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Update Map.Avalonia.cs

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ClemensFischer 2024-05-29 19:18:37 +02:00
parent 47f173c379
commit 00e35cfb8a
1 changed files with 93 additions and 90 deletions
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183
MapControl/Avalonia/Map.Avalonia.cs
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@ -51,16 +51,72 @@ namespace MapControl
protected override void OnPointerWheelChanged(PointerWheelEventArgs e)
{
ZoomMap(e.GetPosition(this), TargetZoomLevel + MouseWheelZoomDelta * e.Delta.Y);
e.Handled = true;
base.OnPointerWheelChanged(e);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
var point = e.GetCurrentPoint(this);
if (point.Pointer.Type == PointerType.Mouse && HandleMousePressed(point) ||
point.Pointer.Type == PointerType.Touch && HandleTouchPressed(point))
{
point.Pointer.Capture(this);
e.Handled = true;
}
base.OnPointerPressed(e);
}
protected override void OnPointerReleased(PointerReleasedEventArgs e)
{
if (HandlePointerReleased(e.Pointer))
{
e.Pointer.Capture(null);
e.Handled = true;
}
base.OnPointerReleased(e);
}
protected override void OnPointerCaptureLost(PointerCaptureLostEventArgs e)
{
if (HandlePointerReleased(e.Pointer))
{
e.Handled = true;
}
base.OnPointerCaptureLost(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
if (e.Pointer == pointer1 || e.Pointer == pointer2)
{
var position = e.GetPosition(this);
if (pointer2 != null)
{
HandleManipulation(e.Pointer, position);
}
else if (e.Pointer.Type == PointerType.Mouse || ManipulationModes.HasFlag(ManipulationModes.Translate))
{
TranslateMap(position - position1);
position1 = position;
}
e.Handled = true;
}
base.OnPointerMoved(e);
}
private bool HandleMousePressed(PointerPoint point)
{
var handled = pointer1 == null && point.Properties.IsLeftButtonPressed;
if (handled)
{
pointer1 = point.Pointer;
@ -91,115 +147,62 @@ namespace MapControl
return handled;
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
private bool HandlePointerReleased(IPointer pointer)
{
var point = e.GetCurrentPoint(this);
var handled = pointer == pointer1 || pointer == pointer2;
if (point.Pointer.Type == PointerType.Mouse && HandleMousePressed(point) ||
point.Pointer.Type == PointerType.Touch && HandleTouchPressed(point))
if (handled)
{
point.Pointer.Capture(this);
e.Handled = true;
}
base.OnPointerPressed(e);
}
protected override void OnPointerReleased(PointerReleasedEventArgs e)
{
if (e.Pointer == pointer1 || e.Pointer == pointer2)
{
e.Pointer.Capture(null);
if (e.Pointer == pointer1)
if (pointer == pointer1)
{
pointer1 = pointer2;
position1 = position2;
}
pointer2 = null;
e.Handled = true;
}
base.OnPointerReleased(e);
return handled;
}
protected override void OnPointerCaptureLost(PointerCaptureLostEventArgs e)
private void HandleManipulation(IPointer pointer, Point position)
{
if (e.Pointer == pointer1 || e.Pointer == pointer2)
var oldDistance = new Vector(position2.X - position1.X, position2.Y - position1.Y);
var oldOrigin = new Point((position1.X + position2.X) / 2d, (position1.Y + position2.Y) / 2d);
if (pointer == pointer1)
{
if (e.Pointer == pointer1)
{
pointer1 = pointer2;
position1 = position2;
}
pointer2 = null;
e.Handled = true;
position1 = position;
}
else
{
position2 = position;
}
base.OnPointerCaptureLost(e);
}
var newDistance = new Vector(position2.X - position1.X, position2.Y - position1.Y);
var newOrigin = oldOrigin;
var translation = new Point();
var rotation = 0d;
var scale = 1d;
protected override void OnPointerMoved(PointerEventArgs e)
{
if (e.Pointer == pointer1 || e.Pointer == pointer2)
if (ManipulationModes.HasFlag(ManipulationModes.Translate))
{
var position = e.GetPosition(this);
if (pointer2 != null)
{
var oldDistance = new Vector(position2.X - position1.X, position2.Y - position1.Y);
var oldOrigin = new Point((position1.X + position2.X) / 2d, (position1.Y + position2.Y) / 2d);
if (e.Pointer == pointer1)
{
position1 = position;
}
else
{
position2 = position;
}
var newDistance = new Vector(position2.X - position1.X, position2.Y - position1.Y);
var newOrigin = oldOrigin;
var translation = new Point();
var rotation = 0d;
var scale = 1d;
if (ManipulationModes.HasFlag(ManipulationModes.Translate))
{
newOrigin = new Point((position1.X + position2.X) / 2d, (position1.Y + position2.Y) / 2d);
translation = newOrigin - oldOrigin;
}
if (ManipulationModes.HasFlag(ManipulationModes.Rotate))
{
rotation = 180d / Math.PI
* (Math.Atan2(newDistance.Y, newDistance.X) - Math.Atan2(oldDistance.Y, oldDistance.X));
}
if (ManipulationModes.HasFlag(ManipulationModes.Scale))
{
scale = newDistance.Length / oldDistance.Length;
}
TransformMap(newOrigin, translation, rotation, scale);
}
else if (e.Pointer.Type != PointerType.Touch || ManipulationModes.HasFlag(ManipulationModes.Translate))
{
TranslateMap(position - position1);
position1 = position;
}
e.Handled = true;
newOrigin = new Point((position1.X + position2.X) / 2d, (position1.Y + position2.Y) / 2d);
translation = newOrigin - oldOrigin;
}
base.OnPointerMoved(e);
if (ManipulationModes.HasFlag(ManipulationModes.Rotate))
{
rotation = 180d / Math.PI
* (Math.Atan2(newDistance.Y, newDistance.X) - Math.Atan2(oldDistance.Y, oldDistance.X));
}
if (ManipulationModes.HasFlag(ManipulationModes.Scale))
{
scale = newDistance.Length / oldDistance.Length;
}
TransformMap(newOrigin, translation, rotation, scale);
}
}
}