public virtual GameObject InstantiateImageObject(TextureExporter.ImageFile image, int i, Transform parent)
{
// Instantiage prefab
GameObject instance = GameObject.Instantiate(m_ImageItemPrefab);
// Set the go parent
instance.transform.SetParent(parent);
instance.transform.localScale = Vector3.one;
// Set texture
RawImage img = instance.GetComponentInChildren <RawImage> ();
if (img == null)
{
Debug.LogError("Can not find the RawImage component in the gallery image. Be sure the canvas game object is enabled before calling this method.");
}
img.texture = image.m_Texture;
// Add button callback
Button btn = instance.GetComponentInChildren <Button> ();
int index = i;
btn.onClick.AddListener(() => OnSelectImageCallback(index));
// Add image to list
m_ImageInstances.Add(instance);
return(instance);
}
public virtual void DoUpdate()
{
TextureExporter.ImageFile imageFile = m_Gallery.m_ImageFiles [m_CurrentImageId];
// Update the texture image
RawImage img = m_ImageContainer.GetComponentInChildren <RawImage> ();
img.texture = imageFile.m_Texture;
// Scale the texture to fit its parent size
float parentRatio = m_ImageContainer.rect.width / m_ImageContainer.rect.height;
float ratio = (float)imageFile.m_Texture.width / (float)imageFile.m_Texture.height;
float scaleCoeff = ratio / parentRatio;
if (scaleCoeff >= 1f)
{
img.GetComponentInChildren <RawImage> ().transform.localScale = new Vector3(1f, 1f / scaleCoeff, 1f);
}
else
{
img.GetComponentInChildren <RawImage> ().transform.localScale = new Vector3(scaleCoeff, 1f, 1f);
}
// Buttons
if (m_CurrentImageId == 0)
{
m_PreviousButton.gameObject.SetActive(false);
}
else
{
m_PreviousButton.gameObject.SetActive(true);
}
if (m_CurrentImageId >= m_Gallery.m_ImageFiles.Count - 1)
{
m_NextButton.gameObject.SetActive(false);
}
else
{
m_NextButton.gameObject.SetActive(true);
}
m_FileName.text = imageFile.m_Name;
m_PageText.text = (m_CurrentImageId + 1).ToString() + "/" + m_Gallery.m_ImageFiles.Count;
}
