70 строки
2.1 KiB
C#
70 строки
2.1 KiB
C#
//
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// ExComboBox.cs
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//
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// Author:
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// Eric Maupin <ermau@xamarin.com>
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//
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// Copyright (c) 2012 Xamarin, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// 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
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// all copies or 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
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Windows;
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using SW = System.Windows;
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using SWC = System.Windows.Controls;
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namespace Xwt.WPFBackend
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{
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public class ExComboBox
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: System.Windows.Controls.ComboBox, IWpfWidget
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{
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public event EventHandler TextChanged;
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public WidgetBackend Backend
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{
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get;
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set;
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}
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protected override SW.Size MeasureOverride (SW.Size constraint)
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{
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var s = base.MeasureOverride (constraint);
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return Backend.MeasureOverride (constraint, s);
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}
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protected override void OnTextInput (SW.Input.TextCompositionEventArgs e)
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{
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base.OnTextInput (e);
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OnTextChanged (EventArgs.Empty);
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}
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protected override void OnSelectionChanged (SWC.SelectionChangedEventArgs e)
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{
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base.OnSelectionChanged (e);
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OnTextChanged (EventArgs.Empty);
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}
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protected virtual void OnTextChanged (EventArgs e)
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{
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var changed = TextChanged;
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if (changed != null)
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changed (this, e);
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}
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}
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} |