76 lines
2.9 KiB
C++
76 lines
2.9 KiB
C++
#ifndef __WASABI_DRAG_H
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#define __WASABI_DRAG_H
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class ifc_window;
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#include <bfc/wasabi_std.h>
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class NOVTABLE DragInterface
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{
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public:
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// (called on dest) when dragged item enters the winder
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virtual int dragEnter(ifc_window *sourceWnd) = 0;
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// (called on dest) during the winder
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virtual int dragOver(int x, int y, ifc_window *sourceWnd) = 0;
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// (called on src)
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virtual int dragSetSticky(ifc_window *wnd, int left, int right, int up, int down) = 0;
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// (called on dest) when dragged item leaves the winder
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virtual int dragLeave(ifc_window *sourceWnd) = 0;
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// (called on dest) here is where we actually drop it
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virtual int dragDrop(ifc_window *sourceWnd, int x, int y) = 0;
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// must be called from within dragDrop(); (receiver)
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virtual const wchar_t *dragGetSuggestedDropTitle(void) = 0;
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// must be called from within your dragEnter, Over, Leave, or Drop
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// return the slot # if you support this form of the data, -1 otherwise
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// nitems can be NULL if you're just checking validity
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virtual int dragCheckData(const wchar_t *type, int *nitems = NULL) = 0;
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// fetches a specific pointer that was stored
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virtual void *dragGetData(int slot, int itemnum) = 0;
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virtual int dragCheckOption(int option) = 0;
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};
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class DragInterfaceI : public DragInterface
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{
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public:
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// (called on dest) when dragged item enters the winder
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virtual int dragEnter(ifc_window *sourceWnd) { return 0; }
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// (called on dest) during the winder
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virtual int dragOver(int x, int y, ifc_window *sourceWnd) { return 0; }
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// (called on src)
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virtual int dragSetSticky(ifc_window *wnd, int left, int right, int up, int down) { return 0; }
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// (called on dest) when dragged item leaves the winder
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virtual int dragLeave(ifc_window *sourceWnd) { return 0; }
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// (called on dest) here is where we actually drop it
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virtual int dragDrop(ifc_window *sourceWnd, int x, int y) { return 0; }
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// must be called from within dragDrop(); (receiver)
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virtual const wchar_t *dragGetSuggestedDropTitle(void) { return NULL; }
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// must be called from within your dragEnter, Over, Leave, or Drop
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// return the slot # if you support this form of the data, -1 otherwise
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// nitems can be NULL if you're just checking validity
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virtual int dragCheckData(const wchar_t *type, int *nitems = NULL) { return 0; }
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// fetches a specific pointer that was stored
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virtual void *dragGetData(int slot, int itemnum) { return 0; }
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virtual int dragCheckOption(int option) { return 0; }
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};
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class DI
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{
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public:
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DI(ifc_window *rw);
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int dragEnter(ifc_window *sourceWnd);
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int dragOver(int x, int y, ifc_window *sourceWnd);
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int dragSetSticky(ifc_window *wnd, int left, int right, int up, int down);
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int dragLeave(ifc_window *sourceWnd);
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int dragDrop(ifc_window *sourceWnd, int x, int y);
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const wchar_t *dragGetSuggestedDropTitle(void);
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int dragCheckData(const wchar_t *type, int *nitems = NULL);
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void *dragGetData(int slot, int itemnum);
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int dragCheckOption(int option);
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private:
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DragInterface *di;
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};
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#endif
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