Wednesday Contest Solution (pt. 1)

Since I had a whopping zero takers for my contest, I'm thinking it won't be a repeat event. Here's my solution for the first portion of the challenge:

<cfif NOT isDefined("attributes")>
  <cfset attributes = structNew() />
  <cfset structAppend(attributes, form, false) />
  <cfset structAppend(attributes, url, false) />
</cfif>
<cfparam name="attributes.width" default="100" />
<cfparam name="attributes.height" default="100" />
<cfparam name="attributes.backgroundColor" default="f7f7f7" />
<cfparam name="attributes.borderColor" default="cccccc" />
<cfparam name="attributes.textColor" default="990000" />
<cfparam name="attributes.text" default="Hello!" />

<cfset image = imageNew("", attributes.width - 2, attributes.height - 2, "rgb", attributes.backgroundColor) />
<cfset imageAddBorder(image, 1, attributes.borderColor) />

<cfset imageSetAntialiasing(image, "on") />
<cfset imageSetDrawingColor(image, attributes.textColor) />

<cfset graphics = imageGetBufferedImage(image).getGraphics() />

<cfset bounds = graphics.getFontMetrics().getStringBounds(attributes.text, graphics) />
<cfset imageDrawText(
  image,
  attributes.text,
  (attributes.width - bounds.getWidth()) / 2,
  (attributes.height + bounds.getHeight()) / 2
) />

<cfimage action="writeToBrowser"
  source="#image#" />

I'm withholding the extra credit solution until tomorrow, in case anyone wants to take a crack at it.

4 responses to “Wednesday Contest Solution (pt. 1)”

  1. Ben Nadel

    Sorry I missed this one (this week has been horribly busy at work). I might have some time to give it a go tonight (the extra credit)… let me see what I can make happen.

  2. Ben Nadel

    I couldn't solve this problem without cheating :( I didn't know about this whole getFontMetrics() thing in the underlying buffered image. I would not have been able to figure out how to center the text.

    I guess I really need to learn up on my Java AWT before I can really tackle tricky image stuff.

  3. Ben Nadel

    Sorry, I don't want to bombard you with comments, but I've had a few minutes to play around with the FontMetrics() stuff you have in your example – awesome stuff! Being able to grab the font bounding box is giving me some great ideas. Thanks.

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