Initial Commit - Copy from Altus Metrum AltOS

altosuilib/AltosUILineStyle.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright © 2017 Keith Packard <keithp@keithp.com>
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is 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.
+ */
+
+package org.altusmetrum.altosuilib_14;
+
+import java.io.*;
+import java.util.ArrayList;
+
+import java.awt.*;
+import javax.swing.*;
+import org.altusmetrum.altoslib_14.*;
+
+import org.jfree.ui.*;
+import org.jfree.chart.*;
+import org.jfree.chart.plot.*;
+import org.jfree.chart.axis.*;
+import org.jfree.chart.renderer.*;
+import org.jfree.chart.renderer.xy.*;
+import org.jfree.chart.labels.*;
+import org.jfree.data.xy.*;
+import org.jfree.data.*;
+
+public class AltosUILineStyle {
+	public Color	color;
+	public float[]	dash;
+
+	static private Color color(int r, int g, int b) {
+		return new Color(r,g,b);
+	}
+
+	static final private Color[] colors = {
+		new Color(0,0,0),
+		new Color(230,0,0),	// red
+		new Color(216,103,0),	// orange
+		new Color(200,200,0),	// yellow
+		new Color(0,180,0),	// green
+		new Color(0,140,140),	// cyan
+		new Color(130,0,0),	// dark red
+		new Color(0,100,0),	// dark green
+		new Color(0,0,255),	// blue
+		new Color(140,0,140),	// magenta
+		new Color(150,150,150),	// gray
+	};
+
+	static final private float[][] dashes = {
+		{ 0 },
+		{ 2, 4 },
+		{ 4, 4 },
+		{ 6, 4 },
+		{ 6, 4, 2, 4 }
+	};
+
+	static int color_index, dash_index;
+
+	public AltosUILineStyle () {
+		color = colors[color_index];
+		dash = dashes[dash_index];
+		color_index = (color_index + 1) % colors.length;
+		if (color_index == 0) {
+			dash_index = (dash_index + 1) % dashes.length;
+			if (dash_index == 0)
+				System.out.printf("too many line styles\n");
+		}
+	}
+
+	public AltosUILineStyle(int index) {
+		index = index % (colors.length * dashes.length);
+		int c = index % colors.length;
+		int d = index / colors.length;
+		color = colors[c];
+		dash = dashes[d];
+	}
+}