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add getBitmap method for iOS
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@xulihang
xulihang committed Dec 8, 2023
1 parent 00f53f6 commit a390b7c
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Showing 3 changed files with 65 additions and 43 deletions.
Empty file modified ios/Plugin/CameraPreviewPlugin.h
100755 → 100644
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Empty file modified ios/Plugin/CameraPreviewPlugin.m
100755 → 100644
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108 changes: 65 additions & 43 deletions ios/Plugin/CameraPreviewPlugin.swift
100755 → 100644
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Original file line number Diff line number Diff line change
Expand Up @@ -7,24 +7,24 @@ import DynamsoftCameraEnhancer
*/
@objc(CameraPreviewPlugin)
public class CameraPreviewPlugin: CAPPlugin {
var dce:DynamsoftCameraEnhancer! = nil
static var dce:DynamsoftCameraEnhancer! = nil
var dceView:DCECameraView! = nil
@objc func initialize(_ call: CAPPluginCall) {
// Initialize a camera view for previewing video.
DispatchQueue.main.sync {
dceView = DCECameraView.init(frame: (bridge?.viewController?.view.bounds)!)
self.webView!.superview!.insertSubview(dceView, belowSubview: self.webView!)
dce = DynamsoftCameraEnhancer.init(view: dceView)
dce.setResolution(EnumResolution.EnumRESOLUTION_720P)
CameraPreviewPlugin.dce = DynamsoftCameraEnhancer.init(view: dceView)
CameraPreviewPlugin.dce.setResolution(EnumResolution.EnumRESOLUTION_720P)
}
call.resolve()
}

@objc func startCamera(_ call: CAPPluginCall) {
makeWebViewTransparent()
if dce != nil {
if CameraPreviewPlugin.dce != nil {
DispatchQueue.main.sync {
dce.open()
CameraPreviewPlugin.dce.open()
triggerOnPlayed()
}
}else{
Expand All @@ -50,14 +50,14 @@ public class CameraPreviewPlugin: CAPPlugin {
}

@objc func toggleTorch(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
DispatchQueue.main.sync {
if call.getBool("on", true){
dce.turnOnTorch()
CameraPreviewPlugin.dce.turnOnTorch()
} else{
dce.turnOffTorch()
CameraPreviewPlugin.dce.turnOffTorch()
}
}
call.resolve()
Expand All @@ -66,110 +66,110 @@ public class CameraPreviewPlugin: CAPPlugin {

@objc func stopCamera(_ call: CAPPluginCall) {
restoreWebViewBackground()
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
DispatchQueue.main.sync {
dce.close()
CameraPreviewPlugin.dce.close()
}
call.resolve()
}
}

@objc func resumeCamera(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
dce.resume()
CameraPreviewPlugin.dce.resume()
call.resolve()
}
}

@objc func pauseCamera(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
dce.pause()
CameraPreviewPlugin.dce.pause()
call.resolve()
}
}

@objc func setResolution(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
let res = call.getInt("resolution") ?? -1
NSLog("Resolution: %d", res)

if res != -1 {
let resolution = EnumResolution.init(rawValue: res)
dce.setResolution(resolution!)
CameraPreviewPlugin.dce.setResolution(resolution!)
triggerOnPlayed()
}
call.resolve()
}
}

@objc func getResolution(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
var ret = PluginCallResultData()
let res = dce.getResolution();
dce.getResolution()
let res = CameraPreviewPlugin.dce.getResolution();
CameraPreviewPlugin.dce.getResolution()
print("res: "+res)
ret["resolution"] = res
call.resolve(ret)
}
}

@objc func triggerOnPlayed() {
if (dce != nil) {
if (CameraPreviewPlugin.dce != nil) {
var ret = PluginCallResultData()
let res = dce.getResolution()
let res = CameraPreviewPlugin.dce.getResolution()
ret["resolution"] = res
print("trigger on played")
notifyListeners("onPlayed", data: ret)
}
}

@objc func getAllCameras(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
var ret = PluginCallResultData()
let array = NSMutableArray();
array.addObjects(from: dce.getAllCameras())
array.addObjects(from: CameraPreviewPlugin.dce.getAllCameras())
ret["cameras"] = array
call.resolve(ret)
}
}

@objc func getSelectedCamera(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
var ret = PluginCallResultData()
ret["selectedCamera"] = dce.getSelectedCamera()
ret["selectedCamera"] = CameraPreviewPlugin.dce.getSelectedCamera()
call.resolve(ret)
}
}

@objc func selectCamera(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
let cameraID = call.getString("cameraID") ?? ""
if cameraID != "" {
try? dce.selectCamera(cameraID)
try? CameraPreviewPlugin.dce.selectCamera(cameraID)
triggerOnPlayed()
}
call.resolve()
}
}

@objc func setScanRegion(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
let region = call.getObject("region")
Expand All @@ -179,29 +179,29 @@ public class CameraPreviewPlugin: CAPPlugin {
scanRegion.regionLeft = region?["left"] as! Int
scanRegion.regionRight = region?["right"] as! Int
scanRegion.regionMeasuredByPercentage = region?["measuredByPercentage"] as! Int
try? dce.setScanRegion(scanRegion)
try? CameraPreviewPlugin.dce.setScanRegion(scanRegion)
call.resolve()
}
}

@objc func setZoom(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
let factor:CGFloat = CGFloat(call.getFloat("factor") ?? 1.0)
dce.setZoom(factor)
CameraPreviewPlugin.dce.setZoom(factor)
call.resolve()
}
}

@objc func setFocus(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
let x = call.getFloat("x", -1.0);
let y = call.getFloat("y", -1.0);
if x != -1.0 && y != -1.0 {
dce.setFocus(CGPoint(x: CGFloat(x), y: CGFloat(y)))
CameraPreviewPlugin.dce.setFocus(CGPoint(x: CGFloat(x), y: CGFloat(y)))
}
call.resolve()
}
Expand All @@ -212,11 +212,11 @@ public class CameraPreviewPlugin: CAPPlugin {
}

@objc func isOpen(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
var ret = PluginCallResultData()
if dce.getCameraState() == EnumCameraState.EnumCAMERA_STATE_OPENED {
if CameraPreviewPlugin.dce.getCameraState() == EnumCameraState.EnumCAMERA_STATE_OPENED {
ret["isOpen"] = true
} else {
ret["isOpen"] = false
Expand All @@ -225,23 +225,45 @@ public class CameraPreviewPlugin: CAPPlugin {
}
}

@objc static func getBitmap() -> UIImage? {
if (CameraPreviewPlugin.dce == nil){
return nil
}else{
let frame = CameraPreviewPlugin.dce.getFrameFromBuffer(true)
var ret = PluginCallResultData()
if let img = frame.toUIImage() {
var cropped:UIImage
if frame.isCropped {
cropped = croppedUIImage(image: img, region: CameraPreviewPlugin.dce.getScanRegion(),degree: frame.orientation)
} else {
cropped = img
}
let rotated = rotatedUIImage(image: cropped, degree: frame.orientation)
let normalized = normalizedImage(rotated);
return normalized
}else{
return nil
}
}
}

@objc func takeSnapshot(_ call: CAPPluginCall) {
if (dce == nil){
if (CameraPreviewPlugin.dce == nil){
call.reject("DCE not initialized")
}else{
let quality = call.getInt("quality",85)
let frame = dce.getFrameFromBuffer(true)
let frame = CameraPreviewPlugin.dce.getFrameFromBuffer(true)

var ret = PluginCallResultData()
if let img = frame.toUIImage() {
var cropped:UIImage
if frame.isCropped {
cropped = croppedUIImage(image: img, region: dce.getScanRegion(),degree: frame.orientation)
cropped = CameraPreviewPlugin.croppedUIImage(image: img, region: CameraPreviewPlugin.dce.getScanRegion(),degree: frame.orientation)
} else {
cropped = img
}
let rotated = rotatedUIImage(image: cropped, degree: frame.orientation)
let normalized = normalizedImage(rotated);
let rotated = CameraPreviewPlugin.rotatedUIImage(image: cropped, degree: frame.orientation)
let normalized = CameraPreviewPlugin.normalizedImage(rotated);
let base64 = getBase64FromImage(image: normalized, quality: CGFloat(quality/100))
ret["base64"] = base64
call.resolve(ret)
Expand All @@ -251,7 +273,7 @@ public class CameraPreviewPlugin: CAPPlugin {
}
}

func rotatedUIImage(image:UIImage, degree: Int) -> UIImage {
static func rotatedUIImage(image:UIImage, degree: Int) -> UIImage {
var rotatedImage = UIImage()
switch degree
{
Expand All @@ -265,7 +287,7 @@ public class CameraPreviewPlugin: CAPPlugin {
return rotatedImage
}

func croppedUIImage(image:UIImage, region:iRegionDefinition, degree: Int) -> UIImage {
static func croppedUIImage(image:UIImage, region:iRegionDefinition, degree: Int) -> UIImage {
let cgImage = image.cgImage
let imgWidth = Double(cgImage!.width)
let imgHeight = Double(cgImage!.height)
Expand Down Expand Up @@ -326,7 +348,7 @@ public class CameraPreviewPlugin: CAPPlugin {
return image
}

func normalizedImage(_ image:UIImage) -> UIImage {
static func normalizedImage(_ image:UIImage) -> UIImage {
if image.imageOrientation == UIImage.Orientation.up {
return image
}
Expand Down

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