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# -*- coding: UTF-8 -*-
from base64 import b64encode, b64decode
import json
import os
import sys
import inkex
import wx
from ..elements import nodes_to_elements
from ..gui import PresetsPanel, SimulatorPreview
from ..i18n import _
from ..lettering import Font
from ..svg.tags import SVG_PATH_TAG, SVG_GROUP_TAG, INKSCAPE_LABEL, INKSTITCH_LETTERING
from ..utils import get_bundled_dir, DotDict
from .commands import CommandsExtension
class LetteringFrame(wx.Frame):
def __init__(self, *args, **kwargs):
# begin wxGlade: MyFrame.__init__
self.group = kwargs.pop('group')
self.cancel_hook = kwargs.pop('on_cancel', None)
wx.Frame.__init__(self, None, wx.ID_ANY,
_("Ink/Stitch Lettering")
)
self.preview = SimulatorPreview(self, target_duration=1)
self.presets_panel = PresetsPanel(self)
self.load_settings()
# options
self.options_box = wx.StaticBox(self, wx.ID_ANY, label=_("Options"))
self.back_and_forth_checkbox = wx.CheckBox(self, label=_("Stitch lines of text back and forth"))
self.back_and_forth_checkbox.SetValue(self.settings.back_and_forth)
self.Bind(wx.EVT_CHECKBOX, lambda event: self.on_change("back_and_forth", event))
# text editor
self.text_editor_box = wx.StaticBox(self, wx.ID_ANY, label=_("Text"))
self.font_chooser = wx.ComboBox(self, wx.ID_ANY)
self.update_font_list()
self.text_editor = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.TE_DONTWRAP, value=self.settings.text)
self.Bind(wx.EVT_TEXT, lambda event: self.on_change("text", event))
self.cancel_button = wx.Button(self, wx.ID_ANY, _("Cancel"))
self.cancel_button.Bind(wx.EVT_BUTTON, self.cancel)
self.Bind(wx.EVT_CLOSE, self.cancel)
self.apply_button = wx.Button(self, wx.ID_ANY, _("Apply and Quit"))
self.apply_button.Bind(wx.EVT_BUTTON, self.apply)
self.__do_layout()
# end wxGlade
def load_settings(self):
try:
if INKSTITCH_LETTERING in self.group.attrib:
self.settings = DotDict(json.loads(b64decode(self.group.get(INKSTITCH_LETTERING))))
return
except (TypeError, ValueError):
pass
self.settings = DotDict({
"text": u"",
"back_and_forth": True,
"font": "small_font"
})
def save_settings(self):
# We base64 encode the string before storing it in an XML attribute.
# In theory, lxml should properly html-encode the string, using HTML
# entities like as necessary. However, we've found that Inkscape
# incorrectly interpolates the HTML entities upon reading the
# extension's output, rather than leaving them as is.
#
# Details:
# https://bugs.launchpad.net/inkscape/+bug/1804346
self.group.set(INKSTITCH_LETTERING, b64encode(json.dumps(self.settings)))
def on_change(self, attribute, event):
self.settings[attribute] = event.GetEventObject().GetValue()
self.preview.update()
def generate_patches(self, abort_early=None):
patches = []
font_path = os.path.join(get_bundled_dir("fonts"), self.settings.font)
font = Font(font_path)
try:
lines = font.render_text(self.settings.text, back_and_forth=self.settings.back_and_forth)
self.group[:] = lines
elements = nodes_to_elements(self.group.iterdescendants(SVG_PATH_TAG))
for element in elements:
if abort_early and abort_early.is_set():
# cancel; settings were updated and we need to start over
return []
patches.extend(element.embroider(None))
except SystemExit:
raise
except Exception:
raise
# Ignore errors. This can be things like incorrect paths for
# satins or division by zero caused by incorrect param values.
pass
return patches
def update_font_list(self):
pass
def get_preset_data(self):
# called by self.presets_panel
preset = {}
return preset
def apply_preset_data(self):
# called by self.presets_panel
return
def get_preset_suite_name(self):
# called by self.presets_panel
return "lettering"
def apply(self, event):
self.preview.disable()
self.generate_patches()
self.save_settings()
self.close()
def close(self):
self.preview.close()
self.Destroy()
def cancel(self, event):
if self.cancel_hook:
self.cancel_hook()
self.close()
def __do_layout(self):
outer_sizer = wx.BoxSizer(wx.VERTICAL)
options_sizer = wx.StaticBoxSizer(self.options_box, wx.VERTICAL)
options_sizer.Add(self.back_and_forth_checkbox, 1, wx.EXPAND | wx.LEFT | wx.TOP | wx.RIGHT | wx.BOTTOM, 10)
outer_sizer.Add(options_sizer, 0, wx.EXPAND | wx.LEFT | wx.TOP | wx.RIGHT, 10)
text_editor_sizer = wx.StaticBoxSizer(self.text_editor_box, wx.VERTICAL)
text_editor_sizer.Add(self.font_chooser, 0, wx.ALL, 10)
text_editor_sizer.Add(self.text_editor, 1, wx.EXPAND | wx.LEFT | wx.RIGHT | wx.BOTTOM, 10)
outer_sizer.Add(text_editor_sizer, 1, wx.EXPAND | wx.LEFT | wx.TOP | wx.RIGHT, 10)
outer_sizer.Add(self.presets_panel, 0, wx.EXPAND | wx.EXPAND | wx.ALL, 10)
buttons_sizer = wx.BoxSizer(wx.HORIZONTAL)
buttons_sizer.Add(self.cancel_button, 0, wx.ALIGN_RIGHT | wx.RIGHT, 10)
buttons_sizer.Add(self.apply_button, 0, wx.ALIGN_RIGHT | wx.RIGHT | wx.BOTTOM, 10)
outer_sizer.Add(buttons_sizer, 0, wx.ALIGN_RIGHT, 10)
self.SetSizerAndFit(outer_sizer)
self.Layout()
# SetSizerAndFit determined the minimum size that fits all the controls
# and set the window's minimum size so that the user can't make it
# smaller. It also set the window to that size. We'd like to give the
# user a bit more room for text, so we'll add some height.
size = self.GetSize()
size.height = size.height + 200
self.SetSize(size)
class Lettering(CommandsExtension):
COMMANDS = ["trim"]
def __init__(self, *args, **kwargs):
self.cancelled = False
CommandsExtension.__init__(self, *args, **kwargs)
def cancel(self):
self.cancelled = True
def get_or_create_group(self):
if self.selected:
groups = set()
for node in self.selected.itervalues():
if node.tag == SVG_GROUP_TAG and INKSTITCH_LETTERING in node.attrib:
groups.add(node)
for group in node.iterancestors(SVG_GROUP_TAG):
if INKSTITCH_LETTERING in group.attrib:
groups.add(group)
if len(groups) > 1:
inkex.errormsg(_("Please select only one block of text."))
sys.exit(1)
elif len(groups) == 0:
inkex.errormsg(_("You've selected objects that were not created by the Lettering extension. "
"Please clear your selection or select different objects before running Lettering again."))
sys.exit(1)
else:
return list(groups)[0]
else:
self.ensure_current_layer()
return inkex.etree.SubElement(self.current_layer, SVG_GROUP_TAG, {
INKSCAPE_LABEL: _("Ink/Stitch Lettering")
})
def effect(self):
app = wx.App()
frame = LetteringFrame(group=self.get_or_create_group(), on_cancel=self.cancel)
# position left, center
current_screen = wx.Display.GetFromPoint(wx.GetMousePosition())
display = wx.Display(current_screen)
display_size = display.GetClientArea()
frame_size = frame.GetSize()
frame.SetPosition((display_size[0], display_size[3] / 2 - frame_size[1] / 2))
frame.Show()
app.MainLoop()
if self.cancelled:
# This prevents the superclass from outputting the SVG, because we
# may have modified the DOM.
sys.exit(0)
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