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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: metacam.h,v 1.6 2004/08/21 17:11:17 daniel Exp $
*/
#ifndef METACAM_H_INCLUDED
#define METACAM_H_INCLUDED
#include <map>
#include "metatiff.h"
class idpair
{
private:
unsigned long tag;
unsigned short type;
public:
idpair() : tag(0), type(0) {};
idpair(unsigned long a, unsigned short b) : tag(a), type(b) {};
bool operator==(const idpair &i) const {
return (tag==i.tag) && (type == i.type);
}
bool operator!=(const idpair &i) const {
return (tag!=i.tag) || (type != i.type);
}
bool operator<=(const idpair &i) const {
if (tag < i.tag) return true;
if (tag > i.tag) return false;
return (type <= i.type);
}
bool operator<(const idpair &i) const {
if (tag < i.tag) return true;
if (tag > i.tag) return false;
return (type < i.type);
}
bool operator>(const idpair &i) const {
if (tag > i.tag) return true;
if (tag < i.tag) return false;
return (type > i.type);
}
bool operator>=(const idpair &i) const {
if (tag > i.tag) return true;
if (tag < i.tag) return false;
return (type >= i.type);
}
};
typedef map<idpair, IFDEntry> tagmap;
class OutputContext
{
private:
map<string,string> cmap;
public:
OutputContext() {};
virtual ~OutputContext();
string getContextValue(string key) {
map<string,string>::iterator iter = cmap.find(key);
if (iter == cmap.end()) return string();
return (*iter).second;
}
void setContextValue(string key, string val) {
cmap[key] = val;
}
bool hasContextValue(string key) {
map<string,string>::iterator iter = cmap.find(key);
return (iter != cmap.end());
}
virtual ostream &startBlock(const char *hdr) = 0;
virtual ostream &startBlock(const string &hdr) = 0;
virtual ostream &os() = 0;
virtual void endBlock() = 0;
};
class OutputDriver
{
public:
virtual ~OutputDriver();
virtual void startFile(const char *fname) = 0;
virtual OutputContext *startGroup(const char *header) = 0;
virtual OutputContext *startGroup(const string &header) = 0;
virtual void endGroup() = 0;
virtual void endFile() = 0;
virtual void close() = 0;
};
typedef void dpyFunction(OutputContext &ctx, const char *, const IFDEntry &e,
const void *fdata);
struct knowntag
{
unsigned long tag;
unsigned short type;
int verbose;
const char *name;
dpyFunction *func;
const void *funcdata;
};
struct lookupValue
{
int key;
const char *value;
};
#endif /* METACAM_H_INCLUDED */
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