123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110 |
- /*
- * 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.render.afp;
-
- import org.apache.batik.bridge.SVGTextElementBridge;
- import org.apache.batik.bridge.BridgeContext;
- import org.apache.batik.gvt.GraphicsNode;
- import org.apache.batik.gvt.TextNode;
- import org.apache.batik.gvt.TextPainter;
- import org.w3c.dom.Element;
- import org.w3c.dom.Node;
-
- /**
- * Bridge class for the <text> element.
- * This bridge will use the direct text painter if the text
- * for the element is simple.
- */
- public class AFPTextElementBridge extends SVGTextElementBridge {
-
- private AFPTextPainter textPainter;
-
- /**
- * Constructs a new bridge for the <text> element.
- * @param textPainter the text painter to use
- */
- public AFPTextElementBridge(AFPTextPainter textPainter) {
- this.textPainter = textPainter;
- }
-
- /**
- * Create a text element bridge.
- * This set the text painter on the node if the text is simple.
- * @param ctx the bridge context
- * @param e the svg element
- * @return the text graphics node created by the super class
- */
- public GraphicsNode createGraphicsNode(BridgeContext ctx, Element e) {
- GraphicsNode node = super.createGraphicsNode(ctx, e);
- if (node != null && isSimple(ctx, e, node)) {
- ((TextNode)node).setTextPainter(getTextPainter());
- }
- return node;
- }
-
- private TextPainter getTextPainter() {
- return this.textPainter;
- }
-
- /**
- * Check if text element contains simple text.
- * This checks the children of the text element to determine
- * if the text is simple. The text is simple if it can be rendered
- * with basic text drawing algorithms. This means there are no
- * alternate characters, the font is known and there are no effects
- * applied to the text.
- *
- * @param ctx the bridge context
- * @param element the svg text element
- * @param node the graphics node
- * @return true if this text is simple of false if it cannot be
- * easily rendered using normal drawString on the PDFGraphics2D
- */
- private boolean isSimple(BridgeContext ctx, Element element, GraphicsNode node) {
- for (Node n = element.getFirstChild();
- n != null;
- n = n.getNextSibling()) {
-
- switch (n.getNodeType()) {
- case Node.ELEMENT_NODE:
-
- if (n.getLocalName().equals(SVG_TSPAN_TAG)
- || n.getLocalName().equals(SVG_ALT_GLYPH_TAG)) {
- return false;
- } else if (n.getLocalName().equals(SVG_TEXT_PATH_TAG)) {
- return false;
- } else if (n.getLocalName().equals(SVG_TREF_TAG)) {
- return false;
- }
- break;
- case Node.TEXT_NODE:
- case Node.CDATA_SECTION_NODE:
- default:
- }
- }
-
- /*if (CSSUtilities.convertFilter(element, node, ctx) != null) {
- return false;
- }*/
-
- return true;
- }
- }
|