Various typo and coding style fixes

docs/changes.txt

@@ -150,12 +150,8 @@ All (GUI):
   in wxPGArrayEditorDialog.
 - Fix wxPropertyGrid issues with horizontal scrolling.
 - Add wxPG_DIALOG_TITLE wxPGProperty attribute.
-- Add support for creating a wxGraphicsPen with a gradient. The gradient will 
-  be used when stroking a path in a wxGraphicsContext, if supported by the 
-  graphics context backend.
-- Add support for applying a transformation matrix to a gradient for both 
-  wxGraphicsPen and wxGraphicsBrush, if supported by the graphics context 
-  backend.
+- Add support for creating a wxGraphicsPen with a gradient.
+- Add support for applying a transformation matrix to a gradient.
 
 
 wxGTK:

include/wx/graphics.h

@@ -271,7 +271,7 @@ extern WXDLLIMPEXP_DATA_CORE(wxGraphicsMatrix) wxNullGraphicsMatrix;
 
 // ----------------------------------------------------------------------------
 // wxGradientStop and wxGradientStops: Specify what intermediate colors are used
-// and how they are are spread out in a gradient
+// and how they are spread out in a gradient
 // ----------------------------------------------------------------------------
 
 // Describes a single gradient stop.

interface/wx/graphics.h

@@ -305,6 +305,12 @@ enum wxCompositionMode
     wxCOMPOSITION_ADD  /**< @e R = @e S + @e D */
 };
 
+/**
+   Used to indicate what kind of gradient is set in a wxGraphicsPenInfo
+   object.
+
+   @since 3.1.3
+ */
 enum wxGradientType {
     wxGRADIENT_NONE,
     wxGRADIENT_LINEAR,
@@ -641,7 +647,7 @@ public:
 
         The version taking wxGraphicsGradientStops is new in wxWidgets 2.9.1.
 
-        The ability to apply a transformation matrix to the gradient was added in 3.1.3
+        The @ matrix parameter was added in wxWidgets 3.1.3
     */
     wxGraphicsBrush
     CreateLinearGradientBrush(wxDouble x1, wxDouble y1,

src/msw/graphics.cpp

@@ -261,9 +261,8 @@ class wxGDIPlusPenBrushBaseData : public wxGraphicsObjectRefData
 {
 public:
     wxGDIPlusPenBrushBaseData(wxGraphicsRenderer* renderer);
-    ~wxGDIPlusPenBrushBaseData();
 
-    virtual void Init();
+    virtual void Init() wxOVERRIDE;
 
     void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
                                    wxDouble x2, wxDouble y2,
@@ -275,6 +274,8 @@ public:
                                    const wxGraphicsGradientStops& stops,
                                    const wxGraphicsMatrix& matrix = wxNullGraphicsMatrix);
 protected:
+    virtual ~wxGDIPlusPenBrushBaseData();
+
     Brush* m_brush;
     GraphicsPath* m_brushPath;
     Image* m_image;