allow specifying the mask colour in wxImage::ConvertAlphaToMask() (closes #10143)

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

diff --git a/src/common/cmndata.cpp b/src/common/cmndata.cpp
index 8c1309a9df952f079f430eed5cfcd299cec87b10..2fd075f47e1e96bb8701206654e195de79795d9f 100644 (file)
--- a/src/common/cmndata.cpp
+++ b/src/common/cmndata.cpp
@@ -256,8 +256,11 @@ void wxPrintData::ConvertFromNative()
     m_nativeData->TransferTo( *this ) ;
 }
 
-void wxPrintData::operator=(const wxPrintData& data)
+wxPrintData& wxPrintData::operator=(const wxPrintData& data)
 {
+    if ( &data == this )
+        return *this;
+
     m_printNoCopies = data.m_printNoCopies;
     m_printCollate = data.m_printCollate;
     m_printOrientation = data.m_printOrientation;
@@ -295,6 +298,8 @@ void wxPrintData::operator=(const wxPrintData& data)
         m_privData = new char[m_privDataLen];
         memcpy( m_privData, data.GetPrivData(), m_privDataLen );
     }
+
+    return *this;
 }
 
 // Is this data OK for showing the print dialog?
@@ -499,7 +504,7 @@ void wxPageSetupDialogData::SetPrintData(const wxPrintData& printData)
 // paper id
 void wxPageSetupDialogData::CalculateIdFromPaperSize()
 {
-    wxASSERT_MSG( (wxThePrintPaperDatabase != (wxPrintPaperDatabase*) NULL),
+    wxASSERT_MSG( (wxThePrintPaperDatabase != NULL),
                   wxT("wxThePrintPaperDatabase should not be NULL. Do not create global print dialog data objects.") );
 
     wxSize sz = GetPaperSize();
@@ -514,7 +519,7 @@ void wxPageSetupDialogData::CalculateIdFromPaperSize()
 // Use paper id in wxPrintData to set this object's paper size
 void wxPageSetupDialogData::CalculatePaperSizeFromId()
 {
-    wxASSERT_MSG( (wxThePrintPaperDatabase != (wxPrintPaperDatabase*) NULL),
+    wxASSERT_MSG( (wxThePrintPaperDatabase != NULL),
                   wxT("wxThePrintPaperDatabase should not be NULL. Do not create global print dialog data objects.") );
 
     wxSize sz = wxThePrintPaperDatabase->GetSize(m_printData.GetPaperId());