Move scalableresource.h

When @jsakkine was doing linux resources, he and I realized
that I had put this file in the wrong directory. It should be
in windows and conditionally included. Addresses issue surge-synthesizer#453


Former-commit-id: 7eb4a31efd6308799729774ede412595ff6e485d [formerly be507bc]
Former-commit-id: cc90150f2e2d77aba0b1e1256969742150589919
Former-commit-id: 1cf76594e1ff9d363f205bfbac50ad370b27fe5c

scripts/win/emit-vector-rc.py

@@ -68,7 +68,7 @@
             scaleToOffset[ matchscale.group( 1 ) ] = int( matchscale.group( 2 ) )
 
 
-subRes = open( "src\\common\\scalableresource.h", "w" )
+subRes = open( "src\\windows\\scalableresource.h", "w" )
 subRes.write( """
 /*
 ** THIS IS AN AUTOMATICALLY GENERATED FILE. DO NOT EDIT IT

src/common/gui/CScalableBitmap.cpp

@@ -56,13 +56,16 @@ CScalableBitmap::CScalableBitmap(CResourceDescription desc)
     scaleFilePostfixes[ 300 ] = "@3x";
     scaleFilePostfixes[ 400 ] = "@4x";
 
+#if WINDOWS
+    // Only windows uses this integer indexing and knows these offsets
     std::map< int, int > scaleIDOffsets;
     scaleIDOffsets[ 100 ] = SCALABLE_100_OFFSET;
     scaleIDOffsets[ 150 ] = SCALABLE_150_OFFSET;
     scaleIDOffsets[ 200 ] = SCALABLE_200_OFFSET;
     scaleIDOffsets[ 300 ] = SCALABLE_300_OFFSET;
     scaleIDOffsets[ 400 ] = SCALABLE_400_OFFSET;
-
+#endif
+
     for(auto sc : scales)
     {
         CBitmap *scBmp = NULL;

src/common/resource.h

@@ -71,16 +71,20 @@
 #endif
 #endif
 
+#if WINDOWS
 /*
 ** Each of the bitmaps is also available in scaled form. The ID of the scaled bitmaps
 ** is ID_BG+SCALABLE_200_OFFSET for the 200% image.
 **
 ** Do NOT change the values of these constants without understanding scripts/win/emit-vector-rc.py
+**
+** This is windows only. Mac and Linux use different resource approaches
 */
 #define SCALABLE_100_OFFSET 70000
 #define SCALABLE_150_OFFSET 71000
 #define SCALABLE_200_OFFSET 72000
 #define SCALABLE_300_OFFSET 73000
 #define SCALABLE_400_OFFSET 74000
 
-#include "scalableresource.h"
+#include "scalableresource.h" // found in src/windows
+#endif