Java tutorial
/************************************************************************************* * Copyright (c) 2011-2014 Red Hat, Inc. 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: * Fred Bricon / JBoss by Red Hat - Initial implementation. ************************************************************************************/ package org.eclipse.m2e.profiles.ui.internal.dialog; import java.util.Iterator; import java.util.List; import java.util.Set; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITableColorProvider; import org.eclipse.jface.viewers.ITableFontProvider; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.m2e.core.MavenPlugin; import org.eclipse.m2e.core.project.IMavenProjectFacade; import org.eclipse.m2e.profiles.core.internal.ProfileState; import org.eclipse.m2e.profiles.ui.internal.Messages; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; 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.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.Text; /** * Maven Profile selection dialog. * * @author Fred Bricon * @since 1.5.0 */ @SuppressWarnings("synthetic-access") public class SelectProfilesDialog extends TitleAreaDialog implements IMenuListener { private static int PROFILE_ID_COLUMN = 0; private static int SOURCE_COLUMN = 1; private CheckboxTableViewer profileTableViewer; private Button offlineModeBtn; private Button forceUpdateBtn; private Text profilesText; private boolean offlineMode; private boolean forceUpdate; List<ProfileSelection> sharedProfiles; Set<IMavenProjectFacade> facades; IMavenProjectFacade facade; final Action activationAction = new ChangeProfileStateAction(ProfileState.Active); final Action deActivationAction = new ChangeProfileStateAction(ProfileState.Disabled); private Label warningImg; private Label warningLabel; public SelectProfilesDialog(Shell parentShell, Set<IMavenProjectFacade> facades, List<ProfileSelection> sharedProfiles) { super(parentShell); setShellStyle(super.getShellStyle() | SWT.RESIZE | SWT.MODELESS); offlineMode = MavenPlugin.getMavenConfiguration().isOffline(); this.facades = facades; if (facades.size() == 1) { facade = facades.iterator().next(); } this.sharedProfiles = sharedProfiles; } @Override protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText(Messages.SelectProfilesDialog_Select_Maven_profiles); } @Override protected Control createDialogArea(Composite parent) { Composite area = (Composite) super.createDialogArea(parent); Composite container = new Composite(area, SWT.NONE); container.setEnabled(true); GridLayout layout = new GridLayout(3, false); layout.marginLeft = 12; container.setLayout(layout); container.setLayoutData(new GridData(GridData.FILL_BOTH)); setTitle(Messages.SelectProfilesDialog_Maven_profile_selection); String text; boolean hasProfiles = !sharedProfiles.isEmpty(); if (facade == null) { text = NLS.bind(Messages.SelectProfilesDialog_Select_active_profiles_for_selected_projects, facades.size()); } else { text = NLS.bind(Messages.SelectProfilesDialog_Select_the_active_Maven_profiles, facade.getProject().getName()); if (hasProfiles) { displayProfilesAsText(container); } } setMessage(text); if (hasProfiles && facade == null) { displayWarning(container); } Label lblAvailable = new Label(container, SWT.NONE); lblAvailable.setLayoutData(new GridData(SWT.WRAP, SWT.CENTER, true, false, 2, 1)); String textLabel = getAvailableText(hasProfiles); lblAvailable.setText(textLabel); if (hasProfiles) { displayProfilesTable(container); addSelectionButton(container, Messages.SelectProfilesDialog_SelectAll, true); addSelectionButton(container, Messages.SelectProfilesDialog_DeselectAll, false); addActivationButton(container, "Activate", ProfileState.Active); addActivationButton(container, "Deactivate", ProfileState.Disabled); offlineModeBtn = addCheckButton(container, Messages.SelectProfilesDialog_Offline, offlineMode); forceUpdateBtn = addCheckButton(container, Messages.SelectProfilesDialog_Force_update, forceUpdate); } return area; } private void displayWarning(Composite container) { warningImg = new Label(container, SWT.CENTER); warningLabel = new Label(container, SWT.NONE); warningLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1)); GridDataFactory.fillDefaults().align(SWT.LEFT, SWT.CENTER).applyTo(warningImg); warningImg.setImage(JFaceResources.getImage(DLG_IMG_MESSAGE_WARNING)); warningLabel.setText(Messages.SelectProfilesDialog_Warning_Common_profiles); } private String getAvailableText(boolean hasProfiles) { String textLabel; if (hasProfiles) { textLabel = Messages.SelectProfilesDialog_Available_profiles; } else { if (facade == null) { textLabel = NLS.bind(Messages.SelectProfilesDialog_No_Common_Profiles, facades.size()); } else { textLabel = NLS.bind(Messages.SelectProfilesDialog_Project_has_no_available_profiles, facade.getProject().getName()); } } return textLabel; } private void displayProfilesTable(Composite container) { GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true, 2, 4); gd.heightHint = 200; gd.widthHint = 500; profileTableViewer = CheckboxTableViewer.newCheckList(container, SWT.BORDER | SWT.MULTI); Table table = profileTableViewer.getTable(); table.setFocus(); table.setLayoutData(gd); table.setLinesVisible(true); table.setHeaderVisible(true); TableColumn profileColumn = new TableColumn(table, SWT.NONE); profileColumn.setText(Messages.SelectProfilesDialog_Profile_id_header); profileColumn.setWidth(350); TableColumn sourceColumn = new TableColumn(table, SWT.NONE); sourceColumn.setText(Messages.SelectProfilesDialog_Profile_source_header); sourceColumn.setWidth(120); profileTableViewer.setContentProvider(ArrayContentProvider.getInstance()); profileTableViewer.setLabelProvider(new ProfileLabelProvider(container.getFont())); profileTableViewer.addCheckStateListener(new ICheckStateListener() { public void checkStateChanged(CheckStateChangedEvent event) { ProfileSelection profile = (ProfileSelection) event.getElement(); if (profileTableViewer.getGrayed(profile)) { profileTableViewer.setGrayed(profile, false); } profile.setSelected(profileTableViewer.getChecked(profile)); if (Boolean.FALSE.equals(profile.getSelected()) || profile.getActivationState() == null) { profile.setActivationState(ProfileState.Active); } updateProfilesAsText(); profileTableViewer.refresh(); } }); profileTableViewer.setInput(sharedProfiles); createMenu(); } private void displayProfilesAsText(Composite container) { Label profilesLabel = new Label(container, SWT.NONE); profilesLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1)); profilesLabel.setText( NLS.bind(Messages.SelectProfilesDialog_Active_Profiles_for_Project, facade.getProject().getName())); profilesText = new Text(container, SWT.BORDER); profilesText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1)); profilesText.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GRAY)); profilesText.setEditable(false); profilesText.setToolTipText(Messages.SelectProfilesDialog_Read_Only_profiles); updateProfilesAsText(); } private void updateProfilesAsText() { if (profilesText != null) { profilesText.setText(ProfileUtil.toString(sharedProfiles)); } } private Button addCheckButton(Composite container, String label, boolean selected) { Button checkBtn = new Button(container, SWT.CHECK); checkBtn.setText(label); checkBtn.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 2, 1)); checkBtn.setSelection(selected); return checkBtn; } private Button addSelectionButton(Composite container, String label, final boolean ischecked) { Button button = new Button(container, SWT.NONE); button.setLayoutData(new GridData(SWT.FILL, SWT.UP, false, false, 1, 1)); button.setText(label); button.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { profileTableViewer.setAllGrayed(false); for (ProfileSelection profile : sharedProfiles) { profileTableViewer.setChecked(profile, ischecked); profile.setSelected(ischecked); if (!ischecked || profile.getActivationState() == null) { profile.setActivationState(ProfileState.Active); } } refresh(); } public void widgetDefaultSelected(SelectionEvent e) { } }); return button; } private Button addActivationButton(Composite container, String label, final ProfileState state) { Button button = new Button(container, SWT.NONE); button.setLayoutData(new GridData(SWT.FILL, SWT.UP, false, false, 1, 1)); button.setText(label); button.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { ISelection s = profileTableViewer.getSelection(); if (s instanceof IStructuredSelection) { IStructuredSelection sel = (IStructuredSelection) s; setActivationState(sel, state); } refresh(); } public void widgetDefaultSelected(SelectionEvent e) { } }); return button; } @Override protected void createButtonsForButtonBar(Composite parent) { if (profileTableViewer != null) { createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); } createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } @Override protected void okPressed() { if (profileTableViewer != null) { offlineMode = offlineModeBtn.getSelection(); forceUpdate = forceUpdateBtn.getSelection(); } super.okPressed(); } private void createMenu() { MenuManager menuMgr = new MenuManager(); Menu contextMenu = menuMgr.createContextMenu(profileTableViewer.getControl()); menuMgr.addMenuListener(this); profileTableViewer.getControl().setMenu(contextMenu); menuMgr.setRemoveAllWhenShown(true); for (ProfileSelection p : sharedProfiles) { Boolean selected = p.getSelected(); if (selected == null || p.getActivationState() == null) { profileTableViewer.setGrayed(p, true); profileTableViewer.setChecked(p, true); } else { profileTableViewer.setChecked(p, selected); } } } public void menuAboutToShow(IMenuManager manager) { IStructuredSelection selection = (IStructuredSelection) profileTableViewer.getSelection(); if (!selection.isEmpty()) { boolean multiSelection = selection.size() > 1; ProfileState state = null; String selectionText; String text; if (multiSelection) { selectionText = "selected profiles"; } else { ProfileSelection entry = (ProfileSelection) selection.getFirstElement(); state = entry.getActivationState(); selectionText = entry.getId(); } if (state == null || ProfileState.Disabled.equals(state)) { text = Messages.SelectProfilesDialog_Activate_menu; activationAction.setText(NLS.bind(text, selectionText)); manager.add(activationAction); } if (!ProfileState.Disabled.equals(state)) { text = Messages.SelectProfilesDialog_Deactivate_menu; deActivationAction.setText(NLS.bind(text, selectionText)); manager.add(deActivationAction); } } } public boolean isOffline() { return offlineMode; } public boolean isForceUpdate() { return forceUpdate; } private void setActivationState(final IStructuredSelection sel, ProfileState state) { if (sel == null) return; Iterator<?> ite = sel.iterator(); while (ite.hasNext()) { Object o = ite.next(); if (o instanceof ProfileSelection) { ProfileSelection ps = (ProfileSelection) o; ps.setActivationState(state); profileTableViewer.setGrayed(ps, false); if (ProfileState.Disabled.equals(state)) { profileTableViewer.setChecked(ps, true); ps.setSelected(true); } } } } private void refresh() { profileTableViewer.refresh(); updateProfilesAsText(); } private class ChangeProfileStateAction extends Action { private final ProfileState state; public ChangeProfileStateAction(ProfileState state) { this.state = state; } @Override public void run() { IStructuredSelection selection = (IStructuredSelection) profileTableViewer.getSelection(); if (!selection.isEmpty()) { setActivationState(selection, state); refresh(); } super.run(); } } private class ProfileLabelProvider extends LabelProvider implements ITableLabelProvider, ITableFontProvider, ITableColorProvider { private Font implicitActivationFont; private Color inactiveColor; public ProfileLabelProvider(Font defaultFont) { FontData[] fds = defaultFont.getFontData(); for (FontData fd : fds) { fd.setStyle(SWT.ITALIC); } implicitActivationFont = new Font(defaultFont.getDevice(), fds); inactiveColor = Display.getCurrent().getSystemColor(SWT.COLOR_GRAY); } public Font getFont(Object element, int columnIndex) { ProfileSelection entry = (ProfileSelection) element; Font font = null; if (Boolean.TRUE.equals(entry.getAutoActive()) && PROFILE_ID_COLUMN == columnIndex) { font = implicitActivationFont; } return font; } public Color getForeground(Object element, int columnIndex) { ProfileSelection entry = (ProfileSelection) element; if (ProfileState.Disabled.equals(entry.getActivationState())) { return inactiveColor; } return null; } public Color getBackground(Object element, int columnIndex) { return null; } public Image getColumnImage(Object element, int columnIndex) { return null; } public String getColumnText(Object element, int columnIndex) { ProfileSelection entry = (ProfileSelection) element; StringBuilder text = new StringBuilder(); if (entry != null) { if (columnIndex == PROFILE_ID_COLUMN) { text.append(entry.getId()); ProfileState state = entry.getActivationState(); if (Boolean.TRUE.equals(entry.getSelected()) && state == ProfileState.Disabled) { text.append(Messages.SelectProfilesDialog_deactivated); } else if (Boolean.TRUE.equals(entry.getAutoActive())) { text.append(Messages.SelectProfilesDialog_autoactivated); } } else if (columnIndex == SOURCE_COLUMN) { text.append(entry.getSource()); } } return text.toString(); } } }