'ifnot' template property + hpp

src/graphics/ui/GUI.cpp

@@ -6,7 +6,7 @@
 #include <algorithm>
 
 #include "../../assets/Assets.h"
-#include "../../frontend/UiDocument.h"
+#include "../../frontend/UiDocument.hpp"
 #include "../../graphics/core/Batch2D.hpp"
 #include "../../graphics/core/Shader.hpp"
 #include "../../graphics/core/DrawContext.hpp"

src/graphics/ui/gui_xml.cpp

@@ -533,9 +533,13 @@ void UiXmlReader::addIgnore(const std::string& tag) {
 std::shared_ptr<UINode> UiXmlReader::readUINode(xml::xmlelement element) {
     if (element->has("if")) {
         const auto& cond = element->attr("if").getText();
-        if (cond.empty() || cond == "false" || cond == "nil") {
+        if (cond.empty() || cond == "false" || cond == "nil")
+            return nullptr;
+    }
+    if (element->has("ifnot")) {
+        const auto& cond = element->attr("ifnot").getText();
+        if (!(cond.empty() || cond == "false" || cond == "nil"))
             return nullptr;
-        }
     }
 
     const std::string& tag = element->getTag();

src/graphics/ui/gui_xml.hpp

@@ -1,14 +1,14 @@
 #ifndef FRONTEND_GUI_GUI_XML_HPP_
 #define FRONTEND_GUI_GUI_XML_HPP_
 
+#include "GUI.hpp"
+#include "../../coders/xml.hpp"
+
 #include <memory>
 #include <stack>
 #include <unordered_set>
 #include <unordered_map>
 
-#include "GUI.hpp"
-#include "../../coders/xml.h"
-
 namespace gui {
     class UiXmlReader;