: Calculate ideal font size so text can fit into cell I am a programmer and I have printing code that draws grid on the paper. Grid has 4 columns, and they have equal horizontal length. Height

@Mendez620

1 You Shall get size for any character of font,include all(upercase and ,-+'"&*#$ etc.), because all fonts has separations differents between characters.

<div id='size23' >dd</div>...<div id='size43' >didididi</div>.... <div id='size54' >dwdwdwdw</div>


and use javascript to get size with diferents combinations of characters

Width43 = getElementById('size43').offsetWidth; ....


2.-Every font has a proportion size height/width and Font metrics(custom aditinal proportion), you get proportion and font metric for that font. you can find more here use a image from zoom font text to get it.

3.-Use proportion number to get sizes for cell like as

proportion_number_font = 0.6

size_a = 0.10; size_b = 0.9 ...

total_a = 10, total_u = 5 , ......
Total_size = 34;


cell_width = total_size

cell_height = 0.6*34 ;

n = 2 // n is a proportional

addjust_cell_proportion = cell_width * n * proportion_number_font;

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@Barnes313

If the user is able to choose the printed paper size from a list before entering any text in the cells, then are you able to loop through an array of paper sizes and assign the table a font size depending on the paper? This would require a lot of testing to see which fonts suit which size of paper.

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@Merenda852

Generally a programming language will have a device context which will allow you to draw some example text and then measure it's width and height. For example in python, using wxPython GUI toolkit:

import wx
dc = wx.ScreenDC() #yourFont = wx.Font(10, wx.DEFAULT, wx.NORMAL, wx.NORMAL, True) #dc .SetFont(yourFont)
w,h = dc.GetTextExtent('X')


Regardless of which tools you are using the requirements are generally the same. You need to know your desired font size and desired cell padding:

cell_height = padding_top + text_height + padding_bottom


where units are generally pixels and text_height is a f(fontSize).

Generally it is not advisable to size fonts based on width unless you are willing to wrap the text. Use a '...' or something to cut short long text if you can't use a new line.

Don't write your own text wrapping code either. Again, in python:

import textwrap
a = "This sentence is less than 50 characters"
widthInChars = 20
lines = textwrap.wrap(a,widthInChars)


Now you have a relationship between font size, line spacing, padding, and cell size.

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