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Fix crash in wxDataViewProgressRenderer in non-Unicode build.

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We can't use the column pointer in wxDataViewProgressRenderer ctor as it's not
set yet, so postpone setting the renderer label until later in non-Unicode
build which needs the font used by this column to do the conversion to UTF-8.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68145 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2011-07-04 09:03:00 +00:00
parent 0cc1991e2a
commit fdd67a6a50
2 changed files with 45 additions and 7 deletions
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8
include/wx/gtk/dvrenderers.h
View File

@ -185,9 +185,17 @@ public:
virtual wxSize GetSize() const;
private:
void GTKSetLabel();
wxString m_label;
int m_value;
#if !wxUSE_UNICODE
// Flag used to indicate that we need to set the label because we were
// unable to do it in the ctor (see comments there).
bool m_needsToSetLabel;
#endif // !wxUSE_UNICODE
protected:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewProgressRenderer)
};

44
src/gtk/dataview.cpp
View File

@ -2459,15 +2459,20 @@ wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
{
m_renderer = (GtkCellRenderer*) gtk_cell_renderer_progress_new();
GValue gvalue = { 0, };
g_value_init( &gvalue, G_TYPE_STRING );
g_value_set_string( &gvalue, wxGTK_CONV_FONT( m_label, GetOwner()->GetOwner()->GetFont() ) );
g_object_set_property( G_OBJECT(m_renderer), "text", &gvalue );
g_value_unset( &gvalue );
SetMode(mode);
SetAlignment(align);
#if !wxUSE_UNICODE
// We can't initialize the renderer just yet because we don't have the
// pointer to the column that uses this renderer yet and so attempt to
// dereference GetOwner() to get the font that is used as a source of
// encoding in multibyte-to-Unicode conversion in GTKSetLabel() in
// non-Unicode builds would crash. So simply remember to do it later.
if ( !m_label.empty() )
m_needsToSetLabel = true;
else
#endif // !wxUSE_UNICODE
GTKSetLabel();
}
else
#endif
@ -2481,11 +2486,36 @@ wxDataViewProgressRenderer::~wxDataViewProgressRenderer()
{
}
void wxDataViewProgressRenderer::GTKSetLabel()
{
GValue gvalue = { 0, };
g_value_init( &gvalue, G_TYPE_STRING );
// Take care to not use GetOwner() here if the label is empty, we can be
// called from ctor when GetOwner() is still NULL in this case.
g_value_set_string( &gvalue,
m_label.empty() ? ""
: wxGTK_CONV_FONT(m_label,
GetOwner()->GetOwner()->GetFont())
);
g_object_set_property( G_OBJECT(m_renderer), "text", &gvalue );
g_value_unset( &gvalue );
#if !wxUSE_UNICODE
m_needsToSetLabel = false;
#endif // !wxUSE_UNICODE
}
bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
{
#ifdef __WXGTK26__
if (!gtk_check_version(2,6,0))
{
#if !wxUSE_UNICODE
if ( m_needsToSetLabel )
GTKSetLabel();
#endif // !wxUSE_UNICODE
gint tmp = (long) value;
GValue gvalue = { 0, };
g_value_init( &gvalue, G_TYPE_INT );