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typedef enum {
KT_OPEN = 1,
KT_CORNER = 2,
KT_LEFT = 4,
KT_RIGHT = 8,
KT_CORNU = 16,
KT_SELECTED = 256
} kt_flags;
typedef struct {
double x;
double y;
kt_flags flags;
} knot;
typedef struct {
int n_kt;
int n_kt_max;
knot *kt;
int closed;
} subpath;
typedef enum {
MOUSE_MODE_SELECT,
MOUSE_MODE_ADD_CURVE,
MOUSE_MODE_ADD_CORNER,
MOUSE_MODE_ADD_CORNU,
MOUSE_MODE_ADD_LEFT,
MOUSE_MODE_ADD_RIGHT
} mouse_mode;
typedef enum {
MOTION_MODE_IDLE,
MOTION_MODE_SELECT,
MOTION_MODE_MOVE
} motion_mode;
typedef struct {
double x0, y0;
const char *description;
int n_sp;
int n_sp_max;
subpath *sp;
mouse_mode mmode;
mouse_mode last_curve_mmode;
motion_mode motmode;
double sel_x0, sel_y0;
} plate;
typedef enum {
PRESS_MOD_SHIFT = 1,
PRESS_MOD_CTRL = 2,
PRESS_MOD_DOUBLE = 4,
PRESS_MOD_TRIPLE = 8
} press_mod;
plate *
new_plate(void);
void
free_plate(plate *p);
plate *
copy_plate(const plate *p);
void
plate_select_all(plate *p, int selected);
subpath *
plate_find_selected_sp(plate *p);
subpath *
plate_new_sp(plate *p);
void
plate_press(plate *p, double x, double y, press_mod mods);
void
plate_motion_move(plate *p, double x, double y);
void
plate_motion_select(plate *p, double x, double y);
void plate_unpress(plate *p);
void
plate_toggle_corner(plate *p);
void
plate_delete_pt(plate *p);
spiro_seg *
draw_subpath(const subpath *sp, bezctx *bc);
int
file_write_plate(const char *fn, const plate *p);
plate *
file_read_plate(const char *fn);
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