IconEdit - LVGL Font and Symbol Creator with Text Optimized font
IconEdit is a pixel based font editor, it saves LVGL fonts as C-source files.
IconEdit can convert build-in Windows fonts to bitmap LVGL fonts.
IconEdit has a large included font library, that is included as LVGL fonts.
Multi language fonts:
C-Source format: LVGL B&W and 2,4,8 bpp Alpha level Anti-Alias.
Almost FREE C-Source code requires a license except for small test fonts. Save as BDF, PNG, JPG, BMP, and ICO for free.
Runs on Windows Vista, 7, 8, 8.1, 10 or 11 with 1280x720 or bigger full color screen.
No installation on your PC: Just fetch and unpack the zip file and you are ready to go.
Fonts and Symbols as LVGL C-source code.
Language optimized Fonts.
Just add languages in the tick boxes, and you are ready to go.
More about International Fonts for multiple languages.
Text optimized Fonts.
Dont waste memory space on characters you will never need. Open a text catalog with C-Source text strings, and IconEdit will find all the texts and create a Unicode font with only the characters in the texts. This is essential for Chinese, Korean, and Japanese, where Unicode defines about 80000 characters, and you might only need a few hundreds. But even for short texts with large fonts it can save a lot of memory:
ROM Optimized Fonts and Symbols.
Import Fonts from the European Font Library, the Net, or Windows fonts
The European Font Library is included in compressed form the download zip file.
The net has many free font libraries such as Name.bdf, that can be opened directly
The net also has font outlines such as Name.ttf or Name.otf that should be installed in Windows first, and then imported the same way as Windows native fonts.
Import from the European Font Library
This librady contain predefined european fonts in the range from 4x6 to 255x255, the smallest only in B&W, the larger fonts higher than 16 often in 2bpp greytone too.
Smallest LVGL font 4x6:
Largest LVGL font 255x255:
Import from the Windows Font Library
First select a Windows font, Choose size and options for character look, and use one of the font creation tools such as Language and Region.
Using Windows fonts for greytone fonts smaller than 16 is not recomended, and only some of them have B&W support for fonts smaller than that.
The included European Font Library.
Extensive editing facilities for Fonts, Characters, and Symbols
The font edit toolbar:
The IconEdit font edit toolbar let you operate on the whole font or selected characters.
The character and symbol edit toolbar:
The IconEdit character and symbol edit toolbar let you draw and modify characters and symbols
Stretch or squeeze characters:
Create symbol groups such as battery indicators:
Convert colored logos to 8bpp greytone:
Image improvement by use of dither
Just because you only have 4 or even 2 bpp format doesnt mean you cant have pictures:
Original woodpecker in 24 bit-per-pixel color directly from a jpg picture, size 166,500 bytes converted to 2 bit-per-pixel grey with dithering, size 13,875 bytes:
Graphic drawing, Screen Previews, and Image conversion.
Asian Languages and High Plane Symbols
Indian text with combined ligatures
Many Asian languages are defined in Unicode as a combination of a basic character and one or more diacritics, that have to be combined to form a ligature before the text can be displayed correctly.
IconEdit can find these combinations and create a font with with the ligatures ready to use. As part of this process IconEdit also creates a modified text that you can use to display the combined characters directly.
High Plane 32 bit characters in 16 bit LVGL fonts
Unicode has support for almost all living languages in the 16 bit Unicode Basic Multilingual Plane 0, but dead languages, symbols, emoji, and rare Chinese ideograms are on the 32 bit Planes 1, 2, 3.
IconIdit can move a large number of these symbols and characters down to the 16 bit Private Area without loosing track of where they came from, and modify your input text to use with the relocated characters:
This could come in handy before you know it, for Simplified Chinese actually do have idograms on Plane 1 i.e. 32 bit CodePoint.
Support for Middle Eastern and South Asian fonts.
Arabic Presentation Characters and Right to Left scripts
Arabic Presentation Character Conversion
Arabic characters change look according to their place in a word, but it is written as a generic set of characters.
It is up to the display system to find the right shape in the Unicode area for Arabic Presentation Characters. The LVGL library can support this by adding #define LV_USE_ARABIC_PERSIAN_CHARS 1. Or IconEdit can help with that by creating new text strings where the generic characters are substituded with the presentation characters, so the new texts can be used directly.
Middle Eastern right to left alphabets
Many middle Eastern scripts are written from Right to Left, but the Unicode CodePoints are stored Left to Right. The LVGL library can support this by adding #define LV_USE_BIDI 1. Or IconEdit can identify texts with these scripts and generate new modified (usually mirred) texts for use on normal text displays.
