public void ZoomToHeight()
{
double scrollBarHeight = scrollViewer.ComputedHorizontalScrollBarVisibility == System.Windows.Visibility.Visible ? SystemParameters.HorizontalScrollBarHeight : 0;
double zoomFactor = (parent.ActualHeight - scrollBarHeight) / parent.PageBounds[pageIndex].SizeIncludingOffset.Height;
PageBound pageBound = parent.PageBounds[pageIndex];
if (scrollBarHeight == 0 && ((pageBound.Size.Width * zoomFactor) + pageBound.HOffset) >= parent.ActualWidth)
{
scrollBarHeight += SystemParameters.HorizontalScrollBarHeight;
}
zoomFactor = (parent.ActualHeight - scrollBarHeight) / parent.PageBounds[pageIndex].SizeIncludingOffset.Height;
ZoomInternal(zoomFactor);
}
public void ZoomToWidth()
{
double scrollBarWidth = scrollViewer.ComputedVerticalScrollBarVisibility == System.Windows.Visibility.Visible ? SystemParameters.VerticalScrollBarWidth : 0;
double zoomFactor = (parent.ActualWidth - scrollBarWidth) / parent.PageBounds[pageIndex].SizeIncludingOffset.Width;
PageBound pageBound = parent.PageBounds[pageIndex];
if (scrollBarWidth == 0 && ((pageBound.Size.Height * zoomFactor) + pageBound.VOffset) >= parent.ActualHeight)
{
scrollBarWidth += SystemParameters.VerticalScrollBarWidth;
}
scrollBarWidth += 2;
zoomFactor = (parent.ActualWidth - scrollBarWidth) / parent.PageBounds[pageIndex].SizeIncludingOffset.Width;
ZoomInternal(zoomFactor);
}