added slider, mouse capture in Node, desaturated icons

engine/app.cpp

@@ -13,6 +13,25 @@ App App::I; // singleton
 #define SHADER_VERSION "#version 150\n"
 #endif
 
+static std::vector<std::string> FindAllBrushes(std::string folder)
+{
+    std::vector<std::string> names;
+    std::string search_path = folder + "*.png";
+    WIN32_FIND_DATAA fd;
+    HANDLE hFind = ::FindFirstFileA(search_path.c_str(), &fd);
+    if (hFind != INVALID_HANDLE_VALUE) {
+        do {
+            // read all (real) files in current folder
+            // , delete '!' read other 2 default folder . and ..
+            if (!(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
+                names.push_back(fd.cFileName);
+            }
+        } while (::FindNextFileA(hFind, &fd));
+        ::FindClose(hFind);
+    }
+    return names;
+}
+
 
 void App::create()
 {
@@ -150,6 +169,23 @@ void App::initLayout()
 
     layout.on_loaded = [&] {
         LOG("initializing layout updating after load");
+        static auto icons = FindAllBrushes("data\\Icons\\");
+        if (auto* container = layout[main_id]->find<NodeBorder>("brushes"))
+        {
+            if (auto* tpl = layout[const_hash("tpl-brush-icon")])
+            {
+                for (auto& i : icons)
+                {
+                    NodeButtonCustom* btn = (NodeButtonCustom*)tpl->m_children[0]->clone();
+                    NodeImage* img = (NodeImage*)btn->m_children[0].get();
+                    img->m_path = "data\\Icons\\" + i;
+                    img->m_tex_id = const_hash(img->m_path.c_str());
+                    img->create();
+                    container->add_child(btn);
+                }
+            }
+        }
+
         layout[main_id]->update(width, height, zoom);
         LOG("initializing layout components");
         sidebar = layout[main_id]->find<NodeBorder>("sidebar");