moved wxIcon implementation for ports where it's identical to wxBitmap to generic/icon.{cpp,h} so that the same code is not duplicated several times

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40531 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/icon.h

@@ -0,0 +1,61 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/generic/icon.h
+// Purpose:     wxIcon implementation for ports where it's same as wxBitmap
+// Author:      Julian Smart
+// Modified by:
+// Created:     17/09/98
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GENERIC_ICON_H_
+#define _WX_GENERIC_ICON_H_
+
+#include "wx/bitmap.h"
+
+//-----------------------------------------------------------------------------
+// wxIcon
+//-----------------------------------------------------------------------------
+
+#ifndef wxICON_DEFAULT_BITMAP_TYPE
+#define wxICON_DEFAULT_BITMAP_TYPE wxBITMAP_TYPE_XPM
+#endif
+
+class WXDLLIMPEXP_CORE wxIcon: public wxBitmap
+{
+public:
+    wxIcon();
+
+    wxIcon( const char **bits, int width=-1, int height=-1 );
+    wxIcon( char **bits, int width=-1, int height=-1 );
+
+    // For compatibility with wxMSW where desired size is sometimes required to
+    // distinguish between multiple icons in a resource.
+    wxIcon( const wxString& filename,
+            wxBitmapType type = wxICON_DEFAULT_BITMAP_TYPE,
+            int WXUNUSED(desiredWidth)=-1, int WXUNUSED(desiredHeight)=-1 ) :
+        wxBitmap(filename, type)
+    {
+    }
+
+    wxIcon(const wxIconLocation& loc)
+        : wxBitmap(loc.GetFileName(), wxBITMAP_TYPE_ANY)
+    {
+    }
+
+    bool operator==(const wxIcon& icon) const
+        { return m_refData == icon.m_refData; }
+    bool operator!=(const wxIcon& icon) const
+        { return !(*this == icon); }
+
+    // create from bitmap (which should have a mask unless it's monochrome):
+    // there shouldn't be any implicit bitmap -> icon conversion (i.e. no
+    // ctors, assignment operators...), but it's ok to have such function
+    void CopyFromBitmap(const wxBitmap& bmp);
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxIcon)
+};
+
+#endif // _WX_GENERIC_ICON_H_