kopia lustrzana https://github.com/inkstitch/inkstitch
Add extension: Lettering along path (#1937)
Kaalleen
GitHub
rodzic
af65e9b8af
commit
815b3c6035
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@ -52,6 +52,7 @@ jobs:
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sudo apt-get install gettext
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# for wxPython
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sudo apt install libnotify4
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sudo apt install glib-networking libsdl2-dev libsdl2-2.0-0
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# for PyGObject
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@ -48,6 +48,8 @@ from .stitch_plan_preview import StitchPlanPreview
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from .stitch_plan_preview_undo import StitchPlanPreviewUndo
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from .zip import Zip
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from.lettering_along_path import LetteringAlongPath
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__all__ = extensions = [StitchPlanPreview,
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StitchPlanPreviewUndo,
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DensityMap,
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@ -75,6 +77,7 @@ __all__ = extensions = [StitchPlanPreview,
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LetteringRemoveKerning,
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LetteringCustomFontDir,
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LetteringForceLockStitches,
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LetteringAlongPath,
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LettersToFont,
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Troubleshoot,
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RemoveEmbroiderySettings,
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@ -0,0 +1,144 @@
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# Authors: see git history
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#
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# Copyright (c) 2021 Authors
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# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
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import json
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import sys
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from math import atan2, degrees
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from inkex import Boolean, Transform, errormsg
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from shapely.ops import substring
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from ..elements import Stroke
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from ..i18n import _
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from ..svg import get_correction_transform
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from ..svg.tags import EMBROIDERABLE_TAGS, INKSTITCH_LETTERING, SVG_GROUP_TAG
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from ..utils import DotDict
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from ..utils import Point as InkstitchPoint
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from .base import InkstitchExtension
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class LetteringAlongPath(InkstitchExtension):
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'''
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This extension aligns an Ink/Stitch Lettering group along a path
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'''
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def __init__(self, *args, **kwargs):
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InkstitchExtension.__init__(self, *args, **kwargs)
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self.arg_parser.add_argument("-o", "--options", type=str, default=None, dest="page_1")
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self.arg_parser.add_argument("-i", "--info", type=str, default=None, dest="page_2")
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self.arg_parser.add_argument("-s", "--stretch-spaces", type=Boolean, default=False, dest="stretch_spaces")
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def effect(self):
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# we ignore everything but the first path/text
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text, path = self.get_selection()
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self.load_settings(text)
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glyphs = [glyph for glyph in text.iterdescendants(SVG_GROUP_TAG) if len(glyph.label) == 1]
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if not glyphs:
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errormsg(_("The text doesn't contain any glyphs."))
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sys.exit(1)
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path = Stroke(path).as_multi_line_string().geoms[0]
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path_length = path.length
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# overall bounding box - get from direct glyph parent
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text_bbox = glyphs[0].getparent().bounding_box()
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text_y = text_bbox.bottom
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if self.options.stretch_spaces:
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text_content = self.settings["text"]
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space_indices = [i for i, t in enumerate(text_content) if t == " "]
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text_width = text_bbox.width
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if len(text_content) - 1 != 0:
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stretch_space = (path_length - text_width) / (len(text_content) - 1)
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else:
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stretch_space = 0
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else:
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stretch_space = 0
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space_indices = []
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self.transform_glyphs(glyphs, path, stretch_space, space_indices, text_y)
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def transform_glyphs(self, glyphs, path, stretch_space, space_indices, text_y):
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text_scale = Transform(f'scale({self.settings["scale"] / 100})')
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distance = 0
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old_bbox = None
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i = 0
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for glyph in glyphs:
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# dimensions
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bbox = glyph.bounding_box()
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left = bbox.left
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width = bbox.width
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# adjust position
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if old_bbox:
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right = old_bbox.right
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distance += left - right + stretch_space
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if self.options.stretch_spaces and i in space_indices:
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distance += stretch_space
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i += 1
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new_distance = distance + width
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# calculate and apply transform
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first = substring(path, distance, distance)
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last = substring(path, new_distance, new_distance)
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angle = degrees(atan2(last.y - first.y, last.x - first.x)) % 360
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translate = InkstitchPoint(first.x, first.y) - InkstitchPoint(left, text_y)
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transform = Transform(f"rotate({angle}, {first.x}, {first.y}) translate({translate.x} {translate.y})")
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correction_transform = Transform(get_correction_transform(glyph))
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glyph.transform = correction_transform @ transform @ glyph.transform @ text_scale
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# set values for next iteration
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distance = new_distance
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old_bbox = bbox
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i += 1
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def load_settings(self, text):
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"""Load the settings saved into the text element"""
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self.settings = DotDict({
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"text": "",
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"back_and_forth": False,
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"font": None,
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"scale": 100,
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"trim_option": 0
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})
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if INKSTITCH_LETTERING in text.attrib:
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try:
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self.settings.update(json.loads(text.get(INKSTITCH_LETTERING)))
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except (TypeError, ValueError):
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pass
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def get_selection(self):
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groups = list()
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paths = list()
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for node in self.svg.selection:
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lettering = False
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if node.tag == SVG_GROUP_TAG and INKSTITCH_LETTERING in node.attrib:
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groups.append(node)
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lettering = True
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continue
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for group in node.iterancestors(SVG_GROUP_TAG):
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if INKSTITCH_LETTERING in group.attrib:
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groups.append(group)
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lettering = True
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break
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if not lettering and node.tag in EMBROIDERABLE_TAGS:
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paths.append(node)
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if not groups or not paths:
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errormsg(_("Please select one path and one Ink/Stitch lettering group."))
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sys.exit(1)
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return [groups[0], paths[0]]
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@ -1,7 +1,7 @@
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./pyembroidery
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# inkex is not currently uploaded to pypi, the version there is extremely out of date
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inkex @ git+https://gitlab.com/inkscape/extensions.git@EXTENSIONS_AT_INKSCAPE_1.2.1
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inkex @ git+https://gitlab.com/inkscape/extensions.git@EXTENSIONS_AT_INKSCAPE_1.2.2
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# lower bound to allow for the use of system packages on Debian and distros that have updated to 4.2
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# CI adds an == 4.1.1 constraint for prebuilt packages
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@ -0,0 +1,32 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<inkscape-extension translationdomain="inkstitch" xmlns="http://www.inkscape.org/namespace/inkscape/extension">
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<name>Lettering along path</name>
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<id>org.inkstitch.lettering_along_path</id>
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<param name="extension" type="string" gui-hidden="true">lettering_along_path</param>
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<effect needs-live-preview="false">
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<object-type>all</object-type>
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<effects-menu>
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<submenu name="Ink/Stitch" translatable="no" />
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</effects-menu>
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</effect>
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<param name="options" type="notebook">
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<page name="options" gui-text="Options">
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<param name="stretch-spaces" type="bool" gui-text="Stretch"
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gui-description="Expand glyph and word spacing to stretch lettering over the entire path">false</param>
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</page>
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<page name="info" gui-text="Help">
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<label appearance="header">This extension bends an Ink/Stitch text to a path.</label>
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<label>Select Ink/Stitch text and a path before running this extension.</label>
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<spacer />
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<label>The text needs to meet these conditions:</label>
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<label indent="1">* The text consists of only one line of text</label>
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<label indent="1">* The text should not be too large for the given path</label>
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<label indent="1">* Text text should not contain trim symbols</label>
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<spacer />
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<label>The stretch option defines whether the spaces between glyphs should be expanded so that the text stretches over the entire path.</label>
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</page>
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</param>
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<script>
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{{ command_tag | safe }}
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</script>
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</inkscape-extension>
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