Fork of Tangara with customizations
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tangara-fw/lib/luavgl/simulator/widgets/pointer.c

101 lines
2.3 KiB

#include <lauxlib.h>
#include <lua.h>
#include <lvgl.h>
#include <stdlib.h>
#include <luavgl.h>
#include "lv_pointer.h"
static int luavgl_pointer_create(lua_State *L)
{
return luavgl_obj_create_helper(L, lv_pointer_create);
}
static void _lv_pointer_set_range(void *obj, lua_State *L)
{
if (!lua_istable(L, -1)) {
luaL_argerror(L, -1, "expect date table.");
return;
}
uint32_t value_start, value_range, angle_start, angle_range;
lua_getfield(L, -1, "valueStart");
value_start = lua_tointeger(L, -1);
lua_pop(L, 1);
lua_getfield(L, -1, "valueRange");
value_range = lua_tointeger(L, -1);
lua_pop(L, 1);
lua_getfield(L, -1, "angleStart");
angle_start = lua_tointeger(L, -1);
lua_pop(L, 1);
lua_getfield(L, -1, "angleRange");
angle_range = lua_tointeger(L, -1);
lua_pop(L, 1);
lv_pointer_set_range(obj, value_start, value_range, angle_start,
angle_range);
}
/* clang-format off */
static const luavgl_value_setter_t pointer_property_table[] = {
{"range", SETTER_TYPE_STACK, {.setter_stack = _lv_pointer_set_range}},
{"value", SETTER_TYPE_INT, {.setter = (setter_int_t)lv_pointer_set_value}},
};
/* clang-format on */
static int luavgl_pointer_set_property_kv(lua_State *L, void *data)
{
lv_obj_t *obj = data;
int ret = luavgl_set_property(L, obj, pointer_property_table);
if (ret == 0) {
return 0;
}
/* a base obj property? */
ret = luavgl_img_set_property_kv(L, obj);
if (ret != 0) {
printf("unkown property for pointer: %s\n", lua_tostring(L, -2));
}
return -1;
}
static int luavgl_pointer_set(lua_State *L)
{
lv_obj_t *obj = luavgl_to_obj(L, 1);
if (!lua_istable(L, -1)) {
luaL_error(L, "expect a table on 2nd para.");
return 0;
}
luavgl_iterate(L, -1, luavgl_pointer_set_property_kv, obj);
return 0;
}
static const luaL_Reg luavgl_pointer_methods[] = {
{"set", luavgl_pointer_set},
{NULL, NULL },
};
void luavgl_pointer_init(lua_State *L)
{
luavgl_obj_newmetatable(L, &lv_pointer_class, "lv_pointer",
luavgl_pointer_methods);
lua_pop(L, 1);
luaL_getmetatable(L, "widgets");
lua_getfield(L, -1, "__index");
lua_pushcfunction(L, luavgl_pointer_create);
lua_setfield(L, -2, "Pointer");
lua_pop(L, 2);
}