| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.provisional.analysis.lami.ui.handler; |
| |
| import org.eclipse.jdt.annotation.NonNullByDefault; |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.dialogs.IInputValidator; |
| import org.eclipse.jface.resource.StringConverter; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Color; |
| 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.Display; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * Adaptation of {@link InputDialog}, to show the command in a grayed out, |
| * read-only input field, and a editable input field for the user to add extra |
| * parameters. |
| * |
| * @author Alexandre Montplaisir |
| */ |
| @NonNullByDefault({}) |
| class ParameterDialog extends Dialog { |
| |
| private static final Color GRAY_COLOR = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GRAY); |
| |
| private String fTitle; |
| private String fMessage; |
| private String fValue = "";//$NON-NLS-1$ |
| private IInputValidator fValidator; |
| private Button fOkButton; |
| private Text fText; |
| private Text fErrorMessageText; |
| private String fErrorMessage; |
| |
| private Text fBaseCommandText; |
| private final String fBaseCommand; |
| |
| public ParameterDialog(Shell parentShell, |
| String dialogTitle, |
| String dialogMessage, |
| String baseCommand, |
| IInputValidator validator) { |
| super(parentShell); |
| fTitle = dialogTitle; |
| fMessage = dialogMessage; |
| fValue = "";//$NON-NLS-1$ |
| fValidator = validator; |
| fBaseCommand = baseCommand; |
| } |
| |
| @Override |
| protected void buttonPressed(int buttonId) { |
| if (buttonId == IDialogConstants.OK_ID) { |
| fValue = fText.getText(); |
| } else { |
| fValue = null; |
| } |
| super.buttonPressed(buttonId); |
| } |
| |
| @Override |
| protected void configureShell(Shell shell) { |
| super.configureShell(shell); |
| if (fTitle != null) { |
| shell.setText(fTitle); |
| } |
| } |
| |
| @Override |
| protected void createButtonsForButtonBar(Composite parent) { |
| fOkButton = createButton(parent, IDialogConstants.OK_ID, |
| IDialogConstants.OK_LABEL, true); |
| createButton(parent, IDialogConstants.CANCEL_ID, |
| IDialogConstants.CANCEL_LABEL, false); |
| fText.setFocus(); |
| if (fValue != null) { |
| fText.setText(fValue); |
| fText.selectAll(); |
| } |
| } |
| |
| @Override |
| protected Control createDialogArea(Composite parent) { |
| // create composite |
| Composite composite = (Composite) super.createDialogArea(parent); |
| |
| Label label = new Label(composite, SWT.WRAP); |
| label.setText(Messages.ParameterDialog_BaseCommand + ':'); |
| |
| fBaseCommandText = new Text(composite, getInputTextStyle() | SWT.READ_ONLY); |
| fBaseCommandText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL |
| | GridData.HORIZONTAL_ALIGN_FILL)); |
| fBaseCommandText.setText(fBaseCommand); |
| fBaseCommandText.setForeground(GRAY_COLOR); |
| |
| // create message |
| if (fMessage != null) { |
| label = new Label(composite, SWT.WRAP); |
| label.setText(fMessage); |
| GridData data = new GridData(GridData.GRAB_HORIZONTAL |
| | GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL |
| | GridData.VERTICAL_ALIGN_CENTER); |
| data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH); |
| label.setLayoutData(data); |
| label.setFont(parent.getFont()); |
| } |
| |
| |
| |
| fText = new Text(composite, getInputTextStyle()); |
| fText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL |
| | GridData.HORIZONTAL_ALIGN_FILL)); |
| fText.addModifyListener(e -> validateInput()); |
| fErrorMessageText = new Text(composite, SWT.READ_ONLY | SWT.WRAP); |
| fErrorMessageText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL |
| | GridData.HORIZONTAL_ALIGN_FILL)); |
| fErrorMessageText.setBackground(fErrorMessageText.getDisplay() |
| .getSystemColor(SWT.COLOR_WIDGET_BACKGROUND)); |
| setErrorMessage(fErrorMessage); |
| |
| applyDialogFont(composite); |
| return composite; |
| } |
| |
| /** |
| * Returns the ok button. |
| * |
| * @return the ok button |
| */ |
| protected Button getOkButton() { |
| return fOkButton; |
| } |
| |
| /** |
| * Returns the string typed into this input dialog. |
| * |
| * @return the input string |
| */ |
| public String getValue() { |
| return fValue; |
| } |
| |
| /** |
| * Validates the input. |
| * <p> |
| * The default implementation of this framework method delegates the request |
| * to the supplied input validator object; if it finds the input invalid, |
| * the error message is displayed in the dialog's message line. This hook |
| * method is called whenever the text changes in the input field. |
| * </p> |
| */ |
| protected void validateInput() { |
| String errMsg = null; |
| if (fValidator != null) { |
| errMsg = fValidator.isValid(fText.getText()); |
| } |
| setErrorMessage(errMsg); |
| } |
| |
| /** |
| * Sets or clears the error message. |
| * If not <code>null</code>, the OK button is disabled. |
| * |
| * @param errorMessage |
| * the error message, or <code>null</code> to clear |
| */ |
| private void setErrorMessage(String errorMessage) { |
| this.fErrorMessage = errorMessage; |
| if (fErrorMessageText != null && !fErrorMessageText.isDisposed()) { |
| fErrorMessageText.setText(errorMessage == null ? " \n " : errorMessage); //$NON-NLS-1$ |
| boolean hasError = errorMessage != null && (StringConverter.removeWhiteSpaces(errorMessage)).length() > 0; |
| fErrorMessageText.setEnabled(hasError); |
| fErrorMessageText.setVisible(hasError); |
| fErrorMessageText.getParent().update(); |
| Control button = getButton(IDialogConstants.OK_ID); |
| if (button != null) { |
| button.setEnabled(errorMessage == null); |
| } |
| } |
| } |
| |
| /** |
| * Returns the style bits that should be used for the input text field. |
| * Defaults to a single line entry. Subclasses may override. |
| * |
| * @return the integer style bits that should be used when creating the |
| * input text |
| */ |
| protected int getInputTextStyle() { |
| return SWT.SINGLE | SWT.BORDER; |
| } |
| } |