Move SVG rasterizer service to source folder

With the SVG rasterizer contributed as separate project to SWT, running
pure Java Snippets did not work out of the box, when the SVG project
was added to the workspace. This commit moves the service provider
configuration into a separate source folder so it will be properly
initialized in this use case as well.

Author: ShahzaibIbrahim

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java

@@ -467,8 +467,9 @@ LRESULT CDDS_ITEMPOSTPAINT (NMTVCUSTOMDRAW nmcd, long wParam, long lParam) {
 					if (explorerTheme) {
 						if (hooks (SWT.EraseItem)) {
 							RECT itemRect = item.getBounds (index, true, true, false, false, true, hDC);
-							itemRect.left -= EXPLORER_EXTRA;
-							itemRect.right += EXPLORER_EXTRA + 1;
+							int explorerExtraInPixels = Win32DPIUtils.pointToPixel(EXPLORER_EXTRA, zoom);
+							itemRect.left -= explorerExtraInPixels;
+							itemRect.right += explorerExtraInPixels + 1;
 							pClipRect.left = itemRect.left;
 							pClipRect.right = itemRect.right;
 							if (columnCount > 0 && hwndHeader != 0) {
@@ -1129,17 +1130,19 @@ LRESULT CDDS_ITEMPREPAINT (NMTVCUSTOMDRAW nmcd, long wParam, long lParam) {
 					selectionForeground = clrText = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT);
 				}
 				if (explorerTheme) {
+					int zoom = getZoom();
 					if ((style & SWT.FULL_SELECTION) == 0) {
 						RECT pRect = item.getBounds (index, true, true, false, false, false, hDC);
 						RECT pClipRect = item.getBounds (index, true, true, true, false, true, hDC);
+						int explorerExtraInPixels = Win32DPIUtils.pointToPixel(EXPLORER_EXTRA, zoom);
 						if (measureEvent != null) {
 							pRect.right = Math.min (pClipRect.right, boundsInPixels.x + boundsInPixels.width);
 						} else {
-							pRect.right += EXPLORER_EXTRA;
-							pClipRect.right += EXPLORER_EXTRA;
+							pRect.right += explorerExtraInPixels;
+							pClipRect.right += explorerExtraInPixels;
 						}
-						pRect.left -= EXPLORER_EXTRA;
-						pClipRect.left -= EXPLORER_EXTRA;
+						pRect.left -= explorerExtraInPixels;
+						pClipRect.left -= explorerExtraInPixels;
 						long hTheme = OS.OpenThemeData (handle, Display.TREEVIEW, getZoom());
 						int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT;
 						if (OS.GetFocus () != handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS;
@@ -1208,8 +1211,9 @@ LRESULT CDDS_ITEMPREPAINT (NMTVCUSTOMDRAW nmcd, long wParam, long lParam) {
 			OS.SaveDC (hDC);
 			OS.SelectClipRgn (hDC, 0);
 			if (explorerTheme) {
-				itemRect.left -= EXPLORER_EXTRA;
-				itemRect.right += EXPLORER_EXTRA;
+				int explorerExtraInPixels = Win32DPIUtils.pointToPixel(EXPLORER_EXTRA, getZoom());
+				itemRect.left -= explorerExtraInPixels;
+				itemRect.right += explorerExtraInPixels;
 			}
 			//TODO - bug in Windows selection or SWT itemRect
 			/*if (selected)*/ itemRect.right++;