IS_HATCH macro replaced with wxBrush::IsHatch() + source and docs little cleaning.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30819 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/brush.h

@@ -35,18 +35,18 @@ class wxBrush: public wxGDIObject
 {
 public:
     wxBrush() { }
-    
+
     wxBrush( const wxColour &colour, int style = wxSOLID );
     wxBrush( const wxBitmap &stippleBitmap );
     ~wxBrush();
-    
+
     wxBrush( const wxBrush &brush )
         : wxGDIObject()
         { Ref(brush); }
     wxBrush& operator = ( const wxBrush& brush ) { Ref(brush); return *this; }
-    
+
     bool Ok() const { return m_refData != NULL; }
-    
+
     bool operator == ( const wxBrush& brush ) const;
     bool operator != (const wxBrush& brush) const { return !(*this == brush); }
 
@@ -54,6 +54,9 @@ public:
     wxColour &GetColour() const;
     wxBitmap *GetStipple() const;
 
+    bool IsHatch() const
+        { return (GetStyle()>=wxBDIAGONAL_HATCH) && (GetStyle()<=wxVERTICAL_HATCH); }
+
     void SetColour( const wxColour& col );
     void SetColour( unsigned char r, unsigned char g, unsigned char b );
     void SetStyle( int style );
@@ -63,7 +66,7 @@ private:
     // ref counting code
     virtual wxObjectRefData *CreateRefData() const;
     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
-    
+
     DECLARE_DYNAMIC_CLASS(wxBrush)
 };