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/*
* 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.
*/
/** \file
* \ingroup spview3d
*/
#include "BLI_utildefines.h"
#include "BKE_context.h"
#include "BKE_layer.h"
#include "DNA_object_force_types.h"
#include "DNA_object_types.h"
#include "ED_gizmo_library.h"
#include "ED_screen.h"
#include "UI_resources.h"
#include "MEM_guardedalloc.h"
#include "RNA_access.h"
#include "WM_api.h"
#include "WM_types.h"
#include "view3d_intern.h" /* own include */
/* -------------------------------------------------------------------- */
/** \name Force Field Gizmos
* \{ */
static bool WIDGETGROUP_forcefield_poll(const bContext *C, wmGizmoGroupType *UNUSED(gzgt))
{
View3D *v3d = CTX_wm_view3d(C);
if (v3d->gizmo_flag & (V3D_GIZMO_HIDE | V3D_GIZMO_HIDE_CONTEXT)) {
return false;
}
if ((v3d->gizmo_show_empty & V3D_GIZMO_SHOW_EMPTY_FORCE_FIELD) == 0) {
return false;
}
ViewLayer *view_layer = CTX_data_view_layer(C);
Base *base = BASACT(view_layer);
if (base && BASE_SELECTABLE(v3d, base)) {
Object *ob = base->object;
if (ob->pd && ob->pd->forcefield) {
return true;
}
}
return false;
}
static void WIDGETGROUP_forcefield_setup(const bContext *UNUSED(C), wmGizmoGroup *gzgroup)
{
/* only wind effector for now */
wmGizmoWrapper *wwrapper = MEM_mallocN(sizeof(wmGizmoWrapper), __func__);
gzgroup->customdata = wwrapper;
wwrapper->gizmo = WM_gizmo_new("GIZMO_GT_arrow_3d", gzgroup, NULL);
wmGizmo *gz = wwrapper->gizmo;
RNA_enum_set(gz->ptr, "transform", ED_GIZMO_ARROW_XFORM_FLAG_CONSTRAINED);
ED_gizmo_arrow3d_set_ui_range(gz, -200.0f, 200.0f);
ED_gizmo_arrow3d_set_range_fac(gz, 6.0f);
UI_GetThemeColor3fv(TH_GIZMO_PRIMARY, gz->color);
UI_GetThemeColor3fv(TH_GIZMO_HI, gz->color_hi);
}
static void WIDGETGROUP_forcefield_refresh(const bContext *C, wmGizmoGroup *gzgroup)
{
wmGizmoWrapper *wwrapper = gzgroup->customdata;
wmGizmo *gz = wwrapper->gizmo;
ViewLayer *view_layer = CTX_data_view_layer(C);
Object *ob = OBACT(view_layer);
PartDeflect *pd = ob->pd;
if (pd->forcefield == PFIELD_WIND) {
const float size = (ob->type == OB_EMPTY) ? ob->empty_drawsize : 1.0f;
const float ofs[3] = {0.0f, -size, 0.0f};
PointerRNA field_ptr;
RNA_pointer_create(&ob->id, &RNA_FieldSettings, pd, &field_ptr);
WM_gizmo_set_matrix_location(gz, ob->obmat[3]);
WM_gizmo_set_matrix_rotation_from_z_axis(gz, ob->obmat[2]);
WM_gizmo_set_matrix_offset_location(gz, ofs);
WM_gizmo_set_flag(gz, WM_GIZMO_HIDDEN, false);
WM_gizmo_target_property_def_rna(gz, "offset", &field_ptr, "strength", -1);
}
else {
WM_gizmo_set_flag(gz, WM_GIZMO_HIDDEN, true);
}
}
void VIEW3D_GGT_force_field(wmGizmoGroupType *gzgt)
{
gzgt->name = "Force Field Widgets";
gzgt->idname = "VIEW3D_GGT_force_field";
gzgt->flag |= (WM_GIZMOGROUPTYPE_PERSISTENT | WM_GIZMOGROUPTYPE_3D | WM_GIZMOGROUPTYPE_SCALE |
WM_GIZMOGROUPTYPE_DEPTH_3D);
gzgt->poll = WIDGETGROUP_forcefield_poll;
gzgt->setup = WIDGETGROUP_forcefield_setup;
gzgt->setup_keymap = WM_gizmogroup_setup_keymap_generic_maybe_drag;
gzgt->refresh = WIDGETGROUP_forcefield_refresh;
}
/** \} */
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