diff options
Diffstat (limited to 'lib/extensions/lettering_along_path.py')
| -rw-r--r-- | lib/extensions/lettering_along_path.py | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/lib/extensions/lettering_along_path.py b/lib/extensions/lettering_along_path.py index d059bb14..6f1ca7a6 100644 --- a/lib/extensions/lettering_along_path.py +++ b/lib/extensions/lettering_along_path.py @@ -79,24 +79,26 @@ class TextAlongPath: return self.load_settings() - self.font = get_font_by_id(self.settings.font) + self.font = get_font_by_id(self.settings.font, False) if self.font is None: errormsg(_("Couldn't identify the font specified in the lettering group.")) return self.font_scale = self.settings.scale / 100 - - if self.glyphs[0].get('transform', None) is not None: - self._reset_glyph_transforms() + self._reset_glyph_transforms() hidden_commands = self.hide_commands() self.glyphs_along_path() self.restore_commands(hidden_commands) def _reset_glyph_transforms(self): + # reset text transforms + self.text.set('transform', get_correction_transform(self.text)) + if self.font is not None: try: text_group = list(self.text.iterchildren(SVG_GROUP_TAG))[0] + text_group.set('transform', f'scale({self.font_scale})') except IndexError: pass for glyph in text_group.iterchildren(): @@ -110,19 +112,29 @@ class TextAlongPath: self.settings.use_trim_symbols ) self.glyphs = [glyph for glyph in rendered_text.iterdescendants(SVG_GROUP_TAG) if glyph.get('inkstitch:letter-group', '') == 'glyph'] + self.bake_transforms_recursively(text_group) + + def bake_transforms_recursively(self, element): + '''applies transforms of the text group to the glyph group''' + for child in element: + child.transform = element.transform @ child.transform + if child.tag == SVG_GROUP_TAG and not child.get('inkstitch:letter-group', '') == 'glyph': + self.bake_transforms_recursively(child) + element.transform = None def glyphs_along_path(self): path = self.path - for text_line in self.text.getchildren()[0].iterchildren(): - self.transform_glyphs(path, text_line) + for i, text_line in enumerate(self.text.getchildren()[0].iterchildren()): + self.transform_glyphs(path, text_line, i) # offset path for the next line - path = path.offset_curve(self.font.leading) + line_offset = self.font.leading * self.font_scale + path = path.offset_curve(line_offset) - def transform_glyphs(self, path, line): - text_scale = Transform(f'scale({self.font_scale})') + def transform_glyphs(self, path, line, iterator): text_width = line.bounding_box().width - text_baseline = line.bounding_box(text_scale).bottom + text_baseline = line.bounding_box().bottom + backwards = self.settings.back_and_forth and iterator % 1 == 1 if self.text_position == 'stretch': num_spaces = len(line) - 1 @@ -130,7 +142,7 @@ class TextAlongPath: line_glyphs = [glyph for glyph in line.iterdescendants(SVG_GROUP_TAG) if glyph.get('inkstitch:letter-group', '') == 'glyph'] total_stretch_spaces = len(line_glyphs) - 1 + num_spaces - stretch_space = (path.length - text_width * self.font_scale) / total_stretch_spaces + stretch_space = (path.length - text_width) / total_stretch_spaces else: stretch_space = 0 @@ -139,10 +151,14 @@ class TextAlongPath: old_bbox = None words = line.getchildren() + if backwards: + words.reverse() if self.font.text_direction == "rtl": words.reverse() for word in words: glyphs = word.getchildren() + if backwards: + glyphs.reverse() if self.font.text_direction == "rtl": glyphs.reverse() for glyph in glyphs: @@ -163,12 +179,16 @@ class TextAlongPath: first = path.interpolate(distance) last = path.interpolate(new_distance) + if not first or not last: + # unusable path, nothing we can do + continue + angle = degrees(atan2(last.y - first.y, last.x - first.x)) % 360 translate = InkstitchPoint(first.x, first.y) - InkstitchPoint(left, text_baseline) transform = Transform(f"rotate({angle}, {first.x}, {first.y}) translate({translate.x} {translate.y})") correction_transform = Transform(get_correction_transform(glyph)) - glyph.transform = correction_transform @ transform @ glyph.transform @ text_scale + glyph.transform = correction_transform @ transform @ glyph.transform # set values for next iteration distance = new_distance @@ -177,7 +197,6 @@ class TextAlongPath: distance += stretch_space def get_start_position(self, text_length, path_length): - text_length = text_length * self.font_scale start_position = 0 if self.text_position == 'center': start_position = (path_length - text_length) / 2 |