Initial community commit

Src/Wasabi/api/wnd/dragitemi.h

@@ -0,0 +1,58 @@
+#ifndef _DRAGITEMI_H
+#define _DRAGITEMI_H
+
+#include "dragitem.h"
+#include <bfc/common.h>
+#include <bfc/string/stringW.h>
+#include <bfc/ptrlist.h>
+
+class DragItemI : public DragItem
+{
+public:
+	DragItemI(const wchar_t *datatype, void *datum = NULL);
+	virtual ~DragItemI() {}
+
+	void addVoidDatum(void *newdatum);	// up to you to cast it right
+
+	const wchar_t *getDatatype();
+	int getNumData();
+	void *getDatum(int pos = 0);
+
+private:
+	RECVS_DISPATCH;
+
+	StringW datatype;
+	PtrList<char> datalist;
+};
+
+template <class T>
+class DragItemT : public DragItemI
+{
+public:
+	DragItemT(T *item = NULL) : DragItemI(T::dragitem_getDatatype(), item) {}
+	static inline DragItemI *create(T *item) { return new DragItemT<T>(item); }
+
+	void addDatum(T *newdatum)
+	{
+		addVoidDatum(static_cast<void *>(newdatum));
+	}
+};
+
+template <class T>
+class DragItemCast
+{
+public:
+	DragItemCast(DragItem *_item, int _pos = 0) : item(_item), pos(_pos) {}
+	operator T *()
+	{
+		if (item == NULL || !STREQL(T::dragitem_getDatatype(), item->getDatatype()))
+			return NULL;
+		else
+			return static_cast<T*>(item->getDatum(pos));
+	}
+private:
+	DragItem *item;
+	int pos;
+};
+
+#endif