Custom text rendering

[Alexander Sviridenkov 356]

Just made this for fun. Canvas for HTML library which uses no system text/font API. Everything is processed inside library.

Fonts are loaded directly from TTF file/stream. Strings are converted into sequence of glyphs and transformed by various opentype features (kerming, glyph substitution/reposition, RTL, ligatures, etc.).

After that glyphs are converted to graphics paths and rendered using D2D FillGeometry method.

 

https://s9.gifyu.com/images/ownfont.gif

[mvanrijnen 123]

Look impressive ! 

Especially the zooming looks good.

 

Edited September 10, 2021 by mvanrijnen

[Guest]

Brilliant !

 

One question though,

Will you make that TTF parser a full editor (read and write) ?, because i genuinely think TTF edit component will have its fans, due that fact you can say to hell with image lists, also the rendering libs on all OS's are most fast in rendering fonts (highly optimized for speed), also fonts take less space than images.

 

So will such parser/editor be part in HCL, HEL, HOL or have its own package ?

[Alexander Sviridenkov 356]

Yes, font class can read and write TTF and WOFF, and also extract font of any format from PDF (CFF, PostScript, etc) and convert it to TTF (not simply wrap as CFF but convert outlines). Visual glyph editing can also be easily implemented using SVG.

Please check http://delphihtmlcomponents.com/FontBrowser.zip compiled demo, it shows all capabilities - read, write, extract, and contains visual glyph editor (simple HtPanel). Only around 100 lines of code.

BTW, font class can import glyphs from SVG path.

 

This is part of Office library.

 

Edited September 10, 2021 by Alexander Sviridenkov