mirror of
https://invent.kde.org/graphics/okular
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123 lines
3.9 KiB
C++
123 lines
3.9 KiB
C++
//
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// Class: dviFile
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//
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// Class that represents a DVI file. Part of KDVI - A DVI previewing
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// plugin for kviewshell.
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//
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// (C) 2004 Stefan Kebekus. Distributed under the GPL.
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//
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#ifndef _DVIFILE_H
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#define _DVIFILE_H
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#include <stdio.h>
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#include <qdatastream.h>
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#include <qfile.h>
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#include <q3intdict.h>
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#include <qstring.h>
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//Added by qt3to4:
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#include <Q3MemArray>
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#include "bigEndianByteReader.h"
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class fontPool;
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class pageSize;
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class TeXFontDefinition;
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class dvifile : public bigEndianByteReader
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{
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public:
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/** Makes a deep copy of the old DVI file. */
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dvifile(const dvifile *old, fontPool *fp );
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dvifile(QString fname, class fontPool *pool);
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~dvifile();
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bool isModified;
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fontPool * font_pool;
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QString filename;
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QString generatorString;
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Q_UINT16 total_pages;
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Q3MemArray<Q_UINT32> page_offset;
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/** Saves the DVI file. Returns true on success. */
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bool saveAs(const QString &filename);
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// Returns a pointer to the DVI file's data, or 0 if no data has yet
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// been allocated.
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Q_UINT8 * dvi_Data() {return dviData.data();};
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QIODevice::Offset size_of_file;
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QString errorMsg;
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/** This field is set to zero when the DVI file is constructed, and
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will be modified during the prescan phase (at this time the
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prescan code still resides in the dviRenderer class) */
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Q_UINT16 numberOfExternalPSFiles;
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/** This field is set to zero when the DVI file is constructed, and
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will be modified during the prescan phase (at this time the
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prescan code still resides in the dviRenderer class) */
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Q_UINT16 numberOfExternalNONPSFiles;
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Q_UINT32 beginning_of_postamble;
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/** This flag is set to "true" during the construction of the
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dvifile, and is never changed afterwards by the dvifile
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class. It is used in kdvi in conjuction with source-specials:
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the first time a page with source specials is rendered, KDVI
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shows an info dialog, and the flag is set to false. That way
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KDVI ensures that the user is only informed once. */
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bool sourceSpecialMarker;
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Q3IntDict<TeXFontDefinition> tn_table;
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/** Returns the number of centimeters per DVI unit in this DVI
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file. */
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double getCmPerDVIunit(void) const {return cmPerDVIunit;}
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/** Returns the magnification of the DVI file, as described in the
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DVI Standard. */
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Q_UINT32 getMagnification() const {return _magnification;}
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/** This member is set to zero on construction and can be used by
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other software to count error messages that were printed when
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the DVI-file was processed. Suggested application: limit the
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number of error messages to, say, 25. */
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Q_UINT8 errorCounter;
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/** Papersize information read from the dvi-File */
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pageSize *suggestedPageSize;
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/** Sets new DVI data; all old data is erased. EXPERIMENTAL, use
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with care. */
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void setNewData(Q3MemArray<Q_UINT8> newData) {dviData = newData; isModified=true;};
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/** Page numbers that appear in a DVI document need not be
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ordered. Worse, page numbers need not be unique. This method
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renumbers the pages. */
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void renumber();
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private:
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/** process_preamble reads the information in the preamble and
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stores it into global variables for later use. */
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void process_preamble(void);
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void find_postamble(void);
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/** read_postamble reads the information in the postamble, storing
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it into global variables. It also takes care of reading in all
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of the pixel files for the fonts used in the job. */
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void read_postamble(void);
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void prepare_pages(void);
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/** Offset in DVI file of last page, set in read_postamble(). */
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Q_UINT32 last_page_offset;
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Q_UINT32 _magnification;
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double cmPerDVIunit;
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Q3MemArray<Q_UINT8> dviData;
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};
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#endif //ifndef _DVIFILE_H
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