- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.area.inline;
-
- import org.apache.fop.area.Area;
-
- import java.util.List;
- import java.util.ArrayList;
-
- /**
- * Inline parent area.
- * This is an inline area that can have other inlines as children.
- */
- public class InlineParent extends InlineArea {
-
- private static final long serialVersionUID = -3047168298770354813L;
-
- /**
- * The list of inline areas added to this inline parent.
- */
- protected List inlines = new ArrayList();
-
- /** Controls whether the IPD is automatically adjusted based on the area's children. */
- protected transient boolean autoSize;
-
- /**
- * Create a new inline parent to add areas to.
- */
- public InlineParent() {
- }
-
- /**
- * Override generic Area method.
- *
- * @param childArea the child area to add
- */
- public void addChildArea(Area childArea) {
- if (inlines.size() == 0) {
- autoSize = (getIPD() == 0);
- }
- if (childArea instanceof InlineArea) {
- InlineArea inlineChildArea = (InlineArea) childArea;
- inlines.add(childArea);
- // set the parent area for the child area
- inlineChildArea.setParentArea(this);
- if (autoSize) {
- increaseIPD(inlineChildArea.getAllocIPD());
- }
- }
- }
-
- /**
- * Get the child areas for this inline parent.
- *
- * @return the list of child areas
- */
- public List getChildAreas() {
- return inlines;
- }
-
- /**
- * recursively apply the variation factor to all descendant areas
- * @param variationFactor the variation factor that must be applied to adjustments
- * @param lineStretch the total stretch of the line
- * @param lineShrink the total shrink of the line
- * @return true if there is an UnresolvedArea descendant
- */
- public boolean applyVariationFactor(double variationFactor,
- int lineStretch, int lineShrink) {
- boolean bUnresolvedAreasPresent = false;
- // recursively apply variation factor to descendant areas
- for (int i = 0, len = inlines.size(); i < len; i++) {
- bUnresolvedAreasPresent |= ((InlineArea)inlines.get(i))
- .applyVariationFactor(variationFactor, lineStretch, lineShrink);
- }
- return bUnresolvedAreasPresent;
- }
- }
-
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