Flex :: Prevent Dragging Outside The Parent Container In Flash?
Nov 22, 2010
I have a canvas onto which I draw shapes like rectangle etc. When I move the shape using my custom mouse down/mouse move handler, the shape can go outside the parent bounds.
I am checking if the child is outside the parent's bound to snap it back:
var bounds:Rectangle = this.getBounds(this.parent);
var p:Point;
if (bounds.x <0) {
[Code]...
The snapInside method gets called when I go outside the left or top boundary. But when the child is dragged outside the right or bottom boundary, I find Flex/Flash runtime automatically expands the parent's height and width. So say the parent size was initially 800x600, if child Y bounds exceed 800 by say 20 pixel, I find the this.parent.height automatically resized by flex to 820!!
How do I prevent the parent from resizing when child goes outside the original bounds of the parent ?
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Jul 2, 2011
In a Flex Mobile project I have a simple itemRenderer where I'm trying to create an "bubble" texting effect, similar to ichat or iphone (just so you get what im going for). But if the text is longer than the screen it runs off, rather than just going down a line.
If I set Group thats holding the rectangle(to create the bubble effect) and the label to 100% it works and keeps it from exceeding the list containers bounds, BUT the group is always at 100% and looks bad, I'm trying to keep the "bubble" JUST AROUND the text.
Anyway so, at the top of my itemRenderer I tried specifying:
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" width="100%" height="100%">
And here's my layout I figured since msg_container has a width of 100% I was hoping bubble_lable_group would just not exceed that but...it doesnt...it just runs off. I tried setting a max width but that does not allow you to input percents. And just to say it 1 more time. I know if i set bubble_lable_group width to 100% it works, and keeps it from going off the edge, but then the rectangle "bubble" stretches all the way across and just looks bad.
<s:VGroup id="main_container" horizontalAlign="left" paddingBottom="10" paddingTop="10"
verticalAlign="top" width="100%">
[Code]....
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Oct 19, 2009
I was wondering, if I have two list boxes, and I want to drag and drop between both of them, how do I prevent the user from dragging onto the same list (thus duplicating the item? I cannot have a situation where that is the case
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Mar 22, 2010
how would you prevent dragging for some items of your List or DataGrid?
Let's say I had a list with two items: 'Tom' and 'Jerry'. Only 'Tom' should be dragable, not 'Jerry'.
Ideally I had a 'isDragEnabled(item:Object):Boolean' function, which is being queried by the drag source.
My difficulties start with the fact that the 'dragStart' event handler has a null value for the dragSource, so right from the start I find it hard to find out what the drag-start is about..
PS There have been a few discussions on preventing or canceling a drop, but I haven't seen much about preventing the drag start, hence this question.
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Feb 23, 2010
I'd love to be able to prevent dragging of a HDividedBox's divider based on a condition. for example:
[Code]...
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Dec 21, 2011
When you drag the edge of container with mouse ,how to implement changing the size of container?
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May 12, 2010
I am doing some pre-production on a project that requires drawing on a 3d canvas, which I think flash is the best way to go. But there is a chance down the line that this client might want the site to show up on the ipad, iphone or other mobile devices that don't support flash.
So I was playing with the idea of doing everything in html and javascript except for the actual drawing/3D area. Almost like using flash as the element. I think html5 is too premature to start using this, but might be beneficial down the line. Chances are I will just go the entire flash route, but I thought it would be interesting to try. question is pretty top level. 1) how hard would it be to drag an object from an html page using javascript, and dropping it into the flashplayer. And then manipulating it from there.
Are there any examples out there that have tried to do this?
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Feb 11, 2010
Is there an easy way to make a parent container (eg Group) resize when it's children resize?
Below is a little example app. When I put the 200x200 'food' in the 'stomach' the stomach & it's containing 100x100 'body' should resize to contain the food.
[URL]
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[Code]....
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May 13, 2011
I have code like the following:
<s:VGroup gap="10" id="group" height="100%">
<s:Label text="This is page 2" />
<s:Button content="Resize Canvas" click="resize(event);"/>
<mx:Canvas id="photoCanvas" color="#567898" backgroundColor="#125567">
</mx:Canvas>
</s:VGroup>
I don't understand why the following does not work:
Pushing the Button resizes the photoCanvas's height (gets taller or smaller). Since the photoCanvas control is a child element of the VGroup shouldn't the container update itself to the new height? The Vgroup has ALWAYS the same height, no matter what the (total) height of the children is! I would like the VGroup to adjust itself and get a height value equal to the sum of its children heights. Is this not possible??
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Mar 19, 2011
I have an AS3 movieclip with a button. Both the movieclip and button needs a click event but when I click the button it also fires the parent movieclip's event handler.
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Jul 5, 2011
is it possible to retrieve all children of a certain type from a parent in actionscript 3? i only see getChildAt,getChildByName, is there a getchild of a certain type like get all childs of object type:Food?
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May 25, 2011
I've got a grid of images which are added to a imagecontainer(Sprite) in a class. When I click a button, the imagecontainer gets tweened(scaled) to 0.2 Now I would like to start dragging around the images. on mouse-down I add an enterFrame Event:
[Code]...
Unfortunately the image is never on the mouseposition but has a increasing/decreasing offset to the mouse pointer.The alternative, startDrag/stopDrag works perfectly, but I stll need the mouseX/mouseY for placing the image on a grid.I tried also parent.mouseX, no luck with that.Why is this happening? I thought mouseX/mouseY is always depending on the stage-dimension.
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Feb 17, 2010
On the stage I have a movieclip (Container, originally 200px width) and inside it with a progressbar movieclip (originally 700px width), scaled with Free Transform Tool to fit the parent container. The width of the container changes run-time while resizing the scene.
In ActionScript I have a function which should set the progress bar width according to a calculated percentage value:
private function updateProgress(event:TimerEvent):void
{
var barWidth:int = _container.width;
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}
My problem is that the progressBar even at full time (100%) is only at 1/4 of the parent container. I assume that it comes from the symbols original size.
Can I correct this programatically, or I must redesign it with the "designer"?
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Jun 25, 2009
I want to load an external swf movie into the parent one using for example the UILoader component and I want it to have access only to one object of the parent (the main swf movie). I tried sth like my_uiloader.content.parent = null, but obviously it doesn't work as the parent property is read-only.
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Mar 5, 2010
How can I make sure my textfield doesn't scale along with it's parent movieclip?This textfield is created dynamically inside of a randomly scaled mc. I want to prevent the child txtfield from scaling along with it's parent.
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Jun 12, 2011
I'm using the loadMovie command to load an external swf (a brief tutorial) into the parent swf. The parent swf is an interactive exercise with several answer buttons. The user can click a button to open and close the turorial on top of the exercise.k the answer buttons in the parent swf below and hear the correct and incorrect sound cues. When they close the tutorial, they see that answers have been given and there's a score when they didn't intentionally give any answers.
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Dec 23, 2009
I have a rectangular movieClip named 'container'. In this movieclip, a function generates some number of squares.My problem is that; for example, if I generate 12x12 squares with each width/height of 40; it resizes the container to width/height of 480. If I set the width and the height of the container movieClip to a lower value; then the squares become smaller.I have been struggling for some time on this problem. I tried setting the ScaleMode of container and squares to various values but it did not work.How can I overcome this illogical (for me at least) problem? How can I prevent children from resizing their parent OR how can i prevent parent downsizing the children?
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Oct 11, 2010
I would like to know the way to prevent a child swf from referencing its parent swf stage width/height?
for example, i created a child swf that loads image and center it on it's stage. As a stand alone its fine but i loaded it with parent swf, it centers on the parent swf instead.
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Jan 11, 2008
I have 3 SWFs.
X.SWF - Parent application. Contains an empty movie clip for loading external swfs using loadClip() method.
B.SWF - Has some text and pics. Gets loaded into the empty movieclip on X.SWF. Also has a button saying 'Load A.SWF'.
A.SWF - Similar to B.SWF with a button saying 'Load B.SWF'.
When I start the main application (X.SWF) and load B.SWF into it all is fine. But would like to click on the 'Load A.SWF' button on B.SWF and load A.SWF into X.SWF. And visa-versa. The problem is I'm not able to refer to the parent container (X) from these child (A and B) SWFs.
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Sep 16, 2008
Late night dumb question time:I have an SWF named "gallery.swf" that loads into an empty clip called "holder_mc" in the parent movie. How do I call a function from gallery.swf that replaces gallery.swf with a file called "purchase.swf" in holder_mc? The function I'm using looks like this:
Code:
function ProceedToCart():Void {
_root.mcLoader.loadClip("purchase.swf",_root.holder_mc);
[code].....
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May 14, 2009
i'm a designer trying to step up my flash skills and have a scripting problem that's causing me trouble. essentially i have a child swf loaded into a container in a parent swf and want the child to be able to instruct the parent. to explain in full, the child contains an flv with bespoke video player components. it's container sits in one frame of the parent. when the flv finishes playing, i need the parent swf to move onto another frame.
as it's a controllable flv, it isnt possible to predict the exact length of time the child will need to be present, so it literally needs to tell the parent it's finished playing at that very point.
[Code]...
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Jun 1, 2010
Embedded some characters using embed tag in flash CS3 (font.swf). 2 separate swf (a.swf,b.swf) loads the font.swf on runtime. These 2 swf are being called from a container (parent) swf. It looks find locally and not time consuming to load. But when I view it from a server, computer lags after a while....
(all file sizes are relatively small.around 160kb)
What needs to be done in order to prevent computer from lagging? Is it better to load font.swf not in separate swf but directly in container(parent).swf?
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Apr 7, 2011
I have spent nearly a day on this now, searching everywhere, but never found anything. This is my desperate attempt to get my problem solved. I have a container (ContentHolder extends Sprite), which holds another container (Content extends Sprite) which has a TLFTextfield in it.
Now when I resize the ContentHolder, its children get resized too. I have overridden set width and set height in the Content class, because I need the Content to resize differently than just scale. I want the TLFTextfield width to adjust to ContentHolder width, while maintaining font size. So ideally the TLFTextfield would set different line breaks, according to the width of ContentHolder.
I really have no idea how this can be achieved. One solution may be to create a new TLFTextfield instance with the updated height and width values, but that could look messy when drag-resizing the ContentHolder..
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Sep 21, 2011
I have a loop that goes through data from a book and displays it. The book is not consistent in it's layout so I am trying to display it in two different ways. First way(works fine) is to load the text from that section in to a panel and display it. The second way is to create a new panel (panel creates fine) and then add collapsable panels(nested) to that panel. Here is the code from the else loop.
else if (newPanel == false){
// simpleData is just for the title bar of the new panel
// otherwise the panel has no content
[Code]....
The error I get is: ReferenceError: Error #1069: Property panel4.4 not found on components.readTest and there is no default value.
I have tried setting the "name" property instead of the "id" property.
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Sep 28, 2010
how I can target the parent container of whichever object receives an event?
Code:
Parent1.btnA.addEventListener(MouseEvent.CLICK, doSomething);
Parent2.btnA.addEventListener(MouseEvent.CLICK, doSomething);
Parent3.btnA.addEventListener(MouseEvent.CLICK, doSomething);
[Code].....
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Dec 23, 2010
I have a viewstack container w/ 3 views: red, black, and blue. How can I completely hide the black & not include it?
[Code]...
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Jan 13, 2012
I am creating an flex Air project,so mxml file will run. I have circles in one Big circle at one side and will be same on other side.
Now how to drag any circle from any Big circle to other side. Or it could be like any two container having circles, then how to drag and drop circle?
For one circle i am able to do drag and drop.But I want one Big circle on left hand side and one big circle on right hand side .And small circles with class names will be in these big circles.Now i want to drag and drop those small circles in big circles.Big cicles should not move. Even i have tried this code in actionscript
package
{
import flash.display.Sprite;
import flash.events.MouseEvent;
[Code].....
But in this i want big circles should not move and small circles should only be dragged.
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May 16, 2011
I'm finding that in flash (10.x at least) and ie (7, 8, 9) that if I try to load an image url that contains escaped utf-8 characters (p%C3%83%C2%A5) that the characters get decoded before it makes the url request, even if I double or triple encode them. Is there any way to prevent this so the url (with escapes) the way I want it is actually what is requested?
The problem its causing is we give a http status of 301 on utf-8 decoded url requests to the encoded url which flash then tries to request (but ie decodes it again) and I get stuck in an infinite loop because of the 301 + ie auto-decoding.
EDIT, adding code sample:
var url:URLRequest = new URLRequest('http://mydomain.com/p%C3%A5.jpg');
var loader:Loader = new Loader();
loader.load(url);
Now I want the request to go over the line as [URL] (and it does in other browsers), but in IE it goes over the line as [URL]
EDIT: replacing % with %25 (double encoding the %) but that didn't work, it just caused this request to go over the wire: [URL]
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Oct 11, 2010
How do I prevent a user from dropping an item outsider a folder? My dataProvider is only 1-level deep.It seems that with a DragEvent handler or DragDrop handler I can find the data of the item I'm dragging, but not where I'm dropping ( so I can prevent it ).
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Jan 27, 2010
I'm currently working on a custom component which extends Canvas (let's call it SuperCanvas) ; it's basically a container that let you zoom & pan its contents. It would be too long to explain why, but I can't use scrollRect, so I was forced to declare a Canvas object (called innerCanvas)... inside my SuperCanvas (I know, not very nice =/) I would like to know if there's a proper way to "redirect" the creation of my component's children in this canvas.
[Code]...
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