#region ================== Namespaces

using System;
using CodeImp.DoomBuilder.Map;
using CodeImp.DoomBuilder.Rendering;
using System.Drawing;

#endregion

namespace CodeImp.DoomBuilder.BuilderModes
{
    public class ResultOffGridVertex : ErrorResult
    {
        #region ================== Variables

        private readonly Vertex vertex;

        #endregion

        #region ================== Properties

        public override int Buttons { get { return 1; } }
        public override string Button1Text { get { return "Align Vertex"; } }

        #endregion

        #region ================== Constructor / Destructor

        public ResultOffGridVertex(Vertex v)
        {
            // Initialize
            vertex = v;
            viewobjects.Add(v);
            hidden = v.IgnoredErrorChecks.Contains(this.GetType());
            description = "This vertex is not aligned with the grid.";
        }

        #endregion

        #region ================== Methods

        // This sets if this result is displayed in ErrorCheckForm (mxd)
        internal override void Hide(bool hide)
        {
            hidden = hide;
            Type t = this.GetType();
            if (hide) vertex.IgnoredErrorChecks.Add(t);
            else if (vertex.IgnoredErrorChecks.Contains(t)) vertex.IgnoredErrorChecks.Remove(t);
        }

        // This must return the string that is displayed in the listbox
        public override string ToString()
        {
            return "Vertex " + vertex.Index + " at " + vertex.Position.x + ", " + vertex.Position.y + " is not aligned with the grid.";
        }

        // Rendering
        public override void RenderOverlaySelection(IRenderer2D renderer)
        {
            renderer.RenderRectangleFilled(new RectangleF(vertex.Position.x - 3, vertex.Position.y - 3, 6f, 6f), General.Colors.Selection, true);
        }

        // This removes the vertex
        public override bool Button1Click(bool batchMode)
        {
            if (!batchMode) General.Map.UndoRedo.CreateUndo("Align vertex");
            vertex.Move(new Geometry.Vector2D((int)Math.Round(vertex.Position.x), (int)Math.Round(vertex.Position.y)));
            General.Map.IsChanged = true;
            General.Map.ThingsFilter.Update();
            return true;
        }

        #endregion
    }
}