40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
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package com.minres.scviewer.e4.application.handlers;
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import javax.inject.Named;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.workbench.modeling.EPartService;
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import com.minres.scviewer.e4.application.parts.WaveformViewerPart;
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public class ZoomHandler {
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final static String PARAMTER_ID="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level";
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@CanExecute
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public boolean canExecute(EPartService partService) {
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return true;
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}
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@Execute
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public void execute(@Named(PARAMTER_ID) String level, EPartService partService) {
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MPart part = partService.getActivePart();
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Object obj = part.getObject();
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if(obj instanceof WaveformViewerPart){
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WaveformViewerPart waveformViewerPart = (WaveformViewerPart) obj;
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int zoomLevel = waveformViewerPart.getZoomLevel();
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if("in".equalsIgnoreCase(level))
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waveformViewerPart.setZoomLevel(zoomLevel-1);
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else if("out".equalsIgnoreCase(level))
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waveformViewerPart.setZoomLevel(zoomLevel+1);
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else if("fit".equalsIgnoreCase(level))
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waveformViewerPart.setZoomFit();
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}
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}
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} |