From 80f3b32e066b17da9592aeb510e2b9afaadff632 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Fri, 19 Jul 2013 10:49:23 +0000
Subject: patch [#35789] Quick hack more/less tool for lattices by Pedro Riera
 (priera), Andrey Dubravin, I also made some changes.

---
 source/blender/editors/object/object_lattice.c | 106 +++++++++++++++++++++++++
 1 file changed, 106 insertions(+)

(limited to 'source/blender/editors/object/object_lattice.c')

diff --git a/source/blender/editors/object/object_lattice.c b/source/blender/editors/object/object_lattice.c
index 0ae4edb4ae3..0de468bac43 100644
--- a/source/blender/editors/object/object_lattice.c
+++ b/source/blender/editors/object/object_lattice.c
@@ -38,6 +38,7 @@
 #include "BLI_math.h"
 #include "BLI_utildefines.h"
 #include "BLI_rand.h"
+#include "BLI_bitmap.h"
 
 #include "DNA_curve_types.h"
 #include "DNA_key_types.h"
@@ -55,6 +56,7 @@
 #include "BKE_lattice.h"
 #include "BKE_deform.h"
 #include "BKE_report.h"
+#include "BKE_utildefines.h"
 
 #include "ED_lattice.h"
 #include "ED_object.h"
@@ -224,6 +226,110 @@ void LATTICE_OT_select_random(wmOperatorType *ot)
 	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
+/************************** Select More/Less Operator *************************/
+
+static bool lattice_test_bitmap_uvw(Lattice *lt, BLI_bitmap selpoints, int u, int v, int w, const bool selected)
+{
+	if ((u < 0 || u >= lt->pntsu) ||
+	    (v < 0 || v >= lt->pntsv) ||
+	    (w < 0 || w >= lt->pntsw))
+	{
+		return false;
+	}
+	else {
+		int i = BKE_lattice_index_from_uvw(lt, u, v, w);
+		if (lt->def[i].hide == 0) {
+			return (BLI_BITMAP_GET(selpoints, i) != 0) == selected;
+		}
+		return false;
+	}
+}
+
+static int lattice_select_more_less(bContext *C, const bool select)
+{
+	Object *obedit = CTX_data_edit_object(C);
+	Lattice *lt = ((Lattice *)obedit->data)->editlatt->latt;
+	BPoint *bp;
+	const int tot = lt->pntsu * lt->pntsv * lt->pntsw;
+	int i, w, u, v;
+	BLI_bitmap selpoints;
+
+	lt->actbp = LT_ACTBP_NONE;
+
+	bp = lt->def;
+	selpoints = BLI_BITMAP_NEW(tot, __func__);
+	for (i = 0; i < tot; i++, bp++) {
+		if (bp->f1 & SELECT) {
+			BLI_BITMAP_SET(selpoints, i);
+		}
+	}
+
+	bp = lt->def;
+	for (w = 0; w < lt->pntsw; w++) {
+		for (v = 0; v < lt->pntsv; v++) {
+			for (u = 0; u < lt->pntsu; u++) {
+				if ((bp->hide == 0) && (((bp->f1 & SELECT) == 0) == select)) {
+					if (lattice_test_bitmap_uvw(lt, selpoints, u + 1, v, w, select) ||
+					    lattice_test_bitmap_uvw(lt, selpoints, u - 1, v, w, select) ||
+					    lattice_test_bitmap_uvw(lt, selpoints, u, v + 1, w, select) ||
+					    lattice_test_bitmap_uvw(lt, selpoints, u, v - 1, w, select) ||
+					    lattice_test_bitmap_uvw(lt, selpoints, u, v, w + 1, select) ||
+					    lattice_test_bitmap_uvw(lt, selpoints, u, v, w - 1, select))
+					{
+						BKE_BIT_TEST_SET(bp->f1, select, SELECT);
+					}
+				}
+				bp++;
+			}
+		}
+	}
+
+	MEM_freeN(selpoints);
+
+	WM_event_add_notifier(C, NC_GEOM | ND_SELECT, obedit->data);
+	return OPERATOR_FINISHED;
+}
+
+static int lattice_select_more_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	return lattice_select_more_less(C, true);
+}
+
+static int lattice_select_less_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	return lattice_select_more_less(C, false);
+}
+
+void LATTICE_OT_select_more(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Select More";
+	ot->description = "Select vertex directly linked to already selected ones";
+	ot->idname = "LATTICE_OT_select_more";
+
+	/* api callbacks */
+	ot->exec = lattice_select_more_exec;
+	ot->poll = ED_operator_editlattice;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+void LATTICE_OT_select_less(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Select Less";
+	ot->description = "Deselect vertices at the boundary of each selection region";
+	ot->idname = "LATTICE_OT_select_less";
+
+	/* api callbacks */
+	ot->exec = lattice_select_less_exec;
+	ot->poll = ED_operator_editlattice;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
 /************************** Select All Operator *************************/
 
 void ED_setflagsLatt(Object *obedit, int flag)
-- 
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