Java tutorial
/** * Tencent is pleased to support the open source community by making APT available. * Copyright (C) 2014 THL A29 Limited, a Tencent company. All rights reserved. * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package com.tencent.wstt.apt.smap; import java.util.ArrayList; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.ITreeContentProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CTabFolder; import org.eclipse.swt.custom.CTabItem; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.FormAttachment; import org.eclipse.swt.layout.FormData; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.TreeColumn; import org.eclipse.ui.ISharedImages; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.ListDialog; import org.eclipse.ui.plugin.AbstractUIPlugin; import com.tencent.wstt.apt.data.Constant; import com.tencent.wstt.apt.ui.views.SMAPSView; import com.tencent.wstt.apt.util.CTabFolderItemUtil; public class APTSMAPSCTabItem extends CTabItem { private Object sourceData = null; private TreeViewer viewer = null; private Action expandAction = null; private Action collapseAction = null; private static final String[] COLUMN_NAME = { "Item", "Pss(kB)", "SharedDirty(kB)", "PrivateDirty(kB)" }; private static final int[] COLUMN_WIDTH = { 600, 150, 150, 150 }; public APTSMAPSCTabItem(CTabFolder parent, int style, String title) { super(parent, style); this.setText(title); Group rootGroup = new Group(parent, SWT.NONE); rootGroup.setLayout(new FormLayout()); createAPTSMAPSCTablItemUI(rootGroup); createMenuAndToolBar(); this.setControl(rootGroup); } private void createMenuAndToolBar() { makeActions(); createContextMenu(); } private void createContextMenu() { MenuManager menuMgr = new MenuManager(); menuMgr.setRemoveAllWhenShown(true); menuMgr.addMenuListener(new IMenuListener() { @Override public void menuAboutToShow(IMenuManager manager) { APTSMAPSCTabItem.this.fillContextMenu(manager); } }); Menu menu = menuMgr.createContextMenu(viewer.getControl()); viewer.getControl().setMenu(menu); } protected void fillContextMenu(IMenuManager manager) { manager.add(expandAction); manager.add(collapseAction); } private void makeActions() { expandAction = new Action() { @Override public void run() { super.run(); viewer.expandAll(); ; } }; expandAction.setText(""); expandAction.setToolTipText(""); collapseAction = new Action() { @Override public void run() { super.run(); viewer.collapseAll(); } }; collapseAction.setText("?"); collapseAction.setToolTipText("?"); } /** * viewer?? * @param sourceData */ public void updateData(Object sourceData) { if (viewer != null && sourceData != null) { this.sourceData = sourceData; viewer.setInput(sourceData); viewer.refresh(); } } /** * ??viewer?? * @return */ public Object getSourceData() { return this.sourceData; } /** * ?UI * @param parent */ private void createAPTSMAPSCTablItemUI(Composite parent) { int margin = 5; // FormData expandBtnFD = new FormData(); // expandBtnFD.left = new FormAttachment(0, margin); // expandBtnFD.top = new FormAttachment(0, margin); // expandBtnFD.height = 16; // expandBtnFD.width = 16; // // Button expandBtn = new Button(parent, SWT.NONE); // expandBtn.setToolTipText("/?"); // expandBtn.setImage(AbstractUIPlugin.imageDescriptorFromPlugin(Constant.PLUGIN_ID, "icons/add.png").createImage()); // expandBtn.setLayoutData(expandBtnFD); // /** // * TODO ??? // */ FormData compareBtnFD = new FormData(); compareBtnFD.left = new FormAttachment(0, margin); compareBtnFD.top = new FormAttachment(0, margin); compareBtnFD.height = 16; compareBtnFD.width = 16; Button compareBtn = new Button(parent, SWT.NONE); compareBtn.setToolTipText("smaps"); compareBtn.setImage( AbstractUIPlugin.imageDescriptorFromPlugin(Constant.PLUGIN_ID, "icons/stat.png").createImage()); compareBtn.setLayoutData(compareBtnFD); compareBtn.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { //???smaps CTabItem[] openedTabItems = APTSMAPSCTabItem.this.getParent().getItems(); if (openedTabItems != null && openedTabItems.length > 1) { ArrayList<String> files = new ArrayList<String>(); for (int i = 0; i < openedTabItems.length; i++) { if (!APTSMAPSCTabItem.this.getText().equals(openedTabItems[i].getText())) { files.add(openedTabItems[i].getText()); } } ListDialog dialog = new ListDialog(Display.getCurrent().getActiveShell()); dialog.setContentProvider(new ArrayContentProvider()); dialog.setLabelProvider(new LabelProvider()); dialog.setInput(files); dialog.setHelpAvailable(false); dialog.setTitle("?smaps"); dialog.open();// Object[] selectedFiles = dialog.getResult(); if (selectedFiles != null && selectedFiles.length > 0) { String fileName = (String) selectedFiles[0]; Object sourceData = ((APTSMAPSCTabItem) CTabFolderItemUtil.getTabItem(openedTabItems, fileName)).getSourceData(); Object diffSouceData = SmapsUtil.getDiff( (SMAPSSourceDataItem) (APTSMAPSCTabItem.this.getSourceData()), (SMAPSSourceDataItem) sourceData); SMAPSView smapsViewPart = (SMAPSView) PlatformUI.getWorkbench().getActiveWorkbenchWindow() .getActivePage().findView(SMAPSView.ID); smapsViewPart.openSmapsDataInSMAPSView(diffSouceData, "diff"); } } else { MessageDialog.openInformation(Display.getDefault().getActiveShell(), "??", "No other smaps file opened"); } } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); FormData treeViewerFD = new FormData(); treeViewerFD.left = new FormAttachment(0, margin); treeViewerFD.top = new FormAttachment(compareBtn, margin); treeViewerFD.right = new FormAttachment(100, -margin); treeViewerFD.bottom = new FormAttachment(100, -margin); viewer = new TreeViewer(parent, SWT.MULTI | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL); for (int i = 0; i < COLUMN_NAME.length; i++) { new TreeColumn(viewer.getTree(), SWT.LEFT).setText(COLUMN_NAME[i]); viewer.getTree().getColumn(i).setWidth(COLUMN_WIDTH[i]); } viewer.getControl().setLayoutData(treeViewerFD); //?? viewer.getTree().setHeaderVisible(true); viewer.getTree().setLinesVisible(true); viewer.setContentProvider(new ViewContentProvider()); viewer.setLabelProvider(new ViewLabelProvider()); } class ViewContentProvider implements ITreeContentProvider { //Methods inherited from interface org.eclipse.jface.viewers.IContentProvider @Override public void inputChanged(Viewer v, Object oldInput, Object newInput) { } @Override public void dispose() { } @Override // Returns the elements to display in the viewer when its input is set to the given element. // These elements can be presented as rows in table, items in a list,etc. The result is not // modified by the viewer // NOTE: The returned array must not contain the given inputElement, since this leads to recursion issues public Object[] getElements(Object parent) { SMAPSSourceDataItem root = (SMAPSSourceDataItem) parent; //??? // TODO ??TID?TAG if (root.hasChildren()) { return root.getChildren().toArray(); } //???? //return new Object[0]; return null; } @Override // The difference between this method and IStructuredContentProvider.getElements // is that getElements is called to obtain the tree viewer's root elements, // whereas getChildren is used to obtain the children of a given parent element in the tree (including a root public Object[] getChildren(Object parentElement) { if (parentElement instanceof SMAPSSourceDataItem) { return ((SMAPSSourceDataItem) parentElement).getChildren().toArray(); } return null; } @Override // Returns the parent for the given element, or null indicating that the parent can't // be computed. In this case the tree-structured viewer can't expand a given node correctly // if requested public Object getParent(Object element) { if (element instanceof SMAPSSourceDataItem) { return ((SMAPSSourceDataItem) element).getParent(); } return null; } @Override // Intended as an optimization for when the viewer does not need the actual children. // Clients may be able to implement this more efficiently than getChildren. public boolean hasChildren(Object element) { // TODO if (element instanceof SMAPSSourceDataItem) { return ((SMAPSSourceDataItem) element).hasChildren(); } return false; } } class ViewLabelProvider extends LabelProvider implements ITableLabelProvider { public String getColumnText(Object obj, int index) { return ((SMAPSSourceDataItem) obj).contents[index]; } public Image getColumnImage(Object obj, int index) { return null; } public Image getImage(Object obj) { return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_ELEMENT); } } }