using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using SLMitsuControls;
using System.Windows.Media.Imaging;

using System.Windows.Browser;
using System.ComponentModel;
using System.Threading;
using System.Windows.Threading;

namespace SLBookDemoApp
{
	public partial class Page : UserControl, IDataProvider
	{
		private List<Button> pages;
		private List<Image> images;
		private List<Image> lstImg;
		private Int32 temps = 500;
		String strPDF;
		String pdfPlaquette;
		String pdfCommunication;
		String pdfAchat;
		String pdfRH;
		private IDictionary<String, String> _parameters = null;

		private bool _dragging = false;     // True when magnifying
		private const double _scale = 4.0;  // Scale factor
		private double _radius = 160.0;     // Radius of lens
		private Image _image;               // Magnified image
		private EllipseGeometry _lens;      // Clipping region
		private EllipseGeometry _border;    // Lens border
		private Path _path;                 // Path representing lens border

		public Page(IDictionary<String, String> p)
		{
			this._parameters = p;

			InitializeComponent();

			pages = new List<Button>();
			images = new List<Image>();
			lstImg = new List<Image>();

			Int32 nbParameter = _parameters.Count();
			if (nbParameter != 0)
			{
				temps = Int32.Parse(_parameters["temps"].ToString());

				pdfPlaquette = _parameters["pdf0"].ToString();
				if (String.IsNullOrEmpty(pdfPlaquette))
					btnPlaquette.Visibility = System.Windows.Visibility.Collapsed;
				else
					btnPlaquette.Visibility = System.Windows.Visibility.Visible;

				pdfCommunication = _parameters["pdf1"].ToString();
				if (String.IsNullOrEmpty(pdfCommunication))
					btnFicheCommunication.Visibility = System.Windows.Visibility.Collapsed;
				else
					btnFicheCommunication.Visibility = System.Windows.Visibility.Visible;

				pdfAchat = _parameters["pdf2"].ToString();
				if (String.IsNullOrEmpty(pdfAchat))
					btnAchat.Visibility = System.Windows.Visibility.Collapsed;
				else
					btnAchat.Visibility = System.Windows.Visibility.Visible;

				pdfRH = _parameters["pdf3"].ToString();
				if (String.IsNullOrEmpty(pdfRH))
					btnRH.Visibility = System.Windows.Visibility.Collapsed;
				else
					btnRH.Visibility = System.Windows.Visibility.Visible;
				
				Image img;
				foreach (KeyValuePair<String, String> item in _parameters)
				{

					if (item.Key.Contains("page") == true)
					{
						//lblParametres.Text += item.Key + " => " + item.Value + "\r\n";
						img = new Image();
						BitmapImage bi3 = new BitmapImage();
						bi3.UriSource = new Uri("http://www.monSite.fr/upload/plaquette/" + item.Value, UriKind.Absolute);
						img.Stretch = Stretch.Fill;
						img.Source = bi3;
						lstImg.Add(img);
					}
				}
			}

			// Create a magnified image for zooming
			_image = new Image();
			_image.Width = MainCanvas.Width * _scale;
			_image.Height = MainCanvas.Height * _scale;
			_image.Visibility = Visibility.Collapsed;

			// Render the main Canvas into the image at _scale times its nominal size
			WriteableBitmap bitmap = new WriteableBitmap((int)_image.Width, (int)_image.Height);
			ScaleTransform transform = new ScaleTransform();
			transform.ScaleX = transform.ScaleY = _scale;
			bitmap.Render(MainCanvas, transform);
			bitmap.Invalidate();
			_image.Source = bitmap;

			// Apply a clipping region to the magnified image
			_lens = new EllipseGeometry();
			_lens.RadiusX = _lens.RadiusY = _radius;
			_image.Clip = _lens;

			// Add the magnified image to the XAML DOM
			MainCanvas.Children.Add(_image);

			// Create a Path to represent the edge of the lens
			_border = new EllipseGeometry();
			_border.RadiusX = _border.RadiusY = _radius;

			_path = new Path();
			_path.Stroke = new SolidColorBrush(Color.FromArgb(0xFF, 0x80, 0x80, 0x80));
			_path.StrokeThickness = 1.0;
			_path.Data = _border;
			_path.Visibility = Visibility.Collapsed;

			// Add the Path to the XAML DOM
			MainCanvas.Children.Add(_path);
		}

		private void UserControl_Loaded(object sender, RoutedEventArgs e)
		{
			Button btn;
			foreach (Image item in lstImg)
			{
				btn = new Button();
				btn.Content = item;
				pages.Add(btn);
			}

			int i = 0;
			foreach (var b in pages)
			{
				if (i % 2 == 0)
					b.Click += Button_Click;
				else
					b.Click += Button_Click_1;
				i++;
			}

			book.SetData(this);
		}

		#region IDataProvider Members

		public object GetItem(int index)
		{
			return pages[index];
		}

		public int GetCount()
		{
			return pages.Count;
		}

		#endregion

		private void Button_Click(object sender, RoutedEventArgs e)
		{
			book.AnimateToNextPage(temps);
		}

		private void Button_Click_1(object sender, RoutedEventArgs e)
		{
			book.AnimateToPreviousPage(temps);
		}

		private void btnNext_Click(object sender, RoutedEventArgs e)
		{
			book.AnimateToNextPage(temps);
		}

		private void bntPrevious_Click(object sender, RoutedEventArgs e)
		{
			book.AnimateToPreviousPage(temps);
		}

		private void btnFicheCommunication_Click(object sender, RoutedEventArgs e)
		{
			HtmlPage.Window.Navigate(new Uri("http://www.monSite.fr/upload/plaquette/" + pdfCommunication), "_blank");
		}

		private void btnPlaquette_Click(object sender, RoutedEventArgs e)
		{
			HtmlPage.Window.Navigate(new Uri("http://www.monSite.fr/upload/plaquette/" + pdfPlaquette), "_blank");
		}

		private void btnAchat_Click(object sender, RoutedEventArgs e)
		{
			HtmlPage.Window.Navigate(new Uri("http://www.monSite.fr/upload/plaquette/" + pdfAchat), "_blank");
		}

		private void btnRH_Click(object sender, RoutedEventArgs e)
		{
			HtmlPage.Window.Navigate(new Uri("http://www.monSite.fr/upload/plaquette/" + pdfRH), "_blank");
		}

		private void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
		{
			double x = e.GetPosition(MainCanvas).X;
			double y = e.GetPosition(MainCanvas).Y;

			// Display the magnifying glass if the cursor is inside the Canvas
			if (x > 0.0 || x < MainCanvas.Width || y > 0.0 || y < MainCanvas.Height)
			{
				PositionLens(x, y);
				_image.Visibility = Visibility.Visible;
				_path.Visibility = Visibility.Visible;
				((FrameworkElement)sender).CaptureMouse();
				_dragging = true;
			}
		}

		private void OnMouseMove(object sender, MouseEventArgs e)
		{
			if (_dragging)
			{
				double x = e.GetPosition(MainCanvas).X;
				double y = e.GetPosition(MainCanvas).Y;

				// Hide the magnifying glass if the cursor has left the Canvas
				if (x < 0.0 || x > MainCanvas.Width || y < 0.0 || y > MainCanvas.Height)
				{
					_image.Visibility = Visibility.Collapsed;
					_path.Visibility = Visibility.Collapsed;
					((FrameworkElement)sender).ReleaseMouseCapture();
					_dragging = false;
				}
				else
					PositionLens(x, y);
			}
		}

		private void OnMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
		{
			// Hide the magnifying glass when the mouse button is released
			if (_dragging)
			{
				_image.Visibility = Visibility.Collapsed;
				_path.Visibility = Visibility.Collapsed;
				((FrameworkElement)sender).ReleaseMouseCapture();
				_dragging = false;
			}
		}

		private void PositionLens(double x, double y)
		{
			_lens.Center = new Point(x * _scale, y * _scale);
			_border.Center = new Point(x, y);
			_image.SetValue(Canvas.LeftProperty, (1 - _scale) * x);
			_image.SetValue(Canvas.TopProperty, (1 - _scale) * y);
		}

	}
}