X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.graphviz.ui%2Fsrc%2Forg%2Fsimantics%2Fgraphviz%2Fui%2FGraphvizComponent2.java;fp=bundles%2Forg.simantics.graphviz.ui%2Fsrc%2Forg%2Fsimantics%2Fgraphviz%2Fui%2FGraphvizComponent2.java;h=3792f045691cb9a2a794640d52128732685c4ffc;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.graphviz.ui/src/org/simantics/graphviz/ui/GraphvizComponent2.java b/bundles/org.simantics.graphviz.ui/src/org/simantics/graphviz/ui/GraphvizComponent2.java
new file mode 100644
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--- /dev/null
+++ b/bundles/org.simantics.graphviz.ui/src/org/simantics/graphviz/ui/GraphvizComponent2.java
@@ -0,0 +1,148 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.graphviz.ui;
+
+import java.awt.Canvas;
+import java.awt.Frame;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import javax.swing.SwingUtilities;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.awt.SWT_AWT;
+import org.eclipse.swt.widgets.Composite;
+import org.simantics.graphviz.Graph;
+import org.simantics.graphviz.continuation.Computation;
+import org.simantics.graphviz.continuation.Continuation;
+import org.simantics.graphviz.drawable.GraphDrawable2;
+import org.simantics.graphviz.drawable.ViewerCanvas;
+
+public class GraphvizComponent2 extends Composite {
+
+    Canvas canvas;
+    GraphDrawable2 drawable;
+    Graph graph;
+    AtomicBoolean initialized = new AtomicBoolean(false);
+    Frame frame;
+
+    public GraphvizComponent2(Composite parent, int style) {
+        super(parent, style | SWT.EMBEDDED | SWT.NO_BACKGROUND);
+
+        frame = SWT_AWT.new_Frame(this);
+
+        SwingUtilities.invokeLater(new Runnable() {
+
+            @Override
+            public void run() {
+                try {
+                    drawable = new GraphDrawable2();
+                    canvas = new ViewerCanvas(drawable);
+                    frame.add(canvas);
+                } finally {
+                    synchronized (initialized) {
+                        initialized.set(true);
+                        initialized.notifyAll();
+                    }
+                }
+            }
+
+        });
+    }
+
+    public void waitUntilInitialized() {
+        try {
+            synchronized (initialized) {
+                while (!initialized.get())
+                    initialized.wait();
+            }
+        } catch (InterruptedException e) {
+            throw new Error("GraphvizComponent AWT population interrupted for class " + this, e);
+        }
+    }
+
+    /**
+     * Sets a new graph to be drawn. This operation may take a while. It can
+     * be called from any thread. Automatically redraws the component.
+     * @param graph
+     */
+    public Computation<Graph> setGraph(Graph graph) {
+        return setGraph(graph, "dot");
+    }
+
+    /**
+     * Sets a new graph to be drawn. This operation may take a while. It can
+     * be called from any thread. Automatically redraws the component.
+     * @param graph
+     */
+    public Computation<Graph> setGraph(Graph graph, String algorithm) {
+        Computation<Graph> computation = drawable.setGraph(graph, algorithm);
+        computation.addContinuation(new Continuation<Graph>() {
+            
+            @Override
+            public void succeeded(Graph result) {
+                if (isDisposed())
+                    return;
+                
+                fit();
+            }
+            
+            @Override
+            public void failed(Exception exception) {
+            }
+        });
+        return computation;
+    }
+
+    /**
+     * Fits the content of the canvas to the component.
+     * Can be called from any thread.
+     */
+    public void fit() {
+        ((ViewerCanvas)canvas).fit();
+        getDisplay().asyncExec(new Runnable() {
+
+            @Override
+            public void run() {
+                redraw();
+            }
+
+        });
+        SwingUtilities.invokeLater(new Runnable() {
+
+            @Override
+            public void run() {
+                canvas.repaint();
+            }
+
+        });
+
+
+    }
+
+    public void requestFocus() {
+        if(canvas != null)
+            canvas.requestFocus();
+    }
+    
+    public Frame getFrame() {
+    	return frame;
+    }
+    
+    public Canvas getCanvas() {
+    	return canvas;
+    }
+    
+    public GraphDrawable2 getDrawable() {
+    	return drawable;
+    }
+
+}