internal void DoUpdates()
{
Highlight tu;
//get indices of change
changeIndices = TextBoxHighlightHandler.IdentifyChange(currentText, oldText);
//go through underlines and adjust for change
int changeMagnitude = currentText.Length - oldText.Length;
//set old text to current
oldText = currentText;
for (int i = 0; i < highlights.Count && i >= 0; i++)
{
tu = highlights[i];
//text preceding text in change text US after UE change
// ^--------------------------^
// removal
//move start and end by change magnitude, if this moves index past start of change
//then set the index to the point of change. (true if index was in removal seciton)
if (changeIndices[0] == tu.Start || changeIndices[0] == tu.End ||
changeIndices[1] == tu.Start || changeIndices[1] == tu.End)
{
tu.Hidden = false;
}
int newStart = tu.Start, newEnd = tu.End;
//change was before underline, update to where underline will be NOW.
if (changeIndices[0] <= tu.Start)
{ //if the change began before the underline start (doesnt matter where it ended)
if (tu.Start + changeMagnitude >= changeIndices[0])
{
newStart = tu.Start + changeMagnitude;
}
else
{
newStart = changeIndices[0];
}
}
if (changeIndices[0] < tu.End)
{ //if the change began before the underline end (doesnt matter where it ended)
if (tu.End + changeMagnitude >= changeIndices[0])
{
newEnd = tu.End + changeMagnitude;
}
else
{
newEnd = changeIndices[0];
}
}
if (newStart != tu.Start || newEnd != tu.End)
{
MoveHighlight(tu, newStart, newEnd);
}
int c0 = changeIndices[0]
, c1 = changeIndices[1]
, us = tu.Start
, ue = tu.End;
//We must remove underlines that have been tampered with, because although in most cases it wont matter, if the tamper is an added or removed
//space we must let the spell check add correct lines. One underline broken into two, will not happen without this.
if (
(c0 >= us && c0 < ue) || //change start is inside underline
(c1 > us && c1 <= ue) || //change end is inside underline
(c0 <= us && c1 >= ue) || //change is around underline
(us == ue) //underline shrunk to nothing
)
{
RemoveHighlight(tu.Start, tu.End);
--i;
continue;
}
}
List <Run> runs = new List <Run>();
int rescanStart = changeIndices[0];
rescanStart -= 30;//recheck some words before
if (rescanStart < 0)
{
rescanStart = 0;
}
else //go from the next space
{
int possibleStart;
if ((possibleStart = currentText.IndexOf(' ', rescanStart)) > -1 && possibleStart < changeIndices[0])
{
rescanStart = possibleStart;
}
}
int rescanEnd = changeIndices[1];
rescanEnd += 30;
if (rescanEnd > currentText.Length)
{
rescanEnd = currentText.Length;
}
else
{//go to a prev space
int possibleEnd;
if (rescanEnd < currentText.Length && (possibleEnd = currentText.LastIndexOf(' ', rescanEnd)) > -1 && possibleEnd > changeIndices[1])
{
rescanEnd = possibleEnd;
}
}
runs.Add(new Run(currentText.Substring(rescanStart, rescanEnd - rescanStart).PadLeft(rescanEnd)));
OnNewSearchNeeded(runs);
AdornerLayer.Update();
}
internal void DoUpdates()
{
RichTextBoxHighlight tu;
List <Run> newCheckRuns = new List <Run>();
//get indices of change
changeIndices = TextBoxHighlightHandler.IdentifyChange(currentText, oldText);
TextPointer[] editPoints = adapter.GetPointerAtIndex(changeIndices[0], changeIndices[1]);
if (editPoints[0] != null && editPoints[1] != null)
{
newCheckRuns.AddRange(GetRuns(editPoints[0], editPoints[1]));
}
//go through underlines and adjust for change
int changeMagnitude = currentText.Length - oldText.Length;
//set old text to current
oldText = currentText;
//need highlights to be in sorted order for highlightIndexes to work
highlights.Sort(highlightComparer);
List <TextPointer> highlightPointers = new List <TextPointer>(highlights.Count);
List <int[]> highlightIndexes = new List <int[]>(highlights.Count);
List <RichTextBoxHighlight> highlightsToMove = new List <RichTextBoxHighlight>(highlights.Count);
bool willMove = false;
for (int i = 0; i < highlights.Count && i >= 0; i++)
{
willMove = false;
tu = highlights[i] as RichTextBoxHighlight;
//text preceding text in change text US after UE change
// ^--------------------------^
// removal
//move start and end by change magnitude, if this moves index past start of change
//then set the index to the point of change. (true if index was in removal seciton)
if (changeIndices[0] == tu.AbsoluteStart || changeIndices[0] == tu.AbsoluteEnd ||
changeIndices[1] == tu.AbsoluteStart || changeIndices[1] == tu.AbsoluteEnd)
{
tu.Hidden = false;
}
int newStart = tu.AbsoluteStart, newEnd = tu.AbsoluteEnd;
//change was before underline, update to where underline will be NOW.
if (changeIndices[0] <= tu.AbsoluteStart)
{ //if the change began before the underline start (doesnt matter where it ended)
if (tu.AbsoluteStart + changeMagnitude >= changeIndices[0])
{
newStart = tu.AbsoluteStart + changeMagnitude;
}
else
{
newStart = changeIndices[0];
}
}
if (changeIndices[0] < tu.AbsoluteEnd)
{ //if the change began before the underline end (doesnt matter where it ended)
if (tu.AbsoluteEnd + changeMagnitude >= changeIndices[0])
{
newEnd = tu.AbsoluteEnd + changeMagnitude;
}
else
{
newEnd = changeIndices[0];
}
}
if (newStart != tu.AbsoluteStart || newEnd != tu.AbsoluteEnd)
{
willMove = true;
// highlightIndexes.Add(new int[2]{newStart, newEnd});
// highlightsToMove.Add(tu);
/* TextPointer[] startPoints = adapter.GetPointerAtIndex(newStart, newEnd);
* if(startPoints!=null)
* MoveHighlight(tu, startPoints[0],newEnd-newStart);
*/
}
//MoveHighlight(tu, newStart, newEnd, true);
int c0 = changeIndices[0]
, c1 = changeIndices[1]
, us = tu.AbsoluteStart
, ue = tu.AbsoluteEnd;
//We must remove underlines that have been tampered with, because although in most cases it wont matter, if the tamper is an added or removed
//space we must let the spell check add correct lines. One underline broken into two, will not happen without this.
if (
(c0 >= us && c0 < ue) || //change start is inside underline
(c1 > us && c1 <= ue) || //change end is inside underline
(c0 <= us && c1 >= ue) || //change is around underline
(us == ue) //underline shrunk to nothing
)
{
RemoveHighlight(tu);
willMove = false;
//newCheckRuns.Add(tu.Run);
--i;
// continue;
}
if (willMove && newStart != newEnd)
{
highlightIndexes.Add(new int[2] {
newStart, newEnd
});
highlightsToMove.Add(tu);
}
}
if (highlightsToMove.Count > 0)
{
//highlightIndexes.Clear();
//highlightIndexes.Add(new int[] { 11382, 1 });
adapter.GetPointerAtIndexes(highlightIndexes, highlightPointers);
for (int i = 0; i < highlightsToMove.Count; i++)
{
if (i >= highlightPointers.Count)//we have a highlight left over from an edit it seems
{
RemoveHighlight(highlightsToMove[i]);
}
else
{
TextPointer startPoints = highlightPointers[i]; //adapter.GetPointerAtIndex(newStart, newEnd);
if (startPoints != null)
{
MoveHighlight(highlightsToMove[i], startPoints, highlightIndexes[i][1] - highlightIndexes[i][0]);
}
}
}
}
OnNewSearchNeeded(newCheckRuns);
AdornerLayer.Update();
}