diff options
| -rw-r--r-- | liblogdiag/ld-lua.c | 124 |
1 files changed, 63 insertions, 61 deletions
diff --git a/liblogdiag/ld-lua.c b/liblogdiag/ld-lua.c index b97b892..522ecec 100644 --- a/liblogdiag/ld-lua.c +++ b/liblogdiag/ld-lua.c @@ -94,6 +94,9 @@ static int ld_lua_cairo_save (lua_State *L); static int ld_lua_cairo_restore (lua_State *L); static int ld_lua_cairo_get_line_width (lua_State *L); static int ld_lua_cairo_set_line_width (lua_State *L); +static int ld_lua_cairo_translate (lua_State *L); +static int ld_lua_cairo_scale (lua_State *L); +static int ld_lua_cairo_rotate (lua_State *L); static int ld_lua_cairo_move_to (lua_State *L); static int ld_lua_cairo_line_to (lua_State *L); static int ld_lua_cairo_curve_to (lua_State *L); @@ -122,6 +125,9 @@ static luaL_Reg ld_lua_cairo_table[] = {"restore", ld_lua_cairo_restore}, {"get_line_width", ld_lua_cairo_get_line_width}, {"set_line_width", ld_lua_cairo_set_line_width}, + {"translate", ld_lua_cairo_translate}, + {"scale", ld_lua_cairo_scale}, + {"rotate", ld_lua_cairo_rotate}, {"move_to", ld_lua_cairo_move_to}, {"line_to", ld_lua_cairo_line_to}, {"curve_to", ld_lua_cairo_curve_to}, @@ -649,15 +655,21 @@ get_cairo_scale (cairo_t *cr) return dx; } -#define LD_LUA_CAIRO_TRIVIAL(name) \ +#define LD_LUA_CAIRO_BEGIN(name) \ static int \ ld_lua_cairo_ ## name (lua_State *L) \ { \ LdLuaDrawData *data; \ + +#define LD_LUA_CAIRO_END(n_values) \ + return (n_values); \ +} + +#define LD_LUA_CAIRO_TRIVIAL(name) \ +LD_LUA_CAIRO_BEGIN (name) \ data = lua_touserdata (L, lua_upvalueindex (1)); \ cairo_ ## name (data->cr); \ - return 0; \ -} +LD_LUA_CAIRO_END (0) LD_LUA_CAIRO_TRIVIAL (new_path) LD_LUA_CAIRO_TRIVIAL (new_sub_path) @@ -670,60 +682,67 @@ LD_LUA_CAIRO_TRIVIAL (fill_preserve) LD_LUA_CAIRO_TRIVIAL (clip) LD_LUA_CAIRO_TRIVIAL (clip_preserve) -static int -ld_lua_cairo_save (lua_State *L) -{ - LdLuaDrawData *data; - +LD_LUA_CAIRO_BEGIN (save) data = lua_touserdata (L, lua_upvalueindex (1)); if (data->save_count + 1) { data->save_count++; cairo_save (data->cr); } - return 0; -} - -static int -ld_lua_cairo_restore (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_END (0) +LD_LUA_CAIRO_BEGIN (restore) data = lua_touserdata (L, lua_upvalueindex (1)); if (data->save_count) { data->save_count--; cairo_restore (data->cr); } - return 0; -} - -static int -ld_lua_cairo_get_line_width (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_END (0) +LD_LUA_CAIRO_BEGIN (get_line_width) data = lua_touserdata (L, lua_upvalueindex (1)); lua_pushnumber (L, cairo_get_line_width (data->cr) * get_cairo_scale (data->cr)); - return 1; -} - -static int -ld_lua_cairo_set_line_width (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_END (1) +LD_LUA_CAIRO_BEGIN (set_line_width) data = lua_touserdata (L, lua_upvalueindex (1)); cairo_set_line_width (data->cr, luaL_checknumber (L, 1) / get_cairo_scale (data->cr)); - return 0; -} +LD_LUA_CAIRO_END (0) -static int -ld_lua_cairo_move_to (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_BEGIN (translate) + lua_Number x, y; + + data = lua_touserdata (L, lua_upvalueindex (1)); + + x = luaL_checknumber (L, 1); + y = luaL_checknumber (L, 2); + + cairo_translate (data->cr, x, y); +LD_LUA_CAIRO_END (0) + +LD_LUA_CAIRO_BEGIN (scale) + lua_Number sx, sy; + + data = lua_touserdata (L, lua_upvalueindex (1)); + + sx = luaL_checknumber (L, 1); + sy = luaL_checknumber (L, 2); + + cairo_scale (data->cr, sx, sy); +LD_LUA_CAIRO_END (0) + +LD_LUA_CAIRO_BEGIN (rotate) + lua_Number angle; + + data = lua_touserdata (L, lua_upvalueindex (1)); + angle = luaL_checknumber (L, 1); + cairo_rotate (data->cr, angle); +LD_LUA_CAIRO_END (0) + +LD_LUA_CAIRO_BEGIN (move_to) lua_Number x, y; data = lua_touserdata (L, lua_upvalueindex (1)); @@ -732,13 +751,9 @@ ld_lua_cairo_move_to (lua_State *L) y = luaL_checknumber (L, 2); cairo_move_to (data->cr, x, y); - return 0; -} +LD_LUA_CAIRO_END (0) -static int -ld_lua_cairo_line_to (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_BEGIN (line_to) lua_Number x, y; data = lua_touserdata (L, lua_upvalueindex (1)); @@ -747,13 +762,9 @@ ld_lua_cairo_line_to (lua_State *L) y = luaL_checknumber (L, 2); cairo_line_to (data->cr, x, y); - return 0; -} +LD_LUA_CAIRO_END (0) -static int -ld_lua_cairo_curve_to (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_BEGIN (curve_to) lua_Number x1, y1, x2, y2, x3, y3; data = lua_touserdata (L, lua_upvalueindex (1)); @@ -766,13 +777,9 @@ ld_lua_cairo_curve_to (lua_State *L) y3 = luaL_checknumber (L, 6); cairo_curve_to (data->cr, x1, y1, x2, y2, x3, y3); - return 0; -} +LD_LUA_CAIRO_END (0) -static int -ld_lua_cairo_arc (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_BEGIN (arc) lua_Number xc, yc, radius, angle1, angle2; data = lua_touserdata (L, lua_upvalueindex (1)); @@ -784,13 +791,9 @@ ld_lua_cairo_arc (lua_State *L) angle2 = luaL_checknumber (L, 5); cairo_arc (data->cr, xc, yc, radius, angle1, angle2); - return 0; -} +LD_LUA_CAIRO_END (0) -static int -ld_lua_cairo_arc_negative (lua_State *L) -{ - LdLuaDrawData *data; +LD_LUA_CAIRO_BEGIN (arc_negative) lua_Number xc, yc, radius, angle1, angle2; data = lua_touserdata (L, lua_upvalueindex (1)); @@ -802,6 +805,5 @@ ld_lua_cairo_arc_negative (lua_State *L) angle2 = luaL_checknumber (L, 5); cairo_arc_negative (data->cr, xc, yc, radius, angle1, angle2); - return 0; -} +LD_LUA_CAIRO_END (0) |