Enable graphics context by default

[wxWidgets.git] / src / unix / taskbarx11.cpp

diff --git a/src/unix/taskbarx11.cpp b/src/unix/taskbarx11.cpp
index 06118f3109a40061e0ecac2c0fa58eed18fe5232..ced3b5e059716e7060ce6ae4f6e17d0d384f2a75 100644 (file)
--- a/src/unix/taskbarx11.cpp
+++ b/src/unix/taskbarx11.cpp
@@ -263,7 +263,11 @@ wxTaskBarIcon::wxTaskBarIcon() : m_iconWnd(NULL)
 wxTaskBarIcon::~wxTaskBarIcon()
 {
     if (m_iconWnd)
+    {
+        m_iconWnd->Disconnect(
+            wxEVT_DESTROY, wxObjectEventFunction(NULL), NULL, this);
         RemoveIcon();
+    }
 }
 
 bool wxTaskBarIcon::IsOk() const
@@ -276,6 +280,14 @@ bool wxTaskBarIcon::IsIconInstalled() const
     return m_iconWnd != NULL;
 }
 
+// Destroy event from wxTaskBarIconArea
+void wxTaskBarIcon::OnDestroy(wxWindowDestroyEvent&)
+{
+    // prevent crash if wxTaskBarIconArea is destroyed by something else,
+    // for example if panel/kicker is killed
+    m_iconWnd = NULL;
+}
+
 bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
 {
     wxBitmap bmp;
@@ -286,6 +298,9 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
         m_iconWnd = new wxTaskBarIconArea(this, bmp);
         if (m_iconWnd->IsOk())
         {
+            m_iconWnd->Connect(wxEVT_DESTROY,
+                wxWindowDestroyEventHandler(wxTaskBarIcon::OnDestroy),
+                NULL, this);
             m_iconWnd->Show();
         }
         else