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#ifndef MGL_WINDOW_H
#define MGL_WINDOW_H
#include "../graphics/color.h"
#include "../system/vec.h"
#include "../system/clock.h"
#include "key.h"
#include <stdbool.h>
/* Vsync is automatically set for created windows, if supported by the system */
typedef struct mgl_event mgl_event;
/* x11 window handle. TODO: Add others when wayland, etc is added */
typedef unsigned long mgl_window_handle;
typedef struct mgl_window mgl_window;
typedef struct {
mgl_vec2i position;
mgl_vec2i size;
} mgl_view;
struct mgl_window {
mgl_window_handle window;
void *context;
mgl_vec2i size;
/* relative to the top left of the window. only updates when the cursor is inside the window */
mgl_vec2i cursor_position;
mgl_view view;
bool open;
bool focused;
double frame_time_limit;
mgl_clock frame_timer;
};
int mgl_window_create(mgl_window *self, const char *title, int width, int height);
/* if |parent_window| is 0 then the root window is used */
int mgl_window_create_with_params(mgl_window *self, const char *title, int width, int height, mgl_window_handle parent_window);
int mgl_window_init_from_existing_window(mgl_window *self, mgl_window_handle existing_window);
void mgl_window_deinit(mgl_window *self);
void mgl_window_clear(mgl_window *self, mgl_color color);
bool mgl_window_poll_event(mgl_window *self, mgl_event *event);
void mgl_window_display(mgl_window *self);
/*
This should be called every frame to retain the view.
Make sure to set the view back to the previous view after rendering items
by saving the previous view with |mgl_window_get_view| and then call
|mgl_window_set_view| with that saved view.
*/
void mgl_window_set_view(mgl_window *self, mgl_view *new_view);
void mgl_window_get_view(mgl_window *self, mgl_view *view);
bool mgl_window_is_open(const mgl_window *self);
bool mgl_window_has_focus(const mgl_window *self);
bool mgl_window_is_key_pressed(const mgl_window *self, mgl_key key);
void mgl_window_close(mgl_window *self);
void mgl_window_set_title(mgl_window *self, const char *title);
void mgl_window_set_cursor_visible(mgl_window *self, bool visible);
/* 0 = no fps limit */
void mgl_window_set_framerate_limit(mgl_window *self, int fps);
#endif /* MGL_WINDOW_H */
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