133 строки
3.4 KiB
C#
133 строки
3.4 KiB
C#
//
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// FileDialogBackend.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.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Xwt.Backends;
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using WindowsFileDialog = Microsoft.Win32.FileDialog;
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namespace Xwt.WPFBackend
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{
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public abstract class FileDialogBackend<T>
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: Backend, IFileDialogBackend
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where T : WindowsFileDialog
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{
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public string Title
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{
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get { return this.dialog.Title; }
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set { this.dialog.Title = value; }
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}
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public string FileName
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{
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get { return this.dialog.FileName; }
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}
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public string[] FileNames
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{
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get { return this.dialog.FileNames; }
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}
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public string CurrentFolder
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{
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get { return this.dialog.InitialDirectory; }
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set { this.dialog.InitialDirectory = value; }
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}
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public FileDialogFilter ActiveFilter
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{
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get
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{
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if (this.filters.Count == 0)
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return null;
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return this.filters [this.dialog.FilterIndex - 1];
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}
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set { this.dialog.FilterIndex = this.filters.IndexOf (value); }
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}
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public bool Run (IWindowFrameBackend parent)
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{
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bool? ok;
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WindowBackend windowBackend = parent as WindowBackend;
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if (windowBackend != null){
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ok = this.dialog.ShowDialog (windowBackend.Window);
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} else {
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ok = this.dialog.ShowDialog ();
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}
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return ok.HasValue && ok.Value;
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}
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public void Cleanup ()
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{
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this.dialog = null;
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}
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public virtual void Initialize (IEnumerable<FileDialogFilter> newFilters, bool multiselect, string initialFileName)
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{
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Initialize (newFilters, initialFileName);
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}
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private List<FileDialogFilter> filters;
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protected T dialog;
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protected void Initialize (IEnumerable<FileDialogFilter> newFilters, string initialFileName)
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{
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this.filters = newFilters.ToList();
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this.dialog.Filter = GetFilters (this.filters);
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this.dialog.FileName = initialFileName;
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}
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private string GetFilters (IEnumerable<FileDialogFilter> filters)
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{
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StringBuilder builder = new StringBuilder();
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foreach (FileDialogFilter filter in filters) {
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if (builder.Length > 0)
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builder.Append ("|");
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builder.Append (filter.Name);
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builder.Append ("|");
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int i = 0;
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foreach (var pattern in filter.Patterns) {
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if (i++ > 0)
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builder.Append (";");
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builder.Append (pattern);
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}
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}
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return builder.ToString ();
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}
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}
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}
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