int getVisualLineWidth(
VisualLinesIterator visualLinesIterator, @Nullable Runnable quickEvaluationListener) {
assert !visualLinesIterator.atEnd();
int visualLine = visualLinesIterator.getVisualLine();
FoldRegion[] topLevelRegions = myEditor.getFoldingModel().fetchTopLevel();
if (quickEvaluationListener != null
&& (topLevelRegions == null || topLevelRegions.length == 0)
&& myEditor.getSoftWrapModel().getRegisteredSoftWraps().isEmpty()
&& !myView.getTextLayoutCache().hasCachedLayoutFor(visualLine)) {
// fast path - speeds up editor opening
quickEvaluationListener.run();
return myView
.getLogicalPositionCache()
.offsetToLogicalColumn(
visualLine,
myDocument.getLineEndOffset(visualLine)
- myDocument.getLineStartOffset(visualLine))
* myView.getMaxCharWidth();
}
float x = 0;
int maxOffset = visualLinesIterator.getVisualLineStartOffset();
for (VisualLineFragmentsIterator.Fragment fragment :
VisualLineFragmentsIterator.create(myView, visualLinesIterator, quickEvaluationListener)) {
x = fragment.getEndX();
maxOffset = Math.max(maxOffset, fragment.getMaxOffset());
}
if (myEditor.getSoftWrapModel().getSoftWrap(maxOffset) != null) {
x +=
myEditor
.getSoftWrapModel()
.getMinDrawingWidthInPixels(SoftWrapDrawingType.BEFORE_SOFT_WRAP_LINE_FEED);
}
return (int) x;
}
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;
}