[IMP] Add QRcode in printer_zpl2 module

printer_zpl2/models/printing_label_zpl2.py

@@ -158,6 +158,10 @@ class PrintingLabelZpl2(models.Model):
                     label_offset_x=component_offset_x,
                     label_offset_y=component_offset_y)
             else:
+                if component.component_type == zpl2.BARCODE_QR_CODE:
+                    # Adding Control Arguments to QRCode data Label
+                    data = 'MM,A{}'.format(data)
+
                 barcode_arguments = dict([
                     (field_name, component[field_name])
                     for field_name in [
@@ -172,6 +176,10 @@ class PrintingLabelZpl2(models.Model):
                         zpl2.ARG_TRUNCATE,
                         zpl2.ARG_MODULE_WIDTH,
                         zpl2.ARG_BAR_WIDTH_RATIO,
+                        zpl2.ARG_MODEL,
+                        zpl2.ARG_MAGNIFICATION_FACTOR,
+                        zpl2.ARG_ERROR_CORRECTION,
+                        zpl2.ARG_MASK_VALUE,
                     ]
                 ])
                 label_data.barcode_data(

printer_zpl2/models/printing_label_zpl2_component.py

@@ -44,6 +44,7 @@ class PrintingLabelZpl2Component(models.Model):
             (zpl2.BARCODE_UPC_E, 'UPC-E'),
             (zpl2.BARCODE_CODE_128, 'Code 128'),
             (zpl2.BARCODE_EAN_13, 'EAN-13'),
+            (zpl2.BARCODE_QR_CODE, 'QR Code'),
             ('sublabel', 'Sublabel'),
         ], string='Type', required=True, default='text', oldname='type',
         help='Type of content, simple text or barcode.')
@@ -98,6 +99,23 @@ class PrintingLabelZpl2Component(models.Model):
     rows_count = fields.Integer(help='Number of rows to encode.')
     truncate = fields.Boolean(
         help='Check if you want to truncate the barcode.')
+    model = fields.Selection(
+        selection=[
+            (zpl2.MODEL_ORIGINAL, 'Original'),
+            (zpl2.MODEL_ENHANCED, 'Enhanced'),
+        ], default=zpl2.MODEL_ENHANCED,
+        help='Barcode model, used by some barcode types like QR Code.')
+    magnification_factor = fields.Integer(
+        default=1, help='Magnification Factor, from 1 to 10.')
+    error_correction = fields.Selection(
+        selection=[
+            (zpl2.ERROR_CORRECTION_ULTRA_HIGH, 'Ultra-high Reliability Level'),
+            (zpl2.ERROR_CORRECTION_HIGH, 'High Reliability Level'),
+            (zpl2.ERROR_CORRECTION_STANDARD, 'Standard Level'),
+            (zpl2.ERROR_CORRECTION_HIGH_DENSITY, 'High Density Level'),
+        ], required=True, default=zpl2.ERROR_CORRECTION_HIGH,
+        help='Error correction for some barcode types like QR Code.')
+    mask_value = fields.Integer(default=7, help='Mask Value, from 0 to 7.')
     data = fields.Char(
         size=256, default='""', required=True,
         help='Data to print on this component. Resource values can be '

printer_zpl2/tests/test_printing_label_zpl2.py

@@ -939,3 +939,38 @@ class TestPrintingLabelZpl2(TransactionCase):
             '^JUR\n'
             # Label end
             '^XZ'.format(contents=data))
+
+    def test_qrcode_barcode_label_contents(self):
+        """ Check contents of a qr code barcode label """
+        label = self.new_label()
+        data = 'Some text'
+        self.new_component({
+            'label_id': label.id,
+            'component_type': 'qr_code',
+            'data': '"' + data + '"',
+        })
+        contents = label._generate_zpl2_data(self.printer)
+        self.assertEqual(
+            contents,
+            # Label start
+            '^XA\n'
+            # Print width
+            '^PW480\n'
+            # UTF-8 encoding
+            '^CI28\n'
+            # Label position
+            '^LH10,10\n'
+            # Barcode default format
+            '^BY2,3.0'
+            # Component position
+            '^FO10,10'
+            # Component format
+            '^BQN,2,1,Q,7'
+            # Component contents
+            '^FDMM,A{contents}'
+            # Component end
+            '^FS\n'
+            # Recall last saved parameters
+            '^JUR\n'
+            # Label end
+            '^XZ'.format(contents=data))

printer_zpl2/views/printing_label_zpl2.xml

@@ -57,7 +57,7 @@
                             </group>
                         </group>
                         <notebook colspan="4">
-                            <page string="Format" attrs="{'invisible': [('component_type', '=', ('sublabel'))]}">
+                            <page string="Format" attrs="{'invisible': [('component_type', 'in', ('sublabel', 'qr_code'))]}">
                                 <group>
                                     <field name="height"/>
                                     <field name="width" attrs="{'invisible': [('component_type', 'not in', ('text', 'rectangle', 'circle', 'graphic'))]}"/>
@@ -70,7 +70,7 @@
                                 </group>
                             </page>
                             <!-- Barcode specific arguments -->
-                            <page string="Barcode Format" attrs="{'invisible': [('component_type', 'in', ('text', 'rectangle', 'circle', 'sublabel','graphic'))]}">
+                            <page string="Barcode Format" attrs="{'invisible': [('component_type', 'in', ('text', 'rectangle', 'circle', 'sublabel', 'graphic', 'qr_code'))]}">
                                 <group>
                                     <field name="check_digits"/>
                                     <field name="interpretation_line"/>
@@ -83,6 +83,15 @@
                                     <field name="truncate"/>
                                 </group>
                             </page>
+                            <!-- 2D Barcode arguments -->
+                            <page string="2D Barcode Arguments" attrs="{'invisible': [('component_type', '!=', 'qr_code')]}">
+                                <group>
+                                    <field name="model"/>
+                                    <field name="magnification_factor"/>
+                                    <field name="error_correction"/>
+                                    <field name="mask_value"/>
+                                </group>
+                            </page>
                             <!-- Text block specific arguments -->
                             <page string="Text Block Format" attrs="{'invisible': ['|', ('component_type', '!=', 'text'), ('in_block', '=', False)]}">
                                 <group>