Java tutorial
/* DemoSelector.java (c) 2012-2013 Edward Swartz 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 */ package v9t9.gui.client.swt.shells; import java.io.File; import java.io.IOException; import java.net.URI; import java.text.DateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.resource.FontDescriptor; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.IElementComparer; import org.eclipse.jface.viewers.IOpenListener; import org.eclipse.jface.viewers.ISelectionChangedListener; 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.ITreeContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.OpenEvent; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.StructuredViewer; import org.eclipse.jface.viewers.StyledCellLabelProvider; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerCell; import org.eclipse.jface.viewers.ViewerColumn; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ControlAdapter; import org.eclipse.swt.events.ControlEvent; import org.eclipse.swt.events.DisposeEvent; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.FocusListener; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.MenuDetectEvent; import org.eclipse.swt.events.MenuDetectListener; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Item; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.MenuItem; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeColumn; import org.eclipse.swt.widgets.TreeItem; import org.ejs.gui.common.FontUtils; import org.ejs.gui.common.SwtDialogUtils; import v9t9.common.demos.IDemo; import v9t9.common.demos.IDemoHandler; import v9t9.common.demos.IDemoManager; import v9t9.common.events.NotifyEvent.Level; import v9t9.common.events.NotifyException; import v9t9.common.machine.IMachine; import v9t9.common.settings.Settings; import v9t9.gui.EmulatorGuiData; import v9t9.gui.client.swt.SwtWindow; import v9t9.gui.client.swt.bars.ImageCanvas; import ejs.base.properties.IProperty; import ejs.base.settings.ISettingSection; /** * @author ejs * */ public class DemoSelector extends Composite { public static final String DEMO_SELECTOR_TOOL_ID = "demo.selector"; private static final String SECTION_DEMO_PLAYER = "DemoPlayer"; private static final String SORT_ENABLED = "SortEnabled"; private static final String SORT_DIRECTION = "SortDirection"; private static final String SORT_COLUMN = "SortColumn"; private static String NAME_PROPERTY = "name"; private static String DESCR_PROPERTY = "descr"; private static String DATE_PROPERTY = "date"; private static String[] NAME_PROPERTY_ARRAY = { NAME_PROPERTY, DESCR_PROPERTY, DATE_PROPERTY }; static final int NAME_COLUMN = 0; static final int DESCR_COLUMN = 1; static final int DATE_COLUMN = 2; static final int FILE_COLUMN = 3; protected static final int TEXT_MARGIN = 4; private TreeViewer viewer; private TreeColumn nameColumn; private TreeColumn dateColumn; private TreeColumn descrColumn; private IDemo selectedDemo; private Composite buttonBar; private final IMachine machine; private Button playButton; private Font nameColumnFont; private IDemoHandler demoHandler; private Text filterText; private String lastFilter; private boolean sortDemos = true; private int sortDirection = 1; private int sortColumn = NAME_COLUMN; private IDemoManager demoManager; private final class DescrViewerColumnLabelProvider extends StyledCellLabelProvider { @Override public void update(ViewerCell cell) { if (cell.getElement() instanceof IDemo && cell.getColumnIndex() == DESCR_COLUMN) { String string = (String) ((IDemo) cell.getElement()).getDescription(); Rectangle bounds = cell.getBounds(); GC gc = new GC(getDisplay()); StringBuilder sb = new StringBuilder(); String[] words = string.split(" ", 0); int curLineSize = 0; int index = 0; while (index < words.length) { Point extent = gc.textExtent(words[index]); if (curLineSize > 0 && curLineSize + extent.x >= bounds.width) { sb.append('\n'); curLineSize = 0; } curLineSize += extent.x; sb.append(words[index]); sb.append(' '); index++; } cell.setText(sb.toString()); gc.dispose(); } } } class FilteredSearchFilter extends ViewerFilter { /* (non-Javadoc) * @see org.eclipse.jface.viewers.ViewerFilter#isFilterProperty(java.lang.Object, java.lang.String) */ @Override public boolean isFilterProperty(Object element, String property) { return NAME_PROPERTY.equals(property); } @Override public boolean select(Viewer viewer, Object parentElement, Object element) { if (element.getClass().equals(Object.class)) return true; if (lastFilter != null && element instanceof IDemo) { return ((IDemo) element).getName().toLowerCase().contains(lastFilter.toLowerCase()); } return true; } } private ViewerFilter filteredSearchFilter = new FilteredSearchFilter(); private ISettingSection dialogSettings; private Button browseButton; private IProperty recordedPathProperty; public DemoSelector(Shell shell, IMachine machine_, IDemoManager demoManager_, SwtWindow window_) { super(shell, SWT.NONE); this.demoHandler = machine_.getDemoHandler(); this.demoManager = demoManager_; this.machine = machine_; dialogSettings = machine.getSettings().getMachineSettings().getHistorySettings() .findOrAddSection(SECTION_DEMO_PLAYER); demoManager.reload(); recordedPathProperty = Settings.get(machine, IDemoManager.settingRecordedDemosPath); shell.setText("Demo Player"); GridLayoutFactory.fillDefaults().margins(6, 6).applyTo(this); createSearchFilter(); viewer = createTable(); GridDataFactory.fillDefaults().grab(true, true).applyTo(viewer.getControl()); buttonBar = new Composite(this, SWT.NONE); GridLayoutFactory.fillDefaults().margins(4, 4).numColumns(3).equalWidth(false).applyTo(buttonBar); GridDataFactory.fillDefaults().grab(true, false).applyTo(buttonBar); browseButton = new Button(buttonBar, SWT.PUSH); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).hint(128, -1).applyTo(browseButton); browseButton.setText("Browse..."); browseButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { String filename = SwtDialogUtils.openFileSelectionDialog(getShell(), "Select demo file", selectedDemo != null && selectedDemo.getURI().getScheme().equals("file") ? new File(selectedDemo.getURI()).getParent() : null, null, false, IDemoManager.DEMO_EXTENSIONS); if (filename != null) { File playFile = new File(filename); String parent = playFile.getParentFile().toURI().toString(); IProperty searchPath = Settings.get(machine, IDemoManager.settingUserDemosPath); if (!searchPath.getList().contains(parent)) { searchPath.getList().add(parent); searchPath.firePropertyChange(); demoManager.reload(); viewer.refresh(); } if (!isDisposed()) getShell().dispose(); try { demoHandler.startPlayback(playFile.toURI()); } catch (IOException ex) { machine.getEventNotifier().notifyEvent(null, Level.ERROR, ex.getMessage()); } catch (NotifyException ex) { machine.getEventNotifier().notifyEvent(ex.getEvent()); } } } }); browseButton.setEnabled(true); Label filler = new Label(buttonBar, SWT.NONE); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true).applyTo(filler); playButton = new Button(buttonBar, SWT.PUSH); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).hint(128, -1).applyTo(playButton); playButton.setText("Play demo"); playButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { playDemo(); } }); playButton.setEnabled(false); addDisposeListener(new DisposeListener() { @Override public void widgetDisposed(DisposeEvent e) { } }); initFilter(lastFilter); hookActions(); //ViewerColumn nameViewerColumn = new TreeViewerColumn(viewer, nameColumn); //nameViewerColumn.setLabelProvider(new NameViewerColumnLabelProvider()); getDisplay().asyncExec(new Runnable() { public void run() { restoreSelection(); } }); } /** * */ protected void restoreSelection() { selectedDemo = null; URI last = null; if ((last = demoHandler.getPlaybackURI()) == null) last = demoHandler.getRecordingURI(); if (last != null) { for (IDemo demo : demoManager.getDemos()) { if (demo.getURI().equals(last)) { selectedDemo = demo; // viewer.setSelection(new TreeSelection( // new TreePath(new Object[] { selectedDemo })), // true); viewer.setSelection(new StructuredSelection(selectedDemo), true); } } } } /** * */ private void createSearchFilter() { Composite comp = new Composite(this, SWT.NONE); GridLayoutFactory.fillDefaults().margins(4, 4).numColumns(2).equalWidth(false).applyTo(comp); GridDataFactory.fillDefaults().grab(true, false).applyTo(comp); filterText = new Text(comp, SWT.BORDER); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, false).applyTo(filterText); filterText.addFocusListener(new FocusListener() { @Override public void focusLost(FocusEvent e) { filterText.selectAll(); } @Override public void focusGained(FocusEvent e) { filterText.selectAll(); } }); final Button clearButton = new Button(comp, SWT.PUSH | SWT.NO_FOCUS); clearButton.setImage(EmulatorGuiData.loadImage(getDisplay(), "icons/icon_search_clear.png")); GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(false, false).applyTo(clearButton); clearButton.addSelectionListener(new SelectionAdapter() { /* (non-Javadoc) * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent) */ @Override public void widgetSelected(SelectionEvent e) { if (lastFilter != null && lastFilter.length() > 0) { initFilter(null); filterText.setFocus(); viewer.setSelection(new StructuredSelection(demoManager.getDemos()), true); } } }); } protected void refreshFilters() { viewer.setFilters(new ViewerFilter[] { filteredSearchFilter }); } protected void initFilter(String text) { if (text == null || text.length() == 0) { filterText.setText("Search..."); filterText.setForeground(getDisplay().getSystemColor(SWT.COLOR_TITLE_INACTIVE_FOREGROUND)); } else { String curText = filterText.getText(); if (curText.equals("Search...") || curText.isEmpty()) { filterText.setText(text); filterText.selectAll(); filterText.setForeground(null); } } refreshFilters(); updateFilter(text); getDisplay().asyncExec(new Runnable() { public void run() { if (viewer.getControl().isDisposed()) return; int width = viewer.getControl().getSize().x; if (!nameColumn.isDisposed()) nameColumn.setWidth(width / 3); if (!dateColumn.isDisposed()) dateColumn.setWidth(width / 4); if (!descrColumn.isDisposed()) { descrColumn.setWidth(width / 4); viewer.refresh(); } final IDemo[] demos = demoManager.getDemos(); viewer.setSelection(new StructuredSelection(demos), true); if (selectedDemo != null) { SwtDialogUtils.revealOncePopulated(machine.getMachineTimer(), 500, viewer, selectedDemo); } } }); } /** * @param text */ protected void updateFilter(final String text) { if (text == null || text.isEmpty()) { lastFilter = null; } else { lastFilter = text; } viewer.refresh(); viewer.expandToLevel(2); } /** * @param demoManager */ protected TreeViewer createTable() { final TreeViewer viewer = new TreeViewer(this, SWT.READ_ONLY | SWT.BORDER | SWT.FULL_SELECTION); viewer.setComparer(new IElementComparer() { @Override public int hashCode(Object element) { return System.identityHashCode(element); } @Override public boolean equals(Object a, Object b) { return a == b || a.equals(b); } }); Tree tree = viewer.getTree(); tree.setHeaderVisible(true); tree.setLinesVisible(true); GridDataFactory.fillDefaults().grab(true, true).applyTo(tree); FontDescriptor desc = FontUtils .getFontDescriptor(JFaceResources.getFontRegistry().getBold(JFaceResources.DIALOG_FONT)); nameColumnFont = desc.createFont(getDisplay()); nameColumn = new TreeColumn(tree, SWT.LEFT); nameColumn.setText("Name"); descrColumn = new TreeColumn(tree, SWT.LEFT); descrColumn.setText("Description"); dateColumn = new TreeColumn(tree, SWT.LEFT); dateColumn.setText("Date"); viewer.setContentProvider(new DemoTreeContentProvider()); viewer.setLabelProvider(new DemoTreeLabelProvider()); viewer.setColumnProperties(NAME_PROPERTY_ARRAY); viewer.setComparator(new ViewerComparator() { /* (non-Javadoc) * @see org.eclipse.jface.viewers.ViewerComparator#isSorterProperty(java.lang.Object, java.lang.String) */ @Override public boolean isSorterProperty(Object element, String property) { return NAME_PROPERTY_ARRAY[sortColumn].equals(property); } @Override public int compare(Viewer viewer, Object e1, Object e2) { if (!sortDemos) return 0; if (e1 instanceof IDemo && e2 instanceof IDemo) { IDemo dem1 = (IDemo) e1; IDemo dem2 = (IDemo) e2; boolean l1 = isDemoLoadable(dem1); boolean l2 = isDemoLoadable(dem2); if (l1 == l2) { int diff; if (sortColumn == NAME_COLUMN) { diff = dem1.getName().toLowerCase().compareTo(dem2.getName().toLowerCase()); } else if (sortColumn == DATE_COLUMN) { try { long d1 = demoManager.getDemoLocator().getLastModified(dem1.getURI()); long d2 = demoManager.getDemoLocator().getLastModified(dem2.getURI()); diff = (int) Math.signum(d1 - d2); } catch (IOException e) { diff = dem1.getName().toLowerCase().compareTo(dem2.getName().toLowerCase()); } } else /*if (sortColumn == DESCR_COLUMN)*/ { diff = dem1.getDescription().toLowerCase() .compareTo(dem2.getDescription().toLowerCase()); } return sortDirection * diff; } else if (l1) { return -1; } else { return 1; } } else if (e1 instanceof IDemo) { return 1; } /* else if (e2 instanceof IDemo) */ { return -1; } } }); addIterativeSearch(viewer, tree); sortDemos = dialogSettings.getBoolean(SORT_ENABLED); sortDirection = dialogSettings.getInt(SORT_DIRECTION); sortColumn = dialogSettings.getInt(SORT_COLUMN); viewer.setInput(new Object()); tree.addKeyListener(new KeyAdapter() { /* (non-Javadoc) * @see org.eclipse.swt.events.KeyAdapter#keyPressed(org.eclipse.swt.events.KeyEvent) */ @Override public void keyPressed(KeyEvent e) { if (e.keyCode == '\r' || e.keyCode == '\n') { playDemo(); e.doit = false; } } }); final ViewerColumn descrViewerColumn = new TreeViewerColumn(viewer, descrColumn); final DescrViewerColumnLabelProvider descrLabelProvider = new DescrViewerColumnLabelProvider(); descrViewerColumn.setLabelProvider(descrLabelProvider); descrColumn.addControlListener(new ControlAdapter() { @Override public void controlResized(ControlEvent e) { getDisplay().asyncExec(new Runnable() { public void run() { viewer.refresh(); } }); } }); addDisposeListener(new DisposeListener() { @Override public void widgetDisposed(DisposeEvent e) { if (nameColumnFont != null) nameColumnFont.dispose(); } }); return viewer; } /** * @param viewer * @param control * @param realModules */ protected void addIterativeSearch(final StructuredViewer viewer, Control control) { control.addKeyListener(new KeyAdapter() { StringBuilder search = new StringBuilder(); int index = 0; IDemo[] demos; @Override public void keyPressed(KeyEvent e) { int direction = 1; if (demos == null) { demos = demoManager.getDemos(); } if (e.keyCode == '\b') { search.setLength(0); index = 0; e.doit = e.keyCode != '\b'; demos = demoManager.getDemos(); } else if (e.keyCode == SWT.ARROW_DOWN) { direction = 1; e.doit = false; } else if (e.keyCode == SWT.ARROW_UP) { direction = -1; e.doit = false; } else if (e.character >= 32 && e.character < 127) { search.append(e.character); e.doit = false; } else { return; } int end = (index + demos.length - 1) % demos.length; String searchString = search.toString().toLowerCase(); if (searchString.length() > 0) { for (int i = index; i != end; i = (i + 1) % demos.length) { IDemo m = demos[i]; if (m.getName().toLowerCase().contains(searchString)) { viewer.setSelection(new StructuredSelection(m), true); viewer.reveal(m); index = i; break; } } } else { int count = demos.length; if (getDisplay().getFocusControl() != filterText) { // not yet in tree index += direction; } do { index = (index + demos.length) % demos.length; IDemo m = demos[index]; viewer.setSelection(new StructuredSelection(m), true); viewer.reveal(m); if (viewer.testFindItem(m) != null) // TODO: cleaner way to see what's not filtered break; index += direction; } while (count-- > 0); } } }); } class SortHandler extends SelectionAdapter { private final int column; public SortHandler(int column) { this.column = column; } @Override public void widgetSelected(SelectionEvent e) { e.doit = false; if (!sortDemos || sortColumn != column) { sortDemos = true; sortDirection = 1; sortColumn = column; } else { if (sortDirection == 1) { sortDirection = -1; } else { sortDemos = false; } } dialogSettings.put(SORT_ENABLED, sortDemos); dialogSettings.put(SORT_DIRECTION, sortDirection); dialogSettings.put(SORT_COLUMN, sortColumn); viewer.refresh(); } } /** * */ protected void hookActions() { nameColumn.addSelectionListener(new SortHandler(NAME_COLUMN)); dateColumn.addSelectionListener(new SortHandler(DATE_COLUMN)); descrColumn.addSelectionListener(new SortHandler(DESCR_COLUMN)); viewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { Object obj = ((IStructuredSelection) event.getSelection()).getFirstElement(); if (obj instanceof String) { selectedDemo = null; playButton.setEnabled(true); } else if (obj instanceof IDemo) { selectedDemo = (IDemo) obj; playButton.setEnabled(true); } else { playButton.setEnabled(false); } } }); viewer.addOpenListener(new IOpenListener() { public void open(OpenEvent event) { Object obj = ((IStructuredSelection) event.getSelection()).getFirstElement(); if (obj instanceof String) { selectedDemo = null; if (!playButton.isDisposed()) playButton.setEnabled(true); playDemo(); } else if (obj instanceof IDemo) { selectedDemo = (IDemo) obj; if (!playButton.isDisposed()) playButton.setEnabled(true); playDemo(); } else { if (!playButton.isDisposed()) playButton.setEnabled(false); } } }); viewer.getControl().addMenuDetectListener(new MenuDetectListener() { @Override public void menuDetected(MenuDetectEvent e) { final Item item = viewer.getTree().getItem(viewer.getControl().toControl(new Point(e.x, e.y))); if (item == null) return; Menu menu = new Menu(viewer.getControl()); if (item.getData() instanceof URI) { final URI uri = (URI) item.getData(); final String filePathStr = uri.getScheme().equals("file") ? new File(uri.getPath()).getAbsolutePath() : null; final MenuItem dlitem; dlitem = new MenuItem(menu, SWT.NONE); dlitem.setText("Remove directory from search paths"); dlitem.addSelectionListener(new SelectionAdapter() { @SuppressWarnings("unchecked") @Override public void widgetSelected(SelectionEvent e) { for (IProperty prop : demoManager.getDemoLocator().getSearchPathProperties()) { if (prop.getValue() instanceof List<?>) { List<String> list = (List<String>) prop.getValue(); if (list.remove(uri.toString()) || list.remove(filePathStr)) { prop.firePropertyChange(); viewer.refresh(); } } } } }); if (recordedPathProperty.getString().equals(uri.toString())) { dlitem.setEnabled(false); } } else if (item.getData() instanceof IDemo) { final IDemo demo = (IDemo) item.getData(); if (demo.getURI().getScheme().equals("file")) { final MenuItem dlitem; dlitem = new MenuItem(menu, SWT.NONE); dlitem.setText("Delete entry from disk"); dlitem.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { boolean ok = MessageDialog.openQuestion(getShell(), "Delete?", "Are you sure you want to delete:\n" + demo.getURI()); if (!ok) return; if (new File(demo.getURI()).delete()) { demoManager.removeDemo(demo); viewer.remove(demo); } else { MessageDialog.openError(getShell(), "Delete failed", "Could not delete the demo from disk:\n" + demo.getURI()); } } }); } } if (menu.getItemCount() == 0) { menu.dispose(); return; } menu.setLocation(e.x, e.y); menu.setVisible(true); while (!menu.isDisposed() && menu.isVisible()) { if (!getDisplay().readAndDispatch()) getDisplay().sleep(); } } }); filterText.addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent e) { if (viewer.getControl().isDisposed()) return; if (lastFilter == null) { filterText.setForeground(null); lastFilter = ""; filterText.setText(""); } if (e.keyCode == SWT.ARROW_DOWN) { viewer.getControl().setFocus(); } if (e.keyCode == '\r') { viewer.getControl().setFocus(); e.doit = false; if (viewer.getTree().getItemCount() > 0 && selectedDemo != null) { playDemo(); } } } }); filterText.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent e) { updateFilter(filterText.getText()); if (lastFilter != null && viewer.getTree().getItemCount() > 0) { TreeItem[] items = viewer.getTree().getItems(); boolean first = true; for (TreeItem item : items) { Object value = item.getData(); if (value instanceof IDemo) { if (first) { viewer.setSelection(new StructuredSelection(value), true); first = false; } viewer.expandToLevel(value, TreeViewer.ALL_LEVELS); break; } } } } }); } /** * */ protected void playDemo() { try { demoHandler.startPlayback(selectedDemo.getURI()); if (!isDisposed()) getShell().dispose(); } catch (NotifyException e) { machine.notifyEvent(e.getEvent()); } catch (Throwable e) { e.printStackTrace(); } } public Viewer getViewer() { return viewer; } public IDemo getSelectedDemo() { return selectedDemo; } class DemoTreeContentProvider implements ITreeContentProvider { @Override public void dispose() { } @Override public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#getElements(java.lang.Object) */ @Override public Object[] getElements(Object inputElement) { return demoManager.getDemoLocator().getSearchURIs(); } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) */ @Override public Object[] getChildren(Object parentElement) { if (parentElement instanceof URI) { List<IDemo> demos = new ArrayList<IDemo>(); for (IDemo demo : demoManager.getDemos()) { if (demo.getParentURI().equals(parentElement)) { demos.add(demo); } } return (IDemo[]) demos.toArray(new IDemo[demos.size()]); } return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) */ @Override public Object getParent(Object element) { if (element instanceof IDemo) return ((IDemo) element).getParentURI(); return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) */ @Override public boolean hasChildren(Object element) { return element instanceof URI; } } class DemoTreeLabelProvider extends LabelProvider implements ITableLabelProvider, ITableColorProvider, ITableFontProvider { /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int) */ public Image getColumnImage(Object element, int columnIndex) { return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int) */ public String getColumnText(Object element, int columnIndex) { if (element instanceof String && columnIndex == NAME_COLUMN) return element.toString(); if (element instanceof URI && columnIndex == NAME_COLUMN) { if (element instanceof URI && element.toString().equals(recordedPathProperty.getString())) { return element.toString() + " (recording path)"; } return element.toString(); } if (!(element instanceof IDemo)) { return null; } IDemo demo = (IDemo) element; switch (columnIndex) { case NAME_COLUMN: return demo.getName(); case DATE_COLUMN: { try { Date date = new Date(demoManager.getDemoLocator().getLastModified(demo.getURI())); Calendar cal = Calendar.getInstance(); cal.add(Calendar.DAY_OF_MONTH, -7); if (cal.getTime().compareTo(date) >= 0) return DateFormat.getDateInstance().format(date); else return DateFormat.getDateTimeInstance().format(date); } catch (IOException e) { return ""; } } case DESCR_COLUMN: return demo.getDescription(); case FILE_COLUMN: return demo.getURI().toString(); } return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITableColorProvider#getForeground(java.lang.Object, int) */ @Override public Color getForeground(Object element, int columnIndex) { if (element instanceof URI && element.toString().equals(recordedPathProperty.getString())) { return getDisplay().getSystemColor(SWT.COLOR_BLUE); } if (!(element instanceof IDemo)) return null; IDemo demo = (IDemo) element; if (!isDemoLoadable(demo)) return getDisplay().getSystemColor(SWT.COLOR_TITLE_INACTIVE_FOREGROUND); return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITableColorProvider#getBackground(java.lang.Object, int) */ @Override public Color getBackground(Object element, int columnIndex) { return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ITableFontProvider#getFont(java.lang.Object, int) */ @Override public Font getFont(Object element, int columnIndex) { if (columnIndex == NAME_COLUMN) return nameColumnFont; return null; } } /** * @param machine2 * @param buttonBar2 * @return */ public static IToolShellFactory getToolShellFactory(final IMachine machine, final ImageCanvas buttonBar, final SwtWindow window) { return new IToolShellFactory() { Behavior behavior = new Behavior(); { behavior.boundsPref = "DemoWindowBounds"; behavior.centering = Centering.OUTSIDE; behavior.dismissOnClickOutside = false; } public Control createContents(Shell shell) { return new DemoSelector(shell, machine, machine.getDemoManager(), window); } public Behavior getBehavior() { return behavior; } }; } protected boolean isDemoLoadable(final IDemo demo) { if (demo == null) return false; return demoHandler.isDemoSupported(demo.getURI()); } /** * @return the machine */ public IMachine getMachine() { return machine; } }