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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 ();
XEditor = new NumericSpinEditor<T> (hostResources) {
BackgroundColor = NSColor.Clear,
Value = 0.0f
};
XEditor.ValueChanged += OnInputUpdated;
YLabel = new UnfocusableTextField ();
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.Width, NSLayoutRelation.Equal, 1f, 90f),
NSLayoutConstraint.Create (XEditor, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, DefaultControlHeight),
NSLayoutConstraint.Create (YEditor, NSLayoutAttribute.Width, NSLayoutRelation.Equal, 1f, 90f),
NSLayoutConstraint.Create (YEditor, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, DefaultControlHeight),
});
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.Editable = ViewModel.Property.CanWrite;
YEditor.Editable = 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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