xmind-source-3.2.1.rar_xmind_xmind源码

/* ****************************************************************************** * Copyright (c) 2006-2010 XMind Ltd. and others. * * This file is a part of XMind 3. XMind releases 3 and * above are dual-licensed under the Eclipse Public License (EPL), * which is available at http://www.eclipse.org/legal/epl-v10.html * and the GNU Lesser General Public License (LGPL), * which is available at http://www.gnu.org/licenses/lgpl.html * See http://www.xmind.net/license.html for details. * * Contributors: * XMind Ltd. - initial API and implementation *******************************************************************************/ package org.xmind.ui.texteditor; import java.util.ArrayList; import org.eclipse.core.runtime.Assert; import org.eclipse.core.runtime.ListenerList; import org.eclipse.jface.bindings.keys.KeyStroke; import org.eclipse.jface.dialogs.PopupDialog; import org.eclipse.jface.fieldassist.IContentProposal; import org.eclipse.jface.fieldassist.IContentProposalListener; import org.eclipse.jface.fieldassist.IContentProposalListener2; import org.eclipse.jface.fieldassist.IContentProposalProvider; import org.eclipse.jface.fieldassist.IControlContentAdapter; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StyledText; import org.eclipse.swt.events.DisposeEvent; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.events.FocusAdapter; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.ScrollBar; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; import org.eclipse.swt.widgets.Text; /** * ContentProposalAdapter can be used to attach content proposal behavior to a * control. This behavior includes obtaining proposals, opening a popup dialog, * managing the content of the control relative to the selections in the popup, * and optionally opening up a secondary popup to further describe proposals. * <p> * A number of configurable options are provided to determine how the control * content is altered when a proposal is chosen, how the content proposal popup * is activated, and whether any filtering should be done on the proposals as * the user types characters. * <p> * This class is not intended to be subclassed. * <p> * <b>ATTN</b>: Frank Shaka has modified part of this class to adapt it for * XMIND. * * @since 3.2 */ public class ContentProposalAdapter { /** * Tests if the popup has focus. * * @return whether the popup has focus. */ // ATTN: Frank added this method. public boolean isPopupHasFocus() { if (!isValid() || popup == null) return false; if (scrollbarClicked || popup.hasFocus() || (popup.infoPopup != null && popup.infoPopup.hasFocus())) return true; Shell activeShell = Display.getCurrent().getActiveShell(); if (activeShell == popup.getShell() || (popup.infoPopup != null && popup.infoPopup.getShell() == activeShell)) { return true; } return false; } // ATTN: Frank moved this field to here from within // ContentProposalPopup.PopupCloserListener. private boolean scrollbarClicked = false; /* * The lightweight popup used to show content proposals for a text field. If * additional information exists for a proposal, then selecting that * proposal will result in the information being displayed in a secondary * popup. */ class ContentProposalPopup extends PopupDialog { /* * The listener we install on the popup and related controls to * determine when to close the popup. Some events (move, resize, close, * deactivate) trigger closure as soon as they are received, simply * because one of the registered listeners received them. Other events * depend on additional circumstances. */ private final class PopupCloserListener implements Listener { public void handleEvent(final Event e) { // If focus is leaving an important widget or the field's // shell is deactivating if (e.type == SWT.FocusOut) { scrollbarClicked = false; /* * Ignore this event if it's only happening because focus is * moving between the popup shells, their controls, or a * scrollbar. Do this in an async since the focus is not * actually switched when this event is received. */ e.display.asyncExec(new Runnable() { public void run() { if (isValid()) { if (scrollbarClicked || hasFocus() || (infoPopup != null && infoPopup .hasFocus())) { return; } // Workaround a problem on X and Mac, whereby at // this point, the focus control is not known. // This can happen, for example, when resizing // the popup shell on the Mac. // Check the active shell. Shell activeShell = e.display.getActiveShell(); if (activeShell == getShell() || (infoPopup != null && infoPopup .getShell() == activeShell)) { return; } /* * System.out.println(e); * System.out.println(e.display * .getFocusControl()); * System.out.println(e.display * .getActiveShell()); */ close(); } } }); return; } // Scroll bar has been clicked. Remember this for focus event // processing. if (e.type == SWT.Selection) { scrollbarClicked = true; return; } // For all other events, merely getting them dictates closure. close(); } // Install the listeners for events that need to be monitored for // popup closure. void installListeners() { // Listeners on this popup's table and scroll bar proposalTable.addListener(SWT.FocusOut, this); ScrollBar scrollbar = proposalTable.getVerticalBar(); if (scrollbar != null) { scrollbar.addListener(SWT.Selection, this); } // Listeners on this popup's shell getShell().addListener(SWT.Dea