/*
* (C) Copyright IBM Corp. 1998-2004. All Rights Reserved.
*
* The program is provided "as is" without any warranty express or
* implied, including the warranty of non-infringement and the implied
* warranties of merchantibility and fitness for a particular purpose.
* IBM will not be liable for any damages suffered by you as a result
* of using the Program. In no event will IBM be liable for any
* special, indirect or consequential damages or lost profits even if
* IBM has been advised of the possibility of their occurrence. IBM
* will not be liable for any third party claims against you.
*/
package com.ibm.richtext.test.unit;
import com.ibm.icu.dev.test.TestFmwk;
import com.ibm.richtext.textlayout.attributes.AttributeMap;
import com.ibm.richtext.textlayout.attributes.TextAttribute;
import com.ibm.richtext.styledtext.MText;
import com.ibm.richtext.styledtext.MConstText;
import com.ibm.richtext.styledtext.StandardTabRuler;
import com.ibm.richtext.styledtext.StyledText;
import com.ibm.richtext.textformat.TextOffset;
import com.ibm.richtext.textformat.MFormatter;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.util.Hashtable;
public final class TestFormatter extends TestFmwk {
static final String COPYRIGHT =
"(C) Copyright IBM Corp. 1998-1999 - All Rights Reserved";
public static void main(String[] args) throws Exception {
new TestFormatter().run(args);
}
private static final Point ORIGIN = new Point(0, 0);
private static final AttributeMap DEFAULTS;
static {
final Float floatZero = new Float(0.0f);
Hashtable defaults = new Hashtable();
defaults.put(TextAttribute.FAMILY, "Serif");
defaults.put(TextAttribute.WEIGHT, new Float(1.0f));
defaults.put(TextAttribute.POSTURE, floatZero);
defaults.put(TextAttribute.SIZE, new Float(18.0f));
defaults.put(TextAttribute.SUPERSCRIPT, new Integer(0));
defaults.put(TextAttribute.FOREGROUND, Color.black);
defaults.put(TextAttribute.UNDERLINE, new Integer(-1));
defaults.put(TextAttribute.STRIKETHROUGH, Boolean.FALSE);
defaults.put(TextAttribute.EXTRA_LINE_SPACING, floatZero);
defaults.put(TextAttribute.FIRST_LINE_INDENT, floatZero);
defaults.put(TextAttribute.MIN_LINE_SPACING, floatZero);
defaults.put(TextAttribute.LINE_FLUSH, TextAttribute.FLUSH_LEADING);
defaults.put(TextAttribute.LEADING_MARGIN, floatZero);
defaults.put(TextAttribute.TRAILING_MARGIN, floatZero);
defaults.put(TextAttribute.TAB_RULER, new StandardTabRuler());
DEFAULTS = new AttributeMap(defaults);
}
// arg to testLineExceptions
private static final int UNKNOWN = -1;
private Graphics fGraphics;
public TestFormatter() {
fGraphics = new BufferedImage(100, 100, BufferedImage.TYPE_3BYTE_BGR).getGraphics();
//JDK 1.1:
//Frame f = new Frame();
//f.show();
//fGraphics = f.getGraphics();
}
private String fiveLines = "a\nb\nc\nd\ne";
private String twelveLines = fiveLines + "\n" + fiveLines + "\nf\n";
AttributeMap PLAIN = AttributeMap.EMPTY_ATTRIBUTE_MAP;
public void test() {
MConstText text = new StyledText(fiveLines, PLAIN);
_testLineExceptions(makeFormatter(text, 100, true), 5);
_testLineAccess(makeFormatter(text, 100, true), 5);
text = new StyledText(twelveLines, PLAIN);
_testLineExceptions(makeFormatter(text, 3, false), 12);
_testLineAccess(makeFormatter(text, 100, true), 12);
_testWithModification();
}
private void _testWithModification() {
MText text = new StyledText(fiveLines, PLAIN);
MFormatter formatter = makeFormatter(text, 100, true);
Rectangle viewRect = new Rectangle(0, 0, 100, Integer.MAX_VALUE);
formatter.stopBackgroundFormatting();
text.append(new StyledText("\n", PLAIN));
formatter.updateFormat(text.length()-1, 1, viewRect, ORIGIN);
_testLineAccess(formatter, 6);
formatter.stopBackgroundFormatting();
text.append(new StyledText("ad", PLAIN));
formatter.updateFormat(text.length()-2, 2, viewRect, ORIGIN);
_testLineAccess(formatter, 6);
_testLineExceptions(formatter, 6);
formatter.stopBackgroundFormatting();
text.remove(0, 1);
formatter.updateFormat(0, 0, viewRect, ORIGIN);
_testLineAccess(formatter, 6);
_testLineExceptions(formatter, 6);
}
private MFormatter makeFormatter(MConstText text,
int lineBound,
boolean wrap) {
return MFormatter.createFormatter(text,
DEFAULTS,
lineBound,
wrap,
fGraphics);
}
private void _testLineExceptions(MFormatter formatter,
int numLines) {
if (numLines == UNKNOWN) {
numLines = formatter.getLineCount();
}
boolean caught = false;
try {
formatter.lineRangeLow(numLines);
}
catch(IllegalArgumentException e) {
caught = true;
}
if (!caught) {
errln("Didn't get exception");
}
caught = false;
try {
formatter.lineRangeLimit(numLines);
}
catch(IllegalArgumentException e) {
caught = true;
}
if (!caught) {
errln("Didn't get exception");
}
caught = false;
try {
formatter.lineGraphicStart(numLines+1);
}
catch(IllegalArgumentException e) {
caught = true;
}
if (!caught) {
errln("Didn't get exception");
}
caught = false;
}
private void _testLineAccess(MFormatter formatter,
int numLines) {
if (numLines == UNKNOWN) {
numLines = formatter.getLineCount();
}
if (formatter.lineGraphicStart(0) != 0) {
errln("Line 0 doesn't start at height 0");
}
if (formatter.lineRangeLow(0) != 0) {
errln("Line 0 doesn't start at character 0");
}
int lastLimit = formatter.lineRangeLimit(0);
final int lineBound = formatter.lineBound();
int[] hitX = new int[] { -1, 1, lineBound + 2 };
TextOffset offset = new TextOffset();
for (int i=1; i < numLines; i++) {
int height = formatter.lineGraphicStart(i);
if (lastLimit != formatter.lineRangeLow(i)) {
errln("lastLine limit is not current line start");
}
int limit = formatter.lineRangeLimit(i);
if (limit < lastLimit || (limit == lastLimit && i != numLines-1)) {
errln("line has negative or 0 length");
}
int nextHeight = formatter.lineGraphicStart(i+1);
if (nextHeight <= height) {
errln("0-height line");
}
int incAmount = Math.max((nextHeight-height)/4, 1);
for (int hitY = height; hitY < nextHeight; hitY += incAmount) {
if (formatter.lineAtHeight(hitY) != i) {
errln("lineAtHeight is wrong");
}
for (int j=0; j < hitX.length; j++) {
offset = formatter.pointToTextOffset(offset,
hitX[j], hitY, ORIGIN, null, false);
if (offset.fOffset < lastLimit || offset.fOffset > limit) {
errln("Inconsistent offset from pointToTextOffset");
}
//if (formatter.lineContaining(offset) != i) {
// int debug = formatter.lineContaining(offset);
// errln("lineContaining is incorrect");
//}
}
}
lastLimit = limit;
}
}
}