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path: root/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs
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-rw-r--r--Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs68
1 files changed, 68 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs b/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs
new file mode 100644
index 0000000..54e540a
--- /dev/null
+++ b/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs
@@ -0,0 +1,68 @@
+´╗┐using System;
+using AppKit;
+using CoreGraphics;
+
+namespace Xamarin.Forms.Platform.MacOS
+{
+ public class CellRenderer : IRegisterable
+ {
+ static readonly BindableProperty s_realCellProperty = BindableProperty.CreateAttached("RealCell", typeof(NSView),
+ typeof(Cell), null);
+
+ EventHandler _onForceUpdateSizeRequested;
+
+ public virtual NSView GetCell(Cell item, NSView reusableView, NSTableView tv)
+ {
+ var tvc = reusableView as CellNSView ?? new CellNSView(NSTableViewCellStyle.Default);
+
+ tvc.Cell = item;
+
+ WireUpForceUpdateSizeRequested(item, tvc, tv);
+
+ tvc.TextLabel.StringValue = item.ToString();
+
+ UpdateBackground(tvc, item);
+
+ return tvc;
+ }
+
+ protected void UpdateBackground(NSView tableViewCell, Cell cell)
+ {
+ tableViewCell.WantsLayer = true;
+ var bgColor = NSColor.White;
+ var element = cell.RealParent as VisualElement;
+ if (element != null)
+ bgColor = element.BackgroundColor == Color.Default ? bgColor : element.BackgroundColor.ToNSColor();
+
+ UpdateBackgroundChild(cell, bgColor);
+
+ tableViewCell.Layer.BackgroundColor = bgColor.CGColor;
+ }
+
+ protected void WireUpForceUpdateSizeRequested(ICellController cell, NSView nativeCell, NSTableView tableView)
+ {
+ cell.ForceUpdateSizeRequested -= _onForceUpdateSizeRequested;
+
+ _onForceUpdateSizeRequested = (sender, e) =>
+ {
+ //TODO: Implement ForceUpdateSize
+ };
+
+ cell.ForceUpdateSizeRequested += _onForceUpdateSizeRequested;
+ }
+
+ internal virtual void UpdateBackgroundChild(Cell cell, NSColor backgroundColor)
+ {
+ }
+
+ internal static NSView GetRealCell(BindableObject cell)
+ {
+ return (NSView)cell.GetValue(s_realCellProperty);
+ }
+
+ internal static void SetRealCell(BindableObject cell, NSView renderer)
+ {
+ cell.SetValue(s_realCellProperty, renderer);
+ }
+ }
+} \ No newline at end of file