X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dc86cb34c3a8f141686339f1285cf259dec5faaa..b0fb0f3c71c527b5c5cb839355c88766b6f8c888:/include/wx/gtk/dnd.h diff --git a/include/wx/gtk/dnd.h b/include/wx/gtk/dnd.h index e10c9e7c76..c2210c23a3 100644 --- a/include/wx/gtk/dnd.h +++ b/include/wx/gtk/dnd.h @@ -4,21 +4,25 @@ // Author: Robert Roebling // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// #ifndef __GTKDNDH__ #define __GTKDNDH__ -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #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 @@ -26,196 +30,106 @@ class wxWindow; -class wxDataObject; -class wxTextDataObject; -class wxFileDataObject; - class wxDropTarget; class wxTextDropTarget; class wxFileDropTarget; class wxDropSource; +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- + +// 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) + //------------------------------------------------------------------------- -// wxDataObject +// wxDropTarget //------------------------------------------------------------------------- -class wxDataObject: public wxObject +class wxDropTarget: public wxDropTargetBase { public: + wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL ); - wxDataObject() {}; - ~wxDataObject() {}; - - virtual wxDataFormat GetPreferredFormat() const = 0; - virtual bool IsSupportedFormat( wxDataFormat format ) const = 0; - virtual size_t GetDataSize() const = 0; - virtual void GetDataHere( void *data ) const = 0; - -}; - -// ---------------------------------------------------------------------------- -// wxTextDataObject is a specialization of wxDataObject for text data -// ---------------------------------------------------------------------------- + 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(); -class wxTextDataObject : public wxDataObject -{ -public: + // implementation - wxTextDataObject() { } - wxTextDataObject(const wxString& strText) : m_strText(strText) { } - void Init(const wxString& strText) { m_strText = strText; } + GdkAtom GetMatchingPair(); - virtual wxDataFormat GetPreferredFormat() const - { return wxDF_TEXT; } - - virtual bool IsSupportedFormat(wxDataFormat format) const - { return format == wxDF_TEXT; } + void RegisterWidget( GtkWidget *widget ); + void UnregisterWidget( GtkWidget *widget ); - virtual size_t GetDataSize() const - { return m_strText.Len() + 1; } // +1 for trailing '\0' - - virtual void GetDataHere( void *data ) const - { memcpy(data, m_strText.c_str(), GetDataSize()); } + GdkDragContext *m_dragContext; + GtkWidget *m_dragWidget; + GtkSelectionData *m_dragData; + guint m_dragTime; + bool m_firstMotion; // gdk has no "gdk_drag_enter" event -private: - wxString m_strText; - + 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; } }; -// ---------------------------------------------------------------------------- -// wxFileDataObject is a specialization of wxDataObject for file names -// ---------------------------------------------------------------------------- +//------------------------------------------------------------------------- +// wxDropSource +//------------------------------------------------------------------------- -class wxFileDataObject : public wxDataObject +class wxDropSource: public wxDropSourceBase { public: + // constructor. set data later with SetData() + wxDropSource( wxWindow *win = (wxWindow *)NULL, + const wxIcon © = wxNullIcon, + const wxIcon &move = wxNullIcon, + const wxIcon &none = wxNullIcon); - wxFileDataObject(void) { } - void AddFile( const wxString &file ) - { m_files += file; m_files += '\0'; } - - virtual wxDataFormat GetPreferredFormat() const - { return wxDF_FILENAME; } - - virtual bool IsSupportedFormat( wxDataFormat format ) const - { return format == wxDF_FILENAME; } - - virtual size_t GetDataSize() const - { return m_files.Len(); } // no trailing '\0' - - virtual void GetDataHere( void *data ) const - { memcpy(data, m_files.c_str(), GetDataSize()); } + // constructor for setting one data object + wxDropSource( wxDataObject& data, + wxWindow *win, + const wxIcon © = wxNullIcon, + const wxIcon &move = wxNullIcon, + const wxIcon &none = wxNullIcon); -private: - wxString m_files; - -}; -//------------------------------------------------------------------------- -// wxDropTarget -//------------------------------------------------------------------------- + virtual ~wxDropSource(); -class wxDropTarget: public wxObject -{ - public: - - 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: - - virtual size_t GetFormatCount() const = 0; - virtual wxDataFormat GetFormat(size_t n) const = 0; - - // implementation - - void RegisterWidget( GtkWidget *widget ); - void UnregisterWidget( GtkWidget *widget ); -}; + // start drag action + virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); -//------------------------------------------------------------------------- -// wxTextDropTarget -//------------------------------------------------------------------------- + // GTK implementation + void RegisterWindow(); + void UnregisterWindow(); -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; - virtual wxDataFormat GetFormat(size_t n) const; -}; + void PrepareIcon( int action, GdkDragContext *context ); -// ---------------------------------------------------------------------------- -// A drop target which accepts files (dragged from File Manager or Explorer) -// ---------------------------------------------------------------------------- + GtkWidget *m_widget; + GtkWidget *m_iconWindow; + GdkDragContext *m_dragContext; + wxWindow *m_window; -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[] ); - - protected: - - virtual size_t GetFormatCount() const; - virtual wxDataFormat GetFormat(size_t n) const; -}; + wxDragResult m_retValue; + wxIcon m_iconCopy, + m_iconMove, + m_iconNone; -//------------------------------------------------------------------------- -// wxDropSource -//------------------------------------------------------------------------- + bool m_waiting; -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 - wxDragCancel // the operation was cancelled by user (not an error) +private: + // common part of both ctors + void SetIcons(const wxIcon& copy, + const wxIcon& move, + const wxIcon& none); }; -class wxDropSource: public wxObject -{ - public: - - wxDropSource( wxWindow *win ); - wxDropSource( wxDataObject &data, wxWindow *win ); - - ~wxDropSource(void); - - void SetData( wxDataObject &data ); - wxDragResult DoDragDrop( bool bAllowMove = FALSE ); - - virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; }; - - // implementation - - void RegisterWindow(void); - void UnregisterWindow(void); - - GtkWidget *m_widget; - wxWindow *m_window; - wxDragResult m_retValue; - wxDataObject *m_data; - - wxCursor m_defaultCursor; - wxCursor m_goaheadCursor; -}; +#endif // wxUSE_DRAG_AND_DROP -#endif - //__GTKDNDH__ +#endif //__GTKDNDH__