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/* This file is -*-C++-*-
------------------------------------------------------------------------------
MetaCam - Extract EXIF information from digital camera files, with
support for Vendor specific blocks.
Copyright (C) 2000 Daniel Stephens (daniel@cheeseplant.org)
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 the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
------------------------------------------------------------------------------
$Id: odrivers.h,v 1.3 2004/08/21 17:23:24 daniel Exp $
*/
#ifndef ODRIVERS_H_INCLUDED
#define ODRIVERS_H_INCLUDED
#include "metacam.h"
#include <sstream>
class DisplayOutputContext : public OutputContext
{
private:
ostream &o_stream;
bool in_block;
public:
DisplayOutputContext(ostream &o) : o_stream(o), in_block(false) {};
virtual ~DisplayOutputContext();
virtual ostream &startBlock(const char *hdr);
virtual ostream &startBlock(const string &hdr);
virtual ostream &os();
virtual void endBlock();
};
class DisplayOutputDriver : public OutputDriver
{
private:
ostream &os;
OutputContext *current_context;
public:
DisplayOutputDriver(ostream &o) : os(o), current_context(0) {}
virtual ~DisplayOutputDriver();
virtual void startFile(const char *fname);
virtual OutputContext *startGroup(const char *header);
virtual OutputContext *startGroup(const string &header);
virtual void endGroup();
virtual void endFile();
virtual void close();
};
class XMLOutputDriver : public OutputDriver
{
private:
ostream &os;
OutputContext *current_context;
bool is_open;
bool in_file;
public:
XMLOutputDriver(ostream &o);
virtual ~XMLOutputDriver();
virtual void startFile(const char *fname);
virtual OutputContext *startGroup(const char *header);
virtual OutputContext *startGroup(const string &header);
virtual void endGroup();
virtual void endFile();
virtual void close();
void outputRaw(const char *buf ) {os << buf; }
void outputCooked(const char *);
void outputLine(const char *buf) { os << buf << endl; }
void outputAttribute(const char *name, const char *value) {
os << " " << name << "=\"";
outputCooked(value);
os << "\"";
}
void outputRaw(const string &buf ) {os << buf; }
void outputCooked(const string &);
void outputLine(const string &buf) { os << buf << endl; }
void outputAttribute(const string &name, const string &value) {
os << " " << name << "=\"";
outputCooked(value);
os << "\"";
}
void outputAttribute(const char *name, const string &value) {
os << " " << name << "=\"";
outputCooked(value);
os << "\"";
}
};
class XMLOutputContext : public OutputContext
{
private:
XMLOutputDriver &driver;
ostringstream *str;
bool in_block;
public:
XMLOutputContext(XMLOutputDriver &drv) : driver(drv), in_block(false) {};
virtual ~XMLOutputContext();
virtual ostream &startBlock(const char *hdr);
virtual ostream &startBlock(const string &hdr);
virtual ostream &os();
virtual void endBlock();
};
#endif /* ODRIVERS_H_INCLUDED */
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