//
// NCViewerImagemeter.swift
// Nextcloud
//
// Created by Marino Faggiana on 22/03/2019.
// Copyright © 2019 Marino Faggiana. All rights reserved.
//
// Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
class NCViewerImagemeter: NSObject {
private var imagemeterView: IMImagemeterView!
private let appDelegate = UIApplication.shared.delegate as! AppDelegate
private var nameArchiveImagemeter: String = ""
private var pathArchiveImagemeter: String = ""
private var annotation: IMImagemeterCodable.imagemeterAnnotation?
private var audioPlayer = AVAudioPlayer()
private var timer = Timer()
private var durationPlayer: TimeInterval = 0
private var counterSecondPlayer: TimeInterval = 0
private var metadata: tableMetadata!
private var detail: CCDetail!
private var safeAreaBottom: Int = 0
private let dimButton: CGFloat = 30.0
@objc public init(metadata: tableMetadata, detail: CCDetail) {
super.init()
self.metadata = metadata
self.detail = detail
}
@objc public func viewImagemeter() {
guard let rootView = UIApplication.shared.keyWindow else {
return
}
if #available(iOS 11.0, *) {
safeAreaBottom = Int(rootView.safeAreaInsets.bottom)
}
for view in self.detail.view.subviews {
if view is IMImagemeterView {
view.removeFromSuperview()
}
}
nameArchiveImagemeter = (metadata.fileNameView as NSString).deletingPathExtension
pathArchiveImagemeter = CCUtility.getDirectoryProviderStorageFileID(metadata.fileID) + "/" + nameArchiveImagemeter
self.imagemeterView = IMImagemeterView.instanceFromNib() as? IMImagemeterView
self.imagemeterView.frame = CGRect(x: 0, y: 0, width: Int(detail.view.frame.width), height: Int(detail.view.frame.height) - Int(k_detail_Toolbar_Height) - safeAreaBottom - 1)
detail.view.addSubview(imagemeterView)
do {
let annoPath = NSURL(fileURLWithPath: pathArchiveImagemeter + "/anno-" + nameArchiveImagemeter + ".imm") as URL
let annoData = try Data(contentsOf: annoPath, options: .mappedIfSafe)
if let annotation = IMImagemeterCodable.sharedInstance.decoderAnnotetion(annoData) {
self.annotation = annotation
imageImagemeter()
audioImagemeter()
} else {
appDelegate.messageNotification("_error_", description: "_error_json_decoding_", visible: true, delay: TimeInterval(k_dismissAfterSecond), type: TWMessageBarMessageType.error, errorCode: Int(k_CCErrorInternalError))
}
} catch {
print("error:\(error)")
}
}
private func imageImagemeter() {
guard let annotation = self.annotation else {
return
}
let imageFilename = annotation.image.filename
if let image = UIImage(contentsOfFile: pathArchiveImagemeter + "/" + imageFilename) {
let factor = image.size.width / image.size.height
imagemeterView.imageHeightConstraint.constant = imagemeterView.bounds.size.width / factor
imagemeterView.image.image = NCUtility.sharedInstance.resizeImage(image: image, newWidth: imagemeterView.bounds.size.width)
}
}
private func audioImagemeter() {
guard let annotation = self.annotation else {
return
}
if annotation.elements != nil {
for element in annotation.elements! {
if element.audio_recording == nil {
continue
}
let center = IMImagemeterCodable.sharedInstance.convertCoordinate(x: element.center?.x ?? 0, y: element.center?.y ?? 0, width: imagemeterView.bounds.width, height: imagemeterView.imageHeightConstraint.constant)
let button = UIButton()
button.frame = CGRect(x: center.x - dimButton/2, y: center.y - dimButton/2, width: dimButton, height: dimButton)
button.setImage(UIImage(named: "audioPlayFull"), for: .normal)
button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
button.tag = element.id
imagemeterView.image.addSubview(button)
if element.arrows != nil {
for arrow in element.arrows! {
let endPt = IMImagemeterCodable.sharedInstance.convertCoordinate(x: arrow.end_pt.x, y: arrow.end_pt.y, width: imagemeterView.bounds.width, height: imagemeterView.imageHeightConstraint.constant)
imagemeterView.image.image = drawLineOnImage(startingImage: imagemeterView.image.image!, x: center.x, y: center.y, endX: endPt.x, endY: endPt.y, color: .yellow, size: 1.5)
}
}
}
}
}
private func drawLineOnImage(startingImage: UIImage, x: CGFloat, y: CGFloat, endX:CGFloat, endY:CGFloat, color: UIColor, size: CGFloat) -> UIImage {
// Create a context of the starting image size and set it as the current one
UIGraphicsBeginImageContext(startingImage.size)
// Draw the starting image in the current context as background
startingImage.draw(at: CGPoint.zero)
// Get the current context
let context = UIGraphicsGetCurrentContext()!
// Draw a red line
context.setLineWidth(size)
context.setStrokeColor(color.cgColor)
context.move(to: CGPoint(x: x, y: y))
context.addLine(to: CGPoint(x: endX, y: endY))
context.strokePath()
// Save the context as a new UIImage
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image!
}
@objc private func buttonAction(sender: UIButton!) {
guard let annotation = self.annotation else {
return
}
for element in annotation.elements! {
if element.id == sender.tag {
do {
let fileNamePath = pathArchiveImagemeter + "/" + element.audio_recording!.recording_filename
try audioPlayer = AVAudioPlayer(contentsOf: URL(fileURLWithPath: fileNamePath))
audioPlayer.delegate = self
audioPlayer.prepareToPlay()
audioPlayer.play()
durationPlayer = TimeInterval(audioPlayer.duration)
counterSecondPlayer = 0
timer.invalidate()
timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(updateTimer), userInfo: nil, repeats: true)
} catch {
}
}
}
}
@objc private func updateTimer() {
counterSecondPlayer += 1
imagemeterView.progressView.progress = Float(counterSecondPlayer / durationPlayer)
}
}
extension NCViewerImagemeter: AVAudioPlayerDelegate {
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
updateTimer()
timer.invalidate()
counterSecondPlayer = 0
DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
self.imagemeterView.progressView.progress = 0
}
}
}
class IMImagemeterView: UIView {
@IBOutlet weak var image: UIImageView!
@IBOutlet weak var imageHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var progressView: UIProgressView!
class func instanceFromNib() -> UIView {
return UINib(nibName: "IMImagemeterView", bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! UIView
}
override func awakeFromNib() {
super.awakeFromNib()
image.isUserInteractionEnabled = true
progressView.progressTintColor = NCBrandColor.sharedInstance.brandElement
progressView.trackTintColor = UIColor(red: 247.0/255.0, green: 247.0/255.0, blue: 247.0/255.0, alpha: 1.0)
progressView.progress = 0
}
}