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-rw-r--r--Xamarin.Forms.ControlGallery.MacOS/CustomRenderers.cs346
1 files changed, 346 insertions, 0 deletions
diff --git a/Xamarin.Forms.ControlGallery.MacOS/CustomRenderers.cs b/Xamarin.Forms.ControlGallery.MacOS/CustomRenderers.cs
new file mode 100644
index 00000000..ae058896
--- /dev/null
+++ b/Xamarin.Forms.ControlGallery.MacOS/CustomRenderers.cs
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+using System;
+using System.Collections.Generic;
+using AppKit;
+using CoreGraphics;
+using Foundation;
+using Xamarin.Forms;
+using Xamarin.Forms.ControlGallery.MacOS;
+using Xamarin.Forms.Controls.Issues;
+using Xamarin.Forms.Platform.MacOS;
+
+[assembly: ExportRenderer(typeof(NativeCell), typeof(NativeMacCellRenderer))]
+[assembly: ExportRenderer(typeof(NativeListView2), typeof(NativeMacOSListViewRenderer))]
+[assembly: ExportRenderer(typeof(NativeListView), typeof(NativeListViewRenderer))]
+namespace Xamarin.Forms.ControlGallery.MacOS
+{
+ public class NativeMacOSListViewRenderer : ViewRenderer<NativeListView2, NSView>
+ {
+ NSTableView _nsTableView;
+ public NativeMacOSListViewRenderer()
+ {
+ }
+
+ protected override void OnElementChanged(ElementChangedEventArgs<NativeListView2> e)
+ {
+ base.OnElementChanged(e);
+
+ if (Control == null)
+ {
+ var scroller = new NSScrollView
+ {
+ AutoresizingMask = NSViewResizingMask.HeightSizable | NSViewResizingMask.WidthSizable,
+ DocumentView = _nsTableView = new NSTableView().AsListViewLook()
+ };
+
+ _nsTableView.RowHeight = 60;
+ SetNativeControl(scroller);
+ }
+
+ if (e.OldElement != null)
+ {
+ // unsubscribe
+ }
+
+ if (e.NewElement != null)
+ {
+ // subscribe
+
+ var s = new NativeiOSListViewSource(e.NewElement, _nsTableView);
+ _nsTableView.Source = s;
+ }
+ }
+
+ protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
+ {
+ base.OnElementPropertyChanged(sender, e);
+
+ if (e.PropertyName == NativeListView.ItemsProperty.PropertyName)
+ {
+ // update the Items list in the UITableViewSource
+ var s = new NativeiOSListViewSource(Element, _nsTableView);
+ _nsTableView.Source = s;
+ }
+ }
+
+ public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
+ {
+ return Control.GetSizeRequest(widthConstraint, heightConstraint, 44, 44);
+ }
+ }
+
+ public class NativeListViewRenderer : ViewRenderer<NativeListView, NSView>
+ {
+ public NativeListViewRenderer()
+ {
+ }
+ NSTableView table;
+ protected override void OnElementChanged(ElementChangedEventArgs<NativeListView> e)
+ {
+ base.OnElementChanged(e);
+
+ if (Control == null)
+ {
+ var scroller = new NSScrollView
+ {
+ AutoresizingMask = NSViewResizingMask.HeightSizable | NSViewResizingMask.WidthSizable,
+ DocumentView = table = new NSTableView().AsListViewLook()
+ };
+
+ table.RowHeight = 60;
+
+ SetNativeControl(scroller);
+ }
+
+ if (e.OldElement != null)
+ {
+ // unsubscribe
+ }
+
+ if (e.NewElement != null)
+ {
+ // subscribe
+
+ var s = new NativeListViewSource(e.NewElement, table);
+ table.Source = s;
+ }
+ }
+
+ protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
+ {
+ base.OnElementPropertyChanged(sender, e);
+
+ if (e.PropertyName == NativeListView.ItemsProperty.PropertyName)
+ {
+ // update the Items list in the UITableViewSource
+ var s = new NativeListViewSource(Element, table);
+ table.Source = s;
+ }
+ }
+
+ public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
+ {
+ return Control.GetSizeRequest(widthConstraint, heightConstraint, 44, 44);
+ }
+ }
+
+ public class NativeiOSListViewSource : NSTableViewSource
+ {
+ IList<DataSource> _tableItems;
+ NativeListView2 _listView;
+ readonly NSTableView _nsTableView;
+ readonly NSString _cellIdentifier = new NSString("TableCell");
+
+ public IEnumerable<DataSource> Items
+ {
+ set { _tableItems = new List<DataSource>(value); }
+ }
+
+ public NativeiOSListViewSource(NativeListView2 view, NSTableView nsTableView)
+ {
+ _tableItems = new List<DataSource>(view.Items);
+ _listView = view;
+ _nsTableView = nsTableView;
+ }
+
+ public override nint GetRowCount(NSTableView tableView)
+ {
+ return _tableItems.Count;
+ }
+
+ public override void SelectionDidChange(NSNotification notification)
+ {
+ var selectedRow = (int)_nsTableView.SelectedRow;
+ if (selectedRow == -1)
+ return;
+ _listView.NotifyItemSelected(_tableItems[selectedRow]);
+ Console.WriteLine("Row " + selectedRow.ToString() + " selected");
+ _nsTableView.DeselectRow(selectedRow);
+ }
+
+ public override NSView GetViewForItem(NSTableView tableView, NSTableColumn tableColumn, nint row)
+ {
+ NativeMacOsCell cell = tableView.MakeView(_cellIdentifier, tableView) as NativeMacOsCell;
+
+ if (cell == null)
+ {
+ cell = new NativeMacOsCell(_cellIdentifier);
+ }
+ int rowNumber = (int)row;
+ if (string.IsNullOrWhiteSpace(_tableItems[rowNumber].ImageFilename))
+ {
+ cell.UpdateCell(_tableItems[rowNumber].Name
+ , _tableItems[rowNumber].Category
+ , null);
+ }
+ else
+ {
+ cell.UpdateCell(_tableItems[rowNumber].Name
+ , _tableItems[rowNumber].Category
+ , new NSImage("Images/" + _tableItems[rowNumber].ImageFilename + ".jpg"));
+ }
+
+ return cell;
+ }
+ }
+
+ public class NativeListViewSource : NSTableViewSource
+ {
+ // declare vars
+ IList<string> _tableItems;
+ string _cellIdentifier = "TableCell";
+ NativeListView _listView;
+ readonly NSTableView _nsTableView;
+
+ public IEnumerable<string> Items
+ {
+ set
+ {
+ _tableItems = new List<string>(value);
+ }
+ }
+
+ public NativeListViewSource(NativeListView view, NSTableView nsTableView)
+ {
+ _tableItems = new List<string>(view.Items);
+ _listView = view;
+ _nsTableView = nsTableView;
+ }
+
+ public override nint GetRowCount(NSTableView tableView)
+ {
+ return _tableItems.Count;
+ }
+
+ public override void SelectionDidChange(NSNotification notification)
+ {
+ var selectedRow = (int)_nsTableView.SelectedRow;
+ if (selectedRow == -1)
+ return;
+ _listView.NotifyItemSelected(_tableItems[selectedRow]);
+ Console.WriteLine("Row " + selectedRow.ToString() + " selected");
+ _nsTableView.DeselectRow(selectedRow);
+ }
+
+ public override NSView GetViewForItem(NSTableView tableView, NSTableColumn tableColumn, nint row)
+ {
+ var cell = tableView.MakeView(_cellIdentifier, tableView);
+
+ if (cell == null)
+ {
+ cell = new NSView(new CGRect(0, 0, tableView.Frame.Width, tableView.RowHeight));
+ var textLabel = new NSTextField(new CGRect(1, 1, tableView.Frame.Width, tableView.RowHeight - 10));
+ cell.AddSubview(textLabel);
+ }
+ var label = cell.Subviews[0] as NSTextField;
+ label.StringValue = _tableItems[(int)row];
+ return cell;
+ }
+ }
+
+ public class NativeMacCellRenderer : ViewCellRenderer
+ {
+ static NSString s_rid = new NSString("NativeCell");
+
+ public NativeMacCellRenderer()
+ {
+ }
+
+ public override NSView GetCell(Cell item, NSView reusableView, NSTableView tv)
+ {
+ var x = (NativeCell)item;
+ Console.WriteLine(x);
+
+ NativeMacOsCell c = reusableView as NativeMacOsCell;
+
+ if (c == null)
+ {
+ c = new NativeMacOsCell(s_rid);
+ }
+
+ NSImage i = null;
+ if (!string.IsNullOrWhiteSpace(x.ImageFilename))
+ {
+ i = new NSImage("Images/" + x.ImageFilename + ".jpg");
+ }
+
+ base.WireUpForceUpdateSizeRequested(item, c, tv);
+
+ c.UpdateCell(x.Name, x.Category, i);
+
+ return c;
+ }
+ }
+
+ public class NativeMacOsCell : NSView
+ {
+ NSTextField _headingLabel;
+ NSTextField _subheadingLabel;
+ NSImageView _imageView;
+
+ public NativeMacOsCell() : this(new NSString("NativeMacOsCell"))
+ {
+ }
+ public NativeMacOsCell(NSString cellId)
+ {
+ Identifier = cellId;
+ WantsLayer = true;
+ Layer.BackgroundColor = NSColor.FromRgb(218, 255, 127).CGColor;
+
+ _imageView = new NSImageView();
+
+ _headingLabel = new NSTextField()
+ {
+ Font = NSFont.FromFontName("Cochin-BoldItalic", 22f),
+ TextColor = NSColor.FromRgb(127, 51, 0),
+ BackgroundColor = NSColor.Clear
+ };
+
+ _subheadingLabel = new NSTextField()
+ {
+ Font = NSFont.FromFontName("AmericanTypewriter", 12f),
+ TextColor = NSColor.FromRgb(38, 127, 0),
+ Alignment = NSTextAlignment.Center,
+ BackgroundColor = NSColor.Clear
+ };
+
+ AddSubview(_headingLabel);
+ AddSubview(_subheadingLabel);
+ AddSubview(_imageView);
+ }
+
+ public void UpdateCell(string caption, string subtitle, NSImage image)
+ {
+ _imageView.Image = image;
+ _headingLabel.StringValue = caption;
+ _subheadingLabel.StringValue = subtitle;
+ }
+
+ public override void Layout()
+ {
+ base.Layout();
+
+ _imageView.Frame = new CGRect(Bounds.Width - 63, 5, 33, 33);
+ _headingLabel.Frame = new CGRect(5, 4, Bounds.Width - 63, 25);
+ _subheadingLabel.Frame = new CGRect(100, 18, 100, 20);
+ }
+ }
+
+ public static class NSTableViewExtensions
+ {
+ public static NSTableView AsListViewLook(this NSTableView self)
+ {
+ self.SelectionHighlightStyle = NSTableViewSelectionHighlightStyle.SourceList;
+
+ self.AllowsColumnReordering = false;
+ self.AllowsColumnResizing = false;
+ self.AllowsColumnSelection = false;
+
+ //this is needed .. can we go around it ?
+ self.AddColumn(new NSTableColumn("1"));
+ //this line hides the header by default
+ self.HeaderView = null;
+ return self;
+ }
+ }
+
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-05 14:13:15 +0000