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brouhaha.tumble/pdf_text.c
2003-03-13 08:57:05 +00:00

90 lines
2.6 KiB
C

/*
* tumble: build a PDF file from image files
*
* PDF routines
* $Id: pdf_text.c,v 1.2 2003/03/13 00:57:05 eric Exp $
* Copyright 2003 Eric Smith <eric@brouhaha.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. Note that permission is
* not granted to redistribute this program under the terms of any
* other version of the General Public License.
*
* This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bitblt.h"
#include "pdf.h"
#include "pdf_util.h"
#include "pdf_prim.h"
#include "pdf_private.h"
static void pdf_write_text_content_callback (pdf_file_handle pdf_file,
struct pdf_obj *stream,
void *app_data)
{
pdf_stream_printf (pdf_file, stream,
"BT /F1 24 Tf 100 100 Td (Hello World) Tj ET\r\n");
}
static struct pdf_obj *pdf_create_font (pdf_page_handle pdf_page)
{
struct pdf_obj *font = pdf_new_ind_ref (pdf_page->pdf_file,
pdf_new_obj (PT_DICTIONARY));
pdf_set_dict_entry (font, "Type", pdf_new_name ("Font"));
pdf_set_dict_entry (font, "Subtype", pdf_new_name ("Type1"));
pdf_set_dict_entry (font, "Name", pdf_new_name ("F1"));
pdf_set_dict_entry (font, "BaseFont", pdf_new_name ("Helvetica"));
pdf_set_dict_entry (font, "Encoding", pdf_new_name ("MacRomanEncoding"));
return (font);
}
void pdf_write_text (pdf_page_handle pdf_page)
{
struct pdf_obj *font;
struct pdf_obj *font_dict;
struct pdf_obj *content_stream;
font = pdf_create_font (pdf_page);
font_dict = pdf_new_ind_ref (pdf_page->pdf_file,
pdf_new_obj (PT_DICTIONARY));
pdf_set_dict_entry (font_dict, "F1", font);
pdf_set_dict_entry (pdf_page->resources, "Font", font_dict);
pdf_add_array_elem_unique (pdf_page->procset, pdf_new_name ("Text"));
content_stream = pdf_new_ind_ref (pdf_page->pdf_file,
pdf_new_stream (pdf_page->pdf_file,
pdf_new_obj (PT_DICTIONARY),
& pdf_write_text_content_callback,
NULL));
pdf_set_dict_entry (pdf_page->page_dict, "Contents", content_stream);
pdf_write_ind_obj (pdf_page->pdf_file, content_stream);
}