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/* This file is part of the KDE project
Copyright (C) 2002, Dirk Sch�nberger <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef PSCOMMENTLEXER_H
#define PSCOMMENTLEXER_H
#include <tqiodevice.h>
#include <tqstring.h>
/**
*@author Dirk Sch�nberger
*/
typedef enum {
State_Comment=0,
State_CommentEncodedChar,
State_Start
} State;
typedef enum {
Action_Copy=1,
Action_CopyOutput,
Action_Output,
Action_Ignore,
Action_Abort,
Action_OutputUnget,
Action_InitTemp,
Action_CopyTemp,
Action_DecodeUnget,
Action_ByteArraySpecial
} Action;
class StringBuffer {
public:
StringBuffer ();
virtual ~StringBuffer ();
void append (char c);
void clear();
TQString toString() const;
uint length();
double toFloat();
int toInt();
const char *latin1();
TQString mid( uint index, uint len=0xffffffff) const;
private:
char *m_buffer;
uint m_length;
int m_capacity;
void ensureCapacity (int p_capacity);
};
class PSCommentLexer {
public:
PSCommentLexer();
virtual ~PSCommentLexer();
virtual bool parse (TQIODevice& fin);
private:
State m_curState;
StringBuffer m_buffer;
StringBuffer m_temp;
void nextStep (char c, State* newState, Action* newAction);
void doOutput ();
uchar decode();
protected:
virtual void parsingStarted();
virtual void parsingFinished();
virtual void parsingAborted();
virtual void gotComment (const char *value);
};
class BoundingBoxExtractor : public PSCommentLexer
{
public:
BoundingBoxExtractor();
virtual ~BoundingBoxExtractor();
int llx() { return m_llx; }
int lly() { return m_lly; }
int urx() { return m_urx; }
int ury() { return m_ury; }
private:
int m_llx, m_lly, m_urx, m_ury;
bool getRectangle (const char* input, int &llx, int &lly, int &urx, int &ury);
protected:
void gotComment (const char *value);
};
#endif
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