[Bf-blender-cvs] [d0d9490ac00] soc-2020-greasepencil-curve: GPencil: Implement select alternate curve points

[Falk David]

Commit: d0d9490ac00967ddb3451502ca2423b0e1ec0bab
Author: Falk David
Date:   Wed Jul 15 10:14:19 2020 +0200
Branches: soc-2020-greasepencil-curve
https://developer.blender.org/rBd0d9490ac00967ddb3451502ca2423b0e1ec0bab

GPencil: Implement select alternate curve points

===================================================================

M       source/blender/editors/gpencil/gpencil_select.c

===================================================================

diff --git a/source/blender/editors/gpencil/gpencil_select.c 
b/source/blender/editors/gpencil/gpencil_select.c
index 1ce6db51cab..4aba4420c28 100644
--- a/source/blender/editors/gpencil/gpencil_select.c
+++ b/source/blender/editors/gpencil/gpencil_select.c
@@ -361,7 +361,43 @@ static int gpencil_select_alternate_exec(bContext *C, 
wmOperator *op)
 
   bool changed = false;
   if (is_curve_edit) {
-    /* TODO: do curve select */
+    GP_EDITABLE_CURVES_BEGIN(gps_iter, C, gpl, gps, gpc)
+    {
+      if ((gps->flag & GP_STROKE_SELECT) && (gps->totpoints > 1)) {
+        int idx = 0;
+        int start = 0;
+        if (unselect_ends) {
+          start = 1;
+        }
+
+        for (int i = start; i < gpc->tot_curve_points; i++) {
+          bGPDcurve_point *gpc_pt = &gpc->curve_points[i];
+          if ((idx % 2) == 0) {
+            gpc_pt->flag |= GP_SPOINT_SELECT;
+            BEZT_SEL_ALL(&gpc_pt->bezt);
+          }
+          else {
+            gpc_pt->flag &= ~GP_SPOINT_SELECT;
+            BEZT_DESEL_ALL(&gpc_pt->bezt);
+          }
+          idx++;
+        }
+
+        if (unselect_ends) {
+          bGPDcurve_point *gpc_pt = &gpc->curve_points[0];
+          gpc_pt->flag &= ~GP_SPOINT_SELECT;
+          BEZT_DESEL_ALL(&gpc_pt->bezt);
+
+          gpc_pt = &gpc->curve_points[gpc->tot_curve_points - 1];
+          gpc_pt->flag &= ~GP_SPOINT_SELECT;
+          BEZT_DESEL_ALL(&gpc_pt->bezt);
+        }
+
+        BKE_gpencil_curve_sync_selection(gps);
+        changed = true;
+      }
+    }
+    GP_EDITABLE_CURVES_END(gps_iter);
   }
   else {
     /* select all points in selected strokes */

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