71 lines
2.7 KiB
C#
71 lines
2.7 KiB
C#
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//------------------------------------------------------------------------------
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/// <copyright from='1997' to='2002' company='Microsoft Corporation'>
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/// Copyright (c) Microsoft Corporation. All Rights Reserved.
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///
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/// This source code is intended only as a supplement to Microsoft
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/// Development Tools and/or on-line documentation. See these other
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/// materials for detailed information regarding Microsoft code samples.
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///
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/// </copyright>
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//------------------------------------------------------------------------------
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namespace SampleDesignerHost {
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Windows.Forms;
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// This class represents a single selected object.
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internal class SampleSelectionItem {
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// Public objects this selection deals with
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private Component component; // the component that's selected
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private SampleSelectionService selectionMgr; // host interface
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private bool primary; // is this the primary selection?
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/// Constructor
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internal SampleSelectionItem(SampleSelectionService selectionMgr, Component component) {
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this.component = component;
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this.selectionMgr = selectionMgr;
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}
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internal Component Component {
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get {
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return component;
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}
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}
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/// Determines if this is the primary selection. The primary selection uses a
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/// different set of grab handles and generally supports sizing. The caller must
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/// verify that there is only one primary object; this merely updates the
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/// UI.
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internal virtual bool Primary {
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get {
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return primary;
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}
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set {
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if (this.primary != value) {
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this.primary = value;
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if (SelectionItemInvalidate != null)
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SelectionItemInvalidate(this, EventArgs.Empty);
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}
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}
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}
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internal event EventHandler SampleSelectionItemDispose ;
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internal event EventHandler SelectionItemInvalidate ;
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/// Disposes of this selection. We dispose of our region object if it still exists and we
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/// invalidate our UI so that we don't leave any turds laying around.
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internal virtual void Dispose() {
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if (primary) {
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selectionMgr.SetPrimarySelection((SampleSelectionItem)null);
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}
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if (SampleSelectionItemDispose != null)
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SampleSelectionItemDispose(this, EventArgs.Empty);
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}
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}
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}
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