public void testWrapAtFoldedLineBreak() throws IOException {
initText("abc\ndef");
addCollapsedFoldRegion(3, 4, "...");
configureSoftWraps(6);
verifySoftWrapPositions(4);
VisualLinesIterator it = createIterator(0);
assertFalse(it.atEnd());
it.advance();
assertFalse(it.atEnd());
it.advance();
assertTrue(it.atEnd());
}
public void testWrapAfterFolding() throws IOException {
initText("abcdefghij");
addCollapsedFoldRegion(1, 8, "...");
configureSoftWraps(4);
verifySoftWrapPositions(8);
VisualLinesIterator it = createIterator(0);
assertFalse(it.atEnd());
assertEquals(0, it.getVisualLineStartOffset());
assertEquals(0, it.getStartFoldingIndex());
it.advance();
assertFalse(it.atEnd());
assertEquals(8, it.getVisualLineStartOffset());
assertEquals(1, it.getStartFoldingIndex());
}
private int calculatePreferredWidth() {
if (checkDirty()) return 1;
assertValidState();
VisualLinesIterator iterator = new VisualLinesIterator(myView, 0);
int maxWidth = 0;
while (!iterator.atEnd()) {
int visualLine = iterator.getVisualLine();
int width = myLineWidths.get(visualLine);
if (width == UNKNOWN_WIDTH) {
final Ref<Boolean> approximateValue = new Ref<Boolean>(Boolean.FALSE);
width = getVisualLineWidth(iterator, () -> approximateValue.set(Boolean.TRUE));
if (approximateValue.get()) width = -width;
myLineWidths.set(visualLine, width);
}
maxWidth = Math.max(maxWidth, Math.abs(width));
iterator.advance();
}
return maxWidth;
}
