Webgui: user definable menu implemented

webgui/lib/svg.inc

@@ -1,7 +1,7 @@
 <?php
 /******************************************************************************
  * YMS - Yacht Management Software
- * Copyright (C) 2024 Thomas Hooge
+ * Copyright (C) 2024-2026 Thomas Hooge
  * 
  * SPDX-License-Identifier: WTFPL
  ******************************************************************************
@@ -10,8 +10,49 @@
 
 // ========== SVG-FUNCTIONS ===================================================
 
+function create_shapeindex($shapeindexfile) {
+    // an existing index file will be overwritten
+    global $g_shapedir;
+    foreach (glob($g_shapedir.'/*.svg') as $f) {
+        $fh = fopen($f, 'r');
+        $fname = basename($f);
+        // try to read metadata from top of svg file
+        $header = fread($fh, 1024);
+        if (preg_match('/<title[^>]*>(.*?)<\/title>/is', $header, $match)) {
+            $title = trim($match[1]);
+        } else {
+            $title = $fname;
+        }
+        $shapeindex[$fname] = $title;
+        fclose($fh);
+    }
+    $json = json_encode($shapeindex, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
+    file_put_contents($shapeindexfile, $json);
+    return $shapeindex;
+}
+
+function get_shapeindex() {
+    global $g_doc_basepath;
+    $shapeindex = [];
+    $shapeindexfile = $g_doc_basepath . '/shapeindex.json';
+    if (!file_exists($shapeindexfile)) {
+        $shapeindex = create_shapeindex($shapeindexfile);
+    } else {
+        // check if shapeindex needs refresh (older than one day)
+        if (time() - filemtime($shapeindexfile) > 86400) {
+            $shapeindex = create_shapeindex($shapeindexfile);
+        } else {
+            // read svg metadata from existing file
+            $json = file_get_contents($shapeindexfile);
+            $shapeindex = json_decode($json, true);
+            if (json_last_error() !== JSON_ERROR_NONE) {
+                // some kind of error: just recreate
+                $shapeindex = create_shapeindex($shapeindexfile);
+            }
+        }
+    }
+    return $shapeindex;
+}
+
 function svg_create_box($cx, $cy, $w, $h, $fg, $bg) {
-
-
-
-}
+}