SetLabel() adjusts the label size

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

diff --git a/src/gtk/clipbrd.cpp b/src/gtk/clipbrd.cpp
index 11096c3a4c763b21e9efa8c0b5c10951ae6db2ad..9dd96f96b63cf7e1a131cf24cdb8859281bd7bad 100644 (file)
--- a/src/gtk/clipbrd.cpp
+++ b/src/gtk/clipbrd.cpp
@@ -25,7 +25,6 @@
 
 wxClipboard *wxTheClipboard = (wxClipboard*) NULL;
 
-GdkAtom  g_textAtom        = 0;
 GdkAtom  g_clipboardAtom   = 0;
 GdkAtom  g_targetsAtom     = 0;
 
@@ -75,6 +74,9 @@ targets_selection_received( GtkWidget *WXUNUSED(widget),
 
     for (unsigned int i=0; i<selection_data->length/sizeof(GdkAtom); i++)
     {
+      char *name = gdk_atom_name (atoms[i]);
+      if (name) printf( "Format available: %s.\n", name );
+      
         if (atoms[i] == clipboard->m_targetRequested)
         {
             clipboard->m_formatSupported = TRUE;
@@ -292,7 +294,6 @@ wxClipboard::wxClipboard()
                        (gpointer) NULL );
                      
     if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE );
-    if (!g_textAtom) g_textAtom = gdk_atom_intern( "TEXT", FALSE );
     if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE);
   
     m_formatSupported = FALSE;
@@ -344,68 +345,95 @@ bool wxClipboard::Open()
     return TRUE;
 }
 
-bool wxClipboard::SetData( wxDataBroker *data )
+bool wxClipboard::SetData( wxDataObject *data )
 {
+    wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
+  
     wxCHECK_MSG( data, FALSE, "data is invalid" );
   
     Clear();
+
+    return AddData( data );
+}
+
+bool wxClipboard::AddData( wxDataObject *data )
+{
+    wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
   
-    m_dataBroker = data;
+    wxCHECK_MSG( data, FALSE, "data is invalid" );
     
-    if (!m_dataBroker) return FALSE;
+    /* if clipboard has been cleared before, create new data broker */
   
-    wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
+    if (!m_dataBroker) m_dataBroker = new wxDataBroker();
   
-    wxNode *node = m_dataBroker->m_dataObjects.First();
-    while (node)
-    {
-        wxDataObject *dobj = (wxDataObject*)node->Data();
-       
-       GdkAtom format = dobj->GetFormat().GetAtom();
+    /* add new data to list of offered data objects */
+  
+    m_dataBroker->Add( data );
+    
+    /* get native format id of new data object */
+    
+    GdkAtom format = data->GetFormat().GetAtom();
        
-       if (format != (GdkAtom) 0)
-       {
-            /* This should happen automatically */
+    wxCHECK_MSG( format, FALSE, "data has invalid format" );
+    
+    /* This should happen automatically, but to be on the safe side */
       
-            m_ownsClipboard = FALSE;
-            m_ownsPrimarySelection = FALSE;
+    m_ownsClipboard = FALSE;
+    m_ownsPrimarySelection = FALSE;
     
-            /* Add handlers if someone requests data */
+    /* Add handlers if someone requests data */
   
-            gtk_selection_add_handler( m_clipboardWidget, 
+
+#if (GTK_MINOR_VERSION > 0)
+
+    gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), 
+                              GDK_SELECTION_PRIMARY,
+                             format, 
+                             0 );  /* what is info ? */
+                            
+    gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget), 
+                              g_clipboardAtom,
+                             format, 
+                             0 );  /* what is info ? */
+                            
+    gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), 
+                        "selection_get",
+                       GTK_SIGNAL_FUNC(selection_handler), 
+                       (gpointer) NULL );
+
+#else
+
+    gtk_selection_add_handler( m_clipboardWidget, 
                                g_clipboardAtom,
                               format,
                               selection_handler,
                               (gpointer) NULL );
                               
-            gtk_selection_add_handler( m_clipboardWidget, 
+    gtk_selection_add_handler( m_clipboardWidget, 
                                GDK_SELECTION_PRIMARY,
                               format,
                               selection_handler,
                               (gpointer) NULL );
+#endif
                               
-            /* Tell the world we offer clipboard data */
+    /* Tell the world we offer clipboard data */
   
-            if (!gtk_selection_owner_set( m_clipboardWidget, 
+    if (!gtk_selection_owner_set( m_clipboardWidget, 
                                   g_clipboardAtom,
                                  GDK_CURRENT_TIME ))
-            {
-                return FALSE;
-            }
-            m_ownsClipboard = TRUE;
+    {
+        return FALSE;
+    }
+    m_ownsClipboard = TRUE;
     
-            if (!gtk_selection_owner_set( m_clipboardWidget, 
+    if (!gtk_selection_owner_set( m_clipboardWidget, 
                                   GDK_SELECTION_PRIMARY,
                                  GDK_CURRENT_TIME ))
-            {  
-                return FALSE;
-            }
-            m_ownsPrimarySelection = TRUE;
-       }
-       
-       node = node->Next();
+    {  
+        return FALSE;
     }
-                            
+    m_ownsPrimarySelection = TRUE;
+       
     return TRUE;
 }
 
@@ -416,22 +444,16 @@ void wxClipboard::Close()
     m_open = FALSE;
 }
 
-bool wxClipboard::GetData( wxDataObject *data )
+bool wxClipboard::IsSupported( wxDataFormat format )
 {
     wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
     
-    m_receivedData = data;
-    
-    wxCHECK_MSG( m_receivedData, FALSE, "invalid data object" );
-    
-    /* STEP ONE: check if there is such data in the clipboard */
+    /* store requested format to be asked for by callbacks */
     
-    m_targetRequested = data->GetFormat().GetAtom();
+    m_targetRequested = format.GetAtom();
   
     wxCHECK_MSG( m_targetRequested, FALSE, "invalid clipboard format" );
     
-    if (m_targetRequested == 0) return FALSE;
-    
     /* add handler for target (= format) query */
 
     gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), 
@@ -454,8 +476,29 @@ bool wxClipboard::GetData( wxDataObject *data )
                                   (gpointer) this );
   
     if (!m_formatSupported) return FALSE;
+    
+    return TRUE;
+}    
+    
+bool wxClipboard::GetData( wxDataObject *data )
+{
+    wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
+    
+    /* is data supported by clipboard ? */
+    
+    if (!IsSupported( data->GetFormat() )) return FALSE;
+    
+    /* 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 = data->GetFormat().GetAtom();
   
-    /* STEP TWO: get the data from the clipboard */
+    wxCHECK_MSG( m_targetRequested, FALSE, "invalid clipboard format" );
+    
+    /* start query */
     
     m_formatSupported = FALSE;
   
@@ -464,6 +507,8 @@ bool wxClipboard::GetData( wxDataObject *data )
                        GTK_SIGNAL_FUNC( selection_received ), 
                        (gpointer) this );
 
+    /* ask for clipboard contents */
+
     gtk_selection_convert( m_clipboardWidget,
                           g_clipboardAtom, 
                           m_targetRequested,