Flex :: Undo, Redo Functionality With Image Manipulation?
Jan 21, 2010
Loads an image to an Image component Transform the image (rotate, flip) with the Matrix Apply filter(s)
Now I am thinking about to create some undo redo functionality. Each time I do a transformation / add an filter I want to be able to go back to the previous image (before the action).
My thought is to have an Array and add the previous bitmap to the stack. But I see that there are some differences between transformations and filters I have also seen the ImageSnapshot and whot i can do and it looks like what I am after.
Im wondering how to implement undo redo functionality with a TextArea. I already have an undoredo framework functionality working, now I have two questions.When do I start/stop a new undo/redo command, eg when a user hits undo, how far back do I go. How do I implement this(1.) in a normal TextAreay thinking:I thinking that I should create a new undo command, when anything but a alphanumber+space is hit. To do this I would use the keyDown event and test if the key is alpha num if it is not I will reset the command.
i've been unsuccessfully attempting to create my own undo/redo classes that work well with any type of possible undo and redo commands.
for example, my simple class works perfectly with undoing/redoing x and y positions of display objects or undoing/redoing values of sliders, etc., but things get dicey when i try to tailor my classes to also work with things like adding and removing items to a list.
is there any well known and well documented solution for general undoing and redoing for actionscript (without Flex)?
I am going to create an application in that i have to implement an Undo and Redo feature. In the application there will be multiple objects located on stage and user can customize the position of the objects. But when user clicks on Undo the object go back to their default position and after clicking on redo object will move on the new position. So my question is how can I apply these feature in my application? Is there any library or any third party classes?
i'm making a drawing tool in flash with the ability to draw shapes, put text, etc. i need to incorporate undo/redo facility in it. is there some efficient way to go about it? or will i have to go the hard way, remembering in some way the last three actions performed by the user in an array or stack or something??
I am in this situation where i need to select a Flex's type(image placeholder/image type/image container) for passing parameters in/out of different functions in an image editor. And, those different functions are either another image-manipulation/processing function or a function that display/render the image in a display component.
For example, I will ask other teammates to create a function that processes an image (possibly piped from other image processing functions, too), (let it be fancy or basic image processing from changing colors, to scaling, to segmentation etc.Which of the two would you pick for passing in/out different functions? Display Object or bitmapData,and why(reusability, performance, standard practice etc)?
How can I make it so that the RichTextEditor from Flex can add images? I'm not talking about the upload process, but rather then way I can insert images into the textarea.
this one seems to be too tough for me. Usually i at least know in which direction i have to search for but this one is beyond my imagination.I need to make kind of dress up shop where you can add clothes to a model to see how the clothes look like. The hard part is, it should be possible to tuck pants into boots or put one apparel over another. And since the bottom apparel can be bigger than the top one i have to cut out the pixels around the top apparel.If you rollover the pants on the left you see that the image is actually bigger than the boots but is cut and curved "into the boots"And if you rollover over the "Mango top" you see that it is also much bigger than the top jacket.
tstanding but also still keep the parts that are going out of the sleeves and on the bottom.All data and images are loaded on demand of course and there are no specified masks or tricks for that, so looks like everything is calculated and processed ynamically.Defining special masks for each item is not an option either because there might be hundreds of apparels and thousands of combinations.So do anyone have some ideas how to approach this ? How the heck do they do this ? How to detect the areas where one apparel goes into another and cut out the rest ?
I'm building a Flash app (as3) that allows users to embed photos of themselves in a scene--think carnival-style cutouts (or faceInHole). I like the interface design for image manipulation at FaceInHole, which puts anchor points and a skeleton around the boundaries of the uploaded image and lets users drag the image to change its position, resize it by dragging corners, rotate it, etc, similar to the free transform tool in photoshop.
Originally, I was planning on building the application with an interface that just used buttons in a control console to manipulate things like position, rotation, etc, but I find the FaceInHole approach more intuitive.I have two questions:
a) Will most users find the in-place skeletal manipulation tool more convenient than the button-based tool, or do I just find it easier because I'm used to things like Flash and Photoshop that use a similar interface?
b) Are you aware of any good open source classes / libraries that contain a solid implementation of the photoshop-style free-transform image manipulation interface?
Everything works as expected, but the undo buffer is reset / stops at the point that a tab was inserted.Is there a way to ensure that the undo buffer remains in tact even with the tab inserted
I have some binary data and I can't store it in a string, as such I'm using a ByteArray. The problem is that I need some functionality that comes with strings, to be specific I need the charAt, substr, indexOf and substring methods.
I want to separate the data from the PHP call to Different CollectionArrays So that I can use the data for a bar-graph;
I created a static version of the bar-graph and separated the Collection array manually I don't want this done manually I need to do it dynamically. So what I am trying to understand is where to put the event-listener how to add to a collectionArray then once the collection array(s) are built. use that information to build the bar graphs...
is there any library for Action Script 3 that allows my AIR application to function like a version control (svn or cvs or something similar) client?
I just want to use the download functionality. my app relies on some folder and file structure that may change through updates and it'd be great if i could simply manage a subversion repository online and the application would automatically sync it's filestructure to this repository.
I have downloaded Eclipse - Helios and it is working perfectly. I am having a little trouble understanding the Flex functionality with Eclipse. Is it possible to download a Flex plugin or whatever it is called free of charge to develop and compile mxml and actionscipt files without having to purchase FlexBuilder 3 or 4 at a price of $600. I am under the impression that Eclipse is a free download and and Flexsdk is a free download. Can't they be put together into one tool? I cant afford the $600.
I want to use RTMP based HTTP DVR functionality and HLS based IOS functionality, So I need to know how to MPP from my existing DVR app to the livepkgr app so that the stream being recorded at the DVR app can be used by the Flash and Stream MPP over to livepkgr app and can be used by the IOS HLS.
Does anyone know of a way to keep a menu open after clicking one of its menu items? I have a custom menu (extended the menu object) it contains a bunch of check type menu items, the requirement I am trying to fulfill is to allow the user to click multiple menu items without the menu closing, and then have the menu close when it loses focus, is this possible? If it is can someone please explain how it can be done (pref. with a small example).
[code]I want a tree in this structure, having line between the nodes, also, instead of Open and Close Folders, I have added my own graphic there with label. I did by extending TreeItemRenderer Class. Now, I if iam dragging and dropping a child node ex:label5, and try i drop it above label1 here, it is getting dropped there. i.e.,it is becoming like.[code]
I have a requirement like when I type 2 characters in email field if that email id exists in DB then I need to show remaining emails starting with those characters needs to display in dropdown list. Like Tags part in stackoverflow site, Is it possible in flex this functionality?
What's the best way to organize functionality modules in a flex project? I saw some people put all modules in one view stack ,and so the application interface is only load once, but when the application get larger, the whole compiled swf would be very big. If we put swfs in different pages, we pass request parameters through HTTP request, we lost the benefits from flex RPC services, slow loading, and we can't see any superior comparing to php,asp,jsp... what's the best practice to organize front end architecture?
I need to develop some mouse over functionality in text field.I could get the text on click functionality by having htmlText & TextEvent.Similarly, can i get the mouseover functionality in text field ?
I have an application in which when i click on a particular tab an HTTPService having id="service" is sent. This service calls a php file which in turn extracts data from a table and return as xml string to Flex. Flex then use DataGrid's dataprovider attribute to show the data in the dataGrid.Can i have a functionality of a timer which will call the HTTPService again and again after each 5 minutes?
The main purpose of mine is that for all the popup windows shown to end user all of them be closed when the escape key is pressed and all of them be closed upon click of the closebutton displayed at the titlebar.
But on the "escape key" press nothing is happening.
I have a for loop that I'm trying to display multiple popups with.
I seem to have multiple popups appearing on the screen, but after I'm done and close the top popup all the buttons on the others below it seem to stop functioning.
How can I make all the popups retain their functionality after the one before is closed?
The Flex tile containers will create and remove tiles as the data changes and seems good to use in areas where the content is dynamic. How to implement this functionality in HTML? I guess that we need to use some JS and/or CSS.
I'm looking to be able to run some actionscript 3 in the background to handle some audio and build a javascript front-end. I heard that you can simply compile actionscript 3 and run it using the flex framework
I have some text content in a scrollable container and I want the user to be able to scroll it having the nice effect of it moving according to the swipe velocity and to keep scrolling until the user taps it. (as many applications for mobile touch screens).
I am thinking to combine events to do it. I will catch the swipe to know the direction, have mouse in and out to see velocity and legth of the swipe, and then keep scrolling with a proportional velocity and length until the user taps the screen.
(I don´t want to do the work and find out it was really simple and I just didn{t knew how)
