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  • Google I/O 2012 - Enterprise Geospatial in the Cloud

    Google I/O 2012 - Enterprise Geospatial in the Cloud Sean Maday, Mano Marks Google now offers a powerful and versatile cloud hosting solution for geospatial data and analysis. Learn how your business can exploit this potential to reduce costs, increase productivity, and deliver services to your employees and developers using familiar tools like Google Earth and the Google Maps API. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 790 9 ratings Time: 55:03 More in Science & Technology

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  • En direct des Qt DevDays 2012 : compte-rendu de la keynote sur BlackBerry 10, premières impressions

    Bonjour à tous, Actuellement, je suis à Berlin, au Cafe Moskau pour assister aux Qt DevDays 2012. Comme chaque année, la première journée est réservée aux formations. J'assiste à la formation appelée "Modern OpenGL with Qt5" réalisée par Sean Harmer de KDAB. Nous avons passé les deux heures de la matinée à voir la création et l'initialisation d'une fenêtre OpenGL dans Qt 5 (il y a quelques changements mineurs par rapport à Qt 4) et l'affichage d'un joli triangle en OpenGL moderne.

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  • En direct des Qt DevDays 2012 : détails techniques sur l'utilisation d'OpenGL moderne dans Qt 5

    Bonjour à tous, Actuellement, je suis à Berlin, au Cafe Moskau pour assister aux Qt DevDays 2012. Comme chaque année, la première journée est réservée aux formations. J'assiste à la formation appelée "Modern OpenGL with Qt5" réalisée par Sean Harmer de KDAB. Nous avons passé les deux heures de la matinée à voir la création et l'initialisation d'une fenêtre OpenGL dans Qt 5 (il y a quelques changements mineurs par rapport à Qt 4) et l'affichage d'un joli triangle en OpenGL moderne.

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  • SQL Saturday #300 - Kansas City

    SQL Saturday is coming to Kansas on September 13, 2014. Our very own Steve Jones will be presenting, alongside other big names like Glenn Berry, Kathi Kellenberger, Sean and Jen McCown, Jason Strate, and many more. Register while space is available. Get alerts within 15 seconds of SQL Server issuesSQL Monitor checks performance data every 15 seconds, so you can fix issues before your users even notice them. Start monitoring with a free trial.

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  • En direct des Qt DevDays 2012 : compte-rendu de la formation sur l'OpenGL moderne avec Qt 5

    Bonjour à tous, Actuellement, je suis à Berlin, au Cafe Moskau pour assister aux Qt DevDays 2012. Comme chaque année, la première journée est réservée aux formations. J'assiste à la formation appelée "Modern OpenGL with Qt5" réalisée par Sean Harmer de KDAB. Nous avons passé les deux heures de la matinée à voir la création et l'initialisation d'une fenêtre OpenGL dans Qt 5 (il y a quelques changements mineurs par rapport à Qt 4) et l'affichage d'un joli triangle en OpenGL moderne.

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  • En direct des Qt DevDays 2012 : compte-rendu sur la création de compositeurs avec le module Qt Wayland

    Bonjour à tous, Actuellement, je suis à Berlin, au Cafe Moskau pour assister aux Qt DevDays 2012. Comme chaque année, la première journée est réservée aux formations. J'assiste à la formation appelée "Modern OpenGL with Qt5" réalisée par Sean Harmer de KDAB. Nous avons passé les deux heures de la matinée à voir la création et l'initialisation d'une fenêtre OpenGL dans Qt 5 (il y a quelques changements mineurs par rapport à Qt 4) et l'affichage d'un joli triangle en OpenGL moderne.

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  • socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access

    - by Sean Ochoa
    Hello all. I'm trying to create a custom TCP stack using Python 2.6.5 on Windows 7 to serve valid http page requests on port 80 locally. But, I've run into a snag with what seems like Windows 7 tightened up security. This code worked on Vista. Here's my sample code: import SocketServer class MyTCPHandler(SocketServer.BaseRequestHandler): def handle(self): headerText = """HTTP/1.0 200 OK Date: Fri, 31 Dec 1999 23:59:59 GMT Content-Type: text/html Content-Length: 1354""" bodyText = "<html><body>some page</body></html>" self.request.send(headerText + "\n" + bodyText) if __name__ == "__main__": HOST, PORT = "localhost", 80 server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) server.serve_forever() C:\pythonpython TestServer.py Traceback (most recent call last): File "TestServer.py", line 19, in server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) File "C:\Python26\lib\SocketServer.py", line 400, in init self.server_bind() File "C:\Python26\lib\SocketServer.py", line 411, in server_bind self.socket.bind(self.server_address) File "", line 1, in bind socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions How exactly do I get this to work on Windows 7?

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  • Setting up an IP Camera with silverlight

    - by Sean
    I am trying to set up an IP camera and have it work through Silverlight I am using both Microsoft Expression and Microsoft Visual Studio 2008. I am able to do encoding with a usb connected web cam but I cannot find a way to use the encoder to connect to ip camera connected to our switch. Does anyone have experience setting up an ip camera to encode into the Silverlight framework?

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  • Eclipse Error: Processing Java changes since last activation

    - by Sean Ochoa
    I'm running Ubuntu 10.04 and I'm getting this error on startup of Eclipse: An internal error occurred during: Processing Java changes since last activation org.eclipse.core.resources.IWorkspace.addSaveParticipant(Ljava/lang/String;Lorg/eclipse/core/resources/ISaveParticipant;)Lorg/eclipse/core/resources/ISavedState; I pasted my full eclipse configuration here: http://pastebin.com/NtzN0HRG. And, here's a basic synopsis of what I have installed so far: EPIC (for Perl), Aptana (for web), Subversion connectors (with JavaHL), and PyDev. Any ideas?

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  • How to fix the endless printing loop bug in Nevrona Rave

    - by Sean B. Durkin
    Nevrona Designs' Rave Reports is a Report Engine for use by Embarcadero's Delphi IDE. This is what I call the Rave Endless Loop bug. In Rave Reports version 6.5.0 (VCL10) that comes bundled with Delphi 2006, there is a nortorious bug that plagues many Rave report developers. If you have a non-empty dataset, and the data rows for this dataset fit exactly into a page (that is to say there are zero widow rows), then upon PrintPreview, Rave will get stuck in an infinite loop generating pages. This problem has been previously reported in this newsgroup under the following headings: "error: generating infinite pages"; Hugo Hiram 20/9/2006 8:44PM "Rave loop bug. Please help"; Tomas Lazar 11/07/2006 7:35PM "Loop on full page of data?"; Tony Chistiansen 23/12/2004 3:41PM reply to (3) by another complainant; Oliver Piche "Endless lopp print bug"; Richso 9/11/2004 4:44PM In each of these postings, there was no response from Nevrona, and no solution was reported. Possibly, the problem has also been reported on an allied newsgroup (nevrona.public.rave.reports.general), to wit: 6. "Continuously generating report"; Jobard 20/11/2005 Although it is not clear to me if (6) is the Rave Endless loop bug or another problem. This posting did get a reply from Nevrona, but it was more in relation to multiple regions ("There is a problem when using multiple regions that go over a page-break.") than the problem of zero widows.

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  • JQuery > XSLT Plugin > Component returned failure code: 0x80600011 [nsIXSLTProcessorObsolete.transfo

    - by Sean Ochoa
    So, I'm using the XSLT plugin for JQuery, and here's my code: function AddPlotcardEventHandlers(){ // some code } function reportError(exception){ alert(exception.constructor.name + " Exception: " + ((exception.name) ? exception.name : "[unknown name]") + " - " + exception.message); } function GetPlotcards(){ $("#content").xslt("../xml/plotcards.xml","../xslt/plotcards.xsl", AddPlotcardEventHandlers,reportError); } Here's the modified jquery plugin. I say that its modified because I've added callbacks for success and error handling. /* * jquery.xslt.js * * Copyright (c) 2005-2008 Johann Burkard (<mailto:[email protected]>) * <http://eaio.com> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * */ /** * jQuery client-side XSLT plugins. * * @author <a href="mailto:[email protected]">Johann Burkard</a> * @version $Id: jquery.xslt.js,v 1.10 2008/08/29 21:34:24 Johann Exp $ */ (function($) { $.fn.xslt = function() { return this; } var str = /^\s*</; if (document.recalc) { // IE 5+ $.fn.xslt = function(xml, xslt, onSuccess, onError) { try{ var target = $(this); var change = function() { try{ var c = 'complete'; if (xm.readyState == c && xs.readyState == c) { window.setTimeout(function() { target.html(xm.transformNode(xs.XMLDocument)); if (onSuccess) onSuccess(); }, 50); } }catch(exception){ if (onError) onError(exception); } }; var xm = document.createElement('xml'); xm.onreadystatechange = change; xm[str.test(xml) ? "innerHTML" : "src"] = xml; var xs = document.createElement('xml'); xs.onreadystatechange = change; xs[str.test(xslt) ? "innerHTML" : "src"] = xslt; $('body').append(xm).append(xs); return this; }catch(exception){ if (onError) onError(exception); } }; } else if (window.DOMParser != undefined && window.XMLHttpRequest != undefined && window.XSLTProcessor != undefined) { // Mozilla 0.9.4+, Opera 9+ var processor = new XSLTProcessor(); var support = false; if ($.isFunction(processor.transformDocument)) { support = window.XMLSerializer != undefined; } else { support = true; } if (support) { $.fn.xslt = function(xml, xslt, onSuccess, onError) { try{ var target = $(this); var transformed = false; var xm = { readyState: 4 }; var xs = { readyState: 4 }; var change = function() { try{ if (xm.readyState == 4 && xs.readyState == 4 && !transformed) { var processor = new XSLTProcessor(); if ($.isFunction(processor.transformDocument)) { // obsolete Mozilla interface resultDoc = document.implementation.createDocument("", "", null); processor.transformDocument(xm.responseXML, xs.responseXML, resultDoc, null); target.html(new XMLSerializer().serializeToString(resultDoc)); } else { processor.importStylesheet(xs.responseXML); resultDoc = processor.transformToFragment(xm.responseXML, document); target.empty().append(resultDoc); } transformed = true; if (onSuccess) onSuccess(); } }catch(exception){ if (onError) onError(exception); } }; if (str.test(xml)) { xm.responseXML = new DOMParser().parseFromString(xml, "text/xml"); } else { xm = $.ajax({ dataType: "xml", url: xml}); xm.onreadystatechange = change; } if (str.test(xslt)) { xs.responseXML = new DOMParser().parseFromString(xslt, "text/xml"); change(); } else { xs = $.ajax({ dataType: "xml", url: xslt}); xs.onreadystatechange = change; } }catch(exception){ if (onError) onError(exception); }finally{ return this; } }; } } })(jQuery); And, here's my error msg: Object Exception: [unknown name] - Component returned failure code: 0x80600011 [nsIXSLTProcessorObsolete.transformDocument] Here's the info on the browser that I'm using for testing (with firebug v1.5.4 add-on installed): Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 I'm really not sure what to do about this.... any thoughts?

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  • Getting Started with UDK

    - by Sean Edwards
    I've been trying for a couple of days now to learn UDK, but I seem to be stuck at making that leap to understanding how everything works together. I understand the syntax, that's all well and good, and I pretty much get how classes and .ini files interact. As for the API, I have the entire reference as pretty decent Doxygen-style HTML output. What I'm looking for is a sort of intermediate tutorial on game creation from scratch (as opposed to modding UT3 itself), more advanced than just learning language syntax, but not yet to the level of going through the API step by step. I'm looking for some guide to the structure of the internals - how GameInfo and PlayerController interact, where Pawn comes in, etc. - a way to visualize the big picture. Does anyone have a particular favorite intermediate-level tutorials (or set of tutorials) that they used when first learning UDK?

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  • Silverlight 4 Setting background color of textbox on focus

    - by Sean Riedel
    I am trying to set the background color of a Textbox to white on focus using a Style. My enabled Textbox has a Linear Gradient background by default: <Setter Property="Background"> <Setter.Value> <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1"> <GradientStop Color="#e8e8e8" Offset="0.0" /> <GradientStop Color="#f3f3f3" Offset="0.25" /> <GradientStop Color="#f4f4f4" Offset="0.75" /> <GradientStop Color="#f4f4f4" Offset="1.0" /> </LinearGradientBrush> </Setter.Value> </Setter> I have a focus visual state defined: <VisualStateGroup x:Name="FocusStates"> <VisualState x:Name="Focused"> <Storyboard> <DoubleAnimation Storyboard.TargetName="FocusVisualElement" Storyboard.TargetProperty="Opacity" To="1" Duration="0"/> </Storyboard> </VisualState> Here is the rest of the Control Template: <Border x:Name="Border" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="1" Opacity="1" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}"> <Grid> <Border x:Name="ReadOnlyVisualElement" Opacity="0" Background="#5EC9C9C9"/> <Border x:Name="MouseOverBorder" BorderThickness="1" BorderBrush="Transparent"> <ScrollViewer x:Name="ContentElement" Padding="{TemplateBinding Padding}" BorderThickness="0" IsTabStop="False"/> </Border> </Grid> </Border> <Border x:Name="DisabledVisualElement" Background="#A5D7D7D7" BorderBrush="#A5D7D7D7" BorderThickness="{TemplateBinding BorderThickness}" Opacity="0" IsHitTestVisible="False"/> <Border x:Name="FocusVisualElement" Background="#A5ffffff" BorderBrush="#FF72c1ec" BorderThickness="{TemplateBinding BorderThickness}" Margin="1" Opacity="0" IsHitTestVisible="False"/> On the last Border tag is where I am trying to set the background to white (#ffffff). Right now I have the opacity at A5 which does turn the background white, however it also starts to obscure the text in the box. Any higher opacity makes the text invisible so I am pretty sure that setting the background of that border is not the right way to do this. Can I set the Background color of the ContentElement somehow through a StoryBoard? Thanks.

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  • Dynamically populating an ExtJS HTML editor

    - by sean.mcgary
    So Im using ExtJS for a job Im working and Im trying to dynamically populate the textarea associated with the HTML editor with data based on what a user selects from a combo box. From what Ive found, I can load the HTML editor with text using the defaultValue property. So if Im going to populate it after the page loads, can I give it something like a datastore or is there a method I can call to set the text?

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  • Win CE 6.0 client using WCF Services

    - by Sean
    We have a Win CE 6.0 device that is required to consume services that will be provided using WCF. We are attempting to reduce bandwidth usage as much as possible and with a simple test we have found that using UDP instead of HTTP saved significant data usage. I understand there are limitations regarding WCF on .NET Compact Framework 3.5 devices and was curious what people thought would be the appropriate way forward. Would it make sense to develop a custom UDP binding, and would that work for both sides? Any feedback would be appreciated. Thanks.

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  • call a class method from inside an instance method from a module mixin (rails)

    - by sean
    Curious how one would go about calling a class method from inside an instance method of a module which is included by an active record class. For example I want both user and client models to share the nuts and bolts of password encryption. # app/models class User < ActiveRecord::Base include Encrypt end class Client < ActiveRecord::Base include Encrypt end # app/models/shared/encrypt.rb module Encrypt def authenticate # I want to call the ClassMethods#encrypt_password method when @user.authenticate is run self.password_crypted == self.encrypt_password(self.password) end def self.included(base) base.extend ClassMethods end module ClassMethods def encrypt_password(password) Digest::SHA1.hexdigest(password) end end end However, this fails. Says that the class method cannot be found when the instance method calls it. I can call User.encrypt_password('password') but User.new.encrypt_password fails Any thoughts?

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  • Layout problem: scrollview inside a table, inside a custom dialog

    - by Sean
    I have a layout problem which I can't fix. I've looked through many posts on here, and mine seems to be unique enough to post a question. I've created a custom Dialog which programmatically creates a 3 row table. The top and bottom rows have text, while the middle row contains a ScrollView, which contains a LinearLayout. That LinearLayout then contains some number of views (TextView in this example). Since I'm doing this programmatically, see the XML pseudocode below, and the actual code below that. What I would like to happen, is that when the height of the contained content in the LinearLayout gets too big, the ScrollView does its job, and the header and footer TextView's are always visible. The problem is that when the dialog gets big enough, the ScrollView appears to take over the whole dialog, and my footer TextView disappears off the screen. What can I do to make sure the footer TextView never disappears, but the ScrollView can still function? See the following image links: Footer visible on the left, gone on the right: http://img690.imageshack.us/i/screenshotss.png/ <TableLayout> <TableRow> <TextView> </TableRow> <TableRow> <ScrollView> <LinearLayout> <TextView/> <TextView/> <TextView/> ... </LinearLayout> </ScrollView> </TableRow> <TableRow> <TextView> </TableRow> </TableLayout> Here's the code: public class DialogScrollTest extends Dialog { public DialogScrollTest(Context ctx){ super(ctx); setTitle(""); requestWindowFeature(Window.FEATURE_NO_TITLE); TableLayout table = new TableLayout(ctx); TableRow row; TextView text; row = new TableRow(ctx); { text = new TextView(ctx); text.setText("TestTop"); row.addView(text); } table.addView(row); row = new TableRow(ctx); { ScrollView scroll = new ScrollView(ctx); { LinearLayout linear = new LinearLayout(ctx); linear.setOrientation(LinearLayout.VERTICAL); for(int t=0; t<32; ++t){ text = new TextView(ctx); text.setText("TestScroll"); linear.addView(text); } scroll.addView(linear); } row.addView(scroll); } table.addView(row); row = new TableRow(ctx); { text = new TextView(ctx); text.setText("TestBottom"); row.addView(text); } table.addView(row); this.setContentView(table); } }

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  • nServiceBus with large XML messages

    - by Sean
    Hello, I have read about the true messaging and that instead of sending payload on the bus, it sends an identifier. In our case, we have a lot of legacy apps/services and those were designed to receive the payload of messages (xml) that is close to 4MB (close MSMQ limit). Is there a way for nService bus to handle large payload and persist messages automatically or another work-around, so that the publisher/subscriber services don't have to worry neither about the payload size, nor about how to de/re-hydrate the payload? Thank you in advance.

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  • Angle between two 2d vectors, diff between two methods?

    - by Sean Ochoa
    Hey all. I've got this code snippet, and I'm wondering why the results of the first method differ from the results of the second method, given the same input? public double AngleBetween_1(vector a, vector b) { var dotProd = a.Dot(b); var lenProd = a.Len*b.Len; var divOperation = dotProd/lenProd; return Math.Acos(divOperation) * (180.0 / Math.PI); } public double AngleBetween_2(vector a, vector b) { var dotProd = a.Dot(b); var lenProd = a.Len*b.Len; var divOperation = dotProd/lenProd; return (1/Math.Cos(divOperation)) * (180.0 / Math.PI); }

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  • Is Flash/Actionscript any safer than Javascript for persistent online game?

    - by Sean Madigan
    I'm finding lately how unsecure Javascript is when programming a game (I'm trying to do a turn based RPG and currently the battle calculations are done through Javascript which any player can cheat with of course giving themselves as much XP as they want), so I'm wondering if I were to move my battle screen to flash if this would be any more secure, or is there just as easy of a way to cheat this?

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  • Error after second spec run with rspec and autospec

    - by Sean Chambers
    After installing rspec/ZenTest and running autospec, it runs my specs the first time as expected. After making a change to one of my specs and upon running the second time I get the following results: /usr/bin/ruby1.8 /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/bin/spec --autospec /home/schambers/Projects/notebook/spec/models/user_spec.rb -O spec/spec.opts /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/formatter/progress_bar_formatter.rb:17:in `flush': Broken pipe (Errno::EPIPE) from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/formatter/progress_bar_formatter.rb:17:in `example_passed' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/reporter.rb:136:in `example_passed' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/reporter.rb:136:in `each' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/reporter.rb:136:in `example_passed' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/reporter.rb:31:in `example_finished' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/example/example_methods.rb:55:in `execute' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/example/example_group_methods.rb:214:in `run_examples' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/example/example_group_methods.rb:212:in `each' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/example/example_group_methods.rb:212:in `run_examples' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/example/example_group_methods.rb:103:in `run' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/example_group_runner.rb:23:in `run' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/example_group_runner.rb:22:in `each' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/example_group_runner.rb:22:in `run' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/options.rb:152:in `run_examples' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/lib/spec/runner/command_line.rb:9:in `run' from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.0/bin/spec:5 Has anyone run into this or know what the heck is going on here? Thanks

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  • Using Objective-C Blocks

    - by Sean
    Today I was experimenting with Objective-C's blocks so I thought I'd be clever and add to NSArray a few functional-style collection methods that I've seen in other languages: @interface NSArray (FunWithBlocks) - (NSArray *)collect:(id (^)(id obj))block; - (NSArray *)select:(BOOL (^)(id obj))block; - (NSArray *)flattenedArray; @end The collect: method takes a block which is called for each item in the array and expected to return the results of some operation using that item. The result is the collection of all of those results. (If the block returns nil, nothing is added to the result set.) The select: method will return a new array with only the items from the original that, when passed as an argument to the block, the block returned YES. And finally, the flattenedArray method iterates over the array's items. If an item is an array, it recursively calls flattenedArray on it and adds the results to the result set. If the item isn't an array, it adds the item to the result set. The result set is returned when everything is finished. So now that I had some infrastructure, I needed a test case. I decided to find all package files in the system's application directories. This is what I came up with: NSArray *packagePaths = [[[NSSearchPathForDirectoriesInDomains(NSAllApplicationsDirectory, NSAllDomainsMask, YES) collect:^(id path) { return (id)[[[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:nil] collect:^(id file) { return (id)[path stringByAppendingPathComponent:file]; }]; }] flattenedArray] select:^(id fullPath) { return [[NSWorkspace sharedWorkspace] isFilePackageAtPath:fullPath]; }]; Yep - that's all one line and it's horrid. I tried a few approaches at adding newlines and indentation to try to clean it up, but it still feels like the actual algorithm is lost in all the noise. I don't know if it's just a syntax thing or my relative in-experience with using a functional style that's the problem, though. For comparison, I decided to do it "the old fashioned way" and just use loops: NSMutableArray *packagePaths = [NSMutableArray new]; for (NSString *searchPath in NSSearchPathForDirectoriesInDomains(NSAllApplicationsDirectory, NSAllDomainsMask, YES)) { for (NSString *file in [[NSFileManager defaultManager] contentsOfDirectoryAtPath:searchPath error:nil]) { NSString *packagePath = [searchPath stringByAppendingPathComponent:file]; if ([[NSWorkspace sharedWorkspace] isFilePackageAtPath:packagePath]) { [packagePaths addObject:packagePath]; } } } IMO this version was easier to write and is more readable to boot. I suppose it's possible this was somehow a bad example, but it seems like a legitimate way to use blocks to me. (Am I wrong?) Am I missing something about how to write or structure Objective-C code with blocks that would clean this up and make it clearer than (or even just as clear as) the looped version?

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  • PHP Dev Tools (Eclipse Plugin) -- Installation Error... help?

    - by Sean Ochoa
    I have already installed WEb Tools, PyDev, and the default Eclipse installation for Ubuntu 10.04 (using "sudo apt-get install eclipe"). I'm now trying to install PHP dev tools plug-in for Eclipse, and I'm getting this error msg: Cannot complete the install because of a conflicting dependency. Software being installed: PDT SDK Feature 1.0.5.v20081126-1856 (org.eclipse.php.sdk_feature.feature.group 1.0.5.v20081126-1856) Software currently installed: Eclipse XML Editors and Tools SDK 3.1.1.v200907161031-7A228DXETAqLQFBNMuHkC8-_dRPY (org.eclipse.wst.xml_sdk.feature.feature.group 3.1.1.v200907161031-7A228DXETAqLQFBNMuHkC8-_dRPY) Only one of the following can be installed at once: Eclipse XML Editors and Tools 3.1.1.v200907161031-7H6FMbDxtkMs9OeLGF98LRhdPKeo (org.eclipse.wst.xml_ui.feature.feature.jar 3.1.1.v200907161031-7H6FMbDxtkMs9OeLGF98LRhdPKeo) Eclipse XML Editors and Tools 3.0.4.v200811211541-7F2ENnCwum8W79A1UYNgSjOcFVJg (org.eclipse.wst.xml_ui.feature.feature.jar 3.0.4.v200811211541-7F2ENnCwum8W79A1UYNgSjOcFVJg) Cannot satisfy dependency: From: PDT SDK Feature 1.0.5.v20081126-1856 (org.eclipse.php.sdk_feature.feature.group 1.0.5.v20081126-1856) To: org.eclipse.php_feature.feature.group [1.0.5.v20081126-1856] Cannot satisfy dependency: From: PDT Feature 1.0.5.v20081126-1856 (org.eclipse.php_feature.feature.group 1.0.5.v20081126-1856) To: org.eclipse.wst.feature.group [3.0.0,4.0.0) Cannot satisfy dependency: From: Web Developer Tools 3.0.4.v200811190840-7A-8l8Qqcz0HyVgjXUE-iuOYZ9ai (org.eclipse.wst.feature.group 3.0.4.v200811190840-7A-8l8Qqcz0HyVgjXUE-iuOYZ9ai) To: org.eclipse.wst.xml_ui.feature.feature.group [3.0.4.v200811211541-7F2ENnCwum8W79A1UYNgSjOcFVJg] Cannot satisfy dependency: From: Eclipse XML Editors and Tools SDK 3.1.1.v200907161031-7A228DXETAqLQFBNMuHkC8-_dRPY (org.eclipse.wst.xml_sdk.feature.feature.group 3.1.1.v200907161031-7A228DXETAqLQFBNMuHkC8-_dRPY) To: org.eclipse.wst.xml_ui.feature.feature.group [3.1.1.v200907161031-7H6FMbDxtkMs9OeLGF98LRhdPKeo] Cannot satisfy dependency: From: Eclipse XML Editors and Tools 3.0.4.v200811211541-7F2ENnCwum8W79A1UYNgSjOcFVJg (org.eclipse.wst.xml_ui.feature.feature.group 3.0.4.v200811211541-7F2ENnCwum8W79A1UYNgSjOcFVJg) To: org.eclipse.wst.xml_ui.feature.feature.jar [3.0.4.v200811211541-7F2ENnCwum8W79A1UYNgSjOcFVJg] Cannot satisfy dependency: From: Eclipse XML Editors and Tools 3.1.1.v200907161031-7H6FMbDxtkMs9OeLGF98LRhdPKeo (org.eclipse.wst.xml_ui.feature.feature.group 3.1.1.v200907161031-7H6FMbDxtkMs9OeLGF98LRhdPKeo) To: org.eclipse.wst.xml_ui.feature.feature.jar [3.1.1.v200907161031-7H6FMbDxtkMs9OeLGF98LRhdPKeo] Any ideas?

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  • Dealing with the lack of closures in Objective-C

    - by Sean Clark Hess
    Maybe it's just the fact that I've been using http://nodejs.org/ lately, but the lack of closures in Objective-C (iphone) has been really hard to work around. For example, I'm creating service classes. Each service class can have several methods, each of which makes a different URL request. I can use the delegate pattern, but that means that I have to create a new service each time I want to call a method on it (because it has to store the delegate and selector for that request, and new method calls would overwrite them). Even more difficult for me is the fact that I can't easily keep local variables around in the scope for a callback. I have to store anything I want to send back to the delegate on the service class itself, which makes it harder to have more than one method on each class. How do you pros do it? Should I just quit whining and do it another way?

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