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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2020, 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;
import java.awt.geom.Dimension2D;
import net.sourceforge.plantuml.creole.Stencil;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
public class UHorizontalLine implements UShape {
private final double skipAtStart;
private final double skipAtEnd;
private final TextBlock title;
private final boolean blankTitle;
private final char style;
private UHorizontalLine(double skipAtStart, double skipAtEnd, TextBlock title, boolean blankTitle, char style) {
this.skipAtEnd = skipAtEnd;
this.skipAtStart = skipAtStart;
this.title = title;
this.blankTitle = blankTitle;
this.style = style;
}
public static UHorizontalLine infinite(double skipAtStart, double skipAtEnd, char style) {
return new UHorizontalLine(skipAtStart, skipAtEnd, null, false, style);
}
public static UHorizontalLine infinite(double skipAtStart, double skipAtEnd, TextBlock title, char style) {
return new UHorizontalLine(skipAtStart, skipAtEnd, title, false, style);
}
public boolean isDouble() {
return style == '=';
}
// static public UHorizontalLine infinite(UStroke stroke) {
// return new UHorizontalLine(0, 0, null, false, stroke);
// }
public void drawLineInternal(final UGraphic ug, Stencil stencil, double y, UStroke defaultStroke) {
stencil = addSkip(stencil);
final UStroke strokeToUse = style == '\0' ? defaultStroke : getStroke();
final UGraphic ugStroke = ug.apply(strokeToUse);
if (title == null) {
drawHLine(stencil, y, ugStroke);
return;
}
final Dimension2D dimTitle = title.calculateDimension(ug.getStringBounder());
drawHLine(firstHalf(stencil, dimTitle.getWidth()), y, ugStroke);
final double startingX = stencil.getStartingX(ug.getStringBounder(), y);
final double endingX = stencil.getEndingX(ug.getStringBounder(), y);
drawTitleInternal(ug, startingX, endingX, y, false);
drawHLine(secondHalf(stencil, dimTitle.getWidth()), y, ugStroke);
}
private Stencil addSkip(final Stencil stencil) {
return new Stencil() {
public double getStartingX(StringBounder stringBounder, double y) {
return stencil.getStartingX(stringBounder, y) + skipAtStart;
}
public double getEndingX(StringBounder stringBounder, double y) {
return stencil.getEndingX(stringBounder, y) - skipAtEnd;
}
};
}
private static Stencil firstHalf(final Stencil stencil, final double widthTitle) {
return new Stencil() {
public double getStartingX(StringBounder stringBounder, double y) {
return stencil.getStartingX(stringBounder, y);
}
public double getEndingX(StringBounder stringBounder, double y) {
final double start = stencil.getStartingX(stringBounder, y);
final double end = stencil.getEndingX(stringBounder, y);
final double len = (end - start - widthTitle) / 2;
return start + len;
}
};
}
private static Stencil secondHalf(final Stencil stencil, final double widthTitle) {
return new Stencil() {
public double getStartingX(StringBounder stringBounder, double y) {
final double start = stencil.getStartingX(stringBounder, y);
final double end = stencil.getEndingX(stringBounder, y);
final double len = (end - start - widthTitle) / 2;
return end - len;
}
public double getEndingX(StringBounder stringBounder, double y) {
return stencil.getEndingX(stringBounder, y);
}
};
}
private void drawHLine(Stencil stencil, double y, final UGraphic ug) {
drawSimpleHline(ug, stencil, y);
if (style == '=') {
drawSimpleHline(ug, stencil, y + 2);
}
}
private static void drawSimpleHline(UGraphic ug, Stencil stencil, double y) {
final double startingX = stencil.getStartingX(ug.getStringBounder(), y);
final double endingX = stencil.getEndingX(ug.getStringBounder(), y);
ug.apply(new UTranslate(startingX, y)).draw(new ULine(endingX - startingX, 0));
}
// public void drawTitleInternalForFootprint(UGraphic ug, double x, double y) {
// if (title == null || blankTitle) {
// return;
// }
// final Dimension2D dimTitle = title.calculateDimension(ug.getStringBounder());
// final double y1 = y - dimTitle.getHeight() / 2 - 0.5;
// title.drawU(ug.apply(new UTranslate(skipAtStart, y1)));
// }
public void drawTitleInternal(UGraphic ug, double startingX, double endingX, double y, boolean clearArea) {
if (title == null || blankTitle) {
return;
}
final double widthToUse = endingX - startingX;
final Dimension2D dimTitle = title.calculateDimension(ug.getStringBounder());
final double space = (widthToUse - dimTitle.getWidth()) / 2;
final double x1 = startingX + space;
final double y1 = y - dimTitle.getHeight() / 2 - 0.5;
ug = ug.apply(new UTranslate(x1, y1));
if (clearArea) {
ug.apply(getStroke()).draw(new URectangle(dimTitle));
}
title.drawU(ug);
}
public void drawMe(UGraphic ug) {
ug.draw(this);
}
public UStroke getStroke() {
if (style == '\0') {
throw new IllegalStateException();
// return null;
} else if (style == '=') {
return new UStroke();
} else if (style == '.') {
return new UStroke(1, 2, 1);
} else if (style == '-') {
return new UStroke();
} else {
return new UStroke(1.5);
}
}
}
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