Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scenegraph.swing / src / org / simantics / scenegraph / example / SGCanvas.java

diff --git a/bundles/org.simantics.scenegraph.swing/src/org/simantics/scenegraph/example/SGCanvas.java b/bundles/org.simantics.scenegraph.swing/src/org/simantics/scenegraph/example/SGCanvas.java
new file mode 100644 (file)
index 0000000..f9bd6d2
--- /dev/null
+++ b/bundles/org.simantics.scenegraph.swing/src/org/simantics/scenegraph/example/SGCanvas.java
@@ -0,0 +1,184 @@
+/*******************************************************************************\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.example;\r
+\r
+import java.awt.Graphics;\r
+import java.awt.Graphics2D;\r
+import java.awt.Rectangle;\r
+import java.awt.event.FocusEvent;\r
+import java.awt.event.FocusListener;\r
+import java.awt.event.KeyEvent;\r
+import java.awt.event.KeyListener;\r
+import java.awt.event.MouseEvent;\r
+import java.awt.event.MouseListener;\r
+import java.awt.event.MouseMotionListener;\r
+import java.awt.event.MouseWheelEvent;\r
+import java.awt.event.MouseWheelListener;\r
+import java.awt.image.VolatileImage;\r
+\r
+import javax.swing.JComponent;\r
+\r
+import org.simantics.scenegraph.g2d.G2DFocusManager;\r
+import org.simantics.scenegraph.g2d.G2DSceneGraph;\r
+\r
+public class SGCanvas extends JComponent implements MouseListener, MouseMotionListener, MouseWheelListener, KeyListener, FocusListener {\r
+       /**\r
+        * \r
+        */\r
+       private static final long serialVersionUID = -7835590396125816119L;\r
+       \r
+       private G2DSceneGraph scenegraph = null;\r
+    private VolatileImage buffer = null;\r
+    \r
+       public SGCanvas() {\r
+               setFocusable(true);     \r
+       }\r
+       \r
+       public void initListeners() {\r
+        addKeyListener(this);\r
+        addMouseWheelListener(this);\r
+        addMouseListener(this);\r
+        addMouseMotionListener(this);\r
+        addFocusListener(this);\r
+       }\r
+       \r
+       @Override\r
+    public void paintComponent(Graphics g) {\r
+        if (scenegraph == null) return;        \r
+        Graphics2D     g2d             = (Graphics2D) g;\r
+        Rectangle      b               = getBounds();\r
+\r
+        int newWidth = b.width;\r
+        int newHeight = b.height;\r
+\r
+        if (buffer == null) {\r
+            buffer = createVolatileImage(newWidth, newHeight);\r
+        } else {\r
+            int w = buffer.getWidth();\r
+            int h = buffer.getHeight();\r
+            if (w != newWidth || h != newHeight) {\r
+                buffer = createVolatileImage(newWidth, newHeight);\r
+            } else {\r
+                int valid = buffer.validate(g2d.getDeviceConfiguration());\r
+                if (valid == VolatileImage.IMAGE_INCOMPATIBLE) {\r
+                    buffer = createVolatileImage(newWidth, newHeight);\r
+                }\r
+            }\r
+        }\r
+\r
+        Graphics2D bg = (Graphics2D) buffer.getGraphics();\r
+\r
+        bg.setClip((int)b.getMinX(), (int)b.getMinY(), (int)b.getWidth(), (int)b.getHeight());\r
+        scenegraph.render(bg);\r
+        g2d.drawImage(buffer, 0, 0, null);\r
+    }\r
+       \r
+       public void setSceneGraph(G2DSceneGraph scenegraph) {\r
+               this.scenegraph = scenegraph;\r
+               scenegraph.setRootPane(this);\r
+       }\r
+       \r
+       public G2DSceneGraph getSceneGraph() {\r
+               return scenegraph;\r
+       }\r
+\r
+       @Override\r
+       public void mouseWheelMoved(MouseWheelEvent event) {\r
+               if(scenegraph != null) {\r
+                       scenegraph.getEventDelegator().mouseWheelMoved(event);\r
+                       repaint();\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void keyPressed(KeyEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().keyPressed(event);\r
+       }\r
+\r
+       @Override\r
+       public void keyReleased(KeyEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().keyReleased(event);\r
+       }\r
+\r
+       @Override\r
+       public void keyTyped(KeyEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().keyTyped(event);\r
+       }\r
+\r
+       @Override\r
+       public void focusGained(FocusEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().focusGained(event);\r
+       }\r
+\r
+       @Override\r
+       public void focusLost(FocusEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().focusLost(event);\r
+       }\r
+\r
+       @Override\r
+       public void mouseClicked(MouseEvent event) {\r
+               if(scenegraph != null) {\r
+                       scenegraph.getEventDelegator().mouseClicked(event);\r
+                       repaint();\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void mouseEntered(MouseEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().mouseEntered(event);\r
+       }\r
+\r
+       @Override\r
+       public void mouseExited(MouseEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().mouseExited(event);\r
+       }\r
+\r
+       @Override\r
+       public void mousePressed(MouseEvent event) {\r
+               if(scenegraph != null) {\r
+                       G2DFocusManager.INSTANCE.clearFocus();\r
+                       scenegraph.getEventDelegator().mousePressed(event);\r
+                       if(G2DFocusManager.INSTANCE.getFocusOwner() == null) {\r
+                               this.requestFocusInWindow();\r
+                       }\r
+                       repaint();\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void mouseReleased(MouseEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().mouseReleased(event);\r
+       }\r
+\r
+       @Override\r
+       public void mouseDragged(MouseEvent event) {\r
+               if(scenegraph != null) {\r
+                       scenegraph.getEventDelegator().mouseDragged(event);\r
+                       repaint();\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void mouseMoved(MouseEvent event) {\r
+               if(scenegraph != null)\r
+                       scenegraph.getEventDelegator().mouseMoved(event);\r
+       }\r
+\r
+}\r