From 75c3ae6fd17dfcda6c00a029231ca2ae254477cc Mon Sep 17 00:00:00 2001
From: Jos De Graeve <Jos.DeGraeve@apertoso.be>
Date: Thu, 2 Nov 2017 10:04:25 +0100
Subject: [PATCH] Added graphic image support

---
 printer_zpl2/README.rst                       |  1 +
 printer_zpl2/__manifest__.py                  |  2 +-
 printer_zpl2/models/printing_label_zpl2.py    | 26 +++++++++++++++++++
 .../models/printing_label_zpl2_component.py   |  5 ++++
 printer_zpl2/views/printing_label_zpl2.xml    |  5 ++--
 5 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/printer_zpl2/README.rst b/printer_zpl2/README.rst
index 271aec8..cded79e 100644
--- a/printer_zpl2/README.rst
+++ b/printer_zpl2/README.rst
@@ -82,6 +82,7 @@ Contributors
 ------------
 
 * Sylvain Garancher <sylvain.garancher@syleam.fr>
+* Jos De Graeve <Jos.DeGraeve@apertoso.be>
 
 Maintainer
 ----------
diff --git a/printer_zpl2/__manifest__.py b/printer_zpl2/__manifest__.py
index 92b81d1..65fb68d 100644
--- a/printer_zpl2/__manifest__.py
+++ b/printer_zpl2/__manifest__.py
@@ -6,7 +6,7 @@
     'name': 'Printer ZPL II',
     'version': '10.0.1.1.1',
     'category': 'Printer',
-    'author': 'SYLEAM, Odoo Community Association (OCA)',
+    'author': 'SYLEAM, Apertoso NV, Odoo Community Association (OCA)',
     'website': 'http://www.syleam.fr/',
     'license': 'AGPL-3',
     'external_dependencies': {
diff --git a/printer_zpl2/models/printing_label_zpl2.py b/printer_zpl2/models/printing_label_zpl2.py
index 760c72f..9a5fbfc 100644
--- a/printer_zpl2/models/printing_label_zpl2.py
+++ b/printer_zpl2/models/printing_label_zpl2.py
@@ -3,8 +3,11 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 import time
+import base64
 import datetime
+import io
 import logging
+from PIL import Image, ImageOps
 from odoo import api, exceptions, fields, models
 from odoo.tools.translate import _
 from odoo.tools.safe_eval import safe_eval
@@ -117,6 +120,29 @@ class PrintingLabelZpl2(models.Model):
                         zpl2.ARG_COLOR: component.color,
                         zpl2.ARG_ROUNDING: component.rounding,
                     })
+            elif component.component_type == 'graphic':
+                pil_image = Image.open(io.BytesIO(
+                    base64.b64decode(component.graphic_image or data)))
+                if component.width and component.height:
+                    pil_image = pil_image.resize(
+                        (component.width, component.height))
+
+                # Invert the colors
+                if component.reverse_print:
+                    pil_image = ImageOps.invert(pil_image)
+
+                # Rotation (PIL rotates counter clockwise)
+                if component.orientation == zpl2.ORIENTATION_ROTATED:
+                    pil_image = pil_image.transpose(Image.ROTATE_270)
+                elif component.orientation == zpl2.ORIENTATION_INVERTED:
+                    pil_image = pil_image.transpose(Image.ROTATE_180)
+                elif component.orientation == zpl2.ORIENTATION_BOTTOM_UP:
+                    pil_image = pil_image.transpose(Image.ROTATE_90)
+
+                label_data.graphic_field(
+                    component_offset_x, component_offset_y,
+                    pil_image
+                )
             elif component.component_type == 'circle':
                 label_data.graphic_circle(
                     component_offset_x, component_offset_y, {
diff --git a/printer_zpl2/models/printing_label_zpl2_component.py b/printer_zpl2/models/printing_label_zpl2_component.py
index c62cad6..35b4f0c 100644
--- a/printer_zpl2/models/printing_label_zpl2_component.py
+++ b/printer_zpl2/models/printing_label_zpl2_component.py
@@ -34,6 +34,7 @@ class PrintingLabelZpl2Component(models.Model):
             ('text', 'Text'),
             ('rectangle', 'Rectangle / Line'),
             ('circle', 'Circle'),
+            ('graphic', 'Graphic'),
             (zpl2.BARCODE_CODE_11, 'Code 11'),
             (zpl2.BARCODE_INTERLEAVED_2_OF_5, 'Interleaved 2 of 5'),
             (zpl2.BARCODE_CODE_39, 'Code 39'),
@@ -142,3 +143,7 @@ class PrintingLabelZpl2Component(models.Model):
     block_left_margin = fields.Integer(
         string='Left Margin',
         help='Left margin for the second and other lines in the block.')
+    graphic_image = fields.Binary(
+        string='Image', attachment=True,
+        help='This field holds a static image to print. '
+             'If not set, the data field is evaluated.')
diff --git a/printer_zpl2/views/printing_label_zpl2.xml b/printer_zpl2/views/printing_label_zpl2.xml
index 2782d8f..3b32230 100644
--- a/printer_zpl2/views/printing_label_zpl2.xml
+++ b/printer_zpl2/views/printing_label_zpl2.xml
@@ -52,6 +52,7 @@
                             </group>
                             <group>
                                 <field name="data" attrs="{'invisible': [('component_type', 'in', ('rectangle', 'circle'))]}"/>
+                                <field name="graphic_image" attrs="{'invisible': [('component_type', '!=', 'graphic')]}"/>
                                 <field name="sublabel_id" attrs="{'invisible': [('component_type', '!=', 'sublabel')]}"/>
                             </group>
                         </group>
@@ -59,7 +60,7 @@
                             <page string="Format" attrs="{'invisible': [('component_type', '=', ('sublabel'))]}">
                                 <group>
                                     <field name="height"/>
-                                    <field name="width" attrs="{'invisible': [('component_type', 'not in', ('text', 'rectangle', 'circle'))]}"/>
+                                    <field name="width" attrs="{'invisible': [('component_type', 'not in', ('text', 'rectangle', 'circle', 'graphic'))]}"/>
                                     <field name="reverse_print"/>
                                     <field name="orientation" attrs="{'invisible': [('component_type', 'in', ('rectangle', 'circle'))]}"/>
                                     <field name="font" attrs="{'invisible': [('component_type', '!=', 'text')]}"/>
@@ -69,7 +70,7 @@
                                 </group>
                             </page>
                             <!-- Barcode specific arguments -->
-                            <page string="Barcode Format" attrs="{'invisible': [('component_type', 'in', ('text', 'rectangle', 'circle', 'sublabel'))]}">
+                            <page string="Barcode Format" attrs="{'invisible': [('component_type', 'in', ('text', 'rectangle', 'circle', 'sublabel','graphic'))]}">
                                 <group>
                                     <field name="check_digits"/>
                                     <field name="interpretation_line"/>