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• Making an svg image object clickable with onclick, avoiding absolute positioning

  - by user256410

  I have tried to change the images on my site from to svg, changing img tags to embed and object tags(standard procedure, i think). But, implementing the onclick function, which previously was contained in the img tag is proving most difficult. I found onclick had no effect when placed inside the object or embed tag. So, I made a div exclusively for the svg, and placed onclick in this div tag. But, no effect unless visitor clicks on the edges/padding of the image. I have read about overlaying a div, but am trying to avoid using absolute positioning, or specifying positions at all. Maybe there's a way to do it without specifying postions? Or maybe theres another way to apply onclick to a svg. Has anyone encountered this problem? Questions and suggestions are welcome.

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• why is this closing the new pop up window

  - by user295189

  I am trying to open a window and then redirecting the original page to a new location. It opens the window, however before redirecting the parent page, it closes the new window too. How can I fix that function orderPrint() { var n = new Object(); n. ID = <?php echo $ID->ID; ?>; n.action = posttothispage.php"; n.target = popWinCenterScreen("/common/html/empty.htm", parseInt(window.screen.height * 0.8), 796, "resize"); myFuction.PostRequest(n); window.location = “someotherpagethanthis.php”; }

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• Understanding prototype method calls

  - by Tristan

  In trying to call a method on the CodeMirror javascript code editor. I'm new to javascript and trying to understand how object oriented stuff works. I'm having problems calling what I believe are methods. For instance, var editor = CodeMirror.fromTextArea('code', options); editor.grabKeys(function(e) { alert("Key event");}); This gives the Uncaught TypeError: Cannot call method 'grabKeys' of undefined. Looking at the editor object reveals that grabKeys seems to be located at editor.__proto__.grabKeys. How should I be thinking about this?

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• Oracle analytic functions for "the attribute from the row with the max date"

  - by tpdi

  I'm refactoring a colleague's code, and I have several cases where he's using a cursor to get "the latest row that matches some predicate": His technique is to write the join as a cursor, order it by the date field descending, open the cursor, get the first row, and close the cursor. This requires calling a cursor for each row of the result set that drives this, which is costly for many rows. I'd prefer to be able to join, but what something cheaper than a correlated subquery: select a.id_shared_by_several_rows, a.foo from audit_trail a where a.entry_date = (select max(a.entry_date) from audit_trail b where b.id_shared_by_several_rows = a.id_shared_by_several_rows ); I'm guessing that since this is a common need, there's an Oracle analytic function that does this?

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• Assert a good practice or not ?

  - by rkenshin

  Is it a good practice to use Assert for function parameters to enforce their validity. I was going through the source code of Spring Framework and I noticed that they use Assert.notNull a lot. Here's an example public static ParsedSql parseSqlStatement(String sql) { Assert.notNull(sql, "SQL must not be null");} Here's Another one public NamedParameterJdbcTemplate(DataSource dataSource) { Assert.notNull(dataSource, "The [dataSource] argument cannot be null."); this .classicJdbcTemplate = new JdbcTemplate(dataSource); } public NamedParameterJdbcTemplate(JdbcOperations classicJdbcTemplate) { Assert.notNull(classicJdbcTemplate, "JdbcTemplate must not be null"); this .classicJdbcTemplate = classicJdbcTemplate; } Thank you

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• Python (pdb) - Queueing up commands to execute

  - by kpatelPro

  I am implementing a "breakpoint" system for use in my Python development that will allow me to call a function that, in essence, calls pdb.set_trace(); Some of the functionality that I would like to implement requires me to control pdb from code while I am within a set_trace context. Example: disableList = [] def breakpoint(name=None): def d(): disableList.append(name) #**** #issue 'run' command to pdb so user #does not have to type 'c' #**** if name in disableList: return print "Use d() to disable breakpoint, 'c' to continue" pdb.set_trace(); In the above example, how do I implement the comments demarked by the #**** ? In other parts of this system, I would like to issue an 'up' command, or two sequential 'up' commands without leaving the pdb session (so the user ends up at a pdb prompt but up two levels on the call stack. Thanks!

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• Django exclude(**kwargs) help

  - by shawnjan

  Hey guys/gals! I had a question for you, something that I can't seem to find the solution for... Basically, I have a model called Environment, and I am passing all of them to a view, and there are particular environments that I would like to exclude. Now, I know there is a exclude function on a queryset, but I can't seem to figure out how to use it for multiple options... For example, I tried this but it didn't work: kwargs = {"name": "env1", "name": "env2"} envs = Environment.objects.exclude( kwards ) But the only thing that it will exclude is the last "name" value in the list of kwargs. I understand why it does that now, but I still can't seem to exclude multiple objects with one command. Any help is much appreciated! Shawn

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• Works in firefox but not IE8

  - by creocare

  This is working fine in firefox but only closes the first page and then breaks in IE8. Firebug in IE8 says that x.item(o) is null. I can't figure out why this works in firefox but not IE. Thanks for any help. pager(x=document.getElementsByName("pg1")); function pager( x ) { var curr = document.getElementById('showing'); $(curr).fadeOut('fast'); curr.id = 'hide'; $(x).fadeIn('slow'); x.item(0).id ='showing'; }

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• Doxygen ignoring inherited functions, when class inherits privately but the functions declared publi

  - by MichaelM

  Sorry for long winded title, this makes a lot more sense with an example. Suppose we have a class A: class A { public: void someFunction(); void someOtherFunction(); }; And another class that privately inherits from A. However, we re-declare one of the inherited functions as public: class B : private A { public: A::someFunction; } When this code is processed by Doxygen, it does not recognise the public declaration of someFunction in class B. Instead, it shows someFunction as a privately inherited function. This is incorrect. Is anybody aware of how to fix this? Cheers

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• Updating multiple Sprites - AS3 performance best practices

  - by dani

  Within the container "BubbleContainer" I have multiple "Bubble sprites". Each bubble's graphics object (a circle) is updated on a timer event. Let's say I have 50 Bubble sprites and each circle's radius should be updated with a mathematical formula. How do I organize this logic? How do I update all Bubble sprites within the BubbleContainer? (should I call a bubble.update() function or make a temporary reference to the graphics object?) Where do I put the Math logic? (as static functions?)

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• Difference between performSelectorInBackground and NSOperation Subclass

  - by AmitSri

  I have created one testing app for running deep counter loop. I run the loop fuction in background thread using performSelectorInBackground and also NSOperation subclass separately. I am also using performSelectorOnMainThread to notify main thread within backgroundthread method and [NSNotificationCenter defaultCenter] postNotificationName within NSOperation subclass to notify main thread for updating UI. Initially both the implementation giving me same result and i am able to update UI without having any problem. The only difference i found is the Thread count between two implementations. The performSelectorInBackground implementation created one thread and got terminated after loop finished and my app thread count again goes to 1. The NSOperation subclass implementation created two new threads and keep exists in the application and i can see 3 threads after loop got finished in main() function. So, my question is why two threads created by NSOperation and why it didn't get terminated just like the first background thread implementation? I am little bit confuse and unable to decide which implementation is best in-terms of performance and memory management. Thanks

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• OpenGL ES Simple Undo Last Drawing

  - by Erika

  Hi Everyone, I am trying to figure out how to implement a simple "undo" of last drawing action on the iPhone screen. I draw by first preparing the frame buffer: [EAGLContext setCurrentContext:context]; glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer); I then prepare the vertex array and draw this way: glVertexPointer(2, GL_FLOAT, 0, vertexBuffer); glDrawArrays(GL_POINTS, 0, vertexCount); glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer); [context presentRenderbuffer:GL_RENDERBUFFER_OES]; How do I simple undo this last action? There has to be a way to save previous state or an built-in OpenGL ES function, I would think. Thanks

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• Problem with openssl_get_privatekey returning false

  - by Joe Corkery

  I am trying to generate a signed url for Amazon's CloudFront service but am running into problems in that the openssl_get_privatekey function appears to be returning false and I can't quite figure out why. Here is the code (PHP) that I am using: $priv_key = file_get_contents(path_to_my_pem_file); $priv_keyid = openssl_get_privatekey($privkey); Unfortunately, everytime I try this openssl_get_privatekey fails silently and I run into errors when I try to sign with openssl_sign later on. I've tried printing out the contents of $priv_key after it has been read in and it appears to be correct. I'm running this on RHEL 5.4 using PHP 5.2.13. I've confirmed that file pem file is readable and I've also run dos2unix on it just in case (didn't work before or after). Any thoughts would be greatly appreciated as I am relatively new to both PHP and openssl.

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• Is recursion ever faster than looping?

  - by Carson Myers

  I know that recursion is sometimes a lot cleaner than looping, and I'm not asking anything about when I should use recursion over iteration, I know there are lots of questions about that already. What I'm asking is, is recursion ever faster than a loop? To me it seems like, you would always be able to refine a loop and get it to perform more quickly than a recursive function because the loop is absent constantly setting up new stack frames. I'm specifically looking for whether recursion is faster in applications where recursion is the right way to handle the data, such as in some sorting functions, in binary trees, etc.

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• How do I implement IDataServiceMetadataProvider and tell my Data Service to use that custom provider

  - by Pwninstein

  There's no obvious entry point for implementing a custom provider for an ADO.NET Data Service using IDataServiceMetadataProvider, and then telling a Data Service to use that provider. Has anyone had any luck in this area? I've tried implementing this interface on my Data Source class, but none of my breakpoints are hit. There is also no (obvious) way to set the provider from the Data Service's DataServiceConfiguration parameter passed in to the InitializeService function. Any help would be appreciated. Thanks! Data Services Providers (ADO.NET Data Services) IDataServiceMetadataProvider Members

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• .NET COM Interop with references to other libraries

  - by user262190

  Hello,I'm up against a problem when loading a class in a managed library from a COM Interop library. basically I have some Unmanaged C++ code and a COM Interop library written in C#. And finally a 3rd library which is referenced by the COM Interop library which contains a class: public class MyClass{ public MyClass(){} } What I'd like to do is from my unmanaged c++ code, call a function in the Interop library The C++ code doesn't need to know of the existence of the third library, it's only used within the Interop. Init(){ MyClass _class = new MyClass(); } for some reason this line in Init fails "MyClass _class = new MyClass();", and I don't get very usefull error messages, all I have to go on is a few of these in my output window: "First-chance exception at 0x7c812afb in DotNet_Com_Call.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000.." and the HRESULT of the "HRESULT hr = pDotNetCOMPtr-Init();" line in my C++ code is "The system cannot find the specified file" I'm new to COM so if anyone has any ideas or pointer to get me going the right direction, I'd appreciate it, Thanks

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• Pass client side js variable into server side jscript

  - by George

  How can I get the query string from the browser url using client side js and set it as a variable to use in some server side scripting? Client side script: var project = getQueryString("P"); function getQueryString(param) { var queryString = window.location.search.substring(1); splitQueryString = queryString.split("&"); for (i=0; i<splitQueryString.length; i++) { query = splitQueryString[i].split("="); if (query[i] == param) { return query[1]; } } } Server side script: response.write ('<td><a href="/index.asp?P=' + project + ">' + obj.BODY[i].NAME + '</a></td>');

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• Emacs X11 autocompletion (intellisense)

  - by JC

  Hi everyone, I use visual studio for day to day programming (read putting food in my mouth) but for personal programming (read c/c++ hacking) I use Emacs. Right now I am doing a programming exercise involving the X11 API. I am continually referring to the programming API manual to find the signature of function calls. What would be really nice would be if there was an emacs alternative to the visual studio intellisense. I know there is autocompletion for the language specifics. Is there such an extension available to Emacs? Or if not, is there way of creating one, maybe using the language specifics mechanism already used for auto completion?

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• SHELL OR PERL QUESTION

  - by user150674

  I have a very large file, named 'ColCheckMe', tab-delimited, that you are asked to process. You are told that each line in 'ColCheckMe' has 7 columns, and that the values in the 5th column are integers. Using shell functions indicate how you would verify that these conditions were satisfied in 'ColCheckMe' K got this... nawk ‘ NF != 7 { Printf(“[%d] has invalid [%d] number of fileds\n”, FNR, NF) } $5 !~ /^[0-9]+$/ { Printf(“[%d] 5th field is invalid [%s]\n”, FNR, $5) }’ ColCheckMe Now, 2. In with the similar file, you are told that each value in column 1 is unique. How would I verify that? Also write a shell function that counts the number of occurrences of the word “SpecStr” in the file 'ColCheckMe' Any one can help in SHELL or everything including the first in PERL Scripting.

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• Installing Recaptcha in Joomla 1.5 user registration

  - by Samuel

  I am trying to install ReCaptcha into the user registration of Joomla 1.5. This may just be an issue with Joomla but when i hit register nothing happens. I think it's doing some JavaScript form validation but there is nothing telling the user what went wrong. if, God forbid, they do fill out the form correctly Joomla will redirect the user to the homepage and give no notice of success. Is this a Joomla issue or is there something wrong with my install? Does anyone know of a plug-in or module for Joomla that would make this easier? Thanks in advance, Samuel UPDATE: Joomla does a lot of "stuff"/"something" to the $_POST and $_GET variables which was causing the reCaptcha to not function. This was for work which is past so I am not spending anymore time on it. Shameless Plug: use wordpress instead. this can be closed as I don't have time to verify which answer works

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• CKeditor with a CKFinder custom config file

  - by Daan

  I know it is possible to load a custom config file for CKFinder CKFinder.config.customConfig = baseUrl + '/js/ckfinder_config.js'; However, when I load CKFinder within the CKEditor I don't know how to load the custom config for CKFinder. I only got these options: CKEDITOR.editorConfig = function( config ) { config.filebrowserBrowseUrl = baseUrl ; config.filebrowserImageBrowseUrl = baseUrl ; config.filebrowserFlashBrowseUrl = baseUrl ; config.filebrowserUploadUrl = baseUrl ; config.filebrowserImageUploadUrl = baseUrl ; config.filebrowserFlashUploadUrl = baseUrl ; } Is there a way?

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• What is the leading LINQ for JavaScript library?

  - by Tom Tresansky

  I'm looking for a JavaScript library that will allow me to query complex JSON objects using a LINQ-like syntax. A quick search found a couple of promising options that look they might offer what I need: LINQ to JavaScript and jLinq Does any one have any experience using them? What are some pros and cons? Is the performance comparable? Does the function-passing syntax of LINQ to JavaScript offer any hidden benefits (I personally find the syntax of jLinq more appealing on first glance)? What have you found lacking in either project? Did you ever try contacting the authors? How responsive were they? What project is more widely used?

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• Select image iphone simulator using phonegap camera api

  - by udhaya

  I'm new to Xcode and iPhone apps. I want to select an image from iPhone (camera or library) and send to php via ajax. http://wiki.phonegap.com/iPhone:-Camera-API I'm using the phonegap framework, Xcode iPhone SDK version 3.1.x. On clicking button it calls function with parameter 0 or 1, but it does not initialize camera or display the library. I used the same code as in the above link. it shows this error in debug console: 2010-03-25 23:36:02.337 PhoneGap[7433:207] Camera.getPicture: Camera not available. simulator dsnt have camera, but photos(from library) also not wokring! what might be the error? i think when using navigator.camera.getPicture first check for camera and if not break and shws error ~?

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• Convert Bitmap Files into JPEG using the GD library in PHP

  - by Daniel P

  I have been trying to figure out a way to convert bitmap files into a JPEG using the GD library in PHP. I have tried numerous implementations but nothing seems to work. I have tried to tell my client that they should not use Bitmap files but he insists and quite frankly does not comprehend enough about computers to convert them to JPG on his own. I can not use ImageMagick on this server and I need a pure GD solution. Thank you in advance for any and all help. EDIT: The bitmap images that are being used are 16-bit and that is where the problem is occurring. I have this function that I have working .... kinda: function ImageCreateFromBMP($filename) { if (! $f1 = fopen($filename,"rb")) return FALSE; $FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1,14)); if ($FILE['file_type'] != 19778) return FALSE; $BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'. '/Vcompression/Vsize_bitmap/Vhoriz_resolution'. '/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1,40)); $BMP['colors'] = pow(2,$BMP['bits_per_pixel']); if ($BMP['size_bitmap'] == 0) $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset']; $BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8; $BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']); $BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4); $BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4); $BMP['decal'] = 4-(4*$BMP['decal']); if ($BMP['decal'] == 4) $BMP['decal'] = 0; $PALETTE = array(); if ($BMP['colors'] < 16777216 && $BMP['colors'] != 65536) { $PALETTE = unpack('V'.$BMP['colors'], fread($f1,$BMP['colors']*4)); } $IMG = fread($f1,$BMP['size_bitmap']); $VIDE = chr(0); $res = imagecreatetruecolor($BMP['width'],$BMP['height']); $P = 0; $Y = $BMP['height']-1; while ($Y >= 0) { $X=0; while ($X < $BMP['width']) { if ($BMP['bits_per_pixel'] == 24) $COLOR = unpack("V",substr($IMG,$P,3).$VIDE); elseif ($BMP['bits_per_pixel'] == 16) { $COLOR = unpack("v",substr($IMG,$P,2)); $blue = ($COLOR[1] & 0x001f) << 3; $green = ($COLOR[1] & 0x07e0) >> 3; $red = ($COLOR[1] & 0xf800) >> 8; $COLOR[1] = $red * 65536 + $green * 256 + $blue; } elseif ($BMP['bits_per_pixel'] == 8) { $COLOR = unpack("n",$VIDE.substr($IMG,$P,1)); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 4) { $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1)); if (($P*2)%2 == 0) $COLOR[1] = ($COLOR[1] >> 4) ; else $COLOR[1] = ($COLOR[1] & 0x0F); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 1) { $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1)); if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7; elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6; elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5; elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4; elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3; elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2; elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1; elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } else return FALSE; imagesetpixel($res,$X,$Y,$COLOR[1]); $X++; $P += $BMP['bytes_per_pixel']; } $Y--; $P+=$BMP['decal']; } fclose($f1); return $res; } The resulting image is this: If you look at the image on the left hand side you can see that the resulting image is not correctly lined up. The little sliver belongs on the right hand side. Where is the code going wrong? The problem is occurring in the 16-bit else-if. Thank you again for all the help.

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• How to implement full text search in Django?

  - by Jannis

  I would like to implement a search function in a django blogging application. The status quo is that I have a list of strings supplied by the user and the queryset is narrowed down by each string to include only those objects that match the string. See: if request.method == "POST": form = SearchForm(request.POST) if form.is_valid(): posts = Post.objects.all() for string in form.cleaned_data['query'].split(): posts = posts.filter( Q(title__icontains=string) | Q(text__icontains=string) | Q(tags__name__exact=string) ) return archive_index(request, queryset=posts, date_field='date') Now, what if I didn't want do concatenate each word that is searched for by a logical AND but with a logical OR? How would I do that? Is there a way to do that with Django's own Queryset methods or does one have to fall back to raw SQL queries? In general, is it a proper solution to do full text search like this or would you recommend using a search engine like Solr, Whoosh or Xapian. What are there benefits? Thanks for taking the time

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