added wxIconLocation; minor fixes to wxIcon on some platforms

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21279 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/iconloc.h

@@ -0,0 +1,74 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/iconloc.h
+// Purpose:     declaration of wxIconLocation class
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     21.06.2003
+// RCS-ID:      $Id$
+// Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_ICONLOC_H_
+#define _WX_ICONLOC_H_
+
+#include "wx/string.h"
+
+// ----------------------------------------------------------------------------
+// wxIconLocation: describes the location of an icon
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxIconLocationBase
+{
+public:
+    // ctor takes the name of the file where the icon is
+    wxEXPLICIT wxIconLocationBase(const wxString& file) : m_filename(file) { }
+
+    // default copy ctor, assignment operator and dtor are ok
+
+
+    // returns true if this object is valid/initialized
+    bool IsOk() const { return !m_filename.empty(); }
+
+    // set/get the icon file name
+    void SetFileName(const wxString& file) { m_filename = file; }
+    const wxString& GetFileName() const { return m_filename; }
+
+private:
+    wxString m_filename;
+};
+
+// under MSW the same file may contain several icons so we also store the
+// index of the icon
+#if defined(__WXMSW__)
+
+class WXDLLEXPORT wxIconLocation : public wxIconLocationBase
+{
+public:
+    // ctor takes the name of the file where the icon is and the icons index in
+    // the file
+    wxEXPLICIT wxIconLocation(const wxString& file, int num = 0);
+
+    // set/get the icon index
+    void SetIndex(int num) { m_index = num; }
+    int GetIndex() const { return m_index; }
+
+private:
+    int m_index;
+};
+
+inline
+wxIconLocation::wxIconLocation(const wxString& file, int num)
+              : wxIconLocationBase(file)
+{
+    SetIndex(num);
+}
+
+#else // !MSW
+
+typedef wxIconLocationBase wxIconLocation;
+
+#endif // platform
+
+#endif // _WX_ICONLOC_H_
+