refactor: add GUI instance reference to UI nodes

src/graphics/ui/elements/Panel.cpp

@@ -4,14 +4,12 @@
 
 using namespace gui;
 
-Panel::Panel(glm::vec2 size, glm::vec4 padding, float interval)
-  : BasePanel(size, padding, interval, Orientation::vertical)
-{
+Panel::Panel(GUI& gui, glm::vec2 size, glm::vec4 padding, float interval)
+    : BasePanel(gui, size, padding, interval) {
     setColor(glm::vec4(0.0f, 0.0f, 0.0f, 0.75f));
 }
 
-Panel::~Panel() {
-}
+Panel::~Panel() = default;
 
 void Panel::setMaxLength(int value) {
     maxLength = value;
@@ -46,7 +44,7 @@ void Panel::fullRefresh() {
     Container::fullRefresh();
 }
 
-void Panel::add(const std::shared_ptr<UINode> &node) {
+void Panel::add(const std::shared_ptr<UINode>& node) {
     node->setResizing(true);
     Container::add(node);
     fullRefresh();
@@ -68,10 +66,10 @@ void Panel::refresh() {
         for (auto& node : nodes) {
             const glm::vec4 margin = node->getMargin();
             y += margin.y;
-            
+
             float ex = x + margin.x;
             node->setPos(glm::vec2(ex, y));
-            
+
             float width = size.x - padding.x - padding.z - margin.x - margin.z;
             if (node->isResizing()) {
                 node->setMaxSize({width, node->getMaxSize().y});
@@ -80,7 +78,7 @@ void Panel::refresh() {
             node->refresh();
             glm::vec2 nodeSize = node->getSize();
             y += nodeSize.y + margin.w + interval;
-            maxw = fmax(maxw, ex+nodeSize.x+margin.z+padding.z);
+            maxw = fmax(maxw, ex + nodeSize.x + margin.z + padding.z);
         }
         actualLength = y + padding.w;
     } else {
@@ -89,11 +87,13 @@ void Panel::refresh() {
             glm::vec2 nodesize = node->getSize();
             const glm::vec4 margin = node->getMargin();
             x += margin.x;
-            node->setPos(glm::vec2(x, y+margin.y));
+            node->setPos(glm::vec2(x, y + margin.y));
             x += nodesize.x + margin.z + interval;
-            
+
             node->refresh();
-            maxh = fmax(maxh, y+margin.y+node->getSize().y+margin.w+padding.w);
+            maxh = fmax(
+                maxh, y + margin.y + node->getSize().y + margin.w + padding.w
+            );
         }
         actualLength = size.y;
     }