Merge pull request #140 from PedroJoMa/fix-dynamic-delimitation-fields

Danfe: Fix dynamically adjusts the character limit in the address, following the margin dimensions.

Author: antoniospneto

brazilfiscalreport/danfe/danfe.py

@@ -891,7 +891,11 @@ def _draw_recipient_sender(self):
             DanfeBasicField(
                 w=w_dest_end,
                 description="ENDEREÇO",
-                content=self.long_field(text=dest_end, limit=100),
+                content=self.long_field(
+                    text=dest_end,
+                    limit=w_dest_end,
+                    font_size=self.get_font_size("FONT_SIZE_CONT", True),
+                ),
                 pdf=self,
             )
         )
@@ -1036,7 +1040,11 @@ def _draw_delivery_location(self):
             DanfeBasicField(
                 w=widths["line2"]["endereco"],
                 description="ENDEREÇO",
-                content=self.long_field(text=endereco, limit=100),
+                content=self.long_field(
+                    text=endereco,
+                    limit=widths["line2"]["endereco"],
+                    font_size=self.get_font_size("FONT_SIZE_CONT", True),
+                ),
                 pdf=self,
             )
         )
@@ -1321,15 +1329,24 @@ def _draw_shipping(self):
             BaseFieldInfo(w=30, description="CNPJ / CPF", content=cnpj_cpf),
         ]
 
+        w_transp_mun = 69
+        w_transp_uf = 8
+        w_transp_ie = 30
+        w_transp_ender = block_transporte.w - w_transp_mun - w_transp_uf - w_transp_ie
+
         fields_line2 = [
             BaseFieldInfo(
                 w=0,
                 description="ENDEREÇO",
-                content=self.long_field(text=ender, limit=50),
+                content=self.long_field(
+                    text=ender,
+                    limit=w_transp_ender,
+                    font_size=self.get_font_size("FONT_SIZE_CONT", True),
+                ),
             ),
-            BaseFieldInfo(w=69, description="MUNICÍPIO", content=municipio),
-            BaseFieldInfo(w=8, description="UF", content=uf),
-            BaseFieldInfo(w=30, description="INSCRIÇÃO ESTADUAL", content=ie),
+            BaseFieldInfo(w=w_transp_mun, description="MUNICÍPIO", content=municipio),
+            BaseFieldInfo(w=w_transp_uf, description="UF", content=uf),
+            BaseFieldInfo(w=w_transp_ie, description="INSCRIÇÃO ESTADUAL", content=ie),
         ]
 
         fields_line3 = [

brazilfiscalreport/xfpdf.py

@@ -2,15 +2,34 @@
 
 
 class xFPDF(FPDF):
-    def long_field(self, text="", limit=0):
-        # Take care of long field
-        if not text:
+    def long_field(self, text="", limit=0, font_size=None, font_style=""):
+        if not text or limit <= 0:
             return ""
 
-        while self.get_string_width(text) > limit:
-            # text = text[:-2] + u'\u2026'
-            text = "%s..." % text[:-4].rstrip()
-        return text
+        prev_font = (self.font_family, self.font_style, self.font_size_pt)
+
+        try:
+            if font_size:
+                self.set_font(self.default_font, font_style, font_size)
+
+            safe_limit = limit - 2
+
+            if self.get_string_width(text) <= safe_limit:
+                return text
+
+            words = text.split()
+            while words and self.get_string_width(" ".join(words) + "...") > safe_limit:
+                words.pop()
+
+            if words:
+                return " ".join(words) + "..."
+
+            while text and self.get_string_width(text + "...") > safe_limit:
+                text = text[:-1]
+            return text + "..." if text else ""
+
+        finally:
+            self.set_font(*prev_font)
 
     def text_box(self, text, text_align, h_line, x, y, w, h, border=False):
         if border: