Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scenegraph / src / org / simantics / scenegraph / g2d / nodes / BoxSelectionNode.java

diff --git a/bundles/org.simantics.scenegraph/src/org/simantics/scenegraph/g2d/nodes/BoxSelectionNode.java b/bundles/org.simantics.scenegraph/src/org/simantics/scenegraph/g2d/nodes/BoxSelectionNode.java
new file mode 100644 (file)
index 0000000..3bd1943
--- /dev/null
+++ b/bundles/org.simantics.scenegraph/src/org/simantics/scenegraph/g2d/nodes/BoxSelectionNode.java
@@ -0,0 +1,159 @@
+/*******************************************************************************\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.scenegraph.g2d.nodes;
+\r
+import java.awt.BasicStroke;\r
+import java.awt.Color;\r
+import java.awt.Graphics2D;\r
+import java.awt.Stroke;\r
+import java.awt.geom.Point2D;\r
+import java.awt.geom.Rectangle2D;\r
+\r
+import org.simantics.scenegraph.g2d.G2DNode;\r
+import org.simantics.scenegraph.g2d.events.EventTypes;\r
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonReleasedEvent;\r
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseMovedEvent;\r
+import org.simantics.scenegraph.utils.GeometryUtils;\r
+import org.simantics.scenegraph.utils.NodeUtil;\r
+
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class BoxSelectionNode extends G2DNode {
+
+    private static final long serialVersionUID = 8508750881358776559L;
+
+    protected Stroke            stroke           = new BasicStroke(2);\r
+    protected Color             color            = Color.BLACK;\r
+    protected boolean           scaleStroke      = false;\r
+    protected int               mouseButton      = 0;\r
+
+    protected Point2D           start            = new Point2D.Double(0, 0);\r
+    protected Point2D           end              = new Point2D.Double(0, 0);\r
+\r
+    protected SelectionListener listener         = null;\r
+\r
+    public static interface SelectionListener {
+        public void onSelect(Rectangle2D rect, int modifiers);
+    }
+\r
+    @Override\r
+    public void init() {\r
+        super.init();\r
+        addEventHandler(this);\r
+    }\r
+\r
+    @Override\r
+    public void cleanup() {\r
+        removeEventHandler(this);\r
+        super.cleanup();\r
+    }\r
+
+    @SyncField("stroke")
+    public void setStroke(Stroke stroke) {
+        this.stroke = stroke;
+    }
+
+    @SyncField("color")
+    public void setColor(Color color) {
+        this.color = color;
+    }
+
+    @SyncField("scaleStroke")
+    public void setScaleStroke(boolean scaleStroke) {
+        this.scaleStroke = scaleStroke;
+    }
+
+    @SyncField("start")
+    public void setStart(Point2D start) {
+        this.start = start;
+    }
+
+    @SyncField("end")
+    public void setEnd(Point2D end) {
+        this.end = end;
+    }
+\r
+    @SyncField("mouseButton")
+    public void setMouseButton(int mouseButton) {\r
+        this.mouseButton = mouseButton;\r
+    }\r
+\r
+    @Override
+    public void render(Graphics2D g2d) {
+        Rectangle2D bounds = getBoundsInLocal();\r
+        if (bounds == null || bounds.isEmpty())\r
+            return;\r
+\r
+        if (color != null)\r
+            g2d.setColor(color);\r
+        if (stroke != null) {\r
+            if (scaleStroke && stroke instanceof BasicStroke) {\r
+                BasicStroke bs = GeometryUtils.scaleStroke(stroke, (float) (1.0 / GeometryUtils.getScale(g2d.getTransform())));
+                g2d.setStroke(bs);
+            } else {
+                g2d.setStroke(stroke);
+            }
+        }
+\r
+        g2d.draw(bounds);
+    }
+
+    public void setSelectionListener(SelectionListener listener) {
+        this.listener = listener;
+    }
+
+    @ServerSide
+    private void onSelect(Rectangle2D selection, int modifiers) {
+        if (listener != null)\r
+            listener.onSelect(selection, modifiers);\r
+    }
+
+    @Override
+    public Rectangle2D getBoundsInLocal() {\r
+        // Empty bounds indicate no rendering.\r
+        if (start == null || end == null)\r
+            return new Rectangle2D.Double();\r
+
+        Rectangle2D rect = new Rectangle2D.Double(Math.min(start.getX(), end.getX()),
+                Math.min(start.getY(), end.getY()),
+                Math.max(start.getX(), end.getX())-Math.min(start.getX(), end.getX()),
+                Math.max(start.getY(), end.getY())-Math.min(start.getY(), end.getY()));\r
+        return rect;
+    }\r
+\r
+    @Override\r
+    public int getEventMask() {\r
+        return EventTypes.MouseButtonReleasedMask | EventTypes.MouseDragBeginMask\r
+                | EventTypes.MouseMovedMask;\r
+    }\r
+\r
+    @Override\r
+    protected boolean mouseButtonReleased(MouseButtonReleasedEvent e) {\r
+        if (e.button == mouseButton) {\r
+            onSelect(getBoundsInLocal(), e.stateMask);\r
+            start = null;\r
+            end = null;\r
+        }\r
+        return false;\r
+    }\r
+\r
+    @Override\r
+    protected boolean mouseMoved(MouseMovedEvent e) {\r
+        if (end != null) {\r
+            NodeUtil.worldToLocal(this, e.controlPosition, end);\r
+            repaint();\r
+        }\r
+        return false;\r
+    }\r
+\r
+}