private void Slider_ValueChanged(object sender, RoutedPropertyChangedEventArgs <double> e)
{
try
{
if ((SV.ActualWidth == 0) | (SV.ActualHeight == 0))
{
return;
}
double oldWidth = 0; double oldHeight = Picture.ActualHeight;
if (Picture.Width == double.NaN)
{
oldWidth = Picture.ActualWidth;
}
else
{
oldWidth = Picture.Width;
}
Picture.Width = (SV.ActualWidth - 18) * e.NewValue / 100;
Picture.Height = (SV.ActualHeight - 18) * e.NewValue / 100;
SV.ScrollToHorizontalOffset(SV.HorizontalOffset + (-oldWidth + Picture.Width) / 2);
SV.ScrollToVerticalOffset(SV.VerticalOffset + (-oldHeight + Picture.Height) / 2);
}
catch
{
}
}
private void Image_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
Point P = e.GetPosition(Canv);
SV.ScrollToHorizontalOffset((P.X * Zoom.Value) - HRect.Width / 2);
SV.ScrollToVerticalOffset((P.Y * Zoom.Value) - HRect.Height / 2);
}
}
private void ScrollBar_ValueChanged(object sender, RoutedPropertyChangedEventArgs <double> e)
{
SV.ScrollToHorizontalOffset(e.NewValue);
}