winamp/Src/Wasabi/bfc/string/stringdict.h

#ifndef __STRINGDICT_H
#define __STRINGDICT_H

#include <bfc/string/StringW.h>
#include <bfc/ptrlist.h>

// a convenient class to statically declare strings and their IDs with binary search lookups
//
// example of use :
//
// BEGIN_STRINGDICTIONARY(_identifier)
// SDI("somestring",              0);
// SDI("someotherstring",         1);
// SDI("andyetanotherstring",     2);
// END_STRINGDICTIONARY(_identifier, identifier)

// foo (const char *str) {
//  int a = identifier.getId(str);
//  if (a < 0) {
//    // not found!
//  }
// return a;
// }

class StringDictionaryItem
{
public:
	StringDictionaryItem(const wchar_t *string, int stringid) : str(string), id(stringid) {}
	virtual ~StringDictionaryItem() {}
	const wchar_t *getString() 
	{ 
		return str; 
	}
	int getId()
	{
		return id; 
	}
private:
	StringW str;
	int id;
};

class StringDictionaryItemCompare
{
public:
	static int compareItem(void *p1, void *p2)
	{
		return WCSICMP(((StringDictionaryItem *)p1)->getString(), ((StringDictionaryItem *)p2)->getString());
	}
	static int compareAttrib(const wchar_t *attrib, void *item)
	{
		return WCSICMP(attrib, ((StringDictionaryItem *)item)->getString());
	}
};

class StringDictionary
{
public:
	StringDictionary() {}
	virtual ~StringDictionary()
	{
		items.deleteAll();
	}
	virtual void addItem(const wchar_t *str, int id)
	{
		ASSERT(id != -1);
		items.addItem(new StringDictionaryItem(str, id));
	}
	virtual int getId(const wchar_t *str)
	{
		StringDictionaryItem *i = items.findItem(str);
		if (i == NULL)
			return -1;
		return i->getId();
	}
private:
	PtrListQuickSorted<StringDictionaryItem, StringDictionaryItemCompare> items;
};

#define BEGIN_STRINGDICTIONARY(class_ident) \
	class class_ident : public StringDictionary { \
	public: \
		class_ident() {

#define SDI(str, id) \
	addItem(str, id);

#define END_STRINGDICTIONARY(class_ident, instance_ident) \
	}; \
	virtual ~class_ident() { } \
	}; \
	\
	class_ident instance_ident;


#endif