130 lines
4 KiB
C++
130 lines
4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/gtk1/dnd.h
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// Purpose: declaration of the wxDropTarget class
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// Author: Robert Roebling
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// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef __GTKDNDH__
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#define __GTKDNDH__
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#if wxUSE_DRAG_AND_DROP
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#include "wx/object.h"
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#include "wx/string.h"
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#include "wx/dataobj.h"
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#include "wx/cursor.h"
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#include "wx/icon.h"
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#include "wx/gdicmn.h"
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//-------------------------------------------------------------------------
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// classes
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//-------------------------------------------------------------------------
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class WXDLLIMPEXP_FWD_CORE wxWindow;
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class WXDLLIMPEXP_FWD_CORE wxDropTarget;
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class WXDLLIMPEXP_FWD_CORE wxTextDropTarget;
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class WXDLLIMPEXP_FWD_CORE wxFileDropTarget;
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class WXDLLIMPEXP_FWD_CORE wxDropSource;
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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// this macro may be used instead for wxDropSource ctor arguments: it will use
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// the icon 'name' from an XPM file under GTK, but will expand to something
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// else under MSW. If you don't use it, you will have to use #ifdef in the
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// application code.
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#define wxDROP_ICON(name) wxICON(name)
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//-------------------------------------------------------------------------
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// wxDropTarget
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//-------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
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{
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public:
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wxDropTarget(wxDataObject *dataObject = NULL );
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virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
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virtual bool OnDrop(wxCoord x, wxCoord y);
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virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
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virtual bool GetData();
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// implementation
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GdkAtom GetMatchingPair(bool quiet = false);
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void RegisterWidget( GtkWidget *widget );
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void UnregisterWidget( GtkWidget *widget );
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GdkDragContext *m_dragContext;
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GtkWidget *m_dragWidget;
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GtkSelectionData *m_dragData;
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unsigned m_dragTime;
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bool m_firstMotion; // gdk has no "gdk_drag_enter" event
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void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
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void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
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void SetDragData( GtkSelectionData *sd ) { m_dragData = sd; }
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void SetDragTime(unsigned time) { m_dragTime = time; }
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};
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//-------------------------------------------------------------------------
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// wxDropSource
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//-------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase
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{
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public:
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// constructor. set data later with SetData()
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wxDropSource( wxWindow *win = NULL,
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const wxIcon © = wxNullIcon,
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const wxIcon &move = wxNullIcon,
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const wxIcon &none = wxNullIcon);
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// constructor for setting one data object
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wxDropSource( wxDataObject& data,
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wxWindow *win,
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const wxIcon © = wxNullIcon,
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const wxIcon &move = wxNullIcon,
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const wxIcon &none = wxNullIcon);
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virtual ~wxDropSource();
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// start drag action
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virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
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// GTK implementation
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void RegisterWindow();
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void UnregisterWindow();
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void PrepareIcon( int action, GdkDragContext *context );
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GtkWidget *m_widget;
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GtkWidget *m_iconWindow;
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GdkDragContext *m_dragContext;
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wxWindow *m_window;
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wxDragResult m_retValue;
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wxIcon m_iconCopy,
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m_iconMove,
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m_iconNone;
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bool m_waiting;
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private:
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// common part of both ctors
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void SetIcons(const wxIcon& copy,
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const wxIcon& move,
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const wxIcon& none);
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};
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#endif // wxUSE_DRAG_AND_DROP
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#endif //__GTKDNDH__
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