private void RenderRowViewWithCursor(
Graphics g,
DocumentRowView view,
float offset,
int cursor,
CharacterRange selectionRange)
{
for (int i = 0, last = view.parts.Length - 1; i <= last; ++i)
{
var atom = view.parts[i];
var atomRaw = view.partRaws[i];
if (i == last && cursor >= atom.range.Length)
{
cursor = atom.range.Length - 1;
}
var trio = intersectAtomWithSelection(atom.range, selectionRange);
if (trio.first.Length > 0)
{
trio.first.First -= atom.range.First;
var thisStyle = atom.style;
var offsetChange = DrawStringPart(trio.first, g, atomRaw, thisStyle, offset).Width;
cursor -= drawCursor(cursor, trio.first, offset, g, atomRaw, thisStyle);
offset += offsetChange;
}
if (trio.second.Length > 0)
{
trio.second.First -= atom.range.First;
var thisStyle = atom.style.Combine(selectionStyle);
var offsetChange = DrawStringPart(trio.second, g, atomRaw, thisStyle, offset).Width;
cursor -= drawCursor(cursor, trio.second, offset, g, atomRaw, thisStyle);
offset += offsetChange;
}
if (trio.third.Length > 0)
{
trio.third.First -= atom.range.First;
var thisStyle = atom.style;
var offsetChange = DrawStringPart(trio.third, g, atomRaw, atom.style, offset).Width;
cursor -= drawCursor(cursor, trio.third, offset, g, atomRaw, thisStyle);
offset += offsetChange;
}
}
renderStuff.LineFrame = offset;
}
private void prepare(Graphics g, DocumentRowView view)
{
view.parts = document.getStylizedRow(view.row.Index);
SizeF sum = SizeF.Empty;
var partRawList = new List <string>();
var partSizeList = new List <SizeF>();
foreach (var atom in view.parts)
{
var atomSize = measure(g, view.row, atom);
sum.Width += atomSize.Width;
if (sum.Height < atomSize.Height)
{
sum.Height = atomSize.Height;
}
partRawList.Add(view.row.Raw.Substring(atom.range.First, atom.range.Length));
partSizeList.Add(atomSize);
}
view.partRaws = partRawList.ToArray();
view.partSizes = partSizeList.ToArray();
view.bounds.Size = sum;
var prevView = getDocumentRowView(view.row.Index - 1);
if (prevView != null)
{
view.bounds.Y = prevView.bounds.Bottom;
}
view.dirty = false;
}
public Point GetNearestCaretPosition(Point viewScreenPoint)
{
if (Document == null)
{
return(Point.Empty);
}
PointF pt = viewScreenPoint;
pt.X += renderStuff.LeftOffset;
DocumentRowView candidate = null;
for (int o = renderStuff.FirstRow; o <= renderStuff.LastRow && candidate == null; ++o)
{
DocumentRowView rowView = renderList[o];
if (rowView.bounds.Size.Height > pt.Y)
{
candidate = rowView;
}
pt.Y -= rowView.bounds.Size.Height;
}
if (candidate == null)
{
candidate = renderList[renderStuff.LastRow];
}
StylizedRowElement atom = null;
float partOffset = pt.X;
for (int i = 0; i < candidate.partSizes.Length; ++i)
{
if (partOffset < candidate.partSizes[i].Width)
{
atom = candidate.parts[i];
break;
}
partOffset -= candidate.partSizes[i].Width;
}
if (atom == null)
{
atom = candidate.parts[candidate.parts.Length - 1];
}
Point res = new Point();
res.Y = candidate.row.Index;
res.X = findCharacterPositionInPart(candidate.row, atom, pt.X);
return(res);
}
private float findCharacterPositionOffset(DocumentRowView rowView, int letterOffset)
{
float result = 0;
for (int i = 0; i < rowView.parts.Length && letterOffset > 0; ++i)
{
StylizedRowElement atom = rowView.parts[i];
if (atom.range.Length <= letterOffset)
{
result += rowView.partSizes[i].Width;
}
else
{
CharacterRange range = new CharacterRange(0, letterOffset);
string test = rowView.row.Raw.Substring(range.First, range.Length);
result += MeasureStringPart(range, test, atom.style).Size.Width;
}
letterOffset -= atom.range.Length;
}
return(result);
}
private void RenderRowView(
Graphics g,
DocumentRowView view,
float offset,
CharacterRange selectionRange)
{
for (var i = 0; i < view.parts.Length; ++i)
{
var atom = view.parts[i];
var atomRaw = view.partRaws[i];
var trio = intersectAtomWithSelection(atom.range, selectionRange);
if (trio.first.Length > 0)
{
trio.first.First -= atom.range.First;
offset += DrawStringPart(trio.first, g, atomRaw, atom.style, offset).Width;
}
if (trio.second.Length > 0)
{
trio.second.First -= atom.range.First;
Style thisStyle = atom.style.Combine(selectionStyle);
offset += DrawStringPart(trio.second, g, atomRaw, thisStyle, offset).Width;
}
if (trio.third.Length > 0)
{
trio.third.First -= atom.range.First;
offset += DrawStringPart(trio.third, g, atomRaw, atom.style, offset).Width;
}
}
renderStuff.LineFrame = offset;
}
private void RenderRowViewWithCursor(
Graphics g,
DocumentRowView view,
float offset,
int cursor,
CharacterRange selectionRange)
{
for (int i = 0, last = view.parts.Length - 1; i <= last; ++i)
{
StylizedRowElement atom = view.parts[i];
string atomRaw = view.partRaws[i];
if (i == last && cursor >= atom.range.Length)
{
cursor = atom.range.Length - 1;
}
CharacterRangeTrio trio = intersectAtomWithSelection(atom.range, selectionRange);
if (trio.first.Length > 0) {
trio.first.First -= atom.range.First;
Style thisStyle = atom.style;
float offsetChange = DrawStringPart(trio.first, g, atomRaw, thisStyle, offset).Width;
cursor -= drawCursor(cursor, trio.first, offset, g, atomRaw, thisStyle);
offset += offsetChange;
}
if (trio.second.Length > 0)
{
trio.second.First -= atom.range.First;
Style thisStyle = atom.style.combine(selectionStyle);
float offsetChange = DrawStringPart(trio.second, g, atomRaw, thisStyle, offset).Width;
cursor -= drawCursor(cursor, trio.second, offset, g, atomRaw, thisStyle);
offset += offsetChange;
}
if (trio.third.Length > 0)
{
trio.third.First -= atom.range.First;
Style thisStyle = atom.style;
float offsetChange = DrawStringPart(trio.third, g, atomRaw, atom.style, offset).Width;
cursor -= drawCursor(cursor, trio.third, offset, g, atomRaw, thisStyle);
offset += offsetChange;
}
}
renderStuff.LineFrame = offset;
}
private void RenderRowView(
Graphics g,
DocumentRowView view,
float offset,
CharacterRange selectionRange)
{
for (int i = 0; i < view.parts.Length; ++i)
{
StylizedRowElement atom = view.parts[i];
string atomRaw = view.partRaws[i];
CharacterRangeTrio trio = intersectAtomWithSelection(atom.range, selectionRange);
if (trio.first.Length > 0)
{
trio.first.First -= atom.range.First;
offset += DrawStringPart(trio.first, g, atomRaw, atom.style, offset).Width;
}
if (trio.second.Length > 0)
{
trio.second.First -= atom.range.First;
Style thisStyle = atom.style.combine(selectionStyle);
offset += DrawStringPart(trio.second, g, atomRaw, thisStyle, offset).Width;
}
if (trio.third.Length > 0)
{
trio.third.First -= atom.range.First;
offset += DrawStringPart(trio.third, g, atomRaw, atom.style, offset).Width;
}
}
renderStuff.LineFrame = offset;
}
private void prepare(Graphics g, DocumentRowView view)
{
view.parts = document.getStylizedRow(view.row.Index);
SizeF sum = SizeF.Empty;
List<string> partRawList = new List<string>();
List<SizeF> partSizeList = new List<SizeF>();
foreach (StylizedRowElement atom in view.parts)
{
SizeF atomSize = measure(g, view.row, atom);
sum.Width += atomSize.Width;
if (sum.Height < atomSize.Height)
sum.Height = atomSize.Height;
partRawList.Add(view.row.Raw.Substring(atom.range.First, atom.range.Length));
partSizeList.Add(atomSize);
}
view.partRaws = partRawList.ToArray();
view.partSizes = partSizeList.ToArray();
view.bounds.Size = sum;
DocumentRowView prevView = getDocumentRowView(view.row.Index - 1);
if (prevView != null)
view.bounds.Y = prevView.bounds.Bottom;
view.dirty = false;
}
private float measureCaretLeftOffset()
{
DocumentRowView rowView = getDocumentRowView(Position.Y);
return((rowView == null) ? 0 : findCharacterPositionOffset(rowView, Position.X));
}
private float findCharacterPositionOffset(DocumentRowView rowView, int letterOffset)
{
float result = 0;
for (int i = 0; i < rowView.parts.Length && letterOffset > 0; ++i)
{
StylizedRowElement atom = rowView.parts[i];
if (atom.range.Length <= letterOffset)
{
result += rowView.partSizes[i].Width;
}
else
{
CharacterRange range = new CharacterRange(0, letterOffset);
string test = rowView.row.Raw.Substring(range.First, range.Length);
result += MeasureStringPart(range, test, atom.style).Size.Width;
}
letterOffset -= atom.range.Length;
}
return result;
}
