plater.py

#!/usr/bin/env python

# This file is part of the Printrun suite.
#
# Printrun is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Printrun is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Printrun.  If not, see <http://www.gnu.org/licenses/>.

# Set up Internationalization using gettext
# searching for installed locales on /usr/share; uses relative folder if not found (windows)
import os, Queue, re

from printrun.printrun_utils import install_locale
install_locale('plater')

import wx
import time
import random
import threading
import math
import sys

from printrun import stltool
from printrun.printrun_utils import pixmapfile

glview = False
if "-nogl" not in sys.argv:
    try:
        from printrun import stlview
        glview = True
    except:
        pass


def evalme(s):
    return eval(s[s.find("(") + 1:s.find(")")])


class stlwrap:
    def __init__(self, obj, name = None):
        self.obj = obj
        self.name = name
        if name is None:
            self.name = obj.name

    def __repr__(self):
        return self.name


class showstl(wx.Window):
    def __init__(self, parent, size, pos):
        wx.Window.__init__(self, parent, size = size, pos = pos)
        #self.SetBackgroundColour((0, 0, 0))
        #wx.FutureCall(200, self.paint)
        self.i = 0
        self.parent = parent
        self.previ = 0
        self.Bind(wx.EVT_MOUSEWHEEL, self.rot)
        self.Bind(wx.EVT_MOUSE_EVENTS, self.move)
        self.Bind(wx.EVT_PAINT, self.repaint)
        self.Bind(wx.EVT_KEY_DOWN, self.keypress)
        #self.s = stltool.stl("sphere.stl").scale([2, 1, 1])
        self.triggered = 0
        self.initpos = None
        self.prevsel = -1

    def drawmodel(self, m, scale):
        m.bitmap = wx.EmptyBitmap(800, 800, 32)
        dc = wx.MemoryDC()
        dc.SelectObject(m.bitmap)
        dc.SetBackground(wx.Brush((0, 0, 0, 0)))
        dc.SetBrush(wx.Brush((0, 0, 0, 255)))
        #dc.DrawRectangle(-1, -1, 10000, 10000)
        dc.SetBrush(wx.Brush(wx.Colour(128, 255, 128)))
        dc.SetPen(wx.Pen(wx.Colour(128, 128, 128)))
        #m.offsets = [10, 10, 0]
        #print m.offsets, m.dims
        for i in m.facets:  # random.sample(m.facets, min(100000, len(m.facets))):
            dc.DrawPolygon([wx.Point(400 + scale * p[0], (400 - scale * p[1])) for p in i[1]])
            #if(time.time()-t)>5:
            #    break
        dc.SelectObject(wx.NullBitmap)
        m.bitmap.SetMask(wx.Mask(m.bitmap, wx.Colour(0, 0, 0, 255)))

    def move_shape(self, delta):
        """moves shape (selected in l, which is list ListBox of shapes)
        by an offset specified in tuple delta.
        Positive numbers move to (rigt, down)"""
        name = self.parent.l.GetSelection()
        if name == wx.NOT_FOUND:
            return False
        name = self.parent.l.GetString(name)
        model = self.parent.models[name]
        model.offsets = [
                model.offsets[0] + delta[0],
                model.offsets[1] + delta[1],
                model.offsets[2]
            ]
        self.Refresh()
        return True

    def move(self, event):
        if event.ButtonUp(wx.MOUSE_BTN_LEFT):
            if(self.initpos is not None):
                currentpos = event.GetPositionTuple()
                delta = (
                        0.5 * (currentpos[0] - self.initpos[0]),
                        - 0.5 * (currentpos[1] - self.initpos[1])
                    )
                self.move_shape(delta)
                self.Refresh()
                self.initpos = None
        elif event.ButtonDown(wx.MOUSE_BTN_RIGHT):
            self.parent.right(event)
        elif event.Dragging():
            if self.initpos is None:
                self.initpos = event.GetPositionTuple()
            self.Refresh()
            dc = wx.ClientDC(self)
            p = event.GetPositionTuple()
            dc.DrawLine(self.initpos[0], self.initpos[1], p[0], p[1])
            #print math.sqrt((p[0]-self.initpos[0])**2+(p[1]-self.initpos[1])**2)

            del dc
        else:
            event.Skip()

    def rotate_shape(self, angle):
        """rotates acive shape
        positive angle is clockwise
        """
        self.i += angle
        if not self.triggered:
            self.triggered = 1
            threading.Thread(target = self.cr).start()

    def keypress(self, event):
        """gets keypress events and moves/rotates acive shape"""
        keycode = event.GetKeyCode()
        #print keycode
        step = 5
        angle = 18
        if event.ControlDown():
            step = 1
            angle = 1
        #h
        if keycode == 72:
            self.move_shape((-step, 0))
        #l
        if keycode == 76:
            self.move_shape((step, 0))
        #j
        if keycode == 75:
            self.move_shape((0, step))
        #k
        if keycode == 74:
            self.move_shape((0, -step))
        #[
        if keycode == 91:
            self.rotate_shape(-angle)
        #]
        if keycode == 93:
            self.rotate_shape(angle)
        event.Skip()

    def rotateafter(self):
        if(self.i != self.previ):
            i = self.parent.l.GetSelection()
            if i != wx.NOT_FOUND:
                #o = self.models[self.l.GetItemText(i)].offsets
                self.parent.models[self.parent.l.GetString(i)].rot -= 5 * (self.i - self.previ)
                #self.models[self.l.GetItemText(i)].offsets = o
            self.previ = self.i
            self.Refresh()

    def cr(self):
        time.sleep(0.01)
        wx.CallAfter(self.rotateafter)
        self.triggered = 0

    def rot(self, event):
        z = event.GetWheelRotation()
        s = self.parent.l.GetSelection()
        if self.prevsel != s:
            self.i = 0
            self.prevsel = s
        if z < 0:
            self.rotate_shape(-1)
        else:
            self.rotate_shape(1)

    def repaint(self, event):
        dc = wx.PaintDC(self)
        self.paint(dc = dc)

    def paint(self, coord1 = "x", coord2 = "y", dc = None):
        coords = {"x": 0, "y": 1, "z": 2}
        if dc is None:
            dc = wx.ClientDC(self)
        offset = [0, 0]
        scale = 2
        dc.SetPen(wx.Pen(wx.Colour(100, 100, 100)))
        for i in xrange(20):
            dc.DrawLine(0, i * scale * 10, 400, i * scale * 10)
            dc.DrawLine(i * scale * 10, 0, i * scale * 10, 400)
        dc.SetPen(wx.Pen(wx.Colour(0, 0, 0)))
        for i in xrange(4):
            dc.DrawLine(0, i * scale * 50, 400, i * scale * 50)
            dc.DrawLine(i * scale * 50, 0, i * scale * 50, 400)
        dc.SetBrush(wx.Brush(wx.Colour(128, 255, 128)))
        dc.SetPen(wx.Pen(wx.Colour(128, 128, 128)))
        t = time.time()
        dcs = wx.MemoryDC()
        for m in self.parent.models.values():
            b = m.bitmap
                #print b
            im = b.ConvertToImage()
                #print im
            imgc = wx.Point(im.GetWidth() / 2, im.GetHeight() / 2)
                #print math.radians(5*(self.i-self.previ))
            im = im.Rotate(math.radians(m.rot), imgc, 0)
            bm = wx.BitmapFromImage(im)
            dcs.SelectObject(bm)
            bsz = bm.GetSize()
            dc.Blit(scale * m.offsets[0] - bsz[0] / 2, 400 - (scale * m.offsets[1] + bsz[1] / 2), bsz[0], bsz[1], dcs, 0, 0, useMask = 1)
            #for i in m.facets:#random.sample(m.facets, min(100000, len(m.facets))):
            #    dc.DrawPolygon([wx.Point(offset[0]+scale*m.offsets[0]+scale*p[0], 400-(offset[1]+scale*m.offsets[1]+scale*p[1])) for p in i[1]])
                #if(time.time()-t)>5:
                #    break
        del dc
        #print time.time()-t
        #s.export()


class stlwin(wx.Frame):
    def __init__(self, size = (800, 580), callback = None, parent = None):
        wx.Frame.__init__(self, parent, title = _("Plate building tool"), size = size)
        self.SetIcon(wx.Icon(pixmapfile("plater.ico"), wx.BITMAP_TYPE_ICO))
        self.mainsizer = wx.BoxSizer(wx.HORIZONTAL)
        self.panel = wx.Panel(self, -1, size = (150, 600), pos = (0, 0))
        #self.panel.SetBackgroundColour((10, 10, 10))
        self.l = wx.ListBox(self.panel, size = (300, 180), pos = (0, 30))
        self.cl = wx.Button(self.panel, label = _("Clear"), pos = (0, 205))
        self.lb = wx.Button(self.panel, label = _("Load"), pos = (0, 0))
        if(callback is None):
            self.eb = wx.Button(self.panel, label = _("Export"), pos = (100, 0))
            self.eb.Bind(wx.EVT_BUTTON, self.export)
        else:
            self.eb = wx.Button(self.panel, label = _("Export"), pos = (200, 205))
            self.eb.Bind(wx.EVT_BUTTON, self.export)
            self.edb = wx.Button(self.panel, label = _("Done"), pos = (100, 0))
            self.edb.Bind(wx.EVT_BUTTON, lambda e: self.done(e, callback))
            self.eb = wx.Button(self.panel, label = _("Cancel"), pos = (200, 0))
            self.eb.Bind(wx.EVT_BUTTON, lambda e: self.Destroy())
        self.sb = wx.Button(self.panel, label = _("Snap to Z = 0"), pos = (00, 255))
        self.cb = wx.Button(self.panel, label = _("Put at 100, 100"), pos = (0, 280))
        self.db = wx.Button(self.panel, label = _("Delete"), pos = (0, 305))
        self.ab = wx.Button(self.panel, label = _("Auto"), pos = (0, 330))
        self.cl.Bind(wx.EVT_BUTTON, self.clear)
        self.lb.Bind(wx.EVT_BUTTON, self.right)
        self.sb.Bind(wx.EVT_BUTTON, self.snap)
        self.cb.Bind(wx.EVT_BUTTON, self.center)
        self.db.Bind(wx.EVT_BUTTON, self.delete)
        self.ab.Bind(wx.EVT_BUTTON, self.autoplate)
        self.basedir = "."
        self.models = {}
        #self.SetBackgroundColour((10, 10, 10))
        self.mainsizer.Add(self.panel)
        #self.mainsizer.AddSpacer(10)
        if glview:
            self.s = stlview.TestGlPanel(self, (580, 580))
        else:
            self.s = showstl(self, (580, 580), (0, 0))
        self.mainsizer.Add(self.s, 1, wx.EXPAND)
        self.SetSizer(self.mainsizer)
        #self.mainsizer.Fit(self)
        self.Layout()

        #self.SetClientSize(size)

    def autoplate(self, event):
        print _("Autoplating")
        separation = 2
        bedsize = [200, 200, 100]
        cursor = [0, 0, 0]
        newrow = 0
        max = [0, 0]
        for i in self.models:
            self.models[i].offsets[2] = -1.0 * self.models[i].dims[4]
            x = abs(self.models[i].dims[0] - self.models[i].dims[1])
            y = abs(self.models[i].dims[2] - self.models[i].dims[3])
            centre = [x / 2, y / 2]
            centreoffset = [self.models[i].dims[0] + centre[0], self.models[i].dims[2] + centre[1]]
            if (cursor[0] + x + separation) >= bedsize[0]:
                cursor[0] = 0
                cursor[1] += newrow + separation
                newrow = 0
            if (newrow == 0) or (newrow < y):
                newrow = y
            #To the person who works out why the offsets are applied differently here:
            # Good job, it confused the hell out of me.
            self.models[i].offsets[0] = cursor[0] + centre[0] - centreoffset[0]
            self.models[i].offsets[1] = cursor[1] + centre[1] - centreoffset[1]
            if (max[0] == 0) or (max[0] < (cursor[0] + x)):
                max[0] = cursor[0] + x
            if (max[1] == 0) or (max[1] < (cursor[1] + x)):
                max[1] = cursor[1] + x
            cursor[0] += x + separation
            if (cursor[1] + y) >= bedsize[1]:
                print _("Bed full, sorry sir :(")
                self.Refresh()
                return
        centreoffset = [(bedsize[0] - max[0]) / 2, (bedsize[1] - max[1]) / 2]
        for i in self.models:
            self.models[i].offsets[0] += centreoffset[0]
            self.models[i].offsets[1] += centreoffset[1]
        self.Refresh()

    def clear(self, event):
        result = wx.MessageBox(_('Are you sure you want to clear the grid? All unsaved changes will be lost.'), _('Clear the grid?'),
            wx.YES_NO | wx.ICON_QUESTION)
        if (result == 2):
            self.models = {}
            self.l.Clear()
            self.Refresh()

    def center(self, event):
        i = self.l.GetSelection()
        if i != -1:
            m = self.models[self.l.GetString(i)]
            m.offsets = [100, 100, m.offsets[2]]
            self.Refresh()

    def snap(self, event):
        i = self.l.GetSelection()
        if i != -1:
            m = self.models[self.l.GetString(i)]
            m.offsets[2] = -1.0 * min(m.facetsminz)[0]
            #print m.offsets[2]
            self.Refresh()

    def delete(self, event):
        i = self.l.GetSelection()
        if i != -1:
            del self.models[self.l.GetString(i)]
            self.l.Delete(i)
            self.l.Select(self.l.GetCount() - 1)
            self.Refresh()

    def done(self, event, cb):
        try:
            os.mkdir("tempstl")
        except:
            pass
        name = "tempstl/" + str(int(time.time()) % 10000) + ".stl"
        self.writefiles(name)
        if cb is not None:
            cb(name)
        self.Destroy()

    def export(self, event):
        dlg = wx.FileDialog(self, _("Pick file to save to"), self.basedir, style = wx.FD_SAVE)
        dlg.SetWildcard(_("STL files (;*.stl;*.STL;)"))
        if(dlg.ShowModal() == wx.ID_OK):
            name = dlg.GetPath()
            self.writefiles(name)
        dlg.Destroy()

    def writefiles(self, name):
        sf = open(name.replace(".", "_") + ".scad", "w")
        facets = []
        for i in self.models.values():

            r = i.rot
            o = i.offsets
            sf.write('translate([%s, %s, %s]) rotate([0, 0, %s]) import_stl("%s");\n' % (str(o[0]), str(o[1]), str(o[2]), r, os.path.split(i.filename)[1]))
            if r != 0:
                i = i.rotate([0, 0, r])
            if o != [0, 0, 0]:
                i = i.translate([o[0], o[1], o[2]])
            facets += i.facets
        sf.close()
        stltool.emitstl(name, facets, "plater_export")
        print _("wrote %s") % name

    def right(self, event):
        dlg = wx.FileDialog(self, _("Pick file to load"), self.basedir, style = wx.FD_OPEN | wx.FD_FILE_MUST_EXIST)
        dlg.SetWildcard(_("STL files (;*.stl;*.STL;)|*.stl|OpenSCAD files (;*.scad;)|*.scad"))
        if(dlg.ShowModal() == wx.ID_OK):
            name = dlg.GetPath()
            if (name.lower().endswith(".stl")):
                self.load_stl(event, name)
            elif (name.lower().endswith(".scad")):
                self.load_scad(event, name)
        dlg.Destroy()

    def load_scad(self, event, name):
        lf = open(name)
        s = [i.replace("\n", "").replace("\r", "").replace(";", "") for i in lf if "stl" in i]
        lf.close()

        for i in s:
            parts = i.split()
            for part in parts:
                if 'translate' in part:
                    translate_list = evalme(part)
            for part in parts:
                if 'rotate' in part:
                    rotate_list = evalme(part)
            for part in parts:
                if 'import' in part:
                    stl_file = evalme(part)

            newname = os.path.split(stl_file.lower())[1]
            c = 1
            while newname in self.models:
                newname = os.path.split(stl_file.lower())[1]
                newname = newname + "(%d)" % c
                c += 1
            stl_path = os.path.join(os.path.split(name)[0:len(os.path.split(stl_file)) - 1])
            stl_full_path = os.path.join(stl_path[0], str(stl_file))
            self.load_stl_into_model(stl_full_path, stl_file, translate_list, rotate_list[2])

    def load_stl(self, event, name):
        if not(os.path.exists(name)):
            return
        path = os.path.split(name)[0]
        self.basedir = path
        t = time.time()
        #print name
        if name.lower().endswith(".stl"):
            #Filter out the path, just show the STL filename.
            self.load_stl_into_model(name, name)
        self.Refresh()
        #print time.time()-t

    def load_stl_into_model(self, path, name, offset = [0, 0, 0], rotation = 0, scale = [1.0, 1.0, 1.0]):
        newname = os.path.split(name.lower())[1]
        c = 1
        while newname in self.models:
            newname = os.path.split(name.lower())[1]
            newname = newname + "(%d)" % c
            c += 1
        self.models[newname] = stltool.stl(path)
        self.models[newname].offsets = offset
        self.models[newname].rot = rotation
        self.models[newname].scale = scale
        self.models[newname].filename = name
        minx, miny, minz, maxx, maxy, maxz = (10000, 10000, 10000, 0, 0, 0)
        for i in self.models[newname].facets:
            for j in i[1]:
                if j[0] < minx:
                    minx = j[0]
                if j[1] < miny:
                    miny = j[1]
                if j[2] < minz:
                    minz = j[2]
                if j[0] > maxx:
                    maxx = j[0]
                if j[1] > maxy:
                    maxy = j[1]
                if j[2] > maxz:
                    maxz = j[2]
        self.models[newname].dims = [minx, maxx, miny, maxy, minz, maxz]
        #if minx < 0:
        #    self.models[newname].offsets[0] = -minx
        #if miny < 0:
        #    self.models[newname].offsets[1] = -miny
        self.s.drawmodel(self.models[newname], 2)

        #print time.time() - t
        self.l.Append(newname)
        i = self.l.GetSelection()
        if i == wx.NOT_FOUND:
            self.l.Select(0)

        self.l.Select(self.l.GetCount() - 1)


if __name__ == '__main__':
    app = wx.App(False)
    main = stlwin()
    main.Show()
    app.MainLoop()