X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fparticipant%2Fe4%2FContextUtil.java;fp=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fparticipant%2Fe4%2FContextUtil.java;h=e5cb68010174ea4b63d82adaade00be485fec64e;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hp=f3724ff05080acceae8d4d5d5c9a8935623b0285;hpb=24e2b34260f219f0d1644ca7a138894980e25b14;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/participant/e4/ContextUtil.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/participant/e4/ContextUtil.java
index f3724ff05..e5cb68010 100644
--- a/bundles/org.simantics.diagram/src/org/simantics/diagram/participant/e4/ContextUtil.java
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/participant/e4/ContextUtil.java
@@ -1,197 +1,197 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2013 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.diagram.participant.e4;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Set;
-
-import org.eclipse.e4.ui.services.EContextService;
-import org.simantics.g2d.canvas.ICanvasContext;
-import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
-import org.simantics.utils.ObjectUtils;
-import org.simantics.utils.threads.IThreadWorkQueue;
-import org.simantics.utils.threads.ThreadUtils;
-
-/**
- * ContextUtil manages the activeness of Eclipse Workbench UI context related to
- * an ICanvasContext and an IContextService (possibly local to a workbench part).
- * 
- * @author Tuukka Lehtonen
- */
-public class ContextUtil extends AbstractCanvasParticipant {
-
-    private static final boolean                  DEBUG = false;
-
-    private final EContextService                 service;
-
-    private final IThreadWorkQueue                thread;
-
-    private final Set<String>                     activations = new HashSet<String>();
-
-    public ContextUtil(EContextService service, IThreadWorkQueue contextManipulationThread) {
-        assert service != null;
-        assert contextManipulationThread != null;
-        this.service = service;
-        this.thread = contextManipulationThread;
-    }
-
-    public void inContextThread(Runnable r) {
-        exec(r, true);
-    }
-
-    private void debug(String s) {
-        debug(false, s);
-    }
-
-    private void debug(boolean trace, String s) {
-        if (DEBUG) {
-            System.out.println(getClass().getSimpleName() + "(" + ObjectUtils.hashCode(getContext()) + "): " + s);
-            if (trace) {
-                StackTraceElement[] es = new Exception().getStackTrace();
-                int e = 0;
-                System.out.println("Invoked from: ");
-                for (int i = 0; i < 2 && e < es.length; ++e) {
-                    if (es[e].getClassName().equals(getClass().getName()))
-                        continue;
-                    System.out.println("\t" + es[e].toString());
-                    ++i;
-                }
-            }
-        }
-    }
-
-    private void checkThread() {
-        if (!thread.currentThreadAccess()) {
-            throw new IllegalStateException("not in context thread, use ContextUtil.inContextThread(Runnable)");
-        }
-    }
-
-    private void exec(Runnable r) {
-        exec(r, false);
-    }
-
-    private void exec(Runnable r, boolean allowSchedule) {
-        if (!allowSchedule)
-            checkThread();
-
-        // Context access thread is disposed already?
-        if (thread.getThread() == null)
-            return;
-
-        if (thread.currentThreadAccess()) {
-            if (DEBUG)
-                debug("RUNNING " + r);
-            r.run();
-        } else {
-            if (DEBUG)
-                debug("SCHEDULING " + r);
-            ThreadUtils.asyncExec(thread, r);
-        }
-    }
-
-    @Override
-    public void removedFromContext(ICanvasContext ctx) {
-        exec(new Runnable() {
-            @Override
-            public void run() {
-                deactivateAll();
-            }
-        }, true);
-        super.removedFromContext(ctx);
-    }
-
-    private void doActivate(String contextId) {
-        if(activations.add(contextId)) {
-            service.activateContext(contextId);
-            if (DEBUG)
-                debug("ACTIVATED context: " + contextId);
-        } else {
-            if (DEBUG)
-                debug("TRIED TO ACTIVATE DUPLICATE CONTEXT: " + contextId);
-        }
-    }
-
-    public void activate(final String contextId) {
-        checkThread();
-        if (DEBUG)
-            debug(true, "activate(" + contextId + ")");
-        assert contextId != null;
-        exec(new Runnable() {
-            @Override
-            public void run() {
-                doActivate(contextId);
-            }
-        });
-    }
-
-    public void activate(final Collection<String> contextIds) {
-        if (DEBUG)
-            debug(true, "activate contexts (" + contextIds + ")");
-        if (contextIds.isEmpty())
-            return;
-        exec(new Runnable() {
-            @Override
-            public void run() {
-                for (String id : contextIds) {
-                    doActivate(id);
-                }
-            }
-        });
-    }
-
-    public void deactivate(Collection<String> contextIds) {
-        checkThread();
-        assert contextIds != null;
-        for(String id : contextIds) {
-            boolean a = activations.remove(id);
-            if (DEBUG)
-                debug(true, "deactivate(" + id + "): " + a);
-            if (a)
-                exec(new Runnable() {
-                    @Override
-                    public void run() {
-                        if (DEBUG)
-                            debug("DE-ACT context: " + id);
-                        service.deactivateContext(id);
-                    }
-                });
-        }
-    }
-
-    public void deactivateAll() {
-        checkThread();
-        final Collection<String> contextIds = getActivatedContextIds();
-        if (DEBUG)
-            debug(true, "DE-ACTIVATE ALL INVOKED, " + contextIds.size() + " contexts to deactivate");
-        activations.clear();
-        exec(new Runnable() {
-            @Override
-            public void run() {
-                if (DEBUG)
-                    debug("\tDE-ACTIVATE ALL " + contextIds.size() + " contexts:");
-                for (String id : contextIds) {
-                    if (DEBUG)
-                        debug("\t\tDE-ACT context: " + id);
-                    service.deactivateContext(id);
-                }
-            }
-        });
-    }
-
-    public synchronized Collection<String> getActivatedContextIds() {
-        return Collections.unmodifiableCollection(new ArrayList<String>(activations));
-    }
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2013 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.diagram.participant.e4;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.eclipse.e4.ui.services.EContextService;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.utils.ObjectUtils;
+import org.simantics.utils.threads.IThreadWorkQueue;
+import org.simantics.utils.threads.ThreadUtils;
+
+/**
+ * ContextUtil manages the activeness of Eclipse Workbench UI context related to
+ * an ICanvasContext and an IContextService (possibly local to a workbench part).
+ * 
+ * @author Tuukka Lehtonen
+ */
+public class ContextUtil extends AbstractCanvasParticipant {
+
+    private static final boolean                  DEBUG = false;
+
+    private final EContextService                 service;
+
+    private final IThreadWorkQueue                thread;
+
+    private final Set<String>                     activations = new HashSet<String>();
+
+    public ContextUtil(EContextService service, IThreadWorkQueue contextManipulationThread) {
+        assert service != null;
+        assert contextManipulationThread != null;
+        this.service = service;
+        this.thread = contextManipulationThread;
+    }
+
+    public void inContextThread(Runnable r) {
+        exec(r, true);
+    }
+
+    private void debug(String s) {
+        debug(false, s);
+    }
+
+    private void debug(boolean trace, String s) {
+        if (DEBUG) {
+            System.out.println(getClass().getSimpleName() + "(" + ObjectUtils.hashCode(getContext()) + "): " + s);
+            if (trace) {
+                StackTraceElement[] es = new Exception().getStackTrace();
+                int e = 0;
+                System.out.println("Invoked from: ");
+                for (int i = 0; i < 2 && e < es.length; ++e) {
+                    if (es[e].getClassName().equals(getClass().getName()))
+                        continue;
+                    System.out.println("\t" + es[e].toString());
+                    ++i;
+                }
+            }
+        }
+    }
+
+    private void checkThread() {
+        if (!thread.currentThreadAccess()) {
+            throw new IllegalStateException("not in context thread, use ContextUtil.inContextThread(Runnable)");
+        }
+    }
+
+    private void exec(Runnable r) {
+        exec(r, false);
+    }
+
+    private void exec(Runnable r, boolean allowSchedule) {
+        if (!allowSchedule)
+            checkThread();
+
+        // Context access thread is disposed already?
+        if (thread.getThread() == null)
+            return;
+
+        if (thread.currentThreadAccess()) {
+            if (DEBUG)
+                debug("RUNNING " + r);
+            r.run();
+        } else {
+            if (DEBUG)
+                debug("SCHEDULING " + r);
+            ThreadUtils.asyncExec(thread, r);
+        }
+    }
+
+    @Override
+    public void removedFromContext(ICanvasContext ctx) {
+        exec(new Runnable() {
+            @Override
+            public void run() {
+                deactivateAll();
+            }
+        }, true);
+        super.removedFromContext(ctx);
+    }
+
+    private void doActivate(String contextId) {
+        if(activations.add(contextId)) {
+            service.activateContext(contextId);
+            if (DEBUG)
+                debug("ACTIVATED context: " + contextId);
+        } else {
+            if (DEBUG)
+                debug("TRIED TO ACTIVATE DUPLICATE CONTEXT: " + contextId);
+        }
+    }
+
+    public void activate(final String contextId) {
+        checkThread();
+        if (DEBUG)
+            debug(true, "activate(" + contextId + ")");
+        assert contextId != null;
+        exec(new Runnable() {
+            @Override
+            public void run() {
+                doActivate(contextId);
+            }
+        });
+    }
+
+    public void activate(final Collection<String> contextIds) {
+        if (DEBUG)
+            debug(true, "activate contexts (" + contextIds + ")");
+        if (contextIds.isEmpty())
+            return;
+        exec(new Runnable() {
+            @Override
+            public void run() {
+                for (String id : contextIds) {
+                    doActivate(id);
+                }
+            }
+        });
+    }
+
+    public void deactivate(Collection<String> contextIds) {
+        checkThread();
+        assert contextIds != null;
+        for(String id : contextIds) {
+            boolean a = activations.remove(id);
+            if (DEBUG)
+                debug(true, "deactivate(" + id + "): " + a);
+            if (a)
+                exec(new Runnable() {
+                    @Override
+                    public void run() {
+                        if (DEBUG)
+                            debug("DE-ACT context: " + id);
+                        service.deactivateContext(id);
+                    }
+                });
+        }
+    }
+
+    public void deactivateAll() {
+        checkThread();
+        final Collection<String> contextIds = getActivatedContextIds();
+        if (DEBUG)
+            debug(true, "DE-ACTIVATE ALL INVOKED, " + contextIds.size() + " contexts to deactivate");
+        activations.clear();
+        exec(new Runnable() {
+            @Override
+            public void run() {
+                if (DEBUG)
+                    debug("\tDE-ACTIVATE ALL " + contextIds.size() + " contexts:");
+                for (String id : contextIds) {
+                    if (DEBUG)
+                        debug("\t\tDE-ACT context: " + id);
+                    service.deactivateContext(id);
+                }
+            }
+        });
+    }
+
+    public synchronized Collection<String> getActivatedContextIds() {
+        return Collections.unmodifiableCollection(new ArrayList<String>(activations));
+    }
+
+}