inital nodes and props

include/regolith.h

@@ -39,7 +39,10 @@ enum {
   RG_ERR_GENERIC = -1,
   RG_ERR_NO_MEMORY = -2,
   RG_ERR_STATE = -3,
-  RG_ERR_LUA = -4
+  RG_ERR_LUA = -4,
+  RG_ERR_HANDLE = -5,
+  RG_ERR_TYPE = -6,
+  RG_ERR_PROP = -7
 };
 
 enum { RG_LOG_TRACE = 0, RG_LOG_DEBUG, RG_LOG_INFO, RG_LOG_WARN, RG_LOG_ERROR };
@@ -72,6 +75,96 @@ RG_API rg_context *rg_create(const rg_config *config);
 RG_API void rg_destroy(rg_context *ctx);
 RG_API const char *rg_last_error(const rg_context *ctx);
 
+typedef uint64_t rg_node;
+#define RG_NODE_NONE ((rg_node)0)
+
+enum {
+  RG_NODE_ROOT = 0,
+  RG_NODE_BOX,
+  RG_NODE_HBOX,
+  RG_NODE_VBOX,
+  RG_NODE_PANEL,
+  RG_NODE_LABEL,
+  RG_NODE_BUTTON,
+  RG_NODE_TYPE_COUNT
+};
+
+enum {
+  RG_VAL_NONE = 0,
+  RG_VAL_BOOL,
+  RG_VAL_INT,
+  RG_VAL_FLOAT,
+  RG_VAL_ENUM,
+  RG_VAL_COLOR,
+  RG_VAL_SIZE,
+  RG_VAL_VEC4,
+  RG_VAL_STRING
+};
+
+enum { RG_SIZE_FIT = 0, RG_SIZE_GROW, RG_SIZE_FIXED, RG_SIZE_PERCENT };
+enum { RG_DIR_ROW = 0, RG_DIR_COLUMN };
+enum { RG_ALIGN_START = 0, RG_ALIGN_CENTER, RG_ALIGN_END };
+
+enum {
+  RG_PROP_DIRECTION = 0,
+  RG_PROP_WIDTH,
+  RG_PROP_HEIGHT,
+  RG_PROP_PADDING,
+  RG_PROP_GAP,
+  RG_PROP_ALIGN_X,
+  RG_PROP_ALIGN_Y,
+  RG_PROP_BACKGROUND,
+  RG_PROP_BORDER_COLOR,
+  RG_PROP_BORDER_WIDTH,
+  RG_PROP_CORNER_RADIUS,
+  RG_PROP_OPACITY,
+  RG_PROP_VISIBLE,
+  RG_PROP_TEXT,
+  RG_PROP_FONT,
+  RG_PROP_FONT_SIZE,
+  RG_PROP_COLOR,
+  RG_PROP_COUNT
+};
+
+typedef struct rg_value {
+  int32_t type;
+  int32_t i;
+  float f[4];
+  const char *s;
+} rg_value;
+
+RG_API int32_t rg_type_find(const char *name);
+RG_API const char *rg_type_name(int32_t type);
+
+RG_API rg_node rg_root(const rg_context *ctx);
+RG_API rg_node rg_node_create(rg_context *ctx, int32_t type);
+RG_API void rg_node_destroy(rg_context *ctx, rg_node node);
+RG_API int rg_node_valid(const rg_context *ctx, rg_node node);
+RG_API int32_t rg_node_type(const rg_context *ctx, rg_node node);
+RG_API int rg_node_append(rg_context *ctx, rg_node parent, rg_node child);
+RG_API int rg_node_insert_before(rg_context *ctx, rg_node parent, rg_node child,
+                                 rg_node ref);
+RG_API int rg_node_detach(rg_context *ctx, rg_node node);
+RG_API rg_node rg_node_parent(const rg_context *ctx, rg_node node);
+RG_API rg_node rg_node_first_child(const rg_context *ctx, rg_node node);
+RG_API rg_node rg_node_next_sibling(const rg_context *ctx, rg_node node);
+
+RG_API int32_t rg_prop_find(const char *name);
+RG_API const char *rg_prop_name(int32_t prop);
+RG_API int32_t rg_prop_type(int32_t prop);
+
+RG_API int rg_set(rg_context *ctx, rg_node node, int32_t prop,
+                  const rg_value *value);
+RG_API int rg_get(rg_context *ctx, rg_node node, int32_t prop, rg_value *out);
+RG_API int rg_unset(rg_context *ctx, rg_node node, int32_t prop);
+
+RG_API int rg_set_int(rg_context *ctx, rg_node node, int32_t prop, int32_t v);
+RG_API int rg_set_float(rg_context *ctx, rg_node node, int32_t prop, float v);
+RG_API int rg_set_string(rg_context *ctx, rg_node node, int32_t prop,
+                         const char *v);
+RG_API int rg_set_color(rg_context *ctx, rg_node node, int32_t prop, float r,
+                        float g, float b, float a);
+
 #ifdef __cplusplus
 }
 #endif