Added dcbase.cpp

[wxWidgets.git] / src / msw / pen.cpp

diff --git a/src/msw/pen.cpp b/src/msw/pen.cpp
index 2818565949a09f013c83bbae49570bedec5c9fef..2862a4dcc3078e5f954193ea7b5406c7b7fedeca 100644 (file)
--- a/src/msw/pen.cpp
+++ b/src/msw/pen.cpp
@@ -36,9 +36,8 @@
 IMPLEMENT_DYNAMIC_CLASS(wxPen, wxGDIObject)
 #endif
 
-wxPenRefData::wxPenRefData(void)
+wxPenRefData::wxPenRefData()
 {
-//  m_stipple = NULL ;
   m_style = wxSOLID;
   m_width = 1;
   m_join = wxJOIN_ROUND ;
@@ -48,7 +47,19 @@ wxPenRefData::wxPenRefData(void)
   m_hPen = 0;
 }
 
-wxPenRefData::~wxPenRefData(void)
+wxPenRefData::wxPenRefData(const wxPenRefData& data)
+{
+    m_style = data.m_style;
+    m_width = data.m_width;
+    m_join = data.m_join;
+    m_cap = data.m_cap;
+    m_nbDash = data.m_nbDash;
+    m_dash = data.m_dash;
+    m_colour = data.m_colour;
+    m_hPen = 0;
+}
+
+wxPenRefData::~wxPenRefData()
 {
        if ( m_hPen )
                ::DeleteObject((HPEN) m_hPen);
@@ -56,7 +67,7 @@ wxPenRefData::~wxPenRefData(void)
 
 // Pens
 
-wxPen::wxPen(void)
+wxPen::wxPen()
 {
   if ( wxThePenList )
     wxThePenList->AddPen(this);
@@ -132,27 +143,7 @@ wxPen::wxPen(const wxBitmap& stipple, int Width)
     wxThePenList->AddPen(this);
 }
 
-wxPen::wxPen(const wxString& col, int Width, int Style)
-{
-  m_refData = new wxPenRefData;
-
-  M_PENDATA->m_colour = col;
-//  M_PENDATA->m_stipple = NULL ;
-  M_PENDATA->m_width = Width;
-  M_PENDATA->m_style = Style;
-  M_PENDATA->m_join = wxJOIN_ROUND ;
-  M_PENDATA->m_cap = wxCAP_ROUND ;
-  M_PENDATA->m_nbDash = 0 ;
-  M_PENDATA->m_dash = 0 ;
-  M_PENDATA->m_hPen = 0 ;
-
-  RealizeResource();
-
-  if ( wxThePenList )
-    wxThePenList->AddPen(this);
-}
-
-bool wxPen::RealizeResource(void)
+bool wxPen::RealizeResource()
 {
   if (M_PENDATA && (M_PENDATA->m_hPen == 0))
   {
@@ -233,6 +224,11 @@ bool wxPen::RealizeResource(void)
         break ;
         default:
           logb.lbStyle = BS_SOLID ;
+          // this should be unnecessary (it's unused) but suppresses the Purigy
+          // messages about uninitialized memory read
+#ifdef __WXDEBUG__
+          logb.lbHatch = 0;
+#endif
         break ;
       }
       logb.lbColor = ms_colour ;
@@ -269,7 +265,7 @@ bool wxPen::RealizeResource(void)
   return FALSE;
 }
 
-WXHANDLE wxPen::GetResourceHandle(void)
+WXHANDLE wxPen::GetResourceHandle()
 {
        if ( !M_PENDATA )
                return 0;
@@ -288,123 +284,97 @@ bool wxPen::FreeResource(bool force)
   else return FALSE;
 }
 
-/*
-bool wxPen::UseResource(void)
-{
-  IncrementResourceUsage();
-  return TRUE;
-}
-
-bool wxPen::ReleaseResource(void)
-{
-  DecrementResourceUsage();
-  return TRUE;
-}
-*/
-
-bool wxPen::IsFree(void)
+bool wxPen::IsFree() const
 {
   return (M_PENDATA && M_PENDATA->m_hPen == 0);
 }
 
-void wxPen::SetColour(const wxColour& col)
+void wxPen::Unshare()
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
-
-  M_PENDATA->m_colour = col;
-  
-  if (FreeResource())
-    RealizeResource();
+       // Don't change shared data
+       if (!m_refData)
+    {
+               m_refData = new wxPenRefData();
+       }
+    else
+    {
+               wxPenRefData* ref = new wxPenRefData(*(wxPenRefData*)m_refData);
+               UnRef();
+               m_refData = ref;
+       }
 }
 
-void wxPen::SetColour(const wxString& col)
+void wxPen::SetColour(const wxColour& col)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_colour = col;
+    M_PENDATA->m_colour = col;
   
-  if (FreeResource())
     RealizeResource();
 }
 
-void wxPen::SetColour(const unsigned char r, const unsigned char g, const unsigned char b)
+void wxPen::SetColour(unsigned char r, unsigned char g, unsigned char b)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_colour.Set(r, g, b);
+    M_PENDATA->m_colour.Set(r, g, b);
   
-  if (FreeResource())
     RealizeResource();
 }
 
 void wxPen::SetWidth(int Width)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_width = Width;
+    M_PENDATA->m_width = Width;
 
-  if (FreeResource())
     RealizeResource();
 }
 
 void wxPen::SetStyle(int Style)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_style = Style;
+    M_PENDATA->m_style = Style;
 
-  if (FreeResource())
     RealizeResource();
 }
 
 void wxPen::SetStipple(const wxBitmap& Stipple)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_stipple = Stipple;
-  M_PENDATA->m_style = wxSTIPPLE;
+    M_PENDATA->m_stipple = Stipple;
+    M_PENDATA->m_style = wxSTIPPLE;
   
-  if (FreeResource())
     RealizeResource();
 }
 
 void wxPen::SetDashes(int nb_dashes, const wxDash *Dash)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_nbDash = nb_dashes;
-  M_PENDATA->m_dash = (wxDash *)Dash;
+    M_PENDATA->m_nbDash = nb_dashes;
+    M_PENDATA->m_dash = (wxDash *)Dash;
   
-  if (FreeResource())
     RealizeResource();
 }
 
 void wxPen::SetJoin(int Join)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_join = Join;
+    M_PENDATA->m_join = Join;
 
-  if (FreeResource())
     RealizeResource();
 }
 
 void wxPen::SetCap(int Cap)
 {
-  if ( !M_PENDATA )
-       m_refData = new wxPenRefData;
+    Unshare();
 
-  M_PENDATA->m_cap = Cap;
+    M_PENDATA->m_cap = Cap;
 
-  if (FreeResource())
     RealizeResource();
 }