win8phoneApp/CampusAppWP8/CampusAppWP8/Model/TimeTable/AppointmentModel.cs

//-----------------------------------------------------------------------------
// <copyright file="AppointmentModel.cs" company="BTU/IIT">
//     Company copyright tag.
// </copyright>
// <author>fiedlchr</author>
// <sience>26.08.2013</sience>
//-----------------------------------------------------------------------------

namespace CampusAppWP8.Model.TimeTable
{
    using System;
    using System.Collections.Generic;
    using System.Text.RegularExpressions;
    using System.Windows.Shapes;
    using System.Xml.Serialization;
    using System.Windows.Controls;
    using System.Windows.Media;
    using System.Windows;
    using CampusAppWP8.Utility;
    using CampusAppWP8.Utility.ICSProperties;

    /// <summary>
    /// Model for appointments.
    /// </summary>
    [XmlRoot("root")]
    public class AppointmentModel
    {
        public static readonly double DAY_HOUR_SPACING = 50;
        
        /// <summary>The Visual object.</summary>
        private Rectangle rect = null;
        private Canvas canvas = null;
        private double offsetY = 0;
        private double height = 0;

        private ICalObject icalObj = null;

        public delegate void OnAppointmentClick(AppointmentModel sender);
        public event OnAppointmentClick OnClick = null;
        
        /// <summary>Initializes a new instance of the <see cref="AppointmentModel" /> class. </summary>
        public AppointmentModel()
        {
            this.rect = new Rectangle();
            this.canvas = new Canvas();
            this.canvas.DoubleTap += new EventHandler<System.Windows.Input.GestureEventArgs>(this.OnCanvasClick);
        }

        public AppointmentModel(string icsData) : this()
        {
            this.icalObj = ICSManager.ImportFromICS(icsData);
            
            this.CalcYOffset();
            this.CalcRect();
        }

        public double GetYOffset
        {
            get
            {
                return this.offsetY;
            }
        }
        
        public Canvas GetCanvas()
        {
            return this.canvas;
        }

        public int IsDate(DateTime date, int daySpan = 0)
        {
            int retValue = -1;

            ICalObject eventICal = this.GetVEventObj();

            DTStart startTime = eventICal.GetProperty(ICSTag.DT_START) as DTStart;
            
            if (startTime != null)
            {
                int toDaySpan = 0;

                while ((toDaySpan <= daySpan) && (retValue == -1))
                {
                    DateTime tempDT = date.AddDays(toDaySpan);

                    if (startTime.Value.Year.Equals(tempDT.Year)
                        && startTime.Value.Month.Equals(tempDT.Month)
                        && startTime.Value.Day.Equals(tempDT.Day))
                    {
                        retValue = toDaySpan;
                    }

                    toDaySpan++;
                }
            }

            return retValue;
        }

        private void CalcRect()
        {
            this.CalcHeight();

            this.rect.Width = 200;
            this.rect.MinHeight = this.height;
            this.rect.MaxHeight = 600;
            this.rect.Height = this.height;

            this.rect.StrokeThickness = 1;
            this.rect.Stroke = new SolidColorBrush(Colors.DarkGray);
            this.rect.Fill = new SolidColorBrush(Colors.Green);
            this.rect.RadiusX = 10;
            this.rect.RadiusY = 10;

            this.canvas.Children.Add(this.rect);
            
            if (this.icalObj != null)
            {
                ICalObject eventObj = this.GetVEventObj();
                Summary title = eventObj.GetProperty(ICSTag.SUMMARY) as Summary;

                TextBlock txtTitle = new TextBlock();
                txtTitle.Text = title.Value;
                txtTitle.FontSize = 12;
                txtTitle.FontWeight = FontWeights.Bold;
                txtTitle.TextWrapping = TextWrapping.Wrap;
                txtTitle.Width = this.rect.Width - 4.0;
                txtTitle.SetValue(Canvas.LeftProperty, 5.0);
                txtTitle.SetValue(Canvas.TopProperty, 5.0);

                /*
                Description desc = eventObj.GetProperty(ICSTag.DESCRIPTION) as Description;

                TextBlock txtDesc = new TextBlock();
                txtDesc.Text = desc.Value;
                txtDesc.FontSize = 12;
                txtDesc.TextWrapping = TextWrapping.Wrap;
                txtDesc.Width = this.rect.Width - 4.0;
                txtDesc.SetValue(Canvas.LeftProperty, 2.0);
                txtDesc.SetValue(Canvas.TopProperty, 20.0);
                txtDesc.Height = this.height - 22.0;
                */

                this.canvas.Children.Add(txtTitle);
                //this.canvas.Children.Add(txtDesc);
            }
        }

        private void CalcYOffset()
        {
            ICalObject eventObj = this.GetVEventObj();

            DTStart startTimeObj = eventObj.GetProperty(ICSTag.DT_START) as DTStart;

            if (startTimeObj == null)
            {
                throw new NullReferenceException();
            }

            DateTime startTimeValue = startTimeObj.Value;

            this.offsetY = (startTimeValue.Hour * AppointmentModel.DAY_HOUR_SPACING) + (startTimeValue.Minute / 60.0 * AppointmentModel.DAY_HOUR_SPACING);
        }

        private void CalcHeight()
        {
            ICalObject eventObj = this.GetVEventObj();

            DTStart startTimeObj = eventObj.GetProperty(ICSTag.DT_START) as DTStart;
            DTEnd endTimeObj = eventObj.GetProperty(ICSTag.DT_END) as DTEnd;

            if (startTimeObj == null
                || endTimeObj == null)
            {
                throw new NullReferenceException();
            }

            DateTime startTimeValue = startTimeObj.Value;
            DateTime endTimeValue = endTimeObj.Value;

            TimeSpan span = endTimeValue.Subtract(startTimeValue);

            this.height = span.TotalHours * AppointmentModel.DAY_HOUR_SPACING;

            if (this.height < (AppointmentModel.DAY_HOUR_SPACING / 4))
            {
                this.height = AppointmentModel.DAY_HOUR_SPACING / 4;
            }
        }

        private ICalObject GetVEventObj()
        {
            ICalObject retValue = this.icalObj.GetProperty(ICSTag.VEVENT) as ICalObject;

            if (retValue == null)
            {
                throw new NullReferenceException();
            }

            return retValue;
        }

        private void OnCanvasClick(object sender, EventArgs e)
        {
            if (this.OnClick != null)
            {
                this.OnClick(this);
            }
        }

        // ------------------------------------------------------
        public string Title
        {
            get
            {
                ICalObject eventICal = this.GetVEventObj();
                Summary tempSum = eventICal.GetProperty(ICSTag.SUMMARY) as Summary;

                return tempSum.Value;
            }
        }

        public string Date
        {
            get
            {
                string retValue = string.Empty;
                
                ICalObject eventICal = this.GetVEventObj();
                DTStart startDT = eventICal.GetProperty(ICSTag.DT_START) as DTStart;
                DTEnd endDT = eventICal.GetProperty(ICSTag.DT_END) as DTEnd;
                                
                if (startDT != null && endDT != null)
                {
                    if (startDT.Value.Year.Equals(endDT.Value.Year) && startDT.Value.Month.Equals(endDT.Value.Month) && startDT.Value.Day.Equals(endDT.Value.Day))
                    {
                        retValue = string.Format("{0:d}, {0:HH:ss} - {1:HH:ss}", startDT.Value, endDT.Value);
                    }
                    else
                    {
                        retValue = string.Format("{0:d} {0:HH:ss} - {1:d} {1:HH:ss}", startDT.Value, endDT.Value);
                    }
                }

                return retValue;
            }
        }

        public string Location
        {
            get
            {
                string retValue = string.Empty;
                
                ICalObject eventICal = this.GetVEventObj();
                Location loc = eventICal.GetProperty(ICSTag.LOCATION) as Location;

                if (loc != null)
                {
                    retValue = loc.Value;
                }

                return retValue;
            }
        }

        public string Description
        {
            get
            {
                string retValue = string.Empty;

                ICalObject eventICal = this.GetVEventObj();
                Description desc = eventICal.GetProperty(ICSTag.DESCRIPTION) as Description;

                if (desc != null)
                {
                    retValue = desc.Value;
                }

                return retValue;
            }
        }
    }
}