C++ (Cpp) JIndexRange::Contains Examples

Example #1

File: JTEStyler.cpp Project: mbert/mulberry-lib-jx

JBoolean
JTEStyler::SetStyle
	(
	const JIndexRange&	range,
	const JFontStyle&	style
	)
{
	assert( !range.IsEmpty() );

	if (itsCheckRange.last < range.first)
		{
		// we are beyond the range where anything could have changed
		return kJFalse;
		}

	assert( range.first == itsTokenStart );

	if (itsRedoAllFlag)
		{
		JFontID fid = itsDefFontID;
		if (!OnlyColorChanged(style, itsDefFontStyle))
			{
			fid = itsFontMgr->GetFontID(itsFontName, itsFontSize, style);
			}
		itsStyles->AppendElements(JTextEditor::Font(fid, itsFontSize, style, itsDefFontAlign),
								  range.GetLength());
		}
	else if (range.last >= itsCheckRange.first)
		{
		JIndexRange fontRange;
		fontRange.SetFirstAndLength(itsTokenFirstInRun, itsStyles->GetRunLength(itsTokenRunIndex));
		const JBoolean beyondCurrentRun = JNegate( fontRange.Contains(range) );

		JTextEditor::Font f = itsStyles->GetRunData(itsTokenRunIndex);
		if (beyondCurrentRun || style != f.style)
			{
			// extend the check range if we slop over into another style run
			// (HTML: type '<' after 'x' in "x<!--<br><h3>text</h3>-->")

			// extend past end of run to insure that we keep going until we
			// find a correctly styled token

			if (beyondCurrentRun)
				{
				JIndex runIndex   = itsTokenRunIndex;
				JIndex firstInRun = itsTokenFirstInRun;
				const JBoolean ok = itsStyles->FindRun(itsTokenStart, range.last,
													   &runIndex, &firstInRun);
				ExtendCheckRange(firstInRun + itsStyles->GetRunLength(runIndex));
				}

			// extend check range to next token since this token was not
			// correctly styled -- should only stop when find correctly
			// styled tokens

			else	// style != f.style
				{
				ExtendCheckRange(range.last+1);
				}

			// update the styles

			if (!beyondCurrentRun && OnlyColorChanged(style, f.style))
				{
				*itsRedrawRange += range;
				}
			else
				{
				*itsRecalcRange += range;
				}

			f.size  = itsFontSize;
			f.style = style;
			if (OnlyColorChanged(style, itsDefFontStyle))
				{
				f.id = itsDefFontID;
				}
			else
				{
				f.id = itsFontMgr->GetFontID(itsFontName, itsFontSize, style);
				}
			f.align  = itsDefFontAlign;

			itsStyles->RemoveNextElements(range.first, range.GetLength(),
										  &itsTokenRunIndex, &itsTokenFirstInRun);

			run_assert(itsStyles, range.first, itsTokenRunIndex, itsTokenFirstInRun);

			itsStyles->InsertElementsAtIndex(range.first, f, range.GetLength(),
											 &itsTokenRunIndex, &itsTokenFirstInRun);

			run_assert(itsStyles, range.first, itsTokenRunIndex, itsTokenFirstInRun);
			}
		}

	itsTokenStart = range.last+1;
	if (!itsRedoAllFlag)
		{
		const JBoolean ok = itsStyles->FindRun(range.first, itsTokenStart,
											   &itsTokenRunIndex, &itsTokenFirstInRun);
		assert( ok || range.last == itsText->GetLength() );
		assert( range.last == itsText->GetLength() ||
				check_run(itsStyles, itsTokenStart, itsTokenRunIndex, itsTokenFirstInRun) );
		}

	return JConvertToBoolean( range.last < itsCheckRange.last );
}