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1. wxPostEvent added and documented

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2. Made it possible to have wxDataObjects which support multiple formats
   painlessly
3. Extensively modified dnd sample to show a "real life" wxDataObject


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4028 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
1999-10-17 01:18:49 +00:00
parent 6d693bb4fc
commit 8e193f384f
24 changed files with 1359 additions and 637 deletions
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65
include/wx/gtk/dnd.h
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@@ -49,22 +49,22 @@ public:
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
/* 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
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 );
@@ -75,21 +75,21 @@ public:
/* called to query what formats are available */
bool IsSupported( wxDataFormat format );
/* fill data with data from the dragging source */
bool GetData( wxDataObject *data );
// implementation
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; }
@@ -109,10 +109,10 @@ public:
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;
};
//-------------------------------------------------------------------------
@@ -128,21 +128,21 @@ public:
wxPrivateDropTarget();
/* see SetId() below for explanation */
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 );
/* 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:
wxString m_id;
@@ -155,13 +155,13 @@ private:
class wxFileDropTarget: public wxDropTarget
{
public:
wxFileDropTarget() {}
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 OnDropFiles to get at the file names */
virtual bool OnDropFiles( long x, long y, size_t nFiles, const wxChar * const aszFiles[] ) = 0;
@@ -186,43 +186,46 @@ 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 );
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 );
// this one isn't portable to wxMSW -- deprecated
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;
bool m_waiting;
};
@@ -230,6 +233,6 @@ public:
// wxUSE_DRAG_AND_DROP
#endif
#endif
//__GTKDNDH__