/// <summary>
/// Called internally in <see cref="OSA{TParams, TItemViewsHolder}.Init()"/> and every time the scrollview's size changes.
/// This makes sure the content and viewport have valid values. It can also be overridden to initialize custom data
/// </summary>
public virtual void InitIfNeeded(IOSA iAdapter)
{
_ScrollViewRT = iAdapter.AsMonoBehaviour.transform as RectTransform;
LayoutRebuilder.ForceRebuildLayoutImmediate(ScrollViewRT);
AssertValidWidthHeight(ScrollViewRT);
var sr = ScrollViewRT.GetComponent <ScrollRect>();
if (sr && sr.enabled)
{
throw new OSAException("The ScrollRect is not needed anymore starting with v4.0. Remove or disable it!");
}
if (!Content)
{
throw new OSAException("Content not set!");
}
if (!Viewport)
{
Viewport = ScrollViewRT;
if (Content.parent != ScrollViewRT)
{
throw new OSAException("Content's parent should be the ScrollView itself if there's no viewport specified!");
}
}
if (!_Snapper)
{
_Snapper = ScrollViewRT.GetComponent <Snapper8>();
}
if (ForwardDragSameDirectionAtBoundary && !ForwardDragToParents)
{
Debug.Log("OSA: ForwardDragSameDirectionAtBoundary is true, but ForwardDragToParents is false. This will have no effect");
}
if ((ContentPadding.left == -1) != (ContentPadding.right == -1))
{
Debug.Log("OSA: ContentPadding.right and .left should either be both zero or positive or both -1. Setting both to 0...");
ContentPadding.left = ContentPadding.right = 0;
}
if ((ContentPadding.top == -1) != (ContentPadding.bottom == -1))
{
Debug.Log("OSA: ContentPadding.top and .bottom should either be both zero or positive or both -1. Setting both to 0...");
ContentPadding.top = ContentPadding.bottom = 0;
}
effects.InitIfNeeded();
// There's no concept of content padding when looping. spacing should be used instead
if (effects.LoopItems)
{
bool showLog = false;
int ctSp = (int)ContentSpacing;
if (IsHorizontal)
{
if (ContentPadding.left != ctSp)
{
showLog = true;
ContentPadding.left = ctSp;
}
if (ContentPadding.right != ctSp)
{
showLog = true;
ContentPadding.right = ctSp;
}
}
else
{
if (ContentPadding.top != ctSp)
{
showLog = true;
ContentPadding.top = ctSp;
}
if (ContentPadding.bottom != ctSp)
{
showLog = true;
ContentPadding.bottom = ctSp;
}
}
if (showLog)
{
Debug.Log("OSA: setting conteng padding to be the same as content spacing (" + ContentSpacing.ToString("#############.##") + "), because looping is enabled");
}
}
}
/// <summary>
/// Called internally in <see cref="OSA{TParams, TItemViewsHolder}.Init()"/> and every time the scrollview's size changes.
/// This makes sure the content and viewport have valid values. It can also be overridden to initialize custom data
/// </summary>
public virtual void InitIfNeeded(IOSA iAdapter)
{
_ScrollViewRT = iAdapter.AsMonoBehaviour.transform as RectTransform;
var sr = ScrollViewRT.GetComponent <ScrollRect>();
if (sr && sr.enabled)
{
throw new UnityException("OSA: The ScrollRect is not needed anymore starting with v4.0. Remove or disable it!");
}
if (!Content)
{
throw new UnityException("OSA: Content not set!");
}
if (!Viewport)
{
Viewport = ScrollViewRT;
if (Content.parent != ScrollViewRT)
{
throw new UnityException("OSA: Content's parent should be the ScrollView itself if there's no viewport specified!");
}
}
if (!_Snapper)
{
_Snapper = ScrollViewRT.GetComponent <Snapper8>();
}
effects.InitIfNeeded();
// There's no concept of content padding when looping. spacinf should be used instead
if (effects.loopItems)
{
bool showLog = false;
int ctSp = (int)ContentSpacing;
if (IsHorizontal)
{
if (ContentPadding.left != ctSp)
{
showLog = true;
ContentPadding.left = ctSp;
}
if (ContentPadding.right != ctSp)
{
showLog = true;
ContentPadding.right = ctSp;
}
}
else
{
if (ContentPadding.top != ctSp)
{
showLog = true;
ContentPadding.top = ctSp;
}
if (ContentPadding.bottom != ctSp)
{
showLog = true;
ContentPadding.bottom = ctSp;
}
}
if (showLog)
{
Debug.Log("OSA: setting conteng padding to be the same as content spacing (" + ContentSpacing.ToString("#############.##") + "), because looping is enabled");
}
}
}