Rectangle[] getRectangles(int linkIndex) {
int lineCount = layout.getLineCount();
Rectangle[] rects = new Rectangle[lineCount];
int[] lineOffsets = layout.getLineOffsets();
Point point = offsets[linkIndex];
int lineStart = 1;
while (point.x > lineOffsets[lineStart]) lineStart++;
int lineEnd = 1;
while (point.y > lineOffsets[lineEnd]) lineEnd++;
int index = 0;
if (lineStart == lineEnd) {
rects[index++] = layout.getBounds(point.x, point.y);
} else {
rects[index++] = layout.getBounds(point.x, lineOffsets[lineStart] - 1);
rects[index++] = layout.getBounds(lineOffsets[lineEnd - 1], point.y);
if (lineEnd - lineStart > 1) {
for (int i = lineStart; i < lineEnd - 1; i++) {
rects[index++] = layout.getLineBounds(i);
}
}
}
if (rects.length != index) {
Rectangle[] tmp = new Rectangle[index];
System.arraycopy(rects, 0, tmp, 0, index);
rects = tmp;
}
return rects;
}
@Test
public void test_getLineOffsets() {
TextLayout layout = new TextLayout(display);
String text = "0123456\n890123\n";
layout.setText(text);
int[] offsets = layout.getLineOffsets();
int[] expected = new int[] {0, 8, 15, 15};
for (int i = 0; i < offsets.length; i++) {
assertEquals(expected[i], offsets[i]);
}
layout.setText("");
offsets = layout.getLineOffsets();
expected = new int[] {0, 0};
for (int i = 0; i < offsets.length; i++) {
assertEquals(expected[i], offsets[i]);
}
layout.setText("\n");
offsets = layout.getLineOffsets();
expected = new int[] {0, 1, 1};
for (int i = 0; i < offsets.length; i++) {
assertEquals(expected[i], offsets[i]);
}
layout.setText("WMWM");
int width = layout.getBounds().width;
layout.setWidth(width / 4 + 1);
offsets = layout.getLineOffsets();
expected = new int[] {0, 1, 2, 3, 4};
for (int i = 0; i < offsets.length; i++) {
assertEquals(expected[i], offsets[i]);
}
layout.setWidth(width / 2 + 1);
offsets = layout.getLineOffsets();
expected = new int[] {0, 2, 4};
for (int i = 0; i < offsets.length; i++) {
assertEquals(expected[i], offsets[i]);
}
layout.dispose();
}
@Test
public void test_getSegments() {
TextLayout layout = new TextLayout(display);
layout.setText("AB");
String[] messages = {
"no segments",
"segments",
"segments (duplicate at 0)",
"segments (duplicate at 1)",
"segments (duplicate at 2)"
};
int[][] segments = {null, {0, 1, 2}, {0, 0, 1, 2}, {0, 1, 1, 2}, {0, 1, 2, 2}};
for (int i = 0; i < segments.length; i++) {
String m = messages[i];
layout.setSegments(segments[i]);
assertEquals(m, 1, layout.getNextOffset(0, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 2, layout.getNextOffset(1, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 2, layout.getNextOffset(2, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 1, layout.getPreviousOffset(2, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 0, layout.getPreviousOffset(1, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 0, layout.getPreviousOffset(0, SWT.MOVEMENT_CLUSTER));
}
// Bug 295513
layout.setText("Line");
layout.setAscent(20);
layout.setDescent(6);
layout.setSegments(new int[] {0, layout.getText().length()});
layout.getBounds();
layout.dispose();
layout = new TextLayout(display);
// Bug 241482 comment 74
layout.setText("word word word");
layout.setSegments(new int[] {0, 5, 10});
int offset = 0;
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(5, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(10, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(14, offset);
layout.setWidth(layout.getBounds().width / 2);
layout.setAscent(20);
layout.setDescent(6);
offset = 0;
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(5, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(10, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(14, offset);
layout.dispose();
layout = new TextLayout(display);
// Bug 241482 comment 64
layout.setText("\nAB");
layout.setSegments(new int[] {0, 1, 3});
int[] expected = new int[] {0, 1, 3};
int[] offsets = layout.getLineOffsets();
for (int i = 0; i < offsets.length; i++) {
assertEquals(" i = " + i, expected[i], offsets[i]);
}
layout.dispose();
layout = new TextLayout(display);
// Bug 241482 comment 80
layout.setText("MNMNMN");
layout.setSegments(new int[] {0, 1, 6});
layout.getBounds();
assertEquals(
layout.getText().length() - 1, layout.getOffset(layout.getBounds().width, 0, null));
layout.setAscent(9);
assertEquals(
layout.getText().length() - 1, layout.getOffset(layout.getBounds().width, 0, null));
layout.dispose();
layout = new TextLayout(display);
// Bug 486600 comment 2
layout.setText("Abcdef\nGhij\nKl");
Rectangle bounds1 = layout.getBounds(0, 6 - 1);
int[] trailing = new int[1];
offset = layout.getOffset(bounds1.width, bounds1.height + 2, trailing);
assertEquals(10, offset);
assertEquals(1, trailing[0]);
layout.dispose();
layout = new TextLayout(display);
layout.setText("AbcdefGhijKl");
layout.setSegments(new int[] {6, 10});
layout.setSegmentsChars(new char[] {'\n', '\n'});
bounds1 = layout.getBounds(0, 6 - 1);
trailing = new int[1];
offset = layout.getOffset(bounds1.width, bounds1.height + 2, trailing);
assertEquals(9, offset);
assertEquals(1, trailing[0]);
layout.dispose();
layout = new TextLayout(display);
// Lina's bug (bug 241482, comment 37)
boolean doit = false; // known to be broken
if (doit) {
int length = layout.getText().length();
layout.setSegments(new int[] {length});
trailing = new int[1];
int width = layout.getBounds().width + 20;
assertEquals("hit test to the left", 0, layout.getOffset(0, 0, trailing));
assertEquals("hit test to the left (trailing)", 0, trailing[0]);
assertEquals("hit test to the right", length - 1, layout.getOffset(width, 0, trailing));
assertEquals("hit test to the right (trailing)", 1, trailing[0]);
layout.setSegmentsChars(new char[] {'*'});
assertEquals("hit test to the left", 0, layout.getOffset(0, 0, trailing));
assertEquals("hit test to the left (trailing)", 0, trailing[0]);
assertEquals("hit test to the right", length - 1, layout.getOffset(width, 0, trailing));
assertEquals("hit test to the right (trailing)", 1, trailing[0]);
}
/* wrong: internal testing */
// String text = "AB";
// int textLength = text.length();
// layout.setText(text);
// messages = new String [] {
// "no segments",
// "segments",
// "segments (duplicate at 0)",
// "segments (duplicate at 1)",
// "segments (duplicate at 2)" };
// segments = new int [][] {
// null,
// { 0, 1, 2 },
// { 0, 0, 1, 2 },
// { 0, 1, 1, 2 },
// { 0, 1, 2, 2 } };
// int[][] translatedOffsets = {
// { 0, 1, 2 },
// { 1, 3, 5 },
// { 2, 4, 6 },
// { 1, 4, 6 },
// { 1, 3, 6 } };
// int[][] untranslatedOffsets = {
// { 0, 1, 2 },
// { 0, 0, 1, 1, 2, 2 },
// { 0, 0, 0, 1, 1, 2, 2 },
// { 0, 0, 1, 1, 1, 2, 2 },
// { 0, 0, 1, 1, 2, 2, 2 } };
// for (int i = 0; i < segments.length; i++) {
// layout.setSegments(segments[i]);
// layout.getBounds();
// for (int j = 0; j <= textLength; j++) {
// assertEquals(messages[i] + " j = " + j, translatedOffsets[i][j],
// layout.translateOffset(j));
// }
// for (int j = 0, n = layout.getSegments() == null ? 0 : textLength +
// layout.getSegments().length; j < n; j++) {
// assertEquals(messages[i] + " j = " + j, untranslatedOffsets[i][j],
// layout.untranslateOffset(j));
// }
// }
layout.dispose();
}
@Test
public void test_getSegmentsChars() {
if (SwtTestUtil.isCocoa) {
// TODO Fix Cocoa failure.
if (SwtTestUtil.verbose) {
System.out.println(
"Excluded test_getSegmentsChars(org.eclipse.swt.tests.junit.Test_org_eclipse_swt_graphics_TextLayout).");
}
return;
}
TextLayout layout = new TextLayout(display);
String text = "ab\u05d0\u05d1.\u05d2cd";
int textLength = text.length();
layout.setText(text);
String[] messages = {
"no segments",
"Embedding RTL dir test",
"Embedding LTR dir test",
"LRO test",
"RLO test",
"Traditional segments",
"Traditional segments invalid"
};
int[][] segments = {
null,
{0, 0, 4, 4, 5, 5, 8, 8},
{0, 0, 4, 4, 5, 5, 8, 8},
{0, textLength},
{0, textLength},
{0, 4, 8},
{1}
};
char[][] chars = {
null,
{'\u202a', '\u202b', '\u202c', '\u200e', '\u200e', '\u202b', '\u202c', '\u202c'},
{'\u202b', '\u202a', '\u202c', '\u200f', '\u200f', '\u202a', '\u202c', '\u202c'},
{0x202d, 0x202c},
{0x202e, 0x202c},
null,
null
};
int[][] levels = {
{0, 0, 1, 1, 1, 1, 0, 0},
{4, 4, 3, 3, 2, 3, 4, 4},
{2, 2, 3, 3, 1, 3, 2, 2},
{2, 2, 2, 2, 2, 2, 2, 2}, // Fails on cocoa, where it returns {0, 0, 0, 0, 0, 0, 0, 0}
{1, 1, 1, 1, 1, 1, 1, 1},
{0, 0, 1, 1, 0, 1, 0, 0},
{0, 0, 1, 1, 1, 1, 0, 0}
};
int[] offsets = {0, textLength};
for (int i = 0; i < segments.length; i++) {
layout.setSegments(segments[i]);
layout.setSegmentsChars(chars[i]);
assertArrayEquals("Test line offsets" + ": group: " + i, offsets, layout.getLineOffsets());
for (int j = 0; j < textLength; j++) {
assertEquals(
messages[i] + ": group: " + i + ", index: " + j, levels[i][j], layout.getLevel(j));
}
}
layout.dispose();
}
