Use self.putValue to write g-code

Mostly as a test of this function. Seems to work.

plugins/PostProcessingPlugin/scripts/PauseAtHeight.py

@@ -204,51 +204,51 @@ class PauseAtHeight(Script):
                     prepend_gcode += ";current layer: {layer}\n".format(layer = current_layer)
 
                 # Retraction
-                prepend_gcode += "M83\n"
+                prepend_gcode += self.putValue(M = 83) + "\n"
                 if retraction_amount != 0:
-                    prepend_gcode += "G1 E-%f F%f\n" % (retraction_amount, retraction_speed * 60)
+                    prepend_gcode += self.putValue(G = 1, E = -retraction_amount, F = retraction_speed * 60) + "\n"
 
                 # Move the head away
-                prepend_gcode += "G1 Z%f F300\n" % (current_z + 1)
-                prepend_gcode += "G1 X%f Y%f F9000\n" % (park_x, park_y)
+                prepend_gcode += self.putValue(G = 1, Z = current_z + 1, F = 300) + "\n"
+                prepend_gcode += self.putValue(G = 1, X = park_x, Y = park_y, F = 9000) + "\n"
                 if current_z < 15:
-                    prepend_gcode += "G1 Z15 F300\n"
+                    prepend_gcode += self.putValue(G = 1, Z = 15, F = 300) + "\n"
 
                 # Disable the E steppers
-                prepend_gcode += "M84 E0\n"
+                prepend_gcode += self.putValue(M = 84, E = 0) + "\n"
 
                 # Set extruder standby temperature
-                prepend_gcode += "M104 S%i; standby temperature\n" % (standby_temperature)
+                prepend_gcode += self.putValue(M = 104, S = standby_temperature) + "; standby temperature\n"
 
                 # Wait till the user continues printing
-                prepend_gcode += "M0 ;Do the actual pause\n"
+                prepend_gcode += self.putValue(M = 0) + ";Do the actual pause\n"
 
                 # Set extruder resume temperature
-                prepend_gcode += "M109 S%i; resume temperature\n" % (resume_temperature)
+                prepend_gcode += self.putValue(M = 109, S = resume_temperature) + "; resume temperature\n"
 
                 # Push the filament back,
                 if retraction_amount != 0:
-                    prepend_gcode += "G1 E%f F%f\n" % (retraction_amount, retraction_speed * 60)
+                    prepend_gcode += self.putValue(G = 1, E = retraction_amount, F = retraction_speed * 60) + "\n"
 
                 # Optionally extrude material
                 if extrude_amount != 0:
-                    prepend_gcode += "G1 E%f F%f\n" % (extrude_amount, extrude_speed * 60)
+                    prepend_gcode += self.putValue(G = 1, E = extrude_amount, F = extrude_speed * 60) + "\n"
 
                 # and retract again, the properly primes the nozzle
                 # when changing filament.
                 if retraction_amount != 0:
-                    prepend_gcode += "G1 E-%f F%f\n" % (retraction_amount, retraction_speed * 60)
+                    prepend_gcode += self.putValue(G = 1, E = -retraction_amount, F = retraction_speed * 60) + "\n"
 
                 # Move the head back
-                prepend_gcode += "G1 Z%f F300\n" % (current_z + 1)
-                prepend_gcode += "G1 X%f Y%f F9000\n" % (x, y)
+                prepend_gcode += self.putValue(G = 1, Z = current_z + 1, F = 300) + "\n"
+                prepend_gcode += self.putValue(G = 1, X = x, Y = y, F = 9000) + "\n"
                 if retraction_amount != 0:
-                    prepend_gcode += "G1 E%f F%f\n" % (retraction_amount, retraction_speed * 60)
-                prepend_gcode += "G1 F9000\n"
-                prepend_gcode += "M82\n"
+                    prepend_gcode += self.putValue(G = 1, E = retraction_amount, F = retraction_speed * 60) + "\n"
+                prepend_gcode += self.putValue(G = 1, F = 9000) + "\n"
+                prepend_gcode += self.putValue(M = 82) + "\n"
 
                 # reset extrude value to pre pause value
-                prepend_gcode += "G92 E%f\n" % (current_e)
+                prepend_gcode += self.putValue(G = 92, E = current_e) + "\n"
 
                 layer = prepend_gcode + layer