From 8bf296277e6eb05d3a1f6f3e240129ed8588760b Mon Sep 17 00:00:00 2001
From: bozmir <bozmir@hotmail.com>
Date: Wed, 9 Oct 2024 17:30:13 +0200
Subject: [PATCH] added default transparency unless predefined in sourceurl &
 little refactoring

---
 .../Scripts/CartesianTiles/WMSTileDataLayer.cs  | 17 +++--------------
 .../DataTypeAdapters/WMSImportAdapter.cs        | 15 +++++++++------
 .../Layers/LayerTypes/WMSLayerGameObject.cs     | 13 +++++++++++--
 3 files changed, 23 insertions(+), 22 deletions(-)

diff --git a/Assets/Scripts/CartesianTiles/WMSTileDataLayer.cs b/Assets/Scripts/CartesianTiles/WMSTileDataLayer.cs
index 119ad3e6..36631abd 100644
--- a/Assets/Scripts/CartesianTiles/WMSTileDataLayer.cs
+++ b/Assets/Scripts/CartesianTiles/WMSTileDataLayer.cs
@@ -12,6 +12,9 @@ namespace Netherlands3D.Twin
 {
     public class WMSTileDataLayer : ImageProjectionLayer
     {
+        //this gives the requesting url the extra param to set transparancy enabled by default
+        public bool TransparencyEnabled = true;
+
         private string wmsUrl = "";
         public string WmsUrl
         {
@@ -52,7 +55,6 @@ protected override IEnumerator DownloadDataAndGenerateTexture(TileChange tileCha
             var bboxValue = $"{tileChange.X},{tileChange.Y},{(tileChange.X + tileSize)},{(tileChange.Y + tileSize)}";
             string url = wmsUrl.Replace("{0}", bboxValue);
 
-            //var webRequest = UnityWebRequest.Get(url);
             UnityWebRequest webRequest = UnityWebRequestTexture.GetTexture(url);
             tile.runningWebRequest = webRequest;
             yield return webRequest.SendWebRequest();
@@ -65,19 +67,8 @@ protected override IEnumerator DownloadDataAndGenerateTexture(TileChange tileCha
             }
             else
             {
-                //byte[] imageData = webRequest.downloadHandler.data;
-                //Texture2D tex = new Texture2D(2, 2, TextureFormat.RGBA32, false);
-                //tex.LoadImage(imageData);
-                ////tex.LoadRawTextureData(imageData);
-                //tex.Apply();
-
                 Texture texture = ((DownloadHandlerTexture)webRequest.downloadHandler).texture;
-
-                ////Texture myTexture = DownloadHandlerTexture.GetContent(webRequest);
                 Texture2D tex = texture as Texture2D;
-
-                Color[] pixels = tex.GetPixels();
-
                 if (tile.gameObject.TryGetComponent<TextureProjectorBase>(out var projector))
                 {
                     projector.SetSize(tileSize, tileSize, tileSize);
@@ -90,8 +81,6 @@ protected override IEnumerator DownloadDataAndGenerateTexture(TileChange tileCha
                         textureDecalProjector.SetSize(decalProjector.size.x, decalProjector.size.y, ProjectorMinDepth);
 
                 }
-
-
                 ClearPreviousTexture(tile);
                 callback(tileChange);
             }
diff --git a/Assets/Scripts/Layers/Adapters/DataTypeAdapters/WMSImportAdapter.cs b/Assets/Scripts/Layers/Adapters/DataTypeAdapters/WMSImportAdapter.cs
index 1907d1b6..f7f83f17 100644
--- a/Assets/Scripts/Layers/Adapters/DataTypeAdapters/WMSImportAdapter.cs
+++ b/Assets/Scripts/Layers/Adapters/DataTypeAdapters/WMSImportAdapter.cs
@@ -71,16 +71,17 @@ public void Execute(LocalFile localFile)
 
         private void AddWMSLayer(WMS.WMSLayerQueryParams layer, string sourceUrl, FolderLayer folderLayer)
         {
-            Debug.Log("Adding WMS layer: " + layer.name);
-            // Create a layerType URL for the specific layerType
-            UriBuilder uriBuilder = CreateLayerUri(layer, sourceUrl);
-            var getLayerTypeUrl = uriBuilder.Uri.ToString();
-            string finalUrl = Uri.UnescapeDataString(getLayerTypeUrl);
-
             //Spawn a new WMS layer
             WMSLayerGameObject newLayer = Instantiate(layerPrefab);
             newLayer.LayerData.SetParent(folderLayer);
             newLayer.Name = layer.name;
+
+            Debug.Log("Adding WMS layer: " + layer.name);
+            // Create a layerType URL for the specific layerType
+            UriBuilder uriBuilder = CreateLayerUri(layer, sourceUrl);
+            var getLayerTypeUrl = uriBuilder.Uri.ToString();
+            string finalUrl = Uri.UnescapeDataString(getLayerTypeUrl);            
+            
             newLayer.SetURL(finalUrl);
         }
 
@@ -115,6 +116,8 @@ private UriBuilder CreateLayerUri(WMS.WMSLayerQueryParams layer, string sourceUr
             {
                 uriBuilder.AddQueryParameter("format", "image/png");
             }
+            if (!sourceUrl.Contains("transparent="))
+                uriBuilder.AddQueryParameter("transparent", layerPrefab.TransparencyEnabled.ToString());
             return uriBuilder;
         }
 
diff --git a/Assets/Scripts/Layers/LayerTypes/WMSLayerGameObject.cs b/Assets/Scripts/Layers/LayerTypes/WMSLayerGameObject.cs
index 8d35b45c..43aa309e 100644
--- a/Assets/Scripts/Layers/LayerTypes/WMSLayerGameObject.cs
+++ b/Assets/Scripts/Layers/LayerTypes/WMSLayerGameObject.cs
@@ -10,12 +10,21 @@ namespace Netherlands3D.Twin.Layers
     public class WMSLayerGameObject : CartesianTileLayerGameObject, ILayerWithPropertyData
     {
         private WMSTileDataLayer wmsProjectionLayer;
-        public WMSTileDataLayer WMSProjectionLayer { get => wmsProjectionLayer; }
-
+        public WMSTileDataLayer WMSProjectionLayer
+        {
+            get
+            {
+                if (wmsProjectionLayer == null)
+                    wmsProjectionLayer = GetComponent<WMSTileDataLayer>();
+                return wmsProjectionLayer;
+            }
+        }
 
         protected LayerURLPropertyData urlPropertyData = new();
         LayerPropertyData ILayerWithPropertyData.PropertyData => urlPropertyData;
 
+        public bool TransparencyEnabled { get => WMSProjectionLayer.TransparencyEnabled; }
+        
         protected override void Awake() 
         {
             base.Awake();