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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
* Juan Cadavid (CEA LIST) juan.cadavid@cea.fr - Override of the paintCell() method
*
*****************************************************************************/
package org.eclipse.papyrus.infra.nattable.configuration;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.nebula.widgets.nattable.config.IConfigRegistry;
import org.eclipse.nebula.widgets.nattable.layer.ILayer;
import org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell;
import org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter;
import org.eclipse.nebula.widgets.nattable.resize.command.RowResizeCommand;
import org.eclipse.nebula.widgets.nattable.style.CellStyleUtil;
import org.eclipse.nebula.widgets.nattable.style.DisplayMode;
import org.eclipse.nebula.widgets.nattable.style.IStyle;
import org.eclipse.papyrus.infra.nattable.utils.Constants;
import org.eclipse.papyrus.infra.nattable.utils.ILabelProviderContextElement;
import org.eclipse.papyrus.infra.nattable.utils.LabelProviderCellContextElement;
import org.eclipse.papyrus.infra.nattable.utils.NattableConfigAttributes;
import org.eclipse.papyrus.infra.services.labelprovider.service.LabelProviderService;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
/**
* Custom CellPainter to define the LabelProvider to use
*
* @author Vincent Lorenzo
*
*/
//FIXME : we should use the TextPainter itself, now with the GenericDisplayConverter, it should works fine
public class CustomizedCellPainter extends TextPainter {
/**
*
* Constructor. We're overriding it to always set word-wrapping for our cells.
*
*/
public CustomizedCellPainter() {
super(false, true);//with (true,true), automatic newLine when the text is too long to be displayed.
}
/**
*
* @see org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter#convertDataType(org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell,
* org.eclipse.nebula.widgets.nattable.config.IConfigRegistry)
*
* @param cell
* @param configRegistry
* @return
*/
@Override
protected String convertDataType(final ILayerCell cell, final IConfigRegistry configRegistry) {
final LabelProviderService serv = configRegistry.getConfigAttribute(NattableConfigAttributes.LABEL_PROVIDER_SERVICE_CONFIG_ATTRIBUTE, DisplayMode.NORMAL, NattableConfigAttributes.LABEL_PROVIDER_SERVICE_ID);
final ILabelProviderContextElement contextElement = new LabelProviderCellContextElement(cell, configRegistry);
final ILabelProvider provider = serv.getLabelProvider(Constants.TABLE_LABEL_PROVIDER_CONTEXT, contextElement);
String str = provider.getText(contextElement);
if(str == null) {
str = ""; //$NON-NLS-1$
}
return str;
}
/**
* Overridden to show, additionally to the contents of a cell, a vertical arrow pointing down in case there are masked lines
*
* @see org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter#paintCell(org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell,
* org.eclipse.swt.graphics.GC, org.eclipse.swt.graphics.Rectangle, org.eclipse.nebula.widgets.nattable.config.IConfigRegistry)
*
* @param cell
* @param gc
* @param rectangle
* @param configRegistry
*/
@Override
public void paintCell(ILayerCell cell, GC gc, Rectangle rectangle, IConfigRegistry configRegistry) {
super.paintCell(cell, gc, rectangle, configRegistry);
IStyle cellStyle = CellStyleUtil.getCellStyle(cell, configRegistry);
int fontHeight = gc.getFontMetrics().getHeight();
String text = convertDataType(cell, configRegistry);
text = getTextToDisplay(cell, gc, rectangle.width, text);
int numberOfNewLines = getNumberOfNewLines(text);
//we're extending the row height (only if word wrapping is enabled)
int contentHeight = (fontHeight * numberOfNewLines) + (spacing * 2);
int contentToCellDiff = (cell.getBounds().height - rectangle.height);
if(performRowResize(contentHeight, rectangle)) {
ILayer layer = cell.getLayer();
layer.doCommand(new RowResizeCommand(layer, cell.getRowPosition(), contentHeight + contentToCellDiff));
}
if(numberOfNewLines > 1) {
int yStartPos = rectangle.y + CellStyleUtil.getVerticalAlignmentPadding(cellStyle, rectangle, contentHeight);
String[] lines = text.split("\n"); //$NON-NLS-1$
for(String line : lines) {
int lineContentWidth = Math.min(getLengthFromCache(gc, line), rectangle.width);
Image im = org.eclipse.papyrus.infra.widgets.Activator.getDefault().getImage("org.eclipse.papyrus.infra.nattable", "/icons/arrow_down_end.png"); //$NON-NLS-1$ //$NON-NLS-2$
gc.drawText(line, rectangle.x + CellStyleUtil.getHorizontalAlignmentPadding(cellStyle, rectangle, lineContentWidth) + spacing, yStartPos + spacing, SWT.DRAW_TRANSPARENT | SWT.DRAW_DELIMITER);
//We test if, given the current cell size and text position, we should display the down pointing arrow.
if(contentHeight > rectangle.height && yStartPos + fontHeight > rectangle.height + rectangle.y) {
int yDownRowIcon = rectangle.y + rectangle.height - im.getBounds().height;
int xDownRowIcon = rectangle.x + rectangle.width - im.getBounds().width;
gc.drawImage(im, xDownRowIcon, yDownRowIcon);
}
//after every line calculate the y start pos new
yStartPos += fontHeight;
}
}
}
}
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