Java tutorial
/* ==================================================================== * * The ObjectStyle Group Software License, Version 1.0 * * Copyright (c) 2002 - 2006 The ObjectStyle Group * and individual authors of the software. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. 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For more * information on the ObjectStyle Group, please see * <http://objectstyle.org/>. * */ package org.objectstyle.wolips.ui.preferences; import java.util.LinkedList; import java.util.List; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.InputDialog; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; 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.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.objectstyle.wolips.baseforplugins.util.ArrayUtilities; import org.objectstyle.wolips.baseforplugins.util.StringUtilities; import org.objectstyle.wolips.preferences.ILaunchInfo; import org.objectstyle.wolips.preferences.Preferences; import org.objectstyle.wolips.preferences.PreferencesMessages; /** * @author uli */ public class LaunchPreferencesPage extends PreferencePage implements IWorkbenchPreferencePage { private Table includeTable; private Button addButton; private Button removeButton; private Button changeButton; private String preferencesKey; private List<String> allParameter; private List<String> allArguments; public void init(IWorkbench workbench) { setDescription(PreferencesMessages.getString("LaunchPreferencesPage.description")); //$NON-NLS-1$ this.preferencesKey = Preferences.PREF_LAUNCH_GLOBAL; } protected Control createContents(Composite ancestor) { Composite parent = new Composite(ancestor, SWT.NULL); GridLayout layout = new GridLayout(); layout.marginWidth = 0; layout.marginHeight = 0; layout.numColumns = 2; parent.setLayout(layout); GridData data = new GridData(); data.verticalAlignment = GridData.FILL; data.horizontalAlignment = GridData.FILL; parent.setLayoutData(data); // set F1 help // WorkbenchHelp.setHelp(parent, // IHelpContextIds.IGNORE_PREFERENCE_PAGE); Label l1 = new Label(parent, SWT.NULL); l1.setText(PreferencesMessages.getString("LaunchPreferencesPage.label")); //$NON-NLS-1$ data = new GridData(GridData.VERTICAL_ALIGN_BEGINNING); data.horizontalSpan = 3; l1.setLayoutData(data); // includeTable = new Table(parent, SWT.CHECK | SWT.BORDER); this.includeTable = new Table(parent, SWT.CHECK | SWT.BORDER); GridData gd = new GridData(GridData.FILL_BOTH); // gd.widthHint = convertWidthInCharsToPixels(30); gd.heightHint = 300; this.includeTable.setLayoutData(gd); this.includeTable.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { handleSelection(); } }); Composite buttons = new Composite(parent, SWT.NULL); buttons.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING)); layout = new GridLayout(); layout.marginHeight = 0; layout.marginWidth = 0; buttons.setLayout(layout); this.addButton = new Button(buttons, SWT.PUSH); this.addButton.setText(PreferencesMessages.getString("LaunchPreferencesPage.add")); //$NON-NLS-1$ data = new GridData(); data.horizontalAlignment = GridData.FILL; data.heightHint = Math.max(data.heightHint, this.addButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).y); int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); data.widthHint = Math.max(widthHint, this.addButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x); this.addButton.setLayoutData(data); this.addButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { addIgnore(); } }); this.removeButton = new Button(buttons, SWT.PUSH); this.removeButton.setText(PreferencesMessages.getString("LaunchPreferencesPage.remove")); //$NON-NLS-1$ data = new GridData(); data.horizontalAlignment = GridData.FILL; data.heightHint = Math.max(data.heightHint, this.removeButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).y); widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); data.widthHint = Math.max(widthHint, this.removeButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x); this.removeButton.setLayoutData(data); this.removeButton.setEnabled(false); this.removeButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { removeIgnore(); } }); this.changeButton = new Button(buttons, SWT.PUSH); this.changeButton.setText(PreferencesMessages.getString("LaunchPreferencesPage.change")); //$NON-NLS-1$ data = new GridData(); data.horizontalAlignment = GridData.FILL; data.heightHint = Math.max(data.heightHint, this.changeButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).y); widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); data.widthHint = Math.max(widthHint, this.removeButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x); this.changeButton.setLayoutData(data); this.changeButton.setEnabled(false); this.changeButton.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { changeArgument(); } }); fillTable(Preferences.getLaunchInfoForKey(this.preferencesKey)); Dialog.applyDialogFont(ancestor); return parent; } /** * Do anything necessary because the OK button has been pressed. * * @return whether it is okay to close the preference page */ public boolean performOk() { int count = this.includeTable.getItemCount(); String[] parameter = new String[count]; String[] arguments = new String[count]; boolean[] enabled = new boolean[count]; TableItem[] items = this.includeTable.getItems(); for (int i = 0; i < count; i++) { parameter[i] = this.allParameter.get(i); arguments[i] = this.allArguments.get(i); enabled[i] = items[i].getChecked(); } Preferences.setLaunchInfoForKey(parameter, arguments, enabled, this.preferencesKey); // Team.setAllIgnores(patterns, enabled); // TeamUIPlugin.broadcastPropertyChange(new PropertyChangeEvent(this, // TeamUI.GLOBAL_IGNORES_CHANGED, null, null)); return true; } protected void performDefaults() { super.performDefaults(); this.includeTable.removeAll(); String string = PreferencesMessages.getString(this.preferencesKey); Preferences.setString(this.preferencesKey, string); fillTable(Preferences.getLaunchInfoForKey(this.preferencesKey)); } private void fillTable(ILaunchInfo[] launchInfoArray) { this.allArguments = new LinkedList<String>(); this.allParameter = new LinkedList<String>(); for (int i = 0; i < launchInfoArray.length; i++) { ILaunchInfo launchInfo = launchInfoArray[i]; TableItem item = new TableItem(this.includeTable, SWT.NONE); item.setText(StringUtilities.toCommandlineParameterFormat(launchInfo.getParameter(), launchInfo.getArgument(), false)); this.allParameter.add(launchInfo.getParameter()); this.allArguments.add(launchInfo.getArgument()); item.setChecked(launchInfo.isEnabled()); } } void addIgnore() { InputDialog parameterDialog = new InputDialog(getShell(), PreferencesMessages.getString("LaunchPreferencesPage.enterParameterShort"), //$NON-NLS-1$ PreferencesMessages.getString("LaunchPreferencesPage.enterPatternLong"), null, null); //$NON-NLS-1$ parameterDialog.open(); if (parameterDialog.getReturnCode() != Window.OK) return; InputDialog argumentDialog = new InputDialog(getShell(), PreferencesMessages.getString("LaunchPreferencesPage.enterArgumentShort"), //$NON-NLS-1$ PreferencesMessages.getString("LaunchPreferencesPage.enterArgumentLong"), null, null); //$NON-NLS-1$ argumentDialog.open(); if (argumentDialog.getReturnCode() != Window.OK) return; String parameter = parameterDialog.getValue(); String argument = argumentDialog.getValue(); if (parameter.equals("") || argument.equals("")) return; //$NON-NLS-1$ // Check if the item already exists TableItem[] items = this.includeTable.getItems(); for (int i = 0; i < items.length; i++) { if (items[i].getText(1).equals(parameter)) { MessageDialog.openWarning(getShell(), PreferencesMessages.getString("LaunchPreferencesPage.parameterExistsShort"), //$NON-NLS-1$ PreferencesMessages.getString("LaunchPreferencesPage.patternExistsLong")); //$NON-NLS-1$ return; } } TableItem item = new TableItem(this.includeTable, SWT.NONE); item.setText(StringUtilities.toCommandlineParameterFormat(parameter, argument, false)); this.allParameter.add(parameter); this.allArguments.add(argument); item.setChecked(true); } void removeIgnore() { int[] selection = this.includeTable.getSelectionIndices(); this.includeTable.remove(selection); if (selection == null) return; int[] newIndices = new int[selection.length]; System.arraycopy(selection, 0, newIndices, 0, selection.length); ArrayUtilities.sort(selection); int last = -1; for (int i = 0; i < newIndices.length; i++) { int index = newIndices[i]; if (index != last || i == 0) { this.allParameter.remove(index); this.allArguments.remove(index); } last = index; } } void changeArgument() { int[] selection = this.includeTable.getSelectionIndices(); if (selection.length != 1) return; int index = selection[0]; InputDialog argumentDialog = new InputDialog(getShell(), PreferencesMessages.getString("LaunchPreferencesPage.enterArgumentShort"), //$NON-NLS-1$ PreferencesMessages.getString("LaunchPreferencesPage.enterArgumentLong"), //$NON-NLS-1$ this.allArguments.get(index), null); argumentDialog.open(); if (argumentDialog.getReturnCode() != Window.OK) return; String argument = argumentDialog.getValue(); String parameter = this.allParameter.get(index); TableItem item = this.includeTable.getItem(index); item.setText(StringUtilities.toCommandlineParameterFormat(parameter, argument, false)); this.allArguments.set(index, argument); } void handleSelection() { if (this.includeTable.getSelectionCount() > 0) { this.changeButton.setEnabled(true); this.removeButton.setEnabled(true); } else { this.changeButton.setEnabled(false); this.removeButton.setEnabled(false); } } }