Merge pull request #23 from maresb/fix-gui-barcode

Fix barcodes in GUI

Author: maresb

src/labelle/gui/q_label_widgets.py

@@ -380,7 +380,7 @@ def render_engine_impl(self):
                 font_file_name=self.font_style.currentData(),
                 frame_width_px=self.frame_width_px.value(),
                 font_size_ratio=self.font_size.value() / 100.0,
-                align=self.align.currentText(),
+                align=Direction(self.align.currentText()),
             )
         else:
             render_engine = BarcodeRenderEngine(

src/labelle/lib/constants.py

@@ -73,7 +73,7 @@
 class BarcodeType(str, Enum):
     CODE128 = "code128"
     CODE39 = "code39"
-    CODEBAR = "codebar"
+    CODABAR = "codabar"
     EAN = "ean"
     EAN13 = "ean13"
     EAN13_GUARD = "ean13-guard"

src/labelle/lib/render_engines/barcode.py

@@ -25,10 +25,15 @@ def __init__(self, content: str, barcode_type: str | None):
         self.barcode_type = barcode_type or DEFAULT_BARCODE_TYPE
 
     def render(self, context: RenderContext) -> Image.Image:
-        code = barcode_module.get(
-            self.barcode_type, self.content, writer=BarcodeImageWriter()
-        )
+        if self.barcode_type == "code128" and self.content == "":
+            # An exception is raised on the empty string. Since this is
+            # the default code, we really don't want to trigger a popup
+            # in the GUI before the user entered a barcode.
+            self.content = " "
         try:
+            code = barcode_module.get(
+                self.barcode_type, self.content, writer=BarcodeImageWriter()
+            )
             bitmap = code.render(
                 {
                     "font_size": 0,