protected ListBox(Generator generator, Type type, bool initialize = true)
: base(generator, type, initialize)
{
ImageBinding = new ImageListItemImageBinding();
}
public Item(IIndirectBinding <string> binding, object value)
{
Binding = binding;
Value = value;
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ListBox"/> class.
/// </summary>
public ListBox()
{
ImageBinding = new ImageListItemImageBinding();
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ImageTextCell"/> class when binding to properties via reflection.
/// </summary>
/// <param name="imageProperty">Name of the image property in the data item.</param>
/// <param name="textProperty">Name of the text property in the data item.</param>
public ImageTextCell(string imageProperty, string textProperty)
{
ImageBinding = Eto.Forms.Binding.Property <Image>(imageProperty);
TextBinding = Eto.Forms.Binding.Property <string>(textProperty);
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ComboBoxCell"/> class.
/// </summary>
public ComboBoxCell()
{
ComboTextBinding = new ListItemTextBinding();
ComboKeyBinding = new ListItemKeyBinding();
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ImageTextCell"/> class when binding to properties via reflection.
/// </summary>
/// <param name="imageProperty">Name of the image property in the data item.</param>
/// <param name="textProperty">Name of the text property in the data item.</param>
public ImageTextCell(string imageProperty, string textProperty)
{
ImageBinding = new PropertyBinding <Image>(imageProperty);
TextBinding = new PropertyBinding <string>(textProperty);
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ImageTextCell"/> class when binding to an indexed-based data item.
/// </summary>
/// <param name="imageColumn">Index of the image column in the data item.</param>
/// <param name="textColumn">Index of the text column in the data item.</param>
public ImageTextCell(int imageColumn, int textColumn)
{
ImageBinding = new ColumnBinding <Image>(imageColumn);
TextBinding = new ColumnBinding <string>(textColumn);
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ListControl"/> class.
/// </summary>
protected ListControl()
{
TextBinding = new ListItemTextBinding();
KeyBinding = new ListItemKeyBinding();
}
protected ListControl(Generator g, Type type, bool initialize = true)
: base(g, type, initialize)
{
TextBinding = new ListItemTextBinding();
KeyBinding = new ListItemKeyBinding();
}
public ComboBoxCell(Generator generator)
: base(generator, typeof(IHandler), true)
{
ComboTextBinding = new ListItemTextBinding();
ComboKeyBinding = new ListItemKeyBinding();
}
public CanvasThumbnailCell(string property)
{
Binding = new PropertyBinding <string>(property);
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ImageTextCell"/> class when binding to properties via reflection.
/// </summary>
/// <param name="imageProperty">Name of the image property in the data item.</param>
/// <param name="textProperty">Name of the text property in the data item.</param>
public ImageTextCell(string imageProperty, string textProperty)
{
ImageBinding = new PropertyBinding<Image>(imageProperty);
TextBinding = new PropertyBinding<string>(textProperty);
}
/// <summary>
/// Initializes a new instance of the <see cref="Eto.Forms.ImageTextCell"/> class when binding to an indexed-based data item.
/// </summary>
/// <param name="imageColumn">Index of the image column in the data item.</param>
/// <param name="textColumn">Index of the text column in the data item.</param>
public ImageTextCell(int imageColumn, int textColumn)
{
ImageBinding = new ColumnBinding<Image>(imageColumn);
TextBinding = new ColumnBinding<string>(textColumn);
}
public static GridColumn AddDropDownColumn <T>(this GridView view, Func <T, object> value, IEnumerable <object> dataStore, IIndirectBinding <string> textBinding, string header, bool editable = false)
{
var internalBinding = Binding.Delegate(value);
Cell cell;
// hack for eto/gtk not supporting ItemTextBinding on ComboBoxCells
if (Platform.Instance.IsGtk)
{
const char zws = '\u200B'; // This is a zero width (ZWS) space Unicode character.
var lDataStore = dataStore.ToList();
var tDataStore = lDataStore.Select(i =>
string.Empty.PadLeft(lDataStore.IndexOf(i) + 1, zws) // Pad with index+1 ZWS chars to be able to check later. If no ZWS is there, this did not work.
+ textBinding.GetValue(i))
.ToList();
var hasNonUnique = tDataStore.Distinct().Count() != tDataStore.Count; // Check if textBinding produced the same string for more than one data item.
var binding = Binding.Delegate <T, string>(
(T s) => textBinding.GetValue(internalBinding.GetValue(s)),
(T t, string s) =>
{
int idx = s.Split(zws).Length - 2;
if (idx == -1)
{
idx = tDataStore.IndexOf(s); // Fallback if ZWS is not supported.
if (hasNonUnique)
{
throw new Exception("ComboBoxCell ComboTextBinding Polyfill: Duplicate text entry encountered and Zero-Width-Space Hack not supported by platform!");
}
}
internalBinding.SetValue(t, lDataStore[idx]);
}).Cast <object>();
cell = new ComboBoxCell {
Binding = binding, DataStore = tDataStore
};
}
else
{
cell = new ComboBoxCell {
Binding = internalBinding, DataStore = dataStore, ComboTextBinding = textBinding
}
};
return(view.AddColumn(cell, header, editable));
}
