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using System.ComponentModel;
using AppKit;
namespace Xamarin.Forms.Platform.MacOS
{
public class TextCellRenderer : CellRenderer
{
static readonly Color s_defaultDetailColor = new Color(.32, .4, .57);
static readonly Color s_defaultTextColor = Color.Black;
public override NSView GetCell(Cell item, NSView reusableView, NSTableView tv)
{
var textCell = (TextCell)item;
var tvc = reusableView as CellNSView ?? new CellNSView(NSTableViewCellStyle.Subtitle);
if (tvc.Cell != null)
tvc.Cell.PropertyChanged -= tvc.HandlePropertyChanged;
tvc.Cell = textCell;
textCell.PropertyChanged += tvc.HandlePropertyChanged;
tvc.PropertyChanged = HandlePropertyChanged;
tvc.TextLabel.StringValue = textCell.Text ?? "";
tvc.DetailTextLabel.StringValue = textCell.Detail ?? "";
tvc.TextLabel.TextColor = textCell.TextColor.ToNSColor(s_defaultTextColor);
tvc.DetailTextLabel.TextColor = textCell.DetailColor.ToNSColor(s_defaultDetailColor);
WireUpForceUpdateSizeRequested(item, tvc, tv);
UpdateIsEnabled(tvc, textCell);
UpdateBackground(tvc, item);
return tvc;
}
protected virtual void HandlePropertyChanged(object sender, PropertyChangedEventArgs args)
{
var tvc = (CellNSView)sender;
var textCell = (TextCell)tvc.Cell;
if (args.PropertyName == TextCell.TextProperty.PropertyName)
{
tvc.TextLabel.StringValue = textCell.Text ?? "";
tvc.TextLabel.SizeToFit();
}
else if (args.PropertyName == TextCell.DetailProperty.PropertyName)
{
tvc.DetailTextLabel.StringValue = textCell.Detail ?? "";
tvc.DetailTextLabel.SizeToFit();
}
else if (args.PropertyName == TextCell.TextColorProperty.PropertyName)
tvc.TextLabel.TextColor = textCell.TextColor.ToNSColor(s_defaultTextColor);
else if (args.PropertyName == TextCell.DetailColorProperty.PropertyName)
tvc.DetailTextLabel.TextColor = textCell.DetailColor.ToNSColor(s_defaultTextColor);
else if (args.PropertyName == Cell.IsEnabledProperty.PropertyName)
UpdateIsEnabled(tvc, textCell);
}
static void UpdateIsEnabled(CellNSView cell, TextCell entryCell)
{
cell.TextLabel.Enabled = entryCell.IsEnabled;
cell.DetailTextLabel.Enabled = entryCell.IsEnabled;
}
}
}
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