//
// NCCreateFormUploadScanDocument.swift
// Nextcloud
//
// Created by Marino Faggiana on 14/11/2018.
// Copyright © 2018 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
import WeScan
import NCCommunication
import Vision
class NCCreateFormUploadScanDocument: XLFormViewController, NCSelectDelegate, NCCreateFormUploadConflictDelegate {
enum typeDpiQuality {
case low
case medium
case hight
}
var dpiQuality: typeDpiQuality = typeDpiQuality.medium
var serverUrl = ""
var titleServerUrl = ""
var arrayImages: [UIImage] = []
var fileName = CCUtility.createFileNameDate("scan", extension: "pdf")
var password: String = ""
var fileType = "PDF"
let appDelegate = UIApplication.shared.delegate as! AppDelegate
convenience init(serverUrl: String, arrayImages: [UIImage]) {
self.init()
if serverUrl == CCUtility.getHomeServerUrlActiveUrl(appDelegate.activeUrl) {
titleServerUrl = "/"
} else {
titleServerUrl = (serverUrl as NSString).lastPathComponent
}
self.serverUrl = serverUrl
self.arrayImages = arrayImages
}
// MARK: - View Life Cycle
override func viewDidLoad() {
super.viewDidLoad()
self.title = NSLocalizedString("_save_settings_", comment: "")
let saveButton : UIBarButtonItem = UIBarButtonItem(title: NSLocalizedString("_save_", comment: ""), style: UIBarButtonItem.Style.plain, target: self, action: #selector(save))
self.navigationItem.rightBarButtonItem = saveButton
self.tableView.separatorStyle = UITableViewCell.SeparatorStyle.none
// self.tableView.sectionHeaderHeight = 10
// self.tableView.sectionFooterHeight = 10
// self.tableView.backgroundColor = NCBrandColor.sharedInstance.backgroundView
// let row : XLFormRowDescriptor = self.form.formRow(withTag: "fileName")!
// let rowCell = row.cell(forForm: self)
// rowCell.becomeFirstResponder()
// Theming view
NotificationCenter.default.addObserver(self, selector: #selector(changeTheming), name: NSNotification.Name(rawValue: k_notificationCenter_changeTheming), object: nil)
changeTheming()
}
@objc func changeTheming() {
appDelegate.changeTheming(self, tableView: tableView, collectionView: nil, form: true)
initializeForm()
}
//MARK: XLForm
func initializeForm() {
let form : XLFormDescriptor = XLFormDescriptor() as XLFormDescriptor
form.rowNavigationOptions = XLFormRowNavigationOptions.stopDisableRow
var section : XLFormSectionDescriptor
var row : XLFormRowDescriptor
// Section: Destination Folder
section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_save_path_", comment: ""))
form.addFormSection(section)
row = XLFormRowDescriptor(tag: "ButtonDestinationFolder", rowType: XLFormRowDescriptorTypeButton, title: self.titleServerUrl)
row.action.formSelector = #selector(changeDestinationFolder(_:))
row.cellConfig["backgroundColor"] = NCBrandColor.sharedInstance.backgroundForm
row.cellConfig["imageView.image"] = CCGraphics.changeThemingColorImage(UIImage(named: "folder")!, width: 50, height: 50, color: NCBrandColor.sharedInstance.brandElement) as UIImage
row.cellConfig["textLabel.textAlignment"] = NSTextAlignment.right.rawValue
row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textLabel.textColor"] = NCBrandColor.sharedInstance.textView
section.addFormRow(row)
// Section: Quality
section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_quality_image_title_", comment: ""))
form.addFormSection(section)
row = XLFormRowDescriptor(tag: "compressionQuality", rowType: XLFormRowDescriptorTypeSlider)
row.value = 0.5
row.title = NSLocalizedString("_quality_medium_", comment: "")
row.cellConfig["backgroundColor"] = NCBrandColor.sharedInstance.backgroundForm
row.cellConfig["slider.minimumTrackTintColor"] = NCBrandColor.sharedInstance.brandElement
row.cellConfig["slider.maximumValue"] = 1
row.cellConfig["slider.minimumValue"] = 0
row.cellConfig["steps"] = 2
row.cellConfig["textLabel.textAlignment"] = NSTextAlignment.center.rawValue
row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textLabel.textColor"] = NCBrandColor.sharedInstance.textView
section.addFormRow(row)
// Section: Password
section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_pdf_password_", comment: ""))
form.addFormSection(section)
row = XLFormRowDescriptor(tag: "password", rowType: XLFormRowDescriptorTypePassword, title: NSLocalizedString("_password_", comment: ""))
row.cellConfig["backgroundColor"] = NCBrandColor.sharedInstance.backgroundForm
row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textLabel.textColor"] = NCBrandColor.sharedInstance.textView
row.cellConfig["textField.textAlignment"] = NSTextAlignment.right.rawValue
row.cellConfig["textField.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textField.textColor"] = NCBrandColor.sharedInstance.textView
section.addFormRow(row)
// Section: Text recognition
if #available(iOS 13.0, *) {
section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_text_recognition_", comment: ""))
form.addFormSection(section)
row = XLFormRowDescriptor(tag: "textRecognition", rowType: XLFormRowDescriptorTypeBooleanSwitch, title: NSLocalizedString("_text_recognition_", comment: ""))
row.value = 0
row.cellConfig["backgroundColor"] = NCBrandColor.sharedInstance.backgroundForm
row.cellConfig["imageView.image"] = CCGraphics.changeThemingColorImage(UIImage(named: "textRecognition")!, width: 50, height: 50, color: NCBrandColor.sharedInstance.brandElement) as UIImage
row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textLabel.textColor"] = NCBrandColor.sharedInstance.textView
section.addFormRow(row)
}
// Section: File
section = XLFormSectionDescriptor.formSection(withTitle: NSLocalizedString("_file_creation_", comment: ""))
form.addFormSection(section)
row = XLFormRowDescriptor(tag: "filetype", rowType: XLFormRowDescriptorTypeSelectorSegmentedControl, title: NSLocalizedString("_file_type_", comment: ""))
if arrayImages.count == 1 {
row.selectorOptions = ["PDF","JPG"]
} else {
row.selectorOptions = ["PDF"]
}
row.value = "PDF"
row.cellConfig["backgroundColor"] = NCBrandColor.sharedInstance.backgroundForm
row.cellConfig["tintColor"] = NCBrandColor.sharedInstance.brandElement
row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textLabel.textColor"] = NCBrandColor.sharedInstance.textView
section.addFormRow(row)
row = XLFormRowDescriptor(tag: "fileName", rowType: XLFormRowDescriptorTypeAccount, title: NSLocalizedString("_filename_", comment: ""))
row.value = self.fileName
row.cellConfig["backgroundColor"] = NCBrandColor.sharedInstance.backgroundForm
row.cellConfig["textLabel.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textLabel.textColor"] = NCBrandColor.sharedInstance.textView
row.cellConfig["textField.textAlignment"] = NSTextAlignment.right.rawValue
row.cellConfig["textField.font"] = UIFont.systemFont(ofSize: 15.0)
row.cellConfig["textField.textColor"] = NCBrandColor.sharedInstance.textView
section.addFormRow(row)
self.form = form
}
override func formRowDescriptorValueHasChanged(_ formRow: XLFormRowDescriptor!, oldValue: Any!, newValue: Any!) {
super.formRowDescriptorValueHasChanged(formRow, oldValue: oldValue, newValue: newValue)
if formRow.tag == "textRecognition" {
let rowCompressionQuality: XLFormRowDescriptor = self.form.formRow(withTag: "compressionQuality")!
let rowFileTape: XLFormRowDescriptor = self.form.formRow(withTag: "filetype")!
let rowFileName: XLFormRowDescriptor = self.form.formRow(withTag: "fileName")!
let rowPassword: XLFormRowDescriptor = self.form.formRow(withTag: "password")!
self.form.delegate = nil
if newValue as! Int == 1 {
rowFileTape.selectorOptions = ["PDF","TXT"]
rowFileTape.value = "PDF"
fileType = "PDF"
rowPassword.disabled = true
rowCompressionQuality.disabled = false
} else {
if arrayImages.count == 1 {
rowFileTape.selectorOptions = ["PDF","JPG"]
} else {
rowFileTape.selectorOptions = ["PDF"]
}
rowFileTape.value = "PDF"
fileType = "PDF"
rowPassword.disabled = false
rowCompressionQuality.disabled = false
}
rowFileName.value = createFileName(rowFileName.value as? String)
self.updateFormRow(rowFileName)
self.tableView.reloadData()
self.form.delegate = self
}
if formRow.tag == "fileName" {
self.form.delegate = nil
let fileNameNew = newValue as? String
if fileNameNew != nil {
self.fileName = CCUtility.removeForbiddenCharactersServer(fileNameNew)
} else {
self.fileName = ""
}
formRow.value = self.fileName
self.updateFormRow(formRow)
self.form.delegate = self
}
if formRow.tag == "compressionQuality" {
self.form.delegate = nil
//let row : XLFormRowDescriptor = self.form.formRow(withTag: "descriptionQuality")!
let newQuality = newValue as? NSNumber
let compressionQuality = (newQuality?.doubleValue)!
if compressionQuality >= 0.0 && compressionQuality <= 0.3 {
formRow.title = NSLocalizedString("_quality_low_", comment: "")
dpiQuality = typeDpiQuality.low
} else if compressionQuality > 0.3 && compressionQuality <= 0.6 {
formRow.title = NSLocalizedString("_quality_medium_", comment: "")
dpiQuality = typeDpiQuality.medium
} else if compressionQuality > 0.6 && compressionQuality <= 1.0 {
formRow.title = NSLocalizedString("_quality_high_", comment: "")
dpiQuality = typeDpiQuality.hight
}
self.updateFormRow(formRow)
self.form.delegate = self
}
if formRow.tag == "password" {
let stringPassword = newValue as? String
if stringPassword != nil {
password = stringPassword!
} else {
password = ""
}
}
if formRow.tag == "filetype" {
fileType = newValue as! String
let rowFileName : XLFormRowDescriptor = self.form.formRow(withTag: "fileName")!
let rowPassword : XLFormRowDescriptor = self.form.formRow(withTag: "password")!
rowFileName.value = createFileName(rowFileName.value as? String)
self.updateFormRow(rowFileName)
// rowPassword
if fileType == "JPG" || fileType == "TXT" {
rowPassword.value = ""
password = ""
rowPassword.disabled = true
} else {
rowPassword.disabled = false
}
self.updateFormRow(rowPassword)
}
}
override func textFieldDidBeginEditing(_ textField: UITextField) {
let cell = textField.formDescriptorCell()
let tag = cell?.rowDescriptor.tag
if tag == "fileName" {
CCUtility.selectFileName(from: textField)
}
}
func createFileName(_ fileName: String?) -> String {
var name: String = ""
var newFileName: String = ""
if fileName == nil || fileName == "" {
name = CCUtility.createFileNameDate("scan", extension: "pdf") ?? "scan.pdf"
} else {
name = fileName!
}
let ext = (name as NSString).pathExtension.uppercased()
if (ext == "") {
newFileName = name + "." + fileType.lowercased()
} else {
newFileName = (name as NSString).deletingPathExtension + "." + fileType.lowercased()
}
return newFileName
}
// MARK: - Action
func dismissSelect(serverUrl: String?, metadata: tableMetadata?, type: String, buttonType: String, overwrite: Bool) {
if serverUrl != nil {
self.serverUrl = serverUrl!
if serverUrl == CCUtility.getHomeServerUrlActiveUrl(appDelegate.activeUrl) {
self.titleServerUrl = "/"
} else {
self.titleServerUrl = (serverUrl! as NSString).lastPathComponent
}
// Update
let row : XLFormRowDescriptor = self.form.formRow(withTag: "ButtonDestinationFolder")!
row.title = self.titleServerUrl
self.updateFormRow(row)
}
}
@objc func save() {
let rowFileName : XLFormRowDescriptor = self.form.formRow(withTag: "fileName")!
guard let name = rowFileName.value else {
return
}
if name as! String == "" {
return
}
let ext = (name as! NSString).pathExtension.uppercased()
var fileNameSave = ""
if (ext == "") {
fileNameSave = name as! String + "." + fileType.lowercased()
} else {
fileNameSave = (name as! NSString).deletingPathExtension + "." + fileType.lowercased()
}
//Create metadata for upload
let metadataForUpload = NCManageDatabase.sharedInstance.createMetadata(account: appDelegate.activeAccount, fileName: fileNameSave, ocId: UUID().uuidString, serverUrl: serverUrl, urlBase: appDelegate.activeUrl, url: "", contentType: "")
metadataForUpload.session = NCCommunicationCommon.shared.sessionIdentifierBackground
metadataForUpload.sessionSelector = selectorUploadFile
metadataForUpload.status = Int(k_metadataStatusWaitUpload)
if NCUtility.sharedInstance.getMetadataConflict(account: appDelegate.activeAccount, serverUrl: serverUrl, fileName: fileNameSave) != nil {
guard let conflictViewController = UIStoryboard(name: "NCCreateFormUploadConflict", bundle: nil).instantiateInitialViewController() as? NCCreateFormUploadConflict else { return }
conflictViewController.textLabelDetailNewFile = NSLocalizedString("_now_", comment: "")
conflictViewController.serverUrl = serverUrl
conflictViewController.metadatasUploadInConflict = [metadataForUpload]
conflictViewController.delegate = self
self.present(conflictViewController, animated: true, completion: nil)
} else {
NCUtility.sharedInstance.startActivityIndicator(view: self.view)
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
self.dismissAndUpload(metadataForUpload)
}
}
}
func dismissCreateFormUploadConflict(metadatas: [tableMetadata]?) {
if metadatas != nil && metadatas!.count > 0 {
NCUtility.sharedInstance.startActivityIndicator(view: self.view)
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
self.dismissAndUpload(metadatas![0])
}
}
}
func dismissAndUpload(_ metadata: tableMetadata) {
guard let fileNameGenerateExport = CCUtility.getDirectoryProviderStorageOcId(metadata.ocId, fileNameView: metadata.fileNameView) else {
NCUtility.sharedInstance.stopActivityIndicator()
NCContentPresenter.shared.messageNotification("_error_", description: "_error_creation_file_", delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.info, errorCode: Int(k_CCErrorCreationFile), forced: true)
return
}
// Text Recognition TXT
if fileType == "TXT" && self.form.formRow(withTag: "textRecognition")!.value as! Int == 1 {
var textFile = ""
for image in self.arrayImages {
if #available(iOS 13.0, *) {
let requestHandler = VNImageRequestHandler(cgImage: image.cgImage!, options: [:])
let request = VNRecognizeTextRequest { (request, error) in
guard let observations = request.results as? [VNRecognizedTextObservation] else {
NCUtility.sharedInstance.stopActivityIndicator()
return
}
for observation in observations {
guard let textLine = observation.topCandidates(1).first else {
continue
}
textFile += textLine.string
textFile += "\n"
}
}
request.recognitionLevel = .accurate
request.usesLanguageCorrection = true
try? requestHandler.perform([request])
}
}
do {
try textFile.write(to: NSURL(fileURLWithPath: fileNameGenerateExport) as URL , atomically: true, encoding: .utf8)
} catch {
NCUtility.sharedInstance.stopActivityIndicator()
NCContentPresenter.shared.messageNotification("_error_", description: "_error_creation_file_", delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.info, errorCode: Int(k_CCErrorCreationFile), forced: true)
return
}
}
if fileType == "PDF" {
let pdfData = NSMutableData()
if password.count > 0 {
let info: [AnyHashable: Any] = [kCGPDFContextUserPassword as String : password, kCGPDFContextOwnerPassword as String : password]
UIGraphicsBeginPDFContextToData(pdfData, CGRect.zero, info)
} else {
UIGraphicsBeginPDFContextToData(pdfData, CGRect.zero, nil)
}
let context = UIGraphicsGetCurrentContext()
var fontColor = UIColor.clear
#if targetEnvironment(simulator)
fontColor = UIColor.red
#endif
for var image in self.arrayImages {
image = changeImageFromQuality(image, dpiQuality: dpiQuality)
image = changeCompressionImage(image, dpiQuality: dpiQuality)
if #available(iOS 13.0, *) {
if self.form.formRow(withTag: "textRecognition")!.value as! Int == 1 {
UIGraphicsBeginPDFPageWithInfo(CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height), nil)
UIImageView.init(image:image).layer.render(in: context!)
let requestHandler = VNImageRequestHandler(cgImage: image.cgImage!, options: [:])
let request = VNRecognizeTextRequest { (request, error) in
guard let observations = request.results as? [VNRecognizedTextObservation] else {
NCUtility.sharedInstance.stopActivityIndicator()
return
}
for observation in observations {
guard let textLine = observation.topCandidates(1).first else {
continue
}
var t: CGAffineTransform = CGAffineTransform.identity
t = t.scaledBy(x: image.size.width, y: -image.size.height)
t = t.translatedBy(x: 0, y: -1)
let rect = observation.boundingBox.applying(t)
let text = textLine.string
let font = UIFont.systemFont(ofSize: rect.size.height, weight: .regular)
let bestFont = self.bestFittingFont(for: text, in: rect, fontDescriptor: font.fontDescriptor)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .justified
let attributes = [NSAttributedString.Key.font: bestFont, NSAttributedString.Key.paragraphStyle: paragraphStyle, NSAttributedString.Key.foregroundColor: fontColor]
text.draw(with: rect, options: .usesLineFragmentOrigin, attributes: attributes, context: nil)
}
}
request.recognitionLevel = .accurate
request.usesLanguageCorrection = true
try? requestHandler.perform([request])
} else {
UIGraphicsBeginPDFPageWithInfo(CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height), nil)
UIImageView.init(image:image).layer.render(in: context!)
}
} else {
UIGraphicsBeginPDFPageWithInfo(CGRect(x: 0, y: 0, width: image.size.width, height: image.size.height), nil)
UIImageView.init(image:image).layer.render(in: context!)
}
}
UIGraphicsEndPDFContext();
do {
try pdfData.write(toFile: fileNameGenerateExport, options: .atomic)
} catch {
print("error catched")
}
}
if fileType == "JPG" {
let image = changeImageFromQuality(self.arrayImages[0], dpiQuality: dpiQuality)
guard let data = image.jpegData(compressionQuality: CGFloat(0.5)) else {
NCUtility.sharedInstance.stopActivityIndicator()
NCContentPresenter.shared.messageNotification("_error_", description: "_error_creation_file_", delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.info, errorCode: Int(k_CCErrorCreationFile), forced: true)
return
}
do {
try data.write(to: NSURL.fileURL(withPath: fileNameGenerateExport), options: .atomic)
} catch {
NCUtility.sharedInstance.stopActivityIndicator()
NCContentPresenter.shared.messageNotification("_error_", description: "_error_creation_file_", delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.info, errorCode: Int(k_CCErrorCreationFile), forced: true)
return
}
}
NCUtility.sharedInstance.stopActivityIndicator()
NCManageDatabase.sharedInstance.addMetadata(metadata)
appDelegate.networkingAutoUpload.startProcess()
// Request delete all image scanned
let alertController = UIAlertController(title: "", message: NSLocalizedString("_delete_all_scanned_images_", comment: ""), preferredStyle: .alert)
let actionYes = UIAlertAction(title: NSLocalizedString("_yes_delete_", comment: ""), style: .default) { (action:UIAlertAction) in
let path = CCUtility.getDirectoryScan()!
do {
let filePaths = try FileManager.default.contentsOfDirectory(atPath: path)
for filePath in filePaths {
try FileManager.default.removeItem(atPath: path + "/" + filePath)
}
} catch let error as NSError {
print("Error: \(error.debugDescription)")
}
self.dismiss(animated: true, completion: nil)
}
let actionNo = UIAlertAction(title: NSLocalizedString("_no_delete_", comment: ""), style: .default) { (action:UIAlertAction) in
self.dismiss(animated: true, completion: nil)
}
alertController.addAction(actionYes)
alertController.addAction(actionNo)
self.present(alertController, animated: true, completion:nil)
}
func cancel() {
self.dismiss(animated: true, completion: nil)
}
@objc func changeDestinationFolder(_ sender: XLFormRowDescriptor) {
self.deselectFormRow(sender)
let storyboard = UIStoryboard(name: "NCSelect", bundle: nil)
let navigationController = storyboard.instantiateInitialViewController() as! UINavigationController
let viewController = navigationController.topViewController as! NCSelect
viewController.delegate = self
viewController.hideButtonCreateFolder = false
viewController.includeDirectoryE2EEncryption = true
viewController.includeImages = false
viewController.layoutViewSelect = k_layout_view_move
viewController.selectFile = false
viewController.titleButtonDone = NSLocalizedString("_select_", comment: "")
viewController.type = ""
navigationController.modalPresentationStyle = UIModalPresentationStyle.fullScreen
self.present(navigationController, animated: true, completion: nil)
}
func changeImageFromQuality(_ image: UIImage, dpiQuality: typeDpiQuality) -> UIImage {
let imageWidthInPixels = image.size.width * image.scale
let imageHeightInPixels = image.size.height * image.scale
switch dpiQuality {
case typeDpiQuality.low: // 72 DPI
if imageWidthInPixels > 595 || imageHeightInPixels > 842 {
return CCGraphics.scale(image, to: CGSize(width: 595, height: 842), isAspectRation: true)
}
case typeDpiQuality.medium: // 150 DPI
if imageWidthInPixels > 1240 || imageHeightInPixels > 1754 {
return CCGraphics.scale(image, to: CGSize(width: 1240, height: 1754), isAspectRation: true)
}
case typeDpiQuality.hight: // 200 DPI
if imageWidthInPixels > 1654 || imageHeightInPixels > 2339 {
return CCGraphics.scale(image, to: CGSize(width: 1654, height: 2339), isAspectRation: true)
}
}
return image
}
func changeCompressionImage(_ image: UIImage, dpiQuality: typeDpiQuality) -> UIImage {
var compressionQuality: CGFloat = 0.5
switch dpiQuality {
case typeDpiQuality.low:
compressionQuality = 0.1
case typeDpiQuality.medium:
compressionQuality = 0.5
case typeDpiQuality.hight:
compressionQuality = 0.9
}
guard let data = image.jpegData(compressionQuality: compressionQuality) else { return image }
guard let imageCompressed = UIImage.init(data: data) else { return image }
return imageCompressed
}
func bestFittingFont(for text: String, in bounds: CGRect, fontDescriptor: UIFontDescriptor) -> UIFont {
let constrainingDimension = min(bounds.width, bounds.height)
let properBounds = CGRect(origin: .zero, size: bounds.size)
var attributes: [NSAttributedString.Key: Any] = [:]
let infiniteBounds = CGSize(width: CGFloat.infinity, height: CGFloat.infinity)
var bestFontSize: CGFloat = constrainingDimension
for fontSize in stride(from: bestFontSize, through: 0, by: -1) {
let newFont = UIFont(descriptor: fontDescriptor, size: fontSize)
attributes[.font] = newFont
let currentFrame = text.boundingRect(with: infiniteBounds, options: [.usesLineFragmentOrigin, .usesFontLeading], attributes: attributes, context: nil)
if properBounds.contains(currentFrame) {
bestFontSize = fontSize
break
}
}
// let attributes = [NSAttributedString.Key.font: bestFont, NSAttributedString.Key.paragraphStyle: paragraphStyle, NSAttributedString.Key.foregroundColor: fontColor, NSAttributedString.Key.kern: 10] as [NSAttributedString.Key : Any]
return UIFont(descriptor: fontDescriptor, size: bestFontSize)
}
}
class NCCreateScanDocument : NSObject, ImageScannerControllerDelegate {
@objc static let sharedInstance: NCCreateScanDocument = {
let instance = NCCreateScanDocument()
return instance
}()
let appDelegate = UIApplication.shared.delegate as! AppDelegate
var viewController: UIViewController?
func openScannerDocument(viewController: UIViewController) {
self.viewController = viewController
let scannerVC = ImageScannerController()
scannerVC.imageScannerDelegate = self
self.viewController?.present(scannerVC, animated: true, completion: nil)
}
func imageScannerController(_ scanner: ImageScannerController, didFinishScanningWithResults results: ImageScannerResults) {
let fileName = CCUtility.createFileName("scan.png", fileDate: Date(), fileType: PHAssetMediaType.image, keyFileName: k_keyFileNameMask, keyFileNameType: k_keyFileNameType, keyFileNameOriginal: k_keyFileNameOriginal)!
let fileNamePath = CCUtility.getDirectoryScan() + "/" + fileName
let image: UIImage?
if results.doesUserPreferEnhancedScan {
image = results.enhancedScan?.image
} else {
image = results.croppedScan.image
}
if image != nil {
do {
try image!.pngData()?.write(to: NSURL.fileURL(withPath: fileNamePath))
} catch { }
}
scanner.dismiss(animated: true, completion: {
if self.viewController is DragDropViewController {
(self.viewController as! DragDropViewController).loadImage()
} else {
let storyboard = UIStoryboard(name: "Scan", bundle: nil)
let controller = storyboard.instantiateInitialViewController()!
controller.modalPresentationStyle = UIModalPresentationStyle.pageSheet
self.viewController?.present(controller, animated: true, completion: nil)
}
})
}
func imageScannerControllerDidCancel(_ scanner: ImageScannerController) {
scanner.dismiss(animated: true, completion: nil)
}
func imageScannerController(_ scanner: ImageScannerController, didFailWithError error: Error) {
NCContentPresenter.shared.messageNotification("_error_", description: error.localizedDescription, delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.error, errorCode: Int(k_CCErrorInternalError))
}
}