1 files changed, 88 insertions, 0 deletions
diff --git a/pcl/pgmisc.h b/pcl/pgmisc.h
new file mode 100644
index 000000000..f86c08f2b
--- /dev/null
+++ b/pcl/pgmisc.h
@@ -0,0 +1,88 @@
+/* Portions Copyright (C) 2001 artofcode LLC.
+   Portions Copyright (C) 1996, 2001 Artifex Software Inc.
+   Portions Copyright (C) 1988, 2000 Aladdin Enterprises.
+   This software is based in part on the work of the Independent JPEG Group.
+   All Rights Reserved.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/ or
+   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
+   San Rafael, CA  94903, (415)492-9861, for further information. */
+/*$Id$ */
+
+/* pgmisc.h */
+/* definitions for HP-GL/2 lost mode and error handling routines. */
+
+#ifndef pgmisc_INCLUDED
+#  define pgmisc_INCLUDED
+
+void hpgl_set_lost_mode(hpgl_state_t *pgls, hpgl_lost_mode_t lost_mode);
+/* get the current setting of the edge pen set by CF, NB this should
+   be in a different header file */
+int32 hpgl_get_character_edge_pen(hpgl_state_t *pgls);
+
+/* macro to see if we are in lost mode */
+#define hpgl_lost (pgls->g.lost_mode == hpgl_lost_mode_entered)
+
+/* a macro that calls a function and returns an error code if the code
+   returned is less than 0.  Most of the hpgl and gs functions return
+   if the calling function is less than 0 so this avoids cluttering up
+   the code with the if statement and debug code. */
+
+#ifdef DEBUG
+
+void hpgl_error(void);
+int hpgl_print_error(const gs_memory_t *mem, 
+		     const char *function, const char *file, int line, int code);
+
+# ifdef __GNUC__
+#  define hpgl_call_note_error(mem, code)\
+     hpgl_print_error(mem, __FUNCTION__, __FILE__, __LINE__, code)
+# else
+#  define hpgl_call_note_error(mem, code)\
+     hpgl_print_error(mem, (const char *)0, __FILE__, __LINE__, code)
+# endif
+
+#else				/* !DEBUG */
+
+#define hpgl_call_note_error(mem, code) (code)
+
+#endif
+
+/* We use the do ... while(0) in order to make the call be a statement */
+/* syntactically. */
+
+#define hpgl_call_and_check(mem, call, if_check_else)\
+do {						\
+  int code; 					\
+  if ((code = (call)) < 0)			\
+    { if_check_else()				\
+        return hpgl_call_note_error(mem, code);	\
+    }						\
+} while (0)
+
+/* Ordinary function calls */
+
+#define hpgl_no_check() /* */
+
+#define hpgl_call(call)\
+  hpgl_call_and_check(pgls->memory, call, hpgl_no_check)
+
+#define hpgl_call_mem(mem, call)\
+  hpgl_call_and_check(mem, call, hpgl_no_check)
+
+/* Function calls that can set LOST mode */
+
+#define hpgl_limitcheck_set_lost()\
+  if ( code == gs_error_limitcheck )\
+    hpgl_set_lost_mode(pgls, hpgl_lost_mode_entered);\
+  else
+
+#define hpgl_call_check_lost(call)\
+  hpgl_call_and_check(pgls->memory, call, hpgl_limitcheck_set_lost)
+
+/* needs a better home */
+gs_point hpgl_current_char_scale(const hpgl_state_t *pgls);
+
+#endif                       /* pgmisc_INCLUDED */