ActionScript, Flash, and Flex
Posts tagged bugs
AIR – Spark Button Repeat – Doesn’t Work
Jul 14th
Does anyone have experience with making the Spark Button component have autoRepeat work with AIR SDK 4 – Release – 4.0.0.14159
http://bugs.adobe.com/jira/browse/SDK-26965
Popularity: 6% [?]
Rasterize a Transformed Vector without Pixelation
Nov 10th
How does one rasterize a transformed vector capturing it’s new dimensions without pixelation?
Note: This follows my previous post Matrix Not Synchronized
Challenge: To render a bitmap of a transformed vector display object without pixelation. Specifically, after a mx.controls.Text is transformed, a bitmap snapshot is needed to be taken of the new object including the dimensions. I should note that the reason I am needing to get a bitmap snapshot is do to some shaping to the text.
Problem: However, doing so results in pixelation or resamples / renders the original dimensions of the transformed Text. It appears that flash.display.BitmapData::draw cannot get the new transformed display. In other words, when a flash.display.InteractiveObject is scaled on the x axis (or any axis) using transform.matrix, flash.display.BitmapData::draw cannot capture the new dimensions of the display object.
Example: http://sources.novelastudios.com/flash/matrix_adustments/MatriciesAndDimensions.html#
When the application creation complete is fired a snapshot is made. Change the matrix width (transform.matrix.a) and then re-render a snapshot / bitmap. Notice it retains the original, non-transformed values. Therefore and considering it is a rastered snapshot, when the snapshot/bitmap is scaled it becomes pixelated. Example version was 1.1.0.0 that should this problem. Version 1.2.0.0 is a workaround for now showing the workaround.
Workaround: I give credit to Guy Stables (needs a link) and Alex Harui (http://blogs.adobe.com/aharui). Essentially, the workaround is as follows:
- The InteractiveObject (we’ll call our target) needs to be placed in a container. In this example mx.controls.Text is placed inside a mx.core.UIComponent.
- The matrix transform is then applied to the target (eg mx.controls.Text)
- The dimensions of the container (eg the UIComponent that contains the Text/target) are then set to the target’s pixelBounds dimensions.
- Finally, take the snapshot bitmap of the container (the UIComponent).
For a demonstration see the latest version 1.2.0.0 of the example.
More Information:
Also found at http://forums.adobe.com/thread/521432
Popularity: 33% [?]
Matrix Not Synchronized
Nov 2nd
I’m short on time right now and just want to post this
Basically, matrix transforms do not update dimensions, rotations, and coordinates of UIComponents / InteractiveObjects.
Adjust the width and notice that when you switch over to the Pixel Tab the width never updates.
Don’t believe me, then do a demo yourself.
Create a UIComponent transform the matrix’s a value and then inspect the width. Notice that there is no change
Note: With UIComponents you can change the explicitWidth when the transform takes place to perform a workaround. However, that’s not the point.
@Adobe Include event dispatching for matrix transforms!
Popularity: 20% [?]
Serialize/Clone Objects (Bug with Required Constructor Params)
Oct 6th
My opinion is that the following is a big bug.
When serializing/cloning an object that has required constructor parameters, you receive an error telling you the arguments are incorrect. Note: the following is just an example using a “native” flash class. Really, you should never have to serialize or clone an Event, so please just see it as an example class as the type of class isn’t the point.
import flash.net.registerClassAlias;
import flash.events.Event;
import mx.utils.ObjectUtil;
flash.net.registerClassAlias("flash.events.Event",Event);
var event:Event = new Event(Event.CHANGE);
var eventClone:* = ObjectUtil.copy(event);
trace(eventClone is Event)
RESULT
ArgumentError: Error #1063: Argument count mismatch on flash.events::Event(). Expected 1, got 0.
at flash.utils::ByteArray/readObject()
at mx.utils::ObjectUtil$/copy()
at Untitled_fla::MainTimeline/frame1()
As noted by Nutrox, “All constructor parameters need a default value. You can’t pass values directly to an object’s constructor when it is restored from serialised data because Flash creates an instance of the object automatically before calling the object’s readExternal() method.”
What are your thoughts? I’m interested in striking a conversation about this.
Popularity: 43% [?]
DisplayObject.scrollRect dimension reporting workaround
Jun 27th
I came across a bug where when you set the scrollRect of a DisplayObject and get a dimension, within the first few mil/nano-seconds it reports the correct width and height. However, after that the reported width and height is the scrollRect‘s width and height. This to me is a bug considering you can not request the object to tell you it’s full dimensions any longer.
Take a look at http://www.kirupa.com/forum/archive/index.php/t-256884.html and here is the solution http://usecake.com/lab/find-the-height-and-width-of-a-sprite-with-a-scrollrect.html
Popularity: 37% [?]
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