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/*******************************************************************************
* Copyright (c) 2006, 2008 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.common.ui.internal.dialogfield;
import org.eclipse.jst.jsf.common.ui.JSFUICommonPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.forms.widgets.FormToolkit;
/**
* Dialog field containing a label, text control and a button control.
*/
public class StringButtonDialogField extends StringDialogField {
private Button _browseButton;
private String _browseButtonLabel;
private IStringButtonAdapter _stringButtonAdapter;
private boolean _buttonEnabled;
/**
* @param adapter
*/
public StringButtonDialogField(IStringButtonAdapter adapter) {
_stringButtonAdapter = adapter;
_browseButtonLabel = JSFUICommonPlugin
.getResourceString("DialogField.Browse"); //$NON-NLS-1$
_buttonEnabled = true;
}
/**
* Sets the label of the button.
* @param label
*/
public void setButtonLabel(String label) {
_browseButtonLabel = label;
}
// ------ adapter communication
/**
* Programmatical pressing of the button
*/
public void changeControlPressed() {
_stringButtonAdapter.changeControlPressed(this);
}
// ------- layout helpers
/*
* @see DialogField#doFillIntoGrid
*/
public Control[] doFillIntoGrid(FormToolkit toolkit, Composite parent,
int nColumns) {
assertEnoughColumns(nColumns);
Control requiredLabel = getRequiredLabelControl(toolkit, parent);
requiredLabel.setLayoutData(gridDataForLabel(1));
Control label = getLabelControl(toolkit, parent);
label.setLayoutData(gridDataForLabel(1));
Text text = getTextControl(toolkit, parent);
text.setLayoutData(gridDataForText(nColumns - 3));
Button button = getChangeControl(toolkit, parent);
button.setLayoutData(gridDataForButton(toolkit, button, text, 1));
return new Control[] { requiredLabel, label, text, button };
}
/*
* @see DialogField#getNumberOfControls
*/
public int getNumberOfControls() {
return 4;
}
/**
* @param toolkit
* @param button
* @param text
* @param span
* @return the grid data for the button
*/
protected static GridData gridDataForButton(FormToolkit toolkit,
Button button, Text text, int span) {
GridData gd = new GridData();
gd.horizontalAlignment = GridData.FILL;
gd.grabExcessHorizontalSpace = false;
gd.horizontalSpan = span;
// gd.heightHint = SWTUtil.getButtonHeightHint(button);
gd.widthHint = LayoutUtil.getButtonWidthHint(button);
gd.heightHint = LayoutUtil.getButtonHeightHint(toolkit, text);
return gd;
}
// ------- ui creation
/**
* Creates or returns the created buttom widget.
* @param toolkit
*
* @param parent
* The parent composite or <code>null</code> if the widget has
* already been created.
* @return the button
*/
public Button getChangeControl(FormToolkit toolkit, Composite parent) {
if (_browseButton == null || _browseButton.isDisposed()) {
assertCompositeNotNull(parent);
if (toolkit != null) {
_browseButton = toolkit.createButton(parent,
_browseButtonLabel, SWT.PUSH);
} else {
_browseButton = new Button(parent, SWT.PUSH);
_browseButton.setText(_browseButtonLabel);
}
_browseButton.setEnabled(isEnabled() && _buttonEnabled);
_browseButton.addSelectionListener(new SelectionListener() {
public void widgetDefaultSelected(SelectionEvent e) {
changeControlPressed();
}
public void widgetSelected(SelectionEvent e) {
changeControlPressed();
}
});
}
return _browseButton;
}
// ------ enable / disable management
/**
* Sets the enable state of the button.
* @param enable
*/
public void enableButton(boolean enable) {
if (isOkToUse(_browseButton)) {
_browseButton.setEnabled(isEnabled() && enable);
}
_buttonEnabled = enable;
}
/*
* @see DialogField#updateEnableState
*/
protected void updateEnableState() {
super.updateEnableState();
if (isOkToUse(_browseButton)) {
_browseButton.setEnabled(isEnabled() && _buttonEnabled);
}
}
/**
* @return Returns the _stringButtonAdapter.
*/
public IStringButtonAdapter getStringButtonAdapter() {
return _stringButtonAdapter;
}
/**
* @param buttonAdapter
* The _stringButtonAdapter to set.
*/
public void setStringButtonAdapter(IStringButtonAdapter buttonAdapter) {
_stringButtonAdapter = buttonAdapter;
}
}
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