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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2005 Blender Foundation. All rights reserved. */
/** \file
* \ingroup modifiers
*/
#include <string.h>
#include "BLI_utildefines.h"
#include "BLT_translation.h"
#include "DNA_defaults.h"
#include "DNA_object_types.h"
#include "DNA_screen_types.h"
#include "BKE_context.h"
#include "BKE_editmesh.h"
#include "BKE_lattice.h"
#include "BKE_lib_id.h"
#include "BKE_lib_query.h"
#include "BKE_mesh.h"
#include "BKE_mesh_wrapper.h"
#include "BKE_modifier.h"
#include "BKE_screen.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "RNA_access.h"
#include "RNA_prototypes.h"
#include "DEG_depsgraph_query.h"
#include "MEM_guardedalloc.h"
#include "MOD_ui_common.h"
#include "MOD_util.h"
static void initData(ModifierData *md)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(lmd, modifier));
MEMCPY_STRUCT_AFTER(lmd, DNA_struct_default_get(LatticeModifierData), modifier);
}
static void requiredDataMask(Object *UNUSED(ob),
ModifierData *md,
CustomData_MeshMasks *r_cddata_masks)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
/* ask for vertexgroups if we need them */
if (lmd->name[0] != '\0') {
r_cddata_masks->vmask |= CD_MASK_MDEFORMVERT;
}
}
static bool isDisabled(const struct Scene *UNUSED(scene),
ModifierData *md,
bool UNUSED(userRenderParams))
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
/* The object type check is only needed here in case we have a placeholder
* object assigned (because the library containing the lattice is missing).
*
* In other cases it should be impossible to have a type mismatch.
*/
return !lmd->object || lmd->object->type != OB_LATTICE;
}
static void foreachIDLink(ModifierData *md, Object *ob, IDWalkFunc walk, void *userData)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
walk(userData, ob, (ID **)&lmd->object, IDWALK_CB_NOP);
}
static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
if (lmd->object != NULL) {
DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_GEOMETRY, "Lattice Modifier");
DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_TRANSFORM, "Lattice Modifier");
}
DEG_add_depends_on_transform_relation(ctx->node, "Lattice Modifier");
}
static void deformVerts(ModifierData *md,
const ModifierEvalContext *ctx,
struct Mesh *mesh,
float (*vertexCos)[3],
int verts_num)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
struct Mesh *mesh_src = MOD_deform_mesh_eval_get(
ctx->object, NULL, mesh, NULL, verts_num, false);
MOD_previous_vcos_store(md, vertexCos); /* if next modifier needs original vertices */
BKE_lattice_deform_coords_with_mesh(lmd->object,
ctx->object,
vertexCos,
verts_num,
lmd->flag,
lmd->name,
lmd->strength,
mesh_src);
if (!ELEM(mesh_src, NULL, mesh)) {
BKE_id_free(NULL, mesh_src);
}
}
static void deformVertsEM(ModifierData *md,
const ModifierEvalContext *ctx,
struct BMEditMesh *em,
struct Mesh *mesh,
float (*vertexCos)[3],
int verts_num)
{
if (mesh != NULL) {
deformVerts(md, ctx, mesh, vertexCos, verts_num);
return;
}
LatticeModifierData *lmd = (LatticeModifierData *)md;
MOD_previous_vcos_store(md, vertexCos); /* if next modifier needs original vertices */
BKE_lattice_deform_coords_with_editmesh(
lmd->object, ctx->object, vertexCos, verts_num, lmd->flag, lmd->name, lmd->strength, em);
}
static void panel_draw(const bContext *UNUSED(C), Panel *panel)
{
uiLayout *layout = panel->layout;
PointerRNA ob_ptr;
PointerRNA *ptr = modifier_panel_get_property_pointers(panel, &ob_ptr);
uiLayoutSetPropSep(layout, true);
uiItemR(layout, ptr, "object", 0, NULL, ICON_NONE);
modifier_vgroup_ui(layout, ptr, &ob_ptr, "vertex_group", "invert_vertex_group", NULL);
uiItemR(layout, ptr, "strength", UI_ITEM_R_SLIDER, NULL, ICON_NONE);
modifier_panel_end(layout, ptr);
}
static void panelRegister(ARegionType *region_type)
{
modifier_panel_register(region_type, eModifierType_Lattice, panel_draw);
}
ModifierTypeInfo modifierType_Lattice = {
/* name */ N_("Lattice"),
/* structName */ "LatticeModifierData",
/* structSize */ sizeof(LatticeModifierData),
/* srna */ &RNA_LatticeModifier,
/* type */ eModifierTypeType_OnlyDeform,
/* flags */ eModifierTypeFlag_AcceptsCVs | eModifierTypeFlag_AcceptsVertexCosOnly |
eModifierTypeFlag_SupportsEditmode,
/* icon */ ICON_MOD_LATTICE,
/* copyData */ BKE_modifier_copydata_generic,
/* deformVerts */ deformVerts,
/* deformMatrices */ NULL,
/* deformVertsEM */ deformVertsEM,
/* deformMatricesEM */ NULL,
/* modifyMesh */ NULL,
/* modifyGeometrySet */ NULL,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ NULL,
/* isDisabled */ isDisabled,
/* updateDepsgraph */ updateDepsgraph,
/* dependsOnTime */ NULL,
/* dependsOnNormals */ NULL,
/* foreachIDLink */ foreachIDLink,
/* foreachTexLink */ NULL,
/* freeRuntimeData */ NULL,
/* panelRegister */ panelRegister,
/* blendWrite */ NULL,
/* blendRead */ NULL,
};
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