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using System;
using System.Collections;
using System.Diagnostics;
using AppKit;
using Xamarin.PropertyEditing.Mac.Resources;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
internal abstract class BasePointEditorControl<T> : PropertyEditorControl<PropertyViewModel<T>>
{
internal UnfocusableTextField XLabel { get; set; }
internal NumericSpinEditor<T> XEditor { get; set; }
internal UnfocusableTextField YLabel { get; set; }
internal NumericSpinEditor<T> YEditor { get; set; }
public override NSView FirstKeyView => XEditor;
public override NSView LastKeyView => YEditor.DecrementButton;
protected BasePointEditorControl (IHostResourceProvider hostResources)
: base (hostResources)
{
XLabel = new UnfocusableTextField {
Font = NSFont.FromFontName (DefaultFontName, DefaultDescriptionLabelFontSize),
TranslatesAutoresizingMaskIntoConstraints = false,
};
XEditor = new NumericSpinEditor<T> (hostResources) {
BackgroundColor = NSColor.Clear,
Value = 0.0f
};
XEditor.ValueChanged += OnInputUpdated;
YLabel = new UnfocusableTextField {
Font = NSFont.FromFontName (DefaultFontName, DefaultDescriptionLabelFontSize),
TranslatesAutoresizingMaskIntoConstraints = false,
};
YEditor = new NumericSpinEditor<T> (hostResources) {
BackgroundColor = NSColor.Clear,
Value = 0.0f
};
YEditor.ValueChanged += OnInputUpdated;
AddSubview (XLabel);
AddSubview (XEditor);
AddSubview (YLabel);
AddSubview (YEditor);
this.AddConstraints (new[] {
NSLayoutConstraint.Create (XEditor, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1f, 0f),
NSLayoutConstraint.Create (XEditor, NSLayoutAttribute.Left, NSLayoutRelation.Equal, this, NSLayoutAttribute.Left, 1f, 0f),
NSLayoutConstraint.Create (XEditor, NSLayoutAttribute.Right, NSLayoutRelation.Equal, YEditor, NSLayoutAttribute.Left, 1f, -10f),
NSLayoutConstraint.Create (XEditor, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, DefaultControlHeight),
NSLayoutConstraint.Create (XLabel, NSLayoutAttribute.Top, NSLayoutRelation.Equal, XEditor, NSLayoutAttribute.Bottom, 1f, -4f),
NSLayoutConstraint.Create (XLabel, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, DefaultControlHeight),
NSLayoutConstraint.Create (YEditor, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1f, 0f),
NSLayoutConstraint.Create (YEditor, NSLayoutAttribute.Right, NSLayoutRelation.Equal, this, NSLayoutAttribute.Right, 1f, -32f),
NSLayoutConstraint.Create (YEditor, NSLayoutAttribute.Width, NSLayoutRelation.Equal, XEditor, NSLayoutAttribute.Width, 1f, 0f),
NSLayoutConstraint.Create (YEditor, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, DefaultControlHeight),
NSLayoutConstraint.Create (YLabel, NSLayoutAttribute.Top, NSLayoutRelation.Equal, XLabel, NSLayoutAttribute.Top, 1f, 0f),
NSLayoutConstraint.Create (YLabel, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, DefaultControlHeight),
NSLayoutConstraint.Create (XLabel, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, XEditor.Subviews[0], NSLayoutAttribute.CenterX, 1f, 0),
NSLayoutConstraint.Create (YLabel, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, YEditor.Subviews[0], NSLayoutAttribute.CenterX, 1f, 0),
});
ViewDidChangeEffectiveAppearance ();
}
public override void ViewDidChangeEffectiveAppearance ()
{
XLabel.TextColor = HostResources.GetNamedColor (NamedResources.DescriptionLabelColor);
YLabel.TextColor = HostResources.GetNamedColor (NamedResources.DescriptionLabelColor);
}
protected override void HandleErrorsChanged (object sender, System.ComponentModel.DataErrorsChangedEventArgs e)
{
UpdateErrorsDisplayed (ViewModel.GetErrors (ViewModel.Property.Name));
}
protected override void UpdateErrorsDisplayed (IEnumerable errors)
{
if (ViewModel.HasErrors) {
SetErrors (errors);
} else {
SetErrors (null);
SetEnabled ();
}
}
protected override void SetEnabled ()
{
XEditor.Enabled = ViewModel.Property.CanWrite;
YEditor.Enabled = ViewModel.Property.CanWrite;
}
protected override void UpdateAccessibilityValues ()
{
XEditor.AccessibilityEnabled = XEditor.Enabled;
XEditor.AccessibilityTitle = string.Format (LocalizationResources.AccessibilityXEditor, ViewModel.Property.Name);
YEditor.AccessibilityEnabled = YEditor.Enabled;
YEditor.AccessibilityTitle = string.Format (LocalizationResources.AccessibilityYEditor, ViewModel.Property.Name);
}
protected virtual void OnInputUpdated (object sender, EventArgs e)
{
ViewModel.Value = (T)Activator.CreateInstance (typeof (T), XEditor.Value, YEditor.Value);
}
}
}
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