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import sys
import os
import numpy
import wx
import inkex
import simplestyle
from embroider import patches_to_stitches, stitches_to_polylines
class EmbroiderySimulator(wx.Frame):
def __init__(self, *args, **kwargs):
stitch_file = kwargs.pop('stitch_file', None)
patches = kwargs.pop('patches', None)
self.on_close_hook = kwargs.pop('on_close', None)
self.frame_period = kwargs.pop('frame_period', 80)
self.stitches_per_frame = kwargs.pop('stitches_per_frame', 1)
wx.Frame.__init__(self, *args, **kwargs)
self.panel = wx.Panel(self, wx.ID_ANY)
self.panel.SetFocus()
self.load(stitch_file, patches)
self.buffer = wx.Bitmap(self.width, self.height)
self.dc = wx.MemoryDC()
self.dc.SelectObject(self.buffer)
self.canvas = wx.GraphicsContext.Create(self.dc)
self.clear()
self.Bind(wx.EVT_SIZE, self.on_size)
self.panel.Bind(wx.EVT_PAINT, self.on_paint)
self.panel.Bind(wx.EVT_KEY_DOWN, self.on_key_down)
self.timer = None
self.last_pos = None
self.Bind(wx.EVT_CLOSE, self.on_close)
def load(self, stitch_file=None, patches=None):
if stitch_file:
self.segments = self._parse_stitch_file(stitch_file)
elif patches:
self.segments = self._patches_to_segments(patches)
else:
return
self.width, self.height = self.get_dimensions()
def on_key_down(self, event):
keycode = event.GetKeyCode()
if keycode == ord("+") or keycode == ord("=") or keycode == wx.WXK_UP:
if self.frame_period == 1:
self.stitches_per_frame *= 2
else:
self.frame_period = self.frame_period / 2
elif keycode == ord("-") or keycode == ord("_") or keycode == wx.WXK_DOWN:
if self.stitches_per_frame == 1:
self.frame_period *= 2
else:
self.stitches_per_frame /= 2
elif keycode == ord("Q"):
self.Close()
elif keycode == ord('P'):
if self.timer.IsRunning():
self.timer.Stop()
else:
self.timer.Start(self.frame_period)
self.frame_period = max(1, self.frame_period)
self.stitches_per_frame = max(self.stitches_per_frame, 1)
if self.timer.IsRunning():
self.timer.Stop()
self.timer.Start(self.frame_period)
def _strip_quotes(self, string):
if string.startswith('"') and string.endswith('"'):
string = string[1:-1]
return string
def _patches_to_segments(self, patches):
stitches = patches_to_stitches(patches)
segments = []
last_pos = None
last_color = None
pen = None
for stitch in stitches:
pos = (stitch.x, stitch.y)
if stitch.color == last_color:
segments.append(((last_pos, pos), pen))
else:
pen = wx.Pen(simplestyle.parseColor(stitch.color))
last_pos = pos
last_color = stitch.color
return segments
def _parse_stitch_file(self, stitch_file_path):
# "$","1","229","229","229","(null)","(null)"
# "*","JUMP","1.595898","48.731899"
# "*","STITCH","1.595898","48.731899"
segments = []
pos = (0, 0)
color = wx.Brush('black')
cut = True
with open(stitch_file_path) as stitch_file:
for line in stitch_file:
fields = line.strip().split(",")
fields = [self._strip_quotes(field) for field in fields]
symbol, command = fields[:2]
if symbol == "$":
red, green, blue = fields[2:5]
color = wx.Pen((int(red), int(green), int(blue)))
elif symbol == "*":
if command == "COLOR":
# change color
# The next command should be a JUMP, and we'll need to skip stitching.
cut = True
elif command == "JUMP" or command == "STITCH":
# JUMP just means a long stitch, really.
x, y = fields[2:]
new_pos = (int(float(x) * 10), int(float(y) * 10))
if not cut:
segments.append(((pos, new_pos), color))
cut = False
pos = new_pos
return segments
def get_dimensions(self):
width = 0
height = 0
for segment in self.segments:
(start_x, start_y), (end_x, end_y) = segment[0]
width = max(width, start_x, end_x)
height = max(height, start_y, end_y)
return width, height
def go(self):
self.clear()
self.current_stitch = 0
self.timer = wx.PyTimer(self.draw_one_frame)
self.timer.Start(self.frame_period)
def on_close(self, event):
self.stop()
if self.on_close_hook:
self.on_close_hook()
self.Destroy()
def stop(self):
if self.timer:
self.timer.Stop()
def clear(self):
self.dc.SetBackground(wx.Brush('white'))
self.dc.Clear()
self.last_pos = None
self.Refresh()
def on_size(self, e):
# ensure that the whole canvas is visible
window_width, window_height = self.GetSize()
client_width, client_height = self.GetClientSize()
decorations_width = window_width - client_width
decorations_height = window_height - client_height
self.SetSize((self.width + decorations_width, self.height + decorations_height))
e.Skip()
def on_paint(self, e):
dc = wx.PaintDC(self.panel)
dc.DrawBitmap(self.buffer, 0, 0)
if self.last_pos:
dc.DrawLine(self.last_pos[0] - 10, self.last_pos[1], self.last_pos[0] + 10, self.last_pos[1])
dc.DrawLine(self.last_pos[0], self.last_pos[1] - 10, self.last_pos[0], self.last_pos[1] + 10)
def redraw(self):
dc = wx.ClientDC(self)
dc.DrawBitmap(self.buffer, 0, 0)
def draw_one_frame(self):
for i in xrange(self.stitches_per_frame):
try:
((x1, y1), (x2, y2)), color = self.segments[self.current_stitch]
y1 = self.height - y1
y2 = self.height - y2
self.canvas.SetPen(color)
self.canvas.DrawLines(((x1, y1), (x2, y2)))
self.Refresh()
self.current_stitch += 1
self.last_pos = (x2, y2)
except IndexError:
self.timer.Stop()
class SimulateEffect(inkex.Effect):
def __init__(self):
inkex.Effect.__init__(self)
self.OptionParser.add_option("-P", "--path",
action="store", type="string",
dest="path", default=".",
help="Directory in which to store output file")
def effect(self):
app = wx.App()
frame = EmbroiderySimulator(None, -1, "Embroidery Simulation", wx.DefaultPosition, size=(1000, 1000), stitch_file=self.get_stitch_file())
app.SetTopWindow(frame)
frame.Show()
wx.CallAfter(frame.go)
app.MainLoop()
def get_stitch_file(self):
svg_filename = self.document.getroot().get(inkex.addNS('docname', 'sodipodi'))
csv_filename = svg_filename.replace('.svg', '.csv')
stitch_file = os.path.join(self.options.path, csv_filename)
return stitch_file
if __name__ == "__main__":
effect = SimulateEffect()
effect.affect()
sys.exit(0)
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