Method updateBounds

ij/src/main/java/ij/gui/TextRoi.java:496–530

Increases the size of bounding rectangle so it's large enough to hold the text.

()

	
	/** Increases the size of bounding rectangle so it's large enough to hold the text. */ 
	private void updateBounds() {
		if (firstChar )
			return;
		double lineHeight = 0;
		double mag = getMagnification();
		Font font = getScaledFont();
		Graphics g = getFontGraphics(font);
		Java2.setAntialiasedText(g, getAntiAlias());
		FontMetrics metrics = g.getFontMetrics(font);
		double fontHeight = metrics.getHeight()/mag;
		int i=0, nLines=0;
		Rectangle2D.Double b = getFloatBounds();
		double newWidth = 10;
		while (i<MAX_LINES && theText[i]!=null) {
			nLines++;
			double w = stringWidth(theText[i],metrics,g)/mag;
			if (w>newWidth)
				newWidth = w;
			i++;
		}
		newWidth += 2.0;
		b.width = newWidth;
		switch (justification) {
			case LEFT:
				break;
			case CENTER:
				b.x = this.oldX+this.oldWidth - newWidth/2.0;
				break;
			case RIGHT:
				b.x = this.oldX+this.oldWidth - newWidth;
				break;
		}
		b.height = nLines*fontHeight+2;
		setBounds(b);
	}
	
	private Graphics getFontGraphics(Font font) {
		if (fontGraphics==null) {