Cleanup: Split transform.c in multiple files

Differential Revision: https://developer.blender.org/D5819

1 files changed, 307 insertions, 0 deletions

diff --git a/source/blender/editors/transform/transform_mode_bend.c b/source/blender/editors/transform/transform_mode_bend.c
new file mode 100644
index 00000000000..daa2e583e2f
--- /dev/null
+++ b/source/blender/editors/transform/transform_mode_bend.c
@@ -0,0 +1,307 @@
+/*
+ * 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.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup edtransform
+ */
+
+#include <stdlib.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_gpencil_types.h"
+
+#include "BLI_math.h"
+#include "BLI_string.h"
+
+#include "BKE_context.h"
+#include "BKE_unit.h"
+
+#include "ED_screen.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "UI_interface.h"
+
+#include "BLT_translation.h"
+
+#include "transform.h"
+#include "transform_snap.h"
+#include "transform_mode.h"
+
+/* -------------------------------------------------------------------- */
+/* Transform (Bend) */
+
+/** \name Transform Bend
+ * \{ */
+
+struct BendCustomData {
+  /* All values are in global space. */
+  float warp_sta[3];
+  float warp_end[3];
+
+  float warp_nor[3];
+  float warp_tan[3];
+
+  /* for applying the mouse distance */
+  float warp_init_dist;
+};
+
+static eRedrawFlag handleEventBend(TransInfo *UNUSED(t), const wmEvent *event)
+{
+  eRedrawFlag status = TREDRAW_NOTHING;
+
+  if (event->type == MIDDLEMOUSE && event->val == KM_PRESS) {
+    status = TREDRAW_HARD;
+  }
+
+  return status;
+}
+
+static void Bend(TransInfo *t, const int UNUSED(mval[2]))
+{
+  float vec[3];
+  float pivot_global[3];
+  float warp_end_radius_global[3];
+  int i;
+  char str[UI_MAX_DRAW_STR];
+  const struct BendCustomData *data = t->custom.mode.data;
+  const bool is_clamp = (t->flag & T_ALT_TRANSFORM) == 0;
+
+  union {
+    struct {
+      float angle, scale;
+    };
+    float vector[2];
+  } values;
+
+  /* amount of radians for bend */
+  copy_v2_v2(values.vector, t->values);
+
+#if 0
+  snapGrid(t, angle_rad);
+#else
+  /* hrmf, snapping radius is using 'angle' steps, need to convert to something else
+   * this isnt essential but nicer to give reasonable snapping values for radius */
+  if (t->tsnap.mode & SCE_SNAP_MODE_INCREMENT) {
+    const float radius_snap = 0.1f;
+    const float snap_hack = (t->snap[1] * data->warp_init_dist) / radius_snap;
+    values.scale *= snap_hack;
+    snapGridIncrement(t, values.vector);
+    values.scale /= snap_hack;
+  }
+#endif
+
+  if (applyNumInput(&t->num, values.vector)) {
+    values.scale = values.scale / data->warp_init_dist;
+  }
+
+  copy_v2_v2(t->values_final, values.vector);
+
+  /* header print for NumInput */
+  if (hasNumInput(&t->num)) {
+    char c[NUM_STR_REP_LEN * 2];
+
+    outputNumInput(&(t->num), c, &t->scene->unit);
+
+    BLI_snprintf(str,
+                 sizeof(str),
+                 TIP_("Bend Angle: %s Radius: %s Alt, Clamp %s"),
+                 &c[0],
+                 &c[NUM_STR_REP_LEN],
+                 WM_bool_as_string(is_clamp));
+  }
+  else {
+    /* default header print */
+    BLI_snprintf(str,
+                 sizeof(str),
+                 TIP_("Bend Angle: %.3f Radius: %.4f, Alt, Clamp %s"),
+                 RAD2DEGF(values.angle),
+                 values.scale * data->warp_init_dist,
+                 WM_bool_as_string(is_clamp));
+  }
+
+  values.angle *= -1.0f;
+  values.scale *= data->warp_init_dist;
+
+  /* calc 'data->warp_end' from 'data->warp_end_init' */
+  copy_v3_v3(warp_end_radius_global, data->warp_end);
+  dist_ensure_v3_v3fl(warp_end_radius_global, data->warp_sta, values.scale);
+  /* done */
+
+  /* calculate pivot */
+  copy_v3_v3(pivot_global, data->warp_sta);
+  if (values.angle > 0.0f) {
+    madd_v3_v3fl(pivot_global,
+                 data->warp_tan,
+                 -values.scale * shell_angle_to_dist((float)M_PI_2 - values.angle));
+  }
+  else {
+    madd_v3_v3fl(pivot_global,
+                 data->warp_tan,
+                 +values.scale * shell_angle_to_dist((float)M_PI_2 + values.angle));
+  }
+
+  /* TODO(campbell): xform, compensate object center. */
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    TransData *td = tc->data;
+
+    float warp_sta_local[3];
+    float warp_end_local[3];
+    float warp_end_radius_local[3];
+    float pivot_local[3];
+
+    if (tc->use_local_mat) {
+      sub_v3_v3v3(warp_sta_local, data->warp_sta, tc->mat[3]);
+      sub_v3_v3v3(warp_end_local, data->warp_end, tc->mat[3]);
+      sub_v3_v3v3(warp_end_radius_local, warp_end_radius_global, tc->mat[3]);
+      sub_v3_v3v3(pivot_local, pivot_global, tc->mat[3]);
+    }
+    else {
+      copy_v3_v3(warp_sta_local, data->warp_sta);
+      copy_v3_v3(warp_end_local, data->warp_end);
+      copy_v3_v3(warp_end_radius_local, warp_end_radius_global);
+      copy_v3_v3(pivot_local, pivot_global);
+    }
+
+    for (i = 0; i < tc->data_len; i++, td++) {
+      float mat[3][3];
+      float delta[3];
+      float fac, fac_scaled;
+
+      if (td->flag & TD_NOACTION) {
+        break;
+      }
+
+      if (td->flag & TD_SKIP) {
+        continue;
+      }
+
+      if (UNLIKELY(values.angle == 0.0f)) {
+        copy_v3_v3(td->loc, td->iloc);
+        continue;
+      }
+
+      copy_v3_v3(vec, td->iloc);
+      mul_m3_v3(td->mtx, vec);
+
+      fac = line_point_factor_v3(vec, warp_sta_local, warp_end_radius_local);
+      if (is_clamp) {
+        CLAMP(fac, 0.0f, 1.0f);
+      }
+
+      if (t->options & CTX_GPENCIL_STROKES) {
+        /* grease pencil multiframe falloff */
+        bGPDstroke *gps = (bGPDstroke *)td->extra;
+        if (gps != NULL) {
+          fac_scaled = fac * td->factor * gps->runtime.multi_frame_falloff;
+        }
+        else {
+          fac_scaled = fac * td->factor;
+        }
+      }
+      else {
+        fac_scaled = fac * td->factor;
+      }
+
+      axis_angle_normalized_to_mat3(mat, data->warp_nor, values.angle * fac_scaled);
+      interp_v3_v3v3(delta, warp_sta_local, warp_end_radius_local, fac_scaled);
+      sub_v3_v3(delta, warp_sta_local);
+
+      /* delta is subtracted, rotation adds back this offset */
+      sub_v3_v3(vec, delta);
+
+      sub_v3_v3(vec, pivot_local);
+      mul_m3_v3(mat, vec);
+      add_v3_v3(vec, pivot_local);
+
+      mul_m3_v3(td->smtx, vec);
+
+      /* rotation */
+      if ((t->flag & T_POINTS) == 0) {
+        ElementRotation(t, tc, td, mat, V3D_AROUND_LOCAL_ORIGINS);
+      }
+
+      /* location */
+      copy_v3_v3(td->loc, vec);
+    }
+  }
+
+  recalcData(t);
+
+  ED_area_status_text(t->sa, str);
+}
+
+void initBend(TransInfo *t)
+{
+  const float mval_fl[2] = {UNPACK2(t->mval)};
+  const float *curs;
+  float tvec[3];
+  struct BendCustomData *data;
+
+  t->mode = TFM_BEND;
+  t->transform = Bend;
+  t->handleEvent = handleEventBend;
+
+  setInputPostFct(&t->mouse, postInputRotation);
+  initMouseInputMode(t, &t->mouse, INPUT_ANGLE_SPRING);
+
+  t->idx_max = 1;
+  t->num.idx_max = 1;
+  t->snap[0] = 0.0f;
+  t->snap[1] = SNAP_INCREMENTAL_ANGLE;
+  t->snap[2] = t->snap[1] * 0.2;
+
+  copy_v3_fl(t->num.val_inc, t->snap[1]);
+  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_LENGTH;
+
+  t->flag |= T_NO_CONSTRAINT;
+
+  // copy_v3_v3(t->center, ED_view3d_cursor3d_get(t->scene, t->view));
+  if ((t->flag & T_OVERRIDE_CENTER) == 0) {
+    calculateCenterCursor(t, t->center_global);
+  }
+  calculateCenterLocal(t, t->center_global);
+
+  t->val = 0.0f;
+
+  data = MEM_callocN(sizeof(*data), __func__);
+
+  curs = t->scene->cursor.location;
+  copy_v3_v3(data->warp_sta, curs);
+  ED_view3d_win_to_3d((View3D *)t->sa->spacedata.first, t->ar, curs, mval_fl, data->warp_end);
+
+  copy_v3_v3(data->warp_nor, t->viewinv[2]);
+  normalize_v3(data->warp_nor);
+
+  /* tangent */
+  sub_v3_v3v3(tvec, data->warp_end, data->warp_sta);
+  cross_v3_v3v3(data->warp_tan, tvec, data->warp_nor);
+  normalize_v3(data->warp_tan);
+
+  data->warp_init_dist = len_v3v3(data->warp_end, data->warp_sta);
+
+  t->custom.mode.data = data;
+  t->custom.mode.use_free = true;
+}
+/** \} */