private static void CanExecuteEventHandler_IfCanDecreaseZoom(Object sender, CanExecuteRoutedEventArgs e)
{
ZoomBoxPanel z = sender as ZoomBoxPanel;
e.CanExecute = ((z != null) && (z.CanDecreaseZoom));
e.Handled = true;
}
private static void CanExecuteEventHandler_IfHasContent(Object sender, CanExecuteRoutedEventArgs e)
{
ZoomBoxPanel z = sender as ZoomBoxPanel;
e.CanExecute = ((z != null) && (z.Children.Count > 0));
e.Handled = true;
}
private static void PropertyChanged_Zoom(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ZoomBoxPanel z = d as ZoomBoxPanel;
if (z != null)
{
z.process_PropertyChanged_Zoom(e);
}
}
private static void PropertyChanged_AMode(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ZoomBoxPanel z = d as ZoomBoxPanel;
if (z != null)
{
z.NotifyPropertyChanged();
}
}
public static void ExecutedEventHandler_RotateReverse(Object sender, ExecutedRoutedEventArgs e)
{
ZoomBoxPanel z = sender as ZoomBoxPanel;
if (z != null)
{
z.process_RotateHomeReverse(false);
}
}
public static void ExecutedEventHandler_DecreaseZoom(Object sender, ExecutedRoutedEventArgs e)
{
ZoomBoxPanel z = sender as ZoomBoxPanel;
if (z != null)
{
z.process_ZoomCommand(false);
}
}
public static void ExecutedEventHandler_RotateCounterclockwise(Object sender, ExecutedRoutedEventArgs e)
{
ZoomBoxPanel z = sender as ZoomBoxPanel;
double? param = null;
string p = e.Parameter as string;
if ((p != null) && (p.Length > 0))
{
param = Double.Parse(p);
}
if (z != null)
{
z.process_RotateCommand(false, param);
}
}
private static object CoerceZoom(DependencyObject d, object value)
{
double dv = (double)value;
ZoomBoxPanel z = d as ZoomBoxPanel;
if (z != null)
{
if (dv > z.MaxZoom)
{
dv = z.MaxZoom;
}
else if (dv < z.MinZoom)
{
dv = z.MinZoom;
}
}
return(dv);
}
private static object CoerceMaxZoom(DependencyObject d, object value)
{
double dv = (double)value;
ZoomBoxPanel z = d as ZoomBoxPanel;
if (z != null)
{
if (dv < z.MinZoom)
{
z.MinZoom = dv;
}
if (z.Zoom > dv)
{
z.Zoom = dv;
}
;
}
return(dv);
}
