public VirtualSchemaContainer()
{
// InitializeComponent();
scroller = new ScrollViewer();
scroller.HorizontalScrollBarVisibility = ScrollBarVisibility.Visible;
scroller.VerticalScrollBarVisibility = ScrollBarVisibility.Visible;
scroller.CanContentScroll = true;
Child = scroller;
grid = new VirtualCanvas();
scroller.Content = grid;
grid.SmallScrollIncrement = new Size(_tileWidth + _tileMargin, _tileHeight + _tileMargin);
//Scroller.Content = grid;
object v = scroller.GetValue(ScrollViewer.CanContentScrollProperty);
Canvas target = grid.ContentCanvas;
zoom = new MapZoom(target);
pan = new Pan(target, zoom);
rectZoom = new RectangleSelectionGesture(target, zoom, System.Windows.Input.ModifierKeys.Control);
rectZoom.ZoomSelection = true;
autoScroll = new AutoScroll(target, zoom);
zoom.ZoomChanged += new EventHandler(OnZoomChanged);
grid.VisualsChanged += new EventHandler <VisualChangeEventArgs>(OnVisualsChanged);
//ZoomSlider.ValueChanged += new RoutedPropertyChangedEventHandler<double>(OnZoomSliderValueChanged);
grid.Scale.Changed += new EventHandler(OnScaleChanged);
grid.Translate.Changed += new EventHandler(OnScaleChanged);
grid.Background = new SolidColorBrush(Color.FromRgb(0xd0, 0xd0, 0xd0));
grid.ContentCanvas.Background = Brushes.White;
}
public UIElement CreateVisual(VirtualCanvas parent)
{
if (_visual == null)
{
_visual = _el;
Func <DependencyProperty, bool> f = p =>
{
Binding b = BindingOperations.GetBinding(_visual, p);
if (b.Source is ChannelDataProvider)
{
(b.Source as ChannelDataProvider).StopUpdate = false;
Debug.WriteLine((b.Source as ChannelDataProvider).ChannelName + "Created");
(b.Source as ChannelDataProvider).Refresh();
}
return(true);
};
/*
* foreach (DependencyProperty p in dict.Keys)
* {
* BindingOperations.SetBinding(_visual, p, dict[p]);
* }*/
EnumerateBindings(_visual, f);
}
return(_visual);
}
public Size MeasureText(VirtualCanvas parent, string label)
{
if (_parent != parent)
{
FontFamily fontFamily = (FontFamily)parent.GetValue(TextBlock.FontFamilyProperty);
FontStyle fontStyle = (FontStyle)parent.GetValue(TextBlock.FontStyleProperty);
FontWeight fontWeight = (FontWeight)parent.GetValue(TextBlock.FontWeightProperty);
FontStretch fontStretch = (FontStretch)parent.GetValue(TextBlock.FontStretchProperty);
_fontSize = (double)parent.GetValue(TextBlock.FontSizeProperty);
_typeface = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
_parent = parent;
}
FormattedText ft = new FormattedText(label, CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight, _typeface, _fontSize, Brushes.Black);
return(new Size(ft.Width, ft.Height));
}
public FrameworkElement CreateVisual(VirtualCanvas parent)
{
if (_visual == null)
{
_visual = _el;
Func <DependencyProperty, bool> f = p =>
{
Binding b = BindingOperations.GetBinding(_visual, p);
if (b != null && b.Source is ChannelDataProvider)
{
(b.Source as ChannelDataProvider).StopUpdate = false;
(b.Source as ChannelDataProvider).Refresh();
}
return(true);
};
EnumerateBindings(_visual, f);
}
return(_visual);
}
