Initial untested implementation of gcoder-based printing.

printcore.py

@@ -22,6 +22,7 @@ import time, getopt, sys
 import platform, os
 from collections import deque
 from GCodeAnalyzer import GCodeAnalyzer
+from printrun import gcoder
 
 def control_ttyhup(port, disable_hup):
     """Controls the HUPCL"""
@@ -48,7 +49,7 @@ class printcore():
         self.clear = 0 #clear to send, enabled after responses
         self.online = False #The printer has responded to the initial command and is active
         self.printing = False #is a print currently running, true if printing, false if paused
-        self.mainqueue = []
+        self.mainqueue = None
         self.priqueue = []
         self.queueindex = 0
         self.lineno = 0
@@ -204,8 +205,8 @@ class printcore():
     def _checksum(self, command):
         return reduce(lambda x, y:x^y, map(ord, command))
 
-    def startprint(self, data, startindex = 0):
-        """Start a print, data is an array of gcode commands.
+    def startprint(self, gcode, startindex = 0):
+        """Start a print, gcode is an array of gcode commands.
         returns True on success, False if already printing.
         The print queue will be replaced with the contents of the data array, the next line will be set to 0 and the firmware notified.
         Printing will then start in a parallel thread.
@@ -213,12 +214,12 @@ class printcore():
         if self.printing or not self.online or not self.printer:
             return False
         self.printing = True
-        self.mainqueue = [] + data
+        self.mainqueue = gcode
         self.lineno = 0
         self.queueindex = startindex
         self.resendfrom = -1
         self._send("M110", -1, True)
-        if len(data) == 0:
+        if not gcode.lines:
             return True
         self.clear = False
         self.print_thread = Thread(target = self._print)
@@ -264,8 +265,6 @@ class printcore():
         self.pauseE = self.analyzer.e-self.analyzer.eOffset;
         self.pauseF = self.analyzer.f;
         self.pauseRelative = self.analyzer.relative;
-        
-        
 
     def resume(self):
         """Resumes a paused print.
@@ -380,14 +379,14 @@ class printcore():
         if self.priqueue:
             self._send(self.priqueue.pop(0))
             return
-        if self.printing and self.queueindex < len(self.mainqueue):
-            tline = self.mainqueue[self.queueindex]
+        if self.printing and self.queueindex < len(self.mainqueue.idxs):
+            (layer, line) = self.mainqueue.idxs[self.queueindex]
+            tline = self.mainqueue.all_layers[layer].lines[line].raw
             #check for host command
             if tline.lstrip().startswith(";@"):
-              #it is a host command: pop it from the list
-              self.mainqueue.pop(self.queueindex)
-              self.processHostCommand(tline)
-              return
+                self.processHostCommand(tline)
+                self.queueindex += 1
+                return
       
             tline = tline.split(";")[0]
             if len(tline) > 0:
@@ -455,7 +454,8 @@ if __name__ == '__main__':
     p = printcore(port, baud)
     p.loud = loud
     time.sleep(2)
-    gcode = [i.replace("\n", "") for i in open(filename)]
+    gcode = [i.strip() for i in open(filename)]
+    gcode = gcoder.GCode(gcode)
     p.startprint(gcode)
 
     try:

printrun/gcoder.py

@@ -130,6 +130,12 @@ class GCode(object):
     layers = None
     all_layers = None
     idxs = None
+    append_layer = None
+    append_layer_id = None
+
+    imperial = False
+    relative = False
+    relative_e = False
 
     def __init__(self,data):
         self.lines = [Line(l2) for l2 in
@@ -138,11 +144,26 @@ class GCode(object):
         self._preprocess()
         self._create_layers()
 
-    def _preprocess(self):
+    def __len__(self):
+        return len(self.idxs)
+
+    def append(self, command):
+        command = command.strip()
+        if not command:
+            return
+        gline = Line(command)
+        self.lines.append(gline)
+        self._preprocess([gline])
+        self.append_layer.lines.append(gline)
+        self.idxs.append((self.append_layer_id, len(self.append_layer.lines)))
+
+    def _preprocess(self, lines = None):
         """Checks for G20, G21, G90 and G91, sets imperial and relative flags"""
-        imperial = False
-        relative = False
-        relative_e = False
+        if not lines:
+            lines = self.lines
+        imperial = self.imperial
+        relative = self.relative
+        relative_e = self.relative_e
         for line in self.lines:
             if line.is_move:
                 line.relative = relative
@@ -163,6 +184,9 @@ class GCode(object):
                 relative_e = True
             if line.command[0] == "G":
                 line.parse_coordinates(imperial)
+        self.imperial = imperial
+        self.relative = relative
+        self.relative_e = relative_e
     
     # FIXME : looks like this needs to be tested with list Z on move
     def _create_layers(self):
@@ -218,6 +242,9 @@ class GCode(object):
             else:
                 del layers[idx]
 
+        self.append_layer_id = len(all_layers)
+        self.append_layer = Layer([])
+        all_layers.append(self.append_layer)
         self.all_layers = all_layers
         self.layers = layers
         self.idxs = idxs

pronsole.py

@@ -629,7 +629,7 @@ class pronsole(cmd.Cmd):
         self.log(_("Uploading %s") % self.filename)
         self.p.send_now("M28 " + targetname)
         self.log(_("Press Ctrl-C to interrupt upload."))
-        self.p.startprint(self.f)
+        self.p.startprint(self.fgcode)
         try:
             sys.stdout.write(_("Progress: ") + "00.0%")
             sys.stdout.flush()
@@ -651,7 +651,7 @@ class pronsole(cmd.Cmd):
             self.p.send_now("M29 "+targetname)
             time.sleep(0.2)
             self.p.clear = 1
-            self.p.startprint([])
+            self.p.startprint(None)
             self.log(_("A partial file named %s may have been written to the sd card.") % targetname)
 
     def complete_upload(self, text, line, begidx, endidx):
@@ -668,13 +668,13 @@ class pronsole(cmd.Cmd):
         self.log("Uploads a gcode file to the sd card")
 
     def help_print(self):
-        if not self.f:
+        if not self.fgcode:
             self.log(_("Send a loaded gcode file to the printer. Load a file with the load command first."))
         else:
             self.log(_("Send a loaded gcode file to the printer. You have %s loaded right now.") % self.filename)
 
     def do_print(self, l):
-        if not self.f:
+        if not self.fgcode:
             self.log(_("No file loaded. Please use load first."))
             return
         if not self.p.online:
@@ -682,7 +682,7 @@ class pronsole(cmd.Cmd):
             return
         self.log(_("Printing %s") % self.filename)
         self.log(_("You can monitor the print with the monitor command."))
-        self.p.startprint(self.f)
+        self.p.startprint(self.fgcode)
 
     def do_pause(self, l):
         if self.sdprinting:

pronterface.py

@@ -587,7 +587,7 @@ class PronterWindow(MainWindow, pronsole.pronsole):
         obj = e.GetEventObject()
         popupmenu = wx.Menu()
         item = popupmenu.Append(-1, _("SD Upload"))
-        if not self.f or not len(self.f):
+        if not self.f:
             item.Enable(False)
         self.Bind(wx.EVT_MENU, self.upload, id = item.GetId())
         item = popupmenu.Append(-1, _("SD Print"))
@@ -605,7 +605,7 @@ class PronterWindow(MainWindow, pronsole.pronsole):
         wx.CallAfter(self.btemp.SetInsertionPoint, 0)
 
     def showwin(self, event):
-        if self.f is not None:
+        if self.f:
             self.gwindow.Show(True)
             self.gwindow.SetToolTip(wx.ToolTip("Mousewheel zooms the display\nShift / Mousewheel scrolls layers"))
             self.gwindow.Raise()
@@ -1236,13 +1236,12 @@ class PronterWindow(MainWindow, pronsole.pronsole):
         fn = self.filename
         try:
             self.filename = self.filename.replace(".stl", "_export.gcode").replace(".STL", "_export.gcode").replace(".obj", "_export.gcode").replace(".OBJ", "_export.gcode")
-            of = open(self.filename)
-            self.f = [i.replace("\n", "").replace("\r", "") for i in of]
-            of.close()
+            self.f = [line.strip() for line in open(self.filename)]
+            self.fgcode = gcoder.GCode(self.f)
             if self.p.online:
                 wx.CallAfter(self.printbtn.Enable)
 
-            wx.CallAfter(self.status.SetStatusText, _("Loaded ")+self.filename+_(", %d lines") % (len(self.f),))
+            wx.CallAfter(self.status.SetStatusText, _("Loaded %s, %d lines") % (self.filename, len(self.f),))
             wx.CallAfter(self.pausebtn.Disable)
             wx.CallAfter(self.printbtn.SetLabel, _("Print"))
 
@@ -1299,9 +1298,8 @@ class PronterWindow(MainWindow, pronsole.pronsole):
                 self.skein(name)
             else:
                 self.filename = name
-                of = open(self.filename)
-                self.f = [i.replace("\n", "").replace("\r", "") for i in of]
-                of.close()
+                self.f = [line.strip() for line in open(self.filename)]
+                self.fgcode = gcoder.GCode(self.f)
                 self.status.SetStatusText(_("Loaded %s, %d lines") % (name, len(self.f)))
                 wx.CallAfter(self.printbtn.SetLabel, _("Print"))
                 wx.CallAfter(self.pausebtn.SetLabel, _("Pause"))
@@ -1337,14 +1335,14 @@ class PronterWindow(MainWindow, pronsole.pronsole):
                 self.p.send_now("M24")
                 return
 
-        if self.f is None or not len(self.f):
+        if not self.f:
             wx.CallAfter(self.status.SetStatusText, _("No file loaded. Please use load first."))
             return
         if not self.p.online:
             wx.CallAfter(self.status.SetStatusText, _("Not connected to printer."))
             return
         self.on_startprint()
-        self.p.startprint(self.f)
+        self.p.startprint(self.fgcode)
 
     def on_startprint(self):
         wx.CallAfter(self.pausebtn.SetLabel, _("Pause"))
@@ -1361,14 +1359,14 @@ class PronterWindow(MainWindow, pronsole.pronsole):
     def uploadtrigger(self, l):
         if "Writing to file" in l:
             self.uploading = True
-            self.p.startprint(self.f)
+            self.p.startprint(self.fgcode)
             self.p.endcb = self.endupload
             self.recvlisteners.remove(self.uploadtrigger)
         elif "open failed, File" in l:
             self.recvlisteners.remove(self.uploadtrigger)
 
     def upload(self, event):
-        if not self.f or not len(self.f):
+        if not self.f:
             return
         if not self.p.online:
             return