Merge pull request #5814 from Lawrence37/perspective-lines

GUI improvements for perspective correction

rtengine/procparams.h

@@ -932,6 +932,7 @@ struct LensProfParams {
   */
 struct PerspectiveParams {
     Glib::ustring method;
+    bool    render;
     double  horizontal;
     double  vertical;
     double  camera_crop_factor;
@@ -946,6 +947,10 @@ struct PerspectiveParams {
     double  projection_shift_horiz;
     double  projection_shift_vert;
     double  projection_yaw;
+    /** A line is stored as 4 integers in this order: x1, y1, x2, y2 */
+    std::vector<int> control_line_values;
+    /** 0 is vertical, 1 is horizontal, undefined otherwise. */
+    std::vector<int> control_line_types;
 
     PerspectiveParams();