HTML and CSS Reference
In-Depth Information
To allow you to experiment, we've created a
<select>
element with all of the possible
modes in
listing 8.15
. The composition operations split the world into two segments:
• Destination, what's already drawn
• Source, the new stuff you're trying to draw
Add the code from the following listing (place it after the
<menu>
element you added in
Listing 8.15. index.html—
<select>
element for composition mode
Now, so that your application can respond to changes, you need to bind the
<select>
element to an event handler. The next listing has code that replaces your existing
draw()
function.
