private void RenderCanvas_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
Input.MousePosition = e.Location;
bool updateSurface = false;
if (Input.IsDrag)
{
double deltaPixel = e.X - Input.DragPosition.X;
double deltaUnit = Scroll.PixelToUnitLength(deltaPixel);
Scroll.ViewUnit.Left -= deltaUnit;
Scroll.ViewUnit.Normalize();
UpdateBar();
updateSurface = true;
Input.DragPosition = e.Location;
}
else if (Input.IsMeasure)
{
Input.MeasureInterval.Finish = Scroll.PixelToTime(e.X).Start;
updateSurface = true;
}
else
{
ThreadRow row = GetRow(e.Y);
if (row != null)
{
row.OnMouseMove(new Point(e.X, e.Y - row.Offset), Scroll);
}
updateSurface = true;
}
if (updateSurface)
{
UpdateSurface();
}
}
private void RenderCanvas_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (e.Delta != 0)
{
double delta = e.Delta * ZoomSpeed;
double scale = delta > 0.0 ? 1 / delta : -delta;
double ratio = (double)e.X / surface.RenderCanvas.Width;
double prevWidth = Scroll.ViewUnit.Width;
Scroll.ViewUnit.Width *= scale;
Scroll.ViewUnit.Left += (prevWidth - Scroll.ViewUnit.Width) * ratio;
Scroll.ViewUnit.Normalize();
ThreadRow row = GetRow(e.Y);
if (row != null)
{
row.OnMouseMove(new Point(e.X, e.Y - row.Offset), Scroll);
}
UpdateBar();
UpdateSurface();
}
}
