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/*******************************************************************************
* Copyright (c) 2004, 2007 IBM Corporation and others.
*
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.views.memory;
import org.eclipse.debug.core.model.IMemoryBlockRetrieval;
import org.eclipse.debug.core.model.IMemoryBlockRetrievalExtension;
import org.eclipse.debug.internal.core.IInternalDebugCoreConstants;
import org.eclipse.debug.internal.ui.DebugUIMessages;
import org.eclipse.debug.internal.ui.SWTFactory;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TrayDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
/**
* @since 3.0
*/
public class MonitorMemoryBlockDialog extends TrayDialog implements ModifyListener {
private Combo expressionInput;
private Text lengthInput;
private String expression;
private String length;
private boolean needLength = true;
private String fPrefillExp = null;
private String fPrefillLength = null;
/**
* the predefined width of the wrapping label for the expression to enter
* combo
*
* @since 3.3
*/
private static final int LABEL_WIDTH = 210;
/**
* @param parentShell
*/
public MonitorMemoryBlockDialog(Shell parentShell, IMemoryBlockRetrieval memRetrieval, String prefillExp, String prefillLength) {
super(parentShell);
if (memRetrieval instanceof IMemoryBlockRetrievalExtension)
needLength = false;
fPrefillExp = prefillExp;
fPrefillLength = prefillLength;
setShellStyle(getShellStyle() | SWT.RESIZE);
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets
* .Composite)
*/
@Override
protected Control createDialogArea(Composite parent) {
Composite comp = (Composite) super.createDialogArea(parent);
SWTFactory.createWrapLabel(comp, DebugUIMessages.MonitorMemoryBlockDialog_EnterExpressionToMonitor, 1, LABEL_WIDTH);
expressionInput = SWTFactory.createCombo(comp, SWT.BORDER, 1, MemoryViewUtil.getHistory());
if (fPrefillExp != null) {
expressionInput.setText(fPrefillExp);
}
expressionInput.addModifyListener(this);
if (needLength) {
SWTFactory.createLabel(comp, DebugUIMessages.MonitorMemoryBlockDialog_NumberOfBytes, 1);
lengthInput = SWTFactory.createSingleText(comp, 1);
if (fPrefillLength != null) {
lengthInput.setText(fPrefillLength);
}
lengthInput.addModifyListener(this);
}
PlatformUI.getWorkbench().getHelpSystem().setHelp(comp, IDebugUIConstants.PLUGIN_ID + ".MonitorMemoryBlockDialog_context"); //$NON-NLS-1$
return comp;
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets
* .Shell)
*/
@Override
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
newShell.setText(DebugUIMessages.MonitorMemoryBlockDialog_MonitorMemory);
}
/**
* @return the entered expression
*/
public String getExpression() {
return expression;
}
/**
* @return the entered length
*/
public String getLength() {
return length;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#okPressed()
*/
@Override
protected void okPressed() {
expression = expressionInput.getText();
// add to HISTORY list
MemoryViewUtil.addHistory(expression);
if (needLength)
length = lengthInput.getText();
super.okPressed();
}
/*
* (non-Javadoc)
* @see
* org.eclipse.swt.events.ModifyListener#modifyText(org.eclipse.swt.events
* .ModifyEvent)
*/
@Override
public void modifyText(ModifyEvent e) {
updateOKButtonState();
}
private void updateOKButtonState() {
if (needLength) {
String lengthText = lengthInput.getText();
String input = expressionInput.getText();
if (input == null || input.equals(IInternalDebugCoreConstants.EMPTY_STRING) || lengthText == null || lengthText.equals(IInternalDebugCoreConstants.EMPTY_STRING)) {
getButton(IDialogConstants.OK_ID).setEnabled(false);
} else {
getButton(IDialogConstants.OK_ID).setEnabled(true);
}
}
}
/*
* (non-Javadoc)
* @see
* org.eclipse.jface.dialogs.Dialog#createButtonBar(org.eclipse.swt.widgets
* .Composite)
*/
@Override
protected Control createButtonBar(Composite parent) {
Control ret = super.createButtonBar(parent);
if (needLength)
updateOKButtonState();
else
// always enable the OK button if we only need the expression
getButton(IDialogConstants.OK_ID).setEnabled(true);
return ret;
}
}
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