STRUCTURE_CHANGED(d)	\
+  ((void) (windows_structure_changed = (d)->windows_structure_changed = 1))
+
+#endif /* INCLUDED_device_impl_h_ */