blob: 0d1e6a162646229c9d2c16d7899e7847950d9ad4 [file] [log] [blame]
// Dict.h
// Copyright 1996-2003 Glyph & Cog, LLC
#ifndef DICT_H
#define DICT_H
#pragma interface
#include "Object.h"
// Dict
struct DictEntry {
char *key;
Object val;
class Dict {
// Constructor.
Dict(XRef *xrefA);
// Destructor.
// Reference counting.
int incRef() { return ++ref; }
int decRef() { return --ref; }
// Get number of entries.
int getLength() { return length; }
// Add an entry. NB: does not copy key.
void add(char *key, Object *val);
// Update the value of an existing entry, otherwise create it
void set(char *key, Object *val);
// Remove an entry. This invalidate indexes
void remove(char *key);
// Check if dictionary is of specified type.
GBool is(char *type);
// Look up an entry and return the value. Returns a null object
// if <key> is not in the dictionary.
Object *lookup(char *key, Object *obj);
Object *lookupNF(char *key, Object *obj);
GBool lookupInt(const char *key, const char *alt_key, int *value);
// Iterative accessors.
char *getKey(int i);
Object *getVal(int i, Object *obj);
Object *getValNF(int i, Object *obj);
// Set the xref pointer. This is only used in one special case: the
// trailer dictionary, which is read before the xref table is
// parsed.
void setXRef(XRef *xrefA) { xref = xrefA; }
XRef *xref; // the xref table for this PDF file
DictEntry *entries; // array of entries
int size; // size of <entries> array
int length; // number of entries in dictionary
int ref; // reference count
DictEntry *find(char *key);