Move toolpaths preview to the plater dialog

xs/src/libslic3r/Print.cpp

@@ -290,6 +290,19 @@ Print::invalidate_all_steps()
     return invalidated;
 }
 
+// returns true if an object step is done on all objects
+// and there's at least one object
+bool
+Print::step_done(PrintObjectStep step) const
+{
+    if (this->objects.empty()) return false;
+    FOREACH_OBJECT(this, object) {
+        if (!(*object)->state.is_done(step))
+            return false;
+    }
+    return true;
+}
+
 // returns 0-based indices of used extruders
 std::set<size_t>
 Print::extruders() const

xs/src/libslic3r/Print.hpp

@@ -178,6 +178,7 @@ class Print
     bool invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys);
     bool invalidate_step(PrintStep step);
     bool invalidate_all_steps();
+    bool step_done(PrintObjectStep step) const;
     
     void add_model_object(ModelObject* model_object, int idx = -1);
     bool apply_config(DynamicPrintConfig config);

xs/xsp/Print.xsp

@@ -156,6 +156,8 @@ _constant()
     bool invalidate_all_steps();
     bool step_done(PrintStep step)
         %code%{ RETVAL = THIS->state.is_done(step); %};
+    bool object_step_done(PrintObjectStep step)
+        %code%{ RETVAL = THIS->step_done(step); %};
     void set_step_done(PrintStep step)
         %code%{ THIS->state.set_done(step); %};
     void set_step_started(PrintStep step)