package org.autoplot.dom; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.text.ParseException; import java.util.Arrays; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import org.das2.graph.DasCanvas; import org.das2.graph.DasDevicePosition; import org.das2.graph.DasRow; import org.das2.util.LoggerManager; /** * Controller for Row objects, mostly keeping the DasRow in sync with the DOM. * @author jbf */ public class RowController extends DomNodeController { protected static final Logger logger= org.das2.util.LoggerManager.getLogger( "autoplot.dom.row" ); Row row; DasRow dasRow; Canvas canvas; RowController( Row row ) { super(row); this.row= row; row.controller= this; } PropertyChangeListener dasRowPosListener; PropertyChangeListener createDasRowPosListener( final List minList, final List maxList ) { dasRowPosListener= new PropertyChangeListener( ) { @Override public void propertyChange(PropertyChangeEvent evt) { LoggerManager.logPropertyChangeEvent(evt); if ( maxList.contains( evt.getPropertyName() ) ) { row.setBottom( DasDevicePosition.formatLayoutStr(dasRow, false ) ); } else if ( minList.contains( evt.getPropertyName() ) ) { row.setTop( DasDevicePosition.formatLayoutStr(dasRow, true) ); } } }; return dasRowPosListener; } PropertyChangeListener rowPosListener; PropertyChangeListener createRowPosListener( ) { rowPosListener= new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { LoggerManager.logPropertyChangeEvent(evt); try { double[] dd= DasDevicePosition.parseLayoutStr((String)evt.getNewValue()); if ( evt.getPropertyName().equals(Row.PROP_TOP) ) { if ( dd[0]==dasRow.getMinimum() && dd[1]==dasRow.getEmMinimum() && ((int)dd[2])==dasRow.getPtMinimum() ) { logger.fine("suppressing change which would have no effect"); } else { dasRow.setMin( dd[0], dd[1], (int) dd[2] ); } } else if ( evt.getPropertyName().equals(Row.PROP_BOTTOM) ) { if ( dd[0]==dasRow.getMaximum() && dd[1]==dasRow.getEmMaximum() && ((int)dd[2])==dasRow.getPtMinimum() ) { logger.fine("suppressing change which would have no effect"); } else { dasRow.setMax( dd[0], dd[1], (int) dd[2] ); } } //DasDevicePosition.parseLayoutStr( dasRow, row.getTop() + "," + row.getBottom() ); } catch (ParseException ex) { logger.log(Level.WARNING, "parse exception: {0}", ex); row.setTop( DasDevicePosition.formatLayoutStr(dasRow, true) ); row.setBottom( DasDevicePosition.formatLayoutStr(dasRow, false ) ); } } }; return rowPosListener; } protected void createDasPeer( Canvas canvas, DasRow parent ) { DasCanvas c= canvas.controller.getDasCanvas(); dasRow= DasRow.create( c, parent, row.getTop(), row.getBottom() ); final List minList= Arrays.asList( DasDevicePosition.PROP_MINIMUM, DasDevicePosition.PROP_EMMINIMUM, DasDevicePosition.PROP_PTMINIMUM ); final List maxList= Arrays.asList( DasDevicePosition.PROP_MAXIMUM, DasDevicePosition.PROP_EMMAXIMUM, DasDevicePosition.PROP_PTMAXIMUM ); dasRowPosListener= createDasRowPosListener( minList, maxList); dasRow.addPropertyChangeListener(dasRowPosListener); rowPosListener= createRowPosListener(); row.addPropertyChangeListener(Row.PROP_BOTTOM,rowPosListener); row.addPropertyChangeListener(Row.PROP_TOP,rowPosListener); this.canvas= canvas; } /** * returns true if the spec is the same. * @param spec spec like "30%+1em,60%-4em" * @return true if they are equal. * @throws ParseException */ public boolean isLayoutEqual( String spec ) throws ParseException { String[] ss= spec.split(","); String s1= DasDevicePosition.formatFormatStr( DasDevicePosition.parseLayoutStr(ss[0]) ); if ( !this.row.top.equals(s1) ) return false; s1= DasDevicePosition.formatFormatStr( DasDevicePosition.parseLayoutStr(ss[1]) ); if ( !this.row.bottom.equals(s1) ) return false; return true; } public void removeBindings() { dasRow.removePropertyChangeListener(dasRowPosListener); row.removePropertyChangeListener(Column.PROP_LEFT,rowPosListener); row.removePropertyChangeListener(Column.PROP_RIGHT,rowPosListener); } public void removeReferences() { //row= null; //dasRow= null; //canvas= null; } public DasRow getDasRow() { return dasRow; } public Canvas getCanvas() { return canvas; } }