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WI00737678---RemoveDragNodesBehavior #43

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merged 6 commits into from
Jul 11, 2024
Merged

WI00737678---RemoveDragNodesBehavior #43

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eefdd34
WI00737678---RemoveDragNodesBehavior
gnawisetech Jul 2, 2024
ac98c3d
WI00737678---RemoveDragNodesBehavior---Update-1
gnawisetech Jul 2, 2024
579b876
WI00737678---RemoveDragNodesBehavior---Update-2
gnawisetech Jul 3, 2024
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WI00737678---RemoveDragNodesBehavior---Update-3
gnawisetech Jul 3, 2024
42411c3
WI00737678---RemoveDragNodesBehavior---Update-4
gnawisetech Jul 8, 2024
87b6778
WI00737678---RemoveDragNodesBehavior---Update-5
gnawisetech Jul 8, 2024
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16 changes: 9 additions & 7 deletions src/Blazor.Diagrams.Core/Behaviors/DragMovablesBehavior.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ namespace Blazor.Diagrams.Core.Behaviors;

public class DragMovablesBehavior : DragBehavior
{
private readonly Dictionary<MovableModel, Point> _initialPositions;
protected readonly Dictionary<MovableModel, Point> _initialPositions;
protected double? _lastClientX;
protected double? _lastClientY;
protected bool _moved;
Expand Down Expand Up @@ -58,7 +58,6 @@ protected override void OnPointerMove(Model? model, PointerEventArgs e)
if (_initialPositions.Count == 0 || _lastClientX == null || _lastClientY == null)
return;

_moved = true;
var deltaX = (e.ClientX - _lastClientX.Value) / Diagram.Zoom;
var deltaY = (e.ClientY - _lastClientY.Value) / Diagram.Zoom;

Expand All @@ -67,21 +66,23 @@ protected override void OnPointerMove(Model? model, PointerEventArgs e)

MoveNodes(_totalMovedX, _totalMovedY);

_moved = true;
_lastClientX = e.ClientX;
_lastClientY = e.ClientY;

}

protected virtual void OnPanChanged(double deltaX, double deltaY)
{
if (_initialPositions.Count == 0 || _lastClientX == null || _lastClientY == null)
return;

_moved = true;

_totalMovedX += deltaX;
_totalMovedY += deltaY;
_totalMovedX += deltaX / Diagram.Zoom;
_totalMovedY += deltaY / Diagram.Zoom;

MoveNodes(_totalMovedX, _totalMovedY);

_moved = true;
}

protected virtual void MoveNodes(double deltaX, double deltaY)
Expand Down Expand Up @@ -118,6 +119,7 @@ protected override void OnPointerUp(Model? model, PointerEventArgs e)
_totalMovedY = 0;
_lastClientX = null;
_lastClientY = null;
_moved = false;
}

private double ApplyGridSize(double n)
Expand All @@ -134,4 +136,4 @@ public override void Dispose()
_initialPositions.Clear();
Diagram.PanChanged -= OnPanChanged;
}
}
}
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