UI

include/vamp_zero/menu_view.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <chrono>
+#include <optional>
+#include <set>
+#include <vector>
+
+#include <luma.hpp>
+
+#include <vamp_style.hpp>
+#include <vamp_zero/menu.hpp>
+
+
+namespace vamp_zero {
+
+struct menu_target {
+  luma::rect bounds{};
+  vamp_zero::menu_action action{};
+};
+
+auto menu_layout(luma::rect bounds, vamp_zero::app_state const &state) -> std::vector<vamp_zero::menu_target>;
+auto draw_label(luma::draw_context &context, luma::rect bounds, std::string text, std::float32_t size, vamp_style::color color) -> void;
+auto draw_menu(luma::draw_context &context, luma::rect bounds, vamp_zero::app_state const &state) -> void;
+auto draw_header(luma::draw_context &context, luma::rect bounds, vamp_zero::app_state const &state) -> void;
+
+class menu_touch {
+public:
+  auto handle(luma::touch_event const &event, luma::rect bounds, vamp_zero::app_state const &state) -> std::optional<vamp_zero::menu_action>;
+private:
+  std::set<std::int32_t> fingers_{};
+  std::optional<vamp_zero::menu_target> target_{};
+  luma::point origin_{};
+  std::chrono::steady_clock::time_point pressed_{};
+};
+
+}