defer creating bitmap representation until it is needed

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

diff --git a/src/gtk/dataobj.cpp b/src/gtk/dataobj.cpp
index f0ed8dcb5a7e1089426e2faf2b215c88f11f05d9..dbe0952d50690e10c689a37d9ec136bce2315454 100644 (file)
--- a/src/gtk/dataobj.cpp
+++ b/src/gtk/dataobj.cpp
@@ -81,10 +81,13 @@ void wxDataFormat::SetType( wxDataFormatId type )
         m_format = g_textAtom;
     else if (m_type == wxDF_TEXT)
         m_format = g_altTextAtom;
-#else
-    if (m_type == wxDF_TEXT || m_type == wxDF_UNICODETEXT)
+#else // !wxUSE_UNICODE
+    // notice that we don't map wxDF_UNICODETEXT to g_textAtom here, this
+    // would lead the code elsewhere to treat data objects with this format as
+    // containing UTF-8 data which is not true
+    if (m_type == wxDF_TEXT)
         m_format = g_textAtom;
-#endif
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
     else
     if (m_type == wxDF_BITMAP)
         m_format = g_pngAtom;
@@ -143,18 +146,20 @@ void wxDataFormat::PrepareFormats()
 {
     // VZ: GNOME included in RedHat 6.1 uses the MIME types below and not the
     //     atoms STRING and file:ALL as the old code was, but normal X apps
-    //     use STRING for text selection when transfering the data via
+    //     use STRING for text selection when transferring the data via
     //     clipboard, for example, so do use STRING for now (GNOME apps will
     //     probably support STRING as well for compatibility anyhow), but use
     //     text/uri-list for file dnd because compatibility is not important
     //     here (with whom?)
     if (!g_textAtom)
+    {
 #if wxUSE_UNICODE
         g_textAtom = gdk_atom_intern( "UTF8_STRING", FALSE );
         g_altTextAtom = gdk_atom_intern( "STRING", FALSE );
 #else
         g_textAtom = gdk_atom_intern( "STRING" /* "text/plain" */, FALSE );
 #endif
+    }
     if (!g_pngAtom)
         g_pngAtom = gdk_atom_intern( "image/png", FALSE );
     if (!g_fileAtom)
@@ -204,13 +209,17 @@ bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction dir)
 // wxTextDataObject
 // ----------------------------------------------------------------------------
 
-#if defined(__WXGTK20__) && wxUSE_UNICODE
-void wxTextDataObject::GetAllFormats(wxDataFormat *formats, wxDataObjectBase::Direction dir) const
+#if wxUSE_UNICODE
+
+void
+wxTextDataObject::GetAllFormats(wxDataFormat *formats,
+                                wxDataObjectBase::Direction WXUNUSED(dir)) const
 {
     *formats++ = GetPreferredFormat();
     *formats = g_altTextAtom;
 }
-#endif
+
+#endif // wxUSE_UNICODE
 
 // ----------------------------------------------------------------------------
 // wxFileDataObject
@@ -252,7 +261,7 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf)
     // (filenames prefixed by "file:") delimited by "\r\n". size includes
     // the trailing zero (in theory, not for Nautilus in early GNOME
     // versions).
-    
+
     m_filenames.Empty();
 
     const gchar *nexttemp = (const gchar*) buf;
@@ -270,7 +279,7 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf)
                     nexttemp = temp+len;
                     break;
                 }
-                    
+
                 return true;
             }
             if (temp[len] == '\r')
@@ -283,17 +292,17 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *buf)
             }
             len++;
         }
-        
+
         if (len == 0)
             break;
-        
+
         // required to give it a trailing zero
         gchar *uri = g_strndup( temp, len );
-    
+
         gchar *fn = g_filename_from_uri( uri, NULL, NULL );
-        
+
         g_free( uri );
-    
+
         if (fn)
         {
             AddFile( wxConvFileName->cMB2WX( fn ) );
@@ -398,4 +407,53 @@ void wxBitmapDataObject::DoConvertToPng()
     image.SaveFile(mstream, wxBITMAP_TYPE_PNG);
 }
 
+// ----------------------------------------------------------------------------
+// wxURLDataObject
+// ----------------------------------------------------------------------------
+
+wxURLDataObject::wxURLDataObject(const wxString& url) :
+   wxDataObjectSimple( wxDataFormat( gdk_atom_intern("text/x-moz-url",FALSE) ) )
+{
+   m_url = url;
+}
+
+size_t wxURLDataObject::GetDataSize() const
+{
+    if (m_url.empty())
+        return 0;
+
+    return 2*m_url.Len()+2;
+}
+
+bool wxURLDataObject::GetDataHere(void *buf) const
+{
+    if (m_url.empty())
+        return false;
+
+    wxCSConv conv( "UCS2" );
+    conv.FromWChar( (char*) buf, 2*m_url.Len()+2, m_url.wc_str() );
+
+    return true;
+}
+
+    // copy data from buffer to our data
+bool wxURLDataObject::SetData(size_t len, const void *buf)
+{
+    if (len == 0)
+    {
+        m_url = wxEmptyString;
+        return false;
+    }
+
+    wxCSConv conv( "UCS2" );
+    wxWCharBuffer res = conv.cMB2WC( (const char*) buf );
+    m_url = res;
+    int pos = m_url.Find( '\n' );
+    if (pos != wxNOT_FOUND)
+        m_url.Remove( pos, m_url.Len() - pos );
+
+    return true;
+}
+
+
 #endif // wxUSE_DATAOBJ