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Viewing changes to external/xwt/Xwt.WPF/Xwt.WPFBackend/ListViewBackend.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
ImportĀ upstreamĀ versionĀ 4.0.5+dfsg

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external/xwt/Xwt.WPF/Xwt.WPFBackend/ListViewBackend.cs
 
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ļ»æ// 
 
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// ListViewBackend.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.Windows;
 
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using System.Windows.Controls;
 
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using Xwt.Engine;
 
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using Xwt.WPFBackend.Utilities;
 
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using SWC = System.Windows.Controls;
 
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using Xwt.Backends;
 
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namespace Xwt.WPFBackend
 
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{
 
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        public class ListViewBackend
 
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                : WidgetBackend, IListViewBackend
 
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        {
 
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                public ListViewBackend()
 
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                {
 
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                        ListView = new ExListView();
 
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                        ListView.View = this.view;
 
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                }
 
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                public ScrollPolicy VerticalScrollPolicy {
 
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                        get { return ScrollViewer.GetVerticalScrollBarVisibility (this.ListView).ToXwtScrollPolicy (); }
 
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                        set { ScrollViewer.SetVerticalScrollBarVisibility (ListView, value.ToWpfScrollBarVisibility ()); }
 
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                }
 
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                public ScrollPolicy HorizontalScrollPolicy {
 
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                        get { return ScrollViewer.GetHorizontalScrollBarVisibility (this.ListView).ToXwtScrollPolicy (); }
 
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                        set { ScrollViewer.SetHorizontalScrollBarVisibility (ListView, value.ToWpfScrollBarVisibility ()); }
 
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                }
 
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                private bool borderVisible = true;
 
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                public bool BorderVisible
 
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                {
 
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                        get { return this.borderVisible; }
 
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                        set
 
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                        {
 
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                                if (this.borderVisible == value)
 
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                                        return;
 
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                                if (value)
 
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                                        ListView.ClearValue (Control.BorderBrushProperty);
 
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                                else
 
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                                        ListView.BorderBrush = null;
 
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                                this.borderVisible = value;
 
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                        }
 
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                }
 
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                public bool HeadersVisible {
 
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                        get { return this.headersVisible; }
 
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                        set {
 
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                                this.headersVisible = value;
 
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                                if (value) {
 
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                                    if (this.view.ColumnHeaderContainerStyle != null)
 
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                                                this.view.ColumnHeaderContainerStyle.Setters.Remove (HideHeadersSetter);
 
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                                } else {
 
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                                        if (this.view.ColumnHeaderContainerStyle == null)
 
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                                                this.view.ColumnHeaderContainerStyle = new Style();
 
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                                        this.view.ColumnHeaderContainerStyle.Setters.Add (HideHeadersSetter);
 
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                                }
 
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                        }
 
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                }
 
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                public int[] SelectedRows {
 
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                        get { return ListView.SelectedItems.Cast<object>().Select (ListView.Items.IndexOf).ToArray (); }
 
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                }
 
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                public object AddColumn (ListViewColumn col)
 
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                {
 
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                        var column = new GridViewColumn ();
 
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                        column.CellTemplate = new DataTemplate { VisualTree = CellUtil.CreateBoundColumnTemplate (col.Views) };
 
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                        if (col.HeaderView != null)
 
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                                column.HeaderTemplate = new DataTemplate { VisualTree = CellUtil.CreateBoundCellRenderer (col.HeaderView) };
 
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                        else
 
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                                column.Header = col.Title;
 
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                        this.view.Columns.Add (column);
 
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                        return column;
 
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                }
 
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                public void RemoveColumn (ListViewColumn col, object handle)
 
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                {
 
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                        this.view.Columns.Remove ((GridViewColumn) handle);
 
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                }
 
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                public void UpdateColumn (ListViewColumn col, object handle, ListViewColumnChange change)
 
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                {
 
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                        var column = (GridViewColumn) handle;
 
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                        column.CellTemplate = new DataTemplate { VisualTree = CellUtil.CreateBoundColumnTemplate (col.Views) };
 
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                        if (col.HeaderView != null)
 
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                                column.HeaderTemplate = new DataTemplate { VisualTree = CellUtil.CreateBoundCellRenderer (col.HeaderView) };
 
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                        else
 
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                                column.Header = col.Title;
 
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                }
 
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                public void SetSelectionMode (SelectionMode mode)
 
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                {
 
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                        switch (mode) {
 
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                        case SelectionMode.Single:
 
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                                ListView.SelectionMode = SWC.SelectionMode.Single;
 
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                                break;
 
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                        case SelectionMode.Multiple:
 
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                                ListView.SelectionMode = SWC.SelectionMode.Extended;
 
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                                break;
 
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                        }
 
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                }
 
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                public void SelectAll ()
 
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                {
 
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                        ListView.SelectAll();
 
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                }
 
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                public void UnselectAll ()
 
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                {
 
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                        ListView.UnselectAll();
 
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                }
 
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                public void SetSource (IListDataSource source, IBackend sourceBackend)
 
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                {
 
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                        var dataSource = sourceBackend as ListDataSource;
 
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                        if (dataSource != null)
 
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                                ListView.ItemsSource = dataSource;
 
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                        else
 
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                                ListView.ItemsSource = new ListSourceNotifyWrapper (source);
 
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                }
 
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                public void SelectRow (int pos)
 
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                {
 
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                        object item = ListView.Items [pos];
 
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                        if (ListView.SelectionMode == System.Windows.Controls.SelectionMode.Single)
 
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                                ListView.SelectedItem = item;
 
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                        else
 
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                                ListView.SelectedItems.Add (item);
 
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                }
 
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                public void UnselectRow (int pos)
 
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                {
 
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                        object item = ListView.Items [pos];
 
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                        if (ListView.SelectionMode == System.Windows.Controls.SelectionMode.Extended)
 
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                                ListView.SelectedItems.Remove (item);
 
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                        else if (ListView.SelectedItem == item)
 
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                                ListView.SelectedItem = null;
 
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                }
 
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                public override void EnableEvent(object eventId)
 
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                {
 
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                        base.EnableEvent (eventId);
 
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                        if (eventId is TableViewEvent) {
 
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                                switch ((TableViewEvent)eventId) {
 
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                                case TableViewEvent.SelectionChanged:
 
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                                        ListView.SelectionChanged += OnSelectionChanged;
 
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                                        break;
 
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                                }
 
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                        }
 
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                }
 
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                public override void DisableEvent (object eventId)
 
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                {
 
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                        base.DisableEvent (eventId);
 
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                        if (eventId is TableViewEvent) {
 
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                                switch ((TableViewEvent)eventId) {
 
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                                case TableViewEvent.SelectionChanged:
 
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                                        ListView.SelectionChanged -= OnSelectionChanged;
 
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                                        break;
 
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                                }
 
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                        }
 
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                }
 
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                private void OnSelectionChanged (object sender, SelectionChangedEventArgs e)
 
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                {
 
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                        Toolkit.Invoke (ListViewEventSink.OnSelectionChanged);
 
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                }
 
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                private bool headersVisible;
 
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                private readonly GridView view = new GridView();
 
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                protected ExListView ListView {
 
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                        get { return (ExListView) Widget; }
 
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                        set { Widget = value; }
 
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                }
 
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                protected IListViewEventSink ListViewEventSink {
 
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                        get { return (IListViewEventSink) EventSink; }
 
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                }
 
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                private static readonly Setter HideHeadersSetter = new Setter (UIElement.VisibilityProperty, Visibility.Collapsed);
 
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        }
 
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}