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Saturday, July 28, 2007

JavaScript Blackboard

Does We really need only canvas element to draw something?

This is a basic blackboard example that uses my extend.js proposal and my setInterval and setTimeout with arguments fix for Internet Explorer.

Just draw something on Blackboard and have fun with JavaScript ;-)

6 comments:

  1. why does it erase right after I write something?

    There should be a separate erase feature.

    ReplyDelete
  2. That's what onDraw callback does, You can change them as You want.

    However, this is a test for setTimeout with extra arguments on Explorer too and my last extend prototype, not a full blackboard (but as You can see it's simple to create as You need) :-)

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  3. weird behaviour with click+drag outside the "board", requires extra click! anyway, your blog rocks :) congratulations

    ReplyDelete
  4. thank You. I know that behaviour but if I add any other check inside onmousemove event responsiveness goes slow :D

    I could try using a document event but I'm sure that checks for coords will be less responsiveness while onmouseout is called everytime a div is under the cursor.

    Any suggest about this problem?
    ( ok, ok, with Flash it's perfect and more simple ;) )

    ReplyDelete
  5. Could not find a suitable section so I written here, how to become a moderator for your forum, that need for this?

    ReplyDelete
  6. Sup i am new to this, I came upon this board I find It vastly accessible and it has helped me alot. I should be able to give something back & aid other users like it has helped me.

    Thanks, See You About.

    ReplyDelete