This error occurs when a components gets drawn at a really small size and its
constraints compute out to be invalid. For example, if you have:
<s:Rect left=”2” right=”2” />
Once the component containing this rect is only 3 pixels wide, the width will
be computed as –1 since the left side will be at 2 and right side at 1 and
(right – left) = -1.
We don’t check for these conditions for performance reasons, and try to get the
minWidths to defend against it.
In the debugger, you should be able to double-click on the draw() in the stack
trace then examine properties to determine which rect it is.
On 12/6/11 9:36 AM, "Csomák Gábor" <[email protected]> wrote:
yes, but you trigger it, because the drawing and other visual functions are not
called instantly, but on every timer tick, and the timer's speed is 24
ticks/sec by default. so at every tick spark askes every component if the
visuals have changed, and if so, calls the redraw, and thats where it goes back
to your code..
On Tue, Dec 6, 2011 at 6:30 PM, Philip Smith <[email protected]> wrote:
>> it depends on your code.
The error is happening in the Spark code...
________________________________
To: [email protected]
From: [email protected]
Date: Tue, 6 Dec 2011 09:24:20 +0100
Subject: Re: [flexcoders] ArgumentError: Error #2004: One of the parameters is
invalid@Graphics/drawRect
it depends on your code.
error finding method: comment half of the block. If its still the same error,
the mistake will be in the other half. if it stopped the error, the error is in
the commented half. repeat for the half with the error. repeat until you found
the problem..
the error is because: if you draw something, change a label, etc.. so anything
with a visual change, it won't change immediately, but every 1/24 second (by
default) there is a timer event in Flex to apply that changes. So this error
comes when the program refreshes its view. (you know because of the last row of
the error: at flash.utils::Timer/tick(), and goes to flex sdk, not your
code..) you get very similar error, when you want to addChild() to an Element
for example..
hope I helped..
On Tue, Dec 6, 2011 at 2:24 AM, method_air <[email protected]> wrote:
This error started appearing, (the stack trace only has information relating
to flex sdk classes), anyone know how to fix it:
ArgumentError: Error #2004: One of the parameters is invalid.
at flash.display::Graphics/drawRect()
at
spark.primitives::Rect/draw()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\primitives\Rect.as:463]
at
spark.primitives.supportClasses::StrokedElement/updateDisplayList()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\primitives\supportClasses\StrokedElement.as:143]
at
spark.primitives.supportClasses::GraphicElement/http://www.adobe.com/2006/flex/mx/internal::doUpdateDisplayList
<http://www.adobe.com/2006/flex/mx/internal%3a%3adoUpdateDisplayList>
()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\primitives\supportClasses\GraphicElement.as:3958]
at
spark.primitives.supportClasses::GraphicElement/validateDisplayList()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\primitives\supportClasses\GraphicElement.as:3942]
at
spark.components::Group/validateDisplayList()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\Group.as:1087]
at
mx.managers::LayoutManager/validateDisplayList()[E:\dev\4.5.1\frameworks\projects\framework\src\mx\managers\LayoutManager.as:736]
at
mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.5.1\frameworks\projects\framework\src\mx\managers\LayoutManager.as:819]
at
mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.5.1\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1180]
at flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()
--
Alex Harui
Flex SDK Team
Adobe System, Inc.
http://blogs.adobe.com/aharui
