/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2017, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*/
package net.sourceforge.plantuml.ugraphic.eps;
import java.awt.Color;
import java.awt.Shape;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import java.awt.geom.PathIterator;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.plantuml.FileFormat;
import net.sourceforge.plantuml.TikzFontDistortion;
import net.sourceforge.plantuml.eps.EpsGraphics;
import net.sourceforge.plantuml.eps.EpsGraphicsMacroAndText;
import net.sourceforge.plantuml.eps.EpsStrategy;
import net.sourceforge.plantuml.graphic.FontConfiguration;
import net.sourceforge.plantuml.graphic.FontStyle;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlockUtils;
import net.sourceforge.plantuml.ugraphic.ClipContainer;
import net.sourceforge.plantuml.ugraphic.ColorMapper;
import net.sourceforge.plantuml.ugraphic.MinMax;
import net.sourceforge.plantuml.ugraphic.UClip;
import net.sourceforge.plantuml.ugraphic.UDriver;
import net.sourceforge.plantuml.ugraphic.UFont;
import net.sourceforge.plantuml.ugraphic.UParam;
import net.sourceforge.plantuml.ugraphic.UShape;
import net.sourceforge.plantuml.ugraphic.UText;
public class DriverTextEps implements UDriver {
private final StringBounder stringBounder;
private final ClipContainer clipContainer;
private final FontRenderContext fontRenderContext;
private final EpsStrategy strategy;
public DriverTextEps(ClipContainer clipContainer, EpsStrategy strategy) {
this.stringBounder = FileFormat.PNG.getDefaultStringBounder(TikzFontDistortion.getDefault());
this.clipContainer = clipContainer;
this.fontRenderContext = TextBlockUtils.getFontRenderContext();
this.strategy = strategy;
}
public void draw(UShape ushape, double x, double y, ColorMapper mapper, UParam param, EpsGraphics eps) {
final UClip clip = clipContainer.getClip();
if (clip != null && clip.isInside(x, y) == false) {
return;
}
final UText shape = (UText) ushape;
if (strategy == EpsStrategy.WITH_MACRO_AND_TEXT) {
drawAsText(shape, x, y, param, eps, mapper);
return;
}
final FontConfiguration fontConfiguration = shape.getFontConfiguration();
final UFont font = fontConfiguration.getFont();
final TextLayout textLayout = new TextLayout(shape.getText(), font.getFont(), fontRenderContext);
// System.err.println("text=" + shape.getText());
MinMax dim = null;
if (fontConfiguration.containsStyle(FontStyle.BACKCOLOR)) {
final Color extended = mapper.getMappedColor(fontConfiguration.getExtendedColor());
if (extended != null) {
eps.setStrokeColor(extended);
eps.setFillColor(extended);
eps.setStrokeWidth("1", 0, 0);
if (dim == null) {
dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
}
eps.epsRectangle(dim.getMinX() - 1, dim.getMinY() - 1, dim.getWidth() + 2, dim.getHeight() + 2, 0, 0);
}
}
eps.setStrokeColor(mapper.getMappedColor(fontConfiguration.getColor()));
drawPathIterator(eps, x, y, getOutline(textLayout));
if (fontConfiguration.containsStyle(FontStyle.UNDERLINE)) {
final HtmlColor extended = fontConfiguration.getExtendedColor();
if (extended != null) {
eps.setStrokeColor(mapper.getMappedColor(extended));
}
if (dim == null) {
dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
}
eps.setStrokeWidth("1.1", 0, 0);
eps.epsLine(x, y + 1.5, x + dim.getWidth(), y + 1.5);
eps.setStrokeWidth("1", 0, 0);
}
if (fontConfiguration.containsStyle(FontStyle.WAVE)) {
if (dim == null) {
dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
}
final int ypos = (int) (y + 2.5) - 1;
final HtmlColor extended = fontConfiguration.getExtendedColor();
if (extended != null) {
eps.setStrokeColor(mapper.getMappedColor(extended));
}
eps.setStrokeWidth("1.1", 0, 0);
for (int i = (int) x; i < x + dim.getWidth() - 5; i += 6) {
eps.epsLine(i, ypos - 0, i + 3, ypos + 1);
eps.epsLine(i + 3, ypos + 1, i + 6, ypos - 0);
}
eps.setStrokeWidth("1", 0, 0);
}
if (fontConfiguration.containsStyle(FontStyle.STRIKE)) {
final HtmlColor extended = fontConfiguration.getExtendedColor();
if (extended != null) {
eps.setStrokeColor(mapper.getMappedColor(extended));
}
if (dim == null) {
dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
}
// final FontMetrics fm = font.getFontMetrics();
final double ypos = (dim.getMinY() + dim.getMaxY() * 2) / 3;
eps.setStrokeWidth("1.3", 0, 0);
eps.epsLine(x, ypos, x + dim.getWidth(), ypos);
eps.setStrokeWidth("1", 0, 0);
}
}
private Shape getOutline(final TextLayout textLayout) {
return textLayout.getOutline(null);
}
private void drawAsText(UText shape, double x, double y, UParam param, EpsGraphics eps, ColorMapper mapper) {
final FontConfiguration fontConfiguration = shape.getFontConfiguration();
// final FontMetrics fm = g2dummy.getFontMetrics(fontConfiguration.getFont().getFont());
// final double ypos = y - fm.getDescent() + 0.5;
final double ypos = y - 1;
eps.setStrokeColor(mapper.getMappedColor(fontConfiguration.getColor()));
((EpsGraphicsMacroAndText) eps).drawText(shape.getText(), fontConfiguration, x, ypos);
}
static void drawPathIterator(EpsGraphics eps, double x, double y, Shape shape) {
final List breaks = analyze(shape);
if (breaks.size() == 0) {
final PathIterator path = shape.getPathIterator(null);
drawSingle(eps, x, y, path);
return;
}
// System.err.println("breaks=" + breaks);
final PathIterator path = new PathIteratorLimited(shape, 0, breaks.get(0));
drawSingle(eps, x, y, path);
for (int i = 0; i < breaks.size() - 1; i++) {
final PathIterator path2 = new PathIteratorLimited(shape, breaks.get(i) + 1, breaks.get(i + 1));
drawSingle(eps, x, y, path2);
}
final PathIterator path3 = new PathIteratorLimited(shape, breaks.get(breaks.size() - 1) + 1, Integer.MAX_VALUE);
drawSingle(eps, x, y, path3);
}
private static void drawSingle(EpsGraphics eps, double x, double y, final PathIterator path) {
eps.newpath();
final double coord[] = new double[6];
while (path.isDone() == false) {
final int code = path.currentSegment(coord);
if (code == PathIterator.SEG_MOVETO) {
eps.moveto(coord[0] + x, coord[1] + y);
} else if (code == PathIterator.SEG_LINETO) {
eps.lineto(coord[0] + x, coord[1] + y);
} else if (code == PathIterator.SEG_CLOSE) {
eps.closepath();
} else if (code == PathIterator.SEG_CUBICTO) {
eps.curveto(coord[0] + x, coord[1] + y, coord[2] + x, coord[3] + y, coord[4] + x, coord[5] + y);
} else if (code == PathIterator.SEG_QUADTO) {
eps.quadto(coord[0] + x, coord[1] + y, coord[2] + x, coord[3] + y);
} else {
throw new UnsupportedOperationException("code=" + code);
}
path.next();
}
eps.fill(path.getWindingRule());
}
private static List analyze(Shape shape) {
int count = PathIteratorLimited.count(shape);
final List closings = getClosings(shape.getPathIterator(null));
final List result = new ArrayList();
for (Integer cl : closings) {
if (cl + 2 >= count) {
break;
}
final PathIterator path1 = new PathIteratorLimited(shape, 0, cl);
final PathIterator path2 = new PathIteratorLimited(shape, cl + 1, Integer.MAX_VALUE);
final double max1 = getMinMax(0, 0, path1).getMaxX();
final double min2 = getMinMax(0, 0, path2).getMinX();
if (min2 > max1) {
result.add(cl);
}
}
return result;
}
private static List getClosings(PathIterator path) {
final List result = new ArrayList();
int current = 0;
final double coord[] = new double[6];
while (path.isDone() == false) {
final int code = path.currentSegment(coord);
if (code == PathIterator.SEG_CLOSE) {
result.add(current);
}
current++;
path.next();
}
return result;
}
static private MinMax getMinMax(double x, double y, PathIterator path) {
MinMax result = MinMax.getEmpty(false);
final double coord[] = new double[6];
while (path.isDone() == false) {
final int code = path.currentSegment(coord);
if (code == PathIterator.SEG_MOVETO) {
result = result.addPoint(coord[0] + x, coord[1] + y);
} else if (code == PathIterator.SEG_LINETO) {
result = result.addPoint(coord[0] + x, coord[1] + y);
} else if (code == PathIterator.SEG_CLOSE) {
} else if (code == PathIterator.SEG_CUBICTO) {
result = result.addPoint(coord[0] + x, coord[1] + y);
result = result.addPoint(coord[2] + x, coord[3] + y);
result = result.addPoint(coord[4] + x, coord[5] + y);
} else if (code == PathIterator.SEG_QUADTO) {
result = result.addPoint(coord[0] + x, coord[1] + y);
result = result.addPoint(coord[2] + x, coord[3] + y);
} else {
throw new UnsupportedOperationException("code=" + code);
}
path.next();
}
return result;
}
}
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