Can't RETURN a CUSTOM FONT

I've built a little function to return the best font to fit within an available height. I include a custom font in my iteration through the available fonts.

I have two problems I can't seem to figure out. Maybe you know how to handle these?

//////////////////////////////

//! Load my custom font - sized between native fonts 3 and 4
dcb35 = WatchUi.loadResource(Rez.Fonts.dcb35);

Fonts[:F0] = 0; Fonts[:F1] = 1; Fonts[:F2] = 2; Fonts[:F3] = 3; Fonts[:F35] = dcb35; Fonts[:F4] = 4;

bestFont = selectBestFont(availableHeight);

///////////////////////////////

In almost any context I can refer to Fonts[:F35] everywhere I can refer to native fonts such as Fonts[:F2]. Such as dc.getFontHeight(), etc. Cool.

ISSUE #1: I'd love to iterate through the elements of my associate array, like a "for" or "while" loop. I don't think there is a way to do this.

ISSUE #2: Worse, in my little selectBestFont() function, I can return native fonts just fine (eg: Fonts[:F2]), but I get a "Stack Overflow Error" if I try to return Fonts[:F35] or even dcb35. Is there a way to return this custom Font, so that "bestFont" can then be used regardless of being a native or custom font?

Top Replies

jim_m_58 over 6 years ago in reply to DaveBrillhart +1

As a side point, don't worry about the FONT_SYSTEM_ fonts as they are the same as the normal FONT_ fonts. There was a plan a few years back to have CIQ fonts along with System fonts, but that never…

All Replies

jim_m_58 over 6 years ago

I'd do this a bit different. For one, I'd not use constantants,to help with readability. So,

var fonts=[Gfx.FONT_XTINY,Gfx.FONT_TINY, myFont,Gfx.FONT_SMALL]; //etc

//then to check for the font you want, do

for(var i=0;i<fonts.size();i++) {
  //if "best fit" return it
}

So, a simple loop to print out the height of all the fonts and look for an exact size:

function ftest(dc,sz) {
	for(var i=0;i<fonts.size();i++) {
	    var x=dc.getFontHeight(fonts[i]);
	    Sys.println(""+x);
	    if(x==sz) {return fonts[i];}
	}
	return null;
}

DaveBrillhart over 6 years ago in reply to jim_m_58

AWESOME. Thanks, as always!!

jim_m_58 over 6 years ago in reply to DaveBrillhart

You can do something like ordering "fonts" from largest to smallest and change the if to be

if(x<sz)

and it will find the largest font that fits in "sz"

DaveBrillhart over 6 years ago in reply to DaveBrillhart

Hey jim_m_58

Maybe I misunderstood your solution.

var dcb35 = WatchUi.loadResource(Rez.Fonts.dcb35);
var fonts = [Graphics.FONT_XTINY, dcb35, Graphics.FONT_TINY];

This works fine: dc.getFontHeight(fonts[0]);

This works fine: dc.getFontHeight(dcb35);

This generates a runtime error: dc.getFontHeight(fonts[1]);

Error: Unhandled Exception
Exception: UnexpectedTypeException: Expected Number/Resource, given null

jim_m_58 over 6 years ago in reply to DaveBrillhart

Not sure what's going on as I just tried it and thinks are working fine.

DaveBrillhart over 6 years ago in reply to jim_m_58

jim_m_58

Ok.... The Gfx.FONT values are integers. The "dcb35" value is a resource. Am I populating the fonts[] array incorrectly by mixing types? I didn't think that was allowable and is why "dcb35" is stored as "null". If that is allowed, then something else is going on and I'll noddle on it.

DaveBrillhart over 6 years ago in reply to DaveBrillhart

jim_m_58

duh - I initialized the Font array globally, which preceded the resource load. So dcb35 was null. anyway, working perfectly now. and using dc.getAscent, etc, my fonts are precisely positioned where I want them, dynamically.

jim_m_58 over 6 years ago in reply to DaveBrillhart

As a side point, don't worry about the FONT_SYSTEM_ fonts as they are the same as the normal FONT_ fonts. There was a plan a few years back to have CIQ fonts along with System fonts, but that never happened, and the FONT_SYSTEM versions that there for backward compatibility.