private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{
if (bitmap == null)
return;
if (currentStroke != null)
{
if (currentStroke.drawingMode == Stroke.DrawingMode.RedArrow)
{
currentStroke.points[currentStroke.points.Count - 1] = e.Location; // replace endpoint
}
else
{
currentStroke.points.Add(e.Location);
}
}
currentStroke = null;
drawStrokes();
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (bitmap == null)
return;
currentStroke = new Stroke();
strokes.Add(currentStroke);
currentStroke.points.Add(e.Location);
if (e.Button == MouseButtons.Right)
{
// arrow
currentStroke.drawingMode = Stroke.DrawingMode.RedArrow;
currentStroke.points.Add(e.Location); // and the line's endpoint
}
else
{
if (this.toolStripComboBoxPenType.Text == "red arrow")
{
// arrow
currentStroke.drawingMode = Stroke.DrawingMode.RedArrow;
currentStroke.points.Add(e.Location); // and the line's endpoint
}
else if (this.toolStripComboBoxPenType.Text == "red marker")
{
currentStroke.drawingMode = Stroke.DrawingMode.RedMarker;
}
else
{
currentStroke.drawingMode = Stroke.DrawingMode.YellowHighlighter;
}
}
}
