private void ZoomScroll(object sender, MouseEventArgs e)
{
if (Wheel.Mode == "Zoom")
{
if (e.Delta > 0)
{
Zoom.Value *= Zoom.Factor;
if (Zoom.Value > Zoom.Max)
{
Zoom.Value = Zoom.Max;
}
}
else
{
Zoom.Value /= Zoom.Factor;
if (Zoom.Value < Zoom.Min)
{
Zoom.Value = Zoom.Min;
}
}
ZoomComboBox.ResetText();
ZoomComboBox.SelectedText = (Zoom.Value * 100).ToString("0.00") + "%";
ScaleImage();
}
else if (Wheel.Mode == "Scroll")
{
if (e.Delta > 0) // up
{
if ((ImageBox.Top + Wheel.Step) < 0)
{
ImageBox.Top += Wheel.Step;
}
else
{
ImageBox.Top = 0;
}
}
else // down
{
if ((ImageBox.Top - Wheel.Step) > -(ImageBox.Height - BottomPanel.Height))
{
ImageBox.Top -= Wheel.Step;
}
else
{
ImageBox.Top = -(ImageBox.Height - BottomPanel.Height);
}
}
TopLabel.Text = ImageBox.Top.ToString();
}
}
private void FitScreen()
{
Zoom.Mode = "FitScreen";
float ratio = (float)BottomPanel.Width / InputImage.Width;
if (InputImage.Height * ratio < BottomPanel.Height)
{
Zoom.Value = ratio;
}
else
{
Zoom.Value = (float)BottomPanel.Height / InputImage.Height;
}
ScaleImage();
ZoomComboBox.ResetText();
ZoomComboBox.SelectedText = (Zoom.Value * 100).ToString("0.00") + "%";
}
