Steven Kirk
7 years ago
committed by
GitHub
GitHub
66 changed files with 1153 additions and 566 deletions
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open_collective: avalonia |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using Avalonia; |
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using Avalonia.Controls; |
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using Avalonia.Input; |
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using Avalonia.Media; |
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using Avalonia.Media.Immutable; |
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|
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namespace ControlCatalog.Pages |
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{ |
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public class PointersPage : Control |
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{ |
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class PointerInfo |
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{ |
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public Point Point { get; set; } |
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public Color Color { get; set; } |
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} |
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private static Color[] AllColors = new[] |
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{ |
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Colors.Aqua, |
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Colors.Beige, |
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Colors.Chartreuse, |
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Colors.Coral, |
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Colors.Fuchsia, |
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Colors.Crimson, |
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Colors.Lavender, |
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Colors.Orange, |
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Colors.Orchid, |
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Colors.ForestGreen, |
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Colors.SteelBlue, |
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Colors.PapayaWhip, |
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Colors.PaleVioletRed, |
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Colors.Goldenrod, |
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Colors.Maroon, |
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Colors.Moccasin, |
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Colors.Navy, |
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Colors.Wheat, |
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Colors.Violet, |
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Colors.Sienna, |
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Colors.Indigo, |
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Colors.Honeydew |
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}; |
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private Dictionary<IPointer, PointerInfo> _pointers = new Dictionary<IPointer, PointerInfo>(); |
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public PointersPage() |
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{ |
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ClipToBounds = true; |
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} |
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void UpdatePointer(PointerEventArgs e) |
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{ |
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if (!_pointers.TryGetValue(e.Pointer, out var info)) |
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{ |
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if (e.RoutedEvent == PointerMovedEvent) |
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return; |
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var colors = AllColors.Except(_pointers.Values.Select(c => c.Color)).ToArray(); |
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var color = colors[new Random().Next(0, colors.Length - 1)]; |
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_pointers[e.Pointer] = info = new PointerInfo {Color = color}; |
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} |
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info.Point = e.GetPosition(this); |
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InvalidateVisual(); |
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} |
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protected override void OnPointerPressed(PointerPressedEventArgs e) |
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{ |
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UpdatePointer(e); |
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e.Pointer.Capture(this); |
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base.OnPointerPressed(e); |
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} |
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protected override void OnPointerMoved(PointerEventArgs e) |
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{ |
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UpdatePointer(e); |
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base.OnPointerMoved(e); |
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} |
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protected override void OnPointerReleased(PointerReleasedEventArgs e) |
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{ |
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_pointers.Remove(e.Pointer); |
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InvalidateVisual(); |
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} |
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public override void Render(DrawingContext context) |
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{ |
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context.FillRectangle(Brushes.Transparent, new Rect(default, Bounds.Size)); |
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foreach (var pt in _pointers.Values) |
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{ |
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var brush = new ImmutableSolidColorBrush(pt.Color); |
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context.DrawGeometry(brush, null, new EllipseGeometry(new Rect(pt.Point.X - 75, pt.Point.Y - 75, |
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150, 150))); |
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} |
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} |
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} |
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} |
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namespace Avalonia.Input |
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{ |
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public interface IPointer |
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{ |
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int Id { get; } |
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void Capture(IInputElement control); |
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IInputElement Captured { get; } |
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PointerType Type { get; } |
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bool IsPrimary { get; } |
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} |
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public enum PointerType |
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{ |
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Mouse, |
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Touch |
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} |
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} |
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@ -1,18 +1,20 @@ |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System; |
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using Avalonia.VisualTree; |
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namespace Avalonia.Input |
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{ |
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public interface IPointerDevice : IInputDevice |
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{ |
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[Obsolete("Use IPointer")] |
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IInputElement Captured { get; } |
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[Obsolete("Use IPointer")] |
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void Capture(IInputElement control); |
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[Obsolete("Use PointerEventArgs.GetPosition")] |
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Point GetPosition(IVisual relativeTo); |
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void SceneInvalidated(IInputRoot root, Rect rect); |
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} |
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} |
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using System; |
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using System.Linq; |
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using Avalonia.VisualTree; |
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namespace Avalonia.Input |
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{ |
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public class Pointer : IPointer, IDisposable |
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{ |
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private static int s_NextFreePointerId = 1000; |
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public static int GetNextFreeId() => s_NextFreePointerId++; |
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public Pointer(int id, PointerType type, bool isPrimary, IInputElement implicitlyCaptured) |
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{ |
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Id = id; |
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Type = type; |
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IsPrimary = isPrimary; |
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ImplicitlyCaptured = implicitlyCaptured; |
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if (ImplicitlyCaptured != null) |
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ImplicitlyCaptured.DetachedFromVisualTree += OnImplicitCaptureDetached; |
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} |
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public int Id { get; } |
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public void Capture(IInputElement control) |
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{ |
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if (Captured != null) |
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Captured.DetachedFromVisualTree -= OnCaptureDetached; |
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Captured = control; |
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if (Captured != null) |
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Captured.DetachedFromVisualTree += OnCaptureDetached; |
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} |
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IInputElement GetNextCapture(IVisual parent) => |
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parent as IInputElement ?? parent.GetVisualAncestors().OfType<IInputElement>().FirstOrDefault(); |
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private void OnCaptureDetached(object sender, VisualTreeAttachmentEventArgs e) |
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{ |
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Capture(GetNextCapture(e.Parent)); |
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} |
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private void OnImplicitCaptureDetached(object sender, VisualTreeAttachmentEventArgs e) |
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{ |
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ImplicitlyCaptured.DetachedFromVisualTree -= OnImplicitCaptureDetached; |
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ImplicitlyCaptured = GetNextCapture(e.Parent); |
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if (ImplicitlyCaptured != null) |
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ImplicitlyCaptured.DetachedFromVisualTree += OnImplicitCaptureDetached; |
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} |
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public IInputElement Captured { get; private set; } |
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public IInputElement ImplicitlyCaptured { get; private set; } |
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public IInputElement GetEffectiveCapture() => Captured ?? ImplicitlyCaptured; |
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public PointerType Type { get; } |
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public bool IsPrimary { get; } |
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public void Dispose() |
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{ |
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if (ImplicitlyCaptured != null) |
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ImplicitlyCaptured.DetachedFromVisualTree -= OnImplicitCaptureDetached; |
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if (Captured != null) |
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Captured.DetachedFromVisualTree -= OnCaptureDetached; |
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} |
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} |
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} |
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namespace Avalonia.Input |
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{ |
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public sealed class PointerPoint |
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{ |
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public PointerPoint(IPointer pointer, Point position, PointerPointProperties properties) |
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{ |
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Pointer = pointer; |
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Position = position; |
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Properties = properties; |
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} |
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public IPointer Pointer { get; } |
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public PointerPointProperties Properties { get; } |
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public Point Position { get; } |
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} |
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public sealed class PointerPointProperties |
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{ |
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public bool IsLeftButtonPressed { get; set; } |
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public bool IsMiddleButtonPressed { get; set; } |
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public bool IsRightButtonPressed { get; set; } |
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public PointerPointProperties() |
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{ |
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} |
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public PointerPointProperties(InputModifiers modifiers) |
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{ |
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IsLeftButtonPressed = modifiers.HasFlag(InputModifiers.LeftMouseButton); |
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IsMiddleButtonPressed = modifiers.HasFlag(InputModifiers.MiddleMouseButton); |
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IsRightButtonPressed = modifiers.HasFlag(InputModifiers.RightMouseButton); |
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} |
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public MouseButton GetObsoleteMouseButton() |
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{ |
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if (IsLeftButtonPressed) |
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return MouseButton.Left; |
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if (IsMiddleButtonPressed) |
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return MouseButton.Middle; |
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if (IsRightButtonPressed) |
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return MouseButton.Right; |
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return MouseButton.None; |
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} |
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} |
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} |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using Avalonia.Interactivity; |
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using Avalonia.VisualTree; |
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namespace Avalonia.Input |
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{ |
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public class PointerWheelEventArgs : PointerEventArgs |
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{ |
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public Vector Delta { get; set; } |
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public PointerWheelEventArgs(IInteractive source, IPointer pointer, IVisual rootVisual, |
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Point rootVisualPosition, |
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PointerPointProperties properties, InputModifiers modifiers, Vector delta) |
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: base(InputElement.PointerWheelChangedEvent, source, pointer, rootVisual, rootVisualPosition, properties, modifiers) |
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{ |
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Delta = delta; |
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} |
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} |
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} |
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namespace Avalonia.Input.Raw |
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{ |
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public class RawTouchEventArgs : RawPointerEventArgs |
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{ |
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public RawTouchEventArgs(IInputDevice device, ulong timestamp, IInputRoot root, |
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RawPointerEventType type, Point position, InputModifiers inputModifiers, |
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long touchPointId) |
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: base(device, timestamp, root, type, position, inputModifiers) |
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{ |
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TouchPointId = touchPointId; |
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} |
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public long TouchPointId { get; set; } |
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} |
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} |
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using System.Collections.Generic; |
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using System.Linq; |
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using Avalonia.Input.Raw; |
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using Avalonia.VisualTree; |
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namespace Avalonia.Input |
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{ |
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/// <summary>
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/// Handles raw touch events
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/// <remarks>
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/// This class is supposed to be used on per-toplevel basis, don't use a shared one
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/// </remarks>
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/// </summary>
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public class TouchDevice : IInputDevice |
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{ |
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Dictionary<long, Pointer> _pointers = new Dictionary<long, Pointer>(); |
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static InputModifiers GetModifiers(InputModifiers modifiers, bool left) |
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{ |
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var mask = (InputModifiers)0x7fffffff ^ InputModifiers.LeftMouseButton ^ InputModifiers.MiddleMouseButton ^ |
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InputModifiers.RightMouseButton; |
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modifiers &= mask; |
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if (left) |
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modifiers |= InputModifiers.LeftMouseButton; |
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return modifiers; |
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} |
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public void ProcessRawEvent(RawInputEventArgs ev) |
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{ |
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var args = (RawTouchEventArgs)ev; |
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if (!_pointers.TryGetValue(args.TouchPointId, out var pointer)) |
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{ |
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if (args.Type == RawPointerEventType.TouchEnd) |
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return; |
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var hit = args.Root.InputHitTest(args.Position); |
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_pointers[args.TouchPointId] = pointer = new Pointer(Pointer.GetNextFreeId(), |
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PointerType.Touch, _pointers.Count == 0, hit); |
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} |
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var target = pointer.GetEffectiveCapture() ?? args.Root; |
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if (args.Type == RawPointerEventType.TouchBegin) |
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{ |
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var modifiers = GetModifiers(args.InputModifiers, pointer.IsPrimary); |
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target.RaiseEvent(new PointerPressedEventArgs(target, pointer, |
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args.Root, args.Position, new PointerPointProperties(modifiers), |
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modifiers)); |
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} |
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if (args.Type == RawPointerEventType.TouchEnd) |
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{ |
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_pointers.Remove(args.TouchPointId); |
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var modifiers = GetModifiers(args.InputModifiers, false); |
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using (pointer) |
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{ |
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target.RaiseEvent(new PointerReleasedEventArgs(target, pointer, |
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args.Root, args.Position, new PointerPointProperties(modifiers), |
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modifiers, pointer.IsPrimary ? MouseButton.Left : MouseButton.None)); |
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} |
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} |
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if (args.Type == RawPointerEventType.TouchUpdate) |
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{ |
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var modifiers = GetModifiers(args.InputModifiers, pointer.IsPrimary); |
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target.RaiseEvent(new PointerEventArgs(InputElement.PointerMovedEvent, target, pointer, args.Root, |
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args.Position, new PointerPointProperties(modifiers), modifiers)); |
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} |
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} |
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} |
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} |
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using Avalonia.Input; |
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using Avalonia.Interactivity; |
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using Avalonia.VisualTree; |
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namespace Avalonia.Controls.UnitTests |
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{ |
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public class MouseTestHelper |
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{ |
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class TestPointer : IPointer |
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{ |
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public int Id { get; } = Pointer.GetNextFreeId(); |
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public void Capture(IInputElement control) |
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{ |
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Captured = control; |
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} |
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public IInputElement Captured { get; set; } |
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public PointerType Type => PointerType.Mouse; |
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public bool IsPrimary => true; |
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} |
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TestPointer _pointer = new TestPointer(); |
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private InputModifiers _pressedButtons; |
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public IInputElement Captured => _pointer.Captured; |
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InputModifiers Convert(MouseButton mouseButton) |
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=> (mouseButton == MouseButton.Left ? InputModifiers.LeftMouseButton |
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: mouseButton == MouseButton.Middle ? InputModifiers.MiddleMouseButton |
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: mouseButton == MouseButton.Right ? InputModifiers.RightMouseButton : InputModifiers.None); |
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int ButtonCount(PointerPointProperties props) |
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{ |
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var rv = 0; |
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if (props.IsLeftButtonPressed) |
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rv++; |
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if (props.IsMiddleButtonPressed) |
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rv++; |
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if (props.IsRightButtonPressed) |
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rv++; |
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return rv; |
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} |
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private MouseButton _pressedButton; |
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InputModifiers GetModifiers(InputModifiers modifiers) => modifiers | _pressedButtons; |
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public void Down(IInteractive target, MouseButton mouseButton = MouseButton.Left, Point position = default, |
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InputModifiers modifiers = default, int clickCount = 1) |
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=> Down(target, target, mouseButton, position, modifiers, clickCount); |
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public void Down(IInteractive target, IInteractive source, MouseButton mouseButton = MouseButton.Left, |
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Point position = default, InputModifiers modifiers = default, int clickCount = 1) |
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{ |
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_pressedButtons |= Convert(mouseButton); |
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var props = new PointerPointProperties(_pressedButtons); |
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if (ButtonCount(props) > 1) |
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Move(target, source, position); |
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else |
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{ |
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_pressedButton = mouseButton; |
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target.RaiseEvent(new PointerPressedEventArgs(source, _pointer, (IVisual)source, position, props, |
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GetModifiers(modifiers), clickCount)); |
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} |
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} |
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public void Move(IInteractive target, in Point position, InputModifiers modifiers = default) => Move(target, target, position, modifiers); |
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public void Move(IInteractive target, IInteractive source, in Point position, InputModifiers modifiers = default) |
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{ |
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target.RaiseEvent(new PointerEventArgs(InputElement.PointerMovedEvent, source, _pointer, (IVisual)target, position, |
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new PointerPointProperties(_pressedButtons), GetModifiers(modifiers))); |
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} |
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public void Up(IInteractive target, MouseButton mouseButton = MouseButton.Left, Point position = default, |
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InputModifiers modifiers = default) |
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=> Up(target, target, mouseButton, position, modifiers); |
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public void Up(IInteractive target, IInteractive source, MouseButton mouseButton = MouseButton.Left, |
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Point position = default, InputModifiers modifiers = default) |
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{ |
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var conv = Convert(mouseButton); |
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_pressedButtons = (_pressedButtons | conv) ^ conv; |
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var props = new PointerPointProperties(_pressedButtons); |
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if (ButtonCount(props) == 0) |
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target.RaiseEvent(new PointerReleasedEventArgs(source, _pointer, (IVisual)target, position, props, |
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GetModifiers(modifiers), _pressedButton)); |
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else |
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Move(target, source, position); |
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} |
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public void Click(IInteractive target, MouseButton button = MouseButton.Left, Point position = default, |
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InputModifiers modifiers = default) |
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=> Click(target, target, button, position, modifiers); |
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public void Click(IInteractive target, IInteractive source, MouseButton button = MouseButton.Left, |
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Point position = default, InputModifiers modifiers = default) |
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{ |
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Down(target, source, button, position, modifiers); |
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Up(target, source, button, position, modifiers); |
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} |
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public void Enter(IInteractive target) |
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{ |
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target.RaiseEvent(new PointerEventArgs(InputElement.PointerEnterEvent, target, _pointer, (IVisual)target, default, |
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new PointerPointProperties(_pressedButtons), _pressedButtons)); |
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} |
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public void Leave(IInteractive target) |
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{ |
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target.RaiseEvent(new PointerEventArgs(InputElement.PointerLeaveEvent, target, _pointer, (IVisual)target, default, |
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new PointerPointProperties(_pressedButtons), _pressedButtons)); |
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} |
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} |
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} |
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