86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*
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* tumble: build a PDF file from image files
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*
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* PDF routines
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* Copyright 2003, 2017 Eric Smith <spacewar@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. Note that permission is
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* not granted to redistribute this program under the terms of any
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* other version of the General Public License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "bitblt.h"
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#include "pdf.h"
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#include "pdf_util.h"
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#include "pdf_prim.h"
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#include "pdf_private.h"
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static void pdf_write_text_content_callback (pdf_file_handle pdf_file,
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pdf_obj_handle stream,
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void *app_data)
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{
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pdf_stream_printf (pdf_file, stream,
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"BT /F1 24 Tf 100 100 Td (Hello World) Tj ET\r\n");
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}
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static pdf_obj_handle pdf_create_font (pdf_page_handle pdf_page)
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{
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pdf_obj_handle font = pdf_new_ind_ref (pdf_page->pdf_file,
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pdf_new_obj (PT_DICTIONARY));
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pdf_set_dict_entry (font, "Type", pdf_new_name ("Font"));
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pdf_set_dict_entry (font, "Subtype", pdf_new_name ("Type1"));
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pdf_set_dict_entry (font, "Name", pdf_new_name ("F1"));
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pdf_set_dict_entry (font, "BaseFont", pdf_new_name ("Helvetica"));
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pdf_set_dict_entry (font, "Encoding", pdf_new_name ("MacRomanEncoding"));
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return (font);
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}
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void pdf_write_text (pdf_page_handle pdf_page)
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{
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pdf_obj_handle font;
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pdf_obj_handle font_dict;
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font = pdf_create_font (pdf_page);
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font_dict = pdf_new_ind_ref (pdf_page->pdf_file,
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pdf_new_obj (PT_DICTIONARY));
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pdf_set_dict_entry (font_dict, "F1", font);
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pdf_set_dict_entry (pdf_page->resources, "Font", font_dict);
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pdf_add_array_elem_unique (pdf_page->procset, pdf_new_name ("Text"));
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pdf_obj_handle content_stream = pdf_new_ind_ref(pdf_page->pdf_file,
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pdf_new_stream (pdf_page->pdf_file,
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pdf_new_obj (PT_DICTIONARY),
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& pdf_write_text_content_callback,
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NULL));
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pdf_page_add_content_stream(pdf_page, content_stream);
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}
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