u12

u12/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="lib" path="/home/stud/p8q-yhw-u1/Downloads/liblocline.jar"/>
+	<classpathentry kind="lib" path="/home/stud/p8q-yhw-u1/Downloads/DrawingPanel(1).jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

u12/.gitignore

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+/bin/

u12/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>u12</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

u12/.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=17

u12/src/de/hsh/prog/klassedashedline/DashedLine.java

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+package de.hsh.prog.klassedashedline;
+
+import java.awt.Graphics;
+import java.util.Arrays;
+
+/**
+ * Klasse zum speichern und Zeichnen einer gestrichelten Linie
+ * @author p8q-yhw-u1
+ *
+ */
+public class DashedLine extends Line {
+    
+    private int[] dashes;
+    
+    /**
+     * Erstellt ein DashedLine Objekt
+     * @param l1 Startpunkt der Linie
+     * @param l2 Endpunkt der Linie
+     * @param dashes Zeichenmuster, ein Integer Array von Pixel-Längen.
+     * Geradzahlige Indexe => Strich, Ungradzahlige Indexe => Lücke
+     */
+    public DashedLine(Loc l1, Loc l2, int[] dashes) {
+        super(l1, l2);
+        
+        if (dashes.length <= 0) {
+            throw new IllegalArgumentException("dashes muss mindestens ein Element enthalten");
+        }
+        
+        this.dashes = dashes;
+    }
+    
+    /**
+     * Zeichnet die gestrichelt Linie mit einem Graphics Objekt
+     */
+    @Override
+    public void draw(Graphics g) {
+        double x = this.getP1().getX();
+        double y = this.getP1().getY();
+
+        double totalLen = this.getP1().distance(this.getP2());
+        
+        double dx = this.getP2().getX() - x;
+        double dy = this.getP2().getY() - y;
+        
+        double currLen = 0;
+        int currDash = 0;
+        
+        while (currLen < totalLen) {
+            
+            double dashLen = dashes[currDash];
+            
+            if (dashLen + currLen > totalLen) {
+                dashLen = totalLen - currLen;
+            }
+            
+            double nextx = x + dx * dashLen / totalLen;
+            double nexty = y + dy * dashLen / totalLen;
+            
+            if (currDash % 2 == 0) {
+                new Line((int) x, (int) y, (int) nextx, (int) nexty).draw(g);
+            }
+            
+            x = nextx;
+            y = nexty;
+            
+            currLen += dashLen;
+            currDash = (currDash + 1) % this.dashes.length;
+        }
+    }
+    
+    /**
+     * Gibt die Linie in String-Form aus
+     */
+    @Override
+    public String toString() {
+        return "[" + super.toString() + ", dashes=" + Arrays.toString(dashes) + "]";
+    }
+    
+}