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Viewing changes to external/xwt/Xwt/Xwt/ListView.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/xwt/Xwt/Xwt/ListView.cs
 
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// 
 
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// ListView.cs
 
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//  
 
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// Author:
 
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//       Lluis Sanchez <lluis@xamarin.com>
 
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// 
 
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// Copyright (c) 2011 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 Xwt.Backends;
 
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using System.ComponentModel;
 
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using Xwt.Engine;
 
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namespace Xwt
 
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{
 
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        public class ListView: Widget, IColumnContainer, IScrollableWidget
 
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        {
 
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                ListViewColumnCollection columns;
 
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                IListDataSource dataSource;
 
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                SelectionMode mode;
 
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                protected new class WidgetBackendHost: Widget.WidgetBackendHost<ListView,IListViewBackend>, IListViewEventSink
 
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                {
 
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                        protected override void OnBackendCreated ()
 
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                        {
 
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                                base.OnBackendCreated ();
 
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                                Parent.columns.Attach (Backend);
 
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                        }
 
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                        public void OnSelectionChanged ()
 
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                        {
 
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                                ((ListView)Parent).OnSelectionChanged (EventArgs.Empty);
 
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                        }
 
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                        public override Size GetDefaultNaturalSize ()
 
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                        {
 
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                                return Xwt.Backends.DefaultNaturalSizes.ListView;
 
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                        }
 
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                }
 
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                static ListView ()
 
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                {
 
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                        MapEvent (TableViewEvent.SelectionChanged, typeof(ListView), "OnSelectionChanged");
 
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                }
 
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                public ListView (IListDataSource source): this ()
 
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                {
 
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                        DataSource = source;
 
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                }
 
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                public ListView ()
 
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                {
 
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                        columns = new ListViewColumnCollection (this);
 
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                        VerticalScrollPolicy = HorizontalScrollPolicy = ScrollPolicy.Automatic;
 
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                }
 
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                protected override BackendHost CreateBackendHost ()
 
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                {
 
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                        return new WidgetBackendHost ();
 
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                }
 
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                IListViewBackend Backend {
 
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                        get { return (IListViewBackend) BackendHost.Backend; }
 
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                }
 
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                public bool BorderVisible
 
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                {
 
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                        get { return Backend.BorderVisible; }
 
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                        set { Backend.BorderVisible = value; }
 
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                }
 
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                public ScrollPolicy VerticalScrollPolicy {
 
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                        get { return Backend.VerticalScrollPolicy; }
 
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                        set { Backend.VerticalScrollPolicy = value; }
 
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                }
 
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                public ScrollPolicy HorizontalScrollPolicy {
 
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                        get { return Backend.HorizontalScrollPolicy; }
 
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                        set { Backend.HorizontalScrollPolicy = value; }
 
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                }
 
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                public ListViewColumnCollection Columns {
 
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                        get {
 
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                                return columns;
 
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                        }
 
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                }
 
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                public IListDataSource DataSource {
 
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                        get {
 
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                                return dataSource;
 
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                        }
 
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                        set {
 
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                                if (dataSource != value) {
 
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                                        dataSource = value;
 
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                                        Backend.SetSource (dataSource, dataSource is IFrontend ? (IBackend) WidgetRegistry.GetBackend (dataSource) : null);
 
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                                }
 
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                        }
 
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                }
 
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                public bool HeadersVisible {
 
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                        get {
 
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                                return Backend.HeadersVisible;
 
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                        }
 
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                        set {
 
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                                Backend.HeadersVisible = value;
 
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                        }
 
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                }
 
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                public SelectionMode SelectionMode {
 
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                        get {
 
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                                return mode;
 
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                        }
 
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                        set {
 
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                                mode = value;
 
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                                Backend.SetSelectionMode (mode);
 
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                        }
 
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                }
 
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                public int SelectedRow {
 
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                        get {
 
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                                var items = SelectedRows;
 
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                                if (items.Length == 0)
 
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                                        return -1;
 
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                                else
 
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                                        return items [0];
 
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                        }
 
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                }
 
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                [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 
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                public int[] SelectedRows {
 
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                        get {
 
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                                return Backend.SelectedRows;
 
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                        }
 
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                }
 
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                public void SelectRow (int row)
 
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                {
 
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                        Backend.SelectRow (row);
 
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                }
 
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                public void UnselectRow (int row)
 
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                {
 
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                        Backend.UnselectRow (row);
 
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                }
 
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                public void SelectAll ()
 
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                {
 
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                        Backend.SelectAll ();
 
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                }
 
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                public void UnselectAll ()
 
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                {
 
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                        Backend.UnselectAll ();
 
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                }
 
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                void IColumnContainer.NotifyColumnsChanged ()
 
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                {
 
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                }
 
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                protected virtual void OnSelectionChanged (EventArgs a)
 
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                {
 
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                        if (selectionChanged != null)
 
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                                selectionChanged (this, a);
 
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                }
 
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                EventHandler selectionChanged;
 
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                public event EventHandler SelectionChanged {
 
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                        add {
 
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                                BackendHost.OnBeforeEventAdd (TableViewEvent.SelectionChanged, selectionChanged);
 
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                                selectionChanged += value;
 
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                        }
 
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                        remove {
 
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                                selectionChanged -= value;
 
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                                BackendHost.OnAfterEventRemove (TableViewEvent.SelectionChanged, selectionChanged);
 
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                        }
 
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                }       
 
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        }
 
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}
 
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