From 84009228dc5a37aacde9355bc5e6d5fde31123b0 Mon Sep 17 00:00:00 2001
From: David <perssond9@gmail.com>
Date: Tue, 26 Mar 2024 16:54:38 +0100
Subject: [PATCH] feat: make the print legend respect theme visibility of
 thematicstyling layers (#1969)

---
 src/controls/print/print-legend.js | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/controls/print/print-legend.js b/src/controls/print/print-legend.js
index 19c38bc6d..514174b3a 100644
--- a/src/controls/print/print-legend.js
+++ b/src/controls/print/print-legend.js
@@ -170,11 +170,14 @@ const LayerRow = function LayerRow(options) {
       return getTitleWithIcon(title, getStyleIcon(style[0]));
     }
 
+    const hasThematicStyle = (layer.get('thematicStyling') === true);
     const children = style.map((thisStyle, index) => {
-      if (!isHidden(thisStyle)) {
-        const styleIcon = getStyleIcon(thisStyle);
-        const rowTitle = thisStyle[0].label ? thisStyle[0].label : index + 1;
-        return getListItem(rowTitle, styleIcon);
+      if (!(isHidden(thisStyle))) {
+        if ((!(hasThematicStyle)) || (!(thisStyle[0]?.visible === false))) {
+          const styleIcon = getStyleIcon(thisStyle);
+          const rowTitle = thisStyle[0].label ? thisStyle[0].label : index + 1;
+          return getListItem(rowTitle, styleIcon);
+        }
       }
       return '';
     });
@@ -205,11 +208,16 @@ const LayerRow = function LayerRow(options) {
       return getTitleWithIcon(title, icon);
     }
 
-    const rules = json.Legend[0].rules.map((rule, index) => {
-      const ruleImageUrl = `${getLegendGraphicUrl}&rule=${rule.name}`;
-      const rowTitle = rule.title ? rule.title : index + 1;
-      return getListItem(rowTitle, ruleImageUrl, true);
-    });
+    const thematicStyle = (layer.get('thematicStyling') === true) ? viewer.getStyle(layer.get('styleName')) : undefined;
+    const rules = json.Legend[0].rules.reduce((okRules, rule, index) => {
+      if (!(layer.get('thematicStyling')) || thematicStyle[0]?.thematic[index]?.visible) {
+        const ruleImageUrl = `${getLegendGraphicUrl}&rule=${rule.name}`;
+        const rowTitle = rule.title ? rule.title : index + 1;
+        okRules.push(getListItem(rowTitle, ruleImageUrl, true));
+      }
+      return okRules;
+    }, []);
+
     return getTitleWithChildren(title, rules);
   };