private void HandleMouseDown(MouseEventArgs e, LinedPictureBox pb)
{
if (pbStartImage.Image != null && pbEndImage.Image != null)
{
PointF point = pb.TranslateImageToControl((PointF)e.Location);
if (e.Button == MouseButtons.Left)
{
SetFoundPairAtPoint(pb.ImageNumber, point);
}
else
{
_lines.Add(Tuple.Create(
new Line(point, point),
new Line(point, point)));
_currentLineImageNumber = pb.ImageNumber;
_currentLineEnd = 1;
_lineCreationInProcess = true;
}
pbStartImage.Refresh();
pbEndImage.Refresh();
}
}
/// <summary>Interpolates between the starting and ending morph lines.</summary>
/// <param name="pairs">The morph lines to interpolate.</param>
/// <param name="percent">The percent of the way through the morph.</param>
/// <param name="interpolatedForwards">Resulting interpolated lines for the starting image.</param>
/// <param name="interpolatedBackwards">Resulting interpolated lines for the ending image.</param>
private Tuple <LinePairCollection, LinePairCollection> InterpolateLines(
LinePairCollection pairs, double percent)
{
LinePairCollection interpolatedForwards = new LinePairCollection(), interpolatedBackwards = new LinePairCollection();
foreach (Tuple <Line, Line> pair in pairs)
{
// Source line is the same as the original; dest line is the interpolated line
// Add the new pair to the forwards list and the inverse to the backwards list.
var newPair = Tuple.Create(
new Line(pair.Item1.Item1, pair.Item1.Item2),
new Line(
AddPoints(pair.Item1.Item1, ScalePoint(SubPoints(pair.Item2.Item1, pair.Item1.Item1), percent)),
AddPoints(pair.Item1.Item2, ScalePoint(SubPoints(pair.Item2.Item2, pair.Item1.Item2), percent))
));
interpolatedForwards.Add(newPair);
interpolatedBackwards.Add(Tuple.Create(
new Line(pair.Item2.Item1, pair.Item2.Item2),
new Line(newPair.Item2.Item1, newPair.Item2.Item2)));
}
return(Tuple.Create(interpolatedForwards, interpolatedBackwards));
}