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178 lines
6.7 KiB
Java
178 lines
6.7 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.project;
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import net.sourceforge.plantuml.Direction;
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import net.sourceforge.plantuml.graphic.StringBounder;
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import net.sourceforge.plantuml.graphic.UDrawable;
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import net.sourceforge.plantuml.project.core.Task;
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import net.sourceforge.plantuml.project.core.TaskAttribute;
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import net.sourceforge.plantuml.project.core.TaskInstant;
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import net.sourceforge.plantuml.project.draw.TaskDraw;
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import net.sourceforge.plantuml.project.timescale.TimeScale;
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import net.sourceforge.plantuml.style.PName;
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import net.sourceforge.plantuml.style.SName;
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import net.sourceforge.plantuml.style.Style;
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import net.sourceforge.plantuml.style.StyleBuilder;
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import net.sourceforge.plantuml.style.StyleSignature;
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import net.sourceforge.plantuml.ugraphic.UGraphic;
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import net.sourceforge.plantuml.ugraphic.ULine;
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import net.sourceforge.plantuml.ugraphic.UStroke;
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import net.sourceforge.plantuml.ugraphic.UTranslate;
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import net.sourceforge.plantuml.ugraphic.color.HColorSet;
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public class GanttArrow implements UDrawable {
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private final TimeScale timeScale;
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private final Direction atStart;
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private final TaskInstant source;
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private final Direction atEnd;
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private final TaskInstant dest;
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private final HColorSet colorSet;
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private final Style style;
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private final ToTaskDraw toTaskDraw;
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private final StyleBuilder styleBuilder;
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public GanttArrow(HColorSet colorSet, Style style, TimeScale timeScale, TaskInstant source, TaskInstant dest,
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ToTaskDraw toTaskDraw, StyleBuilder styleBuilder) {
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this.styleBuilder = styleBuilder;
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this.toTaskDraw = toTaskDraw;
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this.style = style;
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this.colorSet = colorSet;
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this.timeScale = timeScale;
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this.source = source;
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this.dest = dest;
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if (source.getAttribute() == TaskAttribute.END && dest.getAttribute() == TaskAttribute.START) {
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this.atStart = source.sameRowAs(dest) ? Direction.LEFT : Direction.DOWN;
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this.atEnd = Direction.RIGHT;
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} else if (source.getAttribute() == TaskAttribute.END && dest.getAttribute() == TaskAttribute.END) {
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this.atStart = Direction.RIGHT;
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this.atEnd = Direction.LEFT;
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} else if (source.getAttribute() == TaskAttribute.START && dest.getAttribute() == TaskAttribute.START) {
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this.atStart = Direction.LEFT;
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this.atEnd = Direction.RIGHT;
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} else if (source.getAttribute() == TaskAttribute.START && dest.getAttribute() == TaskAttribute.END) {
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this.atStart = source.sameRowAs(dest) ? Direction.RIGHT : Direction.DOWN;
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this.atEnd = Direction.LEFT;
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} else {
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throw new IllegalArgumentException();
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}
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}
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private TaskDraw getSource() {
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return toTaskDraw.getTaskDraw((Task) source.getMoment());
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}
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private TaskDraw getDestination() {
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return toTaskDraw.getTaskDraw((Task) dest.getMoment());
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}
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public void drawU(UGraphic ug) {
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ug = style.applyStrokeAndLineColor(ug, colorSet, styleBuilder.getSkinParam().getThemeStyle());
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double x1 = getX(source.getAttribute(), getSource(), atStart);
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final StringBounder stringBounder = ug.getStringBounder();
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double y1 = getSource().getY(stringBounder, atStart);
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final double x2 = getX(dest.getAttribute(), getDestination(), atEnd.getInv());
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final double y2 = getDestination().getY(stringBounder, atEnd);
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if (atStart == Direction.DOWN && y2 < y1) {
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y1 = getSource().getY(stringBounder, atStart.getInv());
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}
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final double minimalWidth = 8;
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// final Style style = getStyleSignatureTask().getMergedStyle(styleBuilder);
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// final ClockwiseTopRightBottomLeft margin = style.getMargin();
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// final ClockwiseTopRightBottomLeft padding = style.getPadding();
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if (this.atStart == Direction.DOWN && this.atEnd == Direction.RIGHT) {
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if (x2 > x1) {
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if (x2 - x1 < minimalWidth) {
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x1 = x2 - minimalWidth;
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}
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drawLine(ug, x1, y1, x1, y2, x2, y2);
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} else {
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x1 = getX(source.getAttribute(), getSource(), Direction.RIGHT);
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y1 = getSource().getY(stringBounder, Direction.RIGHT);
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final double y1b = getDestination().getY(stringBounder).getCurrentValue();
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drawLine(ug, x1, y1, x1 + 6, y1, x1 + 6, y1b, x2 - 8, y1b, x2 - 8, y2, x2, y2);
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}
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} else if (this.atStart == Direction.RIGHT && this.atEnd == Direction.LEFT) {
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final double xmax = Math.max(x1, x2) + 8;
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drawLine(ug, x1, y1, xmax, y1, xmax, y2, x2, y2);
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} else if (this.atStart == Direction.LEFT && this.atEnd == Direction.RIGHT) {
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final double xmin = Math.min(x1, x2) - 8;
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drawLine(ug, x1, y1, xmin, y1, xmin, y2, x2, y2);
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} else if (this.atStart == Direction.DOWN && this.atEnd == Direction.LEFT) {
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drawLine(ug, x1, y1, x1, y2, x2, y2);
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} else {
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throw new IllegalArgumentException();
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}
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ug = ug.apply(new UStroke(1.5)).apply(
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style.value(PName.LineColor).asColor(styleBuilder.getSkinParam().getThemeStyle(), colorSet).bg());
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ug.apply(new UTranslate(x2, y2)).draw(Arrows.asTo(atEnd));
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}
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private void drawLine(UGraphic ug, double... coord) {
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for (int i = 0; i < coord.length - 2; i += 2) {
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final double x1 = coord[i];
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final double y1 = coord[i + 1];
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final double x2 = coord[i + 2];
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final double y2 = coord[i + 3];
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ug.apply(new UTranslate(x1, y1)).draw(new ULine(x2 - x1, y2 - y1));
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}
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}
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private StyleSignature getStyleSignatureTask() {
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return StyleSignature.of(SName.root, SName.element, SName.ganttDiagram, SName.task);
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}
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private double getX(TaskAttribute taskAttribute, TaskDraw task, Direction direction) {
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if (direction == Direction.LEFT) {
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return task.getX1(taskAttribute) - 1;
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}
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if (direction == Direction.RIGHT) {
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return task.getX2(taskAttribute) + 1;
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}
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return (task.getX1(taskAttribute) + (task.getX2(taskAttribute))) / 2;
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}
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}
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