| /******************************************************************************* |
| * Copyright (c) 2004, 2015 Tasktop Technologies 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: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.commons.workbench; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.jface.layout.GridDataFactory; |
| import org.eclipse.mylyn.internal.commons.workbench.CommonsWorkbenchPlugin; |
| import org.eclipse.mylyn.internal.commons.workbench.Messages; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.ControlAdapter; |
| import org.eclipse.swt.events.ControlEvent; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.ui.dialogs.PatternFilter; |
| import org.eclipse.ui.progress.WorkbenchJob; |
| |
| /** |
| * A filtered tree with additional controls below the filter text field. |
| * |
| * @author Mik Kersten |
| * @since 3.7 |
| */ |
| @SuppressWarnings("deprecation") |
| public abstract class AbstractFilteredTree extends EnhancedFilteredTree { |
| |
| private static final int FILTER_WIDTH_MIN = 60; |
| |
| private static final int FILTER_WIDTH_MAX = 300; |
| |
| private static final float FILTER_WIDTH_RATIO = 0.35f; |
| |
| public static final String LABEL_FIND = Messages.AbstractFilteredTree_Find; |
| |
| private WorkbenchJob refreshJob; |
| |
| private AdaptiveRefreshPolicy refreshPolicy; |
| |
| private Composite progressComposite; |
| |
| private Composite searchComposite; |
| |
| private boolean showProgress = false; |
| |
| private String previousFilterText; |
| |
| /** |
| * XXX: using reflection to gain access |
| * |
| * @param parent |
| * @param treeStyle |
| * @param filter |
| */ |
| public AbstractFilteredTree(Composite parent, int treeStyle, PatternFilter filter) { |
| super(parent, treeStyle, filter, true); |
| try { |
| // the super constructor calls doCreateRefreshJob() which assigns refreshJob |
| refreshPolicy = new AdaptiveRefreshPolicy(refreshJob); |
| |
| } catch (Exception e) { |
| CommonsWorkbenchPlugin.getDefault().getLog().log( |
| new Status(IStatus.ERROR, CommonsWorkbenchPlugin.ID_PLUGIN, "Could not get refresh job", e)); //$NON-NLS-1$ |
| } |
| setInitialText(LABEL_FIND); |
| } |
| |
| @Override |
| protected WorkbenchJob doCreateRefreshJob() { |
| this.refreshJob = super.doCreateRefreshJob(); |
| return this.refreshJob; |
| } |
| |
| @Override |
| protected void createControl(Composite parent, int treeStyle) { |
| super.createControl(parent, treeStyle); |
| |
| // Override superclass layout settings... |
| GridLayout layout = (GridLayout) getLayout(); |
| layout.verticalSpacing = 0; |
| layout.horizontalSpacing = 0; |
| } |
| |
| @Override |
| protected Control createTreeControl(Composite parent, int style) { |
| progressComposite = createProgressComposite(parent); |
| // progressComposite.setVisible(false); |
| // ((GridData) progressComposite.getLayoutData()).exclude = true; |
| |
| searchComposite = createSearchComposite(parent); |
| if (searchComposite != null) { |
| searchComposite.setVisible(false); |
| ((GridData) searchComposite.getLayoutData()).exclude = true; |
| } |
| |
| return super.createTreeControl(parent, style); |
| } |
| |
| @Override |
| protected Composite createFilterControls(final Composite parent) { |
| // replace filterComposite by a new composite |
| filterComposite = new Composite(parent.getParent(), SWT.NONE); |
| GridLayout gridLayout = new GridLayout(1, false); |
| gridLayout.marginWidth = 0; |
| gridLayout.marginHeight = 0; |
| gridLayout.marginLeft = 3; |
| gridLayout.marginTop = 5; |
| gridLayout.marginBottom = 3; |
| gridLayout.verticalSpacing = 0; |
| filterComposite.setLayout(gridLayout); |
| |
| // let FilteredTree create the find and clear control |
| super.createFilterControls(parent); |
| GridDataFactory.fillDefaults() |
| .align(SWT.BEGINNING, SWT.CENTER) |
| .grab(false, false) |
| .hint(FILTER_WIDTH_MIN, SWT.DEFAULT) |
| .minSize(FILTER_WIDTH_MIN, SWT.DEFAULT) |
| .applyTo(parent); |
| filterComposite.addControlListener(new ControlAdapter() { |
| boolean handlingEvents; |
| |
| @Override |
| public void controlResized(ControlEvent e) { |
| if (handlingEvents) { |
| return; |
| } |
| try { |
| handlingEvents = true; |
| Point size = parent.getParent().getSize(); |
| int width = Math.max(FILTER_WIDTH_MIN, (int) (size.x * FILTER_WIDTH_RATIO)); |
| int offset = 1; |
| if (parent.getParent().getLayoutData() instanceof GridData) { |
| offset = ((GridLayout) parent.getParent().getLayout()).marginWidth |
| + ((GridLayout) parent.getParent().getLayout()).marginLeft |
| + ((GridLayout) parent.getParent().getLayout()).horizontalSpacing; |
| } |
| ((GridData) parent.getLayoutData()).widthHint = Math.min(width, FILTER_WIDTH_MAX) + offset; |
| ((GridData) filterText.getParent().getLayoutData()).widthHint = Math.min(width, FILTER_WIDTH_MAX); |
| parent.getParent().layout(); |
| } finally { |
| handlingEvents = false; |
| } |
| } |
| }); |
| filterText.addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyPressed(KeyEvent e) { |
| if (e.character == SWT.ESC && e.doit) { |
| setFilterText(""); //$NON-NLS-1$ |
| } |
| } |
| }); |
| ((GridData) filterText.getLayoutData()).verticalAlignment = SWT.CENTER; |
| |
| // move original filterComposite on new filterComposite |
| parent.setParent(filterComposite); |
| |
| Composite workingSetComposite = createActiveWorkingSetComposite(filterComposite); |
| if (workingSetComposite != null) { |
| GridDataFactory.fillDefaults() |
| .align(SWT.BEGINNING, SWT.CENTER) |
| .grab(false, false) |
| .applyTo(workingSetComposite); |
| } |
| Composite activeTaskComposite = createActiveTaskComposite(filterComposite); |
| if (activeTaskComposite != null) { |
| GridDataFactory.fillDefaults() |
| .align(SWT.BEGINNING, SWT.CENTER) |
| .grab(true, false) |
| .applyTo(activeTaskComposite); |
| } |
| |
| Composite additionalComposite = createAdditionalControls(filterComposite); |
| if (additionalComposite != null) { |
| GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).grab(true, false).applyTo(additionalComposite); |
| } |
| |
| gridLayout.numColumns = filterComposite.getChildren().length; |
| return parent; |
| } |
| |
| protected abstract Composite createProgressComposite(Composite container); |
| |
| protected abstract Composite createActiveWorkingSetComposite(Composite container); |
| |
| protected abstract Composite createActiveTaskComposite(Composite container); |
| |
| protected Composite createSearchComposite(Composite container) { |
| return null; |
| } |
| |
| /** |
| * @since 3.18 |
| */ |
| protected Composite createAdditionalControls(Composite container) { |
| return null; |
| } |
| |
| @Override |
| protected void textChanged() { |
| // this call allows the filtered tree to preserve the selection when the clear button is used. |
| // It is necessary to correctly set the private narrowingDown flag in the super class. |
| // Note that the scheduling of the refresh job that is done in the super class will be overridden |
| // by the call to refreshPolicy.textChanged(). |
| String text = getFilterString(); |
| if (text == null || text.equals(previousFilterText)) { |
| return; |
| } |
| super.textChanged(); |
| |
| previousFilterText = text; |
| |
| if (refreshPolicy != null) { |
| if (LABEL_FIND.equals(text) && !useNewLook) { |
| clearText(); |
| refreshPolicy.textChanged(""); //$NON-NLS-1$ |
| } else { |
| refreshPolicy.textChanged(text); |
| } |
| } |
| // bug 165353 work-around for premature return at FilteredTree.java:374 |
| updateToolbar(true); |
| } |
| |
| @Deprecated |
| protected Job getRefreshJob() { |
| return refreshJob; |
| } |
| |
| public AdaptiveRefreshPolicy getRefreshPolicy() { |
| return refreshPolicy; |
| } |
| |
| public boolean isShowProgress() { |
| return showProgress; |
| } |
| |
| public void setShowProgress(boolean showProgress) { |
| this.showProgress = showProgress; |
| if (progressComposite != null) { |
| progressComposite.setVisible(showProgress); |
| ((GridData) progressComposite.getLayoutData()).exclude = !showProgress; |
| } |
| getParent().getParent().layout(true, true); |
| } |
| |
| public void setShowSearch(boolean showSearch) { |
| if (searchComposite != null) { |
| searchComposite.setVisible(showSearch); |
| ((GridData) searchComposite.getLayoutData()).exclude = !showSearch; |
| getParent().getParent().layout(true, true); |
| } |
| } |
| } |