// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Diagnostics.CodeAnalysis;

namespace System.Windows.Forms.Design
{
    /// <summary>
    ///  Specifies a set of selection rule identifiers that can be used to indicate attributes for a selected component.
    /// </summary>
    // We need to combine the SelectionRules.
    [Flags]
    public enum SelectionRules
    {
        /// <summary>
        ///  Indicates no special selection attributes.
        /// </summary>
        None = 0x00000000,

        /// <summary>
        ///  Indicates the given component supports a location property that allows it to be moved on the screen, and that the selection service is not currently locked.
        /// </summary>
        Moveable = 0x10000000,

        /// <summary>
        ///  Indicates the given component has some form of visible user interface and the selection service is drawing a selection border around this user interface. If a selected component has this rule set, you can assume that the component implements <see cref='System.ComponentModel.IComponent' /> and that it is associated with a corresponding design instance.
        /// </summary>
        Visible = 0x40000000,

        /// <summary>
        ///  Indicates the given component is locked to its container. Overrides the moveable and sizeable properties of this enum.
        /// </summary>
        Locked = unchecked((int)0x80000000),

        /// <summary>
        ///  Indicates the given component supports resize from the top. This bit will be ignored unless the Sizeable bit is also set.
        /// </summary>
        TopSizeable = 0x00000001,

        /// <summary>
        ///  Indicates the given component supports resize from the bottom. This bit will be ignored unless the Sizeable bit is also set.
        /// </summary>
        BottomSizeable = 0x00000002,

        /// <summary>
        ///  Indicates the given component supports resize from the left. This bit will be ignored unless the Sizeable bit is also set.
        /// </summary>
        LeftSizeable = 0x00000004,

        /// <summary>
        ///  Indicates the given component supports resize from the right. This bit will be ignored unless the Sizeable bit is also set.
        /// </summary>
        RightSizeable = 0x00000008,

        /// <summary>
        ///  Indicates the given component supports sizing in all directions, and the selection service is not currently locked.
        /// </summary>
        AllSizeable = TopSizeable | BottomSizeable | LeftSizeable | RightSizeable
    }
}
