public void RemoveEffect(IOverlayInfo overlayInfo, Size?defaultOverlaySize, OverlayEffectConfiguration config)
{
var overlaySize = overlayInfo?.OverlaySize;
overlaySize = overlaySize ?? defaultOverlaySize;
EndEffect(overlayInfo, overlaySize.Value, config);
}
public void ApplyEffect(IOverlayInfo overlayInfo, Size?defaultOverlaySize, OverlayEffectConfiguration config)
{
//validate
var overlaySize = overlayInfo?.OverlaySize;
overlaySize = overlaySize ?? defaultOverlaySize;
if (overlaySize == null)
{
return;
}
StartEffect(overlayInfo, overlaySize.Value, config);
}
protected override void StartEffect(IOverlayInfo overlayInfo, Size overlaySize, OverlayEffectConfiguration config)
{
//validate
var settings = config as ToolTipEffect;
if (settings == null)
{
return;
}
if (settings.Template == null)
{
return;
}
_overlaySize = overlaySize;
_overlayRect = overlayInfo?.Rect;
_overlayPolygon = overlayInfo?.Entity as PolygonInfo;
var tooltip = overlayInfo?.ToolTip;
if (tooltip != null)
{
//end current tooltip
if (_currentOverlayInfo != null)
{
EndEffect(_currentOverlayInfo, overlaySize, config);
}
//create template
var toolTipControl = settings.Template.LoadContent() as FrameworkElement;
toolTipControl.DataContext = tooltip;
toolTipControl.Loaded += ToolTipControl_Loaded;
if (settings.ToolTipMode == ToolTipMode.Extended)
{
var panel = new StackPanel()
{
Background = Application.Current.Resources["SystemControlBackgroundChromeMediumLowBrush"] as Brush,
BorderBrush = Application.Current.Resources["SystemControlForegroundChromeHighBrush"] as Brush,
BorderThickness = new Thickness(1)
};
ImageSource imageSource = (OverlayPresenter as OverlayPresenter)?.Source;
if (imageSource != null)
{
_image = new Image()
{
Source = imageSource, Width = (double)(imageSource as BitmapImage)?.PixelWidth, Height = (double)(imageSource as BitmapImage)?.PixelHeight
};
_imageView = new Viewbox()
{
Child = _image, Stretch = Stretch.None
};
_view = new Viewbox {
Child = _imageView
};
panel.Children.Add(_view);
}
panel.Children.Add(toolTipControl);
_popup.Child = panel;
}
else
{
_popup.Child = toolTipControl;
}
//show popup
_popup.IsOpen = true;
_currentOverlayInfo = overlayInfo;
}
}
public override bool?ShouldApply(IOverlayInfo overlayInfo, Size?overlaySize, OverlayInfoState state, OverlayEffectConfiguration config, bool presenterSelected)
{
_presenterSelected = presenterSelected;
_toolTipMode = (config as ToolTipEffect)?.ToolTipMode ?? ToolTipMode.Standard;
return(state == OverlayInfoState.Selected && (presenterSelected || _toolTipMode == ToolTipMode.Extended));
}
protected override void EndEffect(IOverlayInfo overlayInfo, Size?overlaySize, OverlayEffectConfiguration config)
{
//remove popup
if (_currentOverlayInfo == overlayInfo)
{
if (_popup.IsOpen)
{
_popup.IsOpen = false;
}
_currentOverlayInfo = null;
}
}
protected override void StartEffect(IOverlayInfo overlayInfo, Size overlaySize, OverlayEffectConfiguration config)
{
//validate
var settings = config as ZoomEffect;
if (settings == null)
{
return;
}
//start new movement
var zoom = 1d;
var focus = new Point();
if (overlayInfo != null)
{
var bounds = overlayInfo.Rect;
//calculate zoom
var viewerRatio = OverlayPresenter.RenderSize.Width / OverlayPresenter.RenderSize.Height;
var boundRatio = bounds.Width / bounds.Height;
if (viewerRatio < boundRatio)
{
//zoom by width
zoom = OverlayPresenter.RenderSize.Width / bounds.Width;
}
else
{
//zoom by height
zoom = OverlayPresenter.RenderSize.Height / bounds.Height;
}
zoom = Math.Min(zoom, settings.MaxZoom); //max zoom
zoom = Math.Max(zoom, settings.MinZoom); //min zoom
//focus on center
var boundCenter = new Point(bounds.Left + (bounds.Width / 2), bounds.Top + (bounds.Height / 2));
var target = TransformPoint(boundCenter, overlaySize);
var viewerCenter = new Point(OverlayPresenter.RenderSize.Width / 2, OverlayPresenter.RenderSize.Height / 2);
focus = new Point(-(target.X * zoom) + viewerCenter.X, -(target.Y * zoom) + viewerCenter.Y);
}
_animations[2] = _animations[0];
_animations[3] = _animations[1];
_animations[0] = new ScaleTransformAnimation(zoom, zoom, settings.Duration, BaseAnimation.DefaultInOut);
_animations[1] = new TranslateTransformAnimation(focus.X, focus.Y, settings.Duration, BaseAnimation.DefaultInOut);
_animations[0].Activate(OverlayPresenter);
_animations[1].Activate(OverlayPresenter);
}
public override bool?ShouldApply(IOverlayInfo overlayInfo, Size?overlaySize, OverlayInfoState state, OverlayEffectConfiguration config, bool presenterSelected)
{
//only works when not selected from the image
if (!presenterSelected)
{
return(state == OverlayInfoState.Selected);
}
return(null);
}
protected override void EndEffect(IOverlayInfo overlayInfo, Size?overlaySize, OverlayEffectConfiguration config)
{
StartEffect(null, overlaySize.GetValueOrDefault(), config);
}
public abstract bool?ShouldApply(IOverlayInfo overlayInfo, Size?overlaySize, OverlayInfoState state, OverlayEffectConfiguration config, bool presenterSelected);
protected abstract void EndEffect(IOverlayInfo overlayInfo, Size?overlaySize, OverlayEffectConfiguration config);
