Re: [Flashcoders] calling an "event" function with a parameter that is a number
Agreed!
2009/5/24 Steven Sacks
> The latter is cleaner and better, IMO.
>
> Write a function that your event handler calls. Then, you can call it from
> elsewhere and from your button click handler.
>
> function onThumbClick(event:MouseEvent):void
> {
>loadImage(event.target.name);
> }
> function loadImage(num:int):void
> {
> // loadImage(num);
>
> }
>
> Juan Pablo Califano wrote:
>
>> You have a couple of options:
>>
>> You could add an optional parameter to the function that handles the
>> click,
>> like this:
>>
>> function clickThumb(e:MouseEvent,index:int = 0):void{
>>
>> }
>>
>> Setting a default value for the index parameter allows the function to be
>> called without passing it. That's what will happen when a thumb is
>> clicked.
>>
>> When you want to call the function directly, you'd do:
>>
>> clickThumb(null,image_num + 1);
>>
>> In clickThumb, check whether the event object is null or not. If it's not,
>> do what you're currently doing. If it's null, use the index parameter as
>> the
>> index into my_images.
>>
>>
>> Another thing you could do is a bit of refactoring.
>>
>> Have the click handler only resolve the index and calling another function
>> to actually load the image.
>>
>> function clickThumb(e:MouseEvent):void {
>> loadImage(e.target.name);
>> }
>>
>> function loadImage(index:int):void {
>>if (my_full_images[index] == undefined){
>> var full_url = my_images[inde...@full;
>> ... etc ...
>> }
>>
>> Then, from your other button's handler, call loadImage(image_num + 1);
>>
>>
>> Cheers
>> Juan Pablo Califano
>>
>> 2009/5/23 Isaac Alves
>>
>> Hello!
>>> In my code there's a function that shows an image on the screen (or load
>>> the
>>> image and show a progress bar) that is called by clicking on a thumbnail,
>>> and uses a parameter [e.target.name] refering to the property "name" of
>>> the
>>> thumbnail clicked, which is an integer. The thumbnails are placed inside
>>> the
>>> cointaner_mc MovieClip.
>>>
>>> container_mc.addEventListener(MouseEvent.CLICK, clickThumb);
>>>
>>> function clickThumb(e:MouseEvent):void{
>>> if (my_full_images[e.target.name] == undefined){
>>> var full_url = my_images[e.target.nam...@full;
>>>
>>> etc...
>>>
>>> but I want to call this function by clicking on a button, which would
>>> need
>>> to pass another type of parameter, in this case, a variable which refers
>>> to
>>> the number of the image displayed on the screen plus one.
>>>
>>> I tried this:
>>>
>>> clickThumb(image_num + 1)
>>>
>>> But it doesn't work, I get the following error:
>>>
>>> 1067: Implicit coercion of a value of type Number to an unrelated type
>>> flash.events:MouseEvent.
>>>
>>> How could I call the function clickThumb and make it use "image_num + 1"
>>> instead of "e.target.name" ?
>>>
>>> Could I dispatch the event (MouseEvent.CLICK, clickThumb), passing this
>>> value "image_num + 1" ?
>>>
>>> Thanks in advance !!
>>> Isaac
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>>>
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Re: [Flashcoders] calling an "event" function with a parameter that is a number
The latter is cleaner and better, IMO.
Write a function that your event handler calls. Then, you can call it from
elsewhere and from your button click handler.
function onThumbClick(event:MouseEvent):void
{
loadImage(event.target.name);
}
function loadImage(num:int):void
{
// loadImage(num);
}
Juan Pablo Califano wrote:
You have a couple of options:
You could add an optional parameter to the function that handles the click,
like this:
function clickThumb(e:MouseEvent,index:int = 0):void{
}
Setting a default value for the index parameter allows the function to be
called without passing it. That's what will happen when a thumb is clicked.
When you want to call the function directly, you'd do:
clickThumb(null,image_num + 1);
In clickThumb, check whether the event object is null or not. If it's not,
do what you're currently doing. If it's null, use the index parameter as the
index into my_images.
Another thing you could do is a bit of refactoring.
Have the click handler only resolve the index and calling another function
to actually load the image.
function clickThumb(e:MouseEvent):void {
loadImage(e.target.name);
}
function loadImage(index:int):void {
if (my_full_images[index] == undefined){
var full_url = my_images[inde...@full;
... etc ...
}
Then, from your other button's handler, call loadImage(image_num + 1);
Cheers
Juan Pablo Califano
2009/5/23 Isaac Alves
Hello!
In my code there's a function that shows an image on the screen (or load
the
image and show a progress bar) that is called by clicking on a thumbnail,
and uses a parameter [e.target.name] refering to the property "name" of
the
thumbnail clicked, which is an integer. The thumbnails are placed inside
the
cointaner_mc MovieClip.
container_mc.addEventListener(MouseEvent.CLICK, clickThumb);
function clickThumb(e:MouseEvent):void{
if (my_full_images[e.target.name] == undefined){
var full_url = my_images[e.target.nam...@full;
etc...
but I want to call this function by clicking on a button, which would need
to pass another type of parameter, in this case, a variable which refers to
the number of the image displayed on the screen plus one.
I tried this:
clickThumb(image_num + 1)
But it doesn't work, I get the following error:
1067: Implicit coercion of a value of type Number to an unrelated type
flash.events:MouseEvent.
How could I call the function clickThumb and make it use "image_num + 1"
instead of "e.target.name" ?
Could I dispatch the event (MouseEvent.CLICK, clickThumb), passing this
value "image_num + 1" ?
Thanks in advance !!
Isaac
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Re: [Flashcoders] calling an "event" function with a parameter that is a number
You have a couple of options:
You could add an optional parameter to the function that handles the click,
like this:
function clickThumb(e:MouseEvent,index:int = 0):void{
}
Setting a default value for the index parameter allows the function to be
called without passing it. That's what will happen when a thumb is clicked.
When you want to call the function directly, you'd do:
clickThumb(null,image_num + 1);
In clickThumb, check whether the event object is null or not. If it's not,
do what you're currently doing. If it's null, use the index parameter as the
index into my_images.
Another thing you could do is a bit of refactoring.
Have the click handler only resolve the index and calling another function
to actually load the image.
function clickThumb(e:MouseEvent):void {
loadImage(e.target.name);
}
function loadImage(index:int):void {
if (my_full_images[index] == undefined){
var full_url = my_images[inde...@full;
... etc ...
}
Then, from your other button's handler, call loadImage(image_num + 1);
Cheers
Juan Pablo Califano
2009/5/23 Isaac Alves
> Hello!
> In my code there's a function that shows an image on the screen (or load
> the
> image and show a progress bar) that is called by clicking on a thumbnail,
> and uses a parameter [e.target.name] refering to the property "name" of
> the
> thumbnail clicked, which is an integer. The thumbnails are placed inside
> the
> cointaner_mc MovieClip.
>
> container_mc.addEventListener(MouseEvent.CLICK, clickThumb);
>
> function clickThumb(e:MouseEvent):void{
> if (my_full_images[e.target.name] == undefined){
> var full_url = my_images[e.target.nam...@full;
>
> etc...
>
> but I want to call this function by clicking on a button, which would need
> to pass another type of parameter, in this case, a variable which refers to
> the number of the image displayed on the screen plus one.
>
> I tried this:
>
> clickThumb(image_num + 1)
>
> But it doesn't work, I get the following error:
>
> 1067: Implicit coercion of a value of type Number to an unrelated type
> flash.events:MouseEvent.
>
> How could I call the function clickThumb and make it use "image_num + 1"
> instead of "e.target.name" ?
>
> Could I dispatch the event (MouseEvent.CLICK, clickThumb), passing this
> value "image_num + 1" ?
>
> Thanks in advance !!
> Isaac
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Re: [Flashcoders] calling an "event" function with a parameter that is a number
On Sun, May 24, 2009 at 2:00 AM, Isaac Alves wrote:
> 1067: Implicit coercion of a value of type Number to an unrelated type
> flash.events:MouseEvent.
>
> How could I call the function clickThumb and make it use "image_num + 1"
> instead of "e.target.name" ?
Do you have the value of image_num already? Why not change the
signature of the clickThumb function so it accepts the number instead
of the event object?
private function clickThumb(image_num:Number):void
{
...
}
Manish
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[Flashcoders] calling an "event" function with a parameter that is a number
Hello!
In my code there's a function that shows an image on the screen (or load the
image and show a progress bar) that is called by clicking on a thumbnail,
and uses a parameter [e.target.name] refering to the property "name" of the
thumbnail clicked, which is an integer. The thumbnails are placed inside the
cointaner_mc MovieClip.
container_mc.addEventListener(MouseEvent.CLICK, clickThumb);
function clickThumb(e:MouseEvent):void{
if (my_full_images[e.target.name] == undefined){
var full_url = my_images[e.target.nam...@full;
etc...
but I want to call this function by clicking on a button, which would need
to pass another type of parameter, in this case, a variable which refers to
the number of the image displayed on the screen plus one.
I tried this:
clickThumb(image_num + 1)
But it doesn't work, I get the following error:
1067: Implicit coercion of a value of type Number to an unrelated type
flash.events:MouseEvent.
How could I call the function clickThumb and make it use "image_num + 1"
instead of "e.target.name" ?
Could I dispatch the event (MouseEvent.CLICK, clickThumb), passing this
value "image_num + 1" ?
Thanks in advance !!
Isaac
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