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189 lines
6.4 KiB
Java
189 lines
6.4 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 2009-2024, Arnaud Roques
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*
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* Project Info: https://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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* https://plantuml.com/patreon (only 1$ per month!)
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* https://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.klimt.shape;
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import net.sourceforge.plantuml.klimt.UShape;
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import net.sourceforge.plantuml.klimt.UStroke;
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import net.sourceforge.plantuml.klimt.UTranslate;
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import net.sourceforge.plantuml.klimt.creole.Stencil;
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import net.sourceforge.plantuml.klimt.drawing.UGraphic;
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import net.sourceforge.plantuml.klimt.font.StringBounder;
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import net.sourceforge.plantuml.klimt.geom.XDimension2D;
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public class UHorizontalLine implements UShape {
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// ::remove file when __HAXE__
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private final double skipAtStart;
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private final double skipAtEnd;
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private final TextBlock title;
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private final boolean blankTitle;
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private final char style;
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private final double defaultThickness;
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private UHorizontalLine(double defaultThickness, double skipAtStart, double skipAtEnd, TextBlock title,
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boolean blankTitle, char style) {
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this.defaultThickness = defaultThickness;
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this.skipAtEnd = skipAtEnd;
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this.skipAtStart = skipAtStart;
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this.title = title;
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this.blankTitle = blankTitle;
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this.style = style;
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}
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public static UHorizontalLine infinite(double defaultThickness, double skipAtStart, double skipAtEnd, char style) {
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return new UHorizontalLine(defaultThickness, skipAtStart, skipAtEnd, null, false, style);
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}
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public static UHorizontalLine infinite(double defaultThickness, double skipAtStart, double skipAtEnd,
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TextBlock title, char style) {
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return new UHorizontalLine(defaultThickness, skipAtStart, skipAtEnd, title, false, style);
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}
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public boolean isDouble() {
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return style == '=';
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}
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// static public UHorizontalLine infinite(UStroke stroke) {
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// return new UHorizontalLine(0, 0, null, false, stroke);
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// }
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public void drawLineInternal(final UGraphic ug, Stencil stencil, double y, UStroke defaultStroke) {
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stencil = addSkip(stencil);
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final UStroke strokeToUse = style == '\0' ? defaultStroke : getStroke();
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final UGraphic ugStroke = ug.apply(strokeToUse);
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if (title == null) {
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drawHLine(stencil, y, ugStroke);
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return;
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}
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final XDimension2D dimTitle = title.calculateDimension(ug.getStringBounder());
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drawHLine(firstHalf(stencil, dimTitle.getWidth()), y, ugStroke);
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final double startingX = stencil.getStartingX(ug.getStringBounder(), y);
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final double endingX = stencil.getEndingX(ug.getStringBounder(), y);
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drawTitleInternal(ug, startingX, endingX, y, false);
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drawHLine(secondHalf(stencil, dimTitle.getWidth()), y, ugStroke);
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}
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private Stencil addSkip(final Stencil stencil) {
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return new Stencil() {
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public double getStartingX(StringBounder stringBounder, double y) {
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return stencil.getStartingX(stringBounder, y) + skipAtStart;
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}
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public double getEndingX(StringBounder stringBounder, double y) {
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return stencil.getEndingX(stringBounder, y) - skipAtEnd;
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}
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};
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}
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private static Stencil firstHalf(final Stencil stencil, final double widthTitle) {
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return new Stencil() {
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public double getStartingX(StringBounder stringBounder, double y) {
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return stencil.getStartingX(stringBounder, y);
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}
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public double getEndingX(StringBounder stringBounder, double y) {
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final double start = stencil.getStartingX(stringBounder, y);
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final double end = stencil.getEndingX(stringBounder, y);
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final double len = (end - start - widthTitle) / 2;
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return start + len;
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}
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};
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}
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private static Stencil secondHalf(final Stencil stencil, final double widthTitle) {
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return new Stencil() {
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public double getStartingX(StringBounder stringBounder, double y) {
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final double start = stencil.getStartingX(stringBounder, y);
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final double end = stencil.getEndingX(stringBounder, y);
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final double len = (end - start - widthTitle) / 2;
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return end - len;
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}
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public double getEndingX(StringBounder stringBounder, double y) {
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return stencil.getEndingX(stringBounder, y);
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}
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};
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}
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private void drawHLine(Stencil stencil, double y, final UGraphic ug) {
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drawSimpleHline(ug, stencil, y);
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if (style == '=')
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drawSimpleHline(ug, stencil, y + 2);
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}
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private static void drawSimpleHline(UGraphic ug, Stencil stencil, double y) {
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final double startingX = stencil.getStartingX(ug.getStringBounder(), y);
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final double endingX = stencil.getEndingX(ug.getStringBounder(), y);
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ug.apply(new UTranslate(startingX, y)).draw(ULine.hline(endingX - startingX));
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}
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public void drawTitleInternal(UGraphic ug, double startingX, double endingX, double y, boolean clearArea) {
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if (title == null || blankTitle) {
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return;
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}
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final double widthToUse = endingX - startingX;
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final XDimension2D dimTitle = title.calculateDimension(ug.getStringBounder());
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final double space = (widthToUse - dimTitle.getWidth()) / 2;
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final double x1 = startingX + space;
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final double y1 = y - dimTitle.getHeight() / 2 - 0.5;
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ug = ug.apply(new UTranslate(x1, y1));
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if (clearArea) {
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ug.apply(getStroke()).draw(URectangle.build(dimTitle));
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}
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title.drawU(ug);
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}
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public void drawMe(UGraphic ug) {
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ug.draw(this);
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}
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public UStroke getStroke() {
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if (style == '\0')
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throw new IllegalStateException();
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else if (style == '=')
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return UStroke.simple();
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else if (style == '.')
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return new UStroke(1, 2, 1);
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else if (style == '-')
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return UStroke.simple();
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else
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return UStroke.withThickness(defaultThickness);
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}
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}
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