X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5c33522fca7cddc441a316f5b9fb50d7685435ba..1f0acb435592470b421b80df854fbbb08cd2853f:/include/wx/pen.h

diff --git a/include/wx/pen.h b/include/wx/pen.h
index 479a9668ea..f6e745bd81 100644
--- a/include/wx/pen.h
+++ b/include/wx/pen.h
@@ -84,6 +84,19 @@ public:
     virtual wxPenCap GetCap() const = 0;
     virtual int GetWidth() const = 0;
     virtual int GetDashes(wxDash **ptr) const = 0;
+
+    // Convenient helpers for testing whether the pen is a transparent one:
+    // unlike GetStyle() == wxPENSTYLE_TRANSPARENT, they work correctly even if
+    // the pen is invalid (they both return false in this case).
+    bool IsTransparent() const
+    {
+        return IsOk() && GetStyle() == wxPENSTYLE_TRANSPARENT;
+    }
+
+    bool IsNonTransparent() const
+    {
+        return IsOk() && GetStyle() != wxPENSTYLE_TRANSPARENT;
+    }
 };
 
 #if defined(__WXPALMOS__)
@@ -135,6 +148,11 @@ extern WXDLLIMPEXP_DATA_CORE(wxPenList*)   wxThePenList;
 // compilers as it compares elements of different enums
 #if FUTURE_WXWIN_COMPATIBILITY_3_0
 
+// Unfortunately some compilers have ambiguity issues when enum comparisons are
+// overloaded so we have to disable the overloads in this case, see
+// wxCOMPILER_NO_OVERLOAD_ON_ENUM definition in wx/platform.h for more details.
+#ifndef wxCOMPILER_NO_OVERLOAD_ON_ENUM
+
 inline bool operator==(wxPenStyle s, wxDeprecatedGUIConstants t)
 {
     return static_cast<int>(s) == static_cast<int>(t);
@@ -145,6 +163,8 @@ inline bool operator!=(wxPenStyle s, wxDeprecatedGUIConstants t)
     return !(s == t);
 }
 
+#endif // wxCOMPILER_NO_OVERLOAD_ON_ENUM
+
 #endif // FUTURE_WXWIN_COMPATIBILITY_3_0
 
 #endif // _WX_PEN_H_BASE_