chuan/Ursa.Avalonia
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Feature: Added a Range selection mode by aspect ratio value.

Browse Source
This commit is contained in:
望尘空忧
2024-11-13 19:14:12 +08:00
parent 60ba488219
commit 4bfaab3f3d
3 changed files with 134 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/Ursa/Controls/AspectRatioLayout/AspectRatioLayout.cs
View File

@@ -45,6 +45,16 @@ public class AspectRatioLayout : TransitioningContentControl
set => SetValue(CurrentAspectRatioModeProperty, value);
}
public static readonly StyledProperty<double> AspectRatioValueProperty =
AvaloniaProperty.Register<AspectRatioLayout, double>(
nameof(AspectRatioValue));
public double AspectRatioValue
{
get => GetValue(AspectRatioValueProperty);
set => SetValue(AspectRatioValueProperty, value);
}
protected override Type StyleKeyOverride => typeof(TransitioningContentControl);
[Content]
@@ -73,9 +83,14 @@ public class AspectRatioLayout : TransitioningContentControl
return _history.All(x => x) || _history.All(x => !x);
}
private double GetAspectRatio(Rect rect)
{
return Math.Round(Math.Truncate(Math.Abs(rect.Width)) / Math.Truncate(Math.Abs(rect.Height)), 3);
}
private AspectRatioMode GetScaleMode(Rect rect)
{
var scale = Math.Round(Math.Truncate(Math.Abs(rect.Width)) / Math.Truncate(Math.Abs(rect.Height)), 3);
var scale = GetAspectRatio(rect);
var absA = Math.Abs(AspectRatioChangeAmbiguity);
var h = 1d + absA;
var v = 1d - absA;
@@ -96,12 +111,20 @@ public class AspectRatioLayout : TransitioningContentControl
{
var o = (Rect)change.OldValue!;
var n = (Rect)change.NewValue!;
UpdataHistory(GetScaleMode(o) == GetScaleMode(n));
UpdataHistory(GetAspectRatio(o) <= GetAspectRatio(n));
if (!IsRightChanges()) return;
CurrentAspectRatioMode = GetScaleMode(n);
}
var c = Items.FirstOrDefault(x => x.AcceptAspectRatioMode == GetScaleMode(Bounds));
AspectRatioValue = GetAspectRatio(Bounds);
var c =
Items
.Where(x => x.IsUseAspectRatioRange)
.FirstOrDefault(x =>
x.StartAspectRatioValue <= AspectRatioValue
&& AspectRatioValue <= x.EndAspectRatioValue);
c ??= Items.FirstOrDefault(x => x.AcceptAspectRatioMode == GetScaleMode(Bounds));
if (c == null)
{
if (Items.Count == 0) return;