Set minsize and implement DoGetBestSize

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

diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp
index ef602b5ea8c753f1ed4844e213a66892be6f261c..9372246ca327a632f023718c2bd15bfe408e1d5e 100644 (file)
--- a/src/gtk/dcclient.cpp
+++ b/src/gtk/dcclient.cpp
@@ -1473,6 +1473,8 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
     const wxCharBuffer data = wxConvUTF8.cWC2MB( text );
 #else
     const wxWCharBuffer wdata = wxConvLocal.cMB2WC( text );
+    if ( !wdata )
+        return;
     const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
 #endif
     size_t datalen = strlen((const char*)data);
@@ -1714,7 +1716,11 @@ void wxWindowDC::DoGetTextExtent(const wxString &string,
 #else
     const wxWCharBuffer wdata = wxConvLocal.cMB2WC( string );
     if ( !wdata )
+    {
+        if (width) (*width) = 0;
+        if (height) (*height) = 0;
         return;
+    }
     const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
     const char *dataUTF8 = (const char *)data;
 #endif
@@ -1736,8 +1742,10 @@ void wxWindowDC::DoGetTextExtent(const wxString &string,
         *height = (wxCoord) h;
     if (descent)
     {
-        // Do something about metrics here. TODO.
-        *descent = 0;
+        PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
+        int baseline = pango_layout_iter_get_baseline(iter);
+        pango_layout_iter_free(iter);
+        *descent = h - PANGO_PIXELS(baseline);
     }
     if (externalLeading)
         *externalLeading = 0;  // ??