Files
Ursa.Avalonia/src/Ursa/Controls/ToolBar/ToolBar.cs
2024-02-22 22:57:27 +08:00

96 lines
3.4 KiB
C#

using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Metadata;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Controls.Templates;
using Avalonia.Layout;
using Avalonia.Markup.Xaml.Templates;
namespace Ursa.Controls;
[TemplatePart(PART_OverflowPanel, typeof(Panel))]
public class ToolBar: HeaderedItemsControl
{
public const string PART_OverflowPanel = "PART_OverflowPanel";
internal Panel? OverflowPanel { get; private set; }
private static readonly ITemplate<Panel?> DefaultTemplate =
new FuncTemplate<Panel?>(() => new ToolBarPanel() { Orientation = Orientation.Horizontal });
public static readonly StyledProperty<Orientation> OrientationProperty =
StackPanel.OrientationProperty.AddOwner<ToolBar>();
public Orientation Orientation
{
get => GetValue(OrientationProperty);
set => SetValue(OrientationProperty, value);
}
public static readonly StyledProperty<int> BandProperty = AvaloniaProperty.Register<ToolBar, int>(
nameof(Band));
public int Band
{
get => GetValue(BandProperty);
set => SetValue(BandProperty, value);
}
public static readonly AttachedProperty<OverflowMode> OverflowModeProperty =
AvaloniaProperty.RegisterAttached<ToolBar, Control, OverflowMode>("OverflowMode");
public static void SetOverflowMode(Control obj, OverflowMode value) => obj.SetValue(OverflowModeProperty, value);
public static OverflowMode GetOverflowMode(Control obj) => obj.GetValue(OverflowModeProperty);
internal static readonly AttachedProperty<bool> IsOverflowItemProperty =
AvaloniaProperty.RegisterAttached<ToolBar, Control, bool>("IsOverflowItem");
internal static void SetIsOverflowItem(Control obj, bool value) => obj.SetValue(IsOverflowItemProperty, value);
internal static bool GetIsOverflowItem(Control obj) => obj.GetValue(IsOverflowItemProperty);
static ToolBar()
{
IsTabStopProperty.OverrideDefaultValue<ToolBar>(false);
ItemsPanelProperty.OverrideDefaultValue<ToolBar>(DefaultTemplate);
OrientationProperty.OverrideDefaultValue<ToolBar>(Orientation.Horizontal);
}
protected override bool NeedsContainerOverride(object? item, int index, out object? recycleKey)
{
return NeedsContainer<Control>(item, out recycleKey);
}
protected override Control CreateContainerForItemOverride(object? item, int index, object? recycleKey)
{
return new ContentPresenter();
}
protected override void ContainerForItemPreparedOverride(Control container, object? item, int index)
{
base.ContainerForItemPreparedOverride(container, item, index);
if (item is Control s)
{
container[!ToolBar.OverflowModeProperty] = s[!ToolBar.OverflowModeProperty];
}
else
{
if (container is ContentPresenter p)
{
p.ApplyTemplate();
var c = p.Child;
if (c != null)
{
// container[ToolBar.OverflowModeProperty] = c[ToolBar.OverflowModeProperty];
container[!ToolBar.OverflowModeProperty] = c[!ToolBar.OverflowModeProperty];
}
}
}
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
OverflowPanel = e.NameScope.Find<Panel>(PART_OverflowPanel);
}
}