Differential D5819 Diff 18274 source/blender/editors/transform/transform_op_mode_trackball.c

Changeset View

Standalone View

source/blender/editors/transform/transform_op_mode_trackball.c

This file was added.

				/*
				* 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 edtransform
				*/

				#include "MEM_guardedalloc.h"

				#include "BLI_math.h"
				#include "BLI_string.h"

				#include "BLT_translation.h"

				#include "BKE_context.h"
				#include "BKE_unit.h"

				#include "RNA_define.h"

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

				#include "UI_interface.h"

				#include "ED_screen.h"

				#include "transform.h"
				#include "transform_op.h"

				const char OP_TRACKBALL[] = "TRANSFORM_OT_trackball";

				/* -------------------------------------------------------------------- */
				/* Transform (Rotation - Trackball) */

				/** \name Transform Rotation - Trackball
				* \{ */

				static void applyTrackballValue(TransInfo *t,
				const float axis1[3],
				const float axis2[3],
				const float angles[2])
				{
				float mat[3][3];
				float axis[3];
				float angle;
				int i;

				mul_v3_v3fl(axis, axis1, angles[0]);
				madd_v3_v3fl(axis, axis2, angles[1]);
				angle = normalize_v3(axis);
				axis_angle_normalized_to_mat3(mat, axis, angle);

				FOREACH_TRANS_DATA_CONTAINER (t, tc) {
				TransData *td = tc->data;
				for (i = 0; i < tc->data_len; i++, td++) {
				if (td->flag & TD_NOACTION) {
				break;
				}

				if (td->flag & TD_SKIP) {
				continue;
				}

				if (t->flag & T_PROP_EDIT) {
				axis_angle_normalized_to_mat3(mat, axis, td->factor * angle);
				}

				ElementRotation(t, tc, td, mat, t->around);
				}
				}
				}

				static void applyTrackball(TransInfo *t, const int UNUSED(mval[2]))
				{
				char str[UI_MAX_DRAW_STR];
				size_t ofs = 0;
				float axis1[3], axis2[3];
				#if 0 /* UNUSED */
				float mat[3][3], totmat[3][3], smat[3][3];
				#endif
				float phi[2];

				copy_v3_v3(axis1, t->persinv[0]);
				copy_v3_v3(axis2, t->persinv[1]);
				normalize_v3(axis1);
				normalize_v3(axis2);

				copy_v2_v2(phi, t->values);

				snapGridIncrement(t, phi);

				applyNumInput(&t->num, phi);

				copy_v2_v2(t->values_final, phi);

				if (hasNumInput(&t->num)) {
				char c[NUM_STR_REP_LEN * 2];

				outputNumInput(&(t->num), c, &t->scene->unit);

				ofs += BLI_snprintf(str + ofs,
				sizeof(str) - ofs,
				TIP_("Trackball: %s %s %s"),
				&c[0],
				&c[NUM_STR_REP_LEN],
				t->proptext);
				}
				else {
				ofs += BLI_snprintf(str + ofs,
				sizeof(str) - ofs,
				TIP_("Trackball: %.2f %.2f %s"),
				RAD2DEGF(phi[0]),
				RAD2DEGF(phi[1]),
				t->proptext);
				}

				if (t->flag & T_PROP_EDIT_ALL) {
				ofs += BLI_snprintf(
				str + ofs, sizeof(str) - ofs, TIP_(" Proportional size: %.2f"), t->prop_size);
				}

				#if 0 /* UNUSED */
				axis_angle_normalized_to_mat3(smat, axis1, phi[0]);
				axis_angle_normalized_to_mat3(totmat, axis2, phi[1]);

				mul_m3_m3m3(mat, smat, totmat);

				// TRANSFORM_FIX_ME
				//copy_m3_m3(t->mat, mat); // used in gizmo
				#endif

				applyTrackballValue(t, axis1, axis2, phi);

				recalcData(t);

				ED_area_status_text(t->sa, str);
				}

				void initTrackball(TransInfo *t)
				{
				t->mode = TFM_TRACKBALL;
				t->transform = applyTrackball;

				initMouseInputMode(t, &t->mouse, INPUT_TRACKBALL);

				t->idx_max = 1;
				t->num.idx_max = 1;
				t->snap[0] = 0.0f;
				t->snap[1] = DEG2RAD(5.0);
				t->snap[2] = DEG2RAD(1.0);

				copy_v3_fl(t->num.val_inc, t->snap[2]);
				t->num.unit_sys = t->scene->unit.system;
				t->num.unit_use_radians = (t->scene->unit.system_rotation == USER_UNIT_ROT_RADIANS);
				t->num.unit_type[0] = B_UNIT_ROTATION;
				t->num.unit_type[1] = B_UNIT_ROTATION;

				t->flag \|= T_NO_CONSTRAINT;
				}
				/** \} */

				void TRANSFORM_OT_trackball(struct wmOperatorType *ot)
				{
				/* identifiers */
				ot->name = "Trackball";
				ot->description = "Trackball style rotation of selected items";
				ot->idname = OP_TRACKBALL;
				ot->flag = OPTYPE_REGISTER \| OPTYPE_UNDO \| OPTYPE_BLOCKING;

				/* api callbacks */
				ot->invoke = transform_invoke;
				ot->exec = transform_exec;
				ot->modal = transform_modal;
				ot->cancel = transform_cancel;
				ot->poll = ED_operator_screenactive;
				ot->poll_property = transform_poll_property;

				/* Maybe we could use float_vector_xyz here too? */
				RNA_def_float_rotation(
				ot->srna, "value", 2, NULL, -FLT_MAX, FLT_MAX, "Angle", "", -FLT_MAX, FLT_MAX);

				WM_operatortype_props_advanced_begin(ot);

				Transform_Properties(ot, P_PROPORTIONAL \| P_MIRROR \| P_SNAP \| P_GPENCIL_EDIT \| P_CENTER);
				}