Functions for a DXF thumbnail (THUMBNAIL). More...

#include "thumbnail.h"

Include dependency graph for thumbnail.c:

Functions
DxfThumbnail *	dxf_thumbnail_new ()
	Allocate memory for a DXF `THUMBNAILIMAGE`.
DxfThumbnail *	dxf_thumbnail_init (DxfThumbnail *thumbnail)
	Allocate memory and initialize data fields in a DXF `THUMBNAILIMAGE` entity.
DxfThumbnail *	dxf_thumbnail_read (DxfFile fp, DxfThumbnail thumbnail)
	Read data from a DXF file into a DXF `THUMBNAILIMAGE` entity.
int	dxf_thumbnail_write (DxfFile fp, DxfThumbnail thumbnail)
	Write a thumbnail to a DXF file.
int	dxf_thumbnail_free (DxfThumbnail *thumbnail)
	Free the allocated memory for a DXF `THUMBNAILIMAGE` and all it's data fields.

Detailed Description

Functions for a DXF thumbnail (THUMBNAIL).

Author:: Copyright (C) 2010, 2012, 2014, 2015, 2017 by Bert Timmerman <bert.timmerman@xs4all.nl>.; Copyright (C) 2010 by Luis Matos <gass@otiliamatos.ath.cx>.

Copyright Notices.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

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:
Free Software Foundation, Inc.,
59 Temple Place,
Suite 330,
Boston,
MA 02111 USA.

Drawing eXchange Format (DXF) is a defacto industry standard for the exchange of drawing files between various Computer Aided Drafting programs.
DXF is an industry standard designed by Autodesk(TM).
For more details see http://www.autodesk.com.

Definition in file thumbnail.c.

Function Documentation

DxfThumbnail* dxf_thumbnail_new ( )

Allocate memory for a DXF THUMBNAILIMAGE.

Fill the memory contents with zeros.

Returns:: NULL when no memory was allocated, a pointer to the allocated memory when succesful.

Version:: According to DXF R10 (backward compatibility).; According to DXF R11 (backward compatibility).; According to DXF R12 (backward compatibility).; According to DXF R13 (backward compatibility).; According to DXF R14 (backward compatibility).; According to DXF R2000.; According to DXF R2000i.; According to DXF R2002.; According to DXF R2004.; According to DXF R2005.; According to DXF R2006.; According to DXF R2008.; According to DXF R2009.; According to DXF R2010.; According to DXF R2011.; According to DXF R2012.; According to DXF R2013.; According to DXF R2014.

Definition at line 69 of file thumbnail.c.

References _, DXF_DEBUG_BEGIN, and DXF_DEBUG_END.

Referenced by dxf_thumbnail_init(), and dxf_thumbnail_read().

DxfThumbnail* dxf_thumbnail_init ( DxfThumbnail * thumbnail )

Allocate memory and initialize data fields in a DXF THUMBNAILIMAGE entity.

Returns:: NULL when no memory was allocated, a pointer to the allocated memory when succesful.

Version:: According to DXF R10 (backward compatibility).; According to DXF R11 (backward compatibility).; According to DXF R12 (backward compatibility).; According to DXF R13 (backward compatibility).; According to DXF R14 (backward compatibility).; According to DXF R2000.; According to DXF R2000i.; According to DXF R2002.; According to DXF R2004.; According to DXF R2005.; According to DXF R2006.; According to DXF R2008.; According to DXF R2009.; According to DXF R2010.; According to DXF R2011.; According to DXF R2012.; According to DXF R2013.; According to DXF R2014.

Parameters:

thumbnail DXF thumbnailimage entity.

Definition at line 126 of file thumbnail.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, DXF_MAX_PARAM, dxf_thumbnail_new(), dxf_thumbnail::number_of_bytes, and dxf_thumbnail::preview_image_data.

Referenced by dxf_drawing_init(), and dxf_thumbnail_read().

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DxfThumbnail* dxf_thumbnail_read	(	DxfFile *	fp,
		DxfThumbnail *	thumbnail
	)

Read data from a DXF file into a DXF THUMBNAILIMAGE entity.

The last line read from file contained the string "THUMBNAILIMAGE".
Now follows some data for the THUMBNAILIMAGE, to be terminated with a " 0" string announcing the following entity, or the end of the ENTITY section marker ENDSEC.
While parsing the DXF file store data in thumbnail.

Returns:: a pointer to thumbnail.

Version:: According to DXF R10 (backward compatibility).; According to DXF R11 (backward compatibility).; According to DXF R12 (backward compatibility).; According to DXF R13 (backward compatibility).; According to DXF R14 (backward compatibility).; According to DXF R2000.; According to DXF R2000i.; According to DXF R2002.; According to DXF R2004.; According to DXF R2005.; According to DXF R2006.; According to DXF R2008.; According to DXF R2009.; According to DXF R2010.; According to DXF R2011.; According to DXF R2012.; According to DXF R2013.; According to DXF R2014.

Parameters:

fp	DXF file pointer to an input file (or device).
thumbnail	DXF thumbnailimage entity.

Definition at line 195 of file thumbnail.c.

References _, dxf_file_struct::acad_version_number, AutoCAD_2000, DXF_DEBUG_BEGIN, DXF_DEBUG_END, dxf_thumbnail_init(), dxf_thumbnail_new(), dxf_file_struct::filename, dxf_file_struct::fp, dxf_file_struct::line_number, dxf_thumbnail::number_of_bytes, and dxf_thumbnail::preview_image_data.

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int dxf_thumbnail_write	(	DxfFile *	fp,
		DxfThumbnail *	thumbnail
	)

Write a thumbnail to a DXF file.

Version:: According to DXF R10 (backward compatibility).; According to DXF R11 (backward compatibility).; According to DXF R12 (backward compatibility).; According to DXF R13 (backward compatibility).; According to DXF R14 (backward compatibility).; According to DXF R2000.; According to DXF R2000i.; According to DXF R2002.; According to DXF R2004.; According to DXF R2005.; According to DXF R2006.; According to DXF R2008.; According to DXF R2009.; According to DXF R2010.; According to DXF R2011.; According to DXF R2012.; According to DXF R2013.; According to DXF R2014.

Parameters:

fp	DXF file pointer to an output file (or device).
thumbnail	the thumbnail to write to the output file.

Definition at line 319 of file thumbnail.c.

References _, dxf_file_struct::acad_version_number, AutoCAD_2000, DXF_DEBUG_BEGIN, DXF_DEBUG_END, dxf_file_struct::fp, dxf_thumbnail::number_of_bytes, and dxf_thumbnail::preview_image_data.

int dxf_thumbnail_free ( DxfThumbnail * thumbnail )

Free the allocated memory for a DXF THUMBNAILIMAGE and all it's data fields.

Returns:: EXIT_SUCCESS when done, or EXIT_FAILURE when an error occurred.

Version:: According to DXF R10 (backward compatibility).; According to DXF R11 (backward compatibility).; According to DXF R12 (backward compatibility).; According to DXF R13 (backward compatibility).; According to DXF R14 (backward compatibility).; According to DXF R2000.; According to DXF R2000i.; According to DXF R2002.; According to DXF R2004.; According to DXF R2005.; According to DXF R2006.; According to DXF R2008.; According to DXF R2009.; According to DXF R2010.; According to DXF R2011.; According to DXF R2012.; According to DXF R2013.; According to DXF R2014.

Parameters:

thumbnail Pointer to the memory occupied by the DXF THUMBNAILIMAGE entity.

Definition at line 412 of file thumbnail.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, DXF_MAX_PARAM, and dxf_thumbnail::preview_image_data.

Referenced by dxf_drawing_free().

thumbnail.c File Reference

Functions

Detailed Description

Copyright Notices.

Function Documentation