private IEnumerator _takeScreenShot(Canvas canvasPanel, SCREENSHOT_TYPE screenShotType = SCREENSHOT_TYPE.IMAGE_AND_TEXT, bool createNewInstance = true)
{
//Get Visible Canvas In the Scene
allOtherCanvas = getAllCanvasInScene(false);
//Hide all the other Visible Canvas except the one that is passed in as parameter(Canvas we want to take Picture of)
showCanvasExcept(allOtherCanvas, canvasPanel, false);
//Reset the position so that both UI will be in the-same place if we make the duplicate a child
resetPosAndRot(gameObject);
//Check if we should operate on the original image or make a duplicate of it
if (createNewInstance)
{
//Duplicate the Canvas we want to take Picture of
duplicatedTargetUI = duplicateUI(canvasPanel.gameObject, "ScreenShotUI");
//Make this game object the parent of the Canvas
duplicatedTargetUI.transform.SetParent(gameObject.transform);
//Hide the orginal Canvas we want to take Picture of
showCanvas(canvasPanel, false);
}
else
{
//No duplicate. Use original GameObject
//Make this game object the parent of the Canvas
canvasPanel.transform.SetParent(gameObject.transform);
}
RenderMode defaultRenderMode;
//Change the duplicated Canvas to RenderMode to overlay
Canvas duplicatedCanvas = null;
if (createNewInstance)
{
duplicatedCanvas = duplicatedTargetUI.GetComponent <Canvas>();
defaultRenderMode = duplicatedCanvas.renderMode;
duplicatedCanvas.renderMode = RenderMode.ScreenSpaceOverlay;
}
else
{
defaultRenderMode = canvasPanel.renderMode;
canvasPanel.renderMode = RenderMode.ScreenSpaceOverlay;
}
if (screenShotType == SCREENSHOT_TYPE.IMAGE_AND_TEXT)
{
//No Action Needed
}
else if (screenShotType == SCREENSHOT_TYPE.IMAGE_ONLY)
{
if (createNewInstance)
{
//Get all images on the duplicated visible Canvas
allTexts = getAllTextsFromCanvas(duplicatedTargetUI, false);
//Hide those images
showTexts(allTexts, false);
}
else
{
//Get all images on the duplicated visible Canvas
allTexts = getAllTextsFromCanvas(canvasPanel.gameObject, false);
//Hide those images
showTexts(allTexts, false);
}
}
else if (screenShotType == SCREENSHOT_TYPE.TEXT_ONLY)
{
if (createNewInstance)
{
//Get all images on the duplicated visible Canvas
allImages = getAllImagesFromCanvas(duplicatedTargetUI, false);
//Hide those images
showImages(allImages, false);
}
else
{
//Get all images on the duplicated visible Canvas
allImages = getAllImagesFromCanvas(canvasPanel.gameObject, false);
//Hide those images
showImages(allImages, false);
}
}
//////////////////////////////////////Finally Take ScreenShot///////////////////////////////
yield return(new WaitForEndOfFrame());
Texture2D screenImage = new Texture2D(Screen.width, Screen.height);
//Get Image from screen
screenImage.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
screenImage.Apply();
//Convert to png
byte[] pngBytes = screenImage.EncodeToPNG();
/*FOR TESTING/DEBUGGING PURPOSES ONLY. COMMENT THIS
* string path = Application.persistentDataPath + "/CanvasScreenShot.png";
* System.IO.File.WriteAllBytes(path, pngBytes);
* Debug.Log(path);*/
//Notify functions that are subscribed to this event that picture is taken then pass in image bytes as png
if (OnPictureTaken != null)
{
OnPictureTaken(pngBytes);
}
///////////////////////////////////RE-ENABLE OBJECTS
//Change the duplicated Canvas RenderMode back to default Value
if (createNewInstance)
{
duplicatedCanvas.renderMode = defaultRenderMode;
}
else
{
canvasPanel.renderMode = defaultRenderMode;
}
//Un-Hide all the other Visible Canvas except the one that is passed in as parameter(Canvas we want to take Picture of)
showCanvas(allOtherCanvas, true);
if (screenShotType == SCREENSHOT_TYPE.IMAGE_AND_TEXT)
{
//No Action Needed
}
else if (screenShotType == SCREENSHOT_TYPE.IMAGE_ONLY)
{
//Un-Hide those images
showTexts(allTexts, true);
}
else if (screenShotType == SCREENSHOT_TYPE.TEXT_ONLY)
{
//Un-Hide those images
showImages(allImages, true);
}
//Un-hide the orginal Canvas we want to take Picture of
showCanvas(canvasPanel, true);
if (createNewInstance)
{
//Destroy the duplicated GameObject
Destroy(duplicatedTargetUI, 1f);
}
else
{
//Remove the Canvas as parent
canvasPanel.transform.SetParent(null);
}
}
//takes Screenshot
public void takeScreenShot(Canvas canvasPanel, SCREENSHOT_TYPE screenShotType = SCREENSHOT_TYPE.IMAGE_AND_TEXT, bool createNewInstance = true)
{
StartCoroutine(_takeScreenShot(canvasPanel, screenShotType, createNewInstance));
}
