@Test
public void test_getNextOffset2() {
if (SwtTestUtil.isGTK || SwtTestUtil.isCocoa) {
// TODO Fix GTK and Cocoa failure.
if (SwtTestUtil.verbose) {
System.out.println(
"Excluded test_getNextOffset2(org.eclipse.swt.tests.junit.Test_org_eclipse_swt_graphics_TextLayout)");
}
return;
}
// Text thai cluster separate so it can be excluded
// for gtk, testing machine (rhel4) is too old to
// support thai.
TextLayout layout = new TextLayout(display);
layout.setText("A\u0E19\u0E49\u0E33B");
String[] messages = {
"no segments",
"segments",
"segments (duplicate at 0)",
"segments (duplicate at 1)",
"segments (duplicate at 2)",
"segments (duplicate at 3)",
"segments (duplicate at 4)",
"segments (duplicate at 5)"
};
// int[][] segments = {null, {0, 1, 2, 3, 4, 5}, {0, 0, 1, 2, 3, 4, 5}, {0, 1, 1, 2, 3, 4,
// 5}, {0, 1, 2, 2, 3, 4, 5}, {0, 1, 2, 3, 3, 4, 5},
// {0, 1, 2, 3, 4, 4, 5}, {0, 1, 2, 3, 4, 5, 5}};
int[][] segments = {null};
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, 4, layout.getNextOffset(1, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 5, layout.getNextOffset(4, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 4, layout.getPreviousOffset(5, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 1, layout.getPreviousOffset(4, SWT.MOVEMENT_CLUSTER));
assertEquals(m, 0, layout.getPreviousOffset(1, SWT.MOVEMENT_CLUSTER));
}
layout.dispose();
}
int validateOffset(TextLayout layout, int offset) {
int nextOffset = layout.getNextOffset(offset, SWT.MOVEMENT_CLUSTER);
if (nextOffset != offset) return layout.getPreviousOffset(nextOffset, SWT.MOVEMENT_CLUSTER);
return offset;
}
@Test
public void test_getNextOffset() {
if (SwtTestUtil.isCocoa) {
// TODO Fix Cocoa failure.
if (SwtTestUtil.verbose) {
System.out.println(
"Excluded test_getNextOffset(org.eclipse.swt.tests.junit.Test_org_eclipse_swt_graphics_TextLayout).");
}
return;
}
TextLayout layout = new TextLayout(display);
String text;
int offset;
text = "word word word";
layout.setText(text);
offset = 0;
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_END);
assertEquals(4, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_END);
assertEquals(9, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_END);
assertEquals(14, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_END);
assertEquals(9, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_END);
assertEquals(4, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_END);
assertEquals(0, offset);
assertEquals(4, layout.getNextOffset(2, SWT.MOVEMENT_WORD_END));
assertEquals(4, layout.getNextOffset(3, SWT.MOVEMENT_WORD_END));
assertEquals(9, layout.getNextOffset(8, SWT.MOVEMENT_WORD_END));
assertEquals(14, layout.getNextOffset(10, SWT.MOVEMENT_WORD_END));
assertEquals(14, layout.getNextOffset(13, SWT.MOVEMENT_WORD_END));
assertEquals(14, layout.getNextOffset(14, SWT.MOVEMENT_WORD_END));
assertEquals(0, layout.getPreviousOffset(0, SWT.MOVEMENT_WORD_END));
assertEquals(0, layout.getPreviousOffset(4, SWT.MOVEMENT_WORD_END));
assertEquals(4, layout.getPreviousOffset(5, SWT.MOVEMENT_WORD_END));
assertEquals(9, layout.getPreviousOffset(10, SWT.MOVEMENT_WORD_END));
assertEquals(9, layout.getPreviousOffset(11, SWT.MOVEMENT_WORD_END));
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);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(10, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(5, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(0, offset);
assertEquals(5, layout.getNextOffset(2, SWT.MOVEMENT_WORD_START));
assertEquals(5, layout.getNextOffset(4, SWT.MOVEMENT_WORD_START));
assertEquals(10, layout.getNextOffset(9, SWT.MOVEMENT_WORD_START));
assertEquals(14, layout.getNextOffset(10, SWT.MOVEMENT_WORD_START));
assertEquals(14, layout.getNextOffset(13, SWT.MOVEMENT_WORD_START));
assertEquals(14, layout.getNextOffset(14, SWT.MOVEMENT_WORD_START));
assertEquals(0, layout.getPreviousOffset(0, SWT.MOVEMENT_WORD_START));
assertEquals(0, layout.getPreviousOffset(3, SWT.MOVEMENT_WORD_START));
assertEquals(0, layout.getPreviousOffset(4, SWT.MOVEMENT_WORD_START));
assertEquals(0, layout.getPreviousOffset(5, SWT.MOVEMENT_WORD_START));
assertEquals(5, layout.getPreviousOffset(6, SWT.MOVEMENT_WORD_START));
text = "AB \u05E9\u05E0 CD\nHello";
layout.setText(text);
offset = 0;
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(3, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(6, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(8, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(6, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(3, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(0, offset);
offset = 7;
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(8, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(9, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(text.length(), offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(9, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_WORD_START);
assertEquals(8, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_CLUSTER);
assertEquals(9, offset);
offset = layout.getNextOffset(offset, SWT.MOVEMENT_CLUSTER);
assertEquals(10, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_CLUSTER);
assertEquals(9, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_CLUSTER);
assertEquals(8, offset);
offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_CLUSTER);
assertEquals(7, offset);
for (int i = 0; i < text.length(); i++) {
assertEquals(i + 1, layout.getNextOffset(i, SWT.MOVEMENT_CLUSTER));
}
for (int i = text.length(); i > 0; i--) {
assertEquals(i - 1, layout.getPreviousOffset(i, SWT.MOVEMENT_CLUSTER));
}
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();
}