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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.compare.examples.xml.ui;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.core.runtime.IStatus;
/**
* An abstract base class for dialogs with a status bar and ok/cancel buttons.
* The status message must be passed over as StatusInfo object and can be
* an error, warning or ok. The OK button is enabled or disabled depending
* on the status.
*/
public abstract class StatusDialog extends Dialog {
private Button fOkButton;
private MessageLine fStatusLine;
private IStatus fLastStatus;
private String fTitle;
private Image fImage;
/**
* Creates an instane of a status dialog.
*/
public StatusDialog(Shell parent) {
super(parent);
}
/**
* Specifies whether status line appears to the left of the buttons (default)
* or above them.
*
* @param aboveButtons if <code>true</code> status line is placed above buttons; if
* <code>false</code> to the right
*/
public void setStatusLineAboveButtons(boolean aboveButtons) {
}
/**
* Update the dialog's status line to reflect the given status.
* It is save to call this method before the dialog has been opened.
*/
protected void updateStatus(IStatus status) {
fLastStatus= status;
if (fStatusLine != null && !fStatusLine.isDisposed()) {
updateButtonsEnableState(status);
StatusUtil.applyToStatusLine(fStatusLine, status);
}
}
// 1GFCRWW: ITPJUI:ALL - Compile errors in VA/Java
/**
* Returns the last status.
*/
public IStatus getStatus() {
return fLastStatus;
}
/**
* Updates the status of the ok button to reflect the given status.
* Subclasses may override this method to update additional buttons.
* @param status the status.
*/
protected void updateButtonsEnableState(IStatus status) {
if (fOkButton != null && !fOkButton.isDisposed())
fOkButton.setEnabled(!status.matches(IStatus.ERROR));
}
/*
* @see Window#create(Shell)
*/
protected void configureShell(Shell shell) {
super.configureShell(shell);
if (fTitle != null)
shell.setText(fTitle);
}
/*
* @see Window#create()
*/
public void create() {
super.create();
if (fLastStatus != null) {
// policy: dialogs are not allowed to come up with an error message
if (fLastStatus.matches(IStatus.ERROR)) {
StatusInfo status= new StatusInfo();
status.setError(""); //$NON-NLS-1$
fLastStatus= status;
}
updateStatus(fLastStatus);
}
}
/*
* @see Dialog#createButtonsForButtonBar(Composite)
*/
protected void createButtonsForButtonBar(Composite parent) {
fOkButton= createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
}
/*
* @see Dialog#createButtonBar(Composite)
*/
protected Control createButtonBar(Composite parent) {
Composite composite= new Composite(parent, SWT.NULL);
GridLayout layout= new GridLayout();
layout.numColumns= 1;
layout.marginHeight= 0;
layout.marginWidth= convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
composite.setLayout(layout);
composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
fStatusLine= new MessageLine(composite);
fStatusLine.setAlignment(SWT.LEFT);
fStatusLine.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
fStatusLine.setMessage(""); //$NON-NLS-1$
super.createButtonBar(composite);
return composite;
}
/**
* Sets the title for this dialog.
* @param title the title.
*/
public void setTitle(String title) {
fTitle= title != null ? title : ""; //$NON-NLS-1$
Shell shell= getShell();
if ((shell != null) && !shell.isDisposed())
shell.setText(fTitle);
}
/**
* Sets the image for this dialog.
* @param image the image.
*/
public void setImage(Image image) {
fImage= image;
Shell shell= getShell();
if ((shell != null) && !shell.isDisposed())
shell.setImage(fImage);
}
}
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