X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/829e3e8d3d177f5323e1ed7eec733f33a10a0df8..86ac84b8ce086e6bbda58f422d41f84268606e35:/include/wx/gtk/dnd.h diff --git a/include/wx/gtk/dnd.h b/include/wx/gtk/dnd.h index a546b66b12..ee679af13f 100644 --- a/include/wx/gtk/dnd.h +++ b/include/wx/gtk/dnd.h @@ -4,320 +4,110 @@ // 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; - -//------------------------------------------------------------------------- -// 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 -{ -public: - - /* 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 ); - - /* 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; - - wxIcon m_goIcon; - wxIcon m_stopIcon; -}; - -#include "gtk/gtk.h" -#if (GTK_MINOR_VERSION > 0) +// 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(); - - /* may be overridden to reject certain formats or drops - on certain areas */ - virtual bool OnMove( int x, int y ); - - /* has to be overridden to accept drop. call GetData() to - indicate the format you request and get the data. */ - virtual bool OnDrop( int x, int y ); + 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(); - /* called to query what formats are available */ - bool IsSupported( wxDataFormat format ); - - /* fill data with data from the dragging source */ - bool GetData( wxDataObject *data ); + // Can only be called during OnXXX methods. + wxDataFormat GetMatchingPair(); -// implementation - - void RegisterWidget( GtkWidget *widget ); - void UnregisterWidget( GtkWidget *widget ); - - GdkDragContext *m_dragContext; - GtkWidget *m_dragWidget; - guint m_dragTime; - bool m_firstMotion; /* gdk has no "gdk_drag_enter" event */ - bool m_waiting; /* asynchronous process */ - bool m_dataRetrieveSuccess; - wxDataObject *m_currentDataObject; - - void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } - void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; } - void SetDragTime( guint time ) { m_dragTime = time; } -}; + // implementation -//------------------------------------------------------------------------- -// wxTextDropTarget -//------------------------------------------------------------------------- + GdkAtom GtkGetMatchingPair(bool quiet = false); -class wxTextDropTarget: public wxDropTarget -{ -public: + void GtkRegisterWidget( GtkWidget *widget ); + void GtkUnregisterWidget( GtkWidget *widget ); - wxTextDropTarget() {} + GdkDragContext *m_dragContext; + GtkWidget *m_dragWidget; + GtkSelectionData *m_dragData; + guint m_dragTime; + bool m_firstMotion; // gdk has no "gdk_drag_enter" event - virtual bool OnMove( int x, int y ); - virtual bool OnDrop( int x, int y ); - - /* you have to override OnDropData to get at the text */ - virtual bool OnDropText( int x, int y, const char *text ) = 0; - + void GtkSetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } + void GtkSetDragWidget( GtkWidget *w ) { m_dragWidget = w; } + void GtkSetDragData( GtkSelectionData *sd ) { m_dragData = sd; } + void GtkSetDragTime( guint time ) { m_dragTime = time; } }; //------------------------------------------------------------------------- -// wxPrivateDropTarget +// wxDropSource //------------------------------------------------------------------------- -class wxPrivateDropTarget: public wxDropTarget +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); - /* 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( int x, int y ); - virtual bool OnDrop( int x, int y ); - - /* you have to override OnDropData to get at the data */ - virtual bool OnDropData( int x, int 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: + // constructor for setting one data object + wxDropSource( wxDataObject& data, + wxWindow *win, + const wxIcon © = wxNullIcon, + const wxIcon &move = wxNullIcon, + const wxIcon &none = wxNullIcon); - wxString m_id; -}; + virtual ~wxDropSource(); -//---------------------------------------------------------------------------- -// A drop target which accepts files (dragged from File Manager or Explorer) -//---------------------------------------------------------------------------- + // start drag action + virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); -class wxFileDropTarget: public wxDropTarget -{ -public: - - wxFileDropTarget() {} - - virtual bool OnMove( int x, int y ); - virtual bool OnDrop( int x, int y ); - virtual void OnData( int x, int y ); - - /* you have to override OnDropFiles to get at the file names */ - virtual bool OnDropFiles( int x, int y, size_t nFiles, const char * const aszFiles[] ) = 0; - -}; - -#else - -//------------------------------------------------------------------------- -// wxDropTarget -//------------------------------------------------------------------------- - -class wxDropTarget: public wxObject -{ - public: - - wxDropTarget(); - ~wxDropTarget(); - - virtual void OnEnter() { } - virtual void OnLeave() { } - virtual void OnMouseMove( long WXUNUSED(x), long WXUNUSED(y) ) { } - virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0; - - // Override these to indicate what kind of data you support: - - virtual size_t GetFormatCount() const = 0; - virtual wxDataFormat &GetFormat(size_t n) const; - - // implementation - - void RegisterWidget( GtkWidget *widget ); - void UnregisterWidget( GtkWidget *widget ); - - wxDataFormat *m_format; -}; - -//------------------------------------------------------------------------- -// wxTextDropTarget -//------------------------------------------------------------------------- + void PrepareIcon( int action, GdkDragContext *context ); -class wxTextDropTarget: public wxDropTarget -{ - public: - - wxTextDropTarget(); - virtual bool OnDrop( long x, long y, const void *data, size_t size ); - virtual bool OnDropText( long x, long y, const char *psz ); - - protected: - - virtual size_t GetFormatCount() const; -}; - -//------------------------------------------------------------------------- -// wxPrivateDropTarget -//------------------------------------------------------------------------- + GtkWidget *m_widget; + GtkWidget *m_iconWindow; + GdkDragContext *m_dragContext; + wxWindow *m_window; -class wxPrivateDropTarget: public wxDropTarget -{ -public: + wxDragResult m_retValue; + wxIcon m_iconCopy, + m_iconMove, + m_iconNone; - wxPrivateDropTarget(); - - // you have to override OnDrop to get at the data - - // 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 ); - - wxString GetId() - { return m_id; } + bool m_waiting; private: + // common part of both ctors + void SetIcons(const wxIcon& copy, + const wxIcon& move, + const wxIcon& none); - virtual size_t GetFormatCount() const; - - wxString m_id; -}; - -//---------------------------------------------------------------------------- -// A drop target which accepts files (dragged from File Manager or Explorer) -//---------------------------------------------------------------------------- - -class wxFileDropTarget: public wxDropTarget -{ - public: - - wxFileDropTarget(); - - virtual bool OnDrop( long x, long y, const void *data, size_t size ); - virtual bool OnDropFiles( long x, long y, - size_t nFiles, const char * const aszFiles[] ); + // GTK implementation + void GTKConnectDragSignals(); + void GTKDisconnectDragSignals(); - protected: - - virtual size_t GetFormatCount() const; }; -#endif - - -#endif - - // wxUSE_DRAG_AND_DROP - -#endif - //__GTKDNDH__ +#endif // _WX_GTK_DND_H_