public void Config(Size pageSize)
{
Contract.Requires(pageSize.IsValid());
Debug.Assert(m_flipper == null);
PageWidth = pageSize.Width;
PageHeight = pageSize.Height;
PageDoubleWidth = pageSize.Width * 2;
m_turningPageBack.Clip = new RectangleGeometry() { Rect = new Rect(new Point(), pageSize) };
// TODO: HotSpot support need to be enabled with page content model
m_flipper = new PageFlipper(pageSize, null, m_pageTop, m_curlShadow, m_shadow);
m_flipper.IsAnimatingChanged += (sender, args) =>
{
if (!m_flipper.IsAnimating)
{
m_working = false;
var stillWorking = startDance();
if (!stillWorking)
{
OnDoneFlipping();
}
}
};
m_turningPageBack.RenderTransform = m_flipper.FlippingPageBackTransform;
m_page2nd.Clip = m_flipper.NextPageClip;
m_pageTop.Clip = m_flipper.PageHolderClip;
m_contentBitmapLeft = new WriteableBitmap((int)pageSize.Width, (int)pageSize.Height);
m_contentBitmapRight = new WriteableBitmap((int)pageSize.Width, (int)pageSize.Height);
m_currentContentSnapshot = new WriteableBitmap((int)pageSize.Width * 2, (int)pageSize.Height);
m_nextContentSnapshot = new WriteableBitmap((int)pageSize.Width * 2, (int)pageSize.Height);
#if FUNKY
var stack = new StackPanel() { HorizontalAlignment = HorizontalAlignment.Right, VerticalAlignment = VerticalAlignment.Bottom, Opacity = .67 };
(new WriteableBitmap[] { m_currentContentSnapshot, m_nextContentSnapshot, m_contentBitmapLeft, m_contentBitmapRight }).ForEach(wp => {
var image = new Image() { Source = wp, Stretch = Stretch.UniformToFill, Height = 150, Width = 200 };
stack.Children.Add(image);
});
((Grid)Content).Children.Add(stack);
#endif
m_leftImage.Source = m_contentBitmapLeft;
m_rightImage.Source = m_contentBitmapRight;
}
/// <summary>
/// Returns the scale factor by which an object of size <paramref name="source"/>
/// should be scaled to fit within an object of size <param name="target"/>.
/// </summary>
/// <param name="target">The target size.</param>
/// <param name="size2">The source size.</param>
public static double ScaleToFit(Size target, Size source)
{
Contract.Requires(target.IsValid());
Contract.Requires(source.IsValid());
Contract.Requires(target.Width > 0);
Contract.Requires(source.Width > 0);
double targetHWR = target.Height / target.Width;
double sourceHWR = source.Height / source.Width;
if (targetHWR > sourceHWR)
{
return target.Width / source.Width;
}
else
{
return target.Height / source.Height;
}
}
public static Vector Subtract(this Size size, Size other)
{
Contract.Requires(size.IsValid());
Contract.Requires(other.IsValid());
Contract.Ensures(Contract.Result<Vector>().IsValid());
return new Vector(size.Width - other.Width, size.Height - other.Height);
}
public PageFlipper(Size pageSize, UIElement hotCorner, UIElement pageHolder, FrameworkElement curlShadow, FrameworkElement dropShadow)
{
Contract.Requires(pageSize.IsValid());
m_pageSize = pageSize;
m_hotCorner = hotCorner;
m_curlShadow = curlShadow;
m_dropShadow = dropShadow;
// can be null
m_pageHolder = pageHolder;
#region helper values
m_pageHalfHeight = m_pageSize.Height * .5;
m_origin = new Point(m_pageSize.Width, m_pageSize.Height / 2.0);
m_pageDiagonal = Math.Sqrt(m_pageSize.Width * m_pageSize.Width + m_pageSize.Height * m_pageSize.Height);
m_pointLeft = new Point(-m_pageSize.Width, m_pageHalfHeight);
m_pointRight = new Point(m_pageSize.Width, m_pageHalfHeight);
#endregion
#region clips and transforms
m_pageTransformGroup = new TransformGroup();
m_pageTransformGroup.Children.Add(new TranslateTransform() { Y = -m_pageSize.Height });
m_pageTransformGroup.Children.Add(m_pageRotateTransform = new RotateTransform());
m_pageTransformGroup.Children.Add(m_pageTranslateTransform = new TranslateTransform());
m_pageHolderClip = new RectangleGeometry() { Rect = new Rect(0, 0, m_pageSize.Width, m_pageSize.Height * 2) };
m_nextPageClip = new RectangleGeometry() { Rect = new Rect(0, 0, m_pageSize.Width * 2, m_pageSize.Height * 2) };
if (m_curlShadow != null)
{
var group = new TransformGroup();
group.Children.Add(m_curlShadowRotate = new RotateTransform());
group.Children.Add(m_curlShadowTranslate = new TranslateTransform());
m_curlShadow.RenderTransform = group;
m_curlShadow.Height = m_pageDiagonal * 1.5;
m_curlShadowRotate.CenterX = m_curlShadow.Width;
m_curlShadowRotate.CenterY = m_pageDiagonal;
m_curlShadowTranslate.Y = m_pageSize.Height - m_pageDiagonal;
}
if (m_dropShadow != null)
{
//m_dropShadowBlurEffect = new BlurEffect() { Radius = 20 };
//m_dropShadow.Effect = m_dropShadowBlurEffect;
m_dropShadow.RenderTransform = m_pageTransformGroup;
m_dropShadow.Width = m_pageSize.Width;
m_dropShadow.Height = m_pageSize.Height;
}
#endregion
// MOST OF THE LOADED FUNCTION IS USED TO SET LOOK UP VALUES
// BASED ON THE pageWidth AND pageHeight INITIALLY DEFINED.
// POSITION THE PAGE AND SPINE VISUALS ACCORDINGLY
m_mouse.X = m_pageSize.Width - 1;
m_mouse.Y = m_pageHalfHeight - 1;
m_follow = m_mouse;
#region mouse handlers
if (m_hotCorner != null && m_pageHolder != null)
{
m_hotCorner.MouseMove += (sender, e) =>
{
m_animating = false;
m_listener.StartListening();
Point testBounds = (Point)e.GetPosition(m_pageHolder).Subtract(m_origin);
if (testBounds.X > m_pageSize.Width && testBounds.Y > m_pageHalfHeight)
{
m_mouse = m_pointRight;
}
else
{
m_mouse = testBounds;
}
};
m_hotCorner.MouseLeftButtonDown += (sender, e) =>
{
m_hotCorner.CaptureMouse();
};
m_hotCorner.MouseLeftButtonUp += (sender, e) =>
{
m_listener.StartListening();
m_hotCorner.ReleaseMouseCapture();
m_mouse = (m_mouse.X < 0) ? m_pointLeft : m_pointRight;
};
m_hotCorner.MouseLeave += (sender, e) =>
{
m_listener.StartListening();
m_mouse = m_pointRight;
};
}
#endregion
m_listener.Rendering += (sender, args) => updateUI();
m_listener.IsListeningChanged += (sender, args) =>
{
var handler = IsAnimatingChanged;
if (handler != null)
{
handler(this, EventArgs.Empty);
}
};
}