chuan/Ursa.Avalonia
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feat: implement layer change.

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This commit is contained in:
rabbitism
2024-01-23 23:29:58 +08:00
parent c8540feeb3
commit b8d258c02a
5 changed files with 103 additions and 18 deletions
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62
src/Ursa/Controls/Dialog/OverlayDialogHost.cs
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@@ -9,37 +9,38 @@ using Avalonia.Media;
using Avalonia.Utilities;
using Avalonia.VisualTree;
namespace Ursa.Controls;
namespace Ursa.Controls;
public class OverlayDialogHost: Canvas
public class OverlayDialogHost : Canvas
{
private readonly List<DialogControl> _dialogs = new();
private readonly List<DialogControl> _modalDialogs = new();
private readonly List<Border> _masks = new();
public string? HostId { get; set; }
private Point _lastPoint;
public static readonly StyledProperty<IBrush?> OverlayMaskBrushProperty = AvaloniaProperty.Register<OverlayDialogHost, IBrush?>(
nameof(OverlayMaskBrush));
public static readonly StyledProperty<IBrush?> OverlayMaskBrushProperty =
AvaloniaProperty.Register<OverlayDialogHost, IBrush?>(
nameof(OverlayMaskBrush));
public IBrush? OverlayMaskBrush
{
get => GetValue(OverlayMaskBrushProperty);
set => SetValue(OverlayMaskBrushProperty, value);
}
private Border CreateOverlayMask() => new()
{
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Stretch,
Width = this.Bounds.Width,
Height = this.Bounds.Height,
Height = this.Bounds.Height,
[!BackgroundProperty] = this[!OverlayMaskBrushProperty],
IsVisible = true,
};
protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
{
base.OnAttachedToVisualTree(e);
@@ -70,7 +71,7 @@ public class OverlayDialogHost: Canvas
if (e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
{
var p = e.GetPosition(this);
var left= p.X - _lastPoint.X;
var left = p.X - _lastPoint.X;
var top = p.Y - _lastPoint.Y;
left = MathUtilities.Clamp(left, 0, Bounds.Width - item.Bounds.Width);
top = MathUtilities.Clamp(top, 0, Bounds.Height - item.Bounds.Height);
@@ -93,7 +94,9 @@ public class OverlayDialogHost: Canvas
{
this.Children.Add(control);
_dialogs.Add(control);
control.ZIndex = Children.Last().ZIndex + 1;
control.OnClose += OnDialogClose;
control.OnLayerChange += OnDialogLayerChange;
}
private void OnDialogClose(object sender, object? e)
@@ -102,11 +105,12 @@ public class OverlayDialogHost: Canvas
{
this.Children.Remove(control);
control.OnClose -= OnDialogClose;
control.OnLayerChange -= OnDialogLayerChange;
if (_dialogs.Contains(control))
{
_dialogs.Remove(control);
}
else if(_modalDialogs.Contains(control))
else if (_modalDialogs.Contains(control))
{
_modalDialogs.Remove(control);
if (_masks.Count > 0)
@@ -116,7 +120,7 @@ public class OverlayDialogHost: Canvas
_masks.Remove(last);
if (_masks.Count > 0)
{
_masks.Last().IsVisible= true;
_masks.Last().IsVisible = true;
}
}
}
@@ -133,7 +137,41 @@ public class OverlayDialogHost: Canvas
{
_masks[i].IsVisible = false;
}
_masks.Add(mask);
control.OnClose += OnDialogClose;
control.OnLayerChange += OnDialogLayerChange;
}
private void OnDialogLayerChange(object sender, DialogLayerChangeEventArgs e)
{
if (sender is not DialogControl control)
return;
if (!_dialogs.Contains(control))
return;
int index = _dialogs.IndexOf(control);
_dialogs.Remove(control);
int newIndex = index;
switch (e.ChangeType)
{
case DialogLayerChangeType.BringForward:
newIndex = MathUtilities.Clamp(index + 1, 0, _dialogs.Count);
break;
case DialogLayerChangeType.SendBackward:
newIndex = MathUtilities.Clamp(index - 1, 0, _dialogs.Count);
break;
case DialogLayerChangeType.BringToFront:
newIndex = _dialogs.Count;
break;
case DialogLayerChangeType.SendToBack:
newIndex = 0;
break;
}
_dialogs.Insert(newIndex, control);
for (int i = 0; i < _dialogs.Count; i++)
{
_dialogs[i].ZIndex = i;
}
}
}