1 files changed, 25 insertions, 0 deletions
diff --git a/altosui/AltosGraph.java b/altosui/AltosGraph.java
new file mode 100644
index 00000000..58c27979
--- /dev/null
+++ b/altosui/AltosGraph.java
@@ -0,0 +1,25 @@
+
+// Copyright (c) 2010 Anthony Towns
+// GPL v2 or later
+
+package altosui;
+
+import java.io.*;
+
+import org.jfree.chart.JFreeChart;
+import org.jfree.chart.ChartUtilities;
+
+abstract class AltosGraph {
+    public String filename;
+    public abstract void addData(AltosDataPoint d);
+    public abstract JFreeChart createChart();
+    public void toPNG() throws java.io.IOException { toPNG(300, 500); }
+    public void toPNG(int width, int height)
+        throws java.io.IOException
+    {
+        File pngout = new File(filename);
+        JFreeChart chart = createChart();
+        ChartUtilities.saveChartAsPNG(pngout, chart, width, height);
+        System.out.println("Created " + filename);
+    }
+}