don't crash if we can't detect g_wcCharset

[wxWidgets.git] / src / common / prntbase.cpp

diff --git a/src/common/prntbase.cpp b/src/common/prntbase.cpp
index bbbcefc57dc87ceced9fcc4bdfaaa47b5a3cb417..4521ba7b8ff4d1a9d98fe5355a2839317d9868e3 100644 (file)
--- a/src/common/prntbase.cpp
+++ b/src/common/prntbase.cpp
@@ -183,7 +183,7 @@ wxPreviewCanvas::wxPreviewCanvas(wxPrintPreviewBase *preview, wxWindow *parent,
 wxScrolledWindow(parent, -1, pos, size, style, name)
 {
     m_printPreview = preview;
-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 
     SetScrollbars(15, 18, 100, 100);
 }
@@ -213,7 +213,7 @@ void wxPreviewCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
 // Responds to colour changes, and passes event on to children.
 void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
 {
-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
     Refresh();
 
     // Propagate the event to the non-top-level children
@@ -612,7 +612,8 @@ bool wxPrintPreviewBase::SetCurrentPage(int pageNum)
 
     if (m_previewCanvas)
     {
-        RenderPage(pageNum);
+        if (!RenderPage(pageNum))
+               return FALSE;
         m_previewCanvas->Refresh();
     }
     return TRUE;
@@ -623,7 +624,8 @@ bool wxPrintPreviewBase::PaintPage(wxWindow *canvas, wxDC& dc)
     DrawBlankPage(canvas, dc);
 
     if (!m_previewBitmap)
-        RenderPage(m_currentPage);
+        if (!RenderPage(m_currentPage))
+               return FALSE;
 
     if (!m_previewBitmap)
         return FALSE;
@@ -682,8 +684,10 @@ bool wxPrintPreviewBase::RenderPage(int pageNum)
         m_previewBitmap = new wxBitmap((int)actualWidth, (int)actualHeight);
         if (!m_previewBitmap || !m_previewBitmap->Ok())
         {
-            if (m_previewBitmap)
+            if (m_previewBitmap) {
                 delete m_previewBitmap;
+                m_previewBitmap = NULL;
+            }
             wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
             return FALSE;
         }
@@ -713,6 +717,7 @@ bool wxPrintPreviewBase::RenderPage(int pageNum)
         memoryDC.SelectObject(wxNullBitmap);
 
         delete m_previewBitmap;
+        m_previewBitmap = NULL;
         return FALSE;
     }