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font-patcher: Add possibility to just rescale existing glyphs

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[why]
When the destination font has box drawing glyphs and we change the
'cell' size, we need to rescale the existing glyphs (so that they fill
the new 'cell'.

[how]
Add a new parameter attribute that skips the copying und just works on
the scaling of glyphs that have this.

For a correct message only the default attribute is checked.

[note]
This just add the possibility, it is not yet used.

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>
This commit is contained in:
Fini Jastrow 2023-02-15 18:33:11 +01:00
parent 702e31716c
commit d07f7253b9
1 changed files with 25 additions and 16 deletions
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41
font-patcher
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@ -6,7 +6,7 @@
from __future__ import absolute_import, print_function, unicode_literals
# Change the script version when you edit this script:
script_version = "3.5.12"
script_version = "3.6.0"
version = "2.3.3"
projectName = "Nerd Fonts"
@ -736,12 +736,13 @@ class font_patcher:
def setup_patch_set(self):
""" Creates list of dicts to with instructions on copying glyphs from each symbol font into self.sourceFont """
# Supported params: overlap | careful | xy-ratio | lazy
# Supported params: overlap | careful | xy-ratio | dont_copy
# Overlap value is used horizontally but vertically limited to 0.01
# Careful does not overwrite/modify existing glyphs
# The xy-ratio limits the x-scale for a given y-scale to make the ratio <= this value (to prevent over-wide glyphs)
# '1' means occupu 1 cell (default for 'xy')
# '2' means occupy 2 cells (default for 'pa')
# Dont_copy does not overwrite existing glyphs but rescales the preexisting ones
# Powerline dividers
SYM_ATTR_POWERLINE = {
@ -1181,7 +1182,9 @@ class font_patcher:
glyphSetLength = len(symbolFontSelection)
if not self.args.quiet:
sys.stdout.write("Adding {} Glyphs from {} Set\n".format(glyphSetLength, setName))
modify = attributes['default']['params'].get('dont_copy')
sys.stdout.write("{} {} Glyphs from {} Set\n".format(
"Adding" if not modify else "Rescaling", glyphSetLength, setName))
currentSourceFontGlyph = -1 # initialize for the exactEncoding case
width_warning = False
@ -1241,20 +1244,26 @@ class font_patcher:
if currentSourceFontGlyph in self.sourceFont:
self.sourceFont[currentSourceFontGlyph].removePosSub("*")
# This will destroy any content currently in currentSourceFontGlyph, so do it first
glyph_scale_data = self.get_glyph_scale(sym_glyph.encoding, scaleRules, symbolFont, currentSourceFontGlyph) if scaleRules is not None else None
dont_copy = sym_attr['params'].get('dont_copy')
# Select and copy symbol from its encoding point
# We need to do this select after the careful check, this way we don't
# reset our selection before starting the next loop
symbolFont.selection.select(sym_glyph.encoding)
symbolFont.copy()
if dont_copy:
# Just prepare scaling of existing glyphs
glyph_scale_data = self.get_glyph_scale(sym_glyph.encoding, scaleRules, self.sourceFont, currentSourceFontGlyph) if scaleRules is not None else None
else:
# This will destroy any content currently in currentSourceFontGlyph, so do it first
glyph_scale_data = self.get_glyph_scale(sym_glyph.encoding, scaleRules, symbolFont, currentSourceFontGlyph) if scaleRules is not None else None
# Paste it
self.sourceFont.selection.select(currentSourceFontGlyph)
self.sourceFont.paste()
self.sourceFont[currentSourceFontGlyph].glyphname = sym_glyph.glyphname
self.sourceFont[currentSourceFontGlyph].manualHints = True # No autohints for symbols
# Select and copy symbol from its encoding point
# We need to do this select after the careful check, this way we don't
# reset our selection before starting the next loop
symbolFont.selection.select(sym_glyph.encoding)
symbolFont.copy()
# Paste it
self.sourceFont.selection.select(currentSourceFontGlyph)
self.sourceFont.paste()
self.sourceFont[currentSourceFontGlyph].glyphname = sym_glyph.glyphname
self.sourceFont[currentSourceFontGlyph].manualHints = True # No autohints for symbols
# Prepare symbol glyph dimensions
sym_dim = get_glyph_dimensions(self.sourceFont[currentSourceFontGlyph])
@ -1551,7 +1560,7 @@ def get_multiglyph_boundingBox(glyphs, destGlyph = None):
if glyph is None:
# Glyph has been in defining range but is not in the actual font
continue
if destGlyph:
if destGlyph and glyph.font != destGlyph.font:
glyph.font.selection.select(glyph)
glyph.font.copy()
destGlyph.font.selection.select(destGlyph)