1 files changed, 82 insertions, 0 deletions
diff --git a/src/preproc/pic/output.h b/src/preproc/pic/output.h
new file mode 100644
index 0000000..f01e0a1
--- /dev/null
+++ b/src/preproc/pic/output.h
@@ -0,0 +1,82 @@
+// -*- C++ -*-
+/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
+     Written by James Clark (jjc@jclark.com)
+
+This file is part of groff.
+
+groff 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 3 of the License, or
+(at your option) any later version.
+
+groff 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 this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+struct line_type {
+  enum { invisible, solid, dotted, dashed } type;
+  double dash_width;
+  double thickness;		// the thickness is in points
+
+  line_type();
+};
+
+
+class output {
+protected:
+  char *args;
+  double desired_height;	// zero if no height specified
+  double desired_width;		// zero if no depth specified
+  double compute_scale(double, const position &, const position &);
+public:
+  output();
+  virtual ~output();
+  void set_desired_width_height(double wid, double ht);
+  void set_args(const char *);
+  virtual void start_picture(double sc, const position &ll, const position &ur) = 0;
+  virtual void finish_picture() = 0;
+  virtual void circle(const position &, double rad,
+		      const line_type &, double) = 0;
+  virtual void text(const position &, text_piece *, int, double) = 0;
+  virtual void line(const position &, const position *, int n,
+		    const line_type &) = 0;
+  virtual void polygon(const position *, int n,
+		       const line_type &, double) = 0;
+  virtual void spline(const position &, const position *, int n,
+		      const line_type &) = 0;
+  virtual void arc(const position &, const position &, const position &,
+		   const line_type &) = 0;
+  virtual void ellipse(const position &, const distance &,
+		       const line_type &, double) = 0;
+  virtual void rounded_box(const position &, const distance &, double,
+			   const line_type &, double, char *) = 0;
+  virtual void command(const char *, const char *, int) = 0;
+  virtual void set_location(const char *, int) {}
+  virtual void set_color(char *, char *) = 0;
+  virtual void reset_color() = 0;
+  virtual char *get_last_filled() = 0;
+  virtual char *get_outline_color() = 0;
+  virtual int supports_filled_polygons();
+  virtual void begin_block(const position &ll, const position &ur);
+  virtual void end_block();
+};
+
+extern output *out;
+
+/* #define FIG_SUPPORT 1 */
+#define TEX_SUPPORT 1
+
+output *make_troff_output();
+
+#ifdef TEX_SUPPORT
+output *make_tex_output();
+output *make_tpic_output();
+#endif /* TEX_SUPPORT */
+
+#ifdef FIG_SUPPORT
+output *make_fig_output();
+#endif /* FIG_SUPPORT */