├── .gitignore
├── Italify.png
├── Italify.glyphsFilter
└── Contents
│ ├── MacOS
│ └── plugin
│ ├── Resources
│ ├── IBdialog.nib
│ ├── IBdialog.xib
│ └── plugin.py
│ └── Info.plist
├── README.md
└── LICENSE
/.gitignore:
--------------------------------------------------------------------------------
1 | /.idea/
2 |
--------------------------------------------------------------------------------
/Italify.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/eweracs/Italify/HEAD/Italify.png
--------------------------------------------------------------------------------
/Italify.glyphsFilter/Contents/MacOS/plugin:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/eweracs/Italify/HEAD/Italify.glyphsFilter/Contents/MacOS/plugin
--------------------------------------------------------------------------------
/Italify.glyphsFilter/Contents/Resources/IBdialog.nib:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/eweracs/Italify/HEAD/Italify.glyphsFilter/Contents/Resources/IBdialog.nib
--------------------------------------------------------------------------------
/Italify.glyphsFilter/Contents/Info.plist:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 | CFBundleDevelopmentRegion
6 | en
7 | CFBundleExecutable
8 | plugin
9 | CFBundleIdentifier
10 | com.eweracs.italify
11 | CFBundleInfoDictionaryVersion
12 | 6.0
13 | CFBundleName
14 | Italify
15 | CFBundleShortVersionString
16 | 1.0
17 | CFBundleVersion
18 | 1
19 | UpdateFeedURL
20 | ____OnlineUrlToThisPlist____
21 | productPageURL
22 | ____ProductPageURL____
23 | productReleaseNotes
24 | ____LatestReleaseNotes____
25 | NSHumanReadableCopyright
26 | Copyright, Sebastian Carewe, 2022
27 | NSPrincipalClass
28 | Italify
29 | PyMainFileNames
30 |
31 | plugin.py
32 |
33 |
34 |
35 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Italify
2 | Work-in-progress Glyphs 3 plugin to create synthetic italics (best for sans-serif designs). Round segments are slanted/rotated according to the balance set with the slider, straight segments are treated automatically.
3 |
4 | !!! VERY BUGGY !!!
5 |
6 | Since this plugin is still very much in development, a lot of outlines won't be transformed as expected. **Please add issues here showing your outlines, before and after filter application**. This helps me figure out what's going on and hopefully improve the filter logic.
7 |
8 | ## How does Italify work?
9 | - Using the slider, you can define a ratio of slant and rotate that will be applied to the entire outline.
10 |
11 | ## What is Smart Italify?
12 | - Round and straight segments are treated indepently of each other.
13 | - Round segments are slanted and rotated, like in simple italify.
14 | - Straight segments are slanted and rotated at an independent amount: perfectly vertical segments are only rotated, while perfectly horizontal segments are only slanted. This **perfectly preserves stem weight** and thus contrast. Additionally, horizontal elements (like the crossbar of an e, or terminals) stay horizontal.
15 |
16 | Please reach out if you know how to best incorporate removal of italic extremes :)
17 |
18 |
19 | 
20 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | Apache License
2 | Version 2.0, January 2004
3 | http://www.apache.org/licenses/
4 |
5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
6 |
7 | 1. Definitions.
8 |
9 | "License" shall mean the terms and conditions for use, reproduction,
10 | and distribution as defined by Sections 1 through 9 of this document.
11 |
12 | "Licensor" shall mean the copyright owner or entity authorized by
13 | the copyright owner that is granting the License.
14 |
15 | "Legal Entity" shall mean the union of the acting entity and all
16 | other entities that control, are controlled by, or are under common
17 | control with that entity. For the purposes of this definition,
18 | "control" means (i) the power, direct or indirect, to cause the
19 | direction or management of such entity, whether by contract or
20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the
21 | outstanding shares, or (iii) beneficial ownership of such entity.
22 |
23 | "You" (or "Your") shall mean an individual or Legal Entity
24 | exercising permissions granted by this License.
25 |
26 | "Source" form shall mean the preferred form for making modifications,
27 | including but not limited to software source code, documentation
28 | source, and configuration files.
29 |
30 | "Object" form shall mean any form resulting from mechanical
31 | transformation or translation of a Source form, including but
32 | not limited to compiled object code, generated documentation,
33 | and conversions to other media types.
34 |
35 | "Work" shall mean the work of authorship, whether in Source or
36 | Object form, made available under the License, as indicated by a
37 | copyright notice that is included in or attached to the work
38 | (an example is provided in the Appendix below).
39 |
40 | "Derivative Works" shall mean any work, whether in Source or Object
41 | form, that is based on (or derived from) the Work and for which the
42 | editorial revisions, annotations, elaborations, or other modifications
43 | represent, as a whole, an original work of authorship. For the purposes
44 | of this License, Derivative Works shall not include works that remain
45 | separable from, or merely link (or bind by name) to the interfaces of,
46 | the Work and Derivative Works thereof.
47 |
48 | "Contribution" shall mean any work of authorship, including
49 | the original version of the Work and any modifications or additions
50 | to that Work or Derivative Works thereof, that is intentionally
51 | submitted to Licensor for inclusion in the Work by the copyright owner
52 | or by an individual or Legal Entity authorized to submit on behalf of
53 | the copyright owner. For the purposes of this definition, "submitted"
54 | means any form of electronic, verbal, or written communication sent
55 | to the Licensor or its representatives, including but not limited to
56 | communication on electronic mailing lists, source code control systems,
57 | and issue tracking systems that are managed by, or on behalf of, the
58 | Licensor for the purpose of discussing and improving the Work, but
59 | excluding communication that is conspicuously marked or otherwise
60 | designated in writing by the copyright owner as "Not a Contribution."
61 |
62 | "Contributor" shall mean Licensor and any individual or Legal Entity
63 | on behalf of whom a Contribution has been received by Licensor and
64 | subsequently incorporated within the Work.
65 |
66 | 2. Grant of Copyright License. Subject to the terms and conditions of
67 | this License, each Contributor hereby grants to You a perpetual,
68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable
69 | copyright license to reproduce, prepare Derivative Works of,
70 | publicly display, publicly perform, sublicense, and distribute the
71 | Work and such Derivative Works in Source or Object form.
72 |
73 | 3. Grant of Patent License. Subject to the terms and conditions of
74 | this License, each Contributor hereby grants to You a perpetual,
75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable
76 | (except as stated in this section) patent license to make, have made,
77 | use, offer to sell, sell, import, and otherwise transfer the Work,
78 | where such license applies only to those patent claims licensable
79 | by such Contributor that are necessarily infringed by their
80 | Contribution(s) alone or by combination of their Contribution(s)
81 | with the Work to which such Contribution(s) was submitted. If You
82 | institute patent litigation against any entity (including a
83 | cross-claim or counterclaim in a lawsuit) alleging that the Work
84 | or a Contribution incorporated within the Work constitutes direct
85 | or contributory patent infringement, then any patent licenses
86 | granted to You under this License for that Work shall terminate
87 | as of the date such litigation is filed.
88 |
89 | 4. Redistribution. You may reproduce and distribute copies of the
90 | Work or Derivative Works thereof in any medium, with or without
91 | modifications, and in Source or Object form, provided that You
92 | meet the following conditions:
93 |
94 | (a) You must give any other recipients of the Work or
95 | Derivative Works a copy of this License; and
96 |
97 | (b) You must cause any modified files to carry prominent notices
98 | stating that You changed the files; and
99 |
100 | (c) You must retain, in the Source form of any Derivative Works
101 | that You distribute, all copyright, patent, trademark, and
102 | attribution notices from the Source form of the Work,
103 | excluding those notices that do not pertain to any part of
104 | the Derivative Works; and
105 |
106 | (d) If the Work includes a "NOTICE" text file as part of its
107 | distribution, then any Derivative Works that You distribute must
108 | include a readable copy of the attribution notices contained
109 | within such NOTICE file, excluding those notices that do not
110 | pertain to any part of the Derivative Works, in at least one
111 | of the following places: within a NOTICE text file distributed
112 | as part of the Derivative Works; within the Source form or
113 | documentation, if provided along with the Derivative Works; or,
114 | within a display generated by the Derivative Works, if and
115 | wherever such third-party notices normally appear. The contents
116 | of the NOTICE file are for informational purposes only and
117 | do not modify the License. You may add Your own attribution
118 | notices within Derivative Works that You distribute, alongside
119 | or as an addendum to the NOTICE text from the Work, provided
120 | that such additional attribution notices cannot be construed
121 | as modifying the License.
122 |
123 | You may add Your own copyright statement to Your modifications and
124 | may provide additional or different license terms and conditions
125 | for use, reproduction, or distribution of Your modifications, or
126 | for any such Derivative Works as a whole, provided Your use,
127 | reproduction, and distribution of the Work otherwise complies with
128 | the conditions stated in this License.
129 |
130 | 5. Submission of Contributions. Unless You explicitly state otherwise,
131 | any Contribution intentionally submitted for inclusion in the Work
132 | by You to the Licensor shall be under the terms and conditions of
133 | this License, without any additional terms or conditions.
134 | Notwithstanding the above, nothing herein shall supersede or modify
135 | the terms of any separate license agreement you may have executed
136 | with Licensor regarding such Contributions.
137 |
138 | 6. Trademarks. This License does not grant permission to use the trade
139 | names, trademarks, service marks, or product names of the Licensor,
140 | except as required for reasonable and customary use in describing the
141 | origin of the Work and reproducing the content of the NOTICE file.
142 |
143 | 7. Disclaimer of Warranty. Unless required by applicable law or
144 | agreed to in writing, Licensor provides the Work (and each
145 | Contributor provides its Contributions) on an "AS IS" BASIS,
146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
147 | implied, including, without limitation, any warranties or conditions
148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
149 | PARTICULAR PURPOSE. You are solely responsible for determining the
150 | appropriateness of using or redistributing the Work and assume any
151 | risks associated with Your exercise of permissions under this License.
152 |
153 | 8. Limitation of Liability. In no event and under no legal theory,
154 | whether in tort (including negligence), contract, or otherwise,
155 | unless required by applicable law (such as deliberate and grossly
156 | negligent acts) or agreed to in writing, shall any Contributor be
157 | liable to You for damages, including any direct, indirect, special,
158 | incidental, or consequential damages of any character arising as a
159 | result of this License or out of the use or inability to use the
160 | Work (including but not limited to damages for loss of goodwill,
161 | work stoppage, computer failure or malfunction, or any and all
162 | other commercial damages or losses), even if such Contributor
163 | has been advised of the possibility of such damages.
164 |
165 | 9. Accepting Warranty or Additional Liability. While redistributing
166 | the Work or Derivative Works thereof, You may choose to offer,
167 | and charge a fee for, acceptance of support, warranty, indemnity,
168 | or other liability obligations and/or rights consistent with this
169 | License. However, in accepting such obligations, You may act only
170 | on Your own behalf and on Your sole responsibility, not on behalf
171 | of any other Contributor, and only if You agree to indemnify,
172 | defend, and hold each Contributor harmless for any liability
173 | incurred by, or claims asserted against, such Contributor by reason
174 | of your accepting any such warranty or additional liability.
175 |
176 | END OF TERMS AND CONDITIONS
177 |
178 | APPENDIX: How to apply the Apache License to your work.
179 |
180 | To apply the Apache License to your work, attach the following
181 | boilerplate notice, with the fields enclosed by brackets "[]"
182 | replaced with your own identifying information. (Don't include
183 | the brackets!) The text should be enclosed in the appropriate
184 | comment syntax for the file format. We also recommend that a
185 | file or class name and description of purpose be included on the
186 | same "printed page" as the copyright notice for easier
187 | identification within third-party archives.
188 |
189 | Copyright [yyyy] [name of copyright owner]
190 |
191 | Licensed under the Apache License, Version 2.0 (the "License");
192 | you may not use this file except in compliance with the License.
193 | You may obtain a copy of the License at
194 |
195 | http://www.apache.org/licenses/LICENSE-2.0
196 |
197 | Unless required by applicable law or agreed to in writing, software
198 | distributed under the License is distributed on an "AS IS" BASIS,
199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
200 | See the License for the specific language governing permissions and
201 | limitations under the License.
202 |
--------------------------------------------------------------------------------
/Italify.glyphsFilter/Contents/Resources/IBdialog.xib:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
53 |
54 |
55 |
56 |
57 |
58 |
59 |
60 |
61 |
62 |
63 |
64 |
65 |
66 |
67 |
68 |
69 |
70 |
71 |
72 |
73 |
74 |
75 |
76 |
77 |
88 |
99 |
100 |
101 |
102 |
103 |
104 |
105 |
106 |
107 |
108 |
109 |
110 |
111 |
112 |
113 |
114 |
115 |
116 |
117 |
118 |
119 |
120 |
121 |
122 |
123 |
124 |
125 |
134 |
135 |
136 |
137 |
138 |
139 |
140 |
--------------------------------------------------------------------------------
/Italify.glyphsFilter/Contents/Resources/plugin.py:
--------------------------------------------------------------------------------
1 | # encoding: utf-8
2 |
3 | ###########################################################################################################
4 | #
5 | #
6 | # Filter with dialog Plugin
7 | #
8 | # Read the docs:
9 | # https://github.com/schriftgestalt/GlyphsSDK/tree/master/Python%20Templates/Filter%20with%20Dialog
10 | #
11 | # For help on the use of Interface Builder:
12 | # https://github.com/schriftgestalt/GlyphsSDK/tree/master/Python%20Templates
13 | #
14 | #
15 | ###########################################################################################################
16 |
17 | # TODO: Handle paths in cw direction
18 |
19 | from __future__ import division, print_function, unicode_literals
20 | import objc
21 | from GlyphsApp import *
22 | from GlyphsApp.plugins import *
23 | from math import tan, pi, atan2, cos, sin, radians
24 | from Foundation import NSAffineTransform, NSMakePoint, NSMidX, NSMidY
25 |
26 |
27 | class Italify(FilterWithDialog):
28 | dialog = objc.IBOutlet()
29 | resetAngleButton = objc.IBOutlet()
30 | select_tool = NSClassFromString("GSToolSelect").alloc().init()
31 |
32 | @objc.python_method
33 | def settings(self):
34 | self.menuName = Glyphs.localize({"en": "Italify"})
35 | self.actionButtonLabel = Glyphs.localize({
36 | "en": "Apply",
37 | "de": "Anwenden",
38 | "fr": "Appliquer",
39 | "es": "Aplicar",
40 | "pt": "Apliquer",
41 | "jp": "申し込む",
42 | "ko": "대다",
43 | "zh": "应用",
44 | })
45 | self.loadNib("IBdialog", __file__)
46 |
47 | @objc.python_method
48 | def start(self):
49 | Glyphs.defaults["com.eweracs.italify.angle"] = Glyphs.font.selectedLayers[0].master.italicAngle
50 | self.update()
51 |
52 | @objc.IBAction
53 | def setUpdate_(self, sender):
54 | self.update()
55 |
56 | @objc.IBAction
57 | def resetAngle_(self, sender):
58 | Glyphs.defaults["com.eweracs.italify.angle"] = Glyphs.font.selectedLayers[0].master.italicAngle
59 | self.update()
60 |
61 | @objc.python_method
62 | def filter(self, layer, inEditView, customParameters):
63 | if inEditView:
64 | angle = Glyphs.defaults["com.eweracs.italify.angle"] or 0
65 | ratio = Glyphs.defaults["com.eweracs.italify.ratio"] or 0
66 | distinguish_straight_and_curved = Glyphs.boolDefaults["com.eweracs.italify.distinguishStraightAndCurved"]
67 | add_extremes = Glyphs.boolDefaults["com.eweracs.italify.addExtremes"]
68 | else:
69 | angle = float(customParameters.get("angle", 0))
70 | ratio = float(customParameters.get("ratio", 0))
71 | distinguish_straight_and_curved = bool(customParameters.get("smart", False))
72 | add_extremes = bool(customParameters.get("extremes", False))
73 |
74 | rotation_angle = angle * ratio
75 | shear_angle = angle * (1 - ratio)
76 | bounds = layer.bounds
77 | centre = NSMakePoint(NSMidX(bounds), NSMidY(bounds))
78 |
79 | processed_paths = []
80 | for path in layer.paths:
81 | processed_paths.append(self.process_path(path, centre, angle, distinguish_straight_and_curved, rotation_angle, shear_angle))
82 |
83 | if len(processed_paths):
84 | for i in range(len(layer.shapes) - 1, -1, -1):
85 | path = layer.shapes[i]
86 | if isinstance(path, GSPath):
87 | del layer.shapes[i]
88 | for processed_path in processed_paths:
89 | layer.shapes.append(processed_path)
90 |
91 | for anchor in layer.anchors:
92 | anchor.position = self.shear_point(centre, angle, anchor.position)
93 |
94 | if add_extremes:
95 | layer.addExtremePoints()
96 |
97 | layer.roundCoordinates()
98 |
99 | @objc.python_method
100 | def process_path(self, path, centre, angle, distinguish_straight_and_curved, rotation_angle, shear_angle):
101 | if distinguish_straight_and_curved:
102 | processed_path = self.smart_italify(path, centre, angle, rotation_angle, shear_angle)
103 | else:
104 | processed_path = self.simple_italify(path, centre, rotation_angle, shear_angle)
105 |
106 | return processed_path
107 |
108 | @objc.python_method
109 | def smart_italify(self, path, centre, angle, rotation_angle, shear_angle):
110 | # Get path segments
111 | transformed_segments = []
112 | path_segments = self.split_path_into_segments(path)
113 | for segment in path_segments:
114 | proxy_segment = [node.position for node in segment]
115 | # process each segment
116 | # process straight segment
117 | if len(segment) == 2:
118 | transformed_segment = self.process_straight_segment(proxy_segment, centre, angle)
119 | transformed_segments.append(transformed_segment)
120 |
121 | # process curved segment
122 | elif len(segment) == 4:
123 | transformed_segment = self.rotate_and_shear(proxy_segment, centre, rotation_angle, shear_angle)
124 | transformed_segments.append(transformed_segment)
125 |
126 | proxy_layer = GSLayer()
127 | path_list = []
128 | for index, transformed_segment in enumerate(transformed_segments):
129 |
130 | # integrate zero segments (duplicate nodes) into previous/next segment
131 | if transformed_segment[0] == transformed_segment[-1]:
132 | transformed_segment[0] = transformed_segments[index - 1][-1]
133 | transformed_segment[-1] = transformed_segments[(index + 1) % len(transformed_segments)][0]
134 |
135 | # integrate segment into adjoining segments if offcurve node of previous or next segment
136 | # is at same angle as segment
137 | modulo_index = (index + 1) % len(transformed_segments)
138 | segment_angle = atan2(
139 | transformed_segment[1].y - transformed_segment[0].y,
140 | transformed_segment[1].x - transformed_segment[0].x
141 | )
142 |
143 | if len(transformed_segment) == 2:
144 |
145 | previous_segment = transformed_segments[index - 1]
146 | next_segment = transformed_segments[modulo_index]
147 |
148 | previous_segment_angle = None
149 | next_segment_angle = None
150 |
151 | # Check if current segment has same angle as previous or next segment offcurve (smooth connection)
152 | if len(previous_segment) == 4:
153 | previous_segment_angle = atan2(
154 | previous_segment[-1].y - previous_segment[-2].y,
155 | previous_segment[-1].x - previous_segment[-2].x
156 | )
157 | if len(next_segment) == 4:
158 | next_segment_angle = atan2(
159 | next_segment[1].y - next_segment[0].y,
160 | next_segment[1].x - next_segment[0].x
161 | )
162 |
163 | if previous_segment_angle and abs(segment_angle - previous_segment_angle) < 0.01:
164 | transformed_segment[0] = previous_segment[-1]
165 | if next_segment_angle and abs(segment_angle - next_segment_angle) < 0.01:
166 | transformed_segment[-1] = next_segment[0]
167 |
168 | # Check if previous and next segment connecting offcurves are at same angle as each other
169 | if (previous_segment_angle
170 | and next_segment_angle
171 | and abs(previous_segment_angle - next_segment_angle) < 0.02
172 | ):
173 | transformed_segment[0] = previous_segment[-1]
174 | transformed_segment[-1] = next_segment[0]
175 |
176 |
177 | segment_path = self.make_path_from_segment(transformed_segment)
178 | proxy_layer.paths.append(segment_path)
179 | path_list.append(segment_path)
180 |
181 | # iterate over all segments (which are all separate paths) to connect them into one path
182 | for index in range(len(proxy_layer.paths) - 1):
183 |
184 | # count the number of nodes in the first path
185 | original_path_node_count = len(proxy_layer.paths[0].nodes)
186 |
187 | # Iterate over the nodes of the second path to attach
188 | for index, node in enumerate(proxy_layer.paths[1].nodes):
189 | # Skip the first node if it is the same as the last node of the first path
190 | if index == 0 and node.position == proxy_layer.paths[0].nodes[-1].position:
191 | continue
192 |
193 | # copy the second path's nodes to the first one
194 | proxy_layer.paths[0].nodes.append(node)
195 |
196 | # remove the path which was copied to the first path from the layer
197 | proxy_layer.shapes.remove(proxy_layer.paths[1])
198 |
199 | # make a corner at the new connection
200 | proxy_layer.paths[0].makeCornerFirstNodeIndex_endNodeIndex_(
201 | original_path_node_count - 1,
202 | original_path_node_count
203 | )
204 |
205 | # Close the path
206 | proxy_path = proxy_layer.paths[0]
207 | proxy_path.closed = True
208 |
209 | # check the type of connection at the first node and either make corner (straight segments) or remove
210 | # duplicate nodes (curved segment on either side)
211 | first_node = proxy_path.nodes[-1]
212 |
213 | if first_node.prevNode.type == OFFCURVE or first_node.nextNode.type == OFFCURVE:
214 | proxy_path.nodes.remove(proxy_path.nodes[-1].nextOncurveNode())
215 | else:
216 | proxy_path.makeCornerFirstNodeIndex_endNodeIndex_(-1, 0)
217 |
218 | proxy_path.nodes[-1].previousOncurveNode().makeNodeFirst()
219 |
220 | # Add transformed segments to the background
221 | # self.visualise_segments(transformed_segments, path.parent)
222 |
223 | return proxy_path
224 |
225 | @objc.python_method
226 | def simple_italify(self, path, centre, rotation_angle, shear_angle):
227 | for node in path.nodes:
228 | node.position = self.rotate_point(centre, rotation_angle, node.position)
229 | node.position = self.shear_point(centre, shear_angle, node.position)
230 |
231 | return path
232 |
233 | @objc.python_method
234 | def make_path_from_segment(self, segment):
235 | new_path = GSPath()
236 | for index, point in enumerate(segment):
237 | node = GSNode(point)
238 | if len(segment) == 2:
239 | node.type = LINE
240 | if len(segment) == 4:
241 | if index == 0:
242 | node.type = LINE
243 | if index == 1 or index == 2:
244 | node.type = OFFCURVE
245 | if index == 3:
246 | node.type = CURVE
247 | new_path.addNode_(node)
248 | return new_path
249 |
250 | @objc.python_method
251 | def visualise_segments(self, segments, layer):
252 | for segment in segments:
253 | new_path = self.make_path_from_segment(segment)
254 | layer.background.paths.append(new_path)
255 |
256 | @objc.python_method
257 | def process_straight_segment(self, segment, centre, angle):
258 | point_1 = segment[0]
259 | point_2 = segment[1]
260 |
261 | dx = point_2.x - point_1.x
262 | dy = point_2.y - point_1.y
263 |
264 | # Calculate the segment angle
265 | segment_angle = atan2(dy, dx)
266 |
267 | # Convert to degrees and normalize to 0-180 range
268 | angle_deg = (segment_angle * 180 / pi) % 180
269 |
270 | # Calculate shear and rotation factors
271 | # 0 degrees (horizontal) -> full shear, no rotation
272 | # 90 degrees (vertical) -> full rotation, no shear
273 | shear_factor = cos(radians(angle_deg))
274 | rotation_factor = sin(radians(angle_deg))
275 |
276 | # Apply transformations
277 | shear_angle = angle * shear_factor
278 | rotation_angle = angle * rotation_factor
279 |
280 | transformed_segment = self.rotate_and_shear(segment, centre, rotation_angle, shear_angle)
281 |
282 | return transformed_segment
283 |
284 | @objc.python_method
285 | def rotate_and_shear(self, segment, centre, rotation_angle, shear_angle):
286 | transformed_segment = []
287 | for point in segment:
288 | rotated_point = self.rotate_point(centre, rotation_angle, point)
289 | sheared_point = self.shear_point(centre, shear_angle, rotated_point)
290 | transformed_segment.append(sheared_point)
291 | return transformed_segment
292 |
293 | @objc.python_method
294 | def split_path_into_segments(self, path):
295 | segments = []
296 | for node in path.nodes:
297 | if node.type != OFFCURVE:
298 | if node.nextNode.type != OFFCURVE:
299 | segment = [node, node.nextNode]
300 | segments.append(segment)
301 | if node.nextNode.type == OFFCURVE:
302 | segment = [node, node.nextNode, node.nextNode.nextNode, node.nextNode.nextNode.nextNode]
303 | segments.append(segment)
304 | return segments
305 |
306 | @objc.python_method
307 | def shear_point(self, centre, angle, point):
308 | transform = NSAffineTransform.new()
309 | shear = tan(radians(angle))
310 | transform.shearXBy_atCenter_(shear, centre.y)
311 | transformed_point = transform.transformPoint_(point)
312 |
313 | return transformed_point
314 |
315 | @objc.python_method
316 | def rotate_point(self, centre, angle, point):
317 | rotate = NSAffineTransform.new()
318 | rotate.translateXBy_yBy_(centre.x, centre.y)
319 | rotate.rotateByDegrees_(-angle)
320 | rotate.translateXBy_yBy_(-centre.x, -centre.y)
321 | transformed_point = rotate.transformPoint_(point)
322 |
323 | return transformed_point
324 |
325 | @objc.python_method
326 | def customParameterString(self):
327 | angle = Glyphs.defaults["com.eweracs.italify.angle"] or 0
328 | ratio = Glyphs.defaults["com.eweracs.italify.ratio"] or 0
329 | smart = int(Glyphs.boolDefaults["com.eweracs.italify.distinguishStraightAndCurved"])
330 | add_extremes = int(Glyphs.boolDefaults["com.eweracs.italify.addExtremes"])
331 | return f"Italify;angle:{angle};ratio:{ratio};smart:{smart};extremes:{add_extremes}"
332 |
333 | @objc.python_method
334 | def __file__(self):
335 | return __file__
--------------------------------------------------------------------------------