114 lines
2.3 KiB
C
114 lines
2.3 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_string.h"
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#include "BKE_context.h"
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#include "BKE_unit.h"
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#include "DNA_gpencil_legacy_types.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 (GPencil Strokes Opacity)
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* \{ */
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static void applyGPOpacity(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_("Opacity: %s"), c);
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}
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else {
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SNPRINTF(str, TIP_("Opacity: %3f"), ratio);
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}
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bool recalc = false;
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FOREACH_TRANS_DATA_CONTAINER (t, tc) {
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TransData *td = tc->data;
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bGPdata *gpd = td->ob->data;
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const bool is_curve_edit = (bool)GPENCIL_CURVE_EDIT_SESSIONS_ON(gpd);
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/* Only recalculate data when in curve edit mode. */
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if (is_curve_edit) {
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recalc = true;
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}
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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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*td->val = td->ival * ratio;
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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(*td->val, 0.0f, 1.0f);
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}
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}
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}
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if (recalc) {
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recalcData(t);
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}
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ED_area_status_text(t->area, str);
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}
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void initGPOpacity(TransInfo *t)
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{
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t->mode = TFM_GPENCIL_OPACITY;
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t->transform = applyGPOpacity;
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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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#ifdef USE_NUM_NO_ZERO
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t->num.val_flag[0] |= NUM_NO_ZERO;
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#endif
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t->flag |= T_NO_CONSTRAINT;
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}
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/** \} */
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