Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.charts / src / org / simantics / charts / ui / LinkTimeHandler.java

diff --git a/bundles/org.simantics.charts/src/org/simantics/charts/ui/LinkTimeHandler.java b/bundles/org.simantics.charts/src/org/simantics/charts/ui/LinkTimeHandler.java
new file mode 100644 (file)
index 0000000..ce08edd
--- /dev/null
+++ b/bundles/org.simantics.charts/src/org/simantics/charts/ui/LinkTimeHandler.java
@@ -0,0 +1,92 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
+ * 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.charts.ui;\r
+\r
+import java.util.Map;\r
+\r
+import org.eclipse.core.commands.AbstractHandler;\r
+import org.eclipse.core.commands.Command;\r
+import org.eclipse.core.commands.ExecutionEvent;\r
+import org.eclipse.core.commands.ExecutionException;\r
+import org.eclipse.core.commands.IHandler;\r
+import org.eclipse.core.commands.State;\r
+import org.eclipse.ui.IEditorPart;\r
+import org.eclipse.ui.IEditorReference;\r
+import org.eclipse.ui.IWorkbenchPage;\r
+import org.eclipse.ui.IWorkbenchPart;\r
+import org.eclipse.ui.IWorkbenchWindow;\r
+import org.eclipse.ui.PlatformUI;\r
+import org.eclipse.ui.commands.ICommandService;\r
+import org.eclipse.ui.commands.IElementUpdater;\r
+import org.eclipse.ui.handlers.HandlerUtil;\r
+import org.eclipse.ui.menus.UIElement;\r
+import org.simantics.charts.editor.TimeSeriesEditor;\r
+\r
+public class LinkTimeHandler extends AbstractHandler implements IHandler, IElementUpdater {\r
+\r
+    public static final String COMMAND_ID = "org.simantics.charts.linktime";\r
+    public static final String STATE_ID = "org.simantics.charts.linktime.state";\r
+\r
+    @Override\r
+    public Object execute(ExecutionEvent event) throws ExecutionException {\r
+        ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);\r
+        Command command = service.getCommand( COMMAND_ID );\r
+        State state = command.getState( STATE_ID );\r
+        if (state != null) {\r
+            ChartLinkData oldData = (ChartLinkData) state.getValue();\r
+            if (oldData == null) {\r
+                TimeSeriesEditor editor = getEditor( event );\r
+                ChartLinkData currentData = new ChartLinkData();\r
+                if (editor != null) {\r
+                    editor.getFromEnd(currentData);\r
+                }\r
+                state.setValue( currentData );\r
+            } else {\r
+                state.setValue(null);\r
+            }\r
+        }\r
+\r
+        service.refreshElements(COMMAND_ID, null);\r
+        return null;\r
+    }\r
+\r
+    /**\r
+     * Get active editor or first one\r
+     * @return\r
+     */\r
+    TimeSeriesEditor getEditor(ExecutionEvent event) {\r
+        IWorkbenchPart ap = HandlerUtil.getActivePart(event);\r
+        if ( ap instanceof TimeSeriesEditor ) return (TimeSeriesEditor) ap;\r
+\r
+        IWorkbenchWindow win = HandlerUtil.getActiveWorkbenchWindow(event);\r
+        if (win==null) return null;\r
+        for (IWorkbenchPage page : win.getPages()) {\r
+            for (IEditorReference ref : page.getEditorReferences()) {\r
+                if (ref.getId().equals(TimeSeriesEditor.ID)) {\r
+                    IEditorPart part = ref.getEditor(false);\r
+                    return (TimeSeriesEditor) part;\r
+                }\r
+            }\r
+        }\r
+\r
+        return null;\r
+    }\r
+\r
+    @Override\r
+    public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) {\r
+        ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);\r
+        Command command = service.getCommand( COMMAND_ID );\r
+        State state = command.getState( STATE_ID );\r
+        element.setChecked( state != null && state.getValue()!=null );\r
+    }\r
+\r
+}\r