some != NULL checks

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

diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index 0571f48fe4a20fad2ff53a4c456d706c217a0829..40e9370a104bf907598e10f4247c08695b9d903c 100644 (file)
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -101,17 +101,7 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;
 
-    wxSize newSize = size,
-           bestSize = DoGetBestSize();
-
-    if (newSize.x == -1)
-        newSize.x = bestSize.x;
-    if (newSize.y == -1)
-        newSize.y = bestSize.y;
-    if (newSize.y > 22)
-        newSize.y = 22;
-
-    if (!PreCreation( parent, pos, newSize ) ||
+    if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
     {
         wxFAIL_MSG( wxT("wxComboBox creation failed") );
@@ -158,9 +148,19 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 
+    wxSize size_best( DoGetBestSize() );
+    wxSize new_size( size );
+    if (new_size.x == -1)
+        new_size.x = size_best.x;
+    if (new_size.y == -1)
+        new_size.y = size_best.y;
+    if (new_size.y > size_best.y)
+        new_size.y = size_best.y;
+    if ((new_size.x != size.x) || (new_size.y != size.y))
+        SetSize( new_size.x, new_size.y );
+
     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
     SetForegroundColour( parent->GetForegroundColour() );
-    SetFont( parent->GetFont() );
 
     Show( TRUE );
 
@@ -665,8 +665,29 @@ bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 
 wxSize wxComboBox::DoGetBestSize() const
 {
-    // totally bogus - should measure the strings in the combo!
-    return wxSize(100, 22);
+    wxSize ret( wxControl::DoGetBestSize() );
+
+    // we know better our horizontal extent: it depends on the longest string
+    // in the combobox
+    ret.x = 0;
+    if ( m_widget )
+    {
+        GdkFont *font = m_font.GetInternalFont();
+
+        wxCoord width;
+        size_t count = Number();
+        for ( size_t n = 0; n < count; n++ )
+        {
+            width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
+            if ( width > ret.x )
+                ret.x = width;
+        }
+    }
+
+    // empty combobox should have some reasonable default size too
+    if ( ret.x < 100 )
+        ret.x = 100;
+    return ret;
 }
 
 #endif