Java tutorial
/******************************************************************************* * Copyright (c) 2015 ARM Ltd. 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: * ARM Ltd and ARM Germany GmbH - Initial API and implementation *******************************************************************************/ package com.arm.cmsis.pack.ui.widgets; import java.util.Collection; import org.eclipse.jface.viewers.ColumnViewer; import org.eclipse.jface.viewers.ColumnViewerToolTipSupport; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Tree; import com.arm.cmsis.pack.common.CmsisConstants; import com.arm.cmsis.pack.enums.EEvaluationResult; import com.arm.cmsis.pack.events.RteEvent; import com.arm.cmsis.pack.generic.ITreeObject; import com.arm.cmsis.pack.info.ICpComponentInfo; import com.arm.cmsis.pack.rte.IRteModelController; import com.arm.cmsis.pack.rte.components.IRteComponent; import com.arm.cmsis.pack.rte.components.IRteComponentItem; import com.arm.cmsis.pack.rte.dependencies.IRteDependencyItem; import com.arm.cmsis.pack.ui.CpPlugInUI; import com.arm.cmsis.pack.ui.CpStringsUI; import com.arm.cmsis.pack.ui.tree.AdvisedCellLabelProvider; import com.arm.cmsis.pack.ui.tree.AdvisedEditingSupport; import com.arm.cmsis.pack.ui.tree.TreeObjectContentProvider; public class RteValidateWidget extends RteWidget { TreeViewer fViewer = null; /** Column label provider for RteComponentTreeWidget * */ IRteDependencyItem getDependencyItem(Object element) { if (element instanceof IRteDependencyItem) return (IRteDependencyItem) element; return null; } /** * Set current configuration for this component tree widget * @param configuration A RTE configuration that contains RTE component */ @Override public void setModelController(IRteModelController model) { super.setModelController(model); if (fViewer != null) { fViewer.setInput(model); refresh(); } } public class RteValidateColumnAdvisor extends RteColumnAdvisor { /** * Constructs advisor for a viewer * @param columnViewer ColumnViewer on which the advisor is installed */ public RteValidateColumnAdvisor(ColumnViewer columnViewer) { super(columnViewer); } @Override public String getString(Object obj, int index) { IRteDependencyItem item = getDependencyItem(obj); if (item != null) { switch (index) { case 0: return item.getName(); case 1: return item.getDescription(); default: break; } } return CmsisConstants.EMPTY_STRING; } @Override public Image getImage(Object obj, int columnIndex) { if (columnIndex == 0) { IRteDependencyItem item = getDependencyItem(obj); if (item != null) { if (item.isMaster()) { EEvaluationResult res = item.getEvaluationResult(); if (res == EEvaluationResult.FULFILLED && item.isDeny()) res = EEvaluationResult.INCOMPATIBLE; switch (res) { case IGNORED: case UNDEFINED: case FULFILLED: break; case CONFLICT: case ERROR: case FAILED: case INCOMPATIBLE: case INCOMPATIBLE_API: case INCOMPATIBLE_BUNDLE: case INCOMPATIBLE_VARIANT: case INCOMPATIBLE_VENDOR: case INCOMPATIBLE_VERSION: case MISSING: case MISSING_API: case MISSING_BUNDLE: case MISSING_VARIANT: case MISSING_VENDOR: case MISSING_VERSION: case UNAVAILABLE: case UNAVAILABLE_PACK: return CpPlugInUI.getImage(CpPlugInUI.ICON_ERROR); case INACTIVE: case INSTALLED: case SELECTABLE: return CpPlugInUI.getImage(CpPlugInUI.ICON_WARNING); default: break; } return null; } else if (item.getComponentItem() != null) { IRteComponent component = item.getComponentItem().getParentComponent(); if (component != null) { ICpComponentInfo ci = component.getActiveCpComponentInfo(); int instances = component.getMaxInstanceCount(); if (ci != null && ci.getComponent() == null) { if (instances > 1) return CpPlugInUI.getImage(CpPlugInUI.ICON_MULTICOMPONENT_ERROR); else return CpPlugInUI.getImage(CpPlugInUI.ICON_COMPONENT_ERROR); } else { if (instances > 1) return CpPlugInUI.getImage(CpPlugInUI.ICON_MULTICOMPONENT); else return CpPlugInUI.getImage(CpPlugInUI.ICON_COMPONENT); } } } } } return null; } } /** * Content provider for RteValidateWidget tree */ public class RteValidateContentProvider extends TreeObjectContentProvider { @Override public Object[] getElements(Object inputElement) { if (inputElement == getModelController()) { Collection<? extends IRteDependencyItem> depItems = getModelController().getDependencyItems(); if (depItems != null) return depItems.toArray(); return ITreeObject.EMPTY_OBJECT_ARRAY; } return getChildren(inputElement); } } @Override public Composite createControl(Composite parent) { Tree tree = new Tree(parent, SWT.FULL_SELECTION | SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER); tree.setHeaderVisible(true); fViewer = new TreeViewer(tree); ColumnViewerToolTipSupport.enableFor(fViewer); fColumnAdvisor = new RteValidateColumnAdvisor(fViewer); TreeViewerColumn column0 = new TreeViewerColumn(fViewer, SWT.LEFT); tree.setLinesVisible(true); column0.getColumn().setAlignment(SWT.LEFT); column0.getColumn().setText(CpStringsUI.RteValidateWidget_ValidationOutput); column0.getColumn().setWidth(400); column0.setEditingSupport(new AdvisedEditingSupport(fViewer, fColumnAdvisor, 0)); fViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { handleTreeSelectionChanged(event); } }); AdvisedCellLabelProvider col0LabelProvider = new AdvisedCellLabelProvider(fColumnAdvisor, 0); // workaround jface bug: first owner-draw column is not correctly painted when column is resized col0LabelProvider.setOwnerDrawEnabled(false); column0.setLabelProvider(col0LabelProvider); TreeViewerColumn column1 = new TreeViewerColumn(fViewer, SWT.RIGHT); column1.getColumn().setAlignment(SWT.LEFT); column1.getColumn().setText(CpStringsUI.RteValidateWidget_Description); column1.getColumn().setWidth(500); column1.setEditingSupport(new AdvisedEditingSupport(fViewer, fColumnAdvisor, 1)); column1.setLabelProvider(new AdvisedCellLabelProvider(fColumnAdvisor, 1)); RteValidateContentProvider validateProvider = new RteValidateContentProvider(); fViewer.setContentProvider(validateProvider); GridData gridData = new GridData(); gridData.horizontalAlignment = SWT.FILL; gridData.verticalAlignment = SWT.FILL; gridData.grabExcessHorizontalSpace = true; gridData.grabExcessVerticalSpace = true; tree.setLayoutData(gridData); if (getModelController() != null) { fViewer.setInput(getModelController()); } return tree; } private IRteDependencyItem getSelectedDependencyItem() { IStructuredSelection sel = (IStructuredSelection) fViewer.getSelection(); if (sel.size() == 1) { Object o = sel.getFirstElement(); if (o instanceof IRteDependencyItem) { return (IRteDependencyItem) o; } } return null; } /** * @param event */ protected void handleTreeSelectionChanged(SelectionChangedEvent event) { if (getModelController() == null) return; IRteDependencyItem d = getSelectedDependencyItem(); if (d == null) return; IRteComponentItem item = d.getComponentItem(); if (item != null) { getModelController().emitRteEvent(RteEvent.COMPONENT_SHOW, item); } } @Override public void handle(RteEvent event) { if (event.getTopic().equals(RteEvent.COMPONENT_SELECTION_MODIFIED) || event.getTopic().equals(RteEvent.CONFIGURATION_COMMITED) || event.getTopic().equals(RteEvent.CONFIGURATION_MODIFIED)) { update(); } } @Override public void refresh() { if (fViewer != null) fViewer.refresh(); } @Override public void update() { refresh(); if (fViewer != null) fViewer.expandAll(); } @Override public Composite getFocusWidget() { return fViewer.getTree(); } }