Rewrite mod details under new UI system.

src/ui/elements/ui_toggle.cpp

@@ -0,0 +1,82 @@
+#include "ui_toggle.h"
+
+#include <cassert>
+
+namespace recompui {
+
+    Toggle::Toggle(Element *parent) : Element(parent, Events(EventType::Click, EventType::Hover), "button") {
+        set_width(162.0f);
+        set_height(72.0f);
+        set_border_radius(36.0f);
+        set_opacity(0.9f);
+        set_cursor(Cursor::Pointer);
+        set_border_width(2.0f);
+
+        floater = std::make_unique<Element>(this);
+        floater->set_position(Position::Relative);
+        floater->set_top(2.0f);
+        floater->set_width(80.0f);
+        floater->set_height(64.0f);
+        floater->set_border_radius(32.0f);
+
+        set_checked_internal(false, false, true);
+        update_properties();
+    }
+
+    void Toggle::set_checked_internal(bool checked, bool animate, bool setup) {
+        if (this->checked != checked || setup) {
+            this->checked = checked;
+
+            floater->set_left(floater_left_target(), Unit::Dp, animate ? Animation::tween(0.1f) : Animation());
+
+            if (!setup) {
+                update_properties();
+
+                for (const auto &function : checked_callbacks) {
+                    function(checked);
+                }
+            }
+        }
+    }
+
+    void Toggle::update_properties() {
+        Color border_color = checked ? Color{ 34, 177, 76, 255 } : Color{ 177, 76, 34, 255 };
+        Color main_color = checked ? Color{ 68, 206, 120, 255 } : Color{ 206, 120, 68, 255 };
+        main_color.a = hovered ? 76 : 0;
+
+        set_border_color(border_color);
+        set_background_color(main_color);
+        floater->set_background_color(border_color);
+    }
+
+    float Toggle::floater_left_target() const {
+        return checked ? 4.0f : 78.0f;
+    }
+
+    void Toggle::process_event(const Event &e) {
+        switch (e.type) {
+        case EventType::Click:
+            set_checked_internal(!checked, true, false);
+            break;
+        case EventType::Hover:
+            hovered = e.hover.active;
+            update_properties();
+            break;
+        default:
+            assert(false && "Unknown event type.");
+            break;
+        }
+    }
+
+    void Toggle::set_checked(bool checked) {
+        set_checked_internal(checked, false, false);
+    }
+
+    bool Toggle::is_checked() const {
+        return checked;
+    }
+
+    void Toggle::add_checked_callback(std::function<void(bool)> callback) {
+        checked_callbacks.emplace_back(callback);
+    }
+};