Create new component system & initial settings window

src/dusk/ui/button.cpp

@@ -0,0 +1,49 @@
+#include "button.hpp"
+
+#include "ui.hpp"
+
+#include <utility>
+
+namespace dusk::ui {
+namespace {
+
+Rml::Element* createRoot(Rml::Element* parent, const Rml::String& className) {
+    auto* doc = parent->GetOwnerDocument();
+    auto elem = doc->CreateElement("button");
+    elem->SetClass(className, true);
+    return parent->AppendChild(std::move(elem));
+}
+
+}  // namespace
+
+Button::Button(Rml::Element* parent, ButtonProps props, const Rml::String& className)
+    : Component(createRoot(parent, className)) {
+    update_props(std::move(props));
+    listen(mRoot, Rml::EventId::Click, [this](Rml::Event& event) {
+        if (mProps.onPressed) {
+            mProps.onPressed(event);
+        }
+    });
+}
+
+void Button::set_text(const Rml::String& text) {
+    if (mProps.text != text) {
+        mRoot->SetInnerRML(escape(text));
+        mProps.text = text;
+    }
+}
+
+void Button::set_selected(bool selected) {
+    if (mProps.selected != selected) {
+        mRoot->SetClass("selected", selected);
+        mProps.selected = selected;
+    }
+}
+
+void Button::update_props(Props props) {
+    set_text(props.text);
+    set_selected(props.selected);
+    mProps = std::move(props);
+}
+
+}  // namespace dusk::ui