/***************************************************************************** * * 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. * ****************************************************************************/ package org.apache.padaf.preflight.font; import org.apache.fontbox.ttf.TrueTypeFont; import org.apache.padaf.preflight.ValidationConstants; public class CFFType2FontContainer extends AbstractFontContainer { /** * Object which contains the TrueType font data (used in the CFFType2 font) * extracted by the TrueTypeParser object */ private TrueTypeFont fontObject = null; private CIDToGIDMap cidToGidMap = null; private int numberOfLongHorMetrics; private int unitsPerEm; private int[] glyphWidths; public CFFType2FontContainer(CompositeFontContainer container) { super(container.getFont()); this.cidKnownByFont.putAll(container.cidKnownByFont); this.isFontProgramEmbedded = container.isFontProgramEmbedded; this.errors.addAll(container.errors); } @Override public void checkCID(int cid) throws GlyphException { if (isAlreadyComputedCid(cid)) { return; } final float widthProvidedByPdfDictionary = this.font.getFontWidth(cid); final int glyphIndex = getGlyphIndex(cid); if(this.fontObject.getGlyph().getGlyphs().length <= glyphIndex) { GlyphException ge = new GlyphException(ValidationConstants.ERROR_FONTS_GLYPH_MISSING, cid, "CID " + cid + " is missing from font \"" + this.font.getBaseFont() + "\""); addKnownCidElement(new GlyphDetail(cid, ge)); throw ge; } // glyph exists we can check the width float glypdWidth = glyphWidths[numberOfLongHorMetrics - 1]; if (glyphIndex < numberOfLongHorMetrics) { glypdWidth = glyphWidths[glyphIndex]; } float widthInFontProgram = ((glypdWidth * 1000) / unitsPerEm); checkWidthsConsistency(cid, widthProvidedByPdfDictionary, widthInFontProgram); addKnownCidElement(new GlyphDetail(cid)); } /** * If CIDToGID map is Identity, the GID equals to the CID. * Otherwise the conversion is done by the CIDToGID map * @param cid * @return * @throws GlyphException */ private int getGlyphIndex(int cid) throws GlyphException { int glyphIndex = cid; if (this.cidToGidMap != null) { glyphIndex = cidToGidMap.getGID(cid); if (glyphIndex==cidToGidMap.NOTDEF_GLYPH_INDEX) { GlyphException ge = new GlyphException(ValidationConstants.ERROR_FONTS_GLYPH_MISSING, cid, "CID " + cid + " can't be found in the cidToGid map"); addKnownCidElement(new GlyphDetail(cid, ge)); throw ge; } } return glyphIndex; } void setFontObject(TrueTypeFont fontObject) { this.fontObject = fontObject; } void setCmap(CIDToGIDMap cmap) { this.cidToGidMap = cmap; } void setNumberOfLongHorMetrics(int numberOfLongHorMetrics) { this.numberOfLongHorMetrics = numberOfLongHorMetrics; } void setUnitsPerEm(int unitsPerEm) { this.unitsPerEm = unitsPerEm; } void setGlyphWidths(int[] _glyphWidths) { this.glyphWidths = new int[_glyphWidths.length]; for( int i =0 ; i < _glyphWidths.length; ++i) { this.glyphWidths[i] = _glyphWidths[i]; } } }