static CssLineBox GetLine(HitInfo hitInfo)
{
switch (hitInfo.hitObjectKind)
{
default:
case HitObjectKind.Unknown:
{
return null;
throw new NotSupportedException();
}
case HitObjectKind.LineBox:
{
return (CssLineBox)hitInfo.hitObject;
}
case HitObjectKind.Run:
{
return ((CssRun)hitInfo.hitObject).HostLine;
}
case HitObjectKind.CssBox:
{
return null;
}
}
}
void SetupEndHitPoint(CssBoxHitChain startChain, CssBoxHitChain endChain, IHtmlTextService textService)
{
//find global location of end point
HitInfo endHit = endChain.GetLastHit();
int xposOnEndLine = 0;
CssLineBox endline = null;
//find endline first
_endHitRunCharIndex = 0;
_endHitRun = null;
switch (endHit.hitObjectKind)
{
default:
{
throw new NotSupportedException();
}
case HitObjectKind.Run:
{
CssRun endRun = (CssRun)endHit.hitObject;
#if DEBUG
//if (endRun.Text != null && endRun.Text.Contains("Jose"))
//{
//}
if (endHit.localX > 23)
{
}
System.Diagnostics.Debug.WriteLine(endHit.localX);
#endif
endRun.FindSelectionPoint(textService,
endHit.localX,
out int run_sel_index,
out int run_sel_offset);
endline = endRun.HostLine;
xposOnEndLine = (int)(endRun.Left + run_sel_offset);
_endHitRunCharIndex = run_sel_index;
#if DEBUG
System.Diagnostics.Debug.WriteLine(_endHitRunCharIndex);
#endif
_endHitRun = endRun;
}
break;
case HitObjectKind.LineBox:
{
endline = (CssLineBox)endHit.hitObject;
xposOnEndLine = endHit.localX;
}
break;
case HitObjectKind.CssBox:
{
CssBox hitBox = (CssBox)endHit.hitObject;
endline = FindNearestLine(hitBox, endChain.RootGlobalY, 5);
xposOnEndLine = endHit.localX;
}
break;
}
#if DEBUG
if (xposOnEndLine == 0)
{
}
#endif
//----------------------------------
_selectedLines = new List <CssLineBox>();
if (_startHitHostLine == endline)
{
_selectedLines.Add(endline);
_startHitHostLine.Select(_startLineBeginSelectionAtPixel, xposOnEndLine,
_startHitRun, _startHitRunCharIndex,
_endHitRun, _endHitRunCharIndex);
return; //early exit here ***
}
//----------------------------------
//select on different line
LineWalkVisitor lineWalkVisitor = null;
if (FindCommonGround(startChain, endChain, out int breakAtLevel) && breakAtLevel > 0)
{
//multiple select
//1. first part
if (endChain.GetHitInfo(breakAtLevel).hitObject is CssBlockRun hitBlockRun)
{
_startHitHostLine.Select(_startLineBeginSelectionAtPixel, (int)hitBlockRun.Left,
_startHitRun, _startHitRunCharIndex,
_endHitRun, _endHitRunCharIndex);
_selectedLines.Add(_startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(hitBlockRun);
}
else
{
_startHitHostLine.SelectPartialToEnd(_startLineBeginSelectionAtPixel, _startHitRun, _startHitRunCharIndex);
_selectedLines.Add(_startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(_startHitHostLine);
}
}
else
{
_startHitHostLine.SelectPartialToEnd(_startLineBeginSelectionAtPixel, _startHitRun, _startHitRunCharIndex);
_selectedLines.Add(_startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(_startHitHostLine);
}
lineWalkVisitor.SetWalkTargetPosition(endChain.RootGlobalX, endChain.RootGlobalY);
#if DEBUG
int dbugExpectedId = 1;
#endif
lineWalkVisitor.Walk(endline, (lineCoverage, linebox, partialLineRun) =>
{
#if DEBUG
//System.Diagnostics.Debug.WriteLine("sel:" + linebox.dbugId);
if (dbugExpectedId != linebox.dbugId)
{
}
dbugExpectedId++;
#endif
switch (lineCoverage)
{
case LineCoverage.EndLine:
{
//found end line
linebox.SelectPartialFromStart(xposOnEndLine, _endHitRun, _endHitRunCharIndex);
_selectedLines.Add(linebox);
}
break;
case LineCoverage.PartialLine:
{
linebox.SelectPartialFromStart((int)partialLineRun.Right, _endHitRun, _endHitRunCharIndex);
_selectedLines.Add(linebox);
}
break;
case LineCoverage.FullLine:
{
//check if hitpoint is in the line area
linebox.SelectFull();
_selectedLines.Add(linebox);
}
break;
}
});
}