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Thread: Problems loading jpgs dinamically

  1. #1
    Junior Member
    Join Date
    Apr 2002
    Posts
    7
    Hi, i'm new in this forum.

    I'm trying to load a jpg, and i use the next code:

    //ImageToLoad is a movieclip defined in design time
    //PhotoNode.firstChild.nodeValue is a string with the IMG URL
    //I'm using XML to get dinamically the image.
    ImageToLoad.loadMovie(PhotoNode.firstChild.nodeVal ue);
    ImageToLoad.onLoad = function () {
    trace ("onLoad called");
    };

    Well the image is loaded but i have 2 problems. The position that i set in design time has changed and if the image has a different size, it gets the new size too. I tried to fix it using code inside of OnLoad event changing the size and the old position but it isn't executed.

    btw, all is in the same timeline.

    Thanks for the help.

  2. #2
    Senior Member
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    293

    make sure the image is loaded...

    hi, you need to make sure the image is loaded before you set any x or y parameters
    Code:
    if(PhotoNode.firstChild.nodeValue.getBytesLoaded() == PhotoNode.firstChild.nodeValue.getBytesTotal() && PhotoNode.firstChild.nodeValue.getBytesTotal()>4)
    hope that helps.
    BenG

  3. #3
    Junior Member
    Join Date
    Apr 2002
    Posts
    7
    Like i said, i tried to use "OnLoad" event but it isn't executed.

    Next text is from Flash mx help:

    Description

    MovieClip.onLoad

    Event handler; invoked when the movie clip is instantiated and appears in the Timeline.

    You must define a function that executes when the event is invoked.

    Well,in my case, this don't work and it isn't invoked.

  4. #4
    Junior Member
    Join Date
    Apr 2002
    Posts
    7
    I have fixed it adding this:

    ImageToLoad.onEnterFrame = function () {
    trace ("onEnterFrame called");
    ImageToLoad._x=0;
    ImageToLoad._y=0;
    ImageToLoad._width=160;
    ImageToLoad._height=120;
    };

    but still i dont know why OnLoad event isnt invoked. I have tried using swf files instead of jpg files, and i have the same problem.

  5. #5
    Senior Member
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    sorry completely wrong end of stick!

    apologies. I never have any luck with the onLoad handler. But yes enterFrame seems to work perfectly - very strange.

  6. #6
    Junior Member
    Join Date
    Apr 2002
    Posts
    7

    Smile Thanks for your fast answers :)

    I think that it is a flash mx bug, but well, i'm not an actionscript expert

  7. #7
    President, save the
    New Zealand dollar foundation

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    don't use
    onEnterFrame()

    this will make the code loop.
    for code that you want to execute once a movieclip or variables have been fully loaded use
    onData()
    Code:
    ImageToLoad.loadMovie(PhotoNode.firstChild.nodeValue); 
    ImageToLoad.onData = function () { 
         with(this) {
              _x = 0;
              _y = 0;
              _width = 160;
              _height = 120;
    };
    the reason onLoad() wouldn't work, is that the onLoad event is fired when the movieclip is first made, ie as soon as ImageToLoad was created.
    I've found that even if you use
    this.createEmptyMovieClip("mc", 1);
    and have this
    this.mc.onLoad = function(){blah}
    onthe very next line, it still won't work.

  8. #8
    Junior Member
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    Apr 2002
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    The code doesn't loop because it is included in other event, in this case when the xml is fully loaded.

    Anyways, i tried your code and it doesn't run the OnData event (yes, i included the } missed in with).

  9. #9
    Senior Member
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    sonwah any ideas?

    ok i have/had a similar problem
    Code:
    onClipEvent(load){
    	function loadPics(amount){
    	for (i=1;i<=amount;i++){
    		this.createEmptyMovieClip("picHolder"+i,i);
    		if (i<10){
    			loadMovie("images/thumbs/DSCF000" + i +".jpg", "picHolder"+i);
    		}else{
    			loadMovie("images/thumbs/DSCF00" + i +".jpg", "picHolder"+i);
    		}
    		this["picHolder"+i]._alpha = 50;
    
    	}
    }
    loadPics(40);
    }
    onClipEvent(enterFrame){
    function movePics(movement){
    			xpos=0;
    		ypos=0;
    	for (i=1;i<=movement;i++){
    		if(this["picHolder"+i].getBytesLoaded() == this["picHolder"+i].getBytesTotal() && this["picHolder"+i].getBytesTotal()>4){
    			if(xpos<=250){
    				xpos = this["picHolder"+(i-1)]._x + this["picHolder"+(i-1)]._width + 5;
    			}
    }
    movePics(40);
    you get the idea, but the enterframe was the only one that would move each image?

  10. #10
    President, save the
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    so another solution:
    create another emptyMovieClip and use it's onEnterFrame to check the first:
    Code:
    	_root.createEmptyMovieClip("mc3", 1);
    	_root.createEmptyMovieClip("mc4", 2);
    	_root.mc3.loadMovie("rude.jpg"); 
    	_root.mc4.onEnterFrame = function () { 
    		trace("hello");
    		if ( _root.mc3.getBytesLoaded() == _root.mc3.getBytesTotal() ) {
    			_root.mc3._x = 22;
    			_root.mc3._y = 22;
    			_root.mc3._width = 160;
    			_root.mc3._height = 120;
                            this.removeMovieClip();
    		}
    	}
    that way you don't have an endless enterFrame loop occurring, because the "byteChecker" unloads itself when finished.

  11. #11
    Senior Member
    Join Date
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    Location
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    nice method...

    sorry about the delay:
    ok i tested your version which worked well. When i tried to implement it into my own code i get a trace of undefined - is this because the function doesn't recognise it?
    Code:
    amount=15;
    	for (i=1; i<=amount; i++) {
    		_root.createEmptyMovieClip("picHolder"+i, i);
    			loadMovie("images/thumbs/DSCF000"+i+".jpg", _root["picHolder"+i]);
    		}
    		_root["picHolder"+i]._alpha = 50;
    		_root.createEmptyMovieClip("loadtest"+i, amount+i);
    		_root["loadtest"+i].onEnterFrame = function() {
    			trace(_root["picHolder"+i]);
    I tried using eval() as well but with no luck.
    BenG

  12. #12
    Senior Member
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    solved it...

    sorry I was over complicating things
    Code:
    _root.createEmptyMovieClip("loadtest", (1+amount));
    _root.loadtest.onEnterFrame = function() {
    Thanks for your help.

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