private TextLine makeTextLineOnRange(int startPos, int limitPos) {
int[] charsLtoV = null;
byte[] charLevels = null;
if (fBidi != null) {
Bidi lineBidi = fBidi.createLineBidi(startPos, limitPos);
charLevels = BidiUtils.getLevels(lineBidi);
int[] charsVtoL = BidiUtils.createVisualToLogicalMap(charLevels);
charsLtoV = BidiUtils.createInverseMap(charsVtoL);
}
TextLineComponent[] components = makeComponentsOnRange(startPos, limitPos);
return new TextLine(
fFrc,
components,
fBaselineOffsets,
fChars,
startPos,
limitPos,
charsLtoV,
charLevels,
fIsDirectionLTR);
}
public void testIncompatibleLineAlgorithm() {
// ICU treat a new line as in the same run, however RI does not
bd =
new Bidi(
"aaaaa".toCharArray(),
0,
new byte[] {-2, -1, -3, -3, -2},
0,
5,
Bidi.DIRECTION_RIGHT_TO_LEFT);
Bidi line = bd.createLineBidi(1, 4);
assertFalse(line.baseIsLeftToRight());
assertEquals(1, line.getBaseLevel());
assertEquals(3, line.getLength());
assertEquals(1, line.getLevelAt(0));
assertEquals(1, line.getLevelAt(1));
assertEquals(1, line.getLevelAt(2));
assertEquals(1, line.getLevelAt(1000));
assertEquals(1, line.getRunCount());
assertRunArrayEquals(
new int[][] {
{0, 3, 1},
},
line);
assertFalse(line.isLeftToRight());
assertFalse(line.isMixed());
assertTrue(line.isRightToLeft());
}
public void testCreateLineBidi() {
bd =
new Bidi(
"a\u05D0a\u05D0a\u05D0\"\u05D0a".toCharArray(),
0,
new byte[] {0, 0, 0, -3, -3, 2, 2, 0, 3},
0,
9,
Bidi.DIRECTION_RIGHT_TO_LEFT);
Bidi line = bd.createLineBidi(2, 7);
assertFalse(line.baseIsLeftToRight());
assertEquals(1, line.getBaseLevel());
assertEquals(5, line.getLength());
assertEquals(2, line.getLevelAt(0));
assertEquals(3, line.getLevelAt(1));
assertEquals(3, line.getLevelAt(2));
assertEquals(3, line.getLevelAt(3));
assertEquals(2, line.getLevelAt(4));
assertEquals(1, line.getLevelAt(1000));
assertEquals(3, line.getRunCount());
assertRunArrayEquals(
new int[][] {
{0, 1, 2}, {1, 4, 3}, {4, 5, 2},
},
line);
assertFalse(line.isLeftToRight());
assertTrue(line.isMixed());
assertFalse(line.isRightToLeft());
}
public void testCreateLineBidiInvalid() {
// regression for HARMONY-1050
Bidi bidi = new Bidi("str", 1);
try {
bidi.createLineBidi(-1, 1);
fail("Expected IAE");
} catch (IllegalArgumentException e) {
// Expected
}
try {
bidi.createLineBidi(1, -1);
fail("Expected IAE");
} catch (IllegalArgumentException e) {
// Expected
}
try {
bidi.createLineBidi(-1, -1);
fail("Expected IAE");
} catch (IllegalArgumentException e) {
// Expected
}
try {
bidi.createLineBidi(2, 1);
fail("Expected IAE");
} catch (IllegalArgumentException e) {
// Expected
}
try {
bidi.createLineBidi(2, 2);
} catch (IllegalArgumentException e) {
// Expected
}
try {
bidi.createLineBidi(2, 4);
fail("Expected IAE");
} catch (IllegalArgumentException e) {
// Expected
}
}