From 2b770623d550ececd802b4efcd99454101b5015e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Sun, 16 Feb 2020 10:02:20 +0100
Subject: [PATCH] dataviz: truncate horizontal bar labels in narrow graphs
 (#39920)

---
 combo/apps/dataviz/models.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/combo/apps/dataviz/models.py b/combo/apps/dataviz/models.py
index 88a81e2d..756cafe2 100644
--- a/combo/apps/dataviz/models.py
+++ b/combo/apps/dataviz/models.py
@@ -26,6 +26,7 @@ from django.conf import settings
 from jsonfield import JSONField
 from requests.exceptions import HTTPError
 import pygal
+import pygal.util
 
 from combo.data.models import CellBase
 from combo.data.library import register_cell_class
@@ -272,6 +273,9 @@ class ChartNgCell(CellBase):
                 chart.add(serie_label, values)
             if width and width < 500:
                 chart.legend_at_bottom = True
+                if self.chart_type == 'horizontal-bar':
+                    # truncate labels
+                    chart.x_labels = [pygal.util.truncate(x, 15) for x in chart.x_labels]
         else:
             # pie, create a serie by data, to get different colours
             values = data