The Lesser wxMask Refactoring: merged wxMGL and wxDFB version, added wxMaskBase which could/should be used by other ports later

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41495 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/mask.cpp

@@ -0,0 +1,76 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        src/generic/mask.cpp
+// Purpose:     generic wxMask implementation
+// Author:      Vadim Zeitlin
+// Created:     2006-09-28
+// RCS-ID:      $Id$
+// Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/bitmap.h"
+    #include "wx/image.h"
+#endif // WX_PRECOMP
+
+#if wxUSE_GENERIC_MASK
+
+// ============================================================================
+// wxMask implementation
+// ============================================================================
+
+IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
+
+void wxMask::FreeData()
+{
+    m_bitmap = wxNullBitmap;
+}
+
+bool wxMask::InitFromColour(const wxBitmap& bitmap, const wxColour& colour)
+{
+#if wxUSE_IMAGE
+    const wxColour clr(bitmap.QuantizeColour(colour));
+
+    wxImage imgSrc(bitmap.ConvertToImage());
+    imgSrc.SetMask(false);
+    wxImage image(imgSrc.ConvertToMono(clr.Red(), clr.Green(), clr.Blue()));
+    if ( !image.Ok() )
+        return false;
+
+    m_bitmap = wxBitmap(image, 1);
+
+    return m_bitmap.Ok();
+#else // !wxUSE_IMAGE
+    wxUnusedVar(bitmap);
+    wxUnusedVar(colour);
+
+    return false;
+#endif // wxUSE_IMAGE/!wxUSE_IMAGE
+}
+
+bool wxMask::InitFromMonoBitmap(const wxBitmap& bitmap)
+{
+    wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap") );
+    wxCHECK_MSG( bitmap.GetDepth() == 1, false, wxT("Cannot create mask from colour bitmap") );
+
+    m_bitmap = bitmap;
+
+    return true;
+}
+
+#endif // wxUSE_GENERIC_MASK