Simplify Region.getViewportRectangle(): no reason to pass the SinglePageMaster as a parameter, as Regions have access to it

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1056923 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/area/Page.java

@@ -123,7 +123,7 @@ public class Page extends AreaTreeObject implements Serializable, Cloneable {
         for (Iterator regenum = spm.getRegions().values().iterator();
             regenum.hasNext();) {
             Region r = (Region)regenum.next();
-            RegionViewport rvp = makeRegionViewport(r, reldims, pageCTM, spm);
+            RegionViewport rvp = makeRegionViewport(r, reldims, pageCTM);
             if (r.getNameId() == Constants.FO_REGION_BODY) {
                 rr = new BodyRegion((RegionBody) r, rvp);
             } else {
@@ -138,7 +138,7 @@ public class Page extends AreaTreeObject implements Serializable, Cloneable {
             setRegionReferencePosition(rr, r, rvp.getViewArea());
             rvp.setRegionReference(rr);
             setRegionViewport(r.getNameId(), rvp);
-       }
+        }
     }
 
     /**
@@ -153,12 +153,10 @@ public class Page extends AreaTreeObject implements Serializable, Cloneable {
      * @param r the region the viewport is to be created for
      * @param reldims relative dimensions
      * @param pageCTM page coordinate transformation matrix
-     * @param spm the simple-page-master for this page
      * @return the new region viewport
      */
-    private RegionViewport makeRegionViewport(Region r, FODimension reldims, CTM pageCTM,
-        SimplePageMaster spm) {
-        Rectangle2D relRegionRect = r.getViewportRectangle(reldims, spm);
+    private RegionViewport makeRegionViewport(Region r, FODimension reldims, CTM pageCTM) {
+        Rectangle2D relRegionRect = r.getViewportRectangle(reldims);
         Rectangle2D absRegionRect = pageCTM.transform(relRegionRect);
         // Get the region viewport rectangle in absolute coords by
         // transforming it using the page CTM

src/java/org/apache/fop/fo/pagination/Region.java

@@ -47,7 +47,7 @@ public abstract class Region extends FObj {
     private int writingMode;
     // End of property values
 
-    private SimplePageMaster layoutMaster;
+    protected final SimplePageMaster layoutMaster;
 
     /**
      * Base constructor
@@ -102,11 +102,9 @@ public abstract class Region extends FObj {
 
     /**
      * @param pageRefRect reference dimension of the page area.
-     * @param spm the simple page master this region belongs to.
      * @return the rectangle for the viewport area
      */
-    public abstract Rectangle getViewportRectangle(FODimension pageRefRect
-                                                   , SimplePageMaster spm);
+    public abstract Rectangle getViewportRectangle(FODimension pageRefRect);
 
     /**
      * Returns the default region name (xsl-region-before, xsl-region-start,

src/java/org/apache/fop/fo/pagination/RegionAfter.java

@@ -44,7 +44,7 @@ public class RegionAfter extends RegionBA {
     }
 
     /** {@inheritDoc} */
-    public Rectangle getViewportRectangle (FODimension reldims, SimplePageMaster spm) {
+    public Rectangle getViewportRectangle (FODimension reldims) {
         /* Special rules apply to resolving extent as values are resolved relative
          * to the page size and reference orientation.
          */
@@ -52,7 +52,8 @@ public class RegionAfter extends RegionBA {
         PercentBaseContext pageHeightContext = getPageHeightContext(LengthBase.CUSTOM_BASE);
         PercentBaseContext neighbourContext;
         Rectangle vpRect;
-        if (spm.getWritingMode() == EN_LR_TB || spm.getWritingMode() == EN_RL_TB) {
+        if (layoutMaster.getWritingMode() == EN_LR_TB
+                || layoutMaster.getWritingMode() == EN_RL_TB) {
             neighbourContext = pageWidthContext;
             vpRect = new Rectangle(0, reldims.bpd - getExtent().getValue(pageHeightContext)
                                    , reldims.ipd, getExtent().getValue(pageHeightContext));
@@ -62,7 +63,7 @@ public class RegionAfter extends RegionBA {
                                    , getExtent().getValue(pageWidthContext), reldims.ipd);
         }
         if (getPrecedence() == EN_FALSE) {
-            adjustIPD(vpRect, spm.getWritingMode(), neighbourContext);
+            adjustIPD(vpRect, layoutMaster.getWritingMode(), neighbourContext);
         }
         return vpRect;
     }

src/java/org/apache/fop/fo/pagination/RegionBefore.java

@@ -49,7 +49,7 @@ public class RegionBefore extends RegionBA {
     }
 
     /** {@inheritDoc} */
-    public Rectangle getViewportRectangle (FODimension reldims, SimplePageMaster spm) {
+    public Rectangle getViewportRectangle (FODimension reldims) {
         /* Special rules apply to resolving extent as values are resolved relative
          * to the page size and reference orientation.
          */
@@ -57,7 +57,7 @@ public class RegionBefore extends RegionBA {
         PercentBaseContext pageHeightContext = getPageHeightContext(LengthBase.CUSTOM_BASE);
         PercentBaseContext neighbourContext;
         Rectangle vpRect;
-        if (spm.getWritingMode() == EN_LR_TB || spm.getWritingMode() == EN_RL_TB) {
+        if (layoutMaster.getWritingMode() == EN_LR_TB || layoutMaster.getWritingMode() == EN_RL_TB) {
             neighbourContext = pageWidthContext;
             vpRect = new Rectangle(0, 0, reldims.ipd, getExtent().getValue(pageHeightContext));
         } else {
@@ -65,7 +65,7 @@ public class RegionBefore extends RegionBA {
             vpRect = new Rectangle(0, 0, getExtent().getValue(pageWidthContext), reldims.ipd);
         }
         if (getPrecedence() == EN_FALSE) {
-            adjustIPD(vpRect, spm.getWritingMode(), neighbourContext);
+            adjustIPD(vpRect, layoutMaster.getWritingMode(), neighbourContext);
         }
         return vpRect;
     }

src/java/org/apache/fop/fo/pagination/RegionBody.java

@@ -96,7 +96,7 @@ public class RegionBody extends Region {
     }
 
     /** {@inheritDoc} */
-    public Rectangle getViewportRectangle (FODimension reldims, SimplePageMaster spm) {
+    public Rectangle getViewportRectangle (FODimension reldims) {
         /* Special rules apply to resolving margins in the page context.
          * Contrary to normal margins in this case top and bottom margin
          * are resolved relative to the height. In the property subsystem
@@ -113,7 +113,7 @@ public class RegionBody extends Region {
 
         int start;
         int end;
-        if (spm.getWritingMode() == EN_LR_TB) { // Left-to-right
+        if (layoutMaster.getWritingMode() == EN_LR_TB) { // Left-to-right
             start = commonMarginBlock.marginLeft.getValue(pageWidthContext);
             end = commonMarginBlock.marginRight.getValue(pageWidthContext);
         } else { // all other supported modes are right-to-left

src/java/org/apache/fop/fo/pagination/RegionEnd.java

@@ -44,7 +44,7 @@ public class RegionEnd extends RegionSE {
     }
 
     /** {@inheritDoc} */
-    public Rectangle getViewportRectangle (FODimension reldims, SimplePageMaster spm) {
+    public Rectangle getViewportRectangle (FODimension reldims) {
         /* Special rules apply to resolving extent as values are resolved relative
          * to the page size and reference orientation.
          */
@@ -52,7 +52,7 @@ public class RegionEnd extends RegionSE {
         PercentBaseContext pageHeightContext = getPageHeightContext(LengthBase.CUSTOM_BASE);
         PercentBaseContext neighbourContext;
         Rectangle vpRect;
-        if (spm.getWritingMode() == EN_LR_TB || spm.getWritingMode() == EN_RL_TB) {
+        if (layoutMaster.getWritingMode() == EN_LR_TB || layoutMaster.getWritingMode() == EN_RL_TB) {
             neighbourContext = pageHeightContext;
             vpRect = new Rectangle(reldims.ipd - getExtent().getValue(pageWidthContext), 0,
                     getExtent().getValue(pageWidthContext), reldims.bpd);
@@ -62,7 +62,7 @@ public class RegionEnd extends RegionSE {
             vpRect = new Rectangle(reldims.ipd - getExtent().getValue(pageHeightContext), 0,
                     reldims.bpd, getExtent().getValue(pageHeightContext));
         }
-        adjustIPD(vpRect, spm.getWritingMode(), neighbourContext);
+        adjustIPD(vpRect, layoutMaster.getWritingMode(), neighbourContext);
         return vpRect;
     }
 

src/java/org/apache/fop/fo/pagination/RegionStart.java

@@ -44,7 +44,7 @@ public class RegionStart extends RegionSE {
     }
 
     /** {@inheritDoc} */
-    public Rectangle getViewportRectangle (FODimension reldims, SimplePageMaster spm) {
+    public Rectangle getViewportRectangle (FODimension reldims) {
         /* Special rules apply to resolving extent as values are resolved relative
          * to the page size and reference orientation.
          */
@@ -52,14 +52,14 @@ public class RegionStart extends RegionSE {
         PercentBaseContext pageHeightContext = getPageHeightContext(LengthBase.CUSTOM_BASE);
         PercentBaseContext neighbourContext;
         Rectangle vpRect;
-        if (spm.getWritingMode() == EN_LR_TB || spm.getWritingMode() == EN_RL_TB) {
+        if (layoutMaster.getWritingMode() == EN_LR_TB || layoutMaster.getWritingMode() == EN_RL_TB) {
             neighbourContext = pageHeightContext;
             vpRect = new Rectangle(0, 0, getExtent().getValue(pageWidthContext), reldims.bpd);
         } else {
             neighbourContext = pageWidthContext;
             vpRect = new Rectangle(0, 0, reldims.bpd, getExtent().getValue(pageHeightContext));
         }
-        adjustIPD(vpRect, spm.getWritingMode(), neighbourContext);
+        adjustIPD(vpRect, layoutMaster.getWritingMode(), neighbourContext);
         return vpRect;
     }