void ConstrainSubviewToSuperview(NSView subview, NSView superview)
{
subview.TranslatesAutoresizingMaskIntoConstraints = false;
NSLayoutConstraint[] constraints;
if (ownedConstraints.TryGetValue(superview, out constraints))
{
superview.RemoveConstraints(constraints);
}
ownedConstraints.Add(superview, constraints = new [] {
NSLayoutConstraint.Create(
subview, NSLayoutAttribute.Width,
NSLayoutRelation.Equal,
superview, NSLayoutAttribute.Width,
1,
0),
NSLayoutConstraint.Create(
subview, NSLayoutAttribute.Height,
NSLayoutRelation.Equal,
superview, NSLayoutAttribute.Height,
1,
0)
});
superview.AddConstraints(constraints);
}
public static void SwapSubView(this NSView containerView, NSView targetView)
{
// we could add spacing to this
while (containerView.Subviews.Any())
{
containerView.Subviews[0].RemoveFromSuperview();
}
containerView.RemoveConstraints(containerView.Constraints);
targetView.TranslatesAutoresizingMaskIntoConstraints = false;
containerView.AddSubview(targetView);
NSDictionary views = NSDictionary.FromObjectAndKey(targetView, new NSString("target"));
containerView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"H:|[target]|", NSLayoutFormatOptions.None, null, views));
containerView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"V:|[target]|", NSLayoutFormatOptions.None, null, views));
}
internal static void PackViews(
NSView parent, string[] constraints, NSDictionary views)
{
foreach (NSView view in views.Values)
{
view.TranslatesAutoresizingMaskIntoConstraints = false;
parent.AddSubview(view);
}
parent.AddConstraints(BuildConstraints(constraints, views));
}
internal static void AddControls(NSView parent, string[] constraints, NSDictionary controls)
{
foreach (NSView control in controls.Values)
{
control.TranslatesAutoresizingMaskIntoConstraints = false;
parent.AddSubview(control);
}
parent.AddConstraints(BuildConstraints(constraints, controls));
}
public static void DoMergedConstraints(this NSView view, params object[] constraints)
{
foreach (var o in constraints)
{
var singleConstraint = o as NSLayoutConstraint;
var multipleConstraint = o as NSLayoutConstraint[];
if (singleConstraint != null)
{
view.AddConstraint(singleConstraint);
}
else if (multipleConstraint != null)
{
view.AddConstraints(multipleConstraint);
}
else
{
throw new ArgumentException("Unexpected constraint type: " + o.GetType());
}
}
}
public MainWindow(CGRect contentRect, NSWindowStyle aStyle, NSBackingStore bufferingType, bool deferCreation) : base(contentRect, aStyle, bufferingType, deferCreation)
{
// Define the User Interface of the Window here
Title = "Window From Code";
// Create the content view for the window and make it fill the window
ContentView = new NSView(Frame);
// Add UI Elements to window
ClickMeButton = NSButton.CreateButton("Click Me!", ButtonClicked);
ClickMeButton.TranslatesAutoresizingMaskIntoConstraints = false;
ContentView.AddSubview(ClickMeButton);
ClickMeLabel = NSTextField.CreateLabel("Button has not been clicked yet.");
ClickMeLabel.TranslatesAutoresizingMaskIntoConstraints = false;
ContentView.AddSubview(ClickMeLabel);
// Add constraints to window
ContentView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"V:|-[button]-[label]", NSLayoutFormatOptions.AlignAllLeading,
"button", ClickMeButton, "label", ClickMeLabel));
ContentView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"H:|-[button]", NSLayoutFormatOptions.AlignAllFirstBaseline,
"button", ClickMeButton));
ContentView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"H:|-[label]", NSLayoutFormatOptions.AlignAllFirstBaseline,
"label", ClickMeLabel));
var constraints = NSLayoutConstraint.FromVisualFormat(
"H:[label]-|", NSLayoutFormatOptions.AlignAllFirstBaseline,
"label", ClickMeLabel);
ContentView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"H:[button]-(>=std)-|", NSLayoutFormatOptions.AlignAllFirstBaseline,
"button", ClickMeButton, "std", constraints[0].Constant));
ContentView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"H:[label]-(>=std)-|", NSLayoutFormatOptions.AlignAllFirstBaseline,
"label", ClickMeLabel, "std", constraints[0].Constant));
constraints = NSLayoutConstraint.FromVisualFormat(
"V:[label]-|", NSLayoutFormatOptions.AlignAllLeft,
"label", ClickMeLabel);
ContentView.AddConstraints(NSLayoutConstraint.FromVisualFormat(
"V:[label]-(>=std)-|", NSLayoutFormatOptions.AlignAllFirstBaseline,
"label", ClickMeLabel, "std", constraints[0].Constant));
}
public static void DoConstraints(this NSView view, params NSLayoutConstraint[] constraints)
{
view.AddConstraints(constraints);
}
public MainWindow(CGRect contentRect, NSWindowStyle aStyle, NSBackingStore bufferingType, bool deferCreation) : base(contentRect, aStyle, bufferingType, deferCreation)
{
var windowSize = new CGSize(640, 480);
var windowLocation = new CGPoint(NSScreen.MainScreen.Frame.Width / 2 - windowSize.Width / 2, NSScreen.MainScreen.Frame.Height / 2 - windowSize.Height / 2);
var centerRect = new CGRect(windowLocation, windowSize);
Title = "Programmatic window";
ContentView = new NSView(centerRect);
var title = new NSTextField {
StringValue = "Title your problem",
Editable = true,
UsesSingleLineMode = true,
PlaceholderString = "Title your problem"
};
title.AccessibilityLabel = title.PlaceholderString;
title.TranslatesAutoresizingMaskIntoConstraints = false;
ContentView.AddSubview(title);
// There are three ways to set auto layout constraints programmatically. The first is by setting layout anchors
// https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/AutolayoutPG/ProgrammaticallyCreatingConstraints.html#//apple_ref/doc/uid/TP40010853-CH16-SW5
// Don't forget to set .Active = true on the constraint or it won't show up
title.LeadingAnchor.ConstraintEqualToAnchor(ContentView.LeadingAnchor, PADDING).Active = true;
title.TrailingAnchor.ConstraintEqualToAnchor(ContentView.TrailingAnchor, -PADDING).Active = true;
title.TopAnchor.ConstraintEqualToAnchor(ContentView.TopAnchor, PADDING).Active = true;
var scroll = new NSScrollView(new CGRect(0, 0, ContentView.Frame.Width - PADDING - PADDING, 100));
scroll.BorderType = NSBorderType.BezelBorder;
scroll.HasHorizontalScroller = false;
scroll.HasVerticalScroller = true;
var scrollSize = scroll.ContentSize;
var description = new NSTextView(new CGRect(0, 0, scrollSize.Width, scrollSize.Height));
description.MinSize = new CGSize(0, scrollSize.Height);
description.MaxSize = new CGSize(float.MaxValue, float.MaxValue);
description.Editable = true;
description.Font = title.Font;
description.VerticallyResizable = true;
description.HorizontallyResizable = false;
description.AutoresizingMask = NSViewResizingMask.WidthSizable;
description.TextContainer.Size = new CGSize(scrollSize.Width, float.MaxValue);
description.TextContainer.WidthTracksTextView = true;
scroll.DocumentView = description;
scroll.TranslatesAutoresizingMaskIntoConstraints = false;
ContentView.AddSubview(scroll);
// The second option is to create NSLayoutConstraints
// https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/AutolayoutPG/ProgrammaticallyCreatingConstraints.html#//apple_ref/doc/uid/TP40010853-CH16-SW8
ContentView.AddConstraints(new [] {
NSLayoutConstraint.Create(scroll, NSLayoutAttribute.Leading, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Leading, 1, PADDING),
NSLayoutConstraint.Create(scroll, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Trailing, 1, -PADDING)
});
// Alternatively, you can create the constraints as shown here and set .Active = true, same as with the anchor method above
NSLayoutConstraint.Create(scroll, NSLayoutAttribute.Top, NSLayoutRelation.Equal, title, NSLayoutAttribute.Bottom, 1, PADDING).Active = true;
title.Activated += (sender, e) => MakeFirstResponder(description);
var labelFont = NSFont.LabelFontOfSize(10);
var publicLabel = new NSTextField {
StringValue = "Your title and description will be public",
Editable = false,
Bezeled = false,
DrawsBackground = false,
Selectable = false,
Font = labelFont,
TranslatesAutoresizingMaskIntoConstraints = false
};
ContentView.AddSubview(publicLabel);
// You can also use different types of constraints for the same view
ContentView.AddConstraints(new [] {
NSLayoutConstraint.Create(publicLabel, NSLayoutAttribute.Leading, NSLayoutRelation.GreaterThanOrEqual, ContentView, NSLayoutAttribute.Leading, 1, 40),
NSLayoutConstraint.Create(publicLabel, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Trailing, 1, -PADDING)
});
publicLabel.TopAnchor.ConstraintEqualToAnchor(scroll.BottomAnchor, 5).Active = true;
var email = new NSTextField {
Editable = true,
PlaceholderString = "Optional email address"
};
email.AccessibilityLabel = email.PlaceholderString;
email.TranslatesAutoresizingMaskIntoConstraints = false;
ContentView.AddSubview(email);
ContentView.AddConstraints(new [] {
NSLayoutConstraint.Create(email, NSLayoutAttribute.Top, NSLayoutRelation.Equal, publicLabel, NSLayoutAttribute.Bottom, 1, PADDING)
});
// The third option for setting layout constraints is to use Visual Format Language
// https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/AutolayoutPG/ProgrammaticallyCreatingConstraints.html#//apple_ref/doc/uid/TP40010853-CH16-SW9
string emailFormat = "|-10-[email]-10-|";
var emailViews = NSDictionary.FromObjectAndKey(email, (NSString)"email");
var emailConstraints = NSLayoutConstraint.FromVisualFormat(emailFormat, NSLayoutFormatOptions.None, null, emailViews);
NSLayoutConstraint.ActivateConstraints(emailConstraints);
var sendButton = new NSButton {
Title = "OK"
};
sendButton.Activated += (sender, e) => {
var alert = new NSAlert {
MessageText = "Button pressed"
};
alert.AddButton("Okay");
alert.RunModal();
Dispose();
};
sendButton.TranslatesAutoresizingMaskIntoConstraints = false;
ContentView.AddSubview(sendButton);
ContentView.AddConstraints(new [] {
NSLayoutConstraint.Create(sendButton, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Trailing, 1, -PADDING),
NSLayoutConstraint.Create(sendButton, NSLayoutAttribute.Leading, NSLayoutRelation.GreaterThanOrEqual, ContentView, NSLayoutAttribute.Leading, 1, 40)
});
//To do vertical constraints with visual format language, start the format string with V:"
string sendButtonFormat = "V:[email]-10-[sendButton]-10-|";
var sendButtonViews = NSDictionary.FromObjectsAndKeys(new NSObject [] { email, sendButton }, new NSObject [] { (NSString)"email", (NSString)"sendButton" });
var sendButtonConstraints = NSLayoutConstraint.FromVisualFormat(sendButtonFormat, NSLayoutFormatOptions.None, null, sendButtonViews);
NSLayoutConstraint.ActivateConstraints(sendButtonConstraints);
email.Activated += (sender, e) => {
if (sendButton.Enabled)
{
MakeFirstResponder(sendButton);
}
};
bool hasTitle = false;
bool hasDescription = false;
title.Changed += (sender, e) => {
var titleStr = title.StringValue;
hasTitle = !string.IsNullOrWhiteSpace(titleStr) && titleStr.Length > 5;
sendButton.Enabled = hasTitle && hasDescription;
};
description.TextStorage.DidProcessEditing += (sender, e) => {
hasDescription = description.TextStorage.Length > 10;
sendButton.Enabled = hasTitle && hasDescription;
};
}
public override NSView GetView(NSOutlineView outlineView, NSTableColumn tableColumn, NSObject item)
{
GetVMGroupCellItendifiterFromFacade(item, out EditorViewModel evm, out PanelGroupViewModel group, out var cellIdentifier);
if (group != null)
{
var labelContainer = (NSView)outlineView.MakeView(CategoryIdentifier, this);
if (labelContainer == null)
{
labelContainer = new NSView {
Identifier = CategoryIdentifier,
};
var disclosure = outlineView.MakeView("NSOutlineViewDisclosureButtonKey", outlineView);
disclosure.TranslatesAutoresizingMaskIntoConstraints = false;
labelContainer.AddSubview(disclosure);
var label = new UnfocusableTextField {
TranslatesAutoresizingMaskIntoConstraints = false
};
labelContainer.AddSubview(label);
labelContainer.AddConstraints(new[] {
NSLayoutConstraint.Create(disclosure, NSLayoutAttribute.CenterY, NSLayoutRelation.Equal, labelContainer, NSLayoutAttribute.CenterY, 1, 0),
NSLayoutConstraint.Create(disclosure, NSLayoutAttribute.Left, NSLayoutRelation.Equal, labelContainer, NSLayoutAttribute.Left, 1, 4),
NSLayoutConstraint.Create(label, NSLayoutAttribute.Left, NSLayoutRelation.Equal, disclosure, NSLayoutAttribute.Right, 1, 0),
NSLayoutConstraint.Create(label, NSLayoutAttribute.Height, NSLayoutRelation.Equal, labelContainer, NSLayoutAttribute.Height, 1, 0),
});
}
((UnfocusableTextField)labelContainer.Subviews[1]).StringValue = group.Category;
if (this.dataSource.DataContext.GetIsExpanded(group.Category))
{
SynchronizationContext.Current.Post(s => {
outlineView.ExpandItem(item);
}, null);
}
return(labelContainer);
}
NSView editorOrContainer = null;
if (this.firstCache.TryGetValue(cellIdentifier, out IEditorView editor))
{
this.firstCache.Remove(cellIdentifier);
editorOrContainer = (editor.NativeView is PropertyEditorControl) ? new EditorContainer(this.hostResources, editor)
{
Identifier = cellIdentifier
} : editor.NativeView;
}
else
{
editorOrContainer = GetEditor(cellIdentifier, evm, outlineView);
editor = ((editorOrContainer as EditorContainer)?.EditorView) ?? editorOrContainer as IEditorView;
}
if (editorOrContainer is EditorContainer ec)
{
ec.ViewModel = evm;
ec.Label = evm.Name;
#if DEBUG // Currently only used to highlight which controls haven't been implemented
if (editor == null)
{
ec.LabelTextColor = NSColor.Red;
}
#endif
}
if (editor != null)
{
var ovm = evm as ObjectPropertyViewModel;
if (ovm != null && editorOrContainer is EditorContainer container)
{
if (container.LeftEdgeView == null)
{
if (ovm.CanDelve)
{
container.LeftEdgeView = outlineView.MakeView("NSOutlineViewDisclosureButtonKey", outlineView);
}
}
else if (!ovm.CanDelve)
{
container.LeftEdgeView = null;
}
}
else if (!(editorOrContainer is EditorContainer))
{
editor.ViewModel = evm;
}
bool openObjectRow = ovm != null && outlineView.IsItemExpanded(item);
if (!openObjectRow)
{
var parent = outlineView.GetParent(item);
openObjectRow = (parent != null && ((NSObjectFacade)parent).Target is ObjectPropertyViewModel);
}
SetRowValueBackground(editorOrContainer, openObjectRow);
// Force a row update due to new height, but only when we are non-default
if (editor.IsDynamicallySized)
{
nint index = outlineView.RowForItem(item);
outlineView.NoteHeightOfRowsWithIndexesChanged(new NSIndexSet(index));
}
}
else if (editorOrContainer is PanelHeaderEditorControl header)
{
header.ViewModel = this.dataSource.DataContext;
}
return(editorOrContainer);
}
