/// <summary>
/// Updates the image to be displayed with a new layout.
/// </summary>
/// <param name="imageResource">The image resources that is to be displayed.</param>
/// <param name="layout">The layout of the image.</param>
public void Update(ImageResource imageResource, ImageLayout layout)
{
_imageResource = imageResource;
_imageLayout = layout;
// handle null images so that it is easier to write photo viewers
if (Application != null && _imageResource != null)
{
ResourceId = Application.GetResourceId(new Resource(ImageResource.Name, ResourceType.Image));
PostCommand(new Commands.ViewSetResource(ViewId, ResourceId, (long)Layout));
}
}
/// <summary>
/// Tests equality between two resources
/// </summary>
/// <param name="obj">Must be an ImageResource.</param>
/// <returns>true if the resources represent the same item; false otherwise.</returns>
public override bool Equals(object obj)
{
ImageResource imageResource = obj as ImageResource;
if (imageResource != null)
{
return(_resourceId == imageResource._resourceId);
}
else
{
return(false);
}
}
/// <summary>
/// Creates an <see cref="ImageView"/> that displays an image.
/// </summary>
/// <param name="imageResource">An image retrieved from <see cref="Application.GetImageResource"/>.</param>
/// <param name="imageLayout">A set of <see cref="ImageLayout"/> flags that controls the layout of the image.</param>
public ImageView(ImageResource imageResource, ImageLayout imageLayout)
{
Update(imageResource, imageLayout);
}
/// <summary>
/// Sets the ImageResource property to the given value.
/// </summary>
/// <param name="imageResource">The image resources that is to be displayed.</param>
public void Update(ImageResource imageResource)
{
Update(imageResource, _imageLayout);
}
/// <summary>
/// Creates an <see cref="ImageView"/> that displays an image.
/// </summary>
/// <param name="imageResource">An image retrieved from <see cref="Application.GetImageResource"/>.</param>
public ImageView(ImageResource imageResource)
: this(imageResource, 0)
{
}