If a font_size is specified in the configuration, this fixed font siz…

…e is used.

If the font_size is not specified or if the value = 0, then the previous dynamic behavior will continue to be executed.

Issue netbox-community#11 from the original is related to the topic.

README.md

@@ -74,6 +74,7 @@ PLUGINS_CONFIG = {
         'with_text': True,
         'text_fields': ['name', 'serial'],
         'font': 'ArialMT',
+        'font_size': 12, # If the value is 0 or the line does not exist, then the text is automatically adjusted
         'custom_text': 'Property of SomeCompany\ntel.8.800333554-CALL',
         'text_location': 'up',
         'qr_version': 1,

netbox_qrcode/template_content.py

@@ -60,7 +60,7 @@ def x_page(self):
                 if custom_text:
                     text.append(custom_text)
                 text = '\n'.join(text)
-            text_img = get_qr_text(qr_img.size, text, config.get('font'))
+            text_img = get_qr_text(qr_img.size, text, config.get('font'), config.get('font_size', 0))
             qr_with_text = get_concat(qr_img, text_img, config.get('text_location', 'right'))
 
             img = get_img_b64(qr_with_text)

netbox_qrcode/utilities.py

@@ -28,11 +28,29 @@ def get_img_b64(img):
     return str(base64.b64encode(stream.getvalue()), encoding='ascii')
 
 
-def get_qr_text(max_size, text, font='TahomaBold'):
-    font_size = 56
+def get_qr_text(max_size, text, font='TahomaBold', font_size=0):
+
     tmpimg = Image.new('L', max_size, 'white')
     text_too_large = True
-    while text_too_large:
+
+    #If no Font Size in Config File, then Match the text to the QR Code
+    if font_size == 0:
+
+        font_size = 56
+
+        while text_too_large:
+            file_path = resource_stream(__name__, 'fonts/{}.ttf'.format(font))
+            try:
+                fnt = ImageFont.truetype(file_path, font_size)
+            except Exception:
+                fnt = ImageFont.load_default()
+
+            draw = ImageDraw.Draw(tmpimg)
+            left, top, w, h = draw.textbbox((0,0), text=text, font=fnt)
+            if w < max_size[0] - 4 and h < max_size[1] - 4:
+                text_too_large = False
+            font_size -= 1
+    else:
         file_path = resource_stream(__name__, 'fonts/{}.ttf'.format(font))
         try:
             fnt = ImageFont.truetype(file_path, font_size)
@@ -41,9 +59,6 @@ def get_qr_text(max_size, text, font='TahomaBold'):
 
         draw = ImageDraw.Draw(tmpimg)
         left, top, w, h = draw.textbbox((0, 0), text=text, font=fnt)
-        if w < max_size[0] - 4 and h < max_size[1] - 4:
-            text_too_large = False
-        font_size -= 1
 
     img = Image.new('L', (w, h), 'white')
     draw = ImageDraw.Draw(img)