c9057ae1c5
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4113 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
149 lines
4.1 KiB
C++
149 lines
4.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: dnd.h
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// Purpose: declaration of the wxDropTarget class
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// Author: Robert Roebling
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling
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// Licence: wxWindows license
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///////////////////////////////////////////////////////////////////////////////
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#ifndef __GTKDNDH__
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#define __GTKDNDH__
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#ifdef __GNUG__
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#pragma interface
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#endif
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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 wxWindow;
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class wxDropTarget;
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class wxTextDropTarget;
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class wxFileDropTarget;
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class wxDropSource;
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//-------------------------------------------------------------------------
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// wxDropTarget
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//-------------------------------------------------------------------------
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class wxDropTarget: public wxDropTargetBase
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{
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public:
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wxDropTarget(wxDataObject *dataObject = (wxDataObject*) 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 bool OnData(wxCoord x, wxCoord y);
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virtual bool GetData();
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// implementation
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GdkAtom GetMatchingPair();
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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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guint 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( guint time ) { m_dragTime = time; }
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};
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// ----------------------------------------------------------------------------
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// A simple wxDropTarget derived class for text data: you only need to
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// override OnDropText() to get something working
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// ----------------------------------------------------------------------------
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class wxTextDropTarget : public wxDropTarget
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{
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public:
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wxTextDropTarget();
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virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
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virtual bool OnData(wxCoord x, wxCoord y);
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};
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// ----------------------------------------------------------------------------
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// A drop target which accepts files (dragged from File Manager or Explorer)
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// ----------------------------------------------------------------------------
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class wxFileDropTarget : public wxDropTarget
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{
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public:
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wxFileDropTarget();
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// parameters are the number of files and the array of file names
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virtual bool OnDropFiles(wxCoord x, wxCoord y,
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const wxArrayString& filenames) = 0;
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virtual bool OnData(wxCoord x, wxCoord y);
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};
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//-------------------------------------------------------------------------
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// wxDropSource
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//-------------------------------------------------------------------------
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class 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,
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const wxIcon &go = wxNullIcon,
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const wxIcon &stop = 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 &go = wxNullIcon,
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const wxIcon &stop = wxNullIcon );
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~wxDropSource();
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/* start drag action */
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virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
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/* GTK implementation */
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void RegisterWindow();
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void UnregisterWindow();
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GtkWidget *m_widget;
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wxWindow *m_window;
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wxDragResult m_retValue;
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wxCursor m_defaultCursor;
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wxCursor m_goaheadCursor;
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wxIcon m_goIcon;
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wxIcon m_stopIcon;
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bool m_waiting;
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};
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#endif
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// wxUSE_DRAG_AND_DROP
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#endif
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//__GTKDNDH__
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