public static PowerPoint.Shape GenerateCalloutWithReferenceTriggerShape(PowerPointSlide currentSlide, PowerPoint.Shape triggerShape)
{
float midpointX = ShapeUtil.GetMidpointX(triggerShape);
PowerPoint.Shape callout = currentSlide.Shapes.AddShape(
TooltipsLabSettings.ShapeType,
midpointX - TooltipsLabConstants.CalloutShapeDefaultWidth / 2 + (float)(TooltipsLabConstants.CalloutArrowheadHorizontalAdjustment * TooltipsLabConstants.CalloutShapeDefaultWidth),
triggerShape.Top - (float)(TooltipsLabConstants.CalloutArrowheadVerticalAdjustment * TooltipsLabConstants.CalloutShapeDefaultHeight) - TooltipsLabConstants.TriggerShapeAndCalloutSpacing,
TooltipsLabConstants.CalloutShapeDefaultWidth,
TooltipsLabConstants.CalloutShapeDefaultHeight);
ShapeUtil.FormatCalloutToDefaultStyle(callout);
callout.TextFrame2.AutoSize = MsoAutoSize.msoAutoSizeTextToFitShape;
callout.TextEffect.Alignment = MsoTextEffectAlignment.msoTextEffectAlignmentCentered;
return(callout);
}