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using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using AppKit;
using CoreGraphics;
using Foundation;
using Xamarin.PropertyEditing.Drawing;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
internal class BrushTabViewController : UnderlinedTabViewController<BrushPropertyViewModel>
{
public BrushTabViewController ()
{
PreferredContentSize = new CGSize (430, 230);
TransitionOptions = NSViewControllerTransitionOptions.None;
EdgeInsets = new NSEdgeInsets (0, 12, 12, 12);
this.filterResource = new NSSearchField {
ControlSize = NSControlSize.Mini,
Font = NSFont.FromFontName (PropertyEditorControl.DefaultFontName, PropertyEditorControl.DefaultFontSize),
PlaceholderString = Properties.Resources.SearchResourcesTitle,
};
this.filterResource.Changed += (sender, e) => {
ViewModel.ResourceSelector.FilterText = this.filterResource.Cell.Title;
this.resource.ReloadData ();
};
this.filterResource.Hidden = true;
TabStack.AddView (this.filterResource, NSStackViewGravity.Leading);
}
public override void OnViewModelChanged (BrushPropertyViewModel oldModel)
{
this.inhibitSelection = true;
base.OnViewModelChanged (oldModel);
var existing = new HashSet<CommonBrushType> (ViewModel?.BrushTypes?.Values ?? Array.Empty<CommonBrushType> ());
existing.IntersectWith (this.brushTypeTable.Keys);
var removed = new HashSet<CommonBrushType> (this.brushTypeTable.Keys);
removed.ExceptWith (existing);
foreach (var item in removed.Select (t => new { Type = t, Tab = TabView.Items[this.brushTypeTable[t]] }).ToArray ()) {
RemoveTabViewItem (item.Tab);
item.Tab.Dispose ();
this.brushTypeTable.Remove (item.Type);
}
if (ViewModel == null)
return;
int i = -1;
foreach (var kvp in ViewModel.BrushTypes) {
i++;
this.brushTypeTable[kvp.Value] = i;
if (existing.Contains (kvp.Value)) {
((NotifyingViewController<BrushPropertyViewModel>)TabViewItems[i].ViewController).ViewModel = ViewModel;
continue;
}
var item = new NSTabViewItem ();
item.Label = kvp.Key;
switch (kvp.Value) {
case CommonBrushType.Solid:
var solid = new SolidColorBrushEditorViewController ();
solid.ViewModel = ViewModel;
item.ViewController = solid;
item.ToolTip = Properties.Resources.SolidBrush;
item.Image = NSImage.ImageNamed ("property-brush-solid-16");
break;
case CommonBrushType.MaterialDesign:
var material = new MaterialBrushEditorViewController ();
material.ViewModel = ViewModel;
item.ViewController = material;
item.ToolTip = Properties.Resources.MaterialDesignColorBrush;
item.Image = NSImage.ImageNamed ("property-brush-palette-16");
break;
case CommonBrushType.Resource:
this.resource = new ResourceBrushViewController ();
this.resource.ViewModel = ViewModel;
item.ViewController = this.resource;
item.ToolTip = Properties.Resources.ResourceBrush;
item.Image = NSImage.ImageNamed ("property-brush-resources-16");
break;
case CommonBrushType.Gradient:
var gradient = new EmptyBrushEditorViewController ();
gradient.ViewModel = ViewModel;
item.ViewController = gradient;
item.ToolTip = item.Label;
item.Image = NSImage.ImageNamed ("property-brush-gradient-16");
break;
default:
case CommonBrushType.NoBrush:
var none = new EmptyBrushEditorViewController ();
none.ViewModel = ViewModel;
item.ViewController = none;
item.ToolTip = Properties.Resources.NoBrush;
item.Image = NSImage.ImageNamed ("property-brush-none-16");
break;
}
InsertTabViewItem (item, i);
}
if (this.brushTypeTable.TryGetValue (ViewModel.SelectedBrushType, out int index)) {
SelectedTabViewItemIndex = index;
}
this.inhibitSelection = false;
}
public override void OnPropertyChanged (object sender, PropertyChangedEventArgs args)
{
base.OnPropertyChanged (sender, args);
switch (args.PropertyName) {
case nameof (BrushPropertyViewModel.SelectedBrushType):
if (this.brushTypeTable.TryGetValue (ViewModel.SelectedBrushType, out int index)) {
SelectedTabViewItemIndex = index;
}
break;
}
}
public override void WillSelect (NSTabView tabView, NSTabViewItem item)
{
if (item.ViewController is NotifyingViewController<BrushPropertyViewModel> brushController)
brushController.ViewModel = ViewModel;
if (this.inhibitSelection)
return;
base.WillSelect (tabView, item);
}
public override void DidSelect (NSTabView tabView, NSTabViewItem item)
{
if (this.inhibitSelection)
return;
ViewModel.SelectedBrushType = ViewModel.BrushTypes[item.Label];
this.filterResource.Hidden = ViewModel.SelectedBrushType != CommonBrushType.Resource;
base.DidSelect (tabView, item);
}
public override void ViewDidLoad ()
{
View.Frame = new CGRect (0, 0, 430, 230);
this.inhibitSelection = true;
base.ViewDidLoad ();
this.inhibitSelection = false;
}
private readonly Dictionary<CommonBrushType, int> brushTypeTable = new Dictionary<CommonBrushType, int> ();
private bool inhibitSelection;
private NSSearchField filterResource;
private ResourceBrushViewController resource;
}
}
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