143 lines
2.5 KiB
C++
143 lines
2.5 KiB
C++
module;
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#ifdef LIGHT_PLATFORM_LINUX
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typedef struct _XDisplay Display;
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#endif
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export module surface.system:components;
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import std;
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import math.vec2;
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import surface.events;
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import surface.requests;
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namespace lt::surface {
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/** Represents a platform's surface (eg. a Window).
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*
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* @note This is a "system component"
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*/
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export class SurfaceComponent
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{
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public:
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friend class System;
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using Event = std::variant<
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ClosedEvent,
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MovedEvent,
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ResizedEvent,
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LostFocusEvent,
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GainFocusEvent,
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KeyPressedEvent,
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KeyReleasedEvent,
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MouseMovedEvent,
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ButtonPressedEvent,
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ButtonReleasedEvent>;
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using Request = std::variant<
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ModifyTitleRequest,
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ModifyResolutionRequest,
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ModifyPositionRequest,
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ModifyVisibilityRequest>;
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#ifdef LIGHT_PLATFORM_LINUX
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struct NativeData
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{
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Display *display;
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std::uint32_t window;
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unsigned long wm_delete_message;
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};
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#endif
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static constexpr auto max_dimension = 4096;
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static constexpr auto max_title_length = 256;
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struct CreateInfo
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{
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std::string_view title;
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math::uvec2 resolution;
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bool vsync;
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bool visible;
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};
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[[nodiscard]] auto get_title() const -> std::string_view
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{
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return m_title;
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}
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[[nodiscard]] auto get_resolution() const -> const math::uvec2 &
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{
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return m_resolution;
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}
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[[nodiscard]] auto get_position() const -> const math::ivec2 &
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{
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return m_position;
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}
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[[nodiscard]] auto is_vsync() const -> bool
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{
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return m_vsync;
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}
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[[nodiscard]] auto is_visible() const -> bool
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{
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return m_visible;
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}
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[[nodiscard]] auto get_native_data() const -> const NativeData &
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{
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return m_native_data;
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}
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[[nodiscard]] auto peek_events() const -> const std::vector<Event> &
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{
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return m_event_queue;
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}
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[[nodiscard]] auto peek_requests() const -> const std::vector<Request> &
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{
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return m_requests;
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};
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void push_request(const Request &request)
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{
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m_requests.emplace_back(request);
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}
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/** @note: Only the surface system and tests should push events */
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void push_event(const Event &event)
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{
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m_event_queue.emplace_back(event);
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}
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private:
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SurfaceComponent(const CreateInfo &info)
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: m_title(info.title)
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, m_resolution(info.resolution)
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, m_vsync(info.vsync)
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, m_visible(info.visible)
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, m_native_data({})
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{
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}
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std::string m_title;
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math::uvec2 m_resolution;
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math::ivec2 m_position;
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bool m_vsync;
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bool m_visible;
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NativeData m_native_data;
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std::vector<Event> m_event_queue;
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std::vector<Request> m_requests;
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};
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} // namespace lt::surface
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