instead of storing and cloning page reference-area and viewport objects for each SimplePageMaster, create them on the fly (there will shortly be no convenient place to store the templates, and any performance benefit to cloning would appear to be small)

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@196858 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/layoutmgr/PageLayoutManager.java

@@ -719,19 +719,14 @@ public class PageLayoutManager extends AbstractLayoutManager implements Runnable
      */
     public PageViewport createPage(boolean bIsBlank, boolean bIsLast)
                                    throws FOPException {
-        currentSimplePageMaster = getSimpleMasterPageToUse(bIsBlank);
+        currentSimplePageMaster = getSimplePageMasterToUse(bIsBlank);
         Region body = currentSimplePageMaster.getRegion(Region.BODY);
         if (!pageSequence.getMainFlow().getFlowName().equals(body.getRegionName())) {
           throw new FOPException("Flow '" + pageSequence.getMainFlow().getFlowName()
                                  + "' does not map to the region-body in page-master '"
                                  + currentSimplePageMaster.getMasterName() + "'");
         }
-        PageMaster pageMaster = currentSimplePageMaster.getPageMaster();
-        if (pageMaster == null) {
-            createSimplePageMasterAreas(currentSimplePageMaster);
-        }
-        pageMaster = currentSimplePageMaster.getPageMaster();
-        PageViewport p = pageMaster.makePage();
+        PageViewport p = createPageAreas(currentSimplePageMaster);
         return p;
         // The page will have a viewport/reference area pair defined
         // for each region in the master.
@@ -745,7 +740,7 @@ public class PageLayoutManager extends AbstractLayoutManager implements Runnable
         //forcePage(areaTree, firstAvailPageNumber);
     }
 
-    private SimplePageMaster getSimpleMasterPageToUse(boolean bIsBlank)
+    private SimplePageMaster getSimplePageMasterToUse(boolean bIsBlank)
             throws FOPException {
         if (pageSequence.getPageSequenceMaster() == null) {
             return pageSequence.getSimplePageMaster();
@@ -755,13 +750,13 @@ public class PageLayoutManager extends AbstractLayoutManager implements Runnable
               .getNextSimplePageMaster(isOddPage, isFirstPage, bIsBlank);
     }
 
-    public void createSimplePageMasterAreas(SimplePageMaster node) {
+    public PageViewport createPageAreas(SimplePageMaster spm) {
         int pageWidth =
-                node.properties.get("page-width").getLength().getValue();
+                spm.properties.get("page-width").getLength().getValue();
         int pageHeight =
-                node.properties.get("page-height").getLength().getValue();
+                spm.properties.get("page-height").getLength().getValue();
         // Get absolute margin properties (top, left, bottom, right)
-        CommonMarginBlock mProps = node.getPropertyManager().getMarginProps();
+        CommonMarginBlock mProps = spm.getPropertyManager().getMarginProps();
 
       /* Create the page reference area rectangle (0,0 is at top left
        * of the "page media" and y increases
@@ -773,20 +768,19 @@ public class PageLayoutManager extends AbstractLayoutManager implements Runnable
                        pageWidth - mProps.marginLeft - mProps.marginRight,
                        pageHeight - mProps.marginTop - mProps.marginBottom);
 
-       // ??? KL shouldn't this take the viewport too???
        Page page = new Page();  // page reference area
 
        // Set up the CTM on the page reference area based on writing-mode
        // and reference-orientation
        FODimension reldims = new FODimension(0, 0);
-       CTM pageCTM = CTM.getCTMandRelDims(node.getPropertyManager().getAbsRefOrient(),
-               node.getPropertyManager().getWritingMode(), pageRefRect, reldims);
+       CTM pageCTM = CTM.getCTMandRelDims(spm.getPropertyManager().getAbsRefOrient(),
+               spm.getPropertyManager().getWritingMode(), pageRefRect, reldims);
 
        // Create a RegionViewport/ reference area pair for each page region
 
        boolean bHasBody = false;
 
-       for (Iterator regenum = node.getRegions().values().iterator();
+       for (Iterator regenum = spm.getRegions().values().iterator();
             regenum.hasNext();) {
            Region r = (Region)regenum.next();
            RegionViewport rvp = r.makeRegionViewport(reldims, pageCTM);
@@ -798,11 +792,10 @@ public class PageLayoutManager extends AbstractLayoutManager implements Runnable
        }
 
        if (!bHasBody) {
-           node.getLogger().error("simple-page-master has no region-body");
+           spm.getLogger().error("simple-page-master has no region-body");
        }
 
-       node.setPageMaster(new PageMaster(new PageViewport(page,
-               new Rectangle(0, 0, pageWidth, pageHeight))));
+       return new PageViewport(page, new Rectangle(0, 0, pageWidth, pageHeight));
 
     }