Add Spiro version 0.01.

1 files changed, 100 insertions, 0 deletions

diff --git a/third_party/spiro/ppedit/plate.h b/third_party/spiro/ppedit/plate.h
new file mode 100644
index 0000000..a4a1d69
--- /dev/null
+++ b/third_party/spiro/ppedit/plate.h
@@ -0,0 +1,100 @@
+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);