public void PointToChar(int ichBase, IVwGraphics vg, Rect rcSrc, Rect rcDst, Point tdClickPosition,
out int ichOut, out bool fAssocPrev)
{
LastPointToCharArgs = new PointToCharArgs()
{
IchBase = ichBase, Vg = vg, RcSrc = rcSrc, RcDst = rcDst, ClickPosition = tdClickPosition
};
int xpos = tdClickPosition.X + rcSrc.left - rcDst.left; // Enhance: not sure this is right for rcDst, and ignores zoom
int ich = 0;
fAssocPrev = false;
if (xpos < 0)
{
ichOut = ich + ichBase;
return;
}
int lastCharWidth = 0;
while (xpos >= 0 & ich < Length)
{
lastCharWidth = FakeRenderEngine.CharWidth(Text[ich]);
xpos -= lastCharWidth;
ich++;
}
if (xpos >= 0 && ich > 0)
{
fAssocPrev = true; // click to right of last char
{
ichOut = ich + ichBase;
return;
}
}
// We clicked somewhere in the last character, of width lastCharWidth.
// If we clicked in the first half of it, treat as a click before it.
// -xpos is the distance we clicked left of its right edge.
if ((-xpos) < lastCharWidth / 2)
{
fAssocPrev = true; // click on right half, return current index and assoc prev
}
else if (ich > 0)
{
ich--; // click on left half, return previous index and assoc prev false.
}
ichOut = ich + ichBase;
}
public void PositionsOfIP(int ichBase, IVwGraphics _vg, Rect rcSrc, Rect rcDst, int ich, bool fAssocPrev, LgIPDrawMode dm,
out Rect rectPrimary, out Rect rectSecondary, out bool fPrimaryHere, out bool fSecHere)
{
LastPosIpCall = new MockSegment.PositionsOfIpArgs();
LastPosIpCall.IchBase = ichBase;
LastPosIpCall.Graphics = _vg;
LastPosIpCall.RcSrc = rcSrc;
LastPosIpCall.RcDst = rcDst;
LastPosIpCall.Ich = ich;
LastPosIpCall.AssocPrev = fAssocPrev;
LastPosIpCall.DrawMode = dm;
if (NextPosIpResult != null)
{
rectPrimary = NextPosIpResult.RectPrimary;
rectSecondary = new Rect(); // NextPosIpResult.RectSecondary;
fPrimaryHere = NextPosIpResult.PrimaryHere;
fSecHere = false; // NextPosIpResult.SecHere;
}
else
{
rectPrimary = new Rect(0, 0, 0, 0);
rectSecondary = new Rect(0, 0, 0, 0);
fSecHere = false;
if (ich < ichBase || ich > ichBase + Length)
{
fPrimaryHere = false;
return;
}
fPrimaryHere = true; // useful result when we don't care to prepare for this call.
int width = 0;
for (int i = 0; i < ich - ichBase; i++)
{
width += FakeRenderEngine.CharWidth(Text[i]);
}
rectPrimary = PaintTransform.ConvertToPaint(new Rect(width - 1, 0, width + 1, Height),
rcSrc, rcDst);
}
}
