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  • Rendering MXML component only after actionscript is finished

    - by basicblock
    In my mxml file, I'm doing some calculations in the script tag, and binding them to a custom component. <fx:Script> <![CDATA[ [Bindable] public var calc1:Number; [Bindable] public var calc2:Number; private function init():void { calc1 = //calculation; calc2 = //calculation; } ]]> </fx:Script> <mycomp:Ball compfield1="{calc1}" compfield2="{calc2}"/> The problem is that the mxml component is being created before the actionscript is run. So when the component is created, it actually doesn't get calc1 and calc2 and it fails from that point. I know that binding happens after that, but the component and its functions have already started and have run with the null or 0 initial values. My solution was to create the component also in actionscript right after calc1 and calc2 have been created. This way I get to control precisely when it's created <fx:Script> <![CDATA[ [Bindable] public var calc1:Number; [Bindable] public var calc2:Number; private function init():void { calc1 = //calculation; calc2 = //calculation; var Ball:Ball = new Ball(calc1, calc2); } ]]> </fx:Script> but this is creating all kinds of other problems due to the way I've set up the component. Is there a way I can still use mxml to create the component, yet control that it the <myComp:Ball> gets created only after init() is run and calc1 calc2 evaluated?

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  • iphone voice recording problem?

    - by kumaryr
    iam developoing an iphon voice recording aplication , audio files are created in caf format when i play those files i wont get any voice only thing i ll get zzzzz, another thing size of the files are huge its upto 1.7 mb for 10 sec recording . plese suggest me the solution and some other format like mp3, if you have any sample code kindly post it . thanks

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  • Extracting a specific value from command-line output using powershell

    - by Andrew Shepherd
    I've just started learning PowerShell this morning, and I'm grappling with the basics. Here's the problem: I want to query subversion for the revision number of a repository, and then create a new directory with this revision number. The command svn_info outputs a number of label\value pairs, delimited by colons. For example Path: c# URL: file:///%5Copdy-doo/Archive%20(H)/Development/CodeRepositories/datmedia/Development/c%23 Repository UUID: b1d03fca-1949-a747-a1a0-046c2429f46a Revision: 58 Last Changed Rev: 58 Last Changed Date: 2011-01-12 11:36:12 +1000 (Wed, 12 Jan 2011) Here is my current code which solves the problem. Is there a way to do this with less code? I'm thinking that with the use of piping you could do this with one or two lines. I certainly shouldn't have to use a temporary file. $RepositoryRoot = "file:///%5Cdat-ftp/Archive%20(H)/Development/CodeRepositories/datmedia" $BuildBase="/Development/c%23" $RepositoryPath=$RepositoryRoot + $BuildBase # Outputing the info into a file svn info $RepositoryPath | Out-File -FilePath svn_info.txt $regex = [regex] '^Revision: (\d{1,4})' foreach($info_line in get-content "svn_info.txt") { $match = $regex.Match($info_line); if($match.Success) { $revisionNumber = $match.Groups[1]; break; } } "Revision number = " + $revisionNumber;

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  • Shift-reduce: when to stop reducing?

    - by Joey Adams
    I'm trying to learn about shift-reduce parsing. Suppose we have the following grammar, using recursive rules that enforce order of operations, inspired by the ANSI C Yacc grammar: S: A; P : NUMBER | '(' S ')' ; M : P | M '*' P | M '/' P ; A : M | A '+' M | A '-' M ; And we want to parse 1+2 using shift-reduce parsing. First, the 1 is shifted as a NUMBER. My question is, is it then reduced to P, then M, then A, then finally S? How does it know where to stop? Suppose it does reduce all the way to S, then shifts '+'. We'd now have a stack containing: S '+' If we shift '2', the reductions might be: S '+' NUMBER S '+' P S '+' M S '+' A S '+' S Now, on either side of the last line, S could be P, M, A, or NUMBER, and it would still be valid in the sense that any combination would be a correct representation of the text. How does the parser "know" to make it A '+' M So that it can reduce the whole expression to A, then S? In other words, how does it know to stop reducing before shifting the next token? Is this a key difficulty in LR parser generation?

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  • Can I use Google's Protocol buffers for processing LDAP requests in my LDAP server?

    - by Naga
    Hi, I need to process the incoming predefined ASN format data(coming from verity of clients that uses BER library to build it) in my application server. This is typically an LDAP server where every request will be in a predefined ASN format. Can i use Google's protocol buffers to process the requests in the server side? Will it help any way to improve performance of my servers request handling? Is it anyway reduce the number of malloc() calls that happens while processing ASN messages? Thanks, Naga

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  • RTF formatting in jasper reports

    - by ed1t
    I have a report which I generate RTF format off that. It displays fine on the jsp page or in the ireports preview but when it generates the RFT format, it gives me the "Invalid text height" error. I have no idea which field is causing this error, is there a way in ireports to drill down exactly which field is causing it?

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  • Streaming Video with Blackberry Simulator

    - by Jenny
    So, I wrote a quick little app for the iphone that takes in an http URL, and plays the .mp4 video located at that URL (it does more than that, of course, but that's the meat of it). Naturally, I wanted to have it on more than just a single mobile platform, so I decided to target Blackberry next. However, I'm running into a lot of problems with the Blackberry Environment. First of all, I learn that I can only download 256k files! I learn how to set that variable in my MDS simulator (and learn that this is NOT a production solution, because any end users will have to have their BES or MDS admin change the setting there). Then, I find a video less than 2 MB I can practice with. Going to the browser prompts me to save the video (rather than it playing in the browser like I expected). After saving the video, it refuses to play, saying it's the wrong format. So. I can't find a reference to IF Blackberry can stream with HTTP (i"ve heard it CAN use RTSP, though, and heard some rumors that it can't use HTTP, which would really suck). I also can't find a reference to what format blackberry uses (although I can find a million programs that will convert one file to the 'blackberry' format). Surely SOMEONE must have tried to stream video with the blackberry before. How did they go about doing so? Is it just a hopeless pipedream? Will I have to go with RTSP? Sorry for the lack of a concrete question...I'm just really lost, and I hate how so many tutorials or forum posts seem to assume I know the capabilities of the Blackberry... Edit: I finally found out that the .3gp (which I'd never heard of ) format is what Blackberry uses. Still have no idea how to stream videos off the web, though. I found a tutorial: http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/1089414/How%5FTo%5F-%5FPlay%5Fvideo%5Fwithin%5Fa%5FBlackBerry%5Fsmartphone%5Fapplication.html?nodeid=1383173&vernum=0 That seemed to be useful, but the code doesn't work if you give it a URL (even though it claims it does).

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  • Attempting to find a formula for tessellating rectangles onto a board, where middle square can't be

    - by timemirror
    I'm working on a spatial stacking problem... at the moment I'm trying to solve in 2D but will eventually have to make this work in 3D. I divide up space into n x n squares around a central block, therefore n is always odd... and I'm trying to find the number of locations that a rectangle of any dimension less than n x n (eg 1x1, 1x2, 2x2 etc) can be placed, where the middle square is not available. So far I've got this.. total number of rectangles = ((n^2 + n)^2 ) / 4 ..also the total number of squares = (n (n+1) (2n+1)) / 6 However I'm stuck in working out a formula to find how many of those locations are impossible as the middle square would be occupied. So for example: [] [] [] [] [x] [] [] [] [] 3 x 3 board... with 8 possible locations for storing stuff as mid square is in use. I can use 1x1 shapes, 1x2 shapes, 2x1, 3x1, etc... Formula gives me the number of rectangles as: (9+3)^2 / 4 = 144/4 = 36 stacking locations However as the middle square is unoccupiable these can not all be realized. By hand I can see that these are impossible options: 1x1 shapes = 1 impossible (mid square) 2x1 shapes = 4 impossible (anything which uses mid square) 3x1 = 2 impossible 2x2 = 4 impossible etc Total impossible combinations = 16 Therefore the solution I'm after is 36-16 = 20 possible rectangular stacking locations on a 3x3 board. I've coded this in C# to solve it through trial and error, but I'm really after a formula as I want to solve for massive values of n, and also to eventually make this 3D. Can anyone point me to any formulas for these kind of spatial / tessellation problem? Also any idea on how to take the total rectangle formula into 3D very welcome! Thanks!

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  • No long-running conversations - IllegalArgumentException: Stack must not be null

    - by Markos Fragkakis
    Hi all, I have a very simple application with just 2 pages on WebLogic 10.3.2 (11g), Seam 2.2.0.GA. I have a command button in each, which makes a redirect-after-post to the other. This works well, as I see the URL of the current page I am seeing in the address bar. BUT, even though I have no long-running conversations defined, after a random number of clicks, and - I think - after a random number of seconds (~10s - 60s) I get the lovely exception at the end of this post. Now, if I have understood how temporary conversations work when redirecting this happens: When I first see my application, the url is http://localhost:7001/myapp When I click the button in pageA.xhtml, I end up in "pageB.xhtml?cid=26". This is normal because Seam extends the temporary conversation of the first request to last until the renderResponse phase of the redirect. So, it uses the cid (Conversation Id) of the extended temporary conversation to find any propagated parameters. When I click the button in pageB.xhtml, I end up in pageA.xhtml?cid=26 The same cid was given to the new extended temporary conversation. This is normal because the conversation ended at the end of the previous redirect-after-post, and not the number 26 is free to use as a cid. Is this all correct? If yes, why does this happen: If I re-type the applications home address (showing pageA) and re-click, I end up in pageB.xhtml?cid=29, which is a different number than 26. But 26 has ended after the previous RenderResponse phase, befire I re-types the url. Why is it not used instead of 29? So, to sup up, 2 questions: Why do I get the exception, even though I have not started any long-running conversations? What happens exactly with the cid? On what basis does it change? Cheers,

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  • fast similarity detection

    - by reinierpost
    I have a large collection of objects and I need to figure out the similarities between them. To be exact: given two objects I can compute their dissimilarity as a number, a metric - higher values mean less similarity and 0 means the objects have identical contents. The cost of computing this number is proportional to the size of the smaller object (each object has a given size). I need the ability to quickly find, given an object, the set of objects similar to it. To be exact: I need to produce a data structure that maps any object o to the set of objects no more dissimilar to o than d, for some dissimilarity value d, such that listing the objects in the set takes no more time than if they were in an array or linked list (and perhaps they actually are). Typically, the set will be very much smaller than the total number of objects, so it is really worthwhile to perform this computation. It's good enough if the data structure assumes a fixed d, but if it works for an arbitrary d, even better. Have you seen this problem before, or something similar to it? What is a good solution? To be exact: a straightforward solution involves computing the dissimilarities between all pairs of objects, but this is slow - O(n2) where n is the number of objects. Is there a general solution with lower complexity?

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  • Programatically send SMS to email using Verizon Motorola Droid on Android

    - by Dave
    Hi, I was wondering if anyone knew the proper way to send an SMS message to an e-mail address using Verizon's CDMA Motorola Droid phone. The internal messaging application appears to automagically do this. While 3rd party applications like SMSPopup don't seem to be able to properly reply to e-mail addresses unless you compose the message inside the messaging application. When the internal messaging application sends a SMS message there's a corresponding 'RIL_REQUEST_CDMA_SEND_SMS' entry in the logcat (adb logcat -b radio). When you send a SMS to an e-mail address it prints the same thing, so behind the scenes it looks as though it is sending an sms. The interesting thing is that if you look at the content provider sent box the messages are addressed to various 1270XX-XXX-XXXX numbers. On other services you can send e-mail addresses by sending a SMS to a predefined short sms number. And then formatting your SMS as emailaddress subject message i.e. http://en.wikipedia.org/wiki/SMS_gateway#Carrier-Provided_SMS_to_E-Mail_Gateways For example, using T-mobile's number (500) you can send a SMS to an e-mail using the following: SmsManager smsMgr = SmsManager.getDefault(); smsMgr.sendTextMessage("500", null, "[email protected] message sent to an e-mail address from a SMS", null, null); Does anyone know if It is possible to programatically send SMS to email messages from a CDMA Android phone? Does Verizon actually send your replies as SMS messages or are they actually sent as MMS or normal http email messages? Any ideas about how to intercept what the raw message being sent to see what's going on? It might be possible that Verizon somehow generates a fake number temporarily tied to an e-mail address (since repeated messages are not sent to the same number). But, that seems pretty heavy handed. Thanks!

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  • Speed up bitstring/bit operations in Python?

    - by Xavier Ho
    I wrote a prime number generator using Sieve of Eratosthenes and Python 3.1. The code runs correctly and gracefully at 0.32 seconds on ideone.com to generate prime numbers up to 1,000,000. # from bitstring import BitString def prime_numbers(limit=1000000): '''Prime number generator. Yields the series 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 ... using Sieve of Eratosthenes. ''' yield 2 sub_limit = int(limit**0.5) flags = [False, False] + [True] * (limit - 2) # flags = BitString(limit) # Step through all the odd numbers for i in range(3, limit, 2): if flags[i] is False: # if flags[i] is True: continue yield i # Exclude further multiples of the current prime number if i <= sub_limit: for j in range(i*3, limit, i<<1): flags[j] = False # flags[j] = True The problem is, I run out of memory when I try to generate numbers up to 1,000,000,000. flags = [False, False] + [True] * (limit - 2) MemoryError As you can imagine, allocating 1 billion boolean values (1 byte 4 or 8 bytes (see comment) each in Python) is really not feasible, so I looked into bitstring. I figured, using 1 bit for each flag would be much more memory-efficient. However, the program's performance dropped drastically - 24 seconds runtime, for prime number up to 1,000,000. This is probably due to the internal implementation of bitstring. You can comment/uncomment the three lines to see what I changed to use BitString, as the code snippet above. My question is, is there a way to speed up my program, with or without bitstring?

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  • mciSendString cannot save to directory path

    - by robUK
    Hello, VS C# 2008 SP1 I have a created a small application that records and plays audio. However, my application needs to save the wave file to the application data directory on the users computer. The mciSendString takes a C style string as a parameter and has to be in 8.3 format. However, my problem is I can't get it to save. And what is strange is sometime it does and sometimes it doesn't. Howver, most of the time is failes. However, if I save directly to the C drive it works first time everything. I have used 3 different methods that I have coded below. The error number that I get when it fails is 286."The file was not saved. Make sure your system has sufficient disk space or has an intact network connection" Many thanks for any suggestins, [DllImport("winmm.dll",CharSet=CharSet.Auto)] private static extern uint mciSendString([MarshalAs(UnmanagedType.LPTStr)] string command, StringBuilder returnValue, int returnLength, IntPtr winHandle); [DllImport("winmm.dll", CharSet = CharSet.Auto)] private static extern int mciGetErrorString(uint errorCode, StringBuilder errorText, int errorTextSize); [DllImport("Kernel32.dll", CharSet=CharSet.Auto)] private static extern int GetShortPathName([MarshalAs(UnmanagedType.LPTStr)] string longPath, [MarshalAs(UnmanagedType.LPTStr)] StringBuilder shortPath, int length); // Stop recording private void StopRecording() { // Save recorded voice string shortPath = this.shortPathName(); string formatShortPath = string.Format("save recsound \"{0}\"", shortPath); uint result = 0; StringBuilder errorTest = new StringBuilder(256); // C:\DOCUME~1\Steve\APPLIC~1\Test.wav // Fails result = mciSendString(string.Format("{0}", formatShortPath), null, 0, IntPtr.Zero); mciGetErrorString(result, errorTest, errorTest.Length); // command line convention - fails result = mciSendString("save recsound \"C:\\DOCUME~1\\Steve\\APPLIC~1\\Test.wav\"", null, 0, IntPtr.Zero); mciGetErrorString(result, errorTest, errorTest.Length); // 8.3 short format - fails result = mciSendString(@"save recsound C:\DOCUME~1\Steve\APPLIC~1\Test.wav", null, 0, IntPtr.Zero); mciGetErrorString(result, errorTest, errorTest.Length); // Save to C drive works everytime. result = mciSendString(@"save recsound C:\Test.wav", null, 0, IntPtr.Zero); mciGetErrorString(result, errorTest, errorTest.Length); mciSendString("close recsound ", null, 0, IntPtr.Zero); } // Get the short path name so that the mciSendString can save the recorded wave file private string shortPathName() { string shortPath = string.Empty; long length = 0; StringBuilder buffer = new StringBuilder(256); // Get the length of the path length = GetShortPathName(this.saveRecordingPath, buffer, 256); shortPath = buffer.ToString(); return shortPath; }

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  • GZipStream or DeflateStream class?

    - by Seventh Element
    The MSDN documentation tells me the following: The GZipStream class uses the gzip data format, which includes a cyclic redundancy check value for detecting data corruption. The gzip data format uses the same compression algorithm as the DeflateStream class. It seems GZipStream adds some extra data to the output (relative to DeflateStream). I'm wondering, in what type of a scenario would it be essential to use GZipStream and not DeflateStream?

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  • Displaying an inverted pyramid of asterisks

    - by onyebuoke
    I help in my for my program. I am required 2 create a inverted pyramid of stars which rows depends on the number of stars the user keys, but I've done it so it does not give an inverted pyramid, it gives a regular pyramid. #include <stdio.h> #include <conio.h> void printchars(int no_star, char space); int getNo_of_rows(void); int main(void) { int numrows, rownum; rownum=0; numrows=getNo_of_rows(); for(rownum=0;rownum<=numrows;rownum++) { printchars(numrows-rownum, ' '); printchars((2*rownum-1), '*'); printf("\n"); } _getche(); return 0; } void printchars(int no_star, char space) { int cnt; for(cnt=0;cnt<no_star;cnt++) { printf("%c",space); } } int getNo_of_rows(void) { int no_star; printf("\n Please enter the number of stars you want to print\n"); scanf("%d",&no_star); while(no_star<1) { printf("\n number incorrect, please enter correct number"); scanf("%d",&no_star); } return no_star; }

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  • Convert time to decimals in .net

    - by henrico
    Is there an easy way to present time (hh:mm) as a decimal value? Example, 01:08 should become 1,13. I have an asp:textbox masked (ajax) as time with the mask format "99:99". Next to this box I need to present the entered value as decimal. <asp:TextBox ID="time" runat="server" /> hh:mm ([time in decimal format]) <ajaxToolkit:MaskedEditExtender runat="server" Mask="99:99" TargetControlID="time" MaskType="Time" />

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  • How can I make an AdvancedDataGrid re-display its labels when the results of the labelFunction chang

    - by Chris R
    I have an AdvancedDataGrid with a custom label function whose value can change based on other form status (specifically, there's a drop down to choose the time display format for some columns). Right now, I have this labelFunction: internal function formatColumnTime(item: Object, column: AdvancedDataGridColumn): String { var seconds: Number = item[column.dataField]; return timeFormat.selectedItem.labelFunction(seconds); } internal function formatTimeAsInterval(time: Number): String { if (isNaN(time)) return ""; var integerTime: int = Math.round(time); var seconds: int = integerTime % 60; integerTime = integerTime / 60; var minutes: int = integerTime % 60; var hours: int = integerTime / 60; return printf("%02d:%02d:%02d", hours, minutes, seconds); } internal function formatTimeAsFractions(time: Number): String { if (isNaN(time)) return ""; var hours: Number = time / 3600.0; return new String(Math.round(hours * 100) / 100); } ... and the timeFormat object is a combo box with items whose labelFunction attributes are formatTimeAsFractions and formatTimeAsInterval. The columns that have time formats have formatColumnTime as their labelFunction value, because extracting the seconds in that function and passing it in to the formatters made for a more testable app (IMHO). So, when the timeFormat.selectedItem value changes, I want to force my grid to re-calculate the labels of these colums. What method must I call on it? invalidateProperties() didn't work, so that's out.

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  • Replace Placeholders in word document with c#

    - by Xelluloid
    Hi there, I have a template in word (.docx) format and want to replace some placeholders in this template with my own data, do you know where I can find the right classes for this project? It would be nice for me to know the namespace. Are there any newer classes for handling word documents in the docx format (xml) than the com classes? Thank you for all your answers, I hope someone can help me with my problem. greets Sebastian

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  • Video conversion in java

    - by Maksim
    Is there any framework or open source project for Java that does video conversion from any video format to any video format. Something similar to Panda Video Conversion framework.

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  • DataTable DataRow Select String with Quotation Marks

    - by RBrattas
    Hi, My string include quotation mark; the select statement crash. vm_TEXT_string = "Hello 'French' People"; vm_DataTable_SELECT_string = "[MyField] = '" + vm_TEXT_string + "'"; DataRow[] o_DataRow_ARRAY_Found = vco_DataTable.Select (vm_DataTable_SELECT_string); I cannot use this statement: string filter = "[MyColumn]" + " LIKE '%" + SearchWord + "%'"; I found string format: DataRow[] oDataRow = oDataSet.Tables["HasDiseas"].Select ( string.Format ( "DName='{0}'", DiseasListBox.SelectedItem.ToString () ) ); Any suggestion to selecta string with quotation mark? Thank you, Rune

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  • Is any solution the correct solution?

    - by Eli
    I always think to myself after solving a programming challenge that I have been tied up with for some time, "It works, thats good enough". I don't think this is really the correct mindset, in my opinion and I think I should always be trying to code with the greatest performance. Anyway, with this said, I just tried a ProjectEuler question. Specifically question #2. How could I have improved this solution. I feel like its really verbose. Like I'm passing the previous number in recursion. <?php /* Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of all the even-valued terms in the sequence which do not exceed four million. */ function fibonacci ( $number, $previous = 1 ) { global $answer; $fibonacci = $number + $previous; if($fibonacci > 4000000) return; if($fibonacci % 2 == 0) { $answer = is_numeric($answer) ? $answer + $fibonacci : $fibonacci; } return fibonacci($fibonacci, $number); } fibonacci(1); echo $answer; ?> Note this isn't homework. I left school hundreds of years ago. I am just feeling bored and going through the Project Euler questions

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  • Populate a list from xml using python

    - by Sam
    I have an xml file in the following format: <food> <desert> cake <desert> </food> <history> currently in my belly </history> I want to create two list, food and text populated with cake and history in string format. Is there an easy way to do it in python?

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