Get information on the device's color palette programmatically

Is there a way to get the (size of) the device's color palette programmatically?
Or to check if a color (like 0x000055) is supported by the device?

I'm looking for a simple solution (one or two lines of code). Without jungles, extra resource files etc.

Former Member over 8 years ago

There isn't a good way to do this, but I found a bad way.

When you initialize a BufferedBitmap object with a palette, the colors in the provided palette are mapped to the nearest color available on that device.

I did not try to compile this, so there could be errors:

function nearestColor(color) {
    var bitmap = new BufferedBitmap({:width=>1, :height=>1, :palette=>});
    return bitmap.getPalette()[0];
}

function isColorSupported(color) {
    return (color == nearestColor(color));
}
[/code]

jim_m_58 over 8 years ago

For CIQ2 and CIQ3 watches, aren't they all 64 color? Maybe just a check monkeyVersion?

Imim not sure about the 735, but if it's not, something like

if CIQ>=2 and round..

sabeard over 8 years ago

The 735XT only supports 16 colors, and it is also the only CIQ2 semi-round device.

If I read the UI guide right all the rest are 64+ colors.
https://developer.garmin.com/connect-iq/user-experience-guide/appendices/

So to also include the VAHR you may want to check for

if CIQ>=2 and !semi-round

jim_m_58 over 8 years ago

That's right. I forgot about the vahr..

r.485 over 8 years ago

if CIQ>=2 and !semi-round

This is indeed what I've used so far. But it excludes the Vivoactive 1 and the Epix, which are CIQ1 and have 64 colors.

Brian's solution is quite creative :-)
I'll give it a try.

jim_m_58 over 8 years ago

BufferedBitmap isn't available until CIQ 2.3.x, and you can't use that on CIQ1 devices like the va and epix, so Brian's solution won't work for those either.

sabeard over 8 years ago

So how about this one. It should capture those two devices but knock out the 920xt which is the only rectangle 16 color device that I can tell.

If (CIQ>=2 and !semi-round) or (CIQ=1 and rectangle and touchscreen) then