Auto-Resize FormattedString

Hugo Jourdan

Hi,

I'm looking for a solution to find the maximum value of FontSize that can be set to allow a FormattedString() to occupy all the available space in a TextBox.

For TextBox using a simple string, I have already coded this snippet that returns the maximum fontSize value:

def get_max_fontSize_textBox(font, text, box, align=None, fS=200):
	font(FONT)
	fontSize(fS)
	hyphenation(False)
	overflow = textOverflow(text, box, align)
	while overflow:
		font(FONT)
		fS -= 1
		fontSize(fS)
		overflow = textOverflow(text, box, align)
return fS

I would like to achieve exactly the same thing, but using FormattedString() instead of a str.

The problem is how to build again the FormattedString() in the while overflow loop.

frederik

why trying to find the pointSize? just scale everything with textWidth/boxWidth

Hugo Jourdan

I hadn't thought about this solution!
Thanks, @frederik!

newPage("A4Landscape")

box_w, box_h = width()-100, height()-100
box_x, box_y = 50, 50

txt = FormattedString()

txt.fontSize(90)
txt.align("center")
txt.append("LOOOOOOOOOOOOOOONG STRING\n"*30)

txt_w = textSize(txt)[0]
txt_h = textSize(txt)[1]

width_ratio = box_w/txt_w 
height_ratio = box_h/txt_h

sf = min(width_ratio , height_ratio, 1)

scale(sf)
textBox(txt, (box_x/sf, box_y/sf, box_w/sf, box_h/sf))