Merge pull request #225 from garyhodgson/experimental

initial hack to accept Slic3r SVG

projectlayer.py

@@ -15,29 +15,49 @@
 
 import xml.etree.ElementTree
 import wx
-import time
+import svg.document as wxpsvgdocument
 
 def parsesvg(name):
     et= xml.etree.ElementTree.ElementTree(file=name)
+    #xml.etree.ElementTree.dump(et)
+    slicer = 'Slic3r' if et.getroot().find('{http://www.w3.org/2000/svg}metadata') == None else 'Skeinforge'
     zlast=0
     zdiff=0
     ol=[]
+    if (slicer == 'Slic3r'):
+        height = et.getroot().get('height')
+        width = et.getroot().get('width')
+        
+        for i in et.findall("{http://www.w3.org/2000/svg}g"):
+            z=float(i.get('{http://slic3r.org/namespaces/slic3r}z'))
+            zdiff=z-zlast
+            zlast=z
+
+            svgSnippet = xml.etree.ElementTree.Element('{http://www.w3.org/2000/svg}svg')
+            svgSnippet.set('height', height+'mm')
+            svgSnippet.set('width', width+'mm')
+            svgSnippet.set('viewBox', '0 0 '+height+' '+width)
+            svgSnippet.append(i)
+
+            ol+=[svgSnippet]
+    else :
         for i in et.findall("{http://www.w3.org/2000/svg}g")[0].findall("{http://www.w3.org/2000/svg}g"):
             z=float(i.get('id').split("z:")[-1])
             zdiff=z-zlast
             zlast=z
             path=i.find('{http://www.w3.org/2000/svg}path')
             ol+=[(path.get("d").split("z"))[:-1]]
-    return ol,zdiff
+    return ol,zdiff,slicer
     
 
 class dispframe(wx.Frame):
-    def __init__(self, parent, title, res=(1600,1200),printer=None):
+    def __init__(self, parent, title, res=(800,600),printer=None):
         wx.Frame.__init__(self, parent=parent, title=title)
         self.p=printer
         self.pic=wx.StaticBitmap(self)
         self.bitmap=wx.EmptyBitmap(*res)
         self.bbitmap=wx.EmptyBitmap(*res)
+        self.slicer='Skeinforge'
         dc=wx.MemoryDC()
         dc.SelectObject(self.bbitmap)
         dc.SetBackground(wx.Brush("black"))
@@ -50,6 +70,7 @@ class dispframe(wx.Frame):
         self.brush=wx.Brush("white")
         self.SetDoubleBuffered(True)
         self.Show()
+
     def drawlayer(self,svg):
         try:
             dc=wx.MemoryDC()
@@ -58,18 +79,22 @@ class dispframe(wx.Frame):
             dc.Clear()
             dc.SetPen(self.pen)
             dc.SetBrush(self.brush)
+
+            if self.slicer == 'Skeinforge':
                 for i in svg:
                     #print i
                     points=[wx.Point(*map(lambda x:int(round(float(x)*self.scale)),j.strip().split())) for j in i.strip().split("M")[1].split("L")]
                     dc.DrawPolygon(points,self.size[0]/2,self.size[1]/2)
+            else:
+                gc = wx.GraphicsContext_Create(dc)            
+                gc.Translate(*self.offset)
+                gc.Scale(self.scale, self.scale)
+                wxpsvgdocument.SVGDocument(svg).render(gc)
             
-                
-            dc.SelectObject(wx.NullBitmap)
             self.pic.SetBitmap(self.bitmap)
             self.pic.Show()
             self.Refresh()
             
-            #self.pic.SetBitmap(self.bitmap)
             
         except:
             raise
@@ -79,19 +104,18 @@ class dispframe(wx.Frame):
         self.drawlayer(image)
         self.pic.Show()
         self.Refresh()
-        #    time.sleep(self.interval)
-        #self.pic.Hide()
+
         self.Refresh()
-        if self.p!=None and self.p.online:
+        if self.p != None and self.p.online:
                 self.p.send_now("G91")
                 self.p.send_now("G1 Z%f F300"%(self.thickness,))
                 self.p.send_now("G90")
             
     def nextimg(self,event):
-        #print "b"
+
         if self.index<len(self.layers):
             i=self.index
-            #print self.layers[i]
+
             print i
             wx.CallAfter(self.showimgdelay,self.layers[i])
             wx.FutureCall(1000*self.interval,self.pic.Hide)
@@ -104,7 +128,7 @@ class dispframe(wx.Frame):
             wx.CallAfter(self.timer.Stop)
             
         
-    def present(self,layers,interval=0.5,pause=0.2,thickness=0.4,scale=20,size=(800,600)):
+    def present(self,layers,interval=0.5,pause=0.2,thickness=0.4,scale=20,size=(800,600),offset=(0,0)):
         wx.CallAfter(self.pic.Hide)
         wx.CallAfter(self.Refresh)
         self.layers=layers
@@ -113,12 +137,11 @@ class dispframe(wx.Frame):
         self.index=0
         self.size=size
         self.interval=interval
+        self.offset=offset
         self.timer=wx.Timer(self,1)
         self.timer.Bind(wx.EVT_TIMER,self.nextimg)
         self.Bind(wx.EVT_TIMER,self.nextimg)
         self.timer.Start(1000*interval+1000*pause)
-        #print "x"
-
 
 class setframe(wx.Frame):
     
@@ -129,29 +152,43 @@ class setframe(wx.Frame):
         self.panel.SetBackgroundColour("orange")
         self.bload=wx.Button(self.panel,-1,"Load",pos=(0,0))
         self.bload.Bind(wx.EVT_BUTTON,self.loadfile)
+
         wx.StaticText(self.panel,-1,"Layer:",pos=(0,30))
         wx.StaticText(self.panel,-1,"mm",pos=(130,30))
         self.thickness=wx.TextCtrl(self.panel,-1,"0.5",pos=(50,30))
+
         wx.StaticText(self.panel,-1,"Exposure:",pos=(0,60))
         wx.StaticText(self.panel,-1,"s",pos=(130,60))
         self.interval=wx.TextCtrl(self.panel,-1,"0.5",pos=(50,60))
+
         wx.StaticText(self.panel,-1,"Blank:",pos=(0,90))
         wx.StaticText(self.panel,-1,"s",pos=(130,90))
         self.delay=wx.TextCtrl(self.panel,-1,"0.5",pos=(50,90))
+
         wx.StaticText(self.panel,-1,"Scale:",pos=(0,120))
         wx.StaticText(self.panel,-1,"x",pos=(130,120))
         self.scale=wx.TextCtrl(self.panel,-1,"5",pos=(50,120))
+
         wx.StaticText(self.panel,-1,"X:",pos=(160,30))
-        self.X=wx.TextCtrl(self.panel,-1,"1024",pos=(180,30))
+        self.X=wx.TextCtrl(self.panel,-1,"1024",pos=(210,30))
+
         wx.StaticText(self.panel,-1,"Y:",pos=(160,60))
-        self.Y=wx.TextCtrl(self.panel,-1,"768",pos=(180,60))
+        self.Y=wx.TextCtrl(self.panel,-1,"768",pos=(210,60))
+        
+        wx.StaticText(self.panel,-1,"OffsetX:",pos=(160,90))
+        self.offsetX=wx.TextCtrl(self.panel,-1,"50",pos=(210,90))
+
+        wx.StaticText(self.panel,-1,"OffsetY:",pos=(160,120))
+        self.offsetY=wx.TextCtrl(self.panel,-1,"50",pos=(210,120))
+        
         self.bload=wx.Button(self.panel,-1,"Present",pos=(0,150))
         self.bload.Bind(wx.EVT_BUTTON,self.startdisplay)
         self.Show()
 
+        
     def loadfile(self,event):
         dlg=wx.FileDialog(self,("Open file to print"),style=wx.FD_OPEN|wx.FD_FILE_MUST_EXIST)
-        dlg.SetWildcard(("Skeinforge svg files (;*.svg;*.SVG;)"))
+        dlg.SetWildcard(("Slic3r or Skeinforge svg files (;*.svg;*.SVG;)"))
         if(dlg.ShowModal() == wx.ID_OK):
             name=dlg.GetPath()
             import os
@@ -162,6 +199,7 @@ class setframe(wx.Frame):
             print "Layer thickness detected:",layers[1], "mm"
             print len(layers[0]), "layers found, total height", layers[1]*len(layers[0]), "mm"
             self.thickness.SetValue(str(layers[1]))
+            self.f.slicer = layers[2]
             self.layers=layers
         dlg.Destroy()
 
@@ -169,11 +207,15 @@ class setframe(wx.Frame):
         self.f.Raise()
         self.f.ShowFullScreen(1)
         l=self.layers[0][:]
-        #l=list(reversed(l))
-        self.f.present(l,thickness=float(self.thickness.GetValue()),interval=float(self.interval.GetValue()),scale=float(self.scale.GetValue()),pause=float(self.delay.GetValue()), size=(float(self.X.GetValue()),float(self.Y.GetValue())))
+        self.f.present(l,
+            thickness=float(self.thickness.GetValue()),
+            interval=float(self.interval.GetValue()),
+            scale=float(self.scale.GetValue()),
+            pause=float(self.delay.GetValue()), 
+            size=(float(self.X.GetValue()),float(self.Y.GetValue())),
+            offset=(float(self.offsetX.GetValue()),float(self.offsetY.GetValue())))
 
 if __name__=="__main__":
     a=wx.App()
     setframe(None).Show()
     a.MainLoop()
-    

svg/__init__.py

+"""
+
+"""
+
+import wx
+
+def AddEllipticalArc(self, x, y, w, h, startAngle, endAngle, clockwise=False):
+    """ Draws an arc of an ellipse within bounding rect (x,y,w,h) 
+    from startArc to endArc (in radians, relative to the horizontal line of the eclipse)"""
+    
+    if True:
+        import warnings
+        warnings.warn("elliptical arcs are not supported")
+        w = w/2.0
+        h = h/2.0
+        self.AddArc(x+w, y+h, ((w+h)/2), startAngle, endAngle, clockwise)
+        return
+    else:    
+        #implement in terms of AddArc by applying a transformation matrix
+        #Sigh this can't work, still need to patch wx to allow
+        #either a) AddPath that's not a closed path or
+        #b) allow pushing and popping of states on a path, not just on a context
+        #a) is possible in GDI+, need to investigate other renderers.
+        #b) is possible in Quartz and Cairo, but not in GDI+. It could
+        #possibly be simulated by combining the current transform with option a.
+        mtx = wx.GraphicsRenderer_GetDefaultRenderer().CreateMatrix()
+        path = wx.GraphicsRenderer_GetDefaultRenderer().CreatePath()
+            
+
+        mtx.Translate(x+(w/2.0), y+(h/2.0))
+        mtx.Scale(w/2.0, y/2.0)
+        
+        path.AddArc(0, 0, 1, startAngle, endAngle, clockwise)
+        path.Transform(mtx)
+        self.AddPath(path)
+        self.MoveToPoint(path.GetCurrentPoint())
+        self.CloseSubpath()
+    
+if not hasattr(wx.GraphicsPath, "AddEllipticalArc"):
+    wx.GraphicsPath.AddEllipticalArc = AddEllipticalArc
+
+del AddEllipticalArc
+    
\ No newline at end of file

svg/attributes.py

+"""
+    Parsers for specific attributes
+"""
+import urlparse
+from pyparsing import (Literal, 
+    Optional, oneOf, Group, StringEnd, Combine, Word, alphas, hexnums,
+    CaselessLiteral, SkipTo
+)
+from css.colour import colourValue
+import string
+
+##Paint values
+none = CaselessLiteral("none").setParseAction(lambda t: ["NONE", ()])
+currentColor = CaselessLiteral("currentColor").setParseAction(lambda t: ["CURRENTCOLOR", ()])
+
+def parsePossibleURL(t):
+    possibleURL, fallback = t[0]
+    return [urlparse.urlsplit(possibleURL), fallback]
+
+#Normal color declaration
+colorDeclaration = none | currentColor | colourValue
+
+urlEnd = (
+    Literal(")").suppress() + 
+    Optional(Group(colorDeclaration), default=()) + 
+    StringEnd()
+)
+
+url = (
+    CaselessLiteral("URL")
+    + 
+    Literal("(").suppress()+
+    Group(SkipTo(urlEnd, include=True).setParseAction(parsePossibleURL))
+)
+
+#paint value will parse into a (type, details) tuple.
+#For none and currentColor, the details tuple will be the empty tuple
+#for CSS color declarations, it will be (type, (R,G,B))
+#for URLs, it will be ("URL", ((url tuple), fallback))
+#The url tuple will be as returned by urlparse.urlsplit, and can be 
+#an empty tuple if the parser has an error
+#The fallback will be another (type, details) tuple as a parsed
+#colorDeclaration, but may be the empty tuple if it is not present
+paintValue = url | colorDeclaration

svg/css/__init__.py

+from __future__ import absolute_import
+from .transform import transformList
+from .inline import inlineStyle

svg/css/atrule.py

+""" CSS at-rules"""
+
+from pyparsing import Literal, Combine
+from .identifier import identifier
+
+atkeyword = Combine(Literal("@") + identifier)
\ No newline at end of file

svg/css/block.py

+"""
+    CSS blocks
+"""
+
+from pyparsing import nestedExpr
+
+block = nestedExpr(opener="{", closer="}")
+

svg/css/colour.py

+"""
+    Parsing for CSS colour values.
+    Supported formats:
+        hex literal short: #fff
+        hex literal long: #fafafa
+        rgb bytes: rgb(255,100,0)
+        rgb percent: rgb(100%,100%,0%)
+        named color: black
+"""
+import wx
+import string
+import urlparse
+from pyparsing import nums, Literal, Optional, oneOf, Group, StringEnd, Combine, Word, alphas, hexnums
+from ..pathdata import number, sign
+
+number = number.copy()
+integerConstant = Word(nums+"+-").setParseAction(lambda t:int(t[0]))
+
+#rgb format parser
+comma = Literal(",").suppress()
+def clampColourByte(val):
+    val = int(val)
+    return min(max(0,val), 255)
+    
+def clampColourPerc(val):
+    val = float(val)
+    return min(max(0,val), 100)
+    
+def parseColorPerc(token):
+    val = token[0]
+    val = clampColourPerc(val)
+    #normalize to bytes
+    return int(255 * (val / 100.0))
+    
+
+colorByte = Optional(sign) + integerConstant.setParseAction(lambda t: clampColourByte(t[0]))
+colorPerc = number.setParseAction(parseColorPerc) + Literal("%").suppress()
+
+rgb = (
+    Literal("rgb(").setParseAction(lambda t: "RGB") + 
+    
+    (
+    #integer constants, ie 255,255,255
+    Group(colorByte + comma + colorByte + comma + colorByte) ^
+    #percentage values, ie 100%, 50%
+    Group(colorPerc + comma + colorPerc + comma + colorPerc)
+    )
+    + 
+    Literal(")").suppress() + StringEnd()
+)
+
+def parseShortHex(t):
+    return tuple(int(x*2, 16) for x in t[0])
+
+
+doubleHex = Word(hexnums, exact=2).setParseAction(lambda t: int(t[0], 16))
+hexLiteral = (Literal("#").setParseAction(lambda t: "RGB") + 
+    (
+    Group(doubleHex + doubleHex + doubleHex) |
+    Word(hexnums, exact=3).setParseAction(parseShortHex) 
+    ) + StringEnd()
+)
+
+def parseNamedColour(t):
+    try:
+        return ["RGB", NamedColours[t[0].lower()]]
+    except KeyError:
+        return ["RGB", (0,0,0)]
+    
+namedColour = Word(alphas).setParseAction(parseNamedColour)
+
+
+colourValue = rgb | hexLiteral | namedColour
+
+
+##constants
+NamedColours = {
+    #~ #html named colours
+    #~ "black":(0,0,0),
+    #~ "silver": (0xc0, 0xc0, 0xc0, 255),
+    #~ "gray": (0x80, 0x80, 0x80),
+    #~ "white":(255,255,255),
+    #~ "maroon":(0x80, 0, 0),
+    #~ "red":(0xff, 0, 0),
+    #~ "purple":(0x80, 0, 0x80),
+    #~ "fuchsia":(0xff, 0, 0xff),
+    #~ "green": (0, 0x80, 0),
+    #~ "lime": (0, 0xff, 0),
+    #~ "olive": (0x80, 0x80, 00),
+    #~ "yellow":(0xff, 0xff, 00),
+    #~ "navy": (0, 0, 0x80),
+    #~ "blue": (0, 0, 0xff),
+    #~ "teal": (0, 0x80, 0x80),
+    #~ "aqua": (0, 0xff, 0xff),
+    #expanded named colors from SVG spc
+    'aliceblue' : (240, 248, 255) ,
+    'antiquewhite' : (250, 235, 215) ,
+    'aqua' : ( 0, 255, 255) ,
+    'aquamarine' : (127, 255, 212) ,
+    'azure' : (240, 255, 255) ,
+    'beige' : (245, 245, 220) ,
+    'bisque' : (255, 228, 196) ,
+    'black' : ( 0, 0, 0) ,
+    'blanchedalmond' : (255, 235, 205) ,
+    'blue' : ( 0, 0, 255) ,
+    'blueviolet' : (138, 43, 226) ,
+    'brown' : (165, 42, 42) ,
+    'burlywood' : (222, 184, 135) ,
+    'cadetblue' : ( 95, 158, 160) ,
+    'chartreuse' : (127, 255, 0) ,
+    'chocolate' : (210, 105, 30) ,
+    'coral' : (255, 127, 80) ,
+    'cornflowerblue' : (100, 149, 237) ,
+    'cornsilk' : (255, 248, 220) ,
+    'crimson' : (220, 20, 60) ,
+    'cyan' : ( 0, 255, 255) ,
+    'darkblue' : ( 0, 0, 139) ,
+    'darkcyan' : ( 0, 139, 139) ,
+    'darkgoldenrod' : (184, 134, 11) ,
+    'darkgray' : (169, 169, 169) ,
+    'darkgreen' : ( 0, 100, 0) ,
+    'darkgrey' : (169, 169, 169) ,
+    'darkkhaki' : (189, 183, 107) ,
+    'darkmagenta' : (139, 0, 139) ,
+    'darkolivegreen' : ( 85, 107, 47) ,
+    'darkorange' : (255, 140, 0) ,
+    'darkorchid' : (153, 50, 204) ,
+    'darkred' : (139, 0, 0) ,
+    'darksalmon' : (233, 150, 122) ,
+    'darkseagreen' : (143, 188, 143) ,
+    'darkslateblue' : ( 72, 61, 139) ,
+    'darkslategray' : ( 47, 79, 79) ,
+    'darkslategrey' : ( 47, 79, 79) ,
+    'darkturquoise' : ( 0, 206, 209) ,
+    'darkviolet' : (148, 0, 211) ,
+    'deeppink' : (255, 20, 147) ,
+    'deepskyblue' : ( 0, 191, 255) ,
+    'dimgray' : (105, 105, 105) ,
+    'dimgrey' : (105, 105, 105) ,
+    'dodgerblue' : ( 30, 144, 255) ,
+    'firebrick' : (178, 34, 34) ,
+    'floralwhite' : (255, 250, 240) ,
+    'forestgreen' : ( 34, 139, 34) ,
+    'fuchsia' : (255, 0, 255) ,
+    'gainsboro' : (220, 220, 220) ,
+    'ghostwhite' : (248, 248, 255) ,
+    'gold' : (255, 215, 0) ,
+    'goldenrod' : (218, 165, 32) ,
+    'gray' : (128, 128, 128) ,
+    'grey' : (128, 128, 128) ,
+    'green' : ( 0, 128, 0) ,
+    'greenyellow' : (173, 255, 47) ,
+    'honeydew' : (240, 255, 240) ,
+    'hotpink' : (255, 105, 180) ,
+    'indianred' : (205, 92, 92) ,
+    'indigo' : ( 75, 0, 130) ,
+    'ivory' : (255, 255, 240) ,
+    'khaki' : (240, 230, 140) ,
+    'lavender' : (230, 230, 250) ,
+    'lavenderblush' : (255, 240, 245) ,
+    'lawngreen' : (124, 252, 0) ,
+    'lemonchiffon' : (255, 250, 205) ,
+    'lightblue' : (173, 216, 230) ,
+    'lightcoral' : (240, 128, 128) ,
+    'lightcyan' : (224, 255, 255) ,
+    'lightgoldenrodyellow' : (250, 250, 210) ,
+    'lightgray' : (211, 211, 211) ,
+    'lightgreen' : (144, 238, 144) ,
+    'lightgrey' : (211, 211, 211) ,
+    'lightpink' : (255, 182, 193) ,
+    'lightsalmon' : (255, 160, 122) ,
+    'lightseagreen' : ( 32, 178, 170) ,
+    'lightskyblue' : (135, 206, 250) ,
+    'lightslategray' : (119, 136, 153) ,
+    'lightslategrey' : (119, 136, 153) ,
+    'lightsteelblue' : (176, 196, 222) ,
+    'lightyellow' : (255, 255, 224) ,
+    'lime' : ( 0, 255, 0) ,
+    'limegreen' : ( 50, 205, 50) ,
+    'linen' : (250, 240, 230) ,
+    'magenta' : (255, 0, 255) ,
+    'maroon' : (128, 0, 0) ,
+    'mediumaquamarine' : (102, 205, 170) ,
+    'mediumblue' : ( 0, 0, 205) ,
+    'mediumorchid' : (186, 85, 211) ,
+    'mediumpurple' : (147, 112, 219) ,
+    'mediumseagreen' : ( 60, 179, 113) ,
+    'mediumslateblue' : (123, 104, 238) ,
+    'mediumspringgreen' : ( 0, 250, 154) ,
+    'mediumturquoise' : ( 72, 209, 204) ,
+    'mediumvioletred' : (199, 21, 133) ,
+    'midnightblue' : ( 25, 25, 112) ,
+    'mintcream' : (245, 255, 250) ,
+    'mistyrose' : (255, 228, 225) ,
+    'moccasin' : (255, 228, 181) ,
+    'navajowhite' : (255, 222, 173) ,
+    'navy' : ( 0, 0, 128) ,
+    'oldlace' : (253, 245, 230) ,
+    'olive' : (128, 128, 0) ,
+    'olivedrab' : (107, 142, 35) ,
+    'orange' : (255, 165, 0) ,
+    'orangered' : (255, 69, 0) ,
+    'orchid' : (218, 112, 214) ,
+    'palegoldenrod' : (238, 232, 170) ,
+    'palegreen' : (152, 251, 152) ,
+    'paleturquoise' : (175, 238, 238) ,
+    'palevioletred' : (219, 112, 147) ,
+    'papayawhip' : (255, 239, 213) ,
+    'peachpuff' : (255, 218, 185) ,
+    'peru' : (205, 133, 63) ,
+    'pink' : (255, 192, 203) ,
+    'plum' : (221, 160, 221) ,
+    'powderblue' : (176, 224, 230) ,
+    'purple' : (128, 0, 128) ,
+    'red' : (255, 0, 0) ,
+    'rosybrown' : (188, 143, 143) ,
+    'royalblue' : ( 65, 105, 225) ,
+    'saddlebrown' : (139, 69, 19) ,
+    'salmon' : (250, 128, 114) ,
+    'sandybrown' : (244, 164, 96) ,
+    'seagreen' : ( 46, 139, 87) ,
+    'seashell' : (255, 245, 238) ,
+    'sienna' : (160, 82, 45) ,
+    'silver' : (192, 192, 192) ,
+    'skyblue' : (135, 206, 235) ,
+    'slateblue' : (106, 90, 205) ,
+    'slategray' : (112, 128, 144) ,
+    'slategrey' : (112, 128, 144) ,
+    'snow' : (255, 250, 250) ,
+    'springgreen' : ( 0, 255, 127) ,
+    'steelblue' : ( 70, 130, 180) ,
+    'tan' : (210, 180, 140) ,
+    'teal' : ( 0, 128, 128) ,
+    'thistle' : (216, 191, 216) ,
+    'tomato' : (255, 99, 71) ,
+    'turquoise' : ( 64, 224, 208) ,
+    'violet' : (238, 130, 238) ,
+    'wheat' : (245, 222, 179) ,
+    'white' : (255, 255, 255) ,
+    'whitesmoke' : (245, 245, 245) ,
+    'yellow' : (255, 255, 0) ,
+    'yellowgreen' : (154, 205, 50) ,
+}
+
+
+
+def fillCSS2SystemColours():
+    #The system colours require a wxApp to be present to retrieve,
+    #so if you wnat support for them you'll need 
+    #to call this function after your wxApp instance starts
+    systemColors = {
+        "ActiveBorder": wx.SYS_COLOUR_ACTIVEBORDER,
+        "ActiveCaption": wx.SYS_COLOUR_ACTIVECAPTION,
+        "AppWorkspace": wx.SYS_COLOUR_APPWORKSPACE,
+        "Background": wx.SYS_COLOUR_BACKGROUND,
+        "ButtonFace": wx.SYS_COLOUR_BTNFACE,
+        "ButtonHighlight": wx.SYS_COLOUR_BTNHIGHLIGHT,
+        "ButtonShadow": wx.SYS_COLOUR_BTNSHADOW,
+        "ButtonText": wx.SYS_COLOUR_BTNTEXT,
+        "CaptionText": wx.SYS_COLOUR_CAPTIONTEXT,
+        "GrayText": wx.SYS_COLOUR_GRAYTEXT,
+        "Highlight": wx.SYS_COLOUR_HIGHLIGHT,
+        "HighlightText": wx.SYS_COLOUR_HIGHLIGHTTEXT,
+        "InactiveBorder": wx.SYS_COLOUR_INACTIVEBORDER,
+        "InactiveCaption": wx.SYS_COLOUR_INACTIVECAPTION,
+        "InfoBackground": wx.SYS_COLOUR_INFOBK,
+        "InfoText": wx.SYS_COLOUR_INFOTEXT,
+        "Menu": wx.SYS_COLOUR_MENU,
+        "MenuText": wx.SYS_COLOUR_MENUTEXT,
+        "Scrollbar": wx.SYS_COLOUR_SCROLLBAR,
+        "ThreeDDarkShadow": wx.SYS_COLOUR_3DDKSHADOW,
+        "ThreeDFace": wx.SYS_COLOUR_3DFACE,
+        "ThreeDHighlight": wx.SYS_COLOUR_3DHIGHLIGHT,
+        "ThreeDLightShadow": wx.SYS_COLOUR_3DLIGHT,
+        "ThreeDShadow": wx.SYS_COLOUR_3DSHADOW,
+        "Window": wx.SYS_COLOUR_WINDOW,
+        "WindowFrame": wx.SYS_COLOUR_WINDOWFRAME,
+        "WindowText": wx.SYS_COLOUR_WINDOWTEXT
+    }
+    NamedColours.update(
+        #strip the alpha from the system colors. Is this really what we want to do?
+        (k.lower(), wx.SystemSettings.GetColour(v)[:3]) for (k,v) in systemColors.iteritems()
+    )
\ No newline at end of file

svg/css/identifier.py

+""" Parse CSS identifiers. More complicated than it sounds"""
+
+from pyparsing import Word, Literal, Regex, Combine, Optional, White, oneOf, ZeroOrMore
+import string
+import re
+
+class White(White):
+    """ Customize whitespace to match the CSS spec values"""
+    def __init__(self, ws=" \t\r\n\f", min=1, max=0, exact=0):
+        super(White, self).__init__(ws, min, max, exact)
+
+escaped = (
+    Literal("\\").suppress() + 
+    #chr(20)-chr(126) + chr(128)-unichr(sys.maxunicode)
+    Regex(u"[\u0020-\u007e\u0080-\uffff]", re.IGNORECASE)
+)
+
+def convertToUnicode(t):
+    return unichr(int(t[0], 16))
+hex_unicode = (
+    Literal("\\").suppress() + 
+    Regex("[0-9a-f]{1,6}", re.IGNORECASE) +
+    Optional(White(exact=1)).suppress()
+).setParseAction(convertToUnicode)
+
+
+escape = hex_unicode | escaped
+
+#any unicode literal outside the 0-127 ascii range
+nonascii = Regex(u"[^\u0000-\u007f]")
+
+#single character for starting an identifier. 
+nmstart = Regex(u"[A-Z]", re.IGNORECASE) | nonascii | escape
+
+nmchar = Regex(u"[0-9A-Z-]", re.IGNORECASE) | nonascii | escape
+
+identifier = Combine(nmstart + ZeroOrMore(nmchar))
\ No newline at end of file

svg/css/inline.py

+""" Parser for inline CSS in style attributes """
+
+def inlineStyle(styleString):
+    if not styleString:
+        return {}
+    styles = styleString.split(";")
+    rv = dict(style.split(":") for style in styles if len(style) != 0)
+    return rv
\ No newline at end of file

svg/css/transform.py

+"""
+    Parsing for CSS and CSS-style values, such as transform and filter attributes.
+"""
+
+from pyparsing import (Literal, Word, CaselessLiteral,
+    Optional, Combine, Forward, ZeroOrMore, nums, oneOf, Group, delimitedList)
+
+#some shared definitions from pathdata
+
+from ..pathdata import number, maybeComma
+
+paren = Literal("(").suppress()
+cparen = Literal(")").suppress()
+
+def Parenthised(exp):
+    return Group(paren + exp + cparen)
+
+skewY = Literal("skewY") + Parenthised(number)
+
+skewX = Literal("skewX") + Parenthised(number)
+
+rotate = Literal("rotate") + Parenthised(
+    number + Optional(maybeComma + number + maybeComma + number)
+)
+
+
+scale = Literal("scale") + Parenthised(
+    number + Optional(maybeComma + number)
+)
+
+translate = Literal("translate") + Parenthised(
+    number + Optional(maybeComma + number)
+)
+
+matrix = Literal("matrix") + Parenthised(
+    #there's got to be a better way to write this
+    number + maybeComma +
+    number + maybeComma +
+    number + maybeComma +
+    number + maybeComma +
+    number + maybeComma +
+    number
+)
+
+transform = (skewY | skewX | rotate | scale | translate | matrix)
+
+transformList = delimitedList(Group(transform), delim=maybeComma)
+
+if __name__ == '__main__':
+    from tests.test_css import *
+    unittest.main()
\ No newline at end of file

svg/css/values.py

+"""
+Parser for various kinds of CSS values as per CSS2 spec section 4.3
+"""
+from pyparsing import Word, Combine, Optional, Literal, oneOf, CaselessLiteral, StringEnd
+
+def asInt(s,l,t):
+    return int(t[0])
+
+def asFloat(s,l,t):
+    return float(t[0])
+
+def asFloatOrInt(s,l,t):
+    """ Return an int if possible, otherwise a float"""
+    v = t[0]
+    try:
+        return int(v)
+    except ValueError:
+        return float(v)
+
+integer = Word("0123456789").setParseAction(asInt)
+
+number = Combine(
+    Optional(Word("0123456789")) + Literal(".") + Word("01234567890")
+    | integer
+)
+number.setName('number')
+
+
+sign = oneOf("+ -")
+
+signedNumber = Combine(Optional(sign) + number).setParseAction(asFloat)
+
+lengthValue = Combine(Optional(sign) + number).setParseAction(asFloatOrInt)
+lengthValue.setName('lengthValue')
+
+
+#TODO: The physical units like in, mm
+lengthUnit = oneOf(['em', 'ex', 'px', 'pt', '%'], caseless=True)
+#the spec says that the unit is only optional for a 0 length, but
+#there are just too many places where a default is permitted.
+#TODO: Maybe should use a ctor like optional to let clients declare it?
+length = lengthValue + Optional(lengthUnit, default=None) + StringEnd()
+length.leaveWhitespace()
+
+#set the parse action aftward so it doesn't "infect" the parsers that build on it
+number.setParseAction(asFloat)
\ No newline at end of file

svg/pathdata.py

+"""
+    SVG path data parser
+    
+    
+    Usage:
+    steps = svg.parseString(pathdata)
+    for command, arguments in steps:
+        pass
+    
+"""
+
+from pyparsing import (ParserElement, Literal, Word, CaselessLiteral, 
+    Optional, Combine, Forward, ZeroOrMore, nums, oneOf, Group, ParseException, OneOrMore)
+    
+#ParserElement.enablePackrat()
+
+def Command(char):
+    """ Case insensitive but case preserving"""
+    return CaselessPreservingLiteral(char)
+    
+def Arguments(token):
+    return Group(token)
+    
+    
+class CaselessPreservingLiteral(CaselessLiteral):
+    """ Like CaselessLiteral, but returns the match as found
+        instead of as defined.
+    """
+    def __init__( self, matchString ):
+        super(CaselessPreservingLiteral,self).__init__( matchString.upper() )
+        self.name = "'%s'" % matchString
+        self.errmsg = "Expected " + self.name
+        self.myException.msg = self.errmsg
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        test = instring[ loc:loc+self.matchLen ]
+        if test.upper() == self.match:
+            return loc+self.matchLen, test
+        #~ raise ParseException( instring, loc, self.errmsg )
+        exc = self.myException
+        exc.loc = loc
+        exc.pstr = instring
+        raise exc   
+    
+def Sequence(token):
+    """ A sequence of the token"""
+    return OneOrMore(token+maybeComma)
+
+digit_sequence = Word(nums)
+
+sign = oneOf("+ -")
+
+def convertToFloat(s, loc, toks):
+    try:
+        return float(toks[0])
+    except:
+        raise ParseException(loc, "invalid float format %s"%toks[0])
+
+exponent = CaselessLiteral("e")+Optional(sign)+Word(nums)
+
+#note that almost all these fields are optional, 
+#and this can match almost anything. We rely on Pythons built-in
+#float() function to clear out invalid values - loosely matching like this
+#speeds up parsing quite a lot
+floatingPointConstant = Combine(
+    Optional(sign) + 
+    Optional(Word(nums)) + 
+    Optional(Literal(".") + Optional(Word(nums)))+
+    Optional(exponent)
+)
+
+floatingPointConstant.setParseAction(convertToFloat)
+
+number = floatingPointConstant
+
+#same as FP constant but don't allow a - sign
+nonnegativeNumber = Combine(
+    Optional(Word(nums)) + 
+    Optional(Literal(".") + Optional(Word(nums)))+
+    Optional(exponent)
+)
+nonnegativeNumber.setParseAction(convertToFloat)
+
+coordinate = number
+
+#comma or whitespace can seperate values all over the place in SVG
+maybeComma = Optional(Literal(',')).suppress()
+
+coordinateSequence = Sequence(coordinate)
+
+coordinatePair = (coordinate + maybeComma + coordinate).setParseAction(lambda t: tuple(t))
+coordinatePairSequence = Sequence(coordinatePair)
+
+coordinatePairPair = coordinatePair + maybeComma + coordinatePair
+coordinatePairPairSequence = Sequence(Group(coordinatePairPair))
+
+coordinatePairTriple = coordinatePair + maybeComma + coordinatePair + maybeComma + coordinatePair
+coordinatePairTripleSequence = Sequence(Group(coordinatePairTriple))
+
+#commands
+lineTo = Group(Command("L") + Arguments(coordinatePairSequence))
+
+moveTo = Group(Command("M") + Arguments(coordinatePairSequence))
+
+closePath = Group(Command("Z")).setParseAction(lambda t: ('Z', (None,)))
+
+flag = oneOf("1 0").setParseAction(lambda t: bool(int((t[0]))))
+
+arcRadius = (
+    nonnegativeNumber + maybeComma + #rx
+    nonnegativeNumber #ry
+).setParseAction(lambda t: tuple(t))
+
+arcFlags = (flag + maybeComma + flag).setParseAction(lambda t: tuple(t))
+
+ellipticalArcArgument = Group(
+    arcRadius + maybeComma + #rx, ry
+    number + maybeComma +#rotation
+    arcFlags + #large-arc-flag, sweep-flag
+    coordinatePair #(x,y)
+)
+
+ 
+ellipticalArc = Group(Command("A") + Arguments(Sequence(ellipticalArcArgument)))
+
+smoothQuadraticBezierCurveto = Group(Command("T") + Arguments(coordinatePairSequence))
+
+quadraticBezierCurveto = Group(Command("Q") + Arguments(coordinatePairPairSequence))
+
+smoothCurve = Group(Command("S") + Arguments(coordinatePairPairSequence))
+
+curve = Group(Command("C") + Arguments(coordinatePairTripleSequence))
+
+horizontalLine = Group(Command("H") + Arguments(coordinateSequence))
+verticalLine = Group(Command("V") + Arguments(coordinateSequence))
+
+drawToCommand = (
+    lineTo | moveTo | closePath | ellipticalArc | smoothQuadraticBezierCurveto |
+    quadraticBezierCurveto | smoothCurve | curve | horizontalLine | verticalLine
+    )
+
+#~ number.debug = True
+moveToDrawToCommands = moveTo + ZeroOrMore(drawToCommand)
+
+svg = ZeroOrMore(moveToDrawToCommands)
+svg.keepTabs = True
+
+def profile():
+    import cProfile
+    p = cProfile.Profile()
+    p.enable()
+    ptest()
+    ptest()
+    ptest()
+    p.disable()
+    p.print_stats()
+
+bpath = """M204.33 139.83 C196.33 133.33 206.68 132.82 206.58 132.58 C192.33 97.08 169.35 
+    81.41 167.58 80.58 C162.12 78.02 159.48 78.26 160.45 76.97 C161.41 75.68 167.72 79.72 168.58 
+    80.33 C193.83 98.33 207.58 132.33 207.58 132.33 C207.58 132.33 209.33 133.33 209.58 132.58 
+    C219.58 103.08 239.58 87.58 246.33 81.33 C253.08 75.08 256.63 74.47 247.33 81.58 C218.58 103.58 
+    210.34 132.23 210.83 132.33 C222.33 134.83 211.33 140.33 211.83 139.83 C214.85 136.81 214.83 145.83 214.83 
+    145.83 C214.83 145.83 231.83 110.83 298.33 66.33 C302.43 63.59 445.83 -14.67 395.83 80.83 C393.24 85.79 375.83 
+    105.83 375.83 105.83 C375.83 105.83 377.33 114.33 371.33 121.33 C370.3 122.53 367.83 134.33 361.83 140.83 C360.14 142.67
+    361.81 139.25 361.83 140.83 C362.33 170.83 337.76 170.17 339.33 170.33 C348.83 171.33 350.19 183.66 350.33 183.83 C355.83 
+    190.33 353.83 191.83 355.83 194.83 C366.63 211.02 355.24 210.05 356.83 212.83 C360.83 219.83 355.99 222.72 357.33 224.83 
+    C360.83 230.33 354.75 233.84 354.83 235.33 C355.33 243.83 349.67 240.73 349.83 244.33 C350.33 255.33 346.33 250.83 343.83 254.83 
+    C336.33 266.83 333.46 262.38 332.83 263.83 C329.83 270.83 325.81 269.15 324.33 270.83 C320.83 274.83 317.33 274.83 315.83 276.33
+    C308.83 283.33 304.86 278.39 303.83 278.83 C287.83 285.83 280.33 280.17 277.83 280.33 C270.33 280.83 271.48 279.67 269.33 277.83 
+    C237.83 250.83 219.33 211.83 215.83 206.83 C214.4 204.79 211.35 193.12 212.33 195.83 C214.33 201.33 213.33 250.33 207.83 250.33 
+    C202.33 250.33 201.83 204.33 205.33 195.83 C206.43 193.16 204.4 203.72 201.79 206.83 C196.33 213.33 179.5 250.83 147.59 277.83 
+    C145.42 279.67 146.58 280.83 138.98 280.33 C136.46 280.17 128.85 285.83 112.65 278.83 C111.61 278.39 107.58 283.33 100.49 276.33 
+    C98.97 274.83 95.43 274.83 91.88 270.83 C90.39 269.15 86.31 270.83 83.27 263.83 C82.64 262.38 79.73 266.83 72.13 254.83 C69.6 250.83 
+    65.54 255.33 66.05 244.33 C66.22 240.73 60.48 243.83 60.99 235.33 C61.08 233.84 54.91 230.33 58.45 224.83 C59.81 222.72 54.91 219.83 
+    58.96 212.83 C60.57 210.05 49.04 211.02 59.97 194.83 C62 191.83 59.97 190.33 65.54 183.83 C65.69 183.66 67.06 171.33 76.69 170.33 
+    C78.28 170.17 53.39 170.83 53.9 140.83 C53.92 139.25 55.61 142.67 53.9 140.83 C47.82 134.33 45.32 122.53 44.27 121.33 C38.19 114.33 
+    39.71 105.83 39.71 105.83 C39.71 105.83 22.08 85.79 19.46 80.83 C-31.19 -14.67 114.07 63.59 118.22 66.33 C185.58 110.83 202 145.83 
+    202 145.83 C202 145.83 202.36 143.28 203 141.83 C203.64 140.39 204.56 140.02 204.33 139.83 z"""
+
+def ptest():
+    svg.parseString(bpath)
+    
+
+
+    
+    
+if __name__ == '__main__':
+    
+    #~ from tests.test_pathdata import *
+    #~ unittest.main()
+    profile()
+
+

svg/testfiles/belt_pulley3.slic3r.small.svg

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+  http://slic3r.org/
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