| /******************************************************************************* |
| * Copyright (c) 2011-2015 EclipseSource Muenchen GmbH 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: |
| * Johannes Faltermeier - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.emfforms.spi.swt.control.text.richtext.renderer; |
| |
| import javax.inject.Inject; |
| |
| import org.eclipse.core.databinding.Binding; |
| import org.eclipse.core.databinding.DataBindingContext; |
| import org.eclipse.core.databinding.UpdateValueStrategy; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.emf.ecp.view.spi.context.ViewModelContext; |
| import org.eclipse.emf.ecp.view.spi.core.swt.renderer.TextControlSWTRenderer; |
| import org.eclipse.emf.ecp.view.spi.model.VControl; |
| import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider; |
| import org.eclipse.emfforms.spi.common.report.ReportService; |
| import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding; |
| import org.eclipse.emfforms.spi.core.services.editsupport.EMFFormsEditSupport; |
| import org.eclipse.emfforms.spi.core.services.label.EMFFormsLabelProvider; |
| import org.eclipse.emfforms.spi.swt.core.layout.EMFFormsSWTLayoutUtil; |
| import org.eclipse.emfforms.spi.swt.core.util.PopupWindow; |
| import org.eclipse.jface.databinding.swt.WidgetProperties; |
| import org.eclipse.jface.layout.GridDataFactory; |
| import org.eclipse.jface.layout.GridLayoutFactory; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.DisposeEvent; |
| import org.eclipse.swt.events.DisposeListener; |
| import org.eclipse.swt.events.FocusEvent; |
| import org.eclipse.swt.events.FocusListener; |
| import org.eclipse.swt.events.ModifyEvent; |
| import org.eclipse.swt.events.ModifyListener; |
| import org.eclipse.swt.events.MouseEvent; |
| import org.eclipse.swt.events.MouseListener; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * The text control renderer allows to enter text while given autocompletion proposals. Moreover it is possible to |
| * select a proposed value from a combo box. |
| * |
| * @author jfaltermeier |
| * |
| */ |
| public class RichTextControlSWTRenderer extends TextControlSWTRenderer { |
| private GridData textGridData; |
| private Text text; |
| |
| /** |
| * @author jonas |
| * |
| */ |
| private final class OpenPopupHandler implements MouseListener { |
| private final Text text; |
| |
| private OpenPopupHandler(Text text) { |
| this.text = text; |
| } |
| |
| @Override |
| public void mouseUp(MouseEvent e) { |
| // do nothing |
| } |
| |
| @Override |
| public void mouseDown(MouseEvent e) { |
| |
| final PopupWindow popupWindow = createPopupWindow(); |
| |
| final Text innerText = new Text(popupWindow.getContent(), |
| SWT.MULTI | SWT.WRAP | SWT.V_SCROLL | SWT.H_SCROLL); |
| final GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true); |
| layoutData.heightHint = getPreferrredPopupHeight(); |
| innerText.setLayoutData(layoutData); |
| innerText.setSize(300, getPreferrredPopupHeight()); |
| popupWindow.getContent().pack(); |
| innerText.setText(text.getText()); |
| innerText.setSelection(text.getCaretPosition()); |
| |
| innerText.addFocusListener(new FocusListener() { |
| @Override |
| public void focusLost(FocusEvent e) { |
| popupWindow.close(); |
| } |
| |
| @Override |
| public void focusGained(FocusEvent e) { |
| // do nothing |
| } |
| }); |
| innerText.addDisposeListener(new DisposeListener() { |
| |
| @Override |
| public void widgetDisposed(DisposeEvent e) { |
| text.setText(innerText.getText()); |
| } |
| }); |
| popupWindow.open(); |
| |
| } |
| |
| @Override |
| public void mouseDoubleClick(MouseEvent e) { |
| // do nothing |
| } |
| } |
| |
| /** |
| * Specifies the preferred size of the popup window. |
| * |
| * @return the size in pixel |
| */ |
| protected int getPreferrredPopupHeight() { |
| return 450; |
| } |
| |
| /** |
| * creates the popup window. |
| * |
| * @return a new {@link PopupWindow} |
| */ |
| protected PopupWindow createPopupWindow() { |
| return new PopupWindow(text, getPreferrredPopupHeight(), SWT.RESIZE, true); |
| } |
| |
| /** |
| * Constructs a new {@link RichTextControlSWTRenderer}. |
| * |
| * @param vElement the view model element to be rendered |
| * @param viewContext the view context |
| * @param reportService The {@link ReportService} |
| * @param emfFormsDatabinding The {@link EMFFormsDatabinding} |
| * @param emfFormsLabelProvider The {@link EMFFormsLabelProvider} |
| * @param vtViewTemplateProvider The {@link VTViewTemplateProvider} |
| * @param emfFormsEditSupport The {@link EMFFormsEditSupport} |
| */ |
| @Inject |
| public RichTextControlSWTRenderer( |
| VControl vElement, |
| ViewModelContext viewContext, |
| ReportService reportService, |
| EMFFormsDatabinding emfFormsDatabinding, |
| EMFFormsLabelProvider emfFormsLabelProvider, |
| VTViewTemplateProvider vtViewTemplateProvider, EMFFormsEditSupport emfFormsEditSupport) { |
| super(vElement, viewContext, reportService, emfFormsDatabinding, emfFormsLabelProvider, vtViewTemplateProvider, |
| emfFormsEditSupport); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * Databinding is set to SWT.Modify, because we cannot guarantee that the focus of the text field is lost after the |
| * popup windows is closed. |
| * |
| * @see org.eclipse.emf.ecp.view.spi.core.swt.renderer.TextControlSWTRenderer#bindValue(org.eclipse.swt.widgets.Control, |
| * org.eclipse.core.databinding.observable.value.IObservableValue, |
| * org.eclipse.core.databinding.DataBindingContext, org.eclipse.core.databinding.UpdateValueStrategy, |
| * org.eclipse.core.databinding.UpdateValueStrategy) |
| */ |
| @Override |
| protected Binding bindValue(Control text, IObservableValue modelValue, DataBindingContext dataBindingContext, |
| UpdateValueStrategy targetToModel, UpdateValueStrategy modelToTarget) { |
| final IObservableValue value = WidgetProperties.text(SWT.Modify).observe(this.text); |
| final Binding binding = dataBindingContext.bindValue(value, modelValue, targetToModel, modelToTarget); |
| return binding; |
| } |
| |
| @Override |
| protected Control createSWTControl(Composite parent) { |
| final Composite composite = new Composite(parent, SWT.NONE); |
| GridLayoutFactory.fillDefaults().numColumns(1).equalWidth(true).applyTo(composite); |
| text = new Text(composite, getTextWidgetStyle()); |
| text.setData(CUSTOM_VARIANT, getTextVariantID()); |
| text.setEditable(false); |
| text.setMessage(getTextMessage()); |
| final GridDataFactory gdf = GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER) |
| .grab(true, true).span(1, 1); |
| final EMFFormsEditSupport editSupport = getEMFFormsEditSupport(); |
| if (editSupport.isMultiLine(getVElement().getDomainModelReference(), getViewModelContext().getDomainModel())) { |
| gdf.hint(50, getTextHeightHint());// set x hint to enable wrapping |
| } |
| textGridData = gdf.create(); |
| text.setLayoutData(textGridData); |
| text.addMouseListener(new OpenPopupHandler(text)); |
| text.addModifyListener(new ModifyListener() { |
| |
| @Override |
| public void modifyText(ModifyEvent e) { |
| textGridData.heightHint = getTextHeightHint(); |
| text.setLayoutData(textGridData); |
| EMFFormsSWTLayoutUtil.adjustParentSize(text); |
| |
| } |
| }); |
| return composite; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.ecp.view.spi.core.swt.AbstractControlSWTRenderer#postInit() |
| */ |
| @Override |
| protected void postInit() { |
| // TODO Auto-generated method stub |
| super.postInit(); |
| } |
| |
| /** |
| * The preferred height in pixels for the text control. |
| * |
| * @return the height hint |
| * @see GridData#heightHint |
| */ |
| protected int getTextHeightHint() { |
| if (text == null || text.isDisposed()) { |
| return -1; |
| } |
| final int lineCount = text.getLineCount(); |
| int height = lineCount * text.getLineHeight(); |
| final int maxHeight = getMaxTextHeight(); |
| final int minHeight = getMinTextHeight(); |
| if (height > maxHeight) { |
| height = maxHeight; |
| } else if (height < minHeight) { |
| height = minHeight; |
| } |
| return height; |
| } |
| |
| /** |
| * The maximum height in pixels for the text control. |
| * |
| * @return the maximum height |
| */ |
| protected int getMaxTextHeight() { |
| if (text == null || text.isDisposed()) { |
| return -1; |
| } |
| return getMaxVisibleLines() * text.getLineHeight(); |
| } |
| |
| /** |
| * The minimum height in pixels for the text control. |
| * |
| * @return the minimum height |
| */ |
| protected int getMinTextHeight() { |
| if (text == null || text.isDisposed()) { |
| return -1; |
| } |
| return getMinVisibleLines() * text.getLineHeight(); |
| } |
| |
| /** |
| * The minimum number of visible lines in the text control. |
| * |
| * @return the minimum visible lines |
| */ |
| protected int getMinVisibleLines() { |
| return 2; |
| } |
| |
| /** |
| * The maximum number of visible lines in the text control. |
| * |
| * @return the maximum visible lines |
| */ |
| protected int getMaxVisibleLines() { |
| return 10; |
| } |
| |
| } |