private const float Epsilon = 0.00001F; // Prevents divide by zero
public static bool CropSelection(ShapeRange shapeRange)
{
bool hasChange = false;
Shape refObj = shapeRange[1];
float refScaleWidth = ShapeUtil.GetScaleWidth(refObj);
float refScaleHeight = ShapeUtil.GetScaleHeight(refObj);
float cropTop = Epsilon;
float cropBottom = Epsilon;
float cropLeft = Epsilon;
float cropRight = Epsilon;
if (!ShapeUtil.IsShape(refObj))
{
cropTop = Math.Max(refObj.PictureFormat.CropTop, Epsilon);
cropBottom = Math.Max(refObj.PictureFormat.CropBottom, Epsilon);
cropLeft = Math.Max(refObj.PictureFormat.CropLeft, Epsilon);
cropRight = Math.Max(refObj.PictureFormat.CropRight, Epsilon);
}
float refShapeCroppedHeight = cropTop + cropBottom;
float refShapeCroppedWidth = cropLeft + cropRight;
for (int i = 2; i <= shapeRange.Count; i++)
{
float heightToCrop = shapeRange[i].Height - refObj.Height;
float widthToCrop = shapeRange[i].Width - refObj.Width;
if (heightToCrop <= 0 && widthToCrop <= 0)
{
continue;
}
hasChange = true;
float scaleWidth = ShapeUtil.GetScaleWidth(shapeRange[i]);
float scaleHeight = ShapeUtil.GetScaleHeight(shapeRange[i]);
if (CropLabSettings.AnchorPosition == AnchorPosition.Reference)
{
shapeRange[i].PictureFormat.CropTop += Math.Max(0, heightToCrop * cropTop / refShapeCroppedHeight / scaleHeight);
shapeRange[i].PictureFormat.CropLeft += Math.Max(0, widthToCrop * cropLeft / refShapeCroppedWidth / scaleWidth);
shapeRange[i].PictureFormat.CropRight += Math.Max(0, widthToCrop * cropRight / refShapeCroppedWidth / scaleWidth);
shapeRange[i].PictureFormat.CropBottom += Math.Max(0, heightToCrop * cropBottom / refShapeCroppedHeight / scaleHeight);
}
else
{
shapeRange[i].PictureFormat.CropTop += CropLabSettings.GetAnchorY() * heightToCrop / scaleHeight;
shapeRange[i].PictureFormat.CropLeft += CropLabSettings.GetAnchorX() * widthToCrop / scaleWidth;
shapeRange[i].PictureFormat.CropRight += (1 - CropLabSettings.GetAnchorX()) * widthToCrop / scaleWidth;
shapeRange[i].PictureFormat.CropBottom += (1 - CropLabSettings.GetAnchorY()) * heightToCrop / scaleHeight;
}
}
return(hasChange);
}
private void CropSpotlightPictureToSlide(ref PowerPoint.Shape shapeToCrop)
{
float scaleFactorWidth = ShapeUtil.GetScaleWidth(shapeToCrop);
float scaleFactorHeight = ShapeUtil.GetScaleHeight(shapeToCrop);
if (shapeToCrop.Left < 0)
{
shapeToCrop.PictureFormat.CropLeft += ((0.0f - shapeToCrop.Left) / scaleFactorWidth);
}
if (shapeToCrop.Left + shapeToCrop.Width > PowerPointPresentation.Current.SlideWidth)
{
shapeToCrop.PictureFormat.CropRight += ((shapeToCrop.Left + shapeToCrop.Width - PowerPointPresentation.Current.SlideWidth) / scaleFactorWidth);
}
if (shapeToCrop.Top < 0)
{
shapeToCrop.PictureFormat.CropTop += ((0.0f - shapeToCrop.Top) / scaleFactorHeight);
}
if (shapeToCrop.Top + shapeToCrop.Height > PowerPointPresentation.Current.SlideHeight)
{
shapeToCrop.PictureFormat.CropBottom += ((shapeToCrop.Top + shapeToCrop.Height - PowerPointPresentation.Current.SlideHeight) / scaleFactorHeight);
}
}