New attempt to implement wxNO_FULL_REDRAW_ON_REPAINT.

[wxWidgets.git] / src / gtk1 / clipbrd.cpp

diff --git a/src/gtk1/clipbrd.cpp b/src/gtk1/clipbrd.cpp
index 023cdad83c1c47a67c6fc5bf905b7b5236782ef6..c6edc527b1d980eff1b786ecec9ab9c15fb36e7a 100644 (file)
--- a/src/gtk1/clipbrd.cpp
+++ b/src/gtk1/clipbrd.cpp
@@ -1,10 +1,10 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        clipbrd.cpp
+// Name:        gtk/clipbrd.cpp

 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling

-// Licence:           wxWindows licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__


@@ -19,34 +19,35 @@
 #include "wx/utils.h"
 #include "wx/log.h"
 
 #include "wx/utils.h"
 #include "wx/log.h"
 

-#include "glib.h"
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include <glib.h>
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>

 
 //-----------------------------------------------------------------------------
 // thread system
 //-----------------------------------------------------------------------------
 
 #if wxUSE_THREADS
 
 //-----------------------------------------------------------------------------
 // thread system
 //-----------------------------------------------------------------------------
 
 #if wxUSE_THREADS

-extern void wxapp_install_thread_wakeup();
-extern void wxapp_uninstall_thread_wakeup();

 #endif
 
 //-----------------------------------------------------------------------------
 // data
 //-----------------------------------------------------------------------------
 
 #endif
 
 //-----------------------------------------------------------------------------
 // data
 //-----------------------------------------------------------------------------
 

-wxClipboard *wxTheClipboard = (wxClipboard*) NULL;
-

 GdkAtom  g_clipboardAtom   = 0;
 GdkAtom  g_targetsAtom     = 0;
 
 GdkAtom  g_clipboardAtom   = 0;
 GdkAtom  g_targetsAtom     = 0;
 

+// the trace mask we use with wxLogTrace() - call
+// wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here
+// (there will be a *lot* of them!)
+static const wxChar *TRACE_CLIPBOARD = _T("clipboard");
+

 //-----------------------------------------------------------------------------
 // reminder
 //-----------------------------------------------------------------------------
 
 /* The contents of a selection are returned in a GtkSelectionData
 //-----------------------------------------------------------------------------
 // reminder
 //-----------------------------------------------------------------------------
 
 /* The contents of a selection are returned in a GtkSelectionData

-   structure. selection/target identify the request. 
+   structure. selection/target identify the request.

    type specifies the type of the return; if length < 0, and
    the data should be ignored. This structure has object semantics -
    no fields should be modified directly, they should not be created
    type specifies the type of the return; if length < 0, and
    the data should be ignored. This structure has object semantics -
    no fields should be modified directly, they should not be created


@@ -59,9 +60,9 @@ struct _GtkSelectionData
   GdkAtom selection;
   GdkAtom target;
   GdkAtom type;
   GdkAtom selection;
   GdkAtom target;
   GdkAtom type;

-  gint          format;
+  gint    format;

   guchar *data;
   guchar *data;

-  gint          length;
+  gint    length;

 };
 
 */
 };
 
 */


@@ -71,58 +72,66 @@ struct _GtkSelectionData
 //-----------------------------------------------------------------------------
 
 static void
 //-----------------------------------------------------------------------------
 
 static void

-targets_selection_received( GtkWidget *WXUNUSED(widget), 
-                            GtkSelectionData *selection_data, 
+targets_selection_received( GtkWidget *WXUNUSED(widget),
+                            GtkSelectionData *selection_data,

 #if (GTK_MINOR_VERSION > 0)
                             guint32 WXUNUSED(time),
 #endif
                             wxClipboard *clipboard )
 {
 #if (GTK_MINOR_VERSION > 0)
                             guint32 WXUNUSED(time),
 #endif
                             wxClipboard *clipboard )
 {

-    if (!wxTheClipboard)
-    {
-        clipboard->m_waiting = FALSE;
-        return;
-    }
-  
-    if (selection_data->length <= 0)
-    {
-        clipboard->m_waiting = FALSE;
-        return;
-    }
-    
-    /* make sure we got the data in the correct form */
-    if (selection_data->type != GDK_SELECTION_TYPE_ATOM)
+    if ( wxTheClipboard && selection_data->length > 0 )

     {
     {

-        clipboard->m_waiting = FALSE;
-        return;
-    }
-  
-    // the atoms we received, holding a list of targets (= formats) 
-    GdkAtom *atoms = (GdkAtom *)selection_data->data;
+        /* make sure we got the data in the correct form */
+        GdkAtom type = selection_data->type;
+        if ( type != GDK_SELECTION_TYPE_ATOM )
+        {
+            if ( strcmp(gdk_atom_name(type), "TARGETS") )
+            {
+                wxLogTrace( TRACE_CLIPBOARD,
+                            _T("got unsupported clipboard target") );
+
+                clipboard->m_waiting = FALSE;
+                return;
+            }
+        }

 
 

-    for (unsigned int i=0; i<selection_data->length/sizeof(GdkAtom); i++)
-    {
-        wxDataFormat format( atoms[i] );
-      
-        if (format == clipboard->m_targetRequested)
+#ifdef __WXDEBUG__
+        wxDataFormat clip( selection_data->selection );
+        wxLogTrace( TRACE_CLIPBOARD,
+                    wxT("selection received for targets, clipboard %s"),
+                    clip.GetId().c_str() );
+#endif // __WXDEBUG__
+
+        // the atoms we received, holding a list of targets (= formats)
+        GdkAtom *atoms = (GdkAtom *)selection_data->data;
+
+        for (unsigned int i=0; i<selection_data->length/sizeof(GdkAtom); i++)

         {
         {

-            clipboard->m_waiting = FALSE;
-            clipboard->m_formatSupported = TRUE;
-            return;
+            wxDataFormat format( atoms[i] );
+
+            wxLogTrace( TRACE_CLIPBOARD,
+                        wxT("selection received for targets, format %s"),
+                        format.GetId().c_str() );
+
+            if (format == clipboard->m_targetRequested)
+            {
+                clipboard->m_waiting = FALSE;
+                clipboard->m_formatSupported = TRUE;
+                return;
+            }

         }
     }
 
     clipboard->m_waiting = FALSE;
         }
     }
 
     clipboard->m_waiting = FALSE;

-    return;

 }
 
 //-----------------------------------------------------------------------------
 // "selection_received" for the actual data
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 // "selection_received" for the actual data
 //-----------------------------------------------------------------------------
 

-static void 
-selection_received( GtkWidget *WXUNUSED(widget), 
-                    GtkSelectionData *selection_data, 
+static void
+selection_received( GtkWidget *WXUNUSED(widget),
+                    GtkSelectionData *selection_data,

 #if (GTK_MINOR_VERSION > 0)
                     guint32 WXUNUSED(time),
 #endif
 #if (GTK_MINOR_VERSION > 0)
                     guint32 WXUNUSED(time),
 #endif


@@ -133,7 +142,7 @@ selection_received( GtkWidget *WXUNUSED(widget),
         clipboard->m_waiting = FALSE;
         return;
     }
         clipboard->m_waiting = FALSE;
         return;
     }

-  
+

     wxDataObject *data_object = clipboard->m_receivedData;
 
     if (!data_object)
     wxDataObject *data_object = clipboard->m_receivedData;
 
     if (!data_object)


@@ -141,15 +150,15 @@ selection_received( GtkWidget *WXUNUSED(widget),
         clipboard->m_waiting = FALSE;
         return;
     }
         clipboard->m_waiting = FALSE;
         return;
     }

-    
+

     if (selection_data->length <= 0)
     {
         clipboard->m_waiting = FALSE;
         return;
     }
     if (selection_data->length <= 0)
     {
         clipboard->m_waiting = FALSE;
         return;
     }

-    
+

     wxDataFormat format( selection_data->target );
     wxDataFormat format( selection_data->target );

-  
+

     /* make sure we got the data in the correct format */
     if (!data_object->IsSupportedFormat( format ) )
     {
     /* make sure we got the data in the correct format */
     if (!data_object->IsSupportedFormat( format ) )
     {


@@ -164,9 +173,9 @@ selection_received( GtkWidget *WXUNUSED(widget),
         clipboard->m_waiting = FALSE;
         return;
     }
         clipboard->m_waiting = FALSE;
         return;
     }

-            
+

     data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data );
     data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data );

-    
+

     wxTheClipboard->m_formatSupported = TRUE;
     clipboard->m_waiting = FALSE;
 }
     wxTheClipboard->m_formatSupported = TRUE;
     clipboard->m_waiting = FALSE;
 }


@@ -179,7 +188,7 @@ static gint
 selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
 {
     if (!wxTheClipboard) return TRUE;
 selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
 {
     if (!wxTheClipboard) return TRUE;

-    
+

     if (event->selection == GDK_SELECTION_PRIMARY)
     {
         wxTheClipboard->m_ownsPrimarySelection = FALSE;
     if (event->selection == GDK_SELECTION_PRIMARY)
     {
         wxTheClipboard->m_ownsPrimarySelection = FALSE;


@@ -194,18 +203,20 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
         wxTheClipboard->m_waiting = FALSE;
         return FALSE;
     }
         wxTheClipboard->m_waiting = FALSE;
         return FALSE;
     }

-    
+

     if ((!wxTheClipboard->m_ownsPrimarySelection) &&
         (!wxTheClipboard->m_ownsClipboard))
     {
         /* the clipboard is no longer in our hands. we can the delete clipboard data. */
         if (wxTheClipboard->m_data)
         {
     if ((!wxTheClipboard->m_ownsPrimarySelection) &&
         (!wxTheClipboard->m_ownsClipboard))
     {
         /* the clipboard is no longer in our hands. we can the delete clipboard data. */
         if (wxTheClipboard->m_data)
         {

+            wxLogTrace(TRACE_CLIPBOARD, wxT("wxClipboard will get cleared" ));
+

             delete wxTheClipboard->m_data;
             wxTheClipboard->m_data = (wxDataObject*) NULL;
         }
     }
             delete wxTheClipboard->m_data;
             wxTheClipboard->m_data = (wxDataObject*) NULL;
         }
     }

-  
+

     wxTheClipboard->m_waiting = FALSE;
     return TRUE;
 }
     wxTheClipboard->m_waiting = FALSE;
     return TRUE;
 }


@@ -215,55 +226,53 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
 //-----------------------------------------------------------------------------
 
 static void
 //-----------------------------------------------------------------------------
 
 static void

-selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data, gpointer WXUNUSED(data) )
+selection_handler( GtkWidget *WXUNUSED(widget),
+                   GtkSelectionData *selection_data,
+                   guint WXUNUSED(info),
+                   guint WXUNUSED(time),
+                   gpointer WXUNUSED(data) )

 {
     if (!wxTheClipboard) return;
 {
     if (!wxTheClipboard) return;

-  
+

     if (!wxTheClipboard->m_data) return;
     if (!wxTheClipboard->m_data) return;

-  
+

     wxDataObject *data = wxTheClipboard->m_data;
     wxDataObject *data = wxTheClipboard->m_data;

-    
+

     wxDataFormat format( selection_data->target );
 
     if (!data->IsSupportedFormat( format )) return;
     wxDataFormat format( selection_data->target );
 
     if (!data->IsSupportedFormat( format )) return;

-  
-    /* this will fail for composite formats */
-    if (format.GetType() == wxDF_TEXT)
-    {
-        wxTextDataObject *text_object = (wxTextDataObject*) data;
-        wxString text( text_object->GetText() );

 
 

+    int size = data->GetDataSize( format );
+
+    if (size == 0) return;
+
+    void *d = malloc(size);
+
+    data->GetDataHere( selection_data->target, d );
+
+    // transform Unicode text into multibyte before putting it on clipboard

 #if wxUSE_UNICODE
 #if wxUSE_UNICODE

-        const wxWX2MBbuf s = text.mbc_str();
-        int len = strlen(s);
-#else // more efficient in non-Unicode
-        const char *s = text.c_str();
-        int len = (int) text.Length();
-#endif
-        gtk_selection_data_set( 
-            selection_data, 
-            GDK_SELECTION_TYPE_STRING, 
-            8*sizeof(gchar),
-            (unsigned char*) (const char*) s,
-            len ); 
-                    
-        return;
+    if ( format.GetType() == wxDF_TEXT )
+    {
+        const wchar_t *wstr = (const wchar_t *)d;
+        size_t len = wxConvCurrent->WC2MB(NULL, wstr, 0);
+        char *str = malloc(len + 1);
+        wxConvCurrent->WC2MB(str, wstr, len);
+        str[len] = '\0';
+
+        free(d);
+        d = str;

     }
     }

+#endif // wxUSE_UNICODE

 
 

-    int size = data->GetDataSize( format );
-    
-    if (size == 0) return;
-    
-    char *d = new char[size];
-    
-    data->GetDataHere( selection_data->target, (void*) d );
-
-    gtk_selection_data_set( 
-        selection_data, 
-        GDK_SELECTION_TYPE_STRING, 
-        8*sizeof(gchar), 
+    gtk_selection_data_set(
+        selection_data,
+        GDK_SELECTION_TYPE_STRING,
+        8*sizeof(gchar),

         (unsigned char*) d,
         (unsigned char*) d,

-        size ); 
+        size );
+
+    free(d);

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -283,43 +292,43 @@ wxClipboard::wxClipboard()
     m_receivedData = (wxDataObject*) NULL;
 
     /* we use m_targetsWidget to query what formats are available */
     m_receivedData = (wxDataObject*) NULL;
 
     /* we use m_targetsWidget to query what formats are available */

-    
+

     m_targetsWidget = gtk_window_new( GTK_WINDOW_POPUP );
     gtk_widget_realize( m_targetsWidget );
 
     m_targetsWidget = gtk_window_new( GTK_WINDOW_POPUP );
     gtk_widget_realize( m_targetsWidget );
 

-    gtk_signal_connect( GTK_OBJECT(m_targetsWidget), 
+    gtk_signal_connect( GTK_OBJECT(m_targetsWidget),

                         "selection_received",
                         "selection_received",

-                        GTK_SIGNAL_FUNC( targets_selection_received ), 
+                        GTK_SIGNAL_FUNC( targets_selection_received ),

                         (gpointer) this );
                         (gpointer) this );

-                        
+

     /* we use m_clipboardWidget to get and to offer data */
     /* we use m_clipboardWidget to get and to offer data */

-    
+

     m_clipboardWidget = gtk_window_new( GTK_WINDOW_POPUP );
     gtk_widget_realize( m_clipboardWidget );
 
     m_clipboardWidget = gtk_window_new( GTK_WINDOW_POPUP );
     gtk_widget_realize( m_clipboardWidget );
 

-    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), 
+    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),

                         "selection_received",
                         "selection_received",

-                        GTK_SIGNAL_FUNC( selection_received ), 
+                        GTK_SIGNAL_FUNC( selection_received ),

                         (gpointer) this );
 
                         (gpointer) this );
 

-    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), 
+    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),

                         "selection_clear_event",
                         "selection_clear_event",

-                        GTK_SIGNAL_FUNC( selection_clear_clip ), 
+                        GTK_SIGNAL_FUNC( selection_clear_clip ),

                         (gpointer) NULL );
                         (gpointer) NULL );

-                      
+

     if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE );
     if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE);
     if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE );
     if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE);

-  
+

     m_formatSupported = FALSE;
     m_targetRequested = 0;
     m_formatSupported = FALSE;
     m_targetRequested = 0;

-    
+

     m_usePrimary = FALSE;
 }
 
 wxClipboard::~wxClipboard()
 {
     m_usePrimary = FALSE;
 }
 
 wxClipboard::~wxClipboard()
 {

-    Clear();  
-  
+    Clear();
+

     if (m_clipboardWidget) gtk_widget_destroy( m_clipboardWidget );
     if (m_targetsWidget) gtk_widget_destroy( m_targetsWidget );
 }
     if (m_clipboardWidget) gtk_widget_destroy( m_clipboardWidget );
     if (m_targetsWidget) gtk_widget_destroy( m_targetsWidget );
 }


@@ -330,41 +339,41 @@ void wxClipboard::Clear()
     {
 #if wxUSE_THREADS
         /* disable GUI threads */
     {
 #if wxUSE_THREADS
         /* disable GUI threads */

-        wxapp_uninstall_thread_wakeup();

 #endif
 #endif

-    
+

         /*  As we have data we also own the clipboard. Once we no longer own
             it, clear_selection is called which will set m_data to zero */
         if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window)
         {
             m_waiting = TRUE;
         /*  As we have data we also own the clipboard. Once we no longer own
             it, clear_selection is called which will set m_data to zero */
         if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window)
         {
             m_waiting = TRUE;

-            
-            gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, GDK_CURRENT_TIME );
-            
+
+            gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom,
+                                     (guint32) GDK_CURRENT_TIME );
+

             while (m_waiting) gtk_main_iteration();
         }
             while (m_waiting) gtk_main_iteration();
         }

-    
+

         if (gdk_selection_owner_get( GDK_SELECTION_PRIMARY ) == m_clipboardWidget->window)
         {
             m_waiting = TRUE;
         if (gdk_selection_owner_get( GDK_SELECTION_PRIMARY ) == m_clipboardWidget->window)
         {
             m_waiting = TRUE;

-            
-            gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME );
-            
+
+            gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY,
+                                     (guint32) GDK_CURRENT_TIME );
+

             while (m_waiting) gtk_main_iteration();
         }
             while (m_waiting) gtk_main_iteration();
         }

-    
+

         if (m_data)
         if (m_data)

-        { 
+        {

             delete m_data;
             m_data = (wxDataObject*) NULL;
         }
             delete m_data;
             m_data = (wxDataObject*) NULL;
         }

-        
+

 #if wxUSE_THREADS
         /* re-enable GUI threads */
 #if wxUSE_THREADS
         /* re-enable GUI threads */

-        wxapp_install_thread_wakeup();

 #endif
     }
 #endif
     }

-  
+

     m_targetRequested = 0;
     m_formatSupported = FALSE;
 }
     m_targetRequested = 0;
     m_formatSupported = FALSE;
 }


@@ -372,18 +381,18 @@ void wxClipboard::Clear()
 bool wxClipboard::Open()
 {
     wxCHECK_MSG( !m_open, FALSE, wxT("clipboard already open") );
 bool wxClipboard::Open()
 {
     wxCHECK_MSG( !m_open, FALSE, wxT("clipboard already open") );

-  
+

     m_open = TRUE;
     m_open = TRUE;

-    
+

     return TRUE;
 }
 
 bool wxClipboard::SetData( wxDataObject *data )
 {
     wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );
     return TRUE;
 }
 
 bool wxClipboard::SetData( wxDataObject *data )
 {
     wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );

-  
+

     wxCHECK_MSG( data, FALSE, wxT("data is invalid") );
     wxCHECK_MSG( data, FALSE, wxT("data is invalid") );

-  
+

     Clear();
 
     return AddData( data );
     Clear();
 
     return AddData( data );


@@ -392,91 +401,67 @@ bool wxClipboard::SetData( wxDataObject *data )
 bool wxClipboard::AddData( wxDataObject *data )
 {
     wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );
 bool wxClipboard::AddData( wxDataObject *data )
 {
     wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );

-  
+

     wxCHECK_MSG( data, FALSE, wxT("data is invalid") );
     wxCHECK_MSG( data, FALSE, wxT("data is invalid") );

-    
+

     /* we can only store one wxDataObject */
     Clear();
     /* we can only store one wxDataObject */
     Clear();

-  
+

     m_data = data;
 
     m_data = data;
 

-    /* This should happen automatically, but to be on the safe side */
-    m_ownsClipboard = FALSE;
-    m_ownsPrimarySelection = FALSE;
-    

     /* get formats from wxDataObjects */
     wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
     m_data->GetAllFormats( array );
     /* get formats from wxDataObjects */
     wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
     m_data->GetAllFormats( array );

-    
+
+    /* primary selection or clipboard */
+    GdkAtom clipboard = m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
+                                     : g_clipboardAtom;
+
+

     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {
     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {

-        GdkAtom atom = array[i];
-        wxLogDebug( wxT("Clipboard Supported atom %s"), gdk_atom_name( atom ) );
-
-        /* Add handlers if someone requests data. We currently always
-           offer data to the clipboard and the primary selection. Maybe
-           we should make that depend on the usePrimary flag */
-           
-        gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), 
-                              GDK_SELECTION_PRIMARY,
-                              atom, 
-                              0 );  /* what is info ? */
-                             
-        gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), 
-                              g_clipboardAtom,
-                              atom, 
-                              0 );  /* what is info ? */
+        wxLogTrace( TRACE_CLIPBOARD,
+                    wxT("wxClipboard now supports atom %s"),
+                    array[i].GetId().c_str() );
+
+        gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
+                                  clipboard,
+                                  array[i],
+                                  0 );  /* what is info ? */

     }
 
     delete[] array;
     }
 
     delete[] array;

-                             
-    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), 
+
+    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),

                         "selection_get",
                         "selection_get",

-                        GTK_SIGNAL_FUNC(selection_handler), 
+                        GTK_SIGNAL_FUNC(selection_handler),

                         (gpointer) NULL );
 
 #if wxUSE_THREADS
                         (gpointer) NULL );
 
 #if wxUSE_THREADS

-        /* disable GUI threads */
-        wxapp_uninstall_thread_wakeup();
+    /* disable GUI threads */

 #endif
 #endif

-    
+

     /* Tell the world we offer clipboard data */
     /* Tell the world we offer clipboard data */

-    if (!gtk_selection_owner_set( m_clipboardWidget, 
-                                  g_clipboardAtom,
-                                  GDK_CURRENT_TIME ))
-    {
-#if wxUSE_THREADS
-        /* re-enable GUI threads */
-        wxapp_install_thread_wakeup();
-#endif
-        return FALSE;
-    }
-    m_ownsClipboard = TRUE;
-    
-    if (!gtk_selection_owner_set( m_clipboardWidget, 
-                                  GDK_SELECTION_PRIMARY,
-                                  GDK_CURRENT_TIME ))
-    {  
-#if wxUSE_THREADS
-        /* re-enable GUI threads */
-        wxapp_install_thread_wakeup();
-#endif
-        return FALSE;
-    }
-    m_ownsPrimarySelection = TRUE;
-    
+    bool res = (gtk_selection_owner_set( m_clipboardWidget,
+                                         clipboard,
+                                         (guint32) GDK_CURRENT_TIME ));
+
+    if (m_usePrimary)
+        m_ownsPrimarySelection = res;
+    else
+        m_ownsClipboard = res;
+

 #if wxUSE_THREADS
     /* re-enable GUI threads */
 #if wxUSE_THREADS
     /* re-enable GUI threads */

-    wxapp_install_thread_wakeup();

 #endif
 #endif

-        
-    return TRUE;
+
+    return res;

 }
 
 void wxClipboard::Close()
 {
     wxCHECK_RET( m_open, wxT("clipboard not open") );
 }
 
 void wxClipboard::Close()
 {
     wxCHECK_RET( m_open, wxT("clipboard not open") );

-    
+

     m_open = FALSE;
 }
 
     m_open = FALSE;
 }
 


@@ -488,96 +473,133 @@ bool wxClipboard::IsOpened() const
 bool wxClipboard::IsSupported( const wxDataFormat& format )
 {
     /* reentrance problems */
 bool wxClipboard::IsSupported( const wxDataFormat& format )
 {
     /* reentrance problems */

-    if (m_open) return TRUE;
-    
+    if (m_waiting) return FALSE;
+

     /* store requested format to be asked for by callbacks */
     m_targetRequested = format;
     /* store requested format to be asked for by callbacks */
     m_targetRequested = format;

-  
+
+#if 0
+    wxLogTrace( TRACE_CLIPBOARD,
+                wxT("wxClipboard:IsSupported: requested format: %s"),
+                format.GetId().c_str() );
+#endif
+

     wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
     wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );

-    
+

     m_formatSupported = FALSE;
     m_formatSupported = FALSE;

-  
-    /* perform query. this will set m_formatSupported to 
+
+    /* perform query. this will set m_formatSupported to

        TRUE if m_targetRequested is supported.
        TRUE if m_targetRequested is supported.

-       alsom we have to wait for the "answer" from the 
+       also, we have to wait for the "answer" from the

        clipboard owner which is an asynchronous process.
        therefore we set m_waiting = TRUE here and wait
        clipboard owner which is an asynchronous process.
        therefore we set m_waiting = TRUE here and wait

-       until the callback "targets_selection_received" 
+       until the callback "targets_selection_received"

        sets it to FALSE */
 
     m_waiting = TRUE;
 
     gtk_selection_convert( m_targetsWidget,
                            m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
        sets it to FALSE */
 
     m_waiting = TRUE;
 
     gtk_selection_convert( m_targetsWidget,
                            m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY

-                                        : g_clipboardAtom, 
+                                        : g_clipboardAtom,

                            g_targetsAtom,
                            g_targetsAtom,

-                           GDK_CURRENT_TIME );
+                           (guint32) GDK_CURRENT_TIME );

 
     while (m_waiting) gtk_main_iteration();
 
     while (m_waiting) gtk_main_iteration();

-    
+

     if (!m_formatSupported) return FALSE;
     if (!m_formatSupported) return FALSE;

-    
+

     return TRUE;
     return TRUE;

-}    
-    
+}
+

 bool wxClipboard::GetData( wxDataObject& data )
 {
     wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );
 bool wxClipboard::GetData( wxDataObject& data )
 {
     wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );

-    
+

     /* get formats from wxDataObjects */
     wxDataFormat *array = new wxDataFormat[ data.GetFormatCount() ];
     data.GetAllFormats( array );
     /* get formats from wxDataObjects */
     wxDataFormat *array = new wxDataFormat[ data.GetFormatCount() ];
     data.GetAllFormats( array );

-    
+

     for (size_t i = 0; i < data.GetFormatCount(); i++)
     {
         wxDataFormat format( array[i] );
     for (size_t i = 0; i < data.GetFormatCount(); i++)
     {
         wxDataFormat format( array[i] );

-    
-        wxLogDebug( wxT("wxClipboard::GetData: request format %s"), format.GetId().c_str() );
-    
+
+        wxLogTrace( TRACE_CLIPBOARD,
+                    wxT("wxClipboard::GetData: requested format: %s"),
+                    format.GetId().c_str() );
+

         /* is data supported by clipboard ? */
         /* is data supported by clipboard ? */

-        if (!IsSupported( format ))
-           continue;
-    
+
+        /* store requested format to be asked for by callbacks */
+        m_targetRequested = format;
+
+        wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
+
+        m_formatSupported = FALSE;
+
+       /* perform query. this will set m_formatSupported to
+          TRUE if m_targetRequested is supported.
+          also, we have to wait for the "answer" from the
+          clipboard owner which is an asynchronous process.
+          therefore we set m_waiting = TRUE here and wait
+          until the callback "targets_selection_received"
+          sets it to FALSE */
+
+        m_waiting = TRUE;
+
+        gtk_selection_convert( m_targetsWidget,
+                           m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
+                                        : g_clipboardAtom,
+                           g_targetsAtom,
+                           (guint32) GDK_CURRENT_TIME );
+
+        while (m_waiting) gtk_main_iteration();
+
+        if (!m_formatSupported) continue;
+

         /* store pointer to data object to be filled up by callbacks */
         m_receivedData = &data;
         /* store pointer to data object to be filled up by callbacks */
         m_receivedData = &data;

-    
+

         /* store requested format to be asked for by callbacks */
         m_targetRequested = format;
         /* store requested format to be asked for by callbacks */
         m_targetRequested = format;

-  
+

         wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
         wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );

-    
+

         /* start query */
         m_formatSupported = FALSE;
         /* start query */
         m_formatSupported = FALSE;

-  
-        /* ask for clipboard contents.  this will set 
-           m_formatSupported to TRUE if m_targetRequested 
+
+        /* ask for clipboard contents.  this will set
+           m_formatSupported to TRUE if m_targetRequested

            is supported.
            is supported.

-           also, we have to wait for the "answer" from the 
+           also, we have to wait for the "answer" from the

            clipboard owner which is an asynchronous process.
            therefore we set m_waiting = TRUE here and wait
            clipboard owner which is an asynchronous process.
            therefore we set m_waiting = TRUE here and wait

-           until the callback "targets_selection_received" 
+           until the callback "targets_selection_received"

            sets it to FALSE */
 
         m_waiting = TRUE;
 
            sets it to FALSE */
 
         m_waiting = TRUE;
 

-        wxLogDebug( wxT("wxClipboard::GetData: format found, start convert") );
-    
+        wxLogTrace( TRACE_CLIPBOARD,
+                    wxT("wxClipboard::GetData: format found, start convert") );
+

         gtk_selection_convert( m_clipboardWidget,
                                m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
         gtk_selection_convert( m_clipboardWidget,
                                m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY

-                                            : g_clipboardAtom, 
+                                            : g_clipboardAtom,

                                m_targetRequested,
                                m_targetRequested,

-                               GDK_CURRENT_TIME );
-  
+                               (guint32) GDK_CURRENT_TIME );
+

         while (m_waiting) gtk_main_iteration();
 
         /* this is a true error as we checked for the presence of such data before */
         wxCHECK_MSG( m_formatSupported, FALSE, wxT("error retrieving data from clipboard") );
         while (m_waiting) gtk_main_iteration();
 
         /* this is a true error as we checked for the presence of such data before */
         wxCHECK_MSG( m_formatSupported, FALSE, wxT("error retrieving data from clipboard") );

-        
+

         /* return success */
         delete[] array;
         return TRUE;
     }
         /* return success */
         delete[] array;
         return TRUE;
     }

-  
+
+    wxLogTrace( TRACE_CLIPBOARD,
+                wxT("wxClipboard::GetData: format not found") );
+

     /* return failure */
     delete[] array;
     return FALSE;
     /* return failure */
     delete[] array;
     return FALSE;