From 43cd7e5c575997abbd38ce196d8004f1141661fb Mon Sep 17 00:00:00 2001
From: Nicolas Boisteault <nboisteault@3liz.com>
Date: Tue, 12 Sep 2023 17:35:05 +0200
Subject: [PATCH] Redlining: print labels w/ given size (#3876)

Note: rotation does not work. Is it a QGIS bug?
---
 assets/src/components/Print.js | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/assets/src/components/Print.js b/assets/src/components/Print.js
index 6513d212af..74527dd35d 100644
--- a/assets/src/components/Print.js
+++ b/assets/src/components/Print.js
@@ -283,8 +283,13 @@ export default class Print extends HTMLElement {
         const formatWKT = new WKT();
         const highlightGeom = [];
         const highlightSymbol = [];
+        const highlightLabelString = [];
+        const highlightLabelSize = [];
+        const highlightLabelBufferColor = [];
+        const highlightLabelBufferSize = [];
+        const highlightLabelRotation = [];
 
-        mainLizmap.digitizing.featureDrawn?.map((featureDrawn, index) => {
+        mainLizmap.digitizing.featureDrawn?.forEach((featureDrawn, index) => {
 
             // Translate circle coords to WKT
             if (featureDrawn.getGeometry().getType() === 'Circle') {
@@ -303,6 +308,21 @@ export default class Print extends HTMLElement {
             }
 
             highlightSymbol.push(mainLizmap.digitizing.getFeatureDrawnSLD(index));
+
+            // Labels
+            const label = featureDrawn.get('text') ? featureDrawn.get('text') : ' ';
+            highlightLabelString.push(label);
+            // Font size is 10px by default (https://github.com/openlayers/openlayers/blob/v8.1.0/src/ol/style/Text.js#L30)
+            let scale = featureDrawn.get('scale');
+            if (scale) {
+                scale = scale * 10;
+            }
+            highlightLabelSize.push(scale);
+
+            highlightLabelBufferColor.push('#FFFFFF');
+            highlightLabelBufferSize.push(1.5);
+
+            highlightLabelRotation.push(featureDrawn.get('rotation'));
         });
 
         if (highlightGeom.length && highlightSymbol.length) {
@@ -310,6 +330,14 @@ export default class Print extends HTMLElement {
             wmsParams[this._mainMapID + ':HIGHLIGHT_SYMBOL'] = highlightSymbol.join(';');
         }
 
+        if (!highlightLabelString.every(label => label === ' ')){
+            wmsParams[this._mainMapID + ':HIGHLIGHT_LABELSTRING'] = highlightLabelString.join(';');
+            wmsParams[this._mainMapID + ':HIGHLIGHT_LABELSIZE'] = highlightLabelSize.join(';');
+            wmsParams[this._mainMapID + ':HIGHLIGHT_LABELBUFFERCOLOR'] = highlightLabelBufferColor.join(';');
+            wmsParams[this._mainMapID + ':HIGHLIGHT_LABELBUFFERSIZE'] = highlightLabelBufferSize.join(';');
+            wmsParams[this._mainMapID + ':HIGHLIGHT_LABEL_ROTATION'] = highlightLabelRotation.join(';');
+        }
+
         // Grid
         if(this._gridX){
             wmsParams[this._mainMapID + ':GRID_INTERVAL_X'] = this._gridX;