X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/debe6624c1e9d4bf3243381153d1e173c849bcd8..34f9227c5a7ffde70ef48da7268821082a866134:/include/wx/gtk1/dnd.h diff --git a/include/wx/gtk1/dnd.h b/include/wx/gtk1/dnd.h index 4b27e36da1..3c918bad23 100644 --- a/include/wx/gtk1/dnd.h +++ b/include/wx/gtk1/dnd.h @@ -2,7 +2,7 @@ // Name: dnd.h // Purpose: declaration of the wxDropTarget class // Author: Robert Roebling -// RCS-ID: +// RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling // Licence: wxWindows license /////////////////////////////////////////////////////////////////////////////// @@ -16,9 +16,15 @@ #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 @@ -28,28 +34,204 @@ class wxWindow; class wxDropTarget; class wxTextDropTarget; -class wxDragSource; -class wxTextDragSource; +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) //------------------------------------------------------------------------- // wxDropTarget //------------------------------------------------------------------------- -class wxDropTarget: wxObject +class wxDropTarget: public wxObject +{ +public: + + wxDropTarget(); + ~wxDropTarget(); + + /* may be overridden to react to events */ + virtual void OnEnter(); + virtual void OnLeave(); + virtual bool OnMove( int x, int y ); + + /* has te be overridden to get data */ + virtual bool OnDrop( int x, int y ); + + /* called to query formats available */ + bool IsSupported( wxDataFormat format ); + + /* fill data with data on the clipboard (if available) */ + bool GetData( wxDataObject *data ); + +// implementation + + void RegisterWidget( GtkWidget *widget ); + void UnregisterWidget( GtkWidget *widget ); + + GdkDragContext *m_dragContext; + + void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; } + GdkDragContext *GetDragContext() { return m_dragContext; } +}; + +//------------------------------------------------------------------------- +// wxTextDropTarget +//------------------------------------------------------------------------- + +class wxTextDropTarget: public wxDropTarget +{ +public: + + wxTextDropTarget() {} + + 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; + +}; + +//------------------------------------------------------------------------- +// 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( 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: + + wxString m_id; +}; + +//---------------------------------------------------------------------------- +// A drop target which accepts files (dragged from File Manager or Explorer) +//---------------------------------------------------------------------------- + +class wxFileDropTarget: public wxDropTarget +{ +public: + + wxFileDropTarget() {} + + virtual bool OnMove( int x, int y ); + virtual bool OnDrop( 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 bool OnDrop( long x, long y, const void *pData ) = 0; - - public: + virtual void OnMouseMove( long WXUNUSED(x), long WXUNUSED(y) ) { } + virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0; - void Drop( GdkEvent *event, int x, int y ); - virtual void RegisterWidget( GtkWidget *widget ) = 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; }; //------------------------------------------------------------------------- @@ -60,57 +242,70 @@ class wxTextDropTarget: public wxDropTarget { public: - wxTextDropTarget() {}; - virtual bool OnDrop( long x, long y, const void *pData ); + wxTextDropTarget(); + virtual bool OnDrop( long x, long y, const void *data, size_t size ); virtual bool OnDropText( long x, long y, const char *psz ); - virtual void RegisterWidget( GtkWidget *widget ); + + protected: + + virtual size_t GetFormatCount() const; }; //------------------------------------------------------------------------- -// wxDragSource +// wxPrivateDropTarget //------------------------------------------------------------------------- -class wxDragSource: public wxObject +class wxPrivateDropTarget: public wxDropTarget { - public: +public: - wxDragSource( wxWindow *win ); - ~wxDragSource(void); - void SetData( char *data, long size ); - void Start( int x, int y ); + 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; } - public: +private: - void ConnectWindow(void); - void UnconnectWindow(void); - virtual void RegisterWindow(void) = 0; - void UnregisterWindow(void); - - GtkWidget *m_widget; - wxWindow *m_window; - char *m_data; - long m_size; - wxCursor m_defaultCursor; - wxCursor m_goaheadCursor; + virtual size_t GetFormatCount() const; + + wxString m_id; }; -//------------------------------------------------------------------------- -// wxTextDragSource -//------------------------------------------------------------------------- +//---------------------------------------------------------------------------- +// A drop target which accepts files (dragged from File Manager or Explorer) +//---------------------------------------------------------------------------- -class wxTextDragSource: public wxDragSource +class wxFileDropTarget: public wxDropTarget { public: - - wxTextDragSource( wxWindow *win ) : wxDragSource(win) {}; - void SetTextData( const wxString &text ); - void RegisterWindow(void); - private: + 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[] ); + + protected: - wxString m_tmp; + virtual size_t GetFormatCount() const; }; +#endif + + +#endif + + // wxUSE_DRAG_AND_DROP + #endif //__GTKDNDH__