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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.views.memory;
import java.io.UnsupportedEncodingException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.debug.internal.ui.DebugUIMessages;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
public class CodePagesPreferencePage extends FieldEditorPreferencePage {
private StringFieldEditor fEbcdicCodePage;
private StringFieldEditor fAsciiCodePage;
protected CodePagesPreferencePage() {
super(FieldEditorPreferencePage.GRID);
setPreferenceStore(DebugUITools.getPreferenceStore());
setTitle(DebugUIMessages.CodePagesPrefDialog_1);
}
@Override
protected void createFieldEditors() {
fAsciiCodePage = new StringFieldEditor(IDebugUIConstants.PREF_DEFAULT_ASCII_CODE_PAGE, DebugUIMessages.CodePagesPrefDialog_2, getFieldEditorParent());
fAsciiCodePage.setEmptyStringAllowed(false);
addField(fAsciiCodePage);
fEbcdicCodePage = new StringFieldEditor(IDebugUIConstants.PREF_DEFAULT_EBCDIC_CODE_PAGE, DebugUIMessages.CodePagesPrefDialog_4, getFieldEditorParent());
fEbcdicCodePage.setEmptyStringAllowed(false);
addField(fEbcdicCodePage);
}
@Override
public boolean performOk() {
if (fAsciiCodePage == null || fEbcdicCodePage == null)
return super.performOk();
// check that the codepages are supported
String asciiCodePage = fAsciiCodePage.getStringValue();
asciiCodePage = asciiCodePage.trim();
try {
new String(new byte[] { 1 }, asciiCodePage);
} catch (UnsupportedEncodingException e) {
Shell shell = DebugUIPlugin.getShell();
if (shell != null) {
IStatus status = DebugUIPlugin.newErrorStatus(DebugUIMessages.CodePagesPrefDialog_0, e);
ErrorDialog.openError(shell, DebugUIMessages.CodePagesPrefDialog_6, DebugUIMessages.CodePagesPrefDialog_7, status); //
}
return false;
}
String ebcdicCodePage = fEbcdicCodePage.getStringValue();
ebcdicCodePage = ebcdicCodePage.trim();
try {
new String(new byte[] { 1 }, ebcdicCodePage);
} catch (UnsupportedEncodingException e) {
Shell shell = DebugUIPlugin.getShell();
if (shell != null) {
IStatus status = DebugUIPlugin.newErrorStatus(DebugUIMessages.CodePagesPrefDialog_0, e);
ErrorDialog.openError(shell, DebugUIMessages.CodePagesPrefDialog_8, DebugUIMessages.CodePagesPrefDialog_9, status); //
}
return false;
}
return super.performOk();
}
@Override
protected Control createContents(Composite parent) {
PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, DebugUIPlugin.getUniqueIdentifier() + ".CodePagesPrefDialog_context"); //$NON-NLS-1$
return super.createContents(parent);
}
}
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