| /* |
| * 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 java.util.Arrays; |
| |
| import org.apache.fop.util.CharUtilities; |
| |
| /** |
| * A text inline area. |
| */ |
| public class TextArea extends AbstractTextArea { |
| |
| private static final long serialVersionUID = 7315900267242540809L; |
| |
| /** |
| * Create a text inline area |
| */ |
| public TextArea() { |
| } |
| |
| /** |
| * Constructor with extra parameters: |
| * create a TextAdjustingInfo object |
| * @param stretch the available stretch of the text |
| * @param shrink the available shrink of the text |
| * @param adj the current total adjustment |
| */ |
| public TextArea(int stretch, int shrink, int adj) { |
| super(stretch, shrink, adj); |
| } |
| |
| /** |
| * Remove the old text |
| */ |
| public void removeText() { |
| inlines.clear(); |
| } |
| |
| /** |
| * Create and add a WordArea child to this TextArea. |
| * |
| * @param word the word string |
| * @param offset the offset for the next area |
| */ |
| public void addWord(String word, int offset) { |
| addWord(word, 0, null, null, null, offset); |
| } |
| |
| /** |
| * Create and add a WordArea child to this TextArea. |
| * |
| * @param word the word string |
| * @param offset the offset for the next area |
| * @param level bidirectional level that applies to entire word |
| */ |
| public void addWord(String word, int offset, int level) { |
| addWord(word, 0, null, makeLevels(level, word.length()), null, offset); |
| } |
| |
| /** |
| * Create and add a WordArea child to this TextArea. |
| * |
| * @param word the word string |
| * @param ipd the word's ipd |
| * @param letterAdjust the letter adjustment array (may be null) |
| * @param levels array of resolved bidirectional levels of word characters, |
| * or null if default level |
| * @param gposAdjustments array of general position adjustments or null if none apply |
| * @param blockProgressionOffset the offset for the next area |
| */ |
| public void addWord |
| ( String word, int ipd, int[] letterAdjust, int[] levels, |
| int[][] gposAdjustments, int blockProgressionOffset ) { |
| int minWordLevel = findMinLevel ( levels ); |
| WordArea wordArea = new WordArea |
| ( blockProgressionOffset, minWordLevel, word, letterAdjust, levels, gposAdjustments ); |
| wordArea.setIPD ( ipd ); |
| addChildArea(wordArea); |
| wordArea.setParentArea(this); |
| updateLevel(minWordLevel); |
| } |
| |
| /** |
| * Create and add a SpaceArea child to this TextArea |
| * |
| * @param space the space character |
| * @param ipd the space's ipd |
| * @param blockProgressionOffset the offset for the next area |
| * @param adjustable is this space adjustable? |
| * @param level resolved bidirection level of space character |
| */ |
| public void addSpace |
| ( char space, int ipd, boolean adjustable, int blockProgressionOffset, int level ) { |
| SpaceArea spaceArea = new SpaceArea(blockProgressionOffset, level, space, adjustable); |
| spaceArea.setIPD ( ipd ); |
| addChildArea(spaceArea); |
| spaceArea.setParentArea(this); |
| updateLevel(level); |
| } |
| |
| /** |
| * Get the whole text string. |
| * Renderers whose space adjustment handling is not affected |
| * by multi-byte characters can use this method to render the |
| * whole TextArea at once; the other renderers (for example |
| * PDFRenderer) have to implement renderWord(WordArea) and |
| * renderSpace(SpaceArea) in order to correctly place each |
| * text fragment. |
| * |
| * @return the text string |
| */ |
| public String getText() { |
| StringBuffer text = new StringBuffer(); |
| // assemble the text |
| for (InlineArea inline : inlines) { |
| if (inline instanceof WordArea) { |
| text.append(((WordArea) inline).getWord()); |
| } else { |
| text.append(((SpaceArea) inline).getSpace()); |
| } |
| } |
| return text.toString(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public String toString() { |
| StringBuffer sb = new StringBuffer(super.toString()); |
| sb.append(" {text=\""); |
| sb.append(CharUtilities.toNCRefs(getText())); |
| sb.append("\""); |
| sb.append("}"); |
| return sb.toString(); |
| } |
| |
| private void updateLevel ( int newLevel ) { |
| if ( newLevel >= 0 ) { |
| int curLevel = getBidiLevel(); |
| if ( curLevel >= 0 ) { |
| if ( newLevel < curLevel ) { |
| setBidiLevel ( newLevel ); |
| } |
| } else { |
| setBidiLevel ( newLevel ); |
| } |
| } |
| } |
| |
| private static int findMinLevel ( int[] levels ) { |
| if ( levels != null ) { |
| int lMin = Integer.MAX_VALUE; |
| for ( int i = 0, n = levels.length; i < n; i++ ) { |
| int l = levels [ i ]; |
| if ( ( l >= 0 ) && ( l < lMin ) ) { |
| lMin = l; |
| } |
| } |
| if ( lMin == Integer.MAX_VALUE ) { |
| return -1; |
| } else { |
| return lMin; |
| } |
| } else { |
| return -1; |
| } |
| } |
| |
| private int[] makeLevels ( int level, int count ) { |
| if ( level >= 0 ) { |
| int[] levels = new int [ count ]; |
| Arrays.fill ( levels, level ); |
| return levels; |
| } else { |
| return null; |
| } |
| } |
| |
| } |
| |