Source files for built in symbols

General discussion
1

Hi
I have been working with lvgl 5x and have it implimented in a number of different embedded projects.
I recently tried version 6, firstly running the simulator and running the demo’s, but none of the symbols that should be on the demo (LV_SYMBOL_FILE,…,LV_SYMBOL_GPS) are being displayed. I have looked for them in the source tree but they seem to be missing. On with lvgl v5x the symbols were in lv_font_symbol_10/20/30/40,
Am I missing something or is there another location that they need to be obtained from ?

2

The font system was heavily rewritten in v6.0 and the symbols are now part of the builtin fonts. Are you testing it with the builtin lv_font_roboto_xx series?

3

Yes, I am testing with code downloaded from the master branch on Github (V6.0). Which has lv_font_roboto_xx and lv_font_unscii_8, but no symbol font source files in the font directory int he source tree.

4

That’s because the symbols are now part of the Roboto fonts (like I said above). There are no separate source files for symbols anymore.

Are you trying this with one of the Roboto fonts or a different font?

5

Ok thanks understood,
I have the following in lv_conf.h

/* Robot fonts with bpp = 4
 * https://fonts.google.com/specimen/Roboto  */
#define LV_FONT_ROBOTO_12    1
#define LV_FONT_ROBOTO_16    1
#define LV_FONT_ROBOTO_22    1
#define LV_FONT_ROBOTO_28    1

/*Pixel perfect monospace font
 * http://pelulamu.net/unscii/ */
#define LV_FONT_UNSCII_8     1

/* Optionally declare your custom fonts here.
 * You can use these fonts as default font too
 * and they will be available globally. E.g.
 * #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1) \
 *                                LV_FONT_DECLARE(my_font_2)
 */
#define LV_FONT_CUSTOM_DECLARE

/*Always set a default font from the built-in fonts*/
#define LV_FONT_DEFAULT        &lv_font_roboto_16

Running the demo_create app on Visual Studio, text is shown on the button list items, but no symbols.

6

Do you have the latest master commit on the Visual Studio repository itself (d6596b9)? There was an issue with symbols there but it should be fixed now.

7

Hi Have just downloaded the latest VS repo as well as that for lvgl itself and am getting the same result after a complete new build.

8

Hi,
Thanks, I must have mixed up old and new repo’s. I started again with the latest repos and it is now working.

9

Great!

I must have mixed up old and new repo’s.

No problem; a simple git log usually reveals the mistake pretty quickly. (I’ve been there. :wink: )