kopia lustrzana https://github.com/inkstitch/inkstitch
314 wiersze
9.4 KiB
Python
314 wiersze
9.4 KiB
Python
import sys
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import os
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import numpy
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import wx
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import inkex
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import simplestyle
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import colorsys
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import inkstitch
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from inkstitch import PIXELS_PER_MM
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from embroider import _, patches_to_stitches, get_elements, elements_to_patches
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class EmbroiderySimulator(wx.Frame):
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def __init__(self, *args, **kwargs):
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stitch_file = kwargs.pop('stitch_file', None)
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patches = kwargs.pop('patches', None)
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self.on_close_hook = kwargs.pop('on_close', None)
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self.frame_period = kwargs.pop('frame_period', 80)
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self.stitches_per_frame = kwargs.pop('stitches_per_frame', 1)
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self.target_duration = kwargs.pop('target_duration', None)
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self.margin = 10
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screen_rect = wx.Display(0).ClientArea
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self.max_width = kwargs.pop('max_width', screen_rect.GetWidth())
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self.max_height = kwargs.pop('max_height', screen_rect.GetHeight())
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self.scale = 1
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wx.Frame.__init__(self, *args, **kwargs)
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self.panel = wx.Panel(self, wx.ID_ANY)
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self.panel.SetFocus()
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self.load(stitch_file, patches)
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if self.target_duration:
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self.adjust_speed(self.target_duration)
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self.buffer = wx.Bitmap(self.width * self.scale + self.margin * 2, self.height * self.scale + self.margin * 2)
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self.dc = wx.MemoryDC()
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self.dc.SelectObject(self.buffer)
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self.canvas = wx.GraphicsContext.Create(self.dc)
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self.clear()
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self.Bind(wx.EVT_SIZE, self.on_size)
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self.panel.Bind(wx.EVT_PAINT, self.on_paint)
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self.panel.Bind(wx.EVT_KEY_DOWN, self.on_key_down)
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self.timer = None
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self.last_pos = None
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self.Bind(wx.EVT_CLOSE, self.on_close)
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def load(self, stitch_file=None, patches=None):
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if stitch_file:
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self.mirror = True
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self.segments = self._parse_stitch_file(stitch_file)
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elif patches:
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self.mirror = False
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self.segments = self._patches_to_segments(patches)
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else:
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return
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self.trim_margins()
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self.calculate_dimensions()
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def adjust_speed(self, duration):
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self.frame_period = 1000 * float(duration) / len(self.segments)
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self.stitches_per_frame = 1
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while self.frame_period < 1.0:
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self.frame_period *= 2
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self.stitches_per_frame *= 2
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def on_key_down(self, event):
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keycode = event.GetKeyCode()
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if keycode == ord("+") or keycode == ord("=") or keycode == wx.WXK_UP:
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if self.frame_period == 1:
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self.stitches_per_frame *= 2
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else:
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self.frame_period = self.frame_period / 2
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elif keycode == ord("-") or keycode == ord("_") or keycode == wx.WXK_DOWN:
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if self.stitches_per_frame == 1:
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self.frame_period *= 2
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else:
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self.stitches_per_frame /= 2
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elif keycode == ord("Q"):
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self.Close()
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elif keycode == ord('P'):
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if self.timer.IsRunning():
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self.timer.Stop()
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else:
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self.timer.Start(self.frame_period)
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elif keycode == ord("R"):
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self.stop()
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self.clear()
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self.go()
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self.frame_period = max(1, self.frame_period)
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self.stitches_per_frame = max(self.stitches_per_frame, 1)
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if self.timer.IsRunning():
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self.timer.Stop()
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self.timer.Start(self.frame_period)
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def _strip_quotes(self, string):
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if string.startswith('"') and string.endswith('"'):
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string = string[1:-1]
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return string
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def color_to_pen(self, color):
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# python colorsys module uses floats from 0 to 1.0
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color = [value / 255.0 for value in color]
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hls = list(colorsys.rgb_to_hls(*color))
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# Our background is white. If the color is too close to white, then
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# it won't be visible. Capping lightness should make colors visible
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# without changing them too much.
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hls[1] = min(hls[1], 0.85)
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color = colorsys.hls_to_rgb(*hls)
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# convert back to values in the range of 0-255
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color = [value * 255 for value in color]
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return wx.Pen(color)
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def _patches_to_segments(self, patches):
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stitches = patches_to_stitches(patches)
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segments = []
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last_pos = None
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last_color = None
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pen = None
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trimming = False
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for stitch in stitches:
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if stitch.trim:
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trimming = True
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last_pos = None
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continue
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if trimming:
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if stitch.jump:
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continue
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else:
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trimming = False
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pos = (stitch.x, stitch.y)
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if stitch.color == last_color:
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if last_pos:
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segments.append(((last_pos, pos), pen))
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else:
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pen = self.color_to_pen(simplestyle.parseColor(stitch.color))
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last_pos = pos
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last_color = stitch.color
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return segments
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def all_coordinates(self):
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for segment in self.segments:
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start, end = segment[0]
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yield start
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yield end
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def trim_margins(self):
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"""remove any unnecessary whitespace around the design"""
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min_x = sys.maxint
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min_y = sys.maxint
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for x, y in self.all_coordinates():
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min_x = min(min_x, x)
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min_y = min(min_y, y)
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new_segments = []
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for segment in self.segments:
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(start, end), color = segment
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new_segment = (
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(
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(start[0] - min_x, start[1] - min_y),
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(end[0] - min_x, end[1] - min_y),
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),
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color
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)
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new_segments.append(new_segment)
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self.segments = new_segments
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def calculate_dimensions(self):
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# 0.01 avoids a division by zero below for designs with no width or
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# height (e.g. a straight vertical or horizontal line)
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width = 0.01
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height = 0.01
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for x, y in self.all_coordinates():
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width = max(width, x)
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height = max(height, y)
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self.width = width
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self.height = height
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self.scale = min(float(self.max_width) / width, float(self.max_height) / height)
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# make room for decorations and the margin
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self.scale *= 0.95
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def go(self):
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self.clear()
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self.current_stitch = 0
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if not self.timer:
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self.timer = wx.PyTimer(self.draw_one_frame)
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self.timer.Start(self.frame_period)
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def on_close(self, event):
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self.stop()
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if self.on_close_hook:
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self.on_close_hook()
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self.Destroy()
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def stop(self):
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if self.timer:
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self.timer.Stop()
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def clear(self):
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self.dc.SetBackground(wx.Brush('white'))
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self.dc.Clear()
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self.last_pos = None
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self.Refresh()
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def on_size(self, e):
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# ensure that the whole canvas is visible
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window_width, window_height = self.GetSize()
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client_width, client_height = self.GetClientSize()
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decorations_width = window_width - client_width
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decorations_height = window_height - client_height
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self.SetSize((self.width * self.scale + decorations_width + self.margin * 2,
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self.height * self.scale + decorations_height + self.margin * 2))
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e.Skip()
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def on_paint(self, e):
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dc = wx.PaintDC(self.panel)
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dc.Blit(0, 0, self.buffer.GetWidth(), self.buffer.GetHeight(), self.dc, 0, 0)
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if self.last_pos:
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dc.DrawLine(self.last_pos[0] - 10, self.last_pos[1], self.last_pos[0] + 10, self.last_pos[1])
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dc.DrawLine(self.last_pos[0], self.last_pos[1] - 10, self.last_pos[0], self.last_pos[1] + 10)
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def draw_one_frame(self):
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for i in xrange(self.stitches_per_frame):
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try:
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((x1, y1), (x2, y2)), color = self.segments[self.current_stitch]
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if self.mirror:
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y1 = self.height - y1
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y2 = self.height - y2
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x1 = x1 * self.scale + self.margin
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y1 = y1 * self.scale + self.margin
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x2 = x2 * self.scale + self.margin
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y2 = y2 * self.scale + self.margin
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self.canvas.SetPen(color)
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self.canvas.DrawLines(((x1, y1), (x2, y2)))
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self.Refresh()
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self.current_stitch += 1
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self.last_pos = (x2, y2)
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except IndexError:
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self.timer.Stop()
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class SimulateEffect(inkex.Effect):
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def __init__(self):
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inkex.Effect.__init__(self)
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self.OptionParser.add_option("-P", "--path",
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action="store", type="string",
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dest="path", default=".",
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help="Directory in which to store output file")
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def effect(self):
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patches = elements_to_patches(get_elements(self))
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app = wx.App()
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frame = EmbroiderySimulator(None, -1, _("Embroidery Simulation"), wx.DefaultPosition, size=(1000, 1000), patches=patches)
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app.SetTopWindow(frame)
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frame.Show()
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wx.CallAfter(frame.go)
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app.MainLoop()
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if __name__ == "__main__":
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effect = SimulateEffect()
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effect.affect()
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sys.exit(0)
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