using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Windows.Forms;
using FastReport.Design;

namespace FastReport
{
    internal class SelectedPictureObjects
    {
        private List<PictureObject> list;
        private Designer designer;

        public PictureObject First
        {
            get { return list.Count > 0 ? list[0] : null; }
        }

        public int Count
        {
            get { return list.Count; }
        }

        public bool Enabled
        {
            get
            {
                return Count > 1 || (Count == 1 && CanModify(First));
            }
        }

        private List<PictureObject> ModifyList
        {
            get { return list.FindAll(CanModify); }
        }

        private bool CanModify(PictureObject c)
        {
            return !c.HasRestriction(Restrictions.DontModify);
        }

        public void Update()
        {
            list.Clear();
            if (designer.SelectedObjects != null)
            {
                foreach (Base c in designer.SelectedObjects)
                {
                    if (c is PictureObject)
                        list.Add(c as PictureObject);
                }
            }
        }

        public void SetSizeMode(PictureBoxSizeMode value)
        {
            foreach (PictureObject c in ModifyList)
            {
                c.SizeMode = value;
            }
        }

        public SelectedPictureObjects(Designer designer)
        {
            this.designer = designer;
            list = new List<PictureObject>();
        }
    }
}