Update qt_gui

Author: yushulx

examples/official/9.x/qt_gui/barcode_manager.py

@@ -18,7 +18,7 @@ This is a cross-platform GUI barcode reader application built with `Python 3`, `
 - **Dynamsoft Barcode Reader**
 
     ```
-    python3 -m pip install dbr
+    python3 -m pip install dynamsoft-capture-vision-bundle
     ```
 
 - [Dynamsoft Barcode SDK License](https://www.dynamsoft.com/customer/license/trialLicense/?product=dcv&package=cross-platform)

examples/official/9.x/qt_gui/template.json

@@ -14,6 +14,7 @@
 from barcode_manager import *
 import os
 import cv2
+import numpy as np
 
 
 class UI_Window(QWidget):
@@ -78,15 +79,13 @@ def __init__(self):
         self.setWindowTitle("Dynamsoft Barcode Reader")
         self.setFixedSize(self.WINDOW_WIDTH, self.WINDOW_HEIGHT)
 
-    # https://stackoverflow.com/questions/1414781/prompt-on-exit-in-pyqt-application
-
     def closeEvent(self, event):
 
         msg = "Close the app?"
         reply = QMessageBox.question(self, 'Message',
-                                     msg, QMessageBox.Yes, QMessageBox.No)
+                                     msg, QMessageBox.StandardButton.Yes, QMessageBox.StandardButton.No)
 
-        if reply == QMessageBox.Yes:
+        if reply == QMessageBox.StandardButton.Yes:
             self.stopCamera()
             event.accept()
         else:
@@ -141,7 +140,7 @@ def openCamera(self):
             return
 
         self._barcodeManager.create_barcode_process()
-        self.timer.start(1000./24)
+        self.timer.start(int(1000./24))
 
     def stopCamera(self):
         self._barcodeManager.destroy_barcode_process()
@@ -151,31 +150,59 @@ def showResults(self, frame, results):
         out = ''
         index = 0
 
-        if results is not None and results[0] is not None:
+        if results is not None:
             thickness = 2
             color = (0, 255, 0)
             out = 'Elapsed time: ' + "{:.2f}".format(results[1]) + 'ms\n\n'
-            for result in results[0]:
-                points = result.localization_result.localization_points
-                out += "Index: " + str(index) + "\n"
-                out += "Barcode format: " + result.barcode_format_string + '\n'
-                out += "Barcode value: " + result.barcode_text + '\n'
-                out += "Bounding box: " + \
-                    str(points[0]) + ' ' + str(points[1]) + ' ' + \
-                    str(points[2]) + ' ' + str(points[3]) + '\n'
-                out += '-----------------------------------\n'
-                index += 1
-
-                cv2.line(frame, points[0], points[1], color, thickness)
-                cv2.line(frame, points[1], points[2], color, thickness)
-                cv2.line(frame, points[2], points[3], color, thickness)
-                cv2.line(frame, points[3], points[0], color, thickness)
-                cv2.putText(frame, result.barcode_text,
-                            points[0], cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 255))
+            
+            if results[0] is not None:
+                items_data = results[0]
+                
+                if isinstance(items_data, list):
+                    for item_data in items_data:
+                        out += "Index: " + str(index) + "\n"
+                        out += "Barcode format: " + item_data['format_string'] + '\n'
+                        out += "Barcode value: " + item_data['text'] + '\n'
+                        out += '-----------------------------------\n'
+                        index += 1
+
+                        points = item_data['points']
+                        pts = np.array(points, np.int32).reshape((-1, 1, 2))
+                        cv2.drawContours(frame, [pts], 0, (0, 255, 0), 2)
+                        cv2.putText(frame, item_data['text'], (points[0][0], points[0][1] - 10),
+                            cv2.FONT_HERSHEY_SIMPLEX, 0.5, color, thickness)
+                else:
+                    result = results[0]
+                    items = result.get_items()
+                    for item in items:
+                        location = item.get_location()
+                        x1 = location.points[0].x
+                        y1 = location.points[0].y
+                        x2 = location.points[1].x
+                        y2 = location.points[1].y
+                        x3 = location.points[2].x
+                        y3 = location.points[2].y
+                        x4 = location.points[3].x
+                        y4 = location.points[3].y
+
+                        out += "Index: " + str(index) + "\n"
+                        out += "Barcode format: " + item.get_format_string() + '\n'
+                        out += "Barcode value: " + item.get_text() + '\n'
+                        out += '-----------------------------------\n'
+                        index += 1
+
+                        pts = np.array([(x1, y1), (x2, y2), (x3, y3), (x4, y4)], np.int32).reshape((-1, 1, 2))
+                        cv2.drawContours(frame, [pts], 0, (0, 255, 0), 2)
+                        cv2.putText(frame, item.get_text(), (x1, y1 - 10),
+                            cv2.FONT_HERSHEY_SIMPLEX, 0.5, color, thickness)
+            else:
+                out += "No barcodes detected\n"
+        else:
+            out = "Waiting for scanner results...\n"
 
         frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
         image = QImage(
-            frame, frame.shape[1], frame.shape[0], frame.strides[0], QImage.Format_RGB888)
+            frame, frame.shape[1], frame.shape[0], frame.strides[0], QImage.Format.Format_RGB888)
         pixmap = QPixmap.fromImage(image)
         pixmap = self.resizeImage(pixmap)
         self.label.setPixmap(pixmap)
@@ -198,10 +225,10 @@ def main():
     try:
         with open(sys.argv[1]) as f:
             license = f.read()
-            BarcodeReader.init_license(
+            LicenseManager.init_license(
                 license)
     except:
-        BarcodeReader.init_license(
+        LicenseManager.init_license(
             "DLS2eyJoYW5kc2hha2VDb2RlIjoiMjAwMDAxLTE2NDk4Mjk3OTI2MzUiLCJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSIsInNlc3Npb25QYXNzd29yZCI6IndTcGR6Vm05WDJrcEQ5YUoifQ==")
 
     app = QApplication(sys.argv)