using System;
using System.Collections.Generic;
using CPF.Drawing;
using CPF.Input;
using CPF.ReoGrid.Interaction;
using CPF.ReoGrid.Rendering;

namespace CPF.ReoGrid.Views
{
	internal class View : IView, IUserVisual
	{
		public IViewportController ViewportController
		{
			get
			{
				return this.viewportController;
			}
			set
			{
				this.viewportController = value;
			}
		}

		public View()
		{
			float num = 0f;
			float num2 = 0f;
			float num3 = 0f;
			float num4 = 0f;
			this.bounds = new Rect(ref num, ref num2, ref num3, ref num4);
			this.scaleFactor = 1f;
			this.children = null;
			this.Visible = true;
			this.PerformTransform = true;
		}

		public View(IViewportController vc) : this()
		{
			this.viewportController = vc;
		}

		public virtual Rect Bounds
		{
			get
			{
				return this.bounds;
			}
			set
			{
				this.bounds = value;
			}
		}

		public virtual float Top
		{
			get
			{
				return this.bounds.Top;
			}
			set
			{
				this.bounds.Y = value;
			}
		}

		public virtual float Left
		{
			get
			{
				return this.bounds.Left;
			}
			set
			{
				this.bounds.X = value;
			}
		}

		public virtual float Right
		{
			get
			{
				return this.bounds.Right;
			}
		}

		public virtual float Bottom
		{
			get
			{
				return this.bounds.Bottom;
			}
		}

		public virtual float Width
		{
			get
			{
				return this.bounds.Width;
			}
			set
			{
				this.bounds.Width = value;
			}
		}

		public virtual float Height
		{
			get
			{
				return this.bounds.Height;
			}
			set
			{
				this.bounds.Height = value;
			}
		}

		public virtual float ScaleFactor
		{
			get
			{
				return this.scaleFactor;
			}
			set
			{
				this.scaleFactor = value;
			}
		}

		public virtual bool Visible { get; set; }

		public virtual bool PerformTransform { get; set; }

		public virtual void Draw(CellDrawingContext dc)
		{
			this.DrawChildren(dc);
		}

		public virtual void DrawChildren(CellDrawingContext dc)
		{
			bool flag = this.children != null;
			if (flag)
			{
				foreach (IView view in this.children)
				{
					bool visible = view.Visible;
					if (visible)
					{
						dc.CurrentView = view;
						view.Draw(dc);
						dc.CurrentView = null;
					}
				}
			}
		}

		public virtual Point PointToView(Point p)
		{
			float num = (p.X - this.bounds.Left) / this.scaleFactor;
			float num2 = (p.Y - this.bounds.Top) / this.scaleFactor;
			return new Point(ref num, ref num2);
		}

		public virtual Point PointToController(Point p)
		{
			float num = p.X * this.scaleFactor + this.bounds.Left;
			float num2 = p.Y * this.scaleFactor + this.bounds.Top;
			return new Point(ref num, ref num2);
		}

		public virtual IView GetViewByPoint(Point p)
		{
			IView childrenByPoint = this.GetChildrenByPoint(p);
			bool flag = childrenByPoint != null;
			IView result;
			if (flag)
			{
				result = childrenByPoint;
			}
			else
			{
				result = (this.bounds.Contains(p) ? this : null);
			}
			return result;
		}

		public virtual IView GetChildrenByPoint(Point p)
		{
			bool flag = this.children != null && this.children.Count > 0;
			if (flag)
			{
				for (int i = this.children.Count - 1; i >= 0; i--)
				{
					IView view = this.children[i];
					bool flag2 = !view.Visible;
					if (!flag2)
					{
						IView viewByPoint = view.GetViewByPoint(p);
						bool flag3 = viewByPoint != null;
						if (flag3)
						{
							return viewByPoint;
						}
					}
				}
			}
			return null;
		}

		public virtual void Invalidate()
		{
			bool flag = this.viewportController != null;
			if (flag)
			{
				this.viewportController.Invalidate();
			}
		}

		public virtual bool OnMouseDown(Point location, MouseButtons buttons, InputModifiers modifiers)
		{
			return false;
		}

		public virtual bool OnMouseMove(Point location, MouseButtons buttons)
		{
			return false;
		}

		public virtual bool OnMouseUp(Point location, MouseButtons buttons, InputModifiers modifiers)
		{
			return false;
		}

		public virtual bool OnMouseDoubleClick(Point location, MouseButtons buttons)
		{
			return false;
		}

		public virtual bool OnKeyDown(KeyCode key)
		{
			return false;
		}

		public virtual void UpdateView()
		{
			bool flag = this.children != null;
			if (flag)
			{
				foreach (IView view in this.children)
				{
					view.UpdateView();
				}
			}
		}

		public virtual void SetFocus()
		{
			this.ViewportController.FocusView = this;
		}

		public virtual void FreeFocus()
		{
			this.ViewportController.FocusView = null;
		}

		public IViewport Parent { get; set; }

		public IList<IView> Children
		{
			get
			{
				return this.children;
			}
			set
			{
				this.children = value;
			}
		}

		private IViewportController viewportController;

		protected Rect bounds;

		protected float scaleFactor;

		protected IList<IView> children;
	}
}