using PaintDotNet.Annotation.Command;
using PaintDotNet.Annotation.Enum;
using System.Windows.Forms;

namespace PaintDotNet.Annotation
{
    /// <summary>
    /// 工具
    /// </summary>
    public abstract class ToolObject : Tool
    {
        private Cursor cursor;

        /// <summary>
        /// Tool cursor.
        /// </summary>
        protected Cursor Cursor
        {
            get
            {
                return cursor;
            }
            set
            {
                cursor = value;
            }
        }

        /// <summary>
        /// Left mouse is released.
        /// New object is created and resized.
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public static void OnMouseUpTwo(ISurfaceBox surfacebox, MouseEventArgs e)
        {
            // TODO ZYH 这里需要处理连续绘制
            //surfacebox.ActiveTool = DrawToolType.Pointer;

            if (surfacebox.GraphicsList!=null && surfacebox.GraphicsList.Count>0)
            {
                //重新处理外接矩形，否则会有负值
                surfacebox.GraphicsList[0].Normalize();
                surfacebox.AddCommandToHistory(new CommandAdd(surfacebox.GraphicsList[0]));

                //surfacebox.Capture = false;
                surfacebox.Refresh();
                surfacebox.GraphicsList.Dirty = true;
            }
            OnMouseUpOne(surfacebox, e);
        }

        /// <summary>
        /// Add new object to draw area.
        /// Function is called when user left-clicks draw area,
        /// and one of ToolObject-derived tools is active.
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="o"></param>
        protected static void AddNewObject(ISurfaceBox drawArea, DrawObject o)
        {
            drawArea.GraphicsList.UnselectAll();
            o.Selected = true;
            drawArea.GraphicsList.Add(o);
            drawArea.GraphicsList.OnSelectChanged();
            //drawArea.Capture = true;
            drawArea.Refresh();
            drawArea.SetDirty();
        }

        protected static void RemoveOldObject(ISurfaceBox drawArea, DrawObject o)
        {
            drawArea.GraphicsList.RemoveObj(o);
            drawArea.GraphicsList.OnSelectChanged();
            drawArea.ResetUndoManager();
            drawArea.Refresh();
            drawArea.SetDirty(); 
        }

        protected static void AddNewObjectForView(ISurfaceBox drawArea, DrawObject o)
        {
            drawArea.GraphicsList.UnselectAll();
            o.Selected = true;
            drawArea.GraphicsList.Add(o);
            //drawArea.GraphicsList.OnSelectChanged();
            //drawArea.Capture = true;
            drawArea.Refresh();
            drawArea.SetDirty();
        }

        public static void OnMouseNotLeftDown(ISurfaceBox surfacebox, DrawObject o)
        {
            if (surfacebox.ContinuousDrawingLabel() && o == null)
            {
                surfacebox.ActiveTool = DrawToolType.Pointer;
                surfacebox.SetContinuousDrawingLabel(false);
            }
        }
    }
}