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- /*
- * 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.pdf;
-
- import java.awt.Color;
- import java.awt.Point;
- import java.awt.Rectangle;
- import java.io.IOException;
-
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.fop.fo.Constants;
- import org.apache.fop.render.intermediate.BorderPainter;
- import org.apache.fop.traits.RuleStyle;
- import org.apache.fop.util.ColorUtil;
-
- /**
- * PDF-specific implementation of the {@link BorderPainter}.
- */
- public class PDFBorderPainter extends BorderPainter {
-
- /** logging instance */
- private static final Log LOG = LogFactory.getLog(PDFBorderPainter.class);
-
- private PDFContentGenerator generator;
-
- /**
- * Construct a border painter.
- * @param generator a pdf content generator
- */
- public PDFBorderPainter(PDFContentGenerator generator) {
- this.generator = generator;
- }
-
- /** {@inheritDoc} */
- protected void drawBorderLine( // CSOK: ParameterNumber
- int x1, int y1, int x2, int y2, boolean horz,
- boolean startOrBefore, int style, Color col) {
- //TODO lose scale?
- drawBorderLine(generator, x1 / 1000f, y1 / 1000f, x2 / 1000f, y2 / 1000f,
- horz, startOrBefore, style, col);
- }
-
- /**
- * @param generator pdf content generator
- * @see BorderPainter#drawBorderLine
- */
- public static void drawBorderLine( // CSOK: ParameterNumber|MethodLength
- PDFContentGenerator generator,
- float x1, float y1, float x2, float y2, boolean horz, // CSOK: JavadocMethod
- boolean startOrBefore, int style, Color col) { // CSOK: JavadocMethod
- float colFactor;
- float w = x2 - x1;
- float h = y2 - y1;
- /*
- if ((w < 0) || (h < 0)) {
- LOG.error("Negative extent received (w=" + w + ", h=" + h
- + "). Border won't be painted.");
- return;
- }*/
- switch (style) {
- case Constants.EN_DASHED:
- generator.setColor(col, false);
- if (horz) {
- float unit = Math.abs(2 * h);
- int rep = (int)(w / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = w / rep;
- generator.add("[" + format(unit) + "] 0 d ");
- generator.add(format(h) + " w\n");
- float ym = y1 + (h / 2);
- generator.add(format(x1) + " " + format(ym) + " m "
- + format(x2) + " " + format(ym) + " l S\n");
- } else {
- float unit = Math.abs(2 * w);
- int rep = (int)(h / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = h / rep;
- generator.add("[" + format(unit) + "] 0 d ");
- generator.add(format(w) + " w\n");
- float xm = x1 + (w / 2);
- generator.add(format(xm) + " " + format(y1) + " m "
- + format(xm) + " " + format(y2) + " l S\n");
- }
- break;
- case Constants.EN_DOTTED:
- generator.setColor(col, false);
- generator.add("1 J ");
- if (horz) {
- float unit = Math.abs(2 * h);
- int rep = (int)(w / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = w / rep;
- generator.add("[0 " + format(unit) + "] 0 d ");
- generator.add(format(h) + " w\n");
- float ym = y1 + (h / 2);
- generator.add(format(x1) + " " + format(ym) + " m "
- + format(x2) + " " + format(ym) + " l S\n");
- } else {
- float unit = Math.abs(2 * w);
- int rep = (int)(h / unit);
- if (rep % 2 == 0) {
- rep++;
- }
- unit = h / rep;
- generator.add("[0 " + format(unit) + " ] 0 d ");
- generator.add(format(w) + " w\n");
- float xm = x1 + (w / 2);
- generator.add(format(xm) + " " + format(y1) + " m "
- + format(xm) + " " + format(y2) + " l S\n");
- }
- break;
- case Constants.EN_DOUBLE:
- generator.setColor(col, false);
- generator.add("[] 0 d ");
- if (horz) {
- float h3 = h / 3;
- generator.add(format(h3) + " w\n");
- float ym1 = y1 + (h3 / 2);
- float ym2 = ym1 + h3 + h3;
- generator.add(format(x1) + " " + format(ym1) + " m "
- + format(x2) + " " + format(ym1) + " l S\n");
- generator.add(format(x1) + " " + format(ym2) + " m "
- + format(x2) + " " + format(ym2) + " l S\n");
- } else {
- float w3 = w / 3;
- generator.add(format(w3) + " w\n");
- float xm1 = x1 + (w3 / 2);
- float xm2 = xm1 + w3 + w3;
- generator.add(format(xm1) + " " + format(y1) + " m "
- + format(xm1) + " " + format(y2) + " l S\n");
- generator.add(format(xm2) + " " + format(y1) + " m "
- + format(xm2) + " " + format(y2) + " l S\n");
- }
- break;
- case Constants.EN_GROOVE:
- case Constants.EN_RIDGE:
- colFactor = (style == Constants.EN_GROOVE ? 0.4f : -0.4f);
- generator.add("[] 0 d ");
- if (horz) {
- Color uppercol = ColorUtil.lightenColor(col, -colFactor);
- Color lowercol = ColorUtil.lightenColor(col, colFactor);
- float h3 = h / 3;
- generator.add(format(h3) + " w\n");
- float ym1 = y1 + (h3 / 2);
- generator.setColor(uppercol, false);
- generator.add(format(x1) + " " + format(ym1) + " m "
- + format(x2) + " " + format(ym1) + " l S\n");
- generator.setColor(col, false);
- generator.add(format(x1) + " " + format(ym1 + h3) + " m "
- + format(x2) + " " + format(ym1 + h3) + " l S\n");
- generator.setColor(lowercol, false);
- generator.add(format(x1) + " " + format(ym1 + h3 + h3) + " m "
- + format(x2) + " " + format(ym1 + h3 + h3) + " l S\n");
- } else {
- Color leftcol = ColorUtil.lightenColor(col, -colFactor);
- Color rightcol = ColorUtil.lightenColor(col, colFactor);
- float w3 = w / 3;
- generator.add(format(w3) + " w\n");
- float xm1 = x1 + (w3 / 2);
- generator.setColor(leftcol, false);
- generator.add(format(xm1) + " " + format(y1) + " m "
- + format(xm1) + " " + format(y2) + " l S\n");
- generator.setColor(col, false);
- generator.add(format(xm1 + w3) + " " + format(y1) + " m "
- + format(xm1 + w3) + " " + format(y2) + " l S\n");
- generator.setColor(rightcol, false);
- generator.add(format(xm1 + w3 + w3) + " " + format(y1) + " m "
- + format(xm1 + w3 + w3) + " " + format(y2) + " l S\n");
- }
- break;
- case Constants.EN_INSET:
- case Constants.EN_OUTSET:
- colFactor = (style == Constants.EN_OUTSET ? 0.4f : -0.4f);
- generator.add("[] 0 d ");
- Color c = col;
- if (horz) {
- c = ColorUtil.lightenColor(c, (startOrBefore ? 1 : -1) * colFactor);
- generator.add(format(h) + " w\n");
- float ym1 = y1 + (h / 2);
- generator.setColor(c, false);
- generator.add(format(x1) + " " + format(ym1) + " m "
- + format(x2) + " " + format(ym1) + " l S\n");
- } else {
- c = ColorUtil.lightenColor(c, (startOrBefore ? 1 : -1) * colFactor);
- generator.add(format(w) + " w\n");
- float xm1 = x1 + (w / 2);
- generator.setColor(c, false);
- generator.add(format(xm1) + " " + format(y1) + " m "
- + format(xm1) + " " + format(y2) + " l S\n");
- }
- break;
- case Constants.EN_HIDDEN:
- break;
- default:
- generator.setColor(col, false);
- generator.add("[] 0 d ");
- if (horz) {
- generator.add(format(h) + " w\n");
- float ym = y1 + (h / 2);
- generator.add(format(x1) + " " + format(ym) + " m "
- + format(x2) + " " + format(ym) + " l S\n");
- } else {
- generator.add(format(w) + " w\n");
- float xm = x1 + (w / 2);
- generator.add(format(xm) + " " + format(y1) + " m "
- + format(xm) + " " + format(y2) + " l S\n");
- }
- }
- }
-
- /** {@inheritDoc} */
- public void drawLine(Point start, Point end,
- int width, Color color, RuleStyle style) {
- if (start.y != end.y) {
- //TODO Support arbitrary lines if necessary
- throw new UnsupportedOperationException(
- "Can only deal with horizontal lines right now");
- }
-
- saveGraphicsState();
- int half = width / 2;
- int starty = start.y - half;
- Rectangle boundingRect = new Rectangle(start.x, start.y - half, end.x - start.x, width);
- switch (style.getEnumValue()) {
- case Constants.EN_SOLID:
- case Constants.EN_DASHED:
- case Constants.EN_DOUBLE:
- drawBorderLine(start.x, start.y - half, end.x, end.y + half,
- true, true, style.getEnumValue(), color);
- break;
- case Constants.EN_DOTTED:
- generator.clipRect(boundingRect);
- //This displaces the dots to the right by half a dot's width
- //TODO There's room for improvement here
- generator.add("1 0 0 1 " + format(half) + " 0 cm\n");
- drawBorderLine(start.x, start.y - half, end.x, end.y + half,
- true, true, style.getEnumValue(), color);
- break;
- case Constants.EN_GROOVE:
- case Constants.EN_RIDGE:
- generator.setColor(ColorUtil.lightenColor(color, 0.6f), true);
- generator.add(format(start.x) + " " + format(starty) + " m\n");
- generator.add(format(end.x) + " " + format(starty) + " l\n");
- generator.add(format(end.x) + " " + format(starty + 2 * half) + " l\n");
- generator.add(format(start.x) + " " + format(starty + 2 * half) + " l\n");
- generator.add("h\n");
- generator.add("f\n");
- generator.setColor(color, true);
- if (style == RuleStyle.GROOVE) {
- generator.add(format(start.x) + " " + format(starty) + " m\n");
- generator.add(format(end.x) + " " + format(starty) + " l\n");
- generator.add(format(end.x) + " " + format(starty + half) + " l\n");
- generator.add(format(start.x + half) + " " + format(starty + half) + " l\n");
- generator.add(format(start.x) + " " + format(starty + 2 * half) + " l\n");
- } else {
- generator.add(format(end.x) + " " + format(starty) + " m\n");
- generator.add(format(end.x) + " " + format(starty + 2 * half) + " l\n");
- generator.add(format(start.x) + " " + format(starty + 2 * half) + " l\n");
- generator.add(format(start.x) + " " + format(starty + half) + " l\n");
- generator.add(format(end.x - half) + " " + format(starty + half) + " l\n");
- }
- generator.add("h\n");
- generator.add("f\n");
- break;
- default:
- throw new UnsupportedOperationException("rule style not supported");
- }
- restoreGraphicsState();
- }
-
- static final String format(int coordinate) {
- //TODO lose scale?
- return format(coordinate / 1000f);
- }
-
- static final String format(float coordinate) {
- return PDFContentGenerator.format(coordinate);
- }
-
- /** {@inheritDoc} */
- protected void moveTo(int x, int y) {
- generator.add(format(x) + " " + format(y) + " m ");
- }
-
- /** {@inheritDoc} */
- protected void lineTo(int x, int y) {
- generator.add(format(x) + " " + format(y) + " l ");
- }
-
- /** {@inheritDoc} */
- protected void closePath() {
- generator.add("h ");
- }
-
- /** {@inheritDoc} */
- protected void clip() {
- generator.add("W\n" + "n\n");
- }
-
- /** {@inheritDoc} */
- protected void saveGraphicsState() {
- generator.add("q\n");
- }
-
- /** {@inheritDoc} */
- protected void restoreGraphicsState() {
- generator.add("Q\n");
- }
-
- /** {@inheritDoc} */
- protected void cubicBezierTo(int p1x, int p1y, int p2x, int p2y, int p3x, int p3y) {
- generator.add(format(p1x) + " " + format(p1y) + " " + format(p2x) + " " + format(p2y)
- + " " + format(p3x) + " " + format(p3y) + " c ");
- }
-
-
- private void transformCoordinates(int a, int b, int c, int d, int e, int f) {
- generator.add( "" + format(a) + " " + format(b) + " " + format(c) + " " + format(d)
- + " " + format(e) + " " + format(f) + " cm ");
- }
-
- private void transformCoordinates2(float a, float b, float c, float d, float e, float f) {
- generator.add( "" + format(a) + " " + format(b) + " " + format(c) + " " + format(d)
- + " " + format(e) + " " + format(f) + " cm ");
- }
-
- /** {@inheritDoc} */
- protected void rotateCoordinates(double angle) throws IOException {
- float s = (float)Math.sin(angle);
- float c = (float)Math.cos(angle);
- transformCoordinates2(c, s, -s, c, 0, 0);
- }
-
- /** {@inheritDoc} */
- protected void translateCoordinates(int xTranslate, int yTranslate) throws IOException {
- transformCoordinates(1000, 0, 0, 1000, xTranslate, yTranslate);
- }
-
- /** {@inheritDoc} */
- protected void scaleCoordinates(float xScale, float yScale) throws IOException {
- transformCoordinates2(xScale, 0, 0, yScale, 0, 0);
- }
-
- }
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