private void RefreshContent()
{
// show left and right content
BookPage sheet0 = GetTemplateChild("x_sheet_0") as BookPage;
ContentPresenter p0 = sheet0.FindName("x_page_0") as ContentPresenter;
ContentPresenter p1 = sheet0.FindName("x_page_1") as ContentPresenter;
ContentPresenter p2 = sheet0.FindName("x_page_2") as ContentPresenter;
p2.Content = GetPage(_startPage + 0);
p1.Content = GetPage(_startPage + 1);
p0.Content = GetPage(_startPage + 2);
sheet0.CanDrag = _startPage > -3;
BookPage sheet1 = GetTemplateChild("x_sheet_1") as BookPage;
ContentPresenter ps0 = sheet1.FindName("x_page_0") as ContentPresenter;
ContentPresenter ps1 = sheet1.FindName("x_page_1") as ContentPresenter;
ContentPresenter ps2 = sheet1.FindName("x_page_2") as ContentPresenter;
ps0.Content = GetPage(_startPage + 3);
ps1.Content = GetPage(_startPage + 4);
ps2.Content = GetPage(_startPage + 5);
sheet1.CanDrag = (_startPage + 3) < Items.Count;
// make corner visible
ClearBoxes(sheet0);
ClearBoxes(sheet1);
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
_startPage = -3;
Items.Insert(0, new Cover());
if (Items.Count % 2 == 0)
{
// todo Empty
Items.Add(new EmptyPage());
}
Items.Add(new EndCover());
Assembly assem = Assembly.GetExecutingAssembly();
Uri ur = new Uri(assem.CodeBase);
FileInfo fi = new FileInfo(ur.AbsolutePath);
string s = fi.Directory.FullName;
for (int i = 1; i < Items.Count - 1; i++)
{
UserControl el = Items[i] as UserControl;
ImageSource source = new BitmapImage(new Uri(s + "\\..\\..\\..\\book\\back.jpg"));
ImageBrush b = new ImageBrush(source);
el.BorderBrush = b;
el.BorderThickness = new Thickness(30);
el.Background = Brushes.SandyBrown;
}
BookPage s1 = GetTemplateChild("x_sheet_1") as BookPage;
s1.StartPoint = new Point(s1.RenderSize.Width, 0);
RefreshContent();
}
private void AnimateToLeft(object sender, EventArgs e)
{
BookPage s0 = GetTemplateChild("x_sheet_1") as BookPage;
Point p = FinalPoint;
s0.StartDragging(p);
}
private void ClearBoxes(BookPage sheet)
{
// clear all paths
PathGeometry p = sheet.x_clip_page_2;
p.Figures.Clear();
sheet.x_clip_page_1.Figures.Clear();
sheet.x_rectangleRotate.Angle = 0;
sheet.x_rectangleTranslate.X = 0;
sheet.x_rectangleTranslate.Y = 0;
}
private void ContentControl_MouseUp(object sender, MouseButtonEventArgs e)
{
if (_isDragging == null)
{
return;
}
// set animation to finish
BookPage b = _isDragging;
_isDragging = null;
Point p = e.GetPosition(b);
// free old animation - todo change
this.BeginAnimation(BookContainer.FinalPointProperty, null);
FinalPoint = p;
PointAnimation anim = new PointAnimation();
anim.Duration = new Duration(new TimeSpan(0, 0, 2));
anim.From = p;
mAnimationActive = true;
if (p.X > b.RenderSize.Width)
{
anim.To = new Point(2 * b.RenderSize.Width, 0);
anim.CurrentTimeInvalidated += AnimateToRight;
anim.Completed += Anim_Completed_Right;
}
else if (p.X < 0)
{
anim.To = new Point(-b.RenderSize.Width, 0);
anim.CurrentTimeInvalidated += AnimateToLeft;
anim.Completed += Anim_Completed_Left;
}
else
{
BookPage comp = GetTemplateChild("x_sheet_0") as BookPage;
if (comp == _isDragging)
{
anim.To = new Point(0, 0);
anim.CurrentTimeInvalidated += AnimateToLeft;
anim.Completed += Anim_Completed;
}
else
{
anim.To = new Point(b.RenderSize.Width, 0);
anim.CurrentTimeInvalidated += AnimateToLeft;
anim.Completed += Anim_Completed;
}
}
this.BeginAnimation(BookContainer.FinalPointProperty, anim);
}
private void ContentControl_MouseMove(object sender, MouseEventArgs e)
{
if (mAnimationActive)
{
return;
}
if (_isDragging == null)
{
UIElement holder = sender as UIElement;
Point p = e.GetPosition(holder);
bool startDrag = false;
BookPage b = GetTemplateChild("x_sheet_0") as BookPage;
if (p.X < b.RenderSize.Width)
{
if (_startPage == -3)
{
return;
}
startDrag = (p.X < _cornerSize) && (p.Y < _cornerSize);
}
else
{
if (_startPage == Items.Count - 3)
{
return;
}
b = GetTemplateChild("x_sheet_1") as BookPage;
startDrag = ((holder.RenderSize.Width - p.X) < _cornerSize) && (p.Y < _cornerSize);
}
if (startDrag)
{
b.StartDragging(e.GetPosition(b));
}
else
{
RefreshContent();
}
return;
}
_isDragging.StartDragging(e.GetPosition(_isDragging));
}
private void ContentControl_MouseDown(object sender, MouseButtonEventArgs e)
{
if (mAnimationActive)
{
return;
}
BookPage s = sender as BookPage;
if (s == null)
{
return;
}
if (s.CanDrag == false)
{
return;
}
Point p = e.GetPosition(s);
if (((p.X < _cornerSize) && (p.Y < _cornerSize)) ||
(((s.RenderSize.Width - p.X) < _cornerSize) && (p.Y < _cornerSize)))
{
_isDragging = s;
}
else
{
return;
}
BookPage s0 = GetTemplateChild("x_sheet_0") as BookPage;
BookPage s1 = GetTemplateChild("x_sheet_1") as BookPage;
Canvas.SetZIndex(s0, 0);
Canvas.SetZIndex(s1, 0);
Canvas.SetZIndex(s, 1);
s.StartDragging(p);
}