rna_key.c

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * Contributor(s): Blender Foundation (2008).
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include <stdlib.h>

#include "RNA_access.h"
#include "RNA_define.h"

#include "rna_internal.h"

#include "DNA_ID.h"
#include "DNA_curve_types.h"
#include "DNA_key_types.h"
#include "DNA_lattice_types.h"
#include "DNA_mesh_types.h"

#ifdef RNA_RUNTIME

#include <stddef.h>

#include "DNA_object_types.h"
#include "DNA_scene_types.h"

#include "BKE_animsys.h"
#include "BKE_depsgraph.h"
#include "BKE_key.h"
#include "BKE_main.h"

#include "WM_api.h"
#include "WM_types.h"

static Key *rna_ShapeKey_find_key(ID *id)
{
    switch(GS(id->name)) {
        case ID_CU: return ((Curve*)id)->key;
        case ID_KE: return (Key*)id;
        case ID_LT: return ((Lattice*)id)->key;
        case ID_ME: return ((Mesh*)id)->key;
        case ID_OB: return ob_get_key((Object*)id);
        default: return NULL;
    }
}

void rna_ShapeKey_name_set(PointerRNA *ptr, const char *value)
{
    KeyBlock *kb= ptr->data;
    char oldname[sizeof(kb->name)];
    
    /* make a copy of the old name first */
    BLI_strncpy(oldname, kb->name, sizeof(kb->name));
    
    /* copy the new name into the name slot */
    BLI_strncpy_utf8(kb->name, value, sizeof(kb->name));
    
    /* make sure the name is truly unique */
    if (ptr->id.data) {
        Key *key= rna_ShapeKey_find_key(ptr->id.data);
        BLI_uniquename(&key->block, kb, "Key", '.', offsetof(KeyBlock, name), sizeof(kb->name));
    }
    
    /* fix all the animation data which may link to this */
    BKE_all_animdata_fix_paths_rename("key_blocks", oldname, kb->name);
}

static void rna_ShapeKey_value_set(PointerRNA *ptr, float value)
{
    KeyBlock *data= (KeyBlock*)ptr->data;
    CLAMP(value, data->slidermin, data->slidermax);
    data->curval= value;
}

static void rna_ShapeKey_value_range(PointerRNA *ptr, float *min, float *max)
{
    KeyBlock *data= (KeyBlock*)ptr->data;

    *min= data->slidermin;
    *max= data->slidermax;
}

/* epsilon for how close one end of shapekey range can get to the other */
#define SHAPEKEY_SLIDER_TOL 0.001f

static void rna_ShapeKey_slider_min_range(PointerRNA *ptr, float *min, float *max)
{
    KeyBlock *data= (KeyBlock*)ptr->data;

    *min= -10.0f;
    *max= data->slidermax - SHAPEKEY_SLIDER_TOL;
}

static void rna_ShapeKey_slider_min_set(PointerRNA *ptr, float value)
{
    KeyBlock *data= (KeyBlock*)ptr->data;
    float min, max;
    
    rna_ShapeKey_slider_min_range(ptr, &min, &max);
    CLAMP(value, min, max);
    data->slidermin = value;
}

static void rna_ShapeKey_slider_max_range(PointerRNA *ptr, float *min, float *max)
{
    KeyBlock *data= (KeyBlock*)ptr->data;

    *min= data->slidermin + SHAPEKEY_SLIDER_TOL;
    *max= 10.0f;
}

static void rna_ShapeKey_slider_max_set(PointerRNA *ptr, float value)
{
    KeyBlock *data= (KeyBlock*)ptr->data;
    float min, max;
    
    rna_ShapeKey_slider_max_range(ptr, &min, &max);
    CLAMP(value, min, max);
    data->slidermax = value;
}

#undef SHAPEKEY_SLIDER_TOL

PointerRNA rna_object_shapekey_index_get(ID *id, int value)
{
    Key *key= rna_ShapeKey_find_key(id);
    KeyBlock *kb= NULL;
    PointerRNA ptr;

    if (key && value < key->totkey)
        kb = BLI_findlink(&key->block, value);
    
    RNA_pointer_create(id, &RNA_ShapeKey, kb, &ptr);

    return ptr;
}

int rna_object_shapekey_index_set(ID *id, PointerRNA value, int current)
{
    Key *key= rna_ShapeKey_find_key(id);

    if (key) {
        int a = BLI_findindex(&key->block, value.data);
        if (a >= 0) return a;
    }
    
    return current;
}

static PointerRNA rna_ShapeKey_relative_key_get(PointerRNA *ptr)
{
    KeyBlock *kb= (KeyBlock*)ptr->data;

    return rna_object_shapekey_index_get(ptr->id.data, kb->relative);
}

static void rna_ShapeKey_relative_key_set(PointerRNA *ptr, PointerRNA value)
{
    KeyBlock *kb= (KeyBlock*)ptr->data;

    kb->relative= rna_object_shapekey_index_set(ptr->id.data, value, kb->relative);
}

static void rna_ShapeKeyPoint_co_get(PointerRNA *ptr, float *values)
{
    float *vec= (float*)ptr->data;

    values[0]= vec[0];
    values[1]= vec[1];
    values[2]= vec[2];
}

static void rna_ShapeKeyPoint_co_set(PointerRNA *ptr, const float *values)
{
    float *vec= (float*)ptr->data;

    vec[0]= values[0];
    vec[1]= values[1];
    vec[2]= values[2];
}

static float rna_ShapeKeyCurvePoint_tilt_get(PointerRNA *ptr)
{
    float *vec= (float*)ptr->data;
    return vec[3];
}

static void rna_ShapeKeyCurvePoint_tilt_set(PointerRNA *ptr, float value)
{
    float *vec= (float*)ptr->data;
    vec[3]= value;
}

static void rna_ShapeKeyBezierPoint_co_get(PointerRNA *ptr, float *values)
{
    float *vec= (float*)ptr->data;

    values[0]= vec[0+3];
    values[1]= vec[1+3];
    values[2]= vec[2+3];
}

static void rna_ShapeKeyBezierPoint_co_set(PointerRNA *ptr, const float *values)
{
    float *vec= (float*)ptr->data;

    vec[0+3]= values[0];
    vec[1+3]= values[1];
    vec[2+3]= values[2];
}

static void rna_ShapeKeyBezierPoint_handle_1_co_get(PointerRNA *ptr, float *values)
{
    float *vec= (float*)ptr->data;

    values[0]= vec[0];
    values[1]= vec[1];
    values[2]= vec[2];
}

static void rna_ShapeKeyBezierPoint_handle_1_co_set(PointerRNA *ptr, const float *values)
{
    float *vec= (float*)ptr->data;

    vec[0]= values[0];
    vec[1]= values[1];
    vec[2]= values[2];
}

static void rna_ShapeKeyBezierPoint_handle_2_co_get(PointerRNA *ptr, float *values)
{
    float *vec= (float*)ptr->data;

    values[0]= vec[6+0];
    values[1]= vec[6+1];
    values[2]= vec[6+2];
}

static void rna_ShapeKeyBezierPoint_handle_2_co_set(PointerRNA *ptr, const float *values)
{
    float *vec= (float*)ptr->data;

    vec[6+0]= values[0];
    vec[6+1]= values[1];
    vec[6+2]= values[2];
}

/*static float rna_ShapeKeyBezierPoint_tilt_get(PointerRNA *ptr)
{
    float *vec= (float*)ptr->data;
    return vec[10];
}

static void rna_ShapeKeyBezierPoint_tilt_set(PointerRNA *ptr, float value)
{
    float *vec= (float*)ptr->data;
    vec[10]= value;
}*/

static void rna_ShapeKey_data_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
{
    Key *key= rna_ShapeKey_find_key(ptr->id.data);
    KeyBlock *kb= (KeyBlock*)ptr->data;
    Curve *cu;
    Nurb *nu;
    int tot= kb->totelem, size= key->elemsize;
    
    if(GS(key->from->name) == ID_CU) {
        cu= (Curve*)key->from;
        nu= cu->nurb.first;
        
        if(nu->bezt) {
            tot /= 3;
            size *= 3;
        }
    }
    
    rna_iterator_array_begin(iter, (void*)kb->data, size, tot, 0, NULL);
}

static int rna_ShapeKey_data_length(PointerRNA *ptr)
{
    Key *key= rna_ShapeKey_find_key(ptr->id.data);
    KeyBlock *kb= (KeyBlock*)ptr->data;
    Curve *cu;
    Nurb *nu;
    int tot= kb->totelem;
    
    if(GS(key->from->name) == ID_CU) {
        cu= (Curve*)key->from;
        nu= cu->nurb.first;
        
        if(nu->bezt)
            tot /= 3;
    }
    
    return tot;
}

static PointerRNA rna_ShapeKey_data_get(CollectionPropertyIterator *iter)
{
    Key *key= rna_ShapeKey_find_key(iter->parent.id.data);
    StructRNA *type;
    Curve *cu;
    Nurb *nu;
    
    if(GS(key->from->name) == ID_CU) {
        cu= (Curve*)key->from;
        nu= cu->nurb.first;
        
        if(nu->bezt)
            type= &RNA_ShapeKeyBezierPoint;
        else
            type= &RNA_ShapeKeyCurvePoint;
    }
    else
        type= &RNA_ShapeKeyPoint;
    
    return rna_pointer_inherit_refine(&iter->parent, type, rna_iterator_array_get(iter));
}

static char *rna_ShapeKey_path(PointerRNA *ptr)
{
    KeyBlock *kb= (KeyBlock *)ptr->data;
    ID *id= ptr->id.data;
    
    if ((id) && (GS(id->name) != ID_KE))
        return BLI_sprintfN("shape_keys.key_blocks[\"%s\"]", kb->name);
    else
        return BLI_sprintfN("key_blocks[\"%s\"]", kb->name);
}

static void rna_Key_update_data(Main *bmain, Scene *UNUSED(scene), PointerRNA *ptr)
{
    Key *key= ptr->id.data;
    Object *ob;

    for(ob=bmain->object.first; ob; ob= ob->id.next) {
        if(ob_get_key(ob) == key) {
            DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
            WM_main_add_notifier(NC_OBJECT|ND_MODIFIER, ob);
        }
    }
}

static KeyBlock *rna_ShapeKeyData_find_keyblock(Key *key, float *point)
{
    KeyBlock *kb;
    
    /* sanity checks */
    if (ELEM(NULL, key, point))
        return NULL;
    
    /* we'll need to manually search through the keyblocks and check 
     * if the point is somewhere in the middle of each block's data
     */
    for (kb = key->block.first; kb; kb = kb->next) {
        if (kb->data) {
            float *start = (float *)kb->data;
            float *end;
            
            /* easy cases first */
            if ((start == NULL) || (start > point)) {
                /* there's no chance point is in array */
                continue;
            }
            else if (start == point) {
                /* exact match - point is first in array */
                return kb;
            }
            
            /* determine where end of array is 
             *  - elemsize is in bytes, so use char* cast to get array in terms of bytes
             */
            end = (float *)((char *)start + (key->elemsize * kb->totelem));
            
            /* if point's address is less than the end, then it is somewhere between start and end, so in array */
            if (end > point) {
                /* we've found the owner of the point data */
                return kb;
            }
        }
    }
    
    return NULL;
}

static int rna_ShapeKeyPoint_get_index(Key *key, KeyBlock *kb, float *point)
{
    /* if we frame the data array and point pointers as char*, then the difference between 
     * them will be in bytes. Thus, dividing through by key->elemsize (number of bytes per point)
     * gives us the offset of point from start of array.
     */
    char *start = (char *)kb->data;
    char *pt = (char *)point;
    
    return (int)(pt - start) / key->elemsize;
}

static char *rna_ShapeKeyPoint_path(PointerRNA *ptr)
{
    ID *id = (ID *)ptr->id.data;
    Key *key = rna_ShapeKey_find_key(ptr->id.data);
    KeyBlock *kb;
    float *point = (float *)ptr->data;
    
    /* if we can get a key block, we can construct a path */
    kb = rna_ShapeKeyData_find_keyblock(key, point); 
    
    if (kb) {
        int index = rna_ShapeKeyPoint_get_index(key, kb, point);
        
        if (GS(id->name) == ID_KE)
            return BLI_sprintfN("key_blocks[\"%s\"].data[%d]", kb->name, index);
        else
            return BLI_sprintfN("shape_keys.key_blocks[\"%s\"].data[%d]", kb->name, index);
    }
    else
        return NULL; // XXX: there's really no way to resolve this...
}

#else

static void rna_def_keydata(BlenderRNA *brna)
{
    StructRNA *srna;
    PropertyRNA *prop;

    srna= RNA_def_struct(brna, "ShapeKeyPoint", NULL);
    RNA_def_struct_ui_text(srna, "Shape Key Point", "Point in a shape key");
    RNA_def_struct_path_func(srna, "rna_ShapeKeyPoint_path");

    prop= RNA_def_property(srna, "co", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_array(prop, 3);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyPoint_co_get", "rna_ShapeKeyPoint_co_set", NULL);
    RNA_def_property_ui_text(prop, "Location", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    srna= RNA_def_struct(brna, "ShapeKeyCurvePoint", NULL);
    RNA_def_struct_ui_text(srna, "Shape Key Curve Point", "Point in a shape key for curves");
    RNA_def_struct_path_func(srna, "rna_ShapeKeyPoint_path"); /* there's nothing type specific here, so this is fine for now */

    prop= RNA_def_property(srna, "co", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_array(prop, 3);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyPoint_co_get", "rna_ShapeKeyPoint_co_set", NULL);
    RNA_def_property_ui_text(prop, "Location", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "tilt", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyCurvePoint_tilt_get", "rna_ShapeKeyCurvePoint_tilt_set", NULL);
    RNA_def_property_ui_text(prop, "Tilt", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    srna= RNA_def_struct(brna, "ShapeKeyBezierPoint", NULL);
    RNA_def_struct_ui_text(srna, "Shape Key Bezier Point", "Point in a shape key for Bezier curves");
    RNA_def_struct_path_func(srna, "rna_ShapeKeyPoint_path"); /* there's nothing type specific here, so this is fine for now */

    prop= RNA_def_property(srna, "co", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_array(prop, 3);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyBezierPoint_co_get", "rna_ShapeKeyBezierPoint_co_set", NULL);
    RNA_def_property_ui_text(prop, "Location", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "handle_left", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_array(prop, 3);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyBezierPoint_handle_1_co_get", "rna_ShapeKeyBezierPoint_handle_1_co_set", NULL);
    RNA_def_property_ui_text(prop, "Handle 1 Location", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "handle_right", PROP_FLOAT, PROP_TRANSLATION);
    RNA_def_property_array(prop, 3);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyBezierPoint_handle_2_co_get", "rna_ShapeKeyBezierPoint_handle_2_co_set", NULL);
    RNA_def_property_ui_text(prop, "Handle 2 Location", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    /* appears to be unused currently
    prop= RNA_def_property(srna, "tilt", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_funcs(prop, "rna_ShapeKeyBezierPoint_tilt_get", "rna_ShapeKeyBezierPoint_tilt_set", NULL);
    RNA_def_property_ui_text(prop, "Tilt", "");
    RNA_def_property_update(prop, 0, "rna_Key_update_data"); */
}

static void rna_def_keyblock(BlenderRNA *brna)
{
    StructRNA *srna;
    PropertyRNA *prop;

    static EnumPropertyItem prop_keyblock_type_items[] = {
        {KEY_LINEAR, "KEY_LINEAR", 0, "Linear", ""},
        {KEY_CARDINAL, "KEY_CARDINAL", 0, "Cardinal", ""},
        {KEY_BSPLINE, "KEY_BSPLINE", 0, "BSpline", ""},
        {0, NULL, 0, NULL, NULL}};

    srna= RNA_def_struct(brna, "ShapeKey", NULL);
    RNA_def_struct_ui_text(srna, "Shape Key", "Shape key in a shape keys datablock");
    RNA_def_struct_sdna(srna, "KeyBlock");
    RNA_def_struct_path_func(srna, "rna_ShapeKey_path");
    RNA_def_struct_ui_icon(srna, ICON_SHAPEKEY_DATA);

    prop= RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
    RNA_def_property_ui_text(prop, "Name", "Name of Shape Key");
    RNA_def_property_string_funcs(prop, NULL, NULL, "rna_ShapeKey_name_set");
    RNA_def_struct_name_property(srna, prop);

    /* keys need to be sorted to edit this */
    prop= RNA_def_property(srna, "frame", PROP_FLOAT, PROP_TIME);
    RNA_def_property_clear_flag(prop, PROP_EDITABLE);
    RNA_def_property_float_sdna(prop, NULL, "pos");
    RNA_def_property_ui_text(prop, "Frame", "Frame for absolute keys");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");
    
    /* for now, this is editable directly, as users can set this even if they're not animating them (to test results) */
    prop= RNA_def_property(srna, "value", PROP_FLOAT, PROP_FACTOR);
    RNA_def_property_float_sdna(prop, NULL, "curval");
    RNA_def_property_float_funcs(prop, NULL, "rna_ShapeKey_value_set", "rna_ShapeKey_value_range");
    RNA_def_property_ui_range(prop, -10.0f, 10.0f, 10, 3);
    RNA_def_property_ui_text(prop, "Value", "Value of shape key at the current frame");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "interpolation", PROP_ENUM, PROP_NONE);
    RNA_def_property_enum_sdna(prop, NULL, "type");
    RNA_def_property_enum_items(prop, prop_keyblock_type_items);
    RNA_def_property_ui_text(prop, "Interpolation", "Interpolation type");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "vertex_group", PROP_STRING, PROP_NONE);
    RNA_def_property_string_sdna(prop, NULL, "vgroup");
    RNA_def_property_ui_text(prop, "Vertex Group", "Vertex weight group, to blend with basis shape");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "relative_key", PROP_POINTER, PROP_NONE);
    RNA_def_property_struct_type(prop, "ShapeKey");
    RNA_def_property_flag(prop, PROP_EDITABLE);
    RNA_def_property_pointer_funcs(prop, "rna_ShapeKey_relative_key_get", "rna_ShapeKey_relative_key_set", NULL, NULL);
    RNA_def_property_ui_text(prop, "Relative Key", "Shape used as a relative key");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "mute", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "flag", KEYBLOCK_MUTE);
    RNA_def_property_ui_text(prop, "Mute", "Mute this shape key");
    RNA_def_property_ui_icon(prop, ICON_MUTE_IPO_OFF, 1);
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "slider_min", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "slidermin");
    RNA_def_property_range(prop, -10.0f, 10.0f);
    RNA_def_property_float_funcs(prop, NULL, "rna_ShapeKey_slider_min_set", "rna_ShapeKey_slider_min_range");
    RNA_def_property_ui_text(prop, "Slider Min", "Minimum for slider");

    prop= RNA_def_property(srna, "slider_max", PROP_FLOAT, PROP_NONE);
    RNA_def_property_float_sdna(prop, NULL, "slidermax");
    RNA_def_property_range(prop, -10.0f, 10.0f);
    RNA_def_property_float_default(prop, 1.0f);
    RNA_def_property_float_funcs(prop, NULL, "rna_ShapeKey_slider_max_set", "rna_ShapeKey_slider_max_range");
    RNA_def_property_ui_text(prop, "Slider Max", "Maximum for slider");

    prop= RNA_def_property(srna, "data", PROP_COLLECTION, PROP_NONE);
    RNA_def_property_collection_sdna(prop, NULL, "data", "totelem");
    RNA_def_property_struct_type(prop, "UnknownType");
    RNA_def_property_ui_text(prop, "Data", "");
    RNA_def_property_collection_funcs(prop, "rna_ShapeKey_data_begin", NULL, NULL, "rna_ShapeKey_data_get", "rna_ShapeKey_data_length", NULL, NULL, NULL);
}

static void rna_def_key(BlenderRNA *brna)
{
    StructRNA *srna;
    PropertyRNA *prop;

    srna= RNA_def_struct(brna, "Key", "ID");
    RNA_def_struct_ui_text(srna, "Key", "Shape keys datablock containing different shapes of geometric datablocks");
    RNA_def_struct_ui_icon(srna, ICON_SHAPEKEY_DATA);

    prop= RNA_def_property(srna, "reference_key", PROP_POINTER, PROP_NONE);
    RNA_def_property_flag(prop, PROP_NEVER_NULL);
    RNA_def_property_clear_flag(prop, PROP_EDITABLE);
    RNA_def_property_pointer_sdna(prop, NULL, "refkey");
    RNA_def_property_ui_text(prop, "Reference Key", "");

    prop= RNA_def_property(srna, "key_blocks", PROP_COLLECTION, PROP_NONE);
    RNA_def_property_collection_sdna(prop, NULL, "block", NULL);
    RNA_def_property_struct_type(prop, "ShapeKey");
    RNA_def_property_ui_text(prop, "Key Blocks", "Shape keys");

    rna_def_animdata_common(srna);

    prop= RNA_def_property(srna, "user", PROP_POINTER, PROP_NONE);
    RNA_def_property_flag(prop, PROP_NEVER_NULL);
    RNA_def_property_pointer_sdna(prop, NULL, "from");
    RNA_def_property_ui_text(prop, "User", "Datablock using these shape keys");

    prop= RNA_def_property(srna, "use_relative", PROP_BOOLEAN, PROP_NONE);
    RNA_def_property_boolean_sdna(prop, NULL, "type", KEY_RELATIVE);
    RNA_def_property_ui_text(prop, "Relative", "Make shape keys relative");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");

    prop= RNA_def_property(srna, "slurph", PROP_INT, PROP_UNSIGNED);
    RNA_def_property_int_sdna(prop, NULL, "slurph");
    RNA_def_property_range(prop, -500, 500);
    RNA_def_property_ui_text(prop, "Slurph", "Create a delay (in frames) in applying keypositions, first vertex goes first");
    RNA_def_property_update(prop, 0, "rna_Key_update_data");
}

void RNA_def_key(BlenderRNA *brna)
{
    rna_def_key(brna);
    rna_def_keyblock(brna);
    rna_def_keydata(brna);
}

#endif