Empty math parameter in TexImage crashes

[carloshgsilva]

Problem:
If the parameter math get an empty string it crashes and make the others TeXImage don't load.

Code:

TexImage('');

Console:

D/AMK     (30054): onReady called; thread=Thread[JavaBridge,7,main]
D/AMK     (30054): Executing JavaScript: setNoWrap(false); setWidth('333.42857142857144px'); setColor('rgba(0,0,0,0.8666666666666667)'); setFontSize('24.0px'); render('', true);
D/AMK     (30054): Taking snapshot of [0.0, 0.0, 0.0, 0.0], scaled to [0, 0, 0, 0]
W/System.err(30054): java.lang.IllegalArgumentException: width and height must be > 0
W/System.err(30054): 	at android.graphics.Bitmap.createBitmap(Bitmap.java:1033)
W/System.err(30054): 	at android.graphics.Bitmap.createBitmap(Bitmap.java:1000)
W/System.err(30054): 	at android.graphics.Bitmap.createBitmap(Bitmap.java:950)
W/System.err(30054): 	at android.graphics.Bitmap.createBitmap(Bitmap.java:911)
W/System.err(30054): 	at com.madlonkay.flutter_tex_js.TexRenderer.takeSnapshot(TexRenderer.kt:149)
W/System.err(30054): 	at android.os.MessageQueue.nativePollOnce(Native Method)
W/System.err(30054): 	at android.os.MessageQueue.next(MessageQueue.java:326)
W/System.err(30054): 	at android.os.Looper.loop(Looper.java:160)
W/System.err(30054): 	at android.os.HandlerThread.run(HandlerThread.java:65)
I/chromium(30054): [INFO:CONSOLE(54)] "Uncaught Error: Java exception was raised during method invocation", source: file:///android_asset/ (54)

[amake]

Thanks. I've addressed this by rendering a Text('') if the input is empty. I chose this because I imagine it's desirable for the TexImage to take up approximately one text line of height even if it's empty, for consistency with surrounding elements.

If you have something else in mind, please let me know.

[amake]

I just released 0.1.5 with the fix. Please let know if there are any further issues.