98 строки
3.7 KiB
C#
98 строки
3.7 KiB
C#
// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Windows;
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namespace ICSharpCode.WpfDesign
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{
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/// <summary>
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/// Behavior interface implemented by container elements to support resizing
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/// child elements.
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/// </summary>
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public interface IPlacementBehavior
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{
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/// <summary>
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/// Gets if the child element can be resized.
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/// </summary>
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bool CanPlace(IEnumerable<DesignItem> childItems, PlacementType type, PlacementAlignment position);
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/// <summary>
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/// Starts placement mode for this container.
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/// </summary>
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void BeginPlacement(PlacementOperation operation);
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/// <summary>
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/// Ends placement mode for this container.
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/// </summary>
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void EndPlacement(PlacementOperation operation);
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/// <summary>
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/// Gets the original position of the child item.
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/// </summary>
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Rect GetPosition(PlacementOperation operation, DesignItem child);
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/// <summary>
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/// Is called before SetPosition is called for the placed items.
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/// This may update the bounds on the placement operation (e.g. when snaplines are enabled).
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/// </summary>
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void BeforeSetPosition(PlacementOperation operation);
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/// <summary>
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/// Updates the placement of the element specified in the placement operation.
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/// </summary>
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void SetPosition(PlacementInformation info);
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/// <summary>
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/// Gets if leaving this container is allowed for the specified operation.
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/// </summary>
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bool CanLeaveContainer(PlacementOperation operation);
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/// <summary>
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/// Remove the placed children from this container.
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/// </summary>
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void LeaveContainer(PlacementOperation operation);
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/// <summary>
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/// Gets if entering this container is allowed for the specified operation.
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/// </summary>
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bool CanEnterContainer(PlacementOperation operation, bool shouldAlwaysEnter);
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/// <summary>
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/// Let the placed children enter this container.
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/// </summary>
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void EnterContainer(PlacementOperation operation);
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/// <summary>
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/// Place Point.
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/// </summary>
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Point PlacePoint(Point point);
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}
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/// <summary>
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/// Behavior interface for root elements (elements where item.Parent is null).
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/// Is used instead of <see cref="IPlacementBehavior"/> to support resizing the root element.
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/// </summary>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1040:AvoidEmptyInterfaces",
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Justification = "The root component might have both a PlacementBehavior and a RootPlacementBehavior, which must be distinguished by DesignItem.GetBehavior")]
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public interface IRootPlacementBehavior : IPlacementBehavior
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{
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}
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}
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