/// <summary>
/// Called whenever properties affecting the image are changed.
/// </summary>
public virtual void ImageChanged()
{
if (IgnoreObject)
{
return;
}
if (ImageComponent == null)
{
// add image component if background color is defined
if (BackgroundColorProperty.IsUndefined(this, true))
{
return;
}
ImageComponent = GameObject.AddComponent <UnityEngine.UI.Image>();
}
if (BackgroundColorProperty.IsUndefined(this))
{
if (ImageComponent.sprite != null || ImageComponent.overrideSprite != null)
{
// use white color by default if image is set
ImageComponent.color = Color.white;
}
else
{
// use clear color by default if image isn't set
ImageComponent.color = Color.clear;
}
}
var sprite = ImageComponent.overrideSprite ?? ImageComponent.sprite;
if (Width == null && Height == null)
{
// if width and height is undefined, adjust size to native size of sprite
if (sprite != null)
{
ImageComponent.SetNativeSize();
OverrideWidth = ElementSize.FromPixels(ImageComponent.rectTransform.sizeDelta.x);
OverrideHeight = ElementSize.FromPixels(ImageComponent.rectTransform.sizeDelta.y);
}
}
bool isLoading = BackgroundSprite != null && !BackgroundSprite.IsLoaded;
if (isLoading && sprite == null)
{
// always disable image while loading if current sprite isn't set
ImageComponent.enabled = false;
}
else
{
// disable raycast blocks if image is transparent
ImageComponent.enabled = RaycastBlockMode == RaycastBlockMode.Always ? true : ImageComponent.color.a > 0;
}
}
/// <summary>
/// Called whenever properties affecting the image are changed.
/// </summary>
public virtual void ImageChanged()
{
if (IgnoreObject)
{
return;
}
if (ImageComponent == null)
{
// add image component if background color is defined
if (BackgroundColorProperty.IsUndefined(this, true))
{
return;
}
ImageComponent = GameObject.AddComponent <UnityEngine.UI.Image>();
}
if (BackgroundColorProperty.IsUndefined(this))
{
if (ImageComponent.sprite != null || ImageComponent.overrideSprite != null)
{
// use white color by default if image is set
ImageComponent.color = Color.white;
}
else
{
// use clear color by default if image isn't set
ImageComponent.color = Color.clear;
}
}
var sprite = ImageComponent.overrideSprite ?? ImageComponent.sprite;
bool isLoading = BackgroundSprite != null && !BackgroundSprite.IsLoaded;
if (isLoading && sprite == null)
{
// always disable image while loading if current sprite isn't set
ImageComponent.enabled = false;
}
else
{
// disable raycast blocks if image is transparent
ImageComponent.enabled = RaycastBlockMode == RaycastBlockMode.Always ? true : ImageComponent.color.a > 0;
}
}
/// <summary>
/// Returns boolean indicating if background is visible.
/// </summary>
private bool BackgroundIsVisible()
{
if (BackgroundColorProperty.IsUndefined(this))
{
return(false);
}
if (BackgroundColor.a <= 0)
{
return(false);
}
if (!AlphaProperty.IsUndefined(this) && Alpha <= 0)
{
return(false);
}
return(IsVisible);
}