using System;
using System.Windows.Forms;

namespace FastReport
{
    partial class ReportComponentBase
    {

        #region Properties
        /// <summary>
        /// This event occurs when the user moves the mouse over the object in the preview window.
        /// </summary>
        public event MouseEventHandler MouseMove;

        /// <summary>
        /// This event occurs when the user releases the mouse button in the preview window.
        /// </summary>
        public event MouseEventHandler MouseUp;

        /// <summary>
        /// This event occurs when the user clicks the mouse button in the preview window.
        /// </summary>
        public event MouseEventHandler MouseDown;

        /// <summary>
        /// This event occurs when the mouse enters the object's bounds in the preview window.
        /// </summary>
        public event EventHandler MouseEnter;

        /// <summary>
        /// This event occurs when the mouse leaves the object's bounds in the preview window.
        /// </summary>
        public event EventHandler MouseLeave;
        #endregion

        #region Public Methods
        /// <summary>
        /// Copies event handlers from another similar object.
        /// </summary>
        /// <param name="source">The object to copy handlers from.</param>
        public virtual void AssignPreviewEvents(Base source)
        {
            ReportComponentBase src = source as ReportComponentBase;
            if (src == null)
                return;
            Click = src.Click;
            MouseMove = src.MouseMove;
            MouseUp = src.MouseUp;
            MouseDown = src.MouseDown;
            MouseEnter = src.MouseEnter;
            MouseLeave = src.MouseLeave;
        }

        internal void ApplyHoverStyle()
        {
            ApplyStyle(HoverStyle);
        }

        /// <summary>
        /// This method fires the <b>MouseMove</b> event and the script code connected to the <b>MouseMoveEvent</b>.
        /// </summary>
        /// <param name="e">Event data.</param>
        public virtual void OnMouseMove(MouseEventArgs e)
        {
            if (MouseMove != null)
                MouseMove(this, e);
            InvokeEvent(MouseMoveEvent, e);
        }

        /// <summary>
        /// This method fires the <b>MouseUp</b> event and the script code connected to the <b>MouseUpEvent</b>.
        /// </summary>
        /// <param name="e">Event data.</param>
        public virtual void OnMouseUp(MouseEventArgs e)
        {
            if (MouseUp != null)
                MouseUp(this, e);
            InvokeEvent(MouseUpEvent, e);
        }

        /// <summary>
        /// This method fires the <b>MouseDown</b> event and the script code connected to the <b>MouseDownEvent</b>.
        /// </summary>
        /// <param name="e">Event data.</param>
        public virtual void OnMouseDown(MouseEventArgs e)
        {
            if (MouseDown != null)
                MouseDown(this, e);
            InvokeEvent(MouseDownEvent, e);
        }

        /// <summary>
        /// This method fires the <b>MouseEnter</b> event and the script code connected to the <b>MouseEnterEvent</b>.
        /// </summary>
        /// <param name="e">Event data.</param>
        public virtual void OnMouseEnter(EventArgs e)
        {
            if (!String.IsNullOrEmpty(HoverStyle))
            {
                SaveStyle();
                ApplyHoverStyle();
                if (Page != null)
                    Page.Refresh();
            }
            if (MouseEnter != null)
                MouseEnter(this, e);
            InvokeEvent(MouseEnterEvent, e);
        }

        /// <summary>
        /// This method fires the <b>MouseLeave</b> event and the script code connected to the <b>MouseLeaveEvent</b>.
        /// </summary>
        /// <param name="e">Event data.</param>
        public virtual void OnMouseLeave(EventArgs e)
        {
            if (!String.IsNullOrEmpty(HoverStyle))
            {
                RestoreStyle();
                if (Page != null)
                    Page.Refresh();
            }
            if (MouseLeave != null)
                MouseLeave(this, e);
            InvokeEvent(MouseLeaveEvent, e);
        }

        /// <summary>
        /// This method is fired when the user scrolls the mouse in the preview window.
        /// </summary>
        /// <param name="e">Event data.</param>
        public virtual void OnMouseWheel(MouseEventArgs e)
        {
        }

        /// <summary>
        /// Gets the object's context menu when right-clicked in the preview window.
        /// </summary>
        /// <returns>Null reference if object does not have a menu.</returns>
        public virtual ContextMenuStrip GetPreviewContextMenu()
        {
            return null;
        }
        #endregion
    }
}