Java tutorial
/* * Copyright (c) 2006 Borland Software Corporation * * 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: * Dmitry Stadnik (Borland) - initial API and implementation */ package org.eclipse.gmf.map.editor.edit.parts; import java.util.ArrayList; import org.eclipse.gef.EditPolicy; import org.eclipse.gef.GraphicalEditPart; import org.eclipse.gmf.runtime.diagram.ui.editparts.ITextAwareEditPart; import org.eclipse.gmf.runtime.diagram.ui.editpolicies.LabelDirectEditPolicy; import org.eclipse.gmf.runtime.notation.View; import java.util.Collections; import java.util.List; import org.eclipse.draw2d.IFigure; import org.eclipse.draw2d.Label; import org.eclipse.draw2d.geometry.Point; import org.eclipse.emf.common.notify.Notification; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.transaction.RunnableWithResult; import org.eclipse.gef.AccessibleEditPart; import org.eclipse.gef.Request; import org.eclipse.gef.commands.Command; import org.eclipse.gef.editpolicies.NonResizableEditPolicy; import org.eclipse.gef.handles.NonResizableHandleKit; import org.eclipse.gef.requests.DirectEditRequest; import org.eclipse.gef.tools.DirectEditManager; import org.eclipse.gmf.map.editor.edit.policies.GMFMapTextSelectionEditPolicy; import org.eclipse.gmf.map.editor.part.GMFMapDiagramEditorPlugin; import org.eclipse.gmf.map.editor.providers.GMFMapElementTypes; import org.eclipse.gmf.runtime.common.ui.services.parser.IParser; import org.eclipse.gmf.runtime.common.ui.services.parser.IParserEditStatus; import org.eclipse.gmf.runtime.common.ui.services.parser.ParserEditStatus; import org.eclipse.gmf.runtime.common.ui.services.parser.ParserOptions; import org.eclipse.gmf.runtime.common.ui.services.parser.ParserService; import org.eclipse.gmf.runtime.diagram.ui.editparts.CompartmentEditPart; import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart; import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramColorRegistry; import org.eclipse.gmf.runtime.diagram.ui.requests.RequestConstants; import org.eclipse.gmf.runtime.diagram.ui.tools.TextDirectEditManager; import org.eclipse.gmf.runtime.draw2d.ui.figures.WrapLabel; import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter; import org.eclipse.gmf.runtime.emf.type.core.IElementType; import org.eclipse.gmf.runtime.emf.ui.services.parser.ISemanticParser; import org.eclipse.gmf.runtime.emf.ui.services.parser.ParserHintAdapter; import org.eclipse.gmf.runtime.notation.FontStyle; import org.eclipse.gmf.runtime.notation.NotationPackage; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.text.contentassist.IContentAssistProcessor; import org.eclipse.jface.viewers.ICellEditorValidator; import org.eclipse.swt.SWT; import org.eclipse.swt.accessibility.AccessibleEvent; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.graphics.Image; /** * @generated */ public class CanvasMappingInfoEditPart extends CompartmentEditPart implements ITextAwareEditPart { /** * @generated */ public static final int VISUAL_ID = 5001; /** * @generated */ private DirectEditManager manager; /** * @generated */ private IParser parser; /** * @generated */ private List parserElements; /** * @generated */ private String defaultText; /** * @generated */ public CanvasMappingInfoEditPart(View view) { super(view); } /** * @generated */ protected void createDefaultEditPolicies() { super.createDefaultEditPolicies(); installEditPolicy(EditPolicy.DIRECT_EDIT_ROLE, new LabelDirectEditPolicy()); installEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE, new NonResizableEditPolicy() { protected List createSelectionHandles() { List handles = new ArrayList(); NonResizableHandleKit.addMoveHandle((GraphicalEditPart) getHost(), handles); return handles; } public Command getCommand(Request request) { return null; } public boolean understandsRequest(Request request) { return false; } }); } /** * @generated */ protected String getLabelTextHelper(IFigure figure) { if (figure instanceof WrapLabel) { return ((WrapLabel) figure).getText(); } else { return ((Label) figure).getText(); } } /** * @generated */ protected void setLabelTextHelper(IFigure figure, String text) { if (figure instanceof WrapLabel) { ((WrapLabel) figure).setText(text); } else { ((Label) figure).setText(text); } } /** * @generated */ protected Image getLabelIconHelper(IFigure figure) { if (figure instanceof WrapLabel) { return ((WrapLabel) figure).getIcon(); } else { return ((Label) figure).getIcon(); } } /** * @generated */ protected void setLabelIconHelper(IFigure figure, Image icon) { if (figure instanceof WrapLabel) { ((WrapLabel) figure).setIcon(icon); } else { ((Label) figure).setIcon(icon); } } /** * @generated */ public void setLabel(WrapLabel figure) { unregisterVisuals(); setFigure(figure); defaultText = getLabelTextHelper(figure); registerVisuals(); refreshVisuals(); } /** * @generated */ protected List getModelChildren() { return Collections.EMPTY_LIST; } /** * @generated */ public IGraphicalEditPart getChildBySemanticHint(String semanticHint) { return null; } /** * @generated */ protected EObject getParserElement() { EObject element = resolveSemanticElement(); return element != null ? element : (View) getModel(); } /** * @generated */ protected Image getLabelIcon() { ImageDescriptor descriptor = GMFMapDiagramEditorPlugin.getInstance() .getItemImageDescriptor(getParserElement()); if (descriptor == null) { descriptor = ImageDescriptor.getMissingImageDescriptor(); } return descriptor.createImage(); } /** * @generated */ protected String getLabelText() { String text = null; if (getParser() != null) { text = getParser().getPrintString(new EObjectAdapter(getParserElement()), getParserOptions().intValue()); } if (text == null || text.length() == 0) { text = defaultText; } return text; } /** * @generated */ public void setLabelText(String text) { setLabelTextHelper(getFigure(), text); Object pdEditPolicy = getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE); if (pdEditPolicy instanceof GMFMapTextSelectionEditPolicy) { ((GMFMapTextSelectionEditPolicy) pdEditPolicy).refreshFeedback(); } } /** * @generated */ public String getEditText() { if (getParser() == null) { return ""; //$NON-NLS-1$ } return getParser().getEditString(new EObjectAdapter(getParserElement()), getParserOptions().intValue()); } /** * @generated */ protected boolean isEditable() { return false; } /** * @generated */ public ICellEditorValidator getEditTextValidator() { return new ICellEditorValidator() { public String isValid(final Object value) { if (value instanceof String) { final EObject element = getParserElement(); final IParser parser = getParser(); try { IParserEditStatus valid = (IParserEditStatus) getEditingDomain() .runExclusive(new RunnableWithResult.Impl() { public void run() { setResult(parser.isValidEditString(new EObjectAdapter(element), (String) value)); } }); return valid.getCode() == ParserEditStatus.EDITABLE ? null : valid.getMessage(); } catch (InterruptedException ie) { ie.printStackTrace(); } } // shouldn't get here return null; } }; } /** * @generated */ public IContentAssistProcessor getCompletionProcessor() { if (getParser() == null) { return null; } return getParser().getCompletionProcessor(new EObjectAdapter(getParserElement())); } /** * @generated */ public ParserOptions getParserOptions() { return ParserOptions.NONE; } /** * @generated */ public IParser getParser() { if (parser == null) { String parserHint = ((View) getModel()).getType(); ParserHintAdapter hintAdapter = new ParserHintAdapter(getParserElement(), parserHint) { public Object getAdapter(Class adapter) { if (IElementType.class.equals(adapter)) { return GMFMapElementTypes.CanvasMapping_2001; } return super.getAdapter(adapter); } }; parser = ParserService.getInstance().getParser(hintAdapter); } return parser; } /** * @generated */ protected DirectEditManager getManager() { if (manager == null) { setManager(new TextDirectEditManager(this, TextDirectEditManager.getTextCellEditorClass(this), GMFMapEditPartFactory.getTextCellEditorLocator(this))); } return manager; } /** * @generated */ protected void setManager(DirectEditManager manager) { this.manager = manager; } /** * @generated */ protected void performDirectEdit() { getManager().show(); } /** * @generated */ protected void performDirectEdit(Point eventLocation) { if (getManager().getClass() == TextDirectEditManager.class) { ((TextDirectEditManager) getManager()).show(eventLocation.getSWTPoint()); } } /** * @generated */ private void performDirectEdit(char initialCharacter) { if (getManager() instanceof TextDirectEditManager) { ((TextDirectEditManager) getManager()).show(initialCharacter); } else { performDirectEdit(); } } /** * @generated */ protected void performDirectEditRequest(Request request) { final Request theRequest = request; try { getEditingDomain().runExclusive(new Runnable() { public void run() { if (isActive() && isEditable()) { if (theRequest.getExtendedData().get( RequestConstants.REQ_DIRECTEDIT_EXTENDEDDATA_INITIAL_CHAR) instanceof Character) { Character initialChar = (Character) theRequest.getExtendedData() .get(RequestConstants.REQ_DIRECTEDIT_EXTENDEDDATA_INITIAL_CHAR); performDirectEdit(initialChar.charValue()); } else if ((theRequest instanceof DirectEditRequest) && (getEditText().equals(getLabelText()))) { DirectEditRequest editRequest = (DirectEditRequest) theRequest; performDirectEdit(editRequest.getLocation()); } else { performDirectEdit(); } } } }); } catch (InterruptedException e) { e.printStackTrace(); } } /** * @generated */ protected void refreshVisuals() { super.refreshVisuals(); refreshLabel(); refreshFont(); refreshFontColor(); refreshUnderline(); refreshStrikeThrough(); } /** * @generated */ protected void refreshLabel() { setLabelTextHelper(getFigure(), getLabelText()); setLabelIconHelper(getFigure(), getLabelIcon()); Object pdEditPolicy = getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE); if (pdEditPolicy instanceof GMFMapTextSelectionEditPolicy) { ((GMFMapTextSelectionEditPolicy) pdEditPolicy).refreshFeedback(); } } /** * @generated */ protected void refreshUnderline() { FontStyle style = (FontStyle) getFontStyleOwnerView().getStyle(NotationPackage.eINSTANCE.getFontStyle()); if (style != null && getFigure() instanceof WrapLabel) { ((WrapLabel) getFigure()).setTextUnderline(style.isUnderline()); } } /** * @generated */ protected void refreshStrikeThrough() { FontStyle style = (FontStyle) getFontStyleOwnerView().getStyle(NotationPackage.eINSTANCE.getFontStyle()); if (style != null && getFigure() instanceof WrapLabel) { ((WrapLabel) getFigure()).setTextStrikeThrough(style.isStrikeThrough()); } } /** * @generated */ protected void refreshFont() { FontStyle style = (FontStyle) getFontStyleOwnerView().getStyle(NotationPackage.eINSTANCE.getFontStyle()); if (style != null) { FontData fontData = new FontData(style.getFontName(), style.getFontHeight(), (style.isBold() ? SWT.BOLD : SWT.NORMAL) | (style.isItalic() ? SWT.ITALIC : SWT.NORMAL)); setFont(fontData); } } /** * @generated */ protected void setFontColor(Color color) { getFigure().setForegroundColor(color); } /** * @generated */ protected void addSemanticListeners() { if (getParser() instanceof ISemanticParser) { EObject element = resolveSemanticElement(); parserElements = ((ISemanticParser) getParser()).getSemanticElementsBeingParsed(element); for (int i = 0; i < parserElements.size(); i++) { addListenerFilter("SemanticModel" + i, this, (EObject) parserElements.get(i)); //$NON-NLS-1$ } } else { super.addSemanticListeners(); } } /** * @generated */ protected void removeSemanticListeners() { if (parserElements != null) { for (int i = 0; i < parserElements.size(); i++) { removeListenerFilter("SemanticModel" + i); //$NON-NLS-1$ } } else { super.removeSemanticListeners(); } } /** * @generated */ protected AccessibleEditPart getAccessibleEditPart() { if (accessibleEP == null) { accessibleEP = new AccessibleGraphicalEditPart() { public void getName(AccessibleEvent e) { e.result = getLabelTextHelper(getFigure()); } }; } return accessibleEP; } /** * @generated */ private View getFontStyleOwnerView() { return getPrimaryView(); } /** * @generated */ protected void addNotationalListeners() { super.addNotationalListeners(); addListenerFilter("PrimaryView", this, getPrimaryView()); //$NON-NLS-1$ } /** * @generated */ protected void removeNotationalListeners() { super.removeNotationalListeners(); removeListenerFilter("PrimaryView"); //$NON-NLS-1$ } /** * @generated */ protected void handleNotificationEvent(Notification event) { Object feature = event.getFeature(); if (NotationPackage.eINSTANCE.getFontStyle_FontColor().equals(feature)) { Integer c = (Integer) event.getNewValue(); setFontColor(DiagramColorRegistry.getInstance().getColor(c)); } else if (NotationPackage.eINSTANCE.getFontStyle_Underline().equals(feature)) { refreshUnderline(); } else if (NotationPackage.eINSTANCE.getFontStyle_StrikeThrough().equals(feature)) { refreshStrikeThrough(); } else if (NotationPackage.eINSTANCE.getFontStyle_FontHeight().equals(feature) || NotationPackage.eINSTANCE.getFontStyle_FontName().equals(feature) || NotationPackage.eINSTANCE.getFontStyle_Bold().equals(feature) || NotationPackage.eINSTANCE.getFontStyle_Italic().equals(feature)) { refreshFont(); } else { if (getParser() != null && getParser().isAffectingEvent(event, getParserOptions().intValue())) { refreshLabel(); } if (getParser() instanceof ISemanticParser) { ISemanticParser modelParser = (ISemanticParser) getParser(); if (modelParser.areSemanticElementsAffected(null, event)) { removeSemanticListeners(); if (resolveSemanticElement() != null) { addSemanticListeners(); } refreshLabel(); } } } super.handleNotificationEvent(event); } /** * @generated */ protected IFigure createFigure() { // Parent should assign one using setLabel method return null; } }