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/* Copyright (C) 2002 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gdevpdtx.h,v 1.4 2005/01/24 16:03:40 igor Exp $ */
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/* Shared implementation definitions for pdfwrite text and fonts */
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#ifndef gdevpdtx_INCLUDED
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# define gdevpdtx_INCLUDED
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#include "gdevpdt.h"
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/*
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* The pdfwrite text code is designed in layers. Each layer uses only
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* facilities defined in that layer and those below it. The layers and the
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* code files that define them are:
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*
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* Text processing
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* gdevpdtt.c - main text processing and utilities
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* gdevpdtc.c - processing for composite and CID-based fonts
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* gdevpdte.c - processing for Encoding-based (i.e., all other) fonts
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* gdevpdts.c - text state bookkeeping
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* gdevpdt[st].h - definitions shared by the above
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* Font resources
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* gdevpdtf.h - interface and public definitions
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* gdevpdtf.c - implementation of font resources, except for writing
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* gdevpdtw.[hc] - font resource writing
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* Font descriptors
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* gdevpdtd.h - interface and public definitions
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* gdevpdtd.c - implementation of font descriptors
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* Base fonts
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* gdevpdtb.h - interface and public definitions
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* gdevpdtb.c - implementation of base fonts
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*
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* There is also a module for bitmap font processing:
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* gdevpdti.h - interface and public definitions
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* gdevpdti.c - implementation of bitmap fonts
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* This handles both text processing and font resource management for
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* Type 3 bitmap fonts, which don't fit into the layer structure very well.
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*/
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/* ================ Types and structures ================ */
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/*
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* Define the structure for managing the text and font state. This is
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* made up of several individually opaque components.
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*/
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#ifndef pdf_bitmap_fonts_DEFINED
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# define pdf_bitmap_fonts_DEFINED
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typedef struct pdf_bitmap_fonts_s pdf_bitmap_fonts_t;
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#endif
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#ifndef pdf_outline_fonts_DEFINED
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# define pdf_outline_fonts_DEFINED
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typedef struct pdf_outline_fonts_s pdf_outline_fonts_t;
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#endif
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#ifndef pdf_text_state_DEFINED
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# define pdf_text_state_DEFINED
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typedef struct pdf_text_state_s pdf_text_state_t;
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#endif
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/*typedef struct pdf_text_data_s pdf_text_data_t;*/ /* gdevpdfx.h */
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struct pdf_text_data_s {
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pdf_outline_fonts_t *outline_fonts; /* gdevpdtf.c */
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pdf_bitmap_fonts_t *bitmap_fonts; /* gdevpdti.c */
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pdf_text_state_t *text_state; /* gdevpdts.c */
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};
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#define private_st_pdf_text_data() /* gdevpdt.c */\
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gs_private_st_ptrs3(st_pdf_text_data, pdf_text_data_t, "pdf_text_data_t",\
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pdf_text_data_enum_ptrs, pdf_text_data_reloc_ptrs,\
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outline_fonts, bitmap_fonts, text_state)
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/* ================ Procedures (internal utilities) ================ */
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/* The typedef will eventually move to gdevpdfx.h. */
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typedef struct pdf_font_resource_s pdf_font_resource_t;
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/* ---------------- Font accessing ---------------- */
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/* Get the object ID of a font resource. */
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long pdf_font_id(const pdf_font_resource_t *pdfont);
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/* Register charproc fonts with the page or substream. */
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int pdf_used_charproc_resources(gx_device_pdf *pdev, pdf_font_resource_t *pdfont);
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#endif /* gdevpdtx_INCLUDED */
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