119 lines
2.9 KiB
C
119 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
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/** \file
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* \ingroup edtransform
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*/
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#include <stdlib.h>
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#include "BLI_math.h"
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#include "BLI_math_bits.h"
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#include "BLI_string.h"
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#include "BKE_context.h"
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#include "BKE_unit.h"
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#include "ED_screen.h"
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#include "UI_interface.h"
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#include "BLT_translation.h"
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#include "transform.h"
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#include "transform_convert.h"
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#include "transform_snap.h"
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#include "transform_mode.h"
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/* -------------------------------------------------------------------- */
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/** \name Transform (Curve Shrink/Fatten)
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* \{ */
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static void applyCurveShrinkFatten(TransInfo *t, const int UNUSED(mval[2]))
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{
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float ratio;
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int i;
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char str[UI_MAX_DRAW_STR];
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ratio = t->values[0] + t->values_modal_offset[0];
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transform_snap_increment(t, &ratio);
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applyNumInput(&t->num, &ratio);
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t->values_final[0] = ratio;
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/* header print for NumInput */
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if (hasNumInput(&t->num)) {
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char c[NUM_STR_REP_LEN];
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outputNumInput(&(t->num), c, &t->scene->unit);
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SNPRINTF(str, TIP_("Shrink/Fatten: %s"), c);
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}
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else {
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SNPRINTF(str, TIP_("Shrink/Fatten: %3f"), ratio);
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}
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FOREACH_TRANS_DATA_CONTAINER (t, tc) {
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TransData *td = tc->data;
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for (i = 0; i < tc->data_len; i++, td++) {
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if (td->flag & TD_SKIP) {
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continue;
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}
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if (td->val) {
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if (td->ival == 0.0f && ratio > 1.0f) {
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/* Allow Shrink/Fatten for zero radius. */
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*td->val = (ratio - 1.0f) * uint_as_float(POINTER_AS_UINT(t->custom.mode.data));
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}
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else {
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*td->val = td->ival * ratio;
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}
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/* Apply proportional editing. */
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*td->val = interpf(*td->val, td->ival, td->factor);
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CLAMP_MIN(*td->val, 0.0f);
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}
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}
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}
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recalcData(t);
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ED_area_status_text(t->area, str);
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}
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void initCurveShrinkFatten(TransInfo *t)
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{
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t->mode = TFM_CURVE_SHRINKFATTEN;
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t->transform = applyCurveShrinkFatten;
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initMouseInputMode(t, &t->mouse, INPUT_SPRING);
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t->idx_max = 0;
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t->num.idx_max = 0;
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t->snap[0] = 0.1f;
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t->snap[1] = t->snap[0] * 0.1f;
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copy_v3_fl(t->num.val_inc, t->snap[0]);
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t->num.unit_sys = t->scene->unit.system;
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t->num.unit_type[0] = B_UNIT_NONE;
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t->flag |= T_NO_CONSTRAINT;
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float scale_factor = 0.0f;
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if (((t->spacetype == SPACE_VIEW3D) && (t->region->regiontype == RGN_TYPE_WINDOW) &&
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(t->data_len_all == 1)) ||
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(t->data_len_all == 3 && TRANS_DATA_CONTAINER_FIRST_OK(t)->data[0].val == NULL))
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{
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/* For cases where only one point on the curve is being transformed and the radius of that
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* point is zero, use the factor to multiply the offset of the ratio and allow scaling.
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* Note that for bezier curves, 3 TransData equals 1 point in most cases. */
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RegionView3D *rv3d = t->region->regiondata;
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scale_factor = rv3d->pixsize * t->mouse.factor * t->zfac;
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}
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t->custom.mode.data = POINTER_FROM_UINT(float_as_uint(scale_factor));
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}
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/** \} */
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