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Further DnD changes. Untested.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4072 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
1999-10-19 22:13:33 +00:00
parent 7cdc2f1e42
commit 8e00741dbd
7 changed files with 241 additions and 570 deletions
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149
include/wx/gtk/dnd.h
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@@ -46,125 +46,50 @@ class wxDropSource;
class wxDropTarget: public wxObject
{
public:
wxDropTarget( wxDataObject *data );
~wxDropTarget();
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. 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 );
/* 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 );
/* fill data with data from the dragging source */
bool GetData( wxDataObject *data );
virtual size_t GetFormatCount() const = 0;
virtual wxDataFormat GetFormat(size_t n) const = 0;
/* may be overridden to react to events */
virtual bool OnEnter( int x, int y );
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( int x, int 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( int x, int y );
/* this gets called once the data has actually arrived.
it will call GetData() to fill up its wxDataObject */
virtual bool OnData( int x, int y );
/* fill data with data from the dragging source */
bool GetData();
// implementation
void RegisterWidget( GtkWidget *widget );
void UnregisterWidget( GtkWidget *widget );
GdkAtom GetMatchingPair();
GdkDragContext *m_dragContext;
GtkWidget *m_dragWidget;
GtkSelectionData *m_dragData;
guint m_dragTime;
bool m_firstMotion; /* gdk has no "gdk_drag_enter" event */
void RegisterWidget( GtkWidget *widget );
void UnregisterWidget( GtkWidget *widget );
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; }
};
wxDataObject *m_data;
GdkDragContext *m_dragContext;
GtkWidget *m_dragWidget;
GtkSelectionData *m_dragData;
guint m_dragTime;
bool m_firstMotion; /* gdk has no "gdk_drag_enter" event */
//-------------------------------------------------------------------------
// wxTextDropTarget
//-------------------------------------------------------------------------
class wxTextDropTarget: public wxDropTarget
{
public:
wxTextDropTarget() {}
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;
virtual size_t GetFormatCount() const
{ return 1; }
virtual wxDataFormat GetFormat(size_t n) const
{ return wxDF_TEXT; }
};
//-------------------------------------------------------------------------
// wxPrivateDropTarget
//-------------------------------------------------------------------------
/*
class wxPrivateDropTarget: public wxDropTarget
{
public:
wxPrivateDropTarget();
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 );
virtual bool OnDropData( long x, long y, void *data, size_t size ) = 0;
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 OnData( long x, long y );
virtual bool OnDropFiles( long x, long y, size_t nFiles, const wxChar * const aszFiles[] ) = 0;
virtual size_t GetFormatCount() const
{ return 1; }
virtual wxDataFormat GetFormat(size_t n) const
{ return wxDF_FILENAME; }
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; }
};
//-------------------------------------------------------------------------