Resize string to specific width

[cookiedragon234]

I wrote the following code to resize a string until it fits within the specified width:

	public int drawStringClamped(String text, float x, float y, float width, int color)
	{
		int original = fontRenderer.FONT_HEIGHT;
		
		while (getStringWidth(text) > width && fontRenderer.FONT_HEIGHT > 0)
		{
			fontRenderer.FONT_HEIGHT--;
		}
		
		int out = drawString(text, x, y, color);
		
		fontRenderer.FONT_HEIGHT = original;
		
		return out;
	}

This however does not work as the `getStringWidth` function does not take into account the string height! Is there an alternative way to do this? Or potentially to get the string width while taking into account its height. Thanks.

 

[DavidM]

  On 12/27/2019 at 11:57 PM, cookiedragon234 said:

This however does not work as the `getStringWidth` function does not take into account the string height!

Expand  

Well... The method is called "getStringWidth".

 

You can get the string height with FontRenderer::FONT_HEIGHT.

[cookiedragon234]

@DavidM the width of a string will change based on its height, they are proportional

[DavidM]

  On 12/28/2019 at 12:11 AM, cookiedragon234 said:

@DavidM the width of a string will change based on its height, they are proportional

Expand  

I misunderstood your question. Sorry.

 

Since each character's width is obtained through IGlyph without regards to the font height of the FontRenderer, there is no built-in way to do this. You can however get the proportion of the altered height to the original height and apply that to the original string width. Basically something like:

newWidth = MathHelper.ceil((double) originalWidth / originalHeight * newHeight);

 

Edited December 28, 2019 by DavidM

[cookiedragon234]

Uh I dont completely get what that code is doing, but it didn't work anyway. I am experimenting with achieving this using GlScaled but running into some small problems. If anyone else has managed to do this with glscaled I would appreciate an example. I will post my code if I finish it and get it working.