From: Glen Mazza <gmazza@apache.org>
Date: Sat, 12 Feb 2005 22:32:36 +0000 (+0000)
Subject: Some cleanup -- moved getSimplePageMasterToUse() to PageSequence (logic
X-Git-Tag: Root_Temp_KnuthStylePageBreaking~79
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=da94c4f54fea92c5615def50c1c9ba2ce2f9b960;p=xmlgraphics-fop.git

Some cleanup -- moved getSimplePageMasterToUse() to PageSequence (logic
is useful with other implementations of PSLM.)


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@198428 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/src/java/org/apache/fop/fo/pagination/PageSequence.java b/src/java/org/apache/fop/fo/pagination/PageSequence.java
index 18678bf0c..2dce9b1b9 100644
--- a/src/java/org/apache/fop/fo/pagination/PageSequence.java
+++ b/src/java/org/apache/fop/fo/pagination/PageSequence.java
@@ -176,6 +176,8 @@ public class PageSequence extends FObj {
                 throw new ValidationException("master-reference '" + masterReference
                                        + "' for fo:page-sequence matches no"
                                        + " simple-page-master or page-sequence-master", locator);
+            } else {
+                pageSequenceMaster.reset();
             }
         }
 
@@ -658,23 +660,23 @@ public class PageSequence extends FObj {
     }
 
     /**
-     * Public accessor for getting the PageSequenceMaster (if any) to which this
-     * PageSequence is attached.
-     * @return the PageSequenceMaster to which this PageSequence is attached, or
-     * null if there is none.
+     * Public accessor for determining the page master to use for any given
+     * page within this page sequence
+     * @param pageCount = the page number of the page to be created
+     * @param bIsFirstPage = indicator whether this page is the first page of the
+     *      page sequence
+     * @param bIsBlank = indicator whether the page will be blank
+     * @return the SimplePageMaster to use for this page
      */
-    public PageSequenceMaster getPageSequenceMaster() {
-        return pageSequenceMaster;
-    }
+    public SimplePageMaster getSimplePageMasterToUse(int pageCount, boolean bIsFirstPage, 
+        boolean bIsBlank) throws FOPException {
 
-    /**
-     * Public accessor for getting the SimplePageMaster (if any) to which this
-     * PageSequence is attached.
-     * @return the SimplePageeMaster to which this PageSequence is attached or
-     * null if there is none.
-     */
-    public SimplePageMaster getSimplePageMaster() {
-        return simplePageMaster;
+        if (pageSequenceMaster == null) {
+            return simplePageMaster;
+        }
+        boolean isOddPage = ((pageCount % 2) == 1);
+        return pageSequenceMaster.getNextSimplePageMaster(isOddPage, 
+            bIsFirstPage, bIsBlank);
     }
 
     /**
diff --git a/src/java/org/apache/fop/layoutmgr/PageSequenceLayoutManager.java b/src/java/org/apache/fop/layoutmgr/PageSequenceLayoutManager.java
index 0321c8235..ce86164e9 100644
--- a/src/java/org/apache/fop/layoutmgr/PageSequenceLayoutManager.java
+++ b/src/java/org/apache/fop/layoutmgr/PageSequenceLayoutManager.java
@@ -81,6 +81,7 @@ public class PageSequenceLayoutManager extends AbstractLayoutManager {
 
     /** True if haven't yet laid out any pages.*/
     private boolean bFirstPage;
+
     /** Current page being worked on. */
     private PageViewport curPage;
 
@@ -129,9 +130,6 @@ public class PageSequenceLayoutManager extends AbstractLayoutManager {
     public PageSequenceLayoutManager(PageSequence pageSeq) {
         super(pageSeq);
         this.pageSeq = pageSeq;
-        if (pageSeq.getPageSequenceMaster() != null) {
-            pageSeq.getPageSequenceMaster().reset();
-        }
     }
 
     /**
@@ -151,17 +149,6 @@ public class PageSequenceLayoutManager extends AbstractLayoutManager {
         return areaTreeHandler;
     }
 
-    /**
-     * Get the page count.
-     * Used to get the last page number for reference for
-     * the next page sequence.
-     *
-     * @return the page number
-     */
-    public int getPageCount() {
-        return pageCount;
-    }
-
     /**
      * @return the Title area
      */
@@ -223,7 +210,7 @@ public class PageSequenceLayoutManager extends AbstractLayoutManager {
         pageCount--;
         log.debug("Ending layout");
         finishPage();
-        pageSeq.setCurrentPageNumber(getPageCount());
+        pageSeq.setCurrentPageNumber(pageCount);
     }
 
     /** @see org.apache.fop.layoutmgr.LayoutManager#isBogus() */
@@ -473,12 +460,21 @@ public class PageSequenceLayoutManager extends AbstractLayoutManager {
 
     private PageViewport makeNewPage(boolean bIsBlank, boolean bIsLast) {
         finishPage();
+
         try {
-            curPage = createPage(bIsBlank, bIsLast);
+            // create a new page
+            currentSimplePageMaster = pageSeq.getSimplePageMasterToUse(
+                pageCount, isFirstPage, bIsBlank);
+            Region body = currentSimplePageMaster.getRegion(FO_REGION_BODY);
+            if (!pageSeq.getMainFlow().getFlowName().equals(body.getRegionName())) {
+              throw new FOPException("Flow '" + pageSeq.getMainFlow().getFlowName()
+                 + "' does not map to the region-body in page-master '"
+                 + currentSimplePageMaster.getMasterName() + "'");
+            }
+            curPage = createPageAreas(currentSimplePageMaster);
             isFirstPage = false;
         } catch (FOPException fopex) {
-            //TODO this exception is fatal, isn't it?
-            log.error("Cannot create page", fopex);
+            throw new IllegalArgumentException("Cannot create page: " + fopex.getMessage());
         }
 
         curPage.setPageNumberString(getCurrentPageNumber());
@@ -747,47 +743,6 @@ public class PageSequenceLayoutManager extends AbstractLayoutManager {
         createFlow();
     }
 
-    /**
-     * Called when a new page is needed.
-     *
-     * @param bIsBlank If true, use a master for a blank page.
-     * @param bIsLast If true, use the master for the last page in the sequence.
-     * @return the page viewport created for the page number
-     * @throws FOPException if there is an error creating page
-     */
-    private PageViewport createPage(boolean bIsBlank, boolean bIsLast)
-                                   throws FOPException {
-        currentSimplePageMaster = getSimplePageMasterToUse(bIsBlank);
-        Region body = currentSimplePageMaster.getRegion(FO_REGION_BODY);
-        if (!pageSeq.getMainFlow().getFlowName().equals(body.getRegionName())) {
-          throw new FOPException("Flow '" + pageSeq.getMainFlow().getFlowName()
-                                 + "' does not map to the region-body in page-master '"
-                                 + currentSimplePageMaster.getMasterName() + "'");
-        }
-        PageViewport p = createPageAreas(currentSimplePageMaster);
-        return p;
-        // The page will have a viewport/reference area pair defined
-        // for each region in the master.
-        // Set up the page itself
-// SKIP ALL THIS FOR NOW!!!
-//             //pageSequence.root.setRunningPageNumberCounter(pageSequence.currentPageNumber);
-
-//             pageSequence.pageCount++;    // used for 'force-page-count' calculations
-
-        // handle the 'force-page-count'
-        //forcePage(areaTree, firstAvailPageNumber);
-    }
-
-    private SimplePageMaster getSimplePageMasterToUse(boolean bIsBlank)
-            throws FOPException {
-        if (pageSeq.getPageSequenceMaster() == null) {
-            return pageSeq.getSimplePageMaster();
-        }
-        boolean isOddPage = ((pageCount % 2) == 1);
-        return pageSeq.getPageSequenceMaster()
-              .getNextSimplePageMaster(isOddPage, isFirstPage, bIsBlank);
-    }
-
     private PageViewport createPageAreas(SimplePageMaster spm) {
         int pageWidth = spm.getPageWidth().getValue();
         int pageHeight = spm.getPageHeight().getValue();