packages = ["whl/ziafont-0.10a0-py3-none-any.whl"]
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Ziafont Font Inspection Demo
Font File
Text Preview
Text:
If you wish to make an apple pie from scratch, you must first invent the universe.
Font Size:
Glyphs
Glyph Info
Character:
Glyph ID:
One Glyph Here
Glyph Info Table
Glyph Substitutions
GSUB Feature:
Font Info
Font Info
import asyncio from pyscript import document, display from js import console, window, Uint8Array from io import BytesIO import ziafont class MyFont: ''' Class for accessing loaded font globally ''' def __init__(self): self.font = ziafont.Font() def change_font(self, fname): self.font = ziafont.Font(fname) myfont = MyFont() async def load_font(event=None): ''' Load the font file ''' files = event.target.files.to_py() file = files.item(0) if file is None: return filename = file.name content = Uint8Array.new(await file.arrayBuffer()) buf = BytesIO(bytearray(content)) with open(filename, 'wb') as f: f.write(buf.getbuffer()) myfont.change_font(filename) console.log(f'Loaded font {filename}') drawfont() fill_gsub() fill_features() update_text() def drawfont(*args): ''' Draw all glyphs and font info ''' display(ziafont.inspect.ShowGlyphs( myfont.font, size=28, columns=16, ), target='out_allglyphs', append=False) display(ziafont.inspect.DescribeFont(myfont.font), target='out_fontinfo', append=False) def drawglyph(*args): ''' Draw the glyph ''' glyph = myfont.font.glyph('A') display(glyph.test(), target='out_oneglyph', append=False) display(ziafont.inspect.DescribeGlyph(glyph), target='out_glyphinfo', append=False) def update_glyph_char(event=None): ''' Update the glyph by character ''' c = document.querySelector('#character').value[-1] document.querySelector('#character').value = c glyph = myfont.font.glyph(c) display(glyph.test(), target='out_oneglyph', append=False) display(ziafont.inspect.DescribeGlyph(glyph), target='out_glyphinfo', append=False) document.querySelector('#glyphid').value = glyph.index def update_glyph_id(event=None): ''' Update the glyph by ID ''' i = int(document.querySelector('#glyphid').value) glyph = myfont.font.glyph_fromid(i) display(glyph.test(), target='out_oneglyph', append=False) display(ziafont.inspect.DescribeGlyph(glyph), target='out_glyphinfo', append=False) if glyph.char: ch = list(glyph.char)[0] else: ch = '' document.querySelector('#character').value = ch def glyph_click(event=None): ''' A glyph was clicked ''' target = event.target while target.tagName != 'DIV': # Traverse up to find the div that was clicked target = target.parentNode gid = target.getAttribute('gid') if gid: #glyph = myfont.font.glyph_fromid(int(gid)) #display(glyph.test(), target='out_oneglyph', append=False) #display(ziafont.inspect.DescribeGlyph(glyph), target='out_glyphinfo', append=False) document.querySelector('#glyphid').value = int(gid) update_glyph_id() document.querySelector('#oneglyph').checked = True def fill_gsub(*args): ''' Fill GSUB feature dropdown ''' sel = document.querySelector('#feature') sel.length = 0 # Remove old options if not myfont.font.gsub: return features = list(myfont.font.gsub.features_available().keys()) for feat in features: option = document.createElement('option') option.value = feat option.text = feat sel.appendChild(option) def update_gsub(*args): ''' Update the GSUB table ''' if not myfont.font.gsub: return feat = document.querySelector('#feature').value display( ziafont.inspect.ShowFeature( feat, myfont.font, size=28 ), target='out_gsub', append=False ) def update_text(*args): text = document.querySelector('#textentry').value if not text: return size = int(document.querySelector('#textsize').value) features = document.querySelectorAll('.feature_check') if features: for feat in features: name = feat.name enabled = feat.checked myfont.font.features[name] = enabled display( myfont.font.text(text, size=size), target='out_text', append=False ) def fill_features(*args): parent = document.querySelector('#feature_chks') parent.innerHTML = '' features = myfont.font.features for name, checked in features.items(): div = document.createElement('div') chk = document.createElement('input') label = document.createElement('label') label.innerHTML = name chk.setAttribute('type', 'checkbox') if checked: chk.setAttribute('checked', checked) chk.setAttribute('value', name) chk.setAttribute('name', name) chk.setAttribute('class', 'feature_check') chk.setAttribute('py-click', 'update_text') div.appendChild(chk) div.appendChild(label) parent.appendChild(div) update_text() fill_features() fill_gsub() drawfont() drawglyph()