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Avoid using gdk_window_freeze_updates() to implement Freeze()

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Implement Freeze() by blocking the GtkWindow "expose-event"/"draw" signal
instead. Since the introduction of client-side windows in GTK+ 2.18,
gdk_window_freeze_updates() is unuseable because the impl_window (and thus the
update_freeze_count) for a given GdkWindow can change unpredictably. See #16795
This commit is contained in:
Paul Cornett
2015-06-24 08:43:30 -07:00
parent c15ae5e4a3
commit b7cf54d24a
3 changed files with 41 additions and 49 deletions
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5
src/gtk/textctrl.cpp
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@@ -695,6 +695,7 @@ bool wxTextCtrl::Create( wxWindow *parent,
gulong sig_id = g_signal_connect(m_buffer, "mark_set", G_CALLBACK(mark_set), &m_anonymousMarkList);
// Create view
m_text = gtk_text_view_new_with_buffer(m_buffer);
GTKConnectFreezeWidget(m_text);
// gtk_text_view_set_buffer adds its own reference
g_object_unref(m_buffer);
g_signal_handler_disconnect(m_buffer, sig_id);
@@ -1975,6 +1976,8 @@ void wxTextCtrl::DoFreeze()
wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
GTKFreezeWidget(m_text);
if (m_widget != m_text)
GTKFreezeWidget(m_widget);
if ( HasFlag(wxTE_MULTILINE) )
{
@@ -2021,6 +2024,8 @@ void wxTextCtrl::DoThaw()
}
GTKThawWidget(m_text);
if (m_widget != m_text)
GTKThawWidget(m_widget);
}
// ----------------------------------------------------------------------------