Java tutorial
/* ****************************************************************************** * Copyright (c) 2006-2012 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.internal.properties; import java.util.ArrayList; import java.util.List; import org.eclipse.jface.action.IAction; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.IActionBars; import org.eclipse.ui.actions.ActionFactory; import org.eclipse.ui.forms.events.HyperlinkEvent; import org.eclipse.ui.forms.events.IHyperlinkListener; import org.eclipse.ui.forms.widgets.Hyperlink; import org.eclipse.ui.part.IPageSite; import org.xmind.core.style.IStyled; import org.xmind.gef.ui.editor.IGraphicalEditor; import org.xmind.gef.ui.editor.IGraphicalEditorPage; import org.xmind.gef.ui.properties.GraphicalPropertySheetPage; import org.xmind.ui.commands.CommandMessages; import org.xmind.ui.commands.ModifyStyleCommand; import org.xmind.ui.forms.WidgetFactory; import org.xmind.ui.internal.MindMapMessages; import org.xmind.ui.mindmap.ICategoryAnalyzation; import org.xmind.ui.mindmap.ICategoryManager; import org.xmind.ui.mindmap.MindMapUI; import org.xmind.ui.resources.FontUtils; public class MindMapPropertySheetPage extends GraphicalPropertySheetPage { private static PropertySectionContributorManager manager = PropertySectionContributorManager.getInstance(); private Hyperlink resetStyleControl; public MindMapPropertySheetPage(IGraphicalEditor editor) { super(editor); } /* * (non-Javadoc) * * @see * org.xmind.gef.ui.properties.GraphicalPropertySheetPage#init(org.eclipse * .ui.part.IPageSite) */ @Override public void init(IPageSite pageSite) { super.init(pageSite); IActionBars targetActionBars = pageSite.getActionBars(); IActionBars sourceActionBars = getContributedEditor().getEditorSite().getActionBars(); retargetAction(sourceActionBars, targetActionBars, ActionFactory.UNDO.getId()); retargetAction(sourceActionBars, targetActionBars, ActionFactory.REDO.getId()); } /** * @param sourceActionBars * @param targetActionBars * @param id */ private void retargetAction(IActionBars sourceActionBars, IActionBars targetActionBars, String actionId) { IAction handler = sourceActionBars.getGlobalActionHandler(actionId); if (handler != null) { targetActionBars.setGlobalActionHandler(actionId, handler); } } @Override protected void createExtendSectionControls(WidgetFactory widgetFactory, Composite parent) { super.createExtendSectionControls(widgetFactory, parent); createResetStyleControl(widgetFactory, parent); } private void createResetStyleControl(WidgetFactory widgetFactory, Composite parent) { resetStyleControl = widgetFactory.createHyperlink(parent, MindMapMessages.MindMapPropertySheetPage_ResetStyle_text, SWT.NONE); resetStyleControl.setUnderlined(false); resetStyleControl.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, true, false)); resetStyleControl.addHyperlinkListener(new IHyperlinkListener() { public void linkExited(HyperlinkEvent e) { resetStyleControl.setUnderlined(false); } public void linkEntered(HyperlinkEvent e) { resetStyleControl.setUnderlined(true); } public void linkActivated(HyperlinkEvent e) { resetStyles(); } }); resetStyleControl.setFont(FontUtils.getRelativeHeight(JFaceResources.DEFAULT_FONT, -1)); resetStyleControl.setForeground(parent.getDisplay().getSystemColor(SWT.COLOR_BLUE)); } private boolean shouldHasResetStyleControl(ISelection selection) { if (!(selection instanceof StructuredSelection)) return false; boolean result = true; Object[] resetedStyleds = ((StructuredSelection) selection).toArray(); if (resetedStyleds != null) { for (Object styled : resetedStyleds) { if (!(styled instanceof IStyled)) { result = false; } } } return result; } protected void resetStyles() { IGraphicalEditor editor = getContributedEditor(); if (editor == null) return; IGraphicalEditorPage activePageInstance = editor.getActivePageInstance(); if (activePageInstance == null) return; ISelectionProvider selectionProvider = activePageInstance.getSelectionProvider(); if (selectionProvider == null) return; ISelection selection = selectionProvider.getSelection(); if (!(selection instanceof StructuredSelection)) return; Object[] resetedStyleds = ((StructuredSelection) selection).toArray(); if (resetedStyleds != null) { for (Object styled : resetedStyleds) { if (styled instanceof IStyled) { IStyled resetedStyled = (IStyled) styled; ModifyStyleCommand modifyStyleCommand = new ModifyStyleCommand(resetedStyled, (String) null); modifyStyleCommand.setLabel(CommandMessages.Command_ModifyStyle); editor.getCommandStack().execute(modifyStyleCommand); } } } } protected void selectionChanged(ISelection selection) { if (getControl() != null && !getControl().isDisposed()) getControl().setRedraw(false); if (resetStyleControl != null && !resetStyleControl.isDisposed()) { boolean resetStyleControlVisible = shouldHasResetStyleControl(selection); GridData gd = (GridData) resetStyleControl.getLayoutData(); gd.exclude = !resetStyleControlVisible; resetStyleControl.setVisible(resetStyleControlVisible); } if (selection instanceof IStructuredSelection) { IStructuredSelection ss = (IStructuredSelection) selection; List<String> newVisibleSectionIds = manager.getApplicableSectionIds(ss.toArray()); List<String> oldVisibleSectionIds = getVisibleSectionIds(); if (!equalsList(oldVisibleSectionIds, newVisibleSectionIds)) { List<String> oldSectionIds = getSectionIds(); List<String> toAdd = new ArrayList<String>(newVisibleSectionIds); toAdd.removeAll(oldSectionIds); for (String id : toAdd) { addSection(id, newVisibleSectionIds, oldSectionIds); oldSectionIds = getSectionIds(); } List<String> toHide = new ArrayList<String>(oldSectionIds); toHide.removeAll(newVisibleSectionIds); for (String id : oldSectionIds) { setSectionVisible(id, !toHide.contains(id)); } reflow(); } setTitle(calcTitle(ss.toArray())); } else { setTitle(null); } if (getControl() != null && !getControl().isDisposed()) getControl().setRedraw(true); } private void addSection(String id, List<String> newVisibleSectionIds, List<String> oldSectionIds) { addSection(id, manager.createSection(id)); String aboveId = findAboveId(id, oldSectionIds, newVisibleSectionIds); moveSectionAfter(id, aboveId); } private String findAboveId(String id, List<String> oldSectionIds, List<String> newSectionIds) { int index = newSectionIds.indexOf(id); for (int i = index - 1; i >= 0; i--) { String aboveId = newSectionIds.get(i); if (oldSectionIds.contains(aboveId)) return aboveId; } return null; } private static boolean equalsList(List<String> list1, List<String> list2) { if (list1.size() != list2.size()) return false; for (int i = 0; i < list1.size(); i++) { String s1 = list1.get(i); String s2 = list2.get(i); if (!s1.equals(s2)) return false; } return true; } private String calcTitle(Object[] objects) { if (objects == null || objects.length == 0) return null; String category = getCategoryName(objects); return category; // String names = join(getObjectNames(objects)); // if ("".equals(names)) //$NON-NLS-1$ // return category; // return NLS.bind("{0} ({1})", category, names); //$NON-NLS-1$ } // private String[] getObjectNames(Object[] objects) { // String[] names = new String[objects.length]; // for (int i = 0; i < objects.length; i++) { // Object obj = objects[i]; // names[i] = trim(getObjectName(obj)); // } // return names; // } // private String getObjectName(Object obj) { // if (obj instanceof ITitled) // return ((ITitled) obj).getTitleText(); // if (obj instanceof INamed) // return ((INamed) obj).getName(); // if (obj instanceof IAdaptable) { // ITitled titled = (ITitled) ((IAdaptable) obj) // .getAdapter(ITitled.class); // if (titled != null) // return titled.getTitleText(); // INamed named = (INamed) ((IAdaptable) obj).getAdapter(INamed.class); // if (named != null) // return named.getName(); // } // // if (obj != null) // return obj.toString(); // return ""; //$NON-NLS-1$ // } private String getCategoryName(Object[] objects) { ICategoryManager typeManager = MindMapUI.getCategoryManager(); ICategoryAnalyzation result = typeManager.analyze(objects); return typeManager.getCategoryName(result.getMainCategory()); } // private static String join(String[] strs) { // StringBuilder sb = new StringBuilder(strs.length * 15); // for (String s : strs) { // if (sb.length() > 0) { // sb.append(", "); //$NON-NLS-1$ // } // sb.append(s); // } // return sb.toString(); // } // private static String trim(String name) { // name = name.replaceAll("\\s+", " ").trim(); //$NON-NLS-1$ //$NON-NLS-2$ // return name.length() > 100 ? name.substring(0, 97) + "..." : name; //$NON-NLS-1$ // } }