using System;
using System.Windows.Forms;
using FastReport.Design;
using FastReport.Utils;
using FastReport.Forms;

namespace FastReport
{
    /// <summary>
    /// The class introduces some menu items specific to the <b>TextObjectBase</b>.
    /// </summary>
    public class TextObjectBaseMenu : BreakableComponentMenu
    {
        #region Fields
        /// <summary>
        /// The "Format" menu item.
        /// </summary>
        public ContextMenuItem miFormat;

        /// <summary>
        /// The "Allow Expressions" menu item.
        /// </summary>
        public ContextMenuItem miAllowExpressions;

        /// <summary>
        /// The "Hide Zeros" menu item.
        /// </summary>
        public ContextMenuItem miHideZeros;

        private SelectedTextBaseObjects textObjects;
        #endregion

        #region Private Methods

        private void miFormat_Click(object sender, EventArgs e)
        {
            using (FormatEditorForm form = new FormatEditorForm())
            {
                form.TextObject = textObjects.First;
                if (form.ShowDialog() == DialogResult.OK)
                {
                    textObjects.SetFormat(form.Formats);
                    Change();
                }
            }
        }

        private void miAllowExpressions_Click(object sender, EventArgs e)
        {
            textObjects.SetAllowExpressions(miAllowExpressions.Checked);
            Change();
        }

        private void miHideZeros_Click(object sender, EventArgs e)
        {
            textObjects.SetHideZeros(miHideZeros.Checked);
            Change();
        }

        #endregion Private Methods

        /// <summary>
        /// Initializes a new instance of the <b>TextObjectBaseMenu</b> 
        /// class with default settings. 
        /// </summary>
        /// <param name="designer">The reference to a report designer.</param>
        public TextObjectBaseMenu(Designer designer) : base(designer)
        {
            textObjects = new SelectedTextBaseObjects(designer);
            textObjects.Update();

            MyRes res = new MyRes("ComponentMenu,TextObject");
            miFormat = CreateMenuItem(168, res.Get("Format"), new EventHandler(miFormat_Click));
            miAllowExpressions = CreateMenuItem(res.Get("AllowExpressions"), new EventHandler(miAllowExpressions_Click));
            miHideZeros = CreateMenuItem(res.Get("HideZeros"), new EventHandler(miHideZeros_Click));
            miAllowExpressions.BeginGroup = true;
            miAllowExpressions.CheckOnClick = true;
            miHideZeros.CheckOnClick = true;

            int insertPos = Items.IndexOf(miEdit) + 1;
            Items.Insert(insertPos, miFormat);
            insertPos = Items.IndexOf(miCut);
            Items.Insert(insertPos, miAllowExpressions);
            Items.Insert(insertPos + 1, miHideZeros);

            TextObjectBase obj = textObjects.First;
            bool enabled = !obj.HasRestriction(Restrictions.DontModify);
            miAllowExpressions.Enabled = enabled;
            miAllowExpressions.Checked = obj.AllowExpressions && enabled;
            miHideZeros.Enabled = enabled;
            miHideZeros.Checked = obj.HideZeros && enabled;
        }
    }
}