X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8e193f384f7b98daef459653ddb8485173fba8ba..1ec4e9c2b72a01a7ba7da569e0f8d04a81aaba10:/include/wx/gtk/dnd.h diff --git a/include/wx/gtk/dnd.h b/include/wx/gtk/dnd.h index 0804af75c8..c9f677d3c7 100644 --- a/include/wx/gtk/dnd.h +++ b/include/wx/gtk/dnd.h @@ -1,238 +1,125 @@ /////////////////////////////////////////////////////////////////////////////// -// 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 - -#include "wx/defs.h" - -#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; +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- -class wxDropTarget; -class wxTextDropTarget; -class wxFileDropTarget; -class wxPrivateDropTarget; - -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(); - - /* may be overridden to react to events */ - virtual void OnEnter(); - virtual void OnLeave(); + 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 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 ); + // Can only be called during OnXXX methods. + wxDataFormat GetMatchingPair(); - /* 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 ); + // implementation - /* 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 ); + GdkAtom GTKGetMatchingPair(bool quiet = false); + wxDragResult GTKFigureOutSuggestedAction(); - /* called from within OnDrop() to request a certain format - from the drop event. */ - bool RequestData( wxDataFormat format ); + void GtkRegisterWidget( GtkWidget *widget ); + void GtkUnregisterWidget( GtkWidget *widget ); - /* called to query what formats are available */ - bool IsSupported( wxDataFormat format ); - - /* fill data with data from the dragging source */ - bool GetData( wxDataObject *data ); - -// 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 OnMove( long x, long y ); - virtual bool OnDrop( long x, long y ); - 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; - -}; - -//------------------------------------------------------------------------- -// wxPrivateDropTarget -//------------------------------------------------------------------------- - -class wxPrivateDropTarget: public wxDropTarget -{ -public: - - /* sets id to "application/myprogram" where "myprogram" is the - same as wxApp->GetAppName() */ - wxPrivateDropTarget(); - /* see SetId() below for explanation */ - 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 ); - - /* you have to override OnDropData to get at the data */ - virtual bool OnDropData( long x, long y, void *data, size_t size ) = 0; - - /* the string ID identifies the format of clipboard or DnD data. a word - processor would e.g. add a wxTextDataObject and a wxPrivateDataObject - to the clipboard - the latter with the Id "application/wxword" or - "image/png". */ - 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 OnMove( long x, long y ); - virtual bool OnDrop( long x, long y ); - virtual bool OnData( long x, long y ); - - /* you have to override OnDropFiles to get at the file names */ - virtual bool OnDropFiles( long x, long y, size_t nFiles, const wxChar * const aszFiles[] ) = 0; + GdkDragContext *m_dragContext; + GtkWidget *m_dragWidget; + GtkSelectionData *m_dragData; + unsigned m_dragTime; + bool m_firstMotion; // gdk has no "gdk_drag_enter" event + 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 //------------------------------------------------------------------------- -enum wxDragResult -{ - wxDragError, // error prevented the d&d operation from completing - wxDragNone, // drag target didn't accept the data - wxDragCopy, // the data was successfully copied - wxDragMove, // the data was successfully moved (MSW only) - wxDragCancel // the operation was cancelled by user (not an error) -}; - -class wxDropSource: public wxObject +class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase { public: + // 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 + wxDropSource( wxDataObject& data, + wxWindow *win, + const wxIcon © = wxNullIcon, + const wxIcon &move = wxNullIcon, + const wxIcon &none = wxNullIcon); + + virtual ~wxDropSource(); + + // 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; + } + + // start drag action + virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); + + void PrepareIcon( int action, GdkDragContext *context ); + + GtkWidget *m_widget; + GtkWidget *m_iconWindow; + GdkDragContext *m_dragContext; + wxWindow *m_window; + + wxDragResult m_retValue; + wxIcon m_iconCopy, + m_iconMove, + m_iconNone; + + bool m_waiting; - /* constructor. set data later with SetData() */ - wxDropSource( wxWindow *win, const wxIcon &go = wxNullIcon, const wxIcon &stop = wxNullIcon ); - - /* constructor for setting one data object */ - wxDropSource( wxDataObject& data, wxWindow *win, const wxIcon &go = wxNullIcon, const wxIcon &stop = wxNullIcon ); - - /* constructor for setting several data objects via wxDataBroker */ - wxDropSource( wxDataBroker *data, wxWindow *win ); - - ~wxDropSource(); - - /* set several dataobjects via wxDataBroker */ - void SetData( wxDataBroker *data ); - - /* set one dataobject */ - void SetData( wxDataObject& data ); - - // this one isn't portable to wxMSW -- deprecated - void SetData( wxDataObject *data ); - - /* start drag action */ - wxDragResult DoDragDrop( bool bAllowMove = FALSE ); - - /* override to give feedback */ - virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; } - - /* GTK implementation */ - - void RegisterWindow(); - void UnregisterWindow(); - - GtkWidget *m_widget; - wxWindow *m_window; - wxDragResult m_retValue; - wxDataBroker *m_data; - - wxCursor m_defaultCursor; - wxCursor m_goaheadCursor; +private: + // common part of both ctors + void SetIcons(const wxIcon& copy, + const wxIcon& move, + const wxIcon& none); - wxIcon m_goIcon; - wxIcon m_stopIcon; + // GTK implementation + void GTKConnectDragSignals(); + void GTKDisconnectDragSignals(); - bool m_waiting; }; -#endif - - // wxUSE_DRAG_AND_DROP - -#endif - //__GTKDNDH__ +#endif // _WX_GTK_DND_H_