/**
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.guvnor.client.modeldriven.ui;
/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import org.drools.guvnor.client.common.ClickableLabel;
import org.drools.guvnor.client.common.DirtyableFlexTable;
import org.drools.guvnor.client.common.DirtyableVerticalPane;
import org.drools.guvnor.client.common.FormStylePopup;
import org.drools.guvnor.client.modeldriven.HumanReadable;
import org.drools.guvnor.client.messages.Constants;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.brl.CompositeFactPattern;
import org.drools.ide.common.client.modeldriven.brl.FactPattern;
import com.google.gwt.user.client.ui.*;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Command;
import java.util.ArrayList;
import java.util.List;
/**
* This represents a top level CE, like an OR, NOT, EXIST etc...
* Contains a list of FactPatterns.
*
* @author Michael Neale
*
*/
public class CompositeFactPatternWidget extends RuleModellerWidget {
protected final SuggestionCompletionEngine completions;
protected CompositeFactPattern pattern;
protected DirtyableFlexTable layout;
protected Constants constants = ((Constants) GWT.create(Constants.class));
protected boolean readOnly;
private List<FactPatternWidget> childWidgets;
public CompositeFactPatternWidget(RuleModeller modeller,
CompositeFactPattern pattern) {
this(modeller, pattern, null);
}
public CompositeFactPatternWidget(RuleModeller modeller,
CompositeFactPattern pattern,
Boolean readOnly) {
super(modeller);
this.completions = modeller.getSuggestionCompletions();
this.pattern = pattern;
this.layout = new DirtyableFlexTable();
this.layout.setStyleName( "model-builderInner-Background" );
if (readOnly != null){
this.readOnly = readOnly;
}else{
this.readOnly = false;
if (this.pattern != null && this.pattern.patterns != null){
for (int i = 0; i < this.pattern.patterns.length; i++) {
FactPattern factPattern = this.pattern.patterns[i];
if (!completions.containsFactType(factPattern.factType)){
this.readOnly = true;
break;
}
}
}
}
if (this.readOnly){
layout.addStyleName("editor-disabled-widget");
}
doLayout();
initWidget( layout );
}
protected void doLayout() {
this.childWidgets = new ArrayList<FactPatternWidget>();
this.layout.setWidget( 0,
0,
getCompositeLabel() );
this.layout.getFlexCellFormatter().setColSpan(0, 0, 2);
//this.layout.getFlexCellFormatter().setWidth(0, 0, "15%");
this.layout.setWidget(1, 0, new HTML(" "));
if ( pattern.patterns != null ) {
DirtyableVerticalPane vert = new DirtyableVerticalPane();
FactPattern[] facts = pattern.patterns;
for ( int i = 0; i < facts.length; i++ ) {
FactPatternWidget factPatternWidget = new FactPatternWidget(this.getModeller(), facts[i], false, this.readOnly);
factPatternWidget.addOnModifiedCommand(new Command() {
public void execute() {
setModified(true);
}
});
childWidgets.add(factPatternWidget);
vert.add(factPatternWidget);
}
this.layout.setWidget( 1,
1,
vert );
}
}
protected Widget getCompositeLabel() {
ClickHandler click = new ClickHandler() {
public void onClick(ClickEvent event) {
Widget w = (Widget)event.getSource();
showFactTypeSelector( w );
}
};
String lbl = HumanReadable.getCEDisplayName( pattern.type );
if (pattern.patterns == null || pattern.patterns.length ==0) {
lbl += " <font color='red'>" + constants.clickToAddPatterns() + "</font>";
}
return new ClickableLabel( lbl + ":", click, !this.readOnly ) ;
}
/**
* Pops up the fact selector.
*/
protected void showFactTypeSelector(final Widget w) {
final ListBox box = new ListBox();
String[] facts = completions.getFactTypes();
box.addItem(constants.Choose());
for ( int i = 0; i < facts.length; i++ ) {
box.addItem( facts[i] );
}
box.setSelectedIndex( 0 );
final FormStylePopup popup = new FormStylePopup();
popup.setTitle(constants.NewFactPattern());
popup.addAttribute(constants.chooseFactType(),
box );
box.addChangeListener( new ChangeListener() {
public void onChange(Widget w) {
pattern.addFactPattern( new FactPattern( box.getItemText( box.getSelectedIndex() ) ) );
setModified(true);
getModeller().refreshWidget();
popup.hide();
}
} );
popup.show();
}
public boolean isDirty() {
return layout.hasDirty();
}
@Override
public boolean isReadOnly() {
return this.readOnly;
}
}