Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / elementclass / connection / EdgeTransforms.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/connection/EdgeTransforms.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/connection/EdgeTransforms.java
new file mode 100644 (file)
index 0000000..74e9bad
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/connection/EdgeTransforms.java
@@ -0,0 +1,139 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.g2d.elementclass.connection;\r
+\r
+import java.awt.geom.AffineTransform;\r
+import java.awt.geom.Path2D;\r
+import java.awt.geom.Point2D;\r
+import java.awt.geom.Rectangle2D;\r
+\r
+import org.simantics.g2d.element.IElement;\r
+import org.simantics.g2d.element.handler.InternalSize;\r
+import org.simantics.g2d.element.handler.BendsHandler;\r
+import org.simantics.g2d.element.handler.Move;\r
+import org.simantics.g2d.element.handler.Resize;\r
+import org.simantics.g2d.element.handler.Scale;\r
+import org.simantics.g2d.element.handler.Transform;\r
+\r
+/**\r
+ * Implements Bounds, Scale, Move and Transform for edges.\r
+ * \r
+ * @See {@link InternalSize}\r
+ * @See {@link Scale}\r
+ * @See {@link Move}\r
+ * @See {@link Transform}\r
+ * @author Toni Kalajainen\r
+ */\r
+public class EdgeTransforms implements InternalSize, Resize, Scale, Move, Transform {\r
+\r
+       private static final long serialVersionUID = -1675978959634691347L;\r
+       public static final EdgeTransforms INSTANCE = new EdgeTransforms(); \r
+\r
+       @Override\r
+       public Rectangle2D getBounds(IElement e, Rectangle2D size) {\r
+               if (size==null) size = new Rectangle2D.Double();\r
+               BendsHandler bends = e.getElementClass().getSingleItem(BendsHandler.class);\r
+               Path2D path = bends.getPath(e);\r
+               size.setFrame(path.getBounds2D());\r
+               return size;\r
+       }\r
+\r
+       @Override\r
+       public void resize(IElement e, Rectangle2D newSize) {\r
+               BendsHandler    bends   = e.getElementClass().getSingleItem(BendsHandler.class);\r
+               Path2D          path    = bends.getPath(e);\r
+               Rectangle2D     oldSize = path.getBounds2D();\r
+               double          sx              = newSize.getWidth() / oldSize.getWidth();\r
+               double          sy              = newSize.getHeight() / oldSize.getHeight();\r
+               double          tx              = newSize.getMinX() + oldSize.getMinX();\r
+               double          ty              = newSize.getMinY() + oldSize.getMinY();\r
+               AffineTransform at      = new AffineTransform();\r
+               at.translate(tx, ty);\r
+               at.scale(sx, sy);               \r
+               Path2D          newPath = new Path2D.Double(path, at);\r
+               bends.setPath(e, newPath);\r
+       }\r
+       \r
+       @Override\r
+       public Double getFixedAspectRatio(IElement e) {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public Rectangle2D getMaximumSize(IElement e) {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public Rectangle2D getMinimumSize(IElement e) {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public Point2D getMaximumScale(IElement e) {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public Point2D getMinimumScale(IElement e) {\r
+               return null;\r
+       }\r
+\r
+       private final static Point2D SCALE = new Point2D.Double(1.0, 1.0);\r
+       private final static Point2D POSITION = new Point2D.Double(0.0, 0.0);\r
+       private final static AffineTransform TRANSLATE = new AffineTransform();\r
+       @Override\r
+       public Point2D getScale(IElement e) {\r
+               return SCALE;\r
+       }\r
+\r
+       @Override\r
+       public Point2D getPosition(IElement e) {\r
+               return POSITION;\r
+       }\r
+\r
+       @Override\r
+       public AffineTransform getTransform(IElement e) {\r
+               return TRANSLATE;\r
+       }\r
+       \r
+       @Override\r
+       public void moveTo(IElement e, double x, double y) {\r
+               BendsHandler    bends   = e.getElementClass().getSingleItem(BendsHandler.class);\r
+               Path2D          path    = bends.getPath(e);\r
+               AffineTransform at      = new AffineTransform();\r
+               at.translate(x, y);\r
+               Path2D          newPath = new Path2D.Double(path, at);\r
+               bends.setPath(e, newPath);\r
+       }\r
+\r
+       @Override\r
+       public void setScale(IElement e, Point2D newScale) {\r
+               BendsHandler    bends   = e.getElementClass().getSingleItem(BendsHandler.class);\r
+               Path2D          path    = bends.getPath(e);\r
+               AffineTransform at      = new AffineTransform();\r
+               at.scale(newScale.getX(), newScale.getY());             \r
+               Path2D          newPath = new Path2D.Double(path, at);\r
+               bends.setPath(e, newPath);\r
+\r
+       }\r
+\r
+       @Override\r
+       public void setTransform(IElement e, AffineTransform at) {\r
+               BendsHandler    bends   = e.getElementClass().getSingleItem(BendsHandler.class);\r
+               Path2D          path    = bends.getPath(e);\r
+               Path2D          newPath = new Path2D.Double(path, at);\r
+               bends.setPath(e, newPath);\r
+       }\r
+       \r
+\r
+}\r