merge trunk to common sl branch

git-svn-id: https://svn.apache.org/repos/asf/poi/branches/common_sl@1691843 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 68 insertions, 0 deletions

diff --git a/src/java/org/apache/poi/sl/draw/geom/ArcToCommand.java b/src/java/org/apache/poi/sl/draw/geom/ArcToCommand.java
new file mode 100644
index 0000000000..0382d7f997
--- /dev/null
+++ b/src/java/org/apache/poi/sl/draw/geom/ArcToCommand.java
@@ -0,0 +1,68 @@
+/*
+ *  ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one or more
+ *    contributor license agreements.  See the NOTICE file distributed with
+ *    this work for additional information regarding copyright ownership.
+ *    The ASF licenses this file to You under the Apache License, Version 2.0
+ *    (the "License"); you may not use this file except in compliance with
+ *    the License.  You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ * ====================================================================
+ */
+
+package org.apache.poi.sl.draw.geom;
+
+import org.apache.poi.sl.draw.binding.CTPath2DArcTo;
+
+import java.awt.geom.Arc2D;
+import java.awt.geom.GeneralPath;
+import java.awt.geom.Point2D;
+
+/**
+ * ArcTo command within a shape path in DrawingML:
+ *
+ * <arcTo wR="wr" hR="hr" stAng="stAng" swAng="swAng"/>
+ *
+ * Where <code>wr</code> and <code>wh</code> are the height and width radiuses
+ * of the supposed circle being used to draw the arc.  This gives the circle
+ * a total height of (2 * hR)  and a total width of (2 * wR)
+ *
+ * stAng is the <code>start</code> angle and <code></>swAng</code> is the swing angle
+ *
+ * @author Yegor Kozlov
+ */
+public class ArcToCommand implements PathCommand {
+    private String hr, wr, stAng, swAng;
+
+    ArcToCommand(CTPath2DArcTo arc){
+        hr = arc.getHR().toString();
+        wr = arc.getWR().toString();
+        stAng = arc.getStAng().toString();
+        swAng = arc.getSwAng().toString();
+    }
+
+    public void execute(GeneralPath path, Context ctx){
+        double rx = ctx.getValue(wr);
+        double ry = ctx.getValue(hr);
+        double start = ctx.getValue(stAng) / 60000;
+        double extent = ctx.getValue(swAng) / 60000;
+        Point2D pt = path.getCurrentPoint();
+        double x0 = pt.getX() - rx - rx * Math.cos(Math.toRadians(start));
+        double y0 = pt.getY() - ry - ry * Math.sin(Math.toRadians(start));
+
+        Arc2D arc = new Arc2D.Double(
+                         x0,
+                         y0,
+                         2 * rx, 2 * ry,
+                         -start, -extent, 
+                         Arc2D.OPEN);
+		path.append(arc, true);
+    }
+}