Transform: Split transform_conversions into multiple files.

Part of T68836

`transform conversions.c` is a file that is getting too big (almost 10,000 lines).
So it's a good idea to split it into smaller files.

differential revision: https://developer.blender.org/D5677

1 files changed, 130 insertions, 0 deletions

diff --git a/source/blender/editors/transform/transform_convert_mball.c b/source/blender/editors/transform/transform_convert_mball.c
new file mode 100644
index 00000000000..5d7e36cc834
--- /dev/null
+++ b/source/blender/editors/transform/transform_convert_mball.c
@@ -0,0 +1,130 @@
+/*
+ * 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 "DNA_meta_types.h"
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_math.h"
+
+#include "BKE_context.h"
+#include "BKE_report.h"
+
+#include "transform.h"
+#include "transform_convert.h"
+
+/* -------------------------------------------------------------------- */
+/** \name Meta Elements Transform Creation
+ *
+ * \{ */
+
+void createTransMBallVerts(TransInfo *t)
+{
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    MetaBall *mb = (MetaBall *)tc->obedit->data;
+    MetaElem *ml;
+    TransData *td;
+    TransDataExtension *tx;
+    float mtx[3][3], smtx[3][3];
+    int count = 0, countsel = 0;
+    const bool is_prop_edit = (t->flag & T_PROP_EDIT) != 0;
+
+    /* count totals */
+    for (ml = mb->editelems->first; ml; ml = ml->next) {
+      if (ml->flag & SELECT) {
+        countsel++;
+      }
+      if (is_prop_edit) {
+        count++;
+      }
+    }
+
+    /* note: in prop mode we need at least 1 selected */
+    if (countsel == 0) {
+      continue;
+    }
+
+    if (is_prop_edit) {
+      tc->data_len = count;
+    }
+    else {
+      tc->data_len = countsel;
+    }
+
+    td = tc->data = MEM_callocN(tc->data_len * sizeof(TransData), "TransObData(MBall EditMode)");
+    tx = tc->data_ext = MEM_callocN(tc->data_len * sizeof(TransDataExtension),
+                                    "MetaElement_TransExtension");
+
+    copy_m3_m4(mtx, tc->obedit->obmat);
+    pseudoinverse_m3_m3(smtx, mtx, PSEUDOINVERSE_EPSILON);
+
+    for (ml = mb->editelems->first; ml; ml = ml->next) {
+      if (is_prop_edit || (ml->flag & SELECT)) {
+        td->loc = &ml->x;
+        copy_v3_v3(td->iloc, td->loc);
+        copy_v3_v3(td->center, td->loc);
+
+        quat_to_mat3(td->axismtx, ml->quat);
+
+        if (ml->flag & SELECT) {
+          td->flag = TD_SELECTED | TD_USEQUAT | TD_SINGLESIZE;
+        }
+        else {
+          td->flag = TD_USEQUAT;
+        }
+
+        copy_m3_m3(td->smtx, smtx);
+        copy_m3_m3(td->mtx, mtx);
+
+        td->ext = tx;
+
+        /* Radius of MetaElem (mass of MetaElem influence) */
+        if (ml->flag & MB_SCALE_RAD) {
+          td->val = &ml->rad;
+          td->ival = ml->rad;
+        }
+        else {
+          td->val = &ml->s;
+          td->ival = ml->s;
+        }
+
+        /* expx/expy/expz determine "shape" of some MetaElem types */
+        tx->size = &ml->expx;
+        tx->isize[0] = ml->expx;
+        tx->isize[1] = ml->expy;
+        tx->isize[2] = ml->expz;
+
+        /* quat is used for rotation of MetaElem */
+        tx->quat = ml->quat;
+        copy_qt_qt(tx->iquat, ml->quat);
+
+        tx->rot = NULL;
+
+        td++;
+        tx++;
+      }
+    }
+  }
+}
+
+/** \} */