Merge pull request #991 from gwilherm/ascii-ref

Fix #990: ascii reference implementation

src/net/sourceforge/plantuml/asciiart/ComponentTextReference.java

@@ -0,0 +1,103 @@
+/* ========================================================================
+ * PlantUML : a free UML diagram generator
+ * ========================================================================
+ *
+ * (C) Copyright 2009-2023, 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.asciiart;
+
+import net.sourceforge.plantuml.awt.geom.Dimension2D;
+
+import net.sourceforge.plantuml.FileFormat;
+import net.sourceforge.plantuml.StringUtils;
+import net.sourceforge.plantuml.cucadiagram.Display;
+import net.sourceforge.plantuml.graphic.StringBounder;
+import net.sourceforge.plantuml.skin.Area;
+import net.sourceforge.plantuml.skin.Context2D;
+import net.sourceforge.plantuml.ugraphic.UGraphic;
+import net.sourceforge.plantuml.ugraphic.txt.UGraphicTxt;
+
+public class ComponentTextReference extends AbstractComponentText {
+
+	private final Display stringsToDisplay;
+	private final FileFormat fileFormat;
+
+	public ComponentTextReference(Display stringsToDisplay, FileFormat fileFormat) {
+		this.stringsToDisplay = stringsToDisplay;
+		this.fileFormat = fileFormat;
+	}
+
+	public void drawU(UGraphic ug, Area area, Context2D context) {
+		final Dimension2D dimensionToUse = area.getDimensionToUse();
+		final UmlCharArea charArea = ((UGraphicTxt) ug).getCharArea();
+		final int width = (int) dimensionToUse.getWidth();
+		final int height = (int) dimensionToUse.getHeight();
+
+		final String header = "REF";
+
+		if (fileFormat == FileFormat.UTXT) {
+			charArea.drawHLine('\u2550', 0, 1, width - 1, '\u2502', '\u256a');
+			charArea.drawStringLR(header + "  /", 2, 1);
+			charArea.drawHLine('\u2500', 2, 1, header.length() + 4);
+			charArea.drawVLine('\u2551', 0, 1, height - 1);
+			charArea.drawVLine('\u2551', width - 1, 1, height - 1);
+			charArea.drawChar('\u255f', 0, 2);
+			charArea.drawStringTB("\u2564\u2502\u2518", header.length() + 4, 0);
+			charArea.drawChar('\u2554', 0, 0);
+			charArea.drawChar('\u2557', width - 1, 0);
+			charArea.drawHLine('\u2550', height - 1, 1, width - 1, '\u2502', '\u256a');
+			charArea.drawChar('\u255a', 0, height - 1);
+			charArea.drawChar('\u255d', width - 1, height - 1);
+		} else {
+			charArea.drawHLine('_', 0, 0, width - 1);
+			charArea.drawStringLR(header + "  /", 2, 1);
+			charArea.drawHLine('_', 2, 1, header.length() + 3);
+			charArea.drawChar('/', header.length() + 3, 2);
+			charArea.drawVLine('!', 0, 1, height);
+			charArea.drawVLine('!', width - 1, 1, height);
+			charArea.drawHLine('~', height - 1, 1, width - 1);
+		}
+		
+		final Display text = stringsToDisplay.subList(1,stringsToDisplay.size());
+
+		charArea.drawStringsLRUnicode(text.asList(), 2, 3);
+	}
+
+	public double getPreferredHeight(StringBounder stringBounder) {
+		return StringUtils.getHeight(stringsToDisplay) + 3;
+	}
+
+	public double getPreferredWidth(StringBounder stringBounder) {
+		return StringUtils.getWcWidth(stringsToDisplay) + 4;
+	}
+
+}

src/net/sourceforge/plantuml/asciiart/TextSkin.java

@@ -35,7 +35,6 @@
  */
 package net.sourceforge.plantuml.asciiart;
 
-import net.sourceforge.plantuml.ColorParam;
 import net.sourceforge.plantuml.FileFormat;
 import net.sourceforge.plantuml.ISkinParam;
 import net.sourceforge.plantuml.cucadiagram.Display;
@@ -46,7 +45,6 @@ import net.sourceforge.plantuml.skin.ArrowDirection;
 import net.sourceforge.plantuml.skin.Component;
 import net.sourceforge.plantuml.skin.ComponentType;
 import net.sourceforge.plantuml.skin.rose.ComponentRoseGroupingSpace;
-import net.sourceforge.plantuml.skin.rose.ComponentRoseNewpage;
 import net.sourceforge.plantuml.skin.rose.Rose;
 import net.sourceforge.plantuml.style.Style;
 
@@ -151,6 +149,9 @@ public class TextSkin extends Rose {
 		if (type == ComponentType.DESTROY) {
 			return new ComponentTextDestroy();
 		}
+		if (type == ComponentType.REFERENCE) {
+			return new ComponentTextReference(stringsToDisplay, fileFormat);
+		}
 		throw new UnsupportedOperationException(type.toString());
 	}