public static ImageBox[] ReduceImageRequest(ImageBox[] images, ImageRequestAction action)
{
var(index, url) = action;
ReducerValidators.ValidateLength(images);
ReducerValidators.ValidateIndex(images, index);
var newImageBox = images[index].TransitionToLoading(url);
return(SetItem(images, index, newImageBox));
}
public static ImageBox[] ReduceClearSlot(ImageBox[] images, ClearImageSlotAction action)
{
var index = action.Slot;
ReducerValidators.ValidateLength(images);
ReducerValidators.ValidateIndex(images, index);
var slot = EnforceSlotType <ImageBox.Loaded>(images[index]);
var newImageBox = slot.TransitionToEmpty();
return(SetItem(images, index, newImageBox));
}
public static ImageBox[] ReduceImageResult(ImageBox[] images, ImageResultAction action)
{
var(index, texture) = action;
ReducerValidators.ValidateLength(images);
ReducerValidators.ValidateIndex(images, index);
var slot = EnforceSlotType <ImageBox.Loading>(images[index]);
var newImageBox = slot.TransitionToLoaded(texture);
return(SetItem(images, index, newImageBox));
}
public static ImageBox[] Reduce(ImageBox[] images, DeleteImageSlotAction action)
{
var index = action.Slot;
ReducerValidators.ValidateLength(images);
ReducerValidators.ValidateIndex(images, index);
var newArray = new ImageBox[images.Length - 1];
Array.Copy(images, 0, newArray, 0, index);
Array.Copy(images, index + 1, newArray, index, images.Length - (index + 1));
return(newArray);
}