package org.eclipse.team.internal.ui;/* * (c) Copyright IBM Corp. 2000, 2002. * All Rights Reserved. */ import java.util.ArrayList;import java.util.Iterator;import java.util.List;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.viewers.CellEditor;import org.eclipse.jface.viewers.ColumnWeightData;import org.eclipse.jface.viewers.ComboBoxCellEditor;import org.eclipse.jface.viewers.DoubleClickEvent;import org.eclipse.jface.viewers.ICellModifier;import org.eclipse.jface.viewers.IDoubleClickListener;import org.eclipse.jface.viewers.ISelection;import org.eclipse.jface.viewers.IStructuredContentProvider;import org.eclipse.jface.viewers.IStructuredSelection;import org.eclipse.jface.viewers.ITableLabelProvider;import org.eclipse.jface.viewers.LabelProvider;import org.eclipse.jface.viewers.TableLayout;import org.eclipse.jface.viewers.TableViewer;import org.eclipse.jface.viewers.Viewer;import org.eclipse.swt.SWT;import org.eclipse.swt.custom.TableEditor;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.Event;import org.eclipse.swt.widgets.Label;import org.eclipse.swt.widgets.Listener;import org.eclipse.swt.widgets.Table;import org.eclipse.swt.widgets.TableColumn;import org.eclipse.team.core.IFileTypeInfo;import org.eclipse.team.core.Team;import org.eclipse.team.core.TeamPlugin;import org.eclipse.ui.IWorkbench;import org.eclipse.ui.IWorkbenchPreferencePage;/** * This preference page displays all patterns which determine whether a resource * is to be treated as a text file or not. The page allows the user to add or * remove entries from this table, and change their values from Text to Binary. */public class TextPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {	// Some string constants for display purposes	private static final String TEXT = Policy.bind("TextPreferencePage.text"); //$NON-NLS-1$	private static final String BINARY = Policy.bind("TextPreferencePage.binary"); //$NON-NLS-1$		// The name of the parameter in the file registry	private static final String TYPE = "type"; //$NON-NLS-1$		// The input for the table viewer	private List input;		// Widgets	private TableViewer viewer;	private Button removeButton;	private Button changeButton;		/**	 * TableEntry is a pair of strings representing an entry in the table	 */	class TableEntry {		String ext;		String value;		public TableEntry(String ext, String value) {			this.ext = ext;			this.value = value;		}		public String getExtension() {			return ext;		}		public String getValue() {			return value;		}		public void setValue(String value) {			this.value = value;		}	}	/**	 * TableLabelProvider provides labels for TableEntrys.	 */	class TableLabelProvider extends LabelProvider implements ITableLabelProvider {		public String getColumnText(Object element, int columnIndex) {			TableEntry entry = (TableEntry)element;			switch (columnIndex) {				case 0:					return entry.getExtension();				case 1:					return entry.getValue();				default:					return null;			}		}		public Image getColumnImage(Object element, int columnIndex) {			return null;		}	};			/*	 * Method declared on IWorkbenchPreferencePage	 */	public void init(IWorkbench workbench) {	}	/*	 * @see PreferencePage#createControl	 */	protected Control createContents(Composite ancestor) {		noDefaultAndApplyButton();				Composite parent = new Composite(ancestor, SWT.NULL);		GridLayout layout = new GridLayout();		layout.marginWidth = 0;		layout.marginHeight = 0;		layout.numColumns = 2;		parent.setLayout(layout);			// set F1 help		//WorkbenchHelp.setHelp(parent, new DialogPageContextComputer (this, ITeamHelpContextIds.TEXT_PREFERENCE_PAGE));				Label l1 = new Label(parent, SWT.NULL);		l1.setText(Policy.bind("TextPreferencePage.description")); //$NON-NLS-1$		GridData data = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);		data.horizontalSpan = 2;		l1.setLayoutData(data);				viewer = new TableViewer(parent, SWT.MULTI | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);		Table table = viewer.getTable();		new TableEditor(table);		table.setHeaderVisible(true);		table.setLinesVisible(true);		GridData gd = new GridData(GridData.FILL_BOTH);		gd.widthHint = convertWidthInCharsToPixels(30);		table.setLayoutData(gd);		table.addListener(SWT.Selection, new Listener() {			public void handleEvent(Event e) {				handleSelection();			}		});		// Create the table columns		new TableColumn(table, SWT.NULL);		new TableColumn(table, SWT.NULL);		TableColumn[] columns = table.getColumns();		columns[0].setText(Policy.bind("TextPreferencePage.extension")); //$NON-NLS-1$		columns[1].setText(Policy.bind("TextPreferencePage.contents")); //$NON-NLS-1$				CellEditor editor = new ComboBoxCellEditor(table, new String[] {TEXT, BINARY});		viewer.setCellEditors(new CellEditor[] {null, editor});		viewer.setColumnProperties(new String[] {"extension", "contents"}); //$NON-NLS-1$ //$NON-NLS-2$		viewer.setCellModifier(new ICellModifier() {			public Object getValue(Object element, String property) {				String value = ((TableEntry)element).getValue();				if (value.equals(TEXT)) {					return new Integer(0);				} else {					return new Integer(1);				}			}			public boolean canModify(Object element, String property) {				return true;			}			public void modify(Object element, String property, Object value) {				IStructuredSelection selection = (IStructuredSelection)viewer.getSelection();				TableEntry entry = (TableEntry)selection.getFirstElement();				if (((Integer)value).intValue() == 0) {					entry.setValue(TEXT);				} else {					entry.setValue(BINARY);				}				viewer.refresh(entry);			}		});		viewer.setLabelProvider(new TableLabelProvider());		viewer.setContentProvider(new IStructuredContentProvider() {			public void dispose() {			}			public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {			}			public Object[] getElements(Object inputElement) {				if (inputElement == null) return null;				return ((List)inputElement).toArray();			}		});		viewer.addDoubleClickListener(new IDoubleClickListener() {			public void doubleClick(DoubleClickEvent event) {				ISelection selection = event.getSelection();				if (selection == null || !(selection instanceof IStructuredSelection)) {					return;				}				viewer.editElement(((IStructuredSelection)selection).getFirstElement(), 1);			}		});		TableLayout tl = new TableLayout();		tl.addColumnData(new ColumnWeightData(50));		tl.addColumnData(new ColumnWeightData(50));		table.setLayout(tl);				Composite buttons = new Composite(parent, SWT.NULL);		buttons.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));		buttons.setLayout(new GridLayout());				Button addButton = new Button(buttons, SWT.PUSH);		addButton.setText(Policy.bind("TextPreferencePage.add")); //$NON-NLS-1$		data = new GridData();		data.horizontalAlignment = GridData.FILL;		data.heightHint = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);		data.widthHint = Math.max(widthHint, addButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);		addButton.setLayoutData(data);		addButton.addListener(SWT.Selection, new Listener() {			public void handleEvent(Event e) {				addPattern();			}		});				removeButton= new Button(buttons, SWT.PUSH);		removeButton.setText(Policy.bind("TextPreferencePage.remove")); //$NON-NLS-1$		data = new GridData();		data.horizontalAlignment = GridData.FILL;		data.heightHint = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);		widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);		data.widthHint = Math.max(widthHint, removeButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);		removeButton.setLayoutData(data);		removeButton.setEnabled(false);		removeButton.addListener(SWT.Selection, new Listener() {			public void handleEvent(Event e) {				removePattern();			}		});				changeButton = new Button(buttons, SWT.PUSH);		changeButton.setText(Policy.bind("TextPreferencePage.change")); //$NON-NLS-1$		data = new GridData();		data.horizontalAlignment = GridData.FILL;		data.heightHint = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);		widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);		data.widthHint = Math.max(widthHint, changeButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);		changeButton.setLayoutData(data);		changeButton.setEnabled(false);		changeButton.addListener(SWT.Selection, new Listener() {			public void handleEvent(Event e) {				changePattern();			}		});				fillTable();				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 size = input.size();		String[] extensions = new String[size];		int[] types = new int[size];		int i = 0;				Iterator it = input.iterator();		while (it.hasNext()) {			TableEntry entry = (TableEntry)it.next();			String value = entry.getValue();			if (value.equals(TEXT)) {				types[i] = Team.TEXT;			} else {				types[i] = Team.BINARY;			}			extensions[i] = entry.getExtension();			i++;		}		Team.setAllTypes(extensions, types);		return true;	}	/**	 * Fill the table with the values from the file type registry	 */	private void fillTable() {		this.input = new ArrayList();		IFileTypeInfo[] infos = Team.getAllTypes();		for (int i = 0; i < infos.length; i++) {			IFileTypeInfo info = infos[i];			int type = info.getType();			switch (type) {				case Team.TEXT:					input.add(new TableEntry(info.getExtension(), TEXT));					break;				case Team.BINARY:					input.add(new TableEntry(info.getExtension(), BINARY));					break;			}		}		viewer.setInput(input);	}	/**	 * Add a new item to the table with the default type of Text.	 */	private void addPattern() {		InputDialog dialog = new InputDialog(getShell(), Policy.bind("TextPreferencePage.enterExtensionShort"), Policy.bind("TextPreferencePage.enterExtensionLong"), null, null); //$NON-NLS-1$ //$NON-NLS-2$		dialog.open();		if (dialog.getReturnCode() != InputDialog.OK) return;		String pattern = dialog.getValue();		if (pattern.equals("")) return; //$NON-NLS-1$		// Check if the item already exists		Iterator it = input.iterator();		while (it.hasNext()) {			TableEntry entry = (TableEntry)it.next();			if (entry.getExtension().equals(pattern)) {				MessageDialog.openWarning(getShell(), Policy.bind("TextPreferencePage.extensionExistsShort"), Policy.bind("TextPreferencePage.extensionExistsLong")); //$NON-NLS-1$ //$NON-NLS-2$				return;			}		}		input.add(new TableEntry(pattern, TEXT));		viewer.refresh();	}	/**	 * Remove the selected items from the table	 */	private void removePattern() {		ISelection selection = viewer.getSelection();		if (selection == null || !(selection instanceof IStructuredSelection)) {			return;		}		IStructuredSelection ss = (IStructuredSelection)selection;		Iterator it = ss.iterator();		while (it.hasNext()) {			TableEntry entry = (TableEntry)it.next();			input.remove(entry);		}		viewer.refresh();	}	/**	 * Toggle the selected items' content types	 */	private void changePattern() {		ISelection selection = viewer.getSelection();		if (selection == null || !(selection instanceof IStructuredSelection)) {			return;		}		IStructuredSelection ss = (IStructuredSelection)selection;		Iterator it = ss.iterator();		while (it.hasNext()) {			TableEntry entry = (TableEntry)it.next();			String string = entry.getValue();			if (string.equals(TEXT)) {				entry.setValue(BINARY);			} else {				entry.setValue(TEXT);			}			viewer.refresh(entry);		}	}	/**	 * The table viewer selection has changed. Update the remove and change button enablement.	 */	private void handleSelection() {		boolean empty = viewer.getSelection().isEmpty();		removeButton.setEnabled(!empty);		changeButton.setEnabled(!empty);	}}