SCViewer/com.minres.scviewer.e4.appl.../src/com/minres/scviewer/e4/application/handlers/NavigateEvent.java

55 lines
2.1 KiB
Java

/*******************************************************************************
* Copyright (c) 2015 MINRES Technologies GmbH and others.
* 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:
* MINRES Technologies GmbH - initial API and implementation
*******************************************************************************/
package com.minres.scviewer.e4.application.handlers;
import javax.inject.Named;
import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.workbench.modeling.EPartService;
import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
import org.eclipse.jface.viewers.IStructuredSelection;
import com.minres.scviewer.database.ITx;
import com.minres.scviewer.database.IWaveform;
import com.minres.scviewer.database.ui.GotoDirection;
import com.minres.scviewer.e4.application.parts.WaveformViewer;
public class NavigateEvent {
final static String PARAMTER_ID="com.minres.scviewer.e4.application.command.navigateEventCommand.parameter.dir"; //$NON-NLS-1$
@CanExecute
public Boolean canExecute(ESelectionService selectionService){
Object sel = selectionService.getSelection();
if( sel instanceof IStructuredSelection) {
Object o= ((IStructuredSelection)sel).getFirstElement();
return o instanceof IWaveform || o instanceof ITx;
}
return false;
}
@Execute
public void execute(@Named(PARAMTER_ID) String param, EPartService partService) {
// public void execute(EPartService partService) {
// String param="next";
MPart part = partService.getActivePart();
Object obj = part.getObject();
if(obj instanceof WaveformViewer){
if("next".equalsIgnoreCase(param)) //$NON-NLS-1$
((WaveformViewer)obj).moveCursor(GotoDirection.NEXT);
else if("prev".equalsIgnoreCase(param)) //$NON-NLS-1$
((WaveformViewer)obj).moveCursor(GotoDirection.PREV);
}
}
}