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author | Jason Smith <jason.smith@xamarin.com> | 2016-03-22 13:02:25 -0700 |
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committer | Jason Smith <jason.smith@xamarin.com> | 2016-03-22 16:13:41 -0700 |
commit | 17fdde66d94155fc62a034fa6658995bef6fd6e5 (patch) | |
tree | b5e5073a2a7b15cdbe826faa5c763e270a505729 /Xamarin.Forms.ControlGallery.Windows/MainPage.xaml.cs | |
download | xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.tar.gz xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.tar.bz2 xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.zip |
Initial import
Diffstat (limited to 'Xamarin.Forms.ControlGallery.Windows/MainPage.xaml.cs')
-rw-r--r-- | Xamarin.Forms.ControlGallery.Windows/MainPage.xaml.cs | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/Xamarin.Forms.ControlGallery.Windows/MainPage.xaml.cs b/Xamarin.Forms.ControlGallery.Windows/MainPage.xaml.cs new file mode 100644 index 00000000..d02dda0e --- /dev/null +++ b/Xamarin.Forms.ControlGallery.Windows/MainPage.xaml.cs @@ -0,0 +1,100 @@ +using System; +using Windows.Foundation; +using Windows.Graphics.Display; +using Windows.UI.Xaml; +using Windows.UI.Xaml.Controls; +using Windows.UI.Xaml.Media; +using Xamarin.Forms.Controls; +using Xamarin.Forms.Platform.WinRT; + +namespace Xamarin.Forms.ControlGallery.Windows +{ + public sealed partial class MainPage + { + public MainPage () + { + InitializeComponent (); + + var app = new Controls.App (); + + var mdp = app.MainPage as MasterDetailPage; + + var detail = mdp?.Detail as NavigationPage; + if (detail != null) { + detail.Pushed += (sender, args) => { + var nncgPage = args.Page as NestedNativeControlGalleryPage; + + if (nncgPage != null) { + AddNativeControls (nncgPage); + } + }; + } + + LoadApplication (app); + } + + static void AddNativeControls (NestedNativeControlGalleryPage page) + { + if (page.NativeControlsAdded) { + return; + } + + StackLayout sl = page.Layout; + + // Create and add a native TextBlock + var originalText = "I am a native TextBlock"; + var textBlock = new TextBlock { + Text = originalText, + FontSize = 14, + FontFamily = new FontFamily ("HelveticaNeue") + }; + + sl?.Children.Add (textBlock); + + // Create and add a native Button + var button = new global::Windows.UI.Xaml.Controls.Button { Content = "Click to toggle font size", Height = 80 }; + button.Click += (sender, args) => { textBlock.FontSize = textBlock.FontSize == 14 ? 24 : 14; }; + + sl?.Children.Add (button.ToView ()); + + // Create a control which we know doesn't behave correctly with regard to measurement + var difficultControl = new BrokenNativeControl { + Text = "Not Sized/Arranged Properly" + }; + + var difficultControl2 = new BrokenNativeControl { + Text = "Fixed" + }; + + // Add the misbehaving controls, one with a custom delegate for ArrangeOverrideDelegate + sl?.Children.Add (difficultControl); + sl?.Children.Add (difficultControl2, + arrangeOverrideDelegate: (renderer, finalSize) => { + if (finalSize.Width <= 0 || double.IsInfinity (finalSize.Width)) { + return null; + } + + FrameworkElement frameworkElement = renderer.Control; + + frameworkElement.Measure (finalSize); + + // The broken control tries sizes itself to be the width of the screen + var wrongSize = Window.Current.Bounds.Width * (int)DisplayProperties.ResolutionScale / 100; + + // We can re-center it by offsetting it during the Arrange call + double diff = Math.Abs(finalSize.Width - wrongSize) / -2; + frameworkElement.Arrange (new Rect (diff, 0, finalSize.Width - diff, finalSize.Height)); + + // Arranging the control to the left will make it show up past the edge of the stack layout + // We can fix that by clipping it manually + var clip = new RectangleGeometry { Rect = new Rect (-diff, 0, finalSize.Width, finalSize.Height) }; + frameworkElement.Clip = clip; + + return finalSize; + } + ); + + page.NativeControlsAdded = true; + } + } +}
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