From fbdab9d36b346a007b236e5d2e7d961722778fd3 Mon Sep 17 00:00:00 2001
From: Johannes Hofmann <johannes.hofmann@gmx.de>
Date: Fri, 9 Jul 2004 14:13:35 +0000
Subject: initial version of postscript handling module.
initial version of postscript handling module.
---
src/Postscript.H | 83 +++++++++++++++++++++
src/Postscript.cxx | 212 +++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 295 insertions(+)
create mode 100644 src/Postscript.H
create mode 100644 src/Postscript.cxx
(limited to 'src')
diff --git a/src/Postscript.H b/src/Postscript.H
new file mode 100644
index 0000000..13beb4e
--- /dev/null
+++ b/src/Postscript.H
@@ -0,0 +1,83 @@
+//
+// "$Id: Postscript.H,v 1.1 2004/07/09 16:13:35 hofmann Exp $"
+//
+// X11 header file for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 2004 by Johannes Hofmann
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+
+#ifndef POSTSCRIPT_H
+#define POSTSCRIPT_H
+
+#include "PSEditWidget.H"
+
+
+class PSParser {
+ protected:
+ PSEditWidget *pse;
+ int page;
+
+ public:
+ PSParser(PSEditWidget *p);
+ virtual int parse(char *line);
+};
+
+class PSParser_1 : public PSParser {
+ public:
+ PSParser_1(PSEditWidget *p);
+ int parse(char *line);
+};
+
+class PSParser_2 : public PSParser {
+ public:
+ PSParser_2(PSEditWidget *p);
+ int parse(char *line);
+};
+
+class PSWriter {
+ protected:
+ PSEditWidget *pse;
+ void write_string(FILE *out, char *s);
+ int write_text(FILE *out, PSText *t);
+ virtual char *ps_header();
+ virtual char *ps_trailer();
+
+ public:
+ PSWriter(PSEditWidget *p);
+ int write(FILE *in, FILE *out);
+};
+
+class PSLevel1Writer : public PSWriter {
+ protected:
+ char *ps_header();
+ char *ps_trailer();
+ public:
+ PSLevel1Writer(PSEditWidget *p);
+};
+
+class PSLevel2Writer : public PSWriter {
+ protected:
+ char *ps_header();
+ char *ps_trailer();
+ public:
+ PSLevel2Writer(PSEditWidget *p);
+};
+
+
+
+#endif
diff --git a/src/Postscript.cxx b/src/Postscript.cxx
new file mode 100644
index 0000000..90d7b8c
--- /dev/null
+++ b/src/Postscript.cxx
@@ -0,0 +1,212 @@
+//
+// "$Id: Postscript.cxx,v 1.1 2004/07/09 16:13:35 hofmann Exp $"
+//
+// PSEditWidget routines.
+//
+// Copyright 2004 by Johannes Hofmann
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+
+#include "Postscript.H"
+#define PS_POS_FORMAT "newpath %d %d moveto %% PSEditWidget\n"
+#define PS_TEXT_FORMAT "(%s) show %% PSEditWidget\n"
+#define PS_FONT_SIZE_FORMAT "/HelveticaNeue-Roman findfont %d scalefont setfont %% PSEditWidget\n"
+#define PS_GLYPH_FORMAT "/%s glyphshow %% PSEditWidget\n"
+
+static struct {
+ const char *glyph;
+ const char *c;
+} glyph_char[] = {
+ {"adieresis", "�"},
+ {"Adieresis", "�"},
+ {"odieresis", "�"},
+ {"Odieresis", "�"},
+ {"udieresis", "�"},
+ {"Udieresis", "�"},
+ {"germandbls", "�"},
+ {"parenleft", "("},
+ {"parenright", ")"},
+ {"backslash", "\\"},
+ {NULL, NULL}};
+
+static const char * glyph_to_char(char *glyph) {
+ int i=0;
+
+ while(glyph_char[i].glyph != NULL) {
+ if (strcmp(glyph_char[i].glyph, glyph) == 0) {
+ return glyph_char[i].c;
+ }
+ i++;
+ }
+
+ return NULL;
+}
+
+static const char * char_to_glyph(char *c) {
+ int i=0;
+
+ while(glyph_char[i].glyph != NULL) {
+ if (strncmp(glyph_char[i].c, c, 1) == 0) {
+ return glyph_char[i].glyph;
+ }
+ i++;
+ }
+
+ return NULL;
+}
+
+
+//
+// Postscript parser methods
+//
+
+
+PSParser::PSParser(PSEditWidget *p) {
+ pse = p;
+}
+
+PSParser_1::PSParser_1(PSEditWidget *p) : PSParser(p) {
+ page = 1;
+}
+
+int PSParser_1::parse(char *line) {
+ int x1, y1, size;
+ char *s, *e, glyph[1024];
+
+ if (strcmp(line, "showpage\n") == 0) {
+ page++;
+ }
+
+ if (strstr(line, "% PSEditWidget")) {
+ if (sscanf(line, PS_FONT_SIZE_FORMAT, &size) == 1) {
+ pse->set_cur_size(size);
+ return 1; // line was recognized
+ } else if (sscanf(line, PS_POS_FORMAT, &x1, &y1) == 2) {
+ pse->new_text(pse->ps_to_display_x(x1), pse->ps_to_display_y(y1),
+ "", page);
+ return 1;
+ } else if (sscanf(line, PS_GLYPH_FORMAT, glyph) == 1) {
+ fprintf(stderr, "GLYPH %s\n", glyph);
+ pse->append_text(glyph_to_char(glyph));
+ return 1;
+ } else if ((s = strchr(line, '(')) &&
+ (e = strrchr(line, ')'))) {
+ *e = '\0';
+ s++;
+ pse->append_text(s);
+ return 1;
+ }
+ return 2; // line should be removed, but passed to other parsers
+ } else {
+ return 0; // line not recognized
+ }
+}
+
+PSParser_2::PSParser_2(PSEditWidget *p) : PSParser(p) {
+ page = 1;
+}
+
+int PSParser_2::parse(char *line) {
+ return 0; // line not recognized
+}
+
+
+
+
+
+//
+// Postscript writer methods
+//
+
+
+PSWriter::PSWriter(PSEditWidget *p) {
+ pse = p;
+}
+
+int PSWriter::write(FILE *in, FILE *out) {
+ char linebuf[1024];
+ int done=0, page = 1;
+
+ while (fgets(linebuf, 1024, in) != NULL) {
+ if (!done && strncmp(linebuf, "%%EndSetup", 10) == 0) {
+ done++;
+
+ fprintf(out, ps_header());
+
+ for (int i=1;i<pse->get_max_pages();i++) {
+ write_text(out, pse->get_text(i));
+ }
+
+ fprintf(out, ps_trailer());
+ }
+
+ fprintf(out, "%s", linebuf);
+
+ if (strncmp(linebuf, "%%Page:", 7) == 0) {
+ fprintf(out, "/PSEditWidgetPageCount %d def %% PSEditWidget\n", page++);
+ }
+ }
+}
+
+void PSWriter::write_string(FILE *out, char *s) {
+ const char *glyph;
+
+ if (strlen(s) == 0) {
+ return;
+ } else if ((glyph = char_to_glyph(s)) != NULL) {
+ fprintf(out, PS_GLYPH_FORMAT, glyph);
+ write_string(out, &(s[1]));
+ return;
+ } else {
+ for(int i=0; i<strlen(s); i++) {
+ if ((glyph = char_to_glyph(&(s[i]))) != NULL) {
+ char *s1 = strdup(s);
+ s1[i] = '\0';
+ fprintf(out, PS_TEXT_FORMAT, s1);
+ free(s1);
+ write_string(out, &(s[i]));
+ return;
+ }
+ }
+ fprintf(out, PS_TEXT_FORMAT, s);
+ }
+ return;
+}
+
+int PSWriter::write_text(FILE *out, PSText *t) {
+ char *s;
+
+ if (!t) {
+ return 0;
+ }
+
+ s = t->get_text();
+
+ if (strcmp(s, "") != 0) {
+ fprintf(out, PS_FONT_SIZE_FORMAT, t->get_size());
+ fprintf(out, PS_POS_FORMAT,
+ pse->ps_x(t->get_x()),
+ pse->ps_y(t->get_y()));
+ write_string(out, s);
+ }
+
+ if (t->get_next()) {
+ return write_text(out, t->get_next());
+ }
+
+ return 0;
+}
--
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