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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| // | ||
| // ExListBox.cs | ||
| // | ||
| // Author: | ||
| // Eric Maupin <ermau@xamarin.com> | ||
| // | ||
| // Copyright (c) 2012 Xamarin, Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.Specialized; | ||
| using System.Windows; | ||
| using System.Windows.Controls; | ||
| using SWC = System.Windows.Controls; | ||
|
|
||
| namespace Xwt.WPFBackend | ||
| { | ||
| public class ExListBox | ||
| : SWC.ListBox, IWpfWidget | ||
| { | ||
| public WidgetBackend Backend { | ||
| get; | ||
| set; | ||
| } | ||
|
|
||
| public static readonly DependencyProperty SelectedIndexesProperty = DependencyProperty.Register ( | ||
| "SelectedIndexes", | ||
| typeof (ICollection<int>), typeof (ExListView), | ||
| new UIPropertyMetadata (OnSelectedIndexesPropertyChanged)); | ||
|
|
||
| public ICollection<int> SelectedIndexes | ||
| { | ||
| get | ||
| { | ||
| if (SelectionMode == SWC.SelectionMode.Single) | ||
| throw new InvalidOperationException(); | ||
|
|
||
| return (ICollection<int>) GetValue (SelectedIndexesProperty); | ||
| } | ||
|
|
||
| set { SetValue (SelectedIndexesProperty, value); } | ||
| } | ||
|
|
||
| protected override void OnSelectionChanged (SelectionChangedEventArgs e) | ||
| { | ||
| if (this.changingSelection) { | ||
| base.OnSelectionChanged (e); | ||
| return; | ||
| } | ||
|
|
||
| this.changingSelection = true; | ||
| if (e.AddedItems != null) { | ||
| foreach (object item in e.AddedItems) { | ||
| SelectedIndexes.Add (Items.IndexOf (item)); | ||
| } | ||
| } | ||
|
|
||
| if (e.RemovedItems != null) { | ||
| foreach (object item in e.RemovedItems) { | ||
| SelectedIndexes.Remove (Items.IndexOf (item)); | ||
| } | ||
| } | ||
|
|
||
| this.changingSelection = false; | ||
| base.OnSelectionChanged (e); | ||
| } | ||
|
|
||
| protected virtual void OnSelectedIndexesChanged (DependencyPropertyChangedEventArgs e) | ||
| { | ||
| var oldNotifying = e.OldValue as INotifyCollectionChanged; | ||
| if (oldNotifying != null) | ||
| oldNotifying.CollectionChanged -= SelectedIndexesChanged; | ||
|
|
||
| if (SelectionMode == SWC.SelectionMode.Single) | ||
| throw new InvalidOperationException(); | ||
|
|
||
| var newNotifying = e.NewValue as INotifyCollectionChanged; | ||
| if (newNotifying != null) | ||
| newNotifying.CollectionChanged += SelectedIndexesChanged; | ||
| } | ||
|
|
||
| private bool changingSelection; | ||
| private void SelectedIndexesChanged (object sender, NotifyCollectionChangedEventArgs e) | ||
| { | ||
| if (this.changingSelection) | ||
| return; | ||
|
|
||
| this.changingSelection = true; | ||
|
|
||
| if (SelectionMode == SWC.SelectionMode.Single) { | ||
| SelectedItem = null; | ||
| if (e.NewItems != null && e.NewItems.Count > 0) | ||
| SelectedItem = Items [(int) e.NewItems [0]]; | ||
|
|
||
| this.changingSelection = false; | ||
| return; | ||
| } | ||
|
|
||
| if (e.Action == NotifyCollectionChangedAction.Reset) { | ||
| SelectedItems.Clear(); | ||
| foreach (int index in SelectedIndexes) | ||
| { | ||
| SelectedItems.Add (Items[index]); | ||
| if (SelectionMode == SWC.SelectionMode.Single) | ||
| break; | ||
| } | ||
| } else { | ||
| if (e.NewItems != null) { | ||
| foreach (int index in e.NewItems) | ||
| SelectedItems.Add (Items[index]); | ||
| } | ||
|
|
||
| if (e.OldItems != null) { | ||
| foreach (int index in e.OldItems) | ||
| SelectedItems.Remove (Items [index]); | ||
| } | ||
| } | ||
|
|
||
| this.changingSelection = false; | ||
| } | ||
|
|
||
| private static void OnSelectedIndexesPropertyChanged (DependencyObject dobj, DependencyPropertyChangedEventArgs e) | ||
| { | ||
| var listbox = (ExListBox) dobj; | ||
| listbox.OnSelectedIndexesChanged (e); | ||
| } | ||
|
|
||
| protected override System.Windows.Size MeasureOverride (System.Windows.Size constraint) | ||
| { | ||
| var s = base.MeasureOverride (constraint); | ||
| return Backend.MeasureOverride (constraint, s); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| // | ||
| // ListBoxBackend.cs | ||
| // | ||
| // Author: | ||
| // Eric Maupin <ermau@xamarin.com> | ||
| // | ||
| // Copyright (c) 2012 Xamarin, Inc. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| // THE SOFTWARE. | ||
|
|
||
| using System.Linq; | ||
| using System.Windows; | ||
| using System.Windows.Controls; | ||
| using Xwt.Backends; | ||
| using Xwt.WPFBackend.Utilities; | ||
|
|
||
| namespace Xwt.WPFBackend | ||
| { | ||
| public class ListBoxBackend | ||
| : WidgetBackend, IListBoxBackend | ||
| { | ||
| public ListBoxBackend() | ||
| { | ||
| ListBox = new ExListBox(); | ||
| } | ||
|
|
||
| public ScrollPolicy VerticalScrollPolicy | ||
| { | ||
| get { return ScrollViewer.GetVerticalScrollBarVisibility (ListBox).ToXwtScrollPolicy(); } | ||
| set { ScrollViewer.SetVerticalScrollBarVisibility (ListBox, value.ToWpfScrollBarVisibility ()); } | ||
| } | ||
|
|
||
| public ScrollPolicy HorizontalScrollPolicy | ||
| { | ||
| get { return ScrollViewer.GetHorizontalScrollBarVisibility (ListBox).ToXwtScrollPolicy (); } | ||
| set { ScrollViewer.SetVerticalScrollBarVisibility (ListBox, value.ToWpfScrollBarVisibility ()); } | ||
| } | ||
|
|
||
| public void SetViews (CellViewCollection views) | ||
| { | ||
| ListBox.ItemTemplate = new DataTemplate { VisualTree = CellUtil.CreateBoundColumnTemplate (views) }; | ||
| } | ||
|
|
||
| public void SetSource (IListDataSource source, IBackend sourceBackend) | ||
| { | ||
| var dataSource = sourceBackend as ListDataSource; | ||
| if (dataSource != null) | ||
| ListBox.ItemsSource = dataSource; | ||
| else | ||
| ListBox.ItemsSource = new ListSourceNotifyWrapper (source); | ||
| } | ||
|
|
||
| public void SetSelectionMode (SelectionMode mode) | ||
| { | ||
| switch (mode) { | ||
| case SelectionMode.Single: | ||
| ListBox.SelectionMode = System.Windows.Controls.SelectionMode.Single; | ||
| break; | ||
| case SelectionMode.Multiple: | ||
| ListBox.SelectionMode = System.Windows.Controls.SelectionMode.Extended; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| public void SelectAll () | ||
| { | ||
| ListBox.SelectAll(); | ||
| } | ||
|
|
||
| public void UnselectAll () | ||
| { | ||
| ListBox.UnselectAll(); | ||
| } | ||
|
|
||
| public int[] SelectedRows | ||
| { | ||
| get { return ListBox.SelectedIndexes.ToArray (); } | ||
| } | ||
|
|
||
| public void SelectRow (int pos) | ||
| { | ||
| ListBox.SelectedIndexes.Add (pos); | ||
| } | ||
|
|
||
| public void UnselectRow (int pos) | ||
| { | ||
| ListBox.SelectedIndexes.Remove (pos); | ||
| } | ||
|
|
||
| protected ExListBox ListBox { | ||
| get { return (ExListBox) Widget; } | ||
| set { Widget = value; } | ||
| } | ||
| } | ||
| } |
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