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/*******************************************************************************
* Copyright (c) 2008 Oracle. 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:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.eclipselink.ui.internal.connection;
import org.eclipse.jpt.eclipselink.core.internal.context.connection.Connection;
import org.eclipse.jpt.eclipselink.ui.internal.EclipseLinkUiMessages;
import org.eclipse.jpt.ui.internal.util.LabeledControlUpdater;
import org.eclipse.jpt.ui.internal.util.LabeledLabel;
import org.eclipse.jpt.ui.internal.widgets.AbstractPane;
import org.eclipse.jpt.utility.internal.model.value.PropertyAspectAdapter;
import org.eclipse.jpt.utility.internal.model.value.TransformationPropertyValueModel;
import org.eclipse.jpt.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Spinner;
/**
* JdbcWriteConnectionsMinComposite
*/
@SuppressWarnings("nls")
public class JdbcWriteConnectionsMinComposite extends AbstractPane<Connection>
{
/**
* Creates a new <code>JdbcWriteConnectionsMinComposite</code>.
*
* @param parentController
* The parent container of this one
* @param parent
* The parent container
*/
public JdbcWriteConnectionsMinComposite(AbstractPane<Connection> parentComposite,
Composite parent) {
super(parentComposite, parent);
}
private WritablePropertyValueModel<Integer> buildWriteConnectionsMinHolder() {
return new PropertyAspectAdapter<Connection, Integer>(getSubjectHolder(), Connection.WRITE_CONNECTIONS_MIN_PROPERTY) {
@Override
protected Integer buildValue_() {
Integer value = subject.getWriteConnectionsMin();
if (value == null) {
value = -1;
}
return value;
}
@Override
protected void setValue_(Integer value) {
if (value == -1) {
value = null;
}
subject.setWriteConnectionsMin(value);
}
};
}
private PropertyValueModel<Integer> buildDefaultWriteConnectionsMinHolder() {
return new PropertyAspectAdapter<Connection, Integer>(getSubjectHolder(), "") {
@Override
protected Integer buildValue_() {
return subject.getDefaultWriteConnectionsMin();
}
@Override
protected void subjectChanged() {
Object oldValue = this.getValue();
super.subjectChanged();
Object newValue = this.getValue();
// Make sure the default value is appended to the text
if (oldValue == newValue && newValue == null) {
this.fireAspectChange(Integer.MIN_VALUE, newValue);
}
}
};
}
private Control buildDefaultWriteConnectionsMinLabel(Composite container) {
Label label = buildLabel(
container,
EclipseLinkUiMessages.DefaultWithoutValue
);
new LabeledControlUpdater(
new LabeledLabel(label),
buildDefaultWriteConnectionsMinLabelHolder()
);
return label;
}
private PropertyValueModel<String> buildDefaultWriteConnectionsMinLabelHolder() {
return new TransformationPropertyValueModel<Integer, String>(buildDefaultWriteConnectionsMinHolder()) {
@Override
protected String transform(Integer value) {
if (value != null) {
return NLS.bind(EclipseLinkUiMessages.DefaultWithValue, value);
}
return "";
}
};
}
@Override
protected void initializeLayout(Composite container) {
Spinner spinner = this.buildLabeledSpinner(
container,
EclipseLinkUiMessages.PersistenceXmlConnectionTab_writeConnectionsMinLabel,
this.buildWriteConnectionsMinHolder(),
-1,
-1,
Integer.MAX_VALUE,
this.buildDefaultWriteConnectionsMinLabel(container)
);
updateGridData(container, spinner);
}
/**
* Changes the layout of the given container by changing which widget will
* grab the excess of horizontal space. By default, the center control grabs
* the excess space, we change it to be the right control.
*
* @param container The container containing the controls needing their
* <code>GridData</code> to be modified from the default values
* @param spinner The spinner that got created
*/
private void updateGridData(Composite container, Spinner spinner) {
// It is possible the spinner's parent is not the container of the
// label, spinner and right control (a pane is sometimes required for
// painting the spinner's border)
Composite paneContainer = spinner.getParent();
while (container != paneContainer.getParent()) {
paneContainer = paneContainer.getParent();
}
Control[] controls = paneContainer.getChildren();
GridData gridData = new GridData();
gridData.grabExcessHorizontalSpace = false;
gridData.horizontalAlignment = GridData.BEGINNING;
controls[1].setLayoutData(gridData);
controls[2].setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
removeAlignRight(controls[2]);
}
}
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