added pdf_write_text(), just a placeholder/debugging tool at the moment.

Thu, 13 Mar 2003 07:57:21 +0000

author
eric
date
Thu, 13 Mar 2003 07:57:21 +0000
changeset 119
cbc382d73a86
parent 118
c22e1c0a64fd
child 120
26cbb0d7782b

added pdf_write_text(), just a placeholder/debugging tool at the moment.

Makefile file | annotate | diff | revisions
pdf.h file | annotate | diff | revisions
pdf_text.c file | annotate | diff | revisions
     1.1 --- a/Makefile	Thu Mar 13 06:56:57 2003 +0000
     1.2 +++ b/Makefile	Thu Mar 13 07:57:21 2003 +0000
     1.3 @@ -1,6 +1,6 @@
     1.4  # t2p: build a PDF file out of one or more TIFF Class F Group 4 files
     1.5  # Makefile
     1.6 -# $Id: Makefile,v 1.27 2003/03/12 19:39:38 eric Exp $
     1.7 +# $Id: Makefile,v 1.28 2003/03/12 23:57:21 eric Exp $
     1.8  # Copyright 2001, 2002, 2003 Eric Smith <eric@brouhaha.com>
     1.9  #
    1.10  # This program is free software; you can redistribute it and/or modify
    1.11 @@ -55,7 +55,7 @@
    1.12  # let me know why so I can improve this Makefile.
    1.13  # -----------------------------------------------------------------------------
    1.14  
    1.15 -VERSION = 0.22
    1.16 +VERSION = 0.23
    1.17  
    1.18  PACKAGE = t2p
    1.19  
    1.20 @@ -64,7 +64,7 @@
    1.21  CSRCS = t2p.c semantics.c \
    1.22  	bitblt.c bitblt_table_gen.c bitblt_g4.c g4_table_gen.c \
    1.23  	pdf.c pdf_util.c pdf_prim.c pdf_bookmark.c pdf_name_tree.c \
    1.24 -	pdf_g4.c pdf_jpeg.c
    1.25 +	pdf_text.c pdf_g4.c pdf_jpeg.c
    1.26  OSRCS = scanner.l parser.y
    1.27  HDRS = t2p.h semantics.h bitblt.h bitblt_tables.h \
    1.28  	pdf.h pdf_private.h pdf_util.h pdf_prim.h pdf_name_tree.h
    1.29 @@ -88,7 +88,7 @@
    1.30  t2p: t2p.o scanner.o semantics.o parser.tab.o \
    1.31  		bitblt.o bitblt_g4.o bitblt_tables.o g4_tables.o \
    1.32  		pdf.o pdf_util.o pdf_prim.o pdf_bookmark.o pdf_name_tree.o \
    1.33 -		pdf_g4.o pdf_jpeg.o
    1.34 +		pdf_text.o pdf_g4.o pdf_jpeg.o
    1.35  	$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@
    1.36  ifndef DEBUG
    1.37  	strip $@
     2.1 --- a/pdf.h	Thu Mar 13 06:56:57 2003 +0000
     2.2 +++ b/pdf.h	Thu Mar 13 07:57:21 2003 +0000
     2.3 @@ -4,7 +4,7 @@
     2.4   *      will be compressed using ITU-T T.6 (G4) fax encoding.
     2.5   *
     2.6   * PDF routines
     2.7 - * $Id: pdf.h,v 1.7 2003/03/12 02:57:55 eric Exp $
     2.8 + * $Id: pdf.h,v 1.8 2003/03/12 23:57:21 eric Exp $
     2.9   * Copyright 2001, 2002, 2003 Eric Smith <eric@brouhaha.com>
    2.10   *
    2.11   * This program is free software; you can redistribute it and/or modify
    2.12 @@ -57,6 +57,9 @@
    2.13  void pdf_close_page (pdf_page_handle pdf_page);
    2.14  
    2.15  
    2.16 +void pdf_write_text (pdf_page_handle pdf_page);
    2.17 +
    2.18 +
    2.19  /* The length of the data must be Rows * rowbytes.
    2.20     Note that rowbytes must be at least (Columns+7)/8, but may be arbitrarily
    2.21     large. */
     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/pdf_text.c	Thu Mar 13 07:57:21 2003 +0000
     3.3 @@ -0,0 +1,91 @@
     3.4 +/*
     3.5 + * t2p: Create a PDF file from the contents of one or more TIFF
     3.6 + *      bilevel image files.  The images in the resulting PDF file
     3.7 + *      will be compressed using ITU-T T.6 (G4) fax encoding.
     3.8 + *
     3.9 + * PDF routines
    3.10 + * $Id: pdf_text.c,v 1.1 2003/03/12 23:57:21 eric Exp $
    3.11 + * Copyright 2003 Eric Smith <eric@brouhaha.com>
    3.12 + *
    3.13 + * This program is free software; you can redistribute it and/or modify
    3.14 + * it under the terms of the GNU General Public License version 2 as
    3.15 + * published by the Free Software Foundation.  Note that permission is
    3.16 + * not granted to redistribute this program under the terms of any
    3.17 + * other version of the General Public License.
    3.18 + *
    3.19 + * This program is distributed in the hope that it will be useful,
    3.20 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    3.21 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    3.22 + * GNU General Public License for more details.
    3.23 + *
    3.24 + * You should have received a copy of the GNU General Public License
    3.25 + * along with this program; if not, write to the Free Software
    3.26 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
    3.27 + */
    3.28 +
    3.29 +
    3.30 +#include <stdbool.h>
    3.31 +#include <stdint.h>
    3.32 +#include <stdio.h>
    3.33 +#include <stdlib.h>
    3.34 +#include <string.h>
    3.35 +
    3.36 +
    3.37 +#include "bitblt.h"
    3.38 +#include "pdf.h"
    3.39 +#include "pdf_util.h"
    3.40 +#include "pdf_prim.h"
    3.41 +#include "pdf_private.h"
    3.42 +
    3.43 +
    3.44 +
    3.45 +static void pdf_write_text_content_callback (pdf_file_handle pdf_file,
    3.46 +					     struct pdf_obj *stream,
    3.47 +					     void *app_data)
    3.48 +{
    3.49 +  pdf_stream_printf (pdf_file, stream,
    3.50 +		     "BT /F1 24 Tf 100 100 Td (Hello World) Tj ET\r\n");
    3.51 +}
    3.52 +
    3.53 +
    3.54 +static struct pdf_obj *pdf_create_font (pdf_page_handle pdf_page)
    3.55 +{
    3.56 +  struct pdf_obj *font = pdf_new_ind_ref (pdf_page->pdf_file,
    3.57 +					  pdf_new_obj (PT_DICTIONARY));
    3.58 +  pdf_set_dict_entry (font, "Type", pdf_new_name ("Font"));
    3.59 +  pdf_set_dict_entry (font, "Subtype", pdf_new_name ("Type1"));
    3.60 +  pdf_set_dict_entry (font, "Name", pdf_new_name ("F1"));
    3.61 +  pdf_set_dict_entry (font, "BaseFont", pdf_new_name ("Helvetica"));
    3.62 +  pdf_set_dict_entry (font, "Encoding", pdf_new_name ("MacRomanEncoding"));
    3.63 +
    3.64 +  return (font);
    3.65 +}
    3.66 +
    3.67 +void pdf_write_text (pdf_page_handle pdf_page)
    3.68 +{
    3.69 +  struct pdf_obj *font;
    3.70 +  struct pdf_obj *font_dict;
    3.71 +  struct pdf_obj *content_stream;
    3.72 +
    3.73 +  font = pdf_create_font (pdf_page);
    3.74 +
    3.75 +  font_dict = pdf_new_ind_ref (pdf_page->pdf_file,
    3.76 +			       pdf_new_obj (PT_DICTIONARY));
    3.77 +
    3.78 +  pdf_set_dict_entry (font_dict, "F1", font);
    3.79 +
    3.80 +  pdf_set_dict_entry (pdf_page->resources, "Font", font_dict);
    3.81 +
    3.82 +  pdf_add_array_elem_unique (pdf_page->procset, pdf_new_name ("Text"));
    3.83 +
    3.84 +  content_stream = pdf_new_ind_ref (pdf_page->pdf_file,
    3.85 +				    pdf_new_stream (pdf_page->pdf_file,
    3.86 +						    pdf_new_obj (PT_DICTIONARY),
    3.87 +						    & pdf_write_text_content_callback,
    3.88 +						    NULL));
    3.89 +
    3.90 +  pdf_set_dict_entry (pdf_page->page_dict, "Contents", content_stream);
    3.91 +
    3.92 +  pdf_write_ind_obj (pdf_page->pdf_file, content_stream);
    3.93 +}
    3.94 +