X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9e2896e5c8944c5f5227fa080e1b781c4a6f2600..3d777efedc1e05bd6c2a7c34a00a65895b62bb13:/include/wx/gtk/dnd.h?ds=sidebyside diff --git a/include/wx/gtk/dnd.h b/include/wx/gtk/dnd.h index c67cb053e8..0aea7b41f6 100644 --- a/include/wx/gtk/dnd.h +++ b/include/wx/gtk/dnd.h @@ -1,215 +1,124 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: dnd.h +// Name: wx/gtk/dnd.h // Purpose: declaration of the wxDropTarget class // Author: Robert Roebling -// RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// +#ifndef _WX_GTK_DND_H_ +#define _WX_GTK_DND_H_ -#ifndef __GTKDNDH__ -#define __GTKDNDH__ - -#ifdef __GNUG__ -#pragma interface -#endif - -#if wxUSE_DRAG_AND_DROP - -#include "wx/object.h" -#include "wx/string.h" -#include "wx/dataobj.h" -#include "wx/cursor.h" #include "wx/icon.h" -#include "wx/gdicmn.h" - -//------------------------------------------------------------------------- -// classes -//------------------------------------------------------------------------- - -class wxWindow; -class wxDropTarget; -class wxTextDropTarget; -class wxFileDropTarget; -class wxPrivateDropTarget; +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- -class wxDropSource; +// this macro may be used instead for wxDropSource ctor arguments: it will use +// the icon 'name' from an XPM file under GTK, but will expand to something +// else under MSW. If you don't use it, you will have to use #ifdef in the +// application code. +#define wxDROP_ICON(name) wxICON(name) //------------------------------------------------------------------------- // wxDropTarget //------------------------------------------------------------------------- -class wxDropTarget: public wxObject +class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase { public: + wxDropTarget(wxDataObject *dataObject = NULL ); - wxDropTarget(); - ~wxDropTarget(); + virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def); + virtual bool OnDrop(wxCoord x, wxCoord y); + virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def); + virtual bool GetData(); - /* may be overridden to react to events */ - virtual void OnEnter(); - virtual void OnLeave(); + // Can only be called during OnXXX methods. + wxDataFormat GetMatchingPair(); - /* may be overridden to reject certain formats or drops - on certain areas. always returns TRUE by default - indicating that you'd accept the data from the drag. */ - virtual bool OnMove( long x, long y ); + // implementation - /* has to be overridden to accept a drop event. call - IsSupported() to ask which formats are available - and then call RequestData() to indicate the format - you request. */ - virtual bool OnDrop( long x, long y ); + GdkAtom GTKGetMatchingPair(bool quiet = false); + wxDragResult GTKFigureOutSuggestedAction(); - /* this gets called once the data has actually arrived. get - it with GetData(). this has to be overridden. */ - virtual bool OnData( long x, long y ); + void GtkRegisterWidget( GtkWidget *widget ); + void GtkUnregisterWidget( GtkWidget *widget ); - /* called from within OnDrop() to request a certain format - from the drop event. */ - bool RequestData( wxDataFormat format ); + GdkDragContext *m_dragContext; + GtkWidget *m_dragWidget; + GtkSelectionData *m_dragData; + unsigned m_dragTime; + bool m_firstMotion; // gdk has no "gdk_drag_enter" event - /* called to query what formats are available */ - bool IsSupported( wxDataFormat format ); - - /* fill data with data from the dragging source */ - bool GetData( wxDataObject *data ); - - virtual size_t GetFormatCount() const = 0; - virtual wxDataFormat GetFormat(size_t n) const = 0; - -// implementation - - void RegisterWidget( GtkWidget *widget ); - void UnregisterWidget( GtkWidget *widget ); - - GdkDragContext *m_dragContext; - GtkWidget *m_dragWidget; - GtkSelectionData *m_dragData; - guint m_dragTime; - bool m_firstMotion; /* gdk has no "gdk_drag_enter" event */ - - void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } - void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; } - void SetDragData( GtkSelectionData *sd ) { m_dragData = sd; } - void SetDragTime( guint time ) { m_dragTime = time; } -}; - -//------------------------------------------------------------------------- -// wxTextDropTarget -//------------------------------------------------------------------------- - -class wxTextDropTarget: public wxDropTarget -{ -public: - - wxTextDropTarget() {} - - virtual bool OnData( long x, long y ); - - /* you have to override OnDropData to get at the text */ - virtual bool OnDropText( long x, long y, const wxChar *text ) = 0; - - virtual size_t GetFormatCount() const - { return 1; } - virtual wxDataFormat GetFormat(size_t n) const - { return wxDF_TEXT; } -}; - -//------------------------------------------------------------------------- -// wxPrivateDropTarget -//------------------------------------------------------------------------- - -/* -class wxPrivateDropTarget: public wxDropTarget -{ -public: - - wxPrivateDropTarget(); - wxPrivateDropTarget( const wxString &id ); - - virtual bool OnMove( long x, long y ); - virtual bool OnDrop( long x, long y ); - virtual bool OnData( long x, long y ); - - virtual bool OnDropData( long x, long y, void *data, size_t size ) = 0; - - void SetId( const wxString& id ) { m_id = id; } - wxString GetId() { return m_id; } - -private: - - wxString m_id; -}; -*/ - -//---------------------------------------------------------------------------- -// A drop target which accepts files (dragged from File Manager or Explorer) -//---------------------------------------------------------------------------- - -class wxFileDropTarget: public wxDropTarget -{ -public: - - wxFileDropTarget() {} - - virtual bool OnData( long x, long y ); - - virtual bool OnDropFiles( long x, long y, size_t nFiles, const wxChar * const aszFiles[] ) = 0; - - virtual size_t GetFormatCount() const - { return 1; } - virtual wxDataFormat GetFormat(size_t n) const - { return wxDF_FILENAME; } + void GTKSetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } + void GTKSetDragWidget( GtkWidget *w ) { m_dragWidget = w; } + void GTKSetDragData( GtkSelectionData *sd ) { m_dragData = sd; } + void GTKSetDragTime(unsigned time) { m_dragTime = time; } }; //------------------------------------------------------------------------- // wxDropSource //------------------------------------------------------------------------- -class wxDropSource: public wxObject +class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase { public: - /* constructor. set data later with SetData() */ - wxDropSource( wxWindow *win, - const wxIcon &go = wxNullIcon, - const wxIcon &stop = wxNullIcon ); + // constructor. set data later with SetData() + wxDropSource( wxWindow *win = NULL, + const wxIcon © = wxNullIcon, + const wxIcon &move = wxNullIcon, + const wxIcon &none = wxNullIcon); - /* constructor for setting one data object */ + // constructor for setting one data object wxDropSource( wxDataObject& data, wxWindow *win, - const wxIcon &go = wxNullIcon, - const wxIcon &stop = wxNullIcon ); + const wxIcon © = wxNullIcon, + const wxIcon &move = wxNullIcon, + const wxIcon &none = wxNullIcon); - ~wxDropSource(); + virtual ~wxDropSource(); - /* start drag action */ - virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE ); + // set the icon corresponding to given drag result + void SetIcon(wxDragResult res, const wxIcon& icon) + { + if ( res == wxDragCopy ) + m_iconCopy = icon; + else if ( res == wxDragMove ) + m_iconMove = icon; + else + m_iconNone = icon; + } - /* GTK implementation */ - void RegisterWindow(); - void UnregisterWindow(); + // start drag action + virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); - GtkWidget *m_widget; - wxWindow *m_window; - wxDragResult m_retValue; - wxDataObject *m_data; + void PrepareIcon( int action, GdkDragContext *context ); - wxCursor m_defaultCursor; - wxCursor m_goaheadCursor; + GtkWidget *m_widget; + GtkWidget *m_iconWindow; + GdkDragContext *m_dragContext; + wxWindow *m_window; - wxIcon m_goIcon; - wxIcon m_stopIcon; + wxDragResult m_retValue; + wxIcon m_iconCopy, + m_iconMove, + m_iconNone; - bool m_waiting; -}; + bool m_waiting; -#endif +private: + // common part of both ctors + void SetIcons(const wxIcon& copy, + const wxIcon& move, + const wxIcon& none); + + // GTK implementation + void GTKConnectDragSignals(); + void GTKDisconnectDragSignals(); - // wxUSE_DRAG_AND_DROP +}; -#endif - //__GTKDNDH__ +#endif // _WX_GTK_DND_H_