Java tutorial
/******************************************************************************* * Copyright (c) 2012, 2015 Wind River Systems, 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: * Wind River Systems - initial API and implementation *******************************************************************************/ package org.eclipse.tcf.te.launch.ui.tabs.filetransfers; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.Map; import org.eclipse.core.runtime.Assert; import org.eclipse.core.runtime.Path; import org.eclipse.debug.core.ILaunchConfiguration; import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.fieldassist.ControlDecoration; import org.eclipse.jface.fieldassist.FieldDecoration; import org.eclipse.jface.fieldassist.FieldDecorationRegistry; import org.eclipse.jface.viewers.CellEditor; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxCellEditor; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.ColumnPixelData; import org.eclipse.jface.viewers.ColumnViewerToolTipSupport; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.EditingSupport; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; 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.Listener; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.tcf.te.launch.core.persistence.filetransfer.FileTransfersPersistenceDelegate; import org.eclipse.tcf.te.launch.core.persistence.launchcontext.LaunchContextsPersistenceDelegate; import org.eclipse.tcf.te.launch.ui.interfaces.ILaunchConfigurationTabFormPart; import org.eclipse.tcf.te.launch.ui.nls.Messages; import org.eclipse.tcf.te.runtime.model.interfaces.IModelNode; import org.eclipse.tcf.te.runtime.services.interfaces.filetransfer.IFileTransferItem; import org.eclipse.tcf.te.ui.forms.parts.AbstractTableSection; import org.eclipse.tcf.te.ui.swt.listener.AbstractDecorationCellPaintListener; import org.eclipse.ui.forms.IManagedForm; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.Section; /** * AbstractFileTransferSection */ public abstract class AbstractFileTransferSection extends AbstractTableSection implements ILaunchConfigurationTabFormPart { protected ControlDecoration controlDecoration; protected IModelNode launchContext = null; protected static final String PROPERTY_VALIDATION_RESULT = "validation_result.transient"; //$NON-NLS-1$ /** * Constructor. * @param form * @param parent */ public AbstractFileTransferSection(IManagedForm form, Composite parent) { super(form, parent, SWT.NONE, new String[] { Messages.FileTransferSection_add_button, Messages.FileTransferSection_edit_button, Messages.FileTransferSection_delete_button, null, Messages.FileTransferSection_up_button, Messages.FileTransferSection_down_button }); } /* (non-Javadoc) * @see org.eclipse.tcf.te.launch.ui.interfaces.ILaunchConfigurationTabFormPart#initializeFrom(org.eclipse.debug.core.ILaunchConfiguration) */ @Override public void initializeFrom(ILaunchConfiguration configuration) { IFileTransferItem[] items = FileTransfersPersistenceDelegate.getFileTransfers(configuration); getTablePart().getViewer().setInput(items); if (items != null && items.length > 0) { ((TableViewer) getTablePart().getViewer()).setSelection(new StructuredSelection(items[0]), true); } launchContext = LaunchContextsPersistenceDelegate.getFirstLaunchContext(configuration); } /* (non-Javadoc) * @see org.eclipse.tcf.te.launch.ui.interfaces.ILaunchConfigurationTabFormPart#performApply(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy) */ @Override public void performApply(ILaunchConfigurationWorkingCopy wc) { FileTransfersPersistenceDelegate.setFileTransfers(wc, (IFileTransferItem[]) getTablePart().getViewer().getInput()); } /* (non-Javadoc) * @see org.eclipse.tcf.te.launch.ui.interfaces.ILaunchConfigurationTabFormPart#isValid(org.eclipse.debug.core.ILaunchConfiguration) */ @Override public boolean isValid(ILaunchConfiguration configuration) { return validateInputList(); } protected abstract boolean validateInputList(); /* (non-Javadoc) * @see org.eclipse.tcf.te.ui.forms.parts.AbstractSection#createClient(org.eclipse.ui.forms.widgets.Section, org.eclipse.ui.forms.widgets.FormToolkit) */ @Override protected void createClient(Section section, FormToolkit toolkit) { Assert.isNotNull(section); Assert.isNotNull(toolkit); section.setText(Messages.FileTransferSection_title); section.setDescription(Messages.FileTransferSection_description); if (section.getParent().getLayout() instanceof GridLayout) { section.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL, SWT.CENTER, true, true)); } Composite client = createClientContainer(section, 2, toolkit); client.setBackground(section.getBackground()); section.setClient(client); createPartControl((Composite) section.getClient(), SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.SINGLE | SWT.FULL_SELECTION, 2, toolkit); // Mark the control update as completed now setIsUpdating(false); } @Override protected TableViewer createTableViewer(Composite parent, int style) { return new CheckboxTableViewer(new Table(parent, style | SWT.CHECK)); } @Override protected void configureTableViewer(TableViewer viewer) { super.configureTableViewer(viewer); ColumnViewerToolTipSupport.enableFor(viewer); final Table table = viewer.getTable(); if (viewer instanceof CheckboxTableViewer) { ((CheckboxTableViewer) viewer).setCheckStateProvider(new FileTransferCheckStateProvider()); ((CheckboxTableViewer) viewer).addCheckStateListener(new ICheckStateListener() { @Override public void checkStateChanged(CheckStateChangedEvent event) { if (event.getElement() instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) event.getElement(); item.setProperty(IFileTransferItem.PROPERTY_ENABLED, event.getChecked()); getManagedForm().dirtyStateChanged(); } } }); } TableViewerColumn tvEnableCol = new TableViewerColumn(viewer, SWT.NONE); final TableColumn colEnable = tvEnableCol.getColumn(); colEnable.setResizable(false); tvEnableCol.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return null; } }); TableViewerColumn tvHostCol = new TableViewerColumn(viewer, SWT.NONE); final TableColumn colHost = tvHostCol.getColumn(); colHost.setText(Messages.FileTransferSection_host_column); colHost.setResizable(true); tvHostCol.setLabelProvider(new ColumnLabelProvider() { @SuppressWarnings("unchecked") @Override public String getToolTipText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; Map<String, String> invalid = (Map<String, String>) item .getProperty(PROPERTY_VALIDATION_RESULT); if (invalid != null && invalid.containsKey(IFileTransferItem.PROPERTY_HOST)) { return invalid.get(IFileTransferItem.PROPERTY_HOST); } String host = item.getStringProperty(IFileTransferItem.PROPERTY_HOST); return host != null ? new Path(host).toOSString() : host; } return super.getText(element); } @Override public String getText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; String host = item.getStringProperty(IFileTransferItem.PROPERTY_HOST); return host != null ? new Path(host).toOSString() : host; } return super.getText(element); } }); TableViewerColumn tvDirCol = new TableViewerColumn(viewer, SWT.NONE); final TableColumn colDir = tvDirCol.getColumn(); colDir.setResizable(false); colDir.setAlignment(SWT.CENTER); tvDirCol.setLabelProvider(new ColumnLabelProvider() { @Override public String getToolTipText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; switch (item.getIntProperty(IFileTransferItem.PROPERTY_DIRECTION)) { case IFileTransferItem.TARGET_TO_HOST: return Messages.FileTransferSection_toHost_tooltip; default: return Messages.FileTransferSection_toTarget_tooltip; } } return super.getToolTipText(element); } @Override public String getText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; switch (item.getIntProperty(IFileTransferItem.PROPERTY_DIRECTION)) { case IFileTransferItem.TARGET_TO_HOST: return Messages.FileTransferSection_toHost_text; default: return Messages.FileTransferSection_toTarget_text; } } return super.getText(element); } }); tvDirCol.setEditingSupport(new EditingSupport(tvDirCol.getViewer()) { @Override protected void setValue(Object element, Object value) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; item.setProperty(IFileTransferItem.PROPERTY_DIRECTION, Boolean.parseBoolean(value.toString()) ? IFileTransferItem.HOST_TO_TARGET : IFileTransferItem.TARGET_TO_HOST); getManagedForm().dirtyStateChanged(); getViewer().refresh(); } } @Override protected Object getValue(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; return Boolean.valueOf(item.getIntProperty( IFileTransferItem.PROPERTY_DIRECTION) != IFileTransferItem.TARGET_TO_HOST); } return null; } @Override protected CellEditor getCellEditor(Object element) { return new CheckboxCellEditor(); } @Override protected boolean canEdit(Object element) { return true; } }); TableViewerColumn tvTargetCol = new TableViewerColumn(viewer, SWT.NONE); final TableColumn colTarget = tvTargetCol.getColumn(); colTarget.setText(Messages.FileTransferSection_target_column); colTarget.setResizable(true); tvTargetCol.setLabelProvider(new ColumnLabelProvider() { @SuppressWarnings("unchecked") @Override public String getToolTipText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; Map<String, String> invalid = (Map<String, String>) item .getProperty(PROPERTY_VALIDATION_RESULT); if (invalid != null && invalid.containsKey(IFileTransferItem.PROPERTY_TARGET_STRING)) { return invalid.get(IFileTransferItem.PROPERTY_TARGET_STRING); } return item.getStringProperty(IFileTransferItem.PROPERTY_TARGET_STRING); } return super.getText(element); } @Override public String getText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; return item.getStringProperty(IFileTransferItem.PROPERTY_TARGET_STRING); } return super.getText(element); } }); TableViewerColumn tvOptionCol = new TableViewerColumn(viewer, SWT.NONE); final TableColumn colOption = tvOptionCol.getColumn(); colOption.setText(Messages.FileTransferSection_options_column); colOption.setResizable(true); tvOptionCol.setLabelProvider(new ColumnLabelProvider() { @Override public String getToolTipText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; return item.getStringProperty(IFileTransferItem.PROPERTY_OPTIONS); } return super.getText(element); } @Override public String getText(Object element) { if (element instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) element; return item.getStringProperty(IFileTransferItem.PROPERTY_OPTIONS); } return super.getText(element); } }); TableLayout tableLayout = new TableLayout(); tableLayout.addColumnData(new ColumnPixelData(30, true)); tableLayout.addColumnData(new ColumnPixelData(200, true)); tableLayout.addColumnData(new ColumnPixelData(30, true)); tableLayout.addColumnData(new ColumnPixelData(200, true)); tableLayout.addColumnData(new ColumnPixelData(100, true)); table.setLayout(tableLayout); GridData data = new GridData(GridData.FILL_BOTH | GridData.VERTICAL_ALIGN_BEGINNING); table.setLayoutData(data); table.setHeaderVisible(true); table.setLinesVisible(true); table.addListener(SWT.Resize, new Listener() { @Override public void handleEvent(Event event) { int width = table.getSize().x - 4 - colEnable.getWidth() - colHost.getWidth() - colDir.getWidth() - colTarget.getWidth(); colOption.setWidth(Math.max(width, 100)); } }); colHost.addListener(SWT.Resize, new Listener() { @Override public void handleEvent(Event event) { int colWidth = colHost.getWidth(); if (colWidth < 100) { event.doit = false; colHost.setWidth(100); colWidth = 100; } int width = table.getSize().x - 4 - colWidth - colEnable.getWidth() - colDir.getWidth() - colTarget.getWidth(); colOption.setWidth(Math.max(width, 100)); } }); colTarget.addListener(SWT.Resize, new Listener() { @Override public void handleEvent(Event event) { int colWidth = colTarget.getWidth(); if (colWidth < 100) { event.doit = false; colTarget.setWidth(100); colWidth = 100; } int width = table.getSize().x - 4 - colWidth - colEnable.getWidth() - colHost.getWidth() - colDir.getWidth(); colOption.setWidth(Math.max(width, 100)); } }); @SuppressWarnings("unused") AbstractDecorationCellPaintListener cpl = new AbstractDecorationCellPaintListener(table, 1, 3) { @SuppressWarnings("unchecked") @Override protected int getDecorationState(Object data, int columnIndex) { if (data instanceof IFileTransferItem) { IFileTransferItem item = (IFileTransferItem) data; if (item.getBooleanProperty(IFileTransferItem.PROPERTY_ENABLED)) { Map<String, String> invalid = (Map<String, String>) item .getProperty(PROPERTY_VALIDATION_RESULT); if (invalid != null) { switch (columnIndex) { case 1: if (invalid.containsKey(IFileTransferItem.PROPERTY_HOST)) { return STATE_ERROR; } break; case 3: if (invalid.containsKey(IFileTransferItem.PROPERTY_TARGET_STRING)) { return STATE_ERROR; } break; } } } } return STATE_NONE; } }; viewer.setContentProvider(new FileTransferContentProvider()); viewer.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { initializeButtonsEnablement(); } }); doCreateControlDecoration(table); configureControlDecoration(getControlDecoration()); } /** * Creates a new instance of a {@link ControlDecoration} object associated with * the given control. The method is called after the control has been created. * * @param control The control. Must not be <code>null</code>. * @return The control decoration object instance. */ public ControlDecoration doCreateControlDecoration(Control control) { Assert.isNotNull(control); controlDecoration = new ControlDecoration(control, SWT.TOP | SWT.LEFT); return controlDecoration; } /** * Returns the control decoration. * * @return The control decoration instance or <code>null</code> if not yet created. */ public final ControlDecoration getControlDecoration() { return controlDecoration; } /** * Configure the given control decoration. * * @param decoration The control decoration. Must not be <code>null</code>. */ protected void configureControlDecoration(ControlDecoration decoration) { Assert.isNotNull(decoration); decoration.setShowOnlyOnFocus(false); } /** * Updates the control decoration to represent the given message and message type. * If the message is <code>null</code> or the message type is IMessageProvider.NONE, * no decoration will be shown. * * @param message The message. * @param messageType The message type. */ public void updateControlDecoration(String message, int messageType) { if (getControlDecoration() != null) { // The description is the same as the message getControlDecoration().setDescriptionText(message); // The icon depends on the message type FieldDecorationRegistry registry = FieldDecorationRegistry.getDefault(); // Determine the id of the decoration to show String decorationId = FieldDecorationRegistry.DEC_INFORMATION; if (messageType == IMessageProvider.ERROR) { decorationId = FieldDecorationRegistry.DEC_ERROR; } else if (messageType == IMessageProvider.WARNING) { decorationId = FieldDecorationRegistry.DEC_WARNING; } // Get the field decoration FieldDecoration fieldDeco = registry.getFieldDecoration(decorationId); if (fieldDeco != null) { getControlDecoration().setImage(fieldDeco.getImage()); } if (message == null || messageType == IMessageProvider.NONE) { getControlDecoration().hide(); } else { getControlDecoration().show(); } } } protected List<IFileTransferItem> getInputList() { return new ArrayList<IFileTransferItem>( Arrays.asList((IFileTransferItem[]) getTablePart().getViewer().getInput())); } protected void setInputList(List<IFileTransferItem> list) { getTablePart().getViewer().setInput(list.toArray(new IFileTransferItem[list.size()])); } @Override public void doubleClick(DoubleClickEvent event) { onButtonEditClick(); } @Override protected void onButtonSelected(Button button) { int selIndex = ((TableViewer) getTablePart().getViewer()).getTable().getSelectionIndex(); List<IFileTransferItem> list = getInputList(); switch (((Integer) button.getData()).intValue()) { case 0: // Add onButtonAddClick(); break; case 1: // Edit onButtonEditClick(); break; case 2: // Delete list.remove(selIndex); setInputList(list); if (!list.isEmpty()) { ((TableViewer) getTablePart().getViewer()).setSelection( new StructuredSelection(list.get(selIndex < list.size() ? selIndex : list.size() - 1)), true); } break; case 4: // Up list.add(selIndex - 1, list.remove(selIndex)); setInputList(list); ((TableViewer) getTablePart().getViewer()).setSelection(new StructuredSelection(list.get(selIndex - 1)), true); break; case 5: // Down list.add(selIndex + 1, list.remove(selIndex)); setInputList(list); ((TableViewer) getTablePart().getViewer()).setSelection(new StructuredSelection(list.get(selIndex + 1)), true); break; } validateInputList(); getManagedForm().dirtyStateChanged(); } protected abstract void onButtonAddClick(); protected abstract void onButtonEditClick(); /* (non-Javadoc) * @see org.eclipse.tcf.te.ui.forms.parts.AbstractTableSection#initializeButtonsEnablement() */ @Override protected void initializeButtonsEnablement() { ISelection selection = ((TableViewer) getTablePart().getViewer()).getSelection(); boolean singleSelection = selection instanceof IStructuredSelection && ((IStructuredSelection) selection).size() == 1; int selIndex = ((TableViewer) getTablePart().getViewer()).getTable().getSelectionIndex(); int count = ((TableViewer) getTablePart().getViewer()).getTable().getItemCount(); getTablePart().getButton(0).setEnabled(getTablePart().isEnabled()); getTablePart().getButton(1).setEnabled(getTablePart().isEnabled() && singleSelection); getTablePart().getButton(2).setEnabled(getTablePart().isEnabled() && singleSelection); getTablePart().getButton(4).setEnabled(getTablePart().isEnabled() && singleSelection && selIndex > 0); getTablePart().getButton(5) .setEnabled(getTablePart().isEnabled() && singleSelection && selIndex < count - 1); } }