include/wx/gtk/dnd.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dnd.h
   3 // Purpose:     declaration of the wxDropTarget class
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Vadim Zeitlin, Robert Roebling
   7 // Licence:     wxWindows license
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifndef __GTKDNDH__
  12 #define __GTKDNDH__
  13
  14 #ifdef __GNUG__
  15 #pragma interface
  16 #endif
  17
  18 #if wxUSE_DRAG_AND_DROP
  19
  20 #include "wx/object.h"
  21 #include "wx/string.h"
  22 #include "wx/dataobj.h"
  23 #include "wx/cursor.h"
  24 #include "wx/icon.h"
  25 #include "wx/gdicmn.h"
  26
  27 //-------------------------------------------------------------------------
  28 // classes
  29 //-------------------------------------------------------------------------
  30
  31 class wxWindow;
  32
  33 class wxDropTarget;
  34 class wxTextDropTarget;
  35 class wxFileDropTarget;
  36 class wxPrivateDropTarget;
  37
  38 class wxDropSource;
  39
  40 //-------------------------------------------------------------------------
  41 // wxDropTarget
  42 //-------------------------------------------------------------------------
  43
  44 class wxDropTarget: public wxDropTargetBase
  45 {
  46 public:
  47     wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL );
  48
  49     virtual bool OnEnter(wxCoord x, wxCoord y) ;
  50     virtual bool OnMove(wxCoord x, wxCoord y);
  51     virtual bool OnDrop(wxCoord x, wxCoord y);
  52     virtual bool OnData(wxCoord x, wxCoord y);
  53     virtual bool GetData();
  54
  55   // implementation
  56
  57     GdkAtom GetMatchingPair();
  58     void RegisterWidget( GtkWidget *widget );
  59     void UnregisterWidget( GtkWidget *widget );
  60
  61     GdkDragContext     *m_dragContext;
  62     GtkWidget          *m_dragWidget;
  63     GtkSelectionData   *m_dragData;
  64     guint               m_dragTime;
  65     bool                m_firstMotion;     /* gdk has no "gdk_drag_enter" event */
  66
  67     void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
  68     void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
  69     void SetDragData( GtkSelectionData *sd ) { m_dragData = sd; }
  70     void SetDragTime( guint time ) { m_dragTime = time; }
  71 };
  72
  73 //-------------------------------------------------------------------------
  74 // wxDropSource
  75 //-------------------------------------------------------------------------
  76
  77 class wxDropSource: public wxDropSourceBase
  78 {
  79 public:
  80     /* constructor. set data later with SetData() */
  81     wxDropSource( wxWindow *win,
  82                   const wxIcon &go = wxNullIcon,
  83                   const wxIcon &stop = wxNullIcon );
  84
  85     /* constructor for setting one data object */
  86     wxDropSource( wxDataObject& data,
  87                   wxWindow *win,
  88                   const wxIcon &go = wxNullIcon,
  89                   const wxIcon &stop = wxNullIcon );
  90
  91     ~wxDropSource();
  92
  93     /* start drag action */
  94     virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
  95
  96     /* GTK implementation */
  97     void RegisterWindow();
  98     void UnregisterWindow();
  99
 100     GtkWidget     *m_widget;
 101     wxWindow      *m_window;
 102     wxDragResult   m_retValue;
 103     wxDataObject  *m_data;
 104
 105     wxCursor      m_defaultCursor;
 106     wxCursor      m_goaheadCursor;
 107
 108     wxIcon        m_goIcon;
 109     wxIcon        m_stopIcon;
 110
 111     bool          m_waiting;
 112 };
 113
 114 #endif
 115
 116    // wxUSE_DRAG_AND_DROP
 117
 118 #endif
 119        //__GTKDNDH__
 120