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protect against null

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This commit is contained in:
Lars Brubaker 2021-05-05 15:13:23 -07:00
parent a67d289529
commit fff8eb6215
4 changed files with 25 additions and 25 deletions
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22
MatterControlLib/DesignTools/EditorTools/ScaleControls/ScaleWidthDepthCornerControl.cs
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@ -181,19 +181,19 @@ namespace MatterHackers.Plugins.EditorTools
//Object3DControlContext.World.RenderPlane(hitPlane.Plane, Color.Red, true, 30, 3);
//Object3DControlContext.World.RenderPlane(initialHitPosition, hitPlane.Plane.Normal, Color.Red, true, 30, 3);
}
}
if (e != null && selectedItem != null)
{
Vector3 startPosition = ObjectSpace.GetCornerPosition(selectedItem, quadrantIndex);
Vector3 endPosition = ObjectSpace.GetCornerPosition(selectedItem, (quadrantIndex + 1) % 4);
Object3DControlContext.World.Render3DLine(startPosition, endPosition, theme.TextColor.WithAlpha(e.Alpha0to255), e.ZBuffered, GuiWidget.DeviceScale);
}
if (e != null)
{
Vector3 startPosition = ObjectSpace.GetCornerPosition(selectedItem, quadrantIndex);
Vector3 endPosition = ObjectSpace.GetCornerPosition(selectedItem, (quadrantIndex + 1) % 4);
Object3DControlContext.World.Render3DLine(startPosition, endPosition, theme.TextColor.WithAlpha(e.Alpha0to255), e.ZBuffered, GuiWidget.DeviceScale);
}
if (MouseIsOver || MouseDownOnControl)
{
DrawMeasureLines(e, quadrantIndex);
DrawMeasureLines(e, quadrantIndex + 1);
if (MouseIsOver || MouseDownOnControl)
{
DrawMeasureLines(e, quadrantIndex);
DrawMeasureLines(e, quadrantIndex + 1);
}
}
base.Draw(e);