kopia lustrzana https://github.com/inkstitch/inkstitch
344 wiersze
12 KiB
Python
344 wiersze
12 KiB
Python
import sys
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import numpy
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import wx
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import colorsys
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from itertools import izip
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from .svg import PIXELS_PER_MM, color_block_to_point_lists
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from .i18n import _
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class EmbroiderySimulator(wx.Frame):
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def __init__(self, *args, **kwargs):
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stitch_plan = kwargs.pop('stitch_plan', None)
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self.x_position = kwargs.pop('x_position', 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 = 30
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screen_rect = self.get_current_screen_rect()
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self.max_width = kwargs.pop('max_width', screen_rect[2])
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self.max_height = kwargs.pop('max_height', screen_rect[3])
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self.scale = 1
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self.min_width = 600
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if self.max_width < self.min_width:
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self.max_width = self.min_width
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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.SetDoubleBuffered(True)
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self.sizer = wx.BoxSizer(wx.VERTICAL)
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self.button_sizer = wx.BoxSizer(wx.HORIZONTAL)
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self.button_label = (
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[_("Speed up"), _('Press + or arrow up to speed up'), self.animation_speed_up],
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[_("Slow down"), _('Press - or arrow down to slow down'), self.animation_slow_down],
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[_("Pause"), _("Press P to pause the animation"), self.animation_pause],
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[_("Restart"), _("Press R to restart the animation"), self.animation_restart],
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[_("Quit"), _("Press Q to close the simulation window"), self.animation_quit])
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self.buttons = []
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for i in range(0, len(self.button_label)):
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self.buttons.append(wx.Button(self, -1, self.button_label[i][0]))
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self.button_sizer.Add(self.buttons[i], 1, wx.EXPAND)
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self.buttons[i].SetToolTip(self.button_label[i][1])
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self.buttons[i].Bind(wx.EVT_BUTTON, self.button_label[i][2])
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self.sizer.Add(self.panel, 1, wx.EXPAND)
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self.sizer.Add(self.button_sizer, 0, wx.EXPAND)
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self.SetSizer(self.sizer)
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self.load(stitch_plan)
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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.set_stitch_counter(1)
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shortcut_keys = [
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(wx.ACCEL_NORMAL, ord('+'), self.animation_speed_up),
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(wx.ACCEL_NORMAL, ord('='), self.animation_speed_up),
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(wx.ACCEL_SHIFT, ord('='), self.animation_speed_up),
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(wx.ACCEL_NORMAL, wx.WXK_ADD, self.animation_speed_up),
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(wx.ACCEL_NORMAL, wx.WXK_NUMPAD_ADD, self.animation_speed_up),
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(wx.ACCEL_NORMAL, wx.WXK_NUMPAD_UP, self.animation_speed_up),
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(wx.ACCEL_NORMAL, wx.WXK_UP, self.animation_speed_up),
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(wx.ACCEL_NORMAL, ord('-'), self.animation_slow_down),
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(wx.ACCEL_NORMAL, ord('_'), self.animation_slow_down),
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(wx.ACCEL_NORMAL, wx.WXK_SUBTRACT, self.animation_slow_down),
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(wx.ACCEL_NORMAL, wx.WXK_NUMPAD_SUBTRACT, self.animation_slow_down),
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(wx.ACCEL_NORMAL, wx.WXK_NUMPAD_DOWN, self.animation_slow_down),
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(wx.ACCEL_NORMAL, wx.WXK_DOWN, self.animation_slow_down),
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(wx.ACCEL_NORMAL, ord('r'), self.animation_restart),
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(wx.ACCEL_NORMAL, ord('p'), self.animation_pause),
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(wx.ACCEL_NORMAL, ord('q'), self.animation_quit)]
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accel_entries = []
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for shortcut_key in shortcut_keys:
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eventId = wx.NewId()
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accel_entries.append((shortcut_key[0], shortcut_key[1], eventId))
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self.Bind(wx.EVT_MENU, shortcut_key[2], id=eventId)
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accel_table = wx.AcceleratorTable(accel_entries)
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self.SetAcceleratorTable(accel_table)
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self.Bind(wx.EVT_SIZE, self.on_size)
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self.Bind(wx.EVT_CLOSE, self.on_close)
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self.panel.Bind(wx.EVT_PAINT, self.on_paint)
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self.panel.SetFocus()
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self.timer = None
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self.last_pos = None
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def get_current_screen_rect(self):
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current_screen = wx.Display.GetFromPoint(wx.GetMousePosition())
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display = wx.Display(current_screen)
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screen_rect = display.GetClientArea()
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return screen_rect
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def load(self, stitch_plan=None):
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if stitch_plan:
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self.mirror = False
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self.segments = self._stitch_plan_to_segments(stitch_plan)
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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 animation_speed_up(self, event):
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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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self.animation_update_timer()
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def animation_slow_down(self, event):
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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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self.animation_update_timer()
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def animation_restart(self, event):
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self.stop()
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self.clear()
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self.go()
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def animation_pause(self, event):
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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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def animation_quit(self, event):
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self.Close()
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def animation_update_timer(self):
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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 set_stitch_counter(self, current_stitch):
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if hasattr(self.panel, 'stitch_counter'):
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self.panel.stitch_counter.SetLabel(_("Stitch # ") + str(current_stitch) + ' / ' + str(len(self.segments) + 1))
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else:
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self.font = wx.Font(9, wx.FONTFAMILY_DEFAULT, wx.FONTSTYLE_NORMAL, wx.FONTWEIGHT_NORMAL)
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self.panel.stitch_counter = wx.StaticText(self, label=_("Stitch #") + '1 / ' + str(len(self.segments)), pos=(30, 10))
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self.panel.stitch_counter.SetFont(self.font)
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self.panel.stitch_counter.SetForegroundColour('red')
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self.panel.stitch_counter.SetBackgroundColour('white')
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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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return wx.Pen(color.visible_on_white.rgb)
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def _stitch_plan_to_segments(self, stitch_plan):
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segments = []
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for color_block in stitch_plan:
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pen = self.color_to_pen(color_block.color)
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for point_list in color_block_to_point_lists(color_block):
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# if there's only one point, there's nothing to do, so skip
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if len(point_list) < 2:
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continue
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for start, end in izip(point_list[:-1], point_list[1:]):
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segments.append(((start, end), pen))
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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 - self.margin * 2) / width, float(self.max_height - self.margin * 2 - 40) / 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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# If we keep a reference here, wx crashes when the process exits.
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self.canvas = None
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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 + 40
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setsize_window_width = self.width * self.scale + decorations_width + self.margin * 2
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setsize_window_height = (self.height) * self.scale + decorations_height + self.margin * 2
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# set minimum width (force space for control buttons)
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if setsize_window_width < self.min_width:
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setsize_window_width = self.min_width
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self.SetSize(( setsize_window_width, setsize_window_height))
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# center the simulation on screen if not called by params
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# else center vertically
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if self.x_position == None:
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self.Centre()
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else:
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display_rect = self.get_current_screen_rect()
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self.SetPosition((self.x_position, display_rect[3] / 2 - setsize_window_height / 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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self.set_stitch_counter(self.current_stitch + 1)
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except IndexError:
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self.timer.Stop()
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