/*******************************************************************************
* Copyright (c) 2012 Original authors 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:
* Original authors and others - initial API and implementation
******************************************************************************/
package org.eclipse.nebula.widgets.nattable.painter.cell;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.nebula.widgets.nattable.NatTable;
import org.eclipse.nebula.widgets.nattable.config.CellConfigAttributes;
import org.eclipse.nebula.widgets.nattable.config.ConfigRegistry;
import org.eclipse.nebula.widgets.nattable.grid.cell.AlternatingRowConfigLabelAccumulator;
import org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell;
import org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes;
import org.eclipse.nebula.widgets.nattable.style.DisplayMode;
import org.eclipse.nebula.widgets.nattable.style.IStyle;
import org.eclipse.nebula.widgets.nattable.style.Style;
import org.eclipse.nebula.widgets.nattable.test.fixture.NatTableFixture;
import org.eclipse.nebula.widgets.nattable.util.GUIHelper;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class TextRenderingTest {
private NatTable natTable;
private ConfigRegistry configRegistry;
private TextPainter cellPainter;
private GC gc;
private Font defaultFont;
@Before
public void setUp() throws Exception {
natTable = new NatTableFixture();
configRegistry = (ConfigRegistry) natTable.getConfigRegistry();
cellPainter = new TextPainter();
gc = new GC(Display.getDefault());
}
@After
public void tearDown() {
if (defaultFont != null) {
defaultFont.dispose();
}
gc.dispose();
}
@Test
public void gcShouldHaveConfiguredBoldFont() {
registerFont(new FontData("Verdana", 10, SWT.BOLD));
verifyFontAttributes();
}
@Test
public void gcShouldHaveConfiguredItalicFont() {
registerFont(new FontData("Verdana", 10, SWT.BOLD | SWT.ITALIC));
verifyFontAttributes();
}
@Test
public void testWhitespacePattern() {
Pattern pattern = Pattern.compile("\\s*$");
Matcher matcher = pattern.matcher("012345 ");
Assert.assertTrue(matcher.find());
Assert.assertEquals(6, matcher.start());
matcher = pattern.matcher("0123");
Assert.assertTrue(matcher.find());
Assert.assertEquals(4, matcher.start());
matcher = pattern.matcher("");
Assert.assertTrue(matcher.find());
Assert.assertEquals(0, matcher.start());
pattern = Pattern.compile("\\s+\\S+\\s*$");
matcher = pattern.matcher(" Blah blah blah theEnd ");
Assert.assertTrue(matcher.find());
Assert.assertEquals(19, matcher.start());
}
@Test
public void testLineBreak() {
Assert.assertEquals("", "012345".substring(6));
}
private void registerFont(FontData fontData) {
// Register default body font
Style cellStyle = new Style();
defaultFont = GUIHelper.getFont(fontData);
cellStyle.setAttributeValue(CellStyleAttributes.FONT, defaultFont);
configRegistry.registerConfigAttribute(CellConfigAttributes.CELL_STYLE,
cellStyle, DisplayMode.NORMAL,
AlternatingRowConfigLabelAccumulator.ODD_ROW_CONFIG_TYPE);
}
private void verifyFontAttributes() {
// Check cell font attributes
ILayerCell cell = natTable.getCellByPosition(2, 2);
final FontData expectedFontData = defaultFont.getFontData()[0];
IStyle cellStyle = configRegistry.getConfigAttribute(
CellConfigAttributes.CELL_STYLE, cell.getDisplayMode(), cell
.getConfigLabels().getLabels());
final FontData actualFontData = cellStyle.getAttributeValue(
CellStyleAttributes.FONT).getFontData()[0];
Assert.assertEquals(actualFontData.getName(),
expectedFontData.getName());
Assert.assertEquals(actualFontData.getHeight(),
expectedFontData.getHeight());
Assert.assertEquals(actualFontData.getStyle(),
expectedFontData.getStyle());
// Draw font
cellPainter.setupGCFromConfig(gc, cellStyle);
final FontData exepectedDrawnFontData = gc.getFont().getFontData()[0];
Assert.assertEquals(actualFontData.getName(),
exepectedDrawnFontData.getName());
Assert.assertEquals(actualFontData.getHeight(),
exepectedDrawnFontData.getHeight());
Assert.assertEquals(actualFontData.getStyle(),
exepectedDrawnFontData.getStyle());
}
@Test
public void testLineWrap() {
String testString1 = "Hello Mister,\nhow are you?\nI'm fine!";
String testString2 = "Hello Mister,\rhow are you?\rI'm fine!";
String testString3 = "Hello Mister,\n\rhow are you?\n\rI'm fine!";
String testString4 = "Hello Mister,\r\nhow are you?\r\nI'm fine!";
Assert.assertEquals(3, cellPainter.getNumberOfNewLines(testString1));
Assert.assertEquals(3, cellPainter.getNumberOfNewLines(testString2));
Assert.assertEquals(3, cellPainter.getNumberOfNewLines(testString3));
Assert.assertEquals(3, cellPainter.getNumberOfNewLines(testString4));
}
}