1 files changed, 56 insertions, 0 deletions
diff --git a/src/gui/WidgetContainer.cpp b/src/gui/WidgetContainer.cpp
new file mode 100644
index 0000000..ab97b5b
--- /dev/null
+++ b/src/gui/WidgetContainer.cpp
@@ -0,0 +1,56 @@
+#include "../../include/gui/WidgetContainer.hpp"
+#include "../../include/gui/Widget.hpp"
+
+namespace gsr {
+    // static
+    WidgetContainer& WidgetContainer::get_instance() {
+        static WidgetContainer instance;
+        return instance;
+    }
+
+    void WidgetContainer::add_widget(Widget *widget) {
+        // TODO: to_be_added, and remove in the draw loop
+        #ifdef DEBUG
+        for(Widget *existing_widget : widgets) {
+            if(existing_widget == widget)
+                return;
+        }
+        #endif
+        widgets.push_back(widget);
+    }
+
+    void WidgetContainer::remove_widget(Widget *widget) {
+        // TODO: to_be_removed, and remove in draw loop
+        for(auto it = widgets.begin(), end = widgets.end(); it != end; ++it) {
+            if(*it == widget) {
+                widgets.erase(it);
+                return;
+            }
+        }
+    }
+
+    void WidgetContainer::on_event(mgl::Event &event, mgl::Window &window) {
+        // Process widgets by visibility (backwards)
+        for(auto it = widgets.rbegin(), end = widgets.rend(); it != end; ++it) {
+            if(!(*it)->on_event(event, window))
+                return;
+        }
+    }
+
+    void WidgetContainer::draw(mgl::Window &window) {
+        for(auto it = widgets.begin(); it != widgets.end(); ++it) {
+            Widget *widget = *it;
+            if(widget->move_to_top) {
+                widget->move_to_top = false;
+                if(widgets.back() != widget) {
+                    widgets.erase(it);
+                    widgets.push_back(widget);
+                }
+            }
+        }
+
+        for(Widget *widget : widgets) {
+            widget->draw(window);
+        }
+    }
+}
+\ No newline at end of file