| /* |
| * 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.svg; |
| |
| import org.apache.fop.fonts.Font; |
| import org.apache.fop.fonts.FontInfo; |
| import org.apache.fop.fonts.Typeface; |
| |
| /** |
| * Utility class for generating PDF text objects. It needs to be subclassed to add writing |
| * functionality (see {@link #write(String)}). |
| */ |
| public abstract class PDFTextUtil extends org.apache.fop.pdf.PDFTextUtil { |
| |
| private FontInfo fontInfo; |
| private Font[] fonts; |
| private Font font; |
| |
| /** |
| * Main constructor. |
| * @param fontInfo the font catalog |
| */ |
| public PDFTextUtil(FontInfo fontInfo) { |
| super(); |
| this.fontInfo = fontInfo; |
| } |
| |
| /** {@inheritDoc} */ |
| protected void initValues() { |
| super.initValues(); |
| this.font = null; |
| } |
| |
| /** |
| * Sets the current fonts for the text object. For every character, the suitable font will |
| * be selected. |
| * @param fonts the new fonts |
| */ |
| public void setFonts(Font[] fonts) { |
| this.fonts = fonts; |
| } |
| |
| /** |
| * Sets the current font for the text object. |
| * @param font the new font |
| */ |
| public void setFont(Font font) { |
| setFonts(new Font[] {font}); |
| } |
| |
| /** |
| * Returns the current font in use. |
| * @return the current font or null if no font is currently active. |
| */ |
| public Font getCurrentFont() { |
| return this.font; |
| } |
| |
| /** |
| * Sets the current font. |
| * @param f the new font to use |
| */ |
| public void setCurrentFont(Font f) { |
| this.font = f; |
| } |
| |
| /** |
| * Determines whether the font with the given name is a multi-byte font. |
| * @param name the name of the font |
| * @return true if it's a multi-byte font |
| */ |
| protected boolean isMultiByteFont(String name) { |
| Typeface f = (Typeface)fontInfo.getFonts().get(name); |
| return f.isMultiByte(); |
| } |
| |
| /** |
| * Writes a "Tf" command, setting a new current font. |
| * @param f the font to select |
| */ |
| public void writeTf(Font f) { |
| String fontName = f.getFontName(); |
| float fontSize = (float)f.getFontSize() / 1000f; |
| updateTf(fontName, fontSize, isMultiByteFont(fontName)); |
| } |
| |
| /** |
| * Selects a font from the font list suitable to display the given character. |
| * @param ch the character |
| * @return the recommended Font to use |
| */ |
| public Font selectFontForChar(char ch) { |
| for (int i = 0, c = fonts.length; i < c; i++) { |
| if (fonts[i].hasChar(ch)) { |
| return fonts[i]; |
| } |
| } |
| return fonts[0]; //TODO Maybe fall back to painting with shapes |
| } |
| |
| /** |
| * Writes a char to the "TJ-Buffer". |
| * @param ch the unmapped character |
| */ |
| public void writeTJChar(char ch) { |
| char mappedChar = font.mapChar(ch); |
| writeTJMappedChar(mappedChar); |
| } |
| |
| } |