Source/Ribbon/GalleryContainer.cs

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using System;
using System.Text;
using System.ComponentModel;
using System.Drawing;
using DevComponents.UI.ContentManager;
using System.Collections;
using System.Drawing.Drawing2D;

namespace DevComponents.DotNetBar
{
    /// <summary>
    /// Represents the class that provides Office 2007 style Gallery container with drop-down ability.
    /// </summary>
    [ToolboxItem(false), DesignTimeVisible(false), ProvideProperty("GalleryGroup", typeof(BaseItem)), Designer(typeof(Design.GalleryContainerDesigner))]
    public class GalleryContainer : ItemContainer, IExtenderProvider
    {
        #region Private Variables
        private bool m_EnableGalleryPopup = true;
        private ButtonItem m_ScrollUp = null;
        private ButtonItem m_ScrollDown = null;
        private ButtonItem m_PopupGallery = null;
        private Size m_ScrollButtonSize = new Size(15, 20);
        private int m_ScrollButtonContentSpacing = 1;
        private Size m_DefaultSize = Size.Empty;
        private Point m_ScrollPosition = Point.Empty;
        private Size m_PopupGallerySize = Size.Empty;
        private ScrollBar.ScrollBarCore m_ScrollBar = null;
        private bool m_PopupGalleryStyle = false;
        private Rectangle m_ViewRectangle = Rectangle.Empty;
        private Size m_RecommendedSize = Size.Empty;
        private bool m_StretchGallery = false;
        internal bool SystemGallery = false;
        private bool m_IncrementalSizing = true;
        private GalleryGroupCollection m_Groups = null;
        private bool m_ScrollAnimation = true;
        private ThreadUIOperation m_ThreadUI = null;
        private bool m_PopupUsesStandardScrollbars = true;
        #endregion

        #region Events
        /// <summary>
        /// Occurs when Gallery popup item is about to open.
        /// </summary>
        [System.ComponentModel.Description("Occurs when Gallery popup item is about to open.")]
        public event DotNetBarManager.PopupOpenEventHandler GalleryPopupOpen;

        /// <summary>
        /// Occurs just before Gallery popup window is shown.
        /// </summary>
        [System.ComponentModel.Description("Occurs just before Gallery popup window is shown.")]
        public event EventHandler GalleryPopupShowing;

        /// <summary>
        /// Occurs before the Gallery popup item is closed.
        /// </summary>
        [System.ComponentModel.Description("Occurs before the Gallery popup item is closed")]
        public event EventHandler GalleryPopupClose;

        /// <summary>
        /// Occurs after Gallery popup item has been closed.