X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0d2a2b601b1994333886dff8f53d82a714c4042f..0c5d3e1ccd1d27ab0cf913ddbffb1b54b5802f3a:/include/wx/gtk/dnd.h diff --git a/include/wx/gtk/dnd.h b/include/wx/gtk/dnd.h index 998f656c59..2dba9cef49 100644 --- a/include/wx/gtk/dnd.h +++ b/include/wx/gtk/dnd.h @@ -23,16 +23,8 @@ #include "wx/string.h" #include "wx/dataobj.h" #include "wx/cursor.h" - -//------------------------------------------------------------------------- -// conditional compilation -//------------------------------------------------------------------------- - -#if (GTK_MINOR_VERSION == 1) -#if (GTK_MICRO_VERSION >= 3) -#define NEW_GTK_DND_CODE -#endif -#endif +#include "wx/icon.h" +#include "wx/gdicmn.h" //------------------------------------------------------------------------- // classes @@ -53,26 +45,55 @@ class wxDropSource; class wxDropTarget: public wxObject { - public: +public: - wxDropTarget(); - ~wxDropTarget(); + wxDropTarget(); + ~wxDropTarget(); - virtual void OnEnter() { } - virtual void OnLeave() { } - virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0; - - // Override these to indicate what kind of data you support: + /* 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. always returns TRUE by default + indicating that you'd accept the data from the drag. */ + virtual bool OnMove( long x, long y ); + + /* 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 ); - virtual size_t GetFormatCount() const = 0; - virtual wxDataFormat &GetFormat(size_t n) const; + /* 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 ); + + /* called from within OnDrop() to request a certain format + from the drop event. */ + bool RequestData( wxDataFormat format ); + + /* called to query what formats are available */ + bool IsSupported( wxDataFormat format ); - // implementation + /* fill data with data from the dragging source */ + bool GetData( wxDataObject *data ); + +// implementation - void RegisterWidget( GtkWidget *widget ); - void UnregisterWidget( GtkWidget *widget ); - - wxDataFormat *m_format; + 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; } }; //------------------------------------------------------------------------- @@ -81,15 +102,17 @@ class wxDropTarget: public wxObject class wxTextDropTarget: public wxDropTarget { - public: +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 ); + 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; - protected: - - virtual size_t GetFormatCount() const; }; //------------------------------------------------------------------------- @@ -100,25 +123,29 @@ 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 ); - // 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; } - + 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: - virtual size_t GetFormatCount() const; - - wxString m_id; + wxString m_id; }; //---------------------------------------------------------------------------- @@ -127,17 +154,17 @@ private: class wxFileDropTarget: public wxDropTarget { - public: +public: - wxFileDropTarget(); + 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: + virtual bool OnMove( long x, long y ); + virtual bool OnDrop( long x, long y ); + virtual bool OnData( long x, long y ); - virtual size_t GetFormatCount() const; + /* 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; + }; //------------------------------------------------------------------------- @@ -155,35 +182,35 @@ enum wxDragResult class wxDropSource: public wxObject { - public: +public: - /* constructor. set data later with SetData() */ - wxDropSource( wxWindow *win ); - - /* constructor for setting one data object */ - wxDropSource( wxDataObject *data, wxWindow *win ); - - /* constructor for setting several data objects via wxDataBroker */ - wxDropSource( wxDataBroker *data, wxWindow *win ); + /* constructor. set data later with SetData() */ + wxDropSource( wxWindow *win, const wxIcon &go = wxNullIcon, const wxIcon &stop = wxNullIcon ); - ~wxDropSource(void); + /* constructor for setting one data object */ + wxDropSource( wxDataObject *data, wxWindow *win, const wxIcon &go = wxNullIcon, const wxIcon &stop = wxNullIcon ); - /* set one dataobject */ - void SetData( wxDataBroker *data ); - - /* set severa dataobjects via wxDataBroker */ - void SetData( wxDataObject *data ); + /* constructor for setting several data objects via wxDataBroker */ + wxDropSource( wxDataBroker *data, wxWindow *win ); + + ~wxDropSource(); - /* start drag action */ - wxDragResult DoDragDrop( bool bAllowMove = FALSE ); + /* 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; } + /* override to give feedback */ + virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; } /* GTK implementation */ - void RegisterWindow(void); - void UnregisterWindow(void); + void RegisterWindow(); + void UnregisterWindow(); GtkWidget *m_widget; wxWindow *m_window; @@ -192,6 +219,11 @@ class wxDropSource: public wxObject wxCursor m_defaultCursor; wxCursor m_goaheadCursor; + + wxIcon m_goIcon; + wxIcon m_stopIcon; + + bool m_waiting; }; #endif