public static double GetOpacity(this View view, ControlState state = ControlState.Default)
{
var opacity = view?.GetEnvironment <double?>(EnvironmentKeys.View.Opacity, state);
//Fall back to the default state before using the default color
opacity ??= view?.GetEnvironment <double?>(EnvironmentKeys.View.Opacity);
return(opacity ?? 1);
}
public static FontAttributes GetFont(this View view, FontAttributes defaultFont)
{
var size = view.GetEnvironment <float?>(EnvironmentKeys.Fonts.Size) ?? defaultFont.Size;
var name = view.GetEnvironment <string>(EnvironmentKeys.Fonts.Family) ?? defaultFont.Family;
var weight = view.GetEnvironment <Weight?>(EnvironmentKeys.Fonts.Weight) ?? defaultFont.Weight;
var italic = view.GetEnvironment <bool?>(EnvironmentKeys.Fonts.Italic) ?? defaultFont.Italic;
return(new FontAttributes
{
Size = size,
Family = name,
Italic = italic,
Weight = weight,
});
}
public static LayoutAlignment GetVerticalLayoutAlignment(this View view, ContainerView container, LayoutAlignment defaultSizing = LayoutAlignment.Start)
{
var sizing = view.GetEnvironment <LayoutAlignment?>(view, EnvironmentKeys.Layout.VerticalLayoutAlignment);
if (sizing != null)
{
return((LayoutAlignment)sizing);
}
if (container != null)
{
sizing = view.GetEnvironment <LayoutAlignment?>(view, $"{container.GetType().Name}.{EnvironmentKeys.Layout.VerticalLayoutAlignment}");
}
return(sizing ?? defaultSizing);
}
public static Sizing GetVerticalSizing(this View view, ContainerView container, Sizing defaultSizing = Sizing.Fit)
{
var sizing = view.GetEnvironment <Sizing?>(view, EnvironmentKeys.Layout.VerticalSizing);
if (sizing != null)
{
return((Sizing)sizing);
}
if (container != null)
{
sizing = view.GetEnvironment <Sizing?>(view, $"{container.GetType().Name}.{EnvironmentKeys.Layout.VerticalSizing}");
}
return(sizing ?? defaultSizing);
}
public static string GetTitle(this View view)
{
var title = view?.GetEnvironment <string>(EnvironmentKeys.View.Title);
title ??= view?.BuiltView?.GetEnvironment <string>(EnvironmentKeys.View.Title, true) ?? "";
return(title);
}
public static Font GetFont(this View view, Font?defaultFont)
{
Font font = Font.Default;
var size = view.GetEnvironment <double?>(EnvironmentKeys.Fonts.Size) ?? defaultFont?.Size ?? font.Size;
var name = view.GetEnvironment <string>(EnvironmentKeys.Fonts.Family) ?? defaultFont?.Family ?? font.Family;
var weight = view.GetEnvironment <FontWeight?>(EnvironmentKeys.Fonts.Weight) ?? defaultFont?.Weight ?? Microsoft.Maui.FontWeight.Regular;
var slant = view.GetEnvironment <FontSlant?>(EnvironmentKeys.Fonts.Slant) ?? Microsoft.Maui.FontSlant.Default;
if (!string.IsNullOrWhiteSpace(name))
{
return(Font.OfSize(name, size, weight, slant));
}
//else if (size > 0)
return(Font.SystemFontOfSize(size, weight, slant));
//return font;
}
public static Paint GetBackground(this View view, Paint defaultColor = null, ControlState state = ControlState.Default)
{
var color = view?.GetEnvironment <object>(EnvironmentKeys.Colors.Background, state);
return(color.ConvertToPaint() ?? defaultColor);
}
public static View GetOverlay(this View view)
{
return(view.GetEnvironment <View>(EnvironmentKeys.View.Overlay));
}
public static TextAlignment?GetVerticalTextAlignment(this View view, TextAlignment?defaultValue = null)
{
var value = view.GetEnvironment <TextAlignment?>(view, EnvironmentKeys.Text.VerticalAlignment);
return(value ?? defaultValue);
}
public static Color GetBackgroundColor(this View view, Color defaultColor = null, ControlState state = ControlState.Default)
{
var color = view?.GetEnvironment <Color>(EnvironmentKeys.Colors.BackgroundColor, state);
return(color ?? defaultColor);
}
public static Shape GetClipShape(this View view, Shape defaultShape = null, Type type = null)
{
var shape = view.GetEnvironment <Shape>(type, EnvironmentKeys.View.ClipShape);
return(shape ?? defaultShape);
}
public static Shape GetOverlay(this View view)
{
return(view.GetEnvironment <Shape>(EnvironmentKeys.View.Overlay));
}
public static bool GetIgnoreSafeArea(this View view, bool defaultValue) => (bool?)view.GetEnvironment(view, EnvironmentKeys.Layout.IgnoreSafeArea, false) ?? defaultValue;
public static Thickness GetPadding(this View view, Thickness?defaultValue = null)
{
var margin = view.GetEnvironment <Thickness?>(view, EnvironmentKeys.Layout.Padding);
return(margin ?? defaultValue ?? Thickness.Zero);
}
public static Thickness GetMargin(this View view, Thickness?defaultValue = null)
{
var margin = view.GetEnvironment <Thickness?>(view, EnvironmentKeys.Layout.Margin);
return(margin ?? defaultValue ?? Thickness.Empty);
}
public static Sizing GetVerticalSizing(this View view, Sizing defaultSizing = Sizing.Fit)
{
var sizing = view.GetEnvironment <Sizing?>(view, EnvironmentKeys.Layout.VerticalSizing);
return(sizing ?? defaultSizing);
}
public static Shadow GetShadow(this View view, Shadow defaultShadow = null, Type type = null)
{
var shadow = view.GetEnvironment <Shadow>(type, EnvironmentKeys.View.Shadow);
return(shadow ?? defaultShadow);
}
public static FrameConstraints GetFrameConstraints(this View view, FrameConstraints defaultContraints = null)
{
var constraints = view.GetEnvironment <FrameConstraints>(view, EnvironmentKeys.Layout.FrameConstraints);
return(constraints ?? defaultContraints);
}
public static Color GetNavigationTextColor(this View view, Color defaultColor = null)
{
var color = view.GetEnvironment <Color>(EnvironmentKeys.Navigation.TextColor);
return(color ?? defaultColor);
}
public static Thickness GetPadding(this View view, Thickness?defaultValue = null)
{
var padding = view.GetEnvironment <Thickness?>(view, EnvironmentKeys.Layout.Padding);
return(padding ?? defaultValue ?? Thickness.Empty);
}
public static Animation GetAnimation(this View view)
{
var animation = view.GetEnvironment <Animation>(EnvironmentKeys.Animations.Animation);
return(animation);
}
public static object GetLayoutConstraints(this View view, object defaultValue = null)
{
var constraints = view.GetEnvironment <object>(view, EnvironmentKeys.Layout.Constraints);
return(constraints ?? defaultValue);
}
public static Color GetBackgroundColor(this View view, Color defaultColor = null)
{
var color = view.GetEnvironment <Color>(EnvironmentKeys.Colors.BackgroundColor);
return(color ?? defaultColor);
}
public static string GetAutomationId(this View view) => view.GetEnvironment <string>(view, EnvironmentKeys.View.AutomationId, cascades: false);