Projectlayer can present a zip file full of bmp files.

The projectlayer file dialog now accepts files with the extension
*.3dlp.zip and will extract the contents to a temporary folder. It then
finds any *.bmp files and adds them as a set of layers.

Notes:
- Offset works, but currently scale does not affect the bmp files.
- *.3dlp.zip was chosen to mark the file as being for dlp based
resin printers, but also processable by regular archive programs.
- Have also introduced a checkbox to let the user decide to display
  fullscreen or not, as they may want the window dragged to a second
  output.

bmpDisplay.py

@@ -0,0 +1,76 @@
+# create a simple image slide show using the
+# wx.PaintDC surface as a canvas and
+# DrawBitmap(bitmap, x, y, bool transparent)
+# Source:  vegaseat
+
+import wx
+import os
+import zipfile
+import tempfile
+import shutil
+
+class MyFrame(wx.Frame):
+    def __init__(self, parent, mysize):
+        wx.Frame.__init__(self, parent, wx.ID_ANY, size=mysize)
+        self.SetBackgroundColour('black')
+        
+        # milliseconds per frame
+        self.delay = 60
+        # number of loops
+        self.loops = 1
+
+        zipfilename = 'images/out.3dlp.zip'
+        if not zipfile.is_zipfile(zipfilename):
+            raise Exception(zipfilename + " is not a zip file!")
+        zip = zipfile.ZipFile(zipfilename, 'r')
+        self.mytmpdir = tempfile.mkdtemp()
+        zip.extractall(self.mytmpdir)
+
+        image_type = ".bmp"
+        image_dir = self.mytmpdir
+        file_list = []
+        self.name_list = []
+        for file in os.listdir(image_dir):
+            path = os.path.join(image_dir, file)
+            if os.path.isfile(path) and path.endswith(image_type):
+                # just the file name
+                self.name_list.append(file)
+                # full path name
+                file_list.append(path)
+        # create a list of image objects
+        self.image_list = []
+        for image_file in file_list:
+            self.image_list.append(wx.Bitmap(image_file))
+        
+        # bind the panel to the paint event
+        wx.EVT_PAINT(self, self.onPaint)
+
+    def __del__(self):
+        if self.mytmpdir:
+            shutil.rmtree(self.mytmpdir)
+
+    def onPaint(self, event=None):
+        # this is the wxPython drawing surface/canvas
+        dc = wx.PaintDC(self)
+        while self.loops:
+            self.loops -= 1
+            for ix, bmp in enumerate(self.image_list):
+                # optionally show some image information
+                w, h = bmp.GetSize()
+                info = "%s  %dx%d" % (self.name_list[ix], w, h)
+                self.SetTitle(info)
+                #self.SetSize((w,h))
+                # draw the image
+                dc.DrawBitmap(bmp, 0, 0, True)
+                wx.MilliSleep(self.delay)
+                # don't clear on fast slide shows to avoid flicker
+                if self.delay > 200:
+                    dc.Clear()
+
+
+app = wx.App()
+width = 800
+frameoffset = 35
+height = 600 + frameoffset
+MyFrame(None, (width, height)).Show()
+app.MainLoop()

projectlayer.py

@@ -15,40 +15,12 @@
 
 import xml.etree.ElementTree
 import wx
+import os
+import zipfile
+import tempfile
+import shutil
 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,slicer
-    
     
 class dispframe(wx.Frame):
     def __init__(self, parent, title, res=(800, 600), printer=None):
@@ -71,7 +43,7 @@ class dispframe(wx.Frame):
         self.SetDoubleBuffered(True)
         self.Show()
 
-    def drawlayer(self,svg):
+    def drawlayer(self, image):
         try:
             dc = wx.MemoryDC()
             dc.SelectObject(self.bitmap)
@@ -81,16 +53,19 @@ class dispframe(wx.Frame):
             dc.SetBrush(self.brush)
 
             if self.slicer == 'Skeinforge':
-                for i in svg:
+                for i in image:
                     #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:
+            elif self.slicer == 'Slic3r':
                 gc = wx.GraphicsContext_Create(dc)            
                 gc.Translate(*self.offset)
                 gc.Scale(self.scale, self.scale)
-                wxpsvgdocument.SVGDocument(svg).render(gc)
-            
+                wxpsvgdocument.SVGDocument(image).render(gc)
+            elif self.slicer == 'bmp':
+                dc.DrawBitmap(image, self.offset[0], -self.offset[1], True)
+            else:
+                raise Exception(self.slicer + " is an unknown method.")
             self.pic.SetBitmap(self.bitmap)
             self.pic.Show()
             self.Refresh()
@@ -112,7 +87,6 @@ class dispframe(wx.Frame):
                 self.p.send_now("G90")
             
     def nextimg(self, event):
-
         if self.index < len(self.layers):
             i = self.index
 
@@ -127,7 +101,6 @@ class dispframe(wx.Frame):
             wx.CallAfter(self.ShowFullScreen, 0)
             wx.CallAfter(self.timer.Stop)            
         
-        
     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)
@@ -135,7 +108,7 @@ class dispframe(wx.Frame):
         self.scale = scale
         self.thickness = thickness
         self.index = 0
-        self.size=size
+        self.size = (size[0]+offset[0],size[1]+offset[1])
         self.interval = interval
         self.offset = offset
         self.timer = wx.Timer(self, 1)
@@ -183,28 +156,86 @@ class setframe(wx.Frame):
         
         self.bload = wx.Button(self.panel, -1, "Present", pos=(0, 150))
         self.bload.Bind(wx.EVT_BUTTON, self.startdisplay)
+        
+        wx.StaticText(self.panel, -1, "Fullscreen:", pos=(160, 150))
+        self.fullscreen = wx.CheckBox(self.panel, -1, pos=(220, 150))
+        self.fullscreen.SetValue(True)
+        
         self.Show()
 
+    def __del__(self):
+        if hasattr(self, 'image_dir') and self.image_dir != '':
+            shutil.rmtree(self.image_dir)
+            
+    def parsesvg(self, 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, slicer
+    
+    def parse3DLPzip(self, name):
+        if not zipfile.is_zipfile(name):
+            raise Exception(name + " is not a zip file!")
+        zipFile = zipfile.ZipFile(name, 'r')
+        self.image_dir = tempfile.mkdtemp()
+        zipFile.extractall(self.image_dir)
+        ol = []
+        for f in os.listdir(self.image_dir):
+            path = os.path.join(self.image_dir, f)
+            if os.path.isfile(path) and path.endswith(".bmp"):
+                ol.append(wx.Bitmap(path))
+        return ol, -1, "bmp"
         
     def loadfile(self, event):
         dlg = wx.FileDialog(self, ("Open file to print"), style=wx.FD_OPEN | wx.FD_FILE_MUST_EXIST)
-        dlg.SetWildcard(("Slic3r or Skeinforge svg files (;*.svg;*.SVG;)"))
+        dlg.SetWildcard(("Slic3r or Skeinforge svg files (;*.svg;*.SVG;);3DLP Zip (;*.3dlp.zip;)"))
         if(dlg.ShowModal() == wx.ID_OK):
             name = dlg.GetPath()
-            import os
             if not(os.path.exists(name)):
                 self.status.SetStatusText(("File not found!"))
                 return
-            layers=parsesvg(name)
-            print "Layer thickness detected:",layers[1], "mm"
-            print len(layers[0]), "layers found, total height", layers[1]*len(layers[0]), "mm"
+            if name.endswith(".3dlp.zip"):
+                layers = self.parse3DLPzip(name)
+                layerHeight = float(self.thickness.GetValue())
+            else:
+                layers = self.parsesvg(name)
+                layerHeight = layers[1]
                 self.thickness.SetValue(str(layers[1]))
-            self.f.slicer = layers[2]
+            print "Layer thickness detected:", layerHeight, "mm"
+            print len(layers[0]), "layers found, total height", layerHeight * len(layers[0]), "mm"
             self.layers = layers
+            self.f.slicer = layers[2]
         dlg.Destroy()
 
     def startdisplay(self, event):
         self.f.Raise()
+        if (self.fullscreen.GetValue()):
             self.f.ShowFullScreen(1)
         l = self.layers[0][:]
         self.f.present(l,