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  • zk selecting combobox item programatically

    - by Abdul Khaliq
    Hi, I cannot set the value of combobox programatically can some one tell me what missing in the code public class Profile extends Window implements AfterCompose { @Override public void afterCompose() { Session session = Sessions.getCurrent(false); ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext( (ServletContext) getDesktop().getWebApp().getNativeContext()); UsersDao usersDao = (UsersDao) ctx.getBean("daoUsers"); User user = (User) session.getAttribute("user"); user = usersDao.getUser(user.getUsername(),user.getPassword()); Textbox username_t = (Textbox) this.getFellow("username"); Textbox password_t = (Textbox) this.getFellow("password"); Textbox conpassword_t = (Textbox) this.getFellow("con_password"); Textbox firstname_t = (Textbox) this.getFellow("firstName"); Textbox lastname_t = (Textbox) this.getFellow("lastName"); Textbox email_t = (Textbox) this.getFellow("email"); Combobox hintQuestion_t = (Combobox) this.getFellow("hintQuestion"); Textbox hintAnswer_t = (Textbox) this.getFellow("hintAnswer"); Combobox locale_t = (Combobox) this.getFellow("locale"); Combobox authority_t = (Combobox) this.getFellow("authority"); username_t.setText(user.getUsername()); firstname_t.setText(user.getUserDetails().getFirstName()); lastname_t.setText(user.getUserDetails().getLastName()); email_t.setText(user.getUserDetails().getEmail()); Comboitem selectedItem = getSelectedIndexComboboxItem(hintQuestion_t, user.getHintQuestion()); hintQuestion_t.setSelectedItem(selectedItem); hintAnswer_t.setText(user.getHintAnswer()); selectedItem = getSelectedIndexComboboxItem(locale_t, user.getUserDetails().getLocale()); locale_t.setSelectedItem(selectedItem); selectedItem = getSelectedIndexComboboxItem(authority_t, ((Authority)user.getAuthorities().toArray()[0]).getRole()); authority_t.setSelectedItem(selectedItem); } private Comboitem getSelectedIndexComboboxItem(Combobox combobox, String value) { List<Comboitem> items = combobox.getItems(); Comboitem item = items.get(0); for (int i = 0; i < items.size(); i++) { Comboitem comboitem = items.get(i); String label = (String)comboitem.getLabel(); String cval = (String)comboitem.getValue(); if ((label!=null && label.equalsIgnoreCase(value)) || (cval != null && cval.equalsIgnoreCase(value))) { item = comboitem; break; } } return item; } } // zk file <window id="profile" use="com.jf.web.zk.ui.Profile"> <tabbox id="tabbox" width="40%" > <tabs> <tab label="Account Information"/> <tab label="Personal Information"/> <tab label="Contact Details"/> </tabs> <tabpanels> <tabpanel> <grid> <rows> <row> <label value="${i18nUtils.message('user.username')}"/> <hbox> <textbox id="username" />*,a-zA-Z,0-9 </hbox> </row> <row> <label value="${i18nUtils.message('user.password')}"/> <hbox> <textbox id="password" type="password"/>* </hbox> </row> <row> <label value="${i18nUtils.message('registration.user.password.confirm')}"/> <hbox> <textbox id="con_password" type="password"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.first.name')}"/> <hbox> <textbox id="firstName" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.last.name')}"/> <hbox> <textbox id="lastName" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.email')}"/> <hbox> <textbox id="email" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.hint.question')}"/> <hbox> <combobox id="hintQuestion" onCreate='self.setSelectedIndex(1);'> <comboitem label="${i18nUtils.message('user.hint.question.possible.value1')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value2')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value3')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value4')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value5')}" /> </combobox>* </hbox> </row> <row> <label value="${i18nUtils.message('user.hint.answer')}"/> <hbox> <textbox id="hintAnswer" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.locale')}"/> <hbox> <combobox id="locale" onCreate='self.setSelectedIndex(1);self.setReadonly(true);'> <comboitem label="${i18nUtils.message('user.details.locale.en')}" value="en_US"/> <comboitem label="${i18nUtils.message('user.details.locale.bg')}" value="bg_BG"/> </combobox>* </hbox> </row> <row> <label value="${i18nUtils.message('authority.account.type')}"/> <hbox> <combobox id="authority" onCreate='self.setSelectedIndex(0);self.setReadonly(true);'> <comboitem label="${i18nUtils.message('authority.job.seeker')}" value="Job Seeker"/> <comboitem label="${i18nUtils.message('authority.employer')}" value="Employer"/> <comboitem label="${i18nUtils.message('authority.hra')}" value="Human Resource Agency"/> <comboitem label="${i18nUtils.message('authority.advertiser')}" value="Advertiser"/> </combobox>* </hbox> </row> </rows> </grid> </tabpanel> </tabpanels> </tabbox> <grid width="40%"> <rows> <row> <button label="${i18nUtils.message('bttn.save')}" onClick="save()"/> <button label="${i18nUtils.message('bttn.cancel')}" onClick="cancel()"/> </row> </rows> </grid> </window> </zk> The "getSelectedIndexComboboxItem()" does return the correct selected item but there seems no effect on the UI. Like for example the locale is set to default Bulgarian language and I need to set it to English. Abdul Khaliq

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  • Is this asking too much of a browser?

    - by Matt Ball
    I'm embedding a large array in <script> tags in my HTML, like this (nothing surprising): <script> var largeArray = [/* lots of stuff in here */]; </script> In this particular example, the array has 210,000 elements. That's well below the theoretical maximum of 231 - by 4 orders of magnitude. Here's the fun part: if I save JS source for the array to a file, that file is 44 megabytes (46,573,399 bytes, to be exact). If you want to see for yourself, you can download it from my Dropbox. (All the data in there is canned, so much of it is repeated. This will not be the case in production.) Now, I'm really not concerned about serving that much data. My server gzips its responses, so it really doesn't take all that long to get the data over the wire. However, there is a really nasty tendency for the page, once loaded, to crash the browser. I'm not testing at all in IE (this is an internal tool). My primary targets are Chrome 8 and Firefox 3.6. In Firefox, I can see a reasonably useful error in the console: Error: script stack space quota is exhausted In Chrome, I simply get the sad-tab page: Cut to the chase, already Is this really too much data for our modern, "high-performance" browsers to handle? Is there anything I can do* to gracefully handle this much data? Incidentally, I was able to get this to work (read: not crash the tab) on-and-off in Chrome. I really thought that Chrome, at least, was made of tougher stuff, but apparently I was wrong... Edit 1 @Crayon: I wasn't looking to justify why I'd like to dump this much data into the browser at once. Short version: either I solve this one (admittedly not-that-easy) problem, or I have to solve a whole slew of other problems. I'm opting for the simpler approach for now. @various: right now, I'm not especially looking for ways to actually reduce the number of elements in the array. I know I could implement Ajax paging or what-have-you, but that introduces its own set of problems for me in other regards. @Phrogz: each element looks something like this: {dateTime:new Date(1296176400000), terminalId:'terminal999', 'General___BuildVersion':'10.05a_V110119_Beta', 'SSM___ExtId':26680, 'MD_CDMA_NETLOADER_NO_BCAST___Valid':'false', 'MD_CDMA_NETLOADER_NO_BCAST___PngAttempt':0} @Will: but I have a computer with a 4-core processor, 6 gigabytes of RAM, over half a terabyte of disk space ...and I'm not even asking for the browser to do this quickly - I'm just asking for it to work at all! ? *other than the obvious: sending less data to the browser

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  • GOTO still considered harmful?

    - by Kyle Cronin
    Everyone is aware of Dijkstra's Letters to the editor: go to statement considered harmful (also here .html transcript and here .pdf) and there has been a formidable push since that time to eschew the goto statement whenever possible. While it's possible to use goto to produce unmaintainable, sprawling code, it nevertheless remains in modern programming languages. Even the advanced continuation control structure in Scheme can be described as a sophisticated goto. What circumstances warrant the use of goto? When is it best to avoid? As a followup question: C provides a pair of functions, setjmp and longjmp, that provide the ability to goto not just within the current stack frame but within any of the calling frames. Should these be considered as dangerous as goto? More dangerous? Dijkstra himself regretted that title, of which he was not responsible for. At the end of EWD1308 (also here .pdf) he wrote: Finally a short story for the record. In 1968, the Communications of the ACM published a text of mine under the title "The goto statement considered harmful", which in later years would be most frequently referenced, regrettably, however, often by authors who had seen no more of it than its title, which became a cornerstone of my fame by becoming a template: we would see all sorts of articles under the title "X considered harmful" for almost any X, including one titled "Dijkstra considered harmful". But what had happened? I had submitted a paper under the title "A case against the goto statement", which, in order to speed up its publication, the editor had changed into a "letter to the Editor", and in the process he had given it a new title of his own invention! The editor was Niklaus Wirth. A well thought out classic paper about this topic, to be matched to that of Dijkstra, is Structured Programming with go to Statements (also here .pdf), by Donald E. Knuth. Reading both helps to reestablish context and a non-dogmatic understanding of the subject. In this paper, Dijkstra's opinion on this case is reported and is even more strong: Donald E. Knuth: I believe that by presenting such a view I am not in fact disagreeing sharply with Dijkstra's ideas, since he recently wrote the following: "Please don't fall into the trap of believing that I am terribly dogmatical about [the go to statement]. I have the uncomfortable feeling that others are making a religion out of it, as if the conceptual problems of programming could be solved by a single trick, by a simple form of coding discipline!"

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  • Is it worth moving from stored procedures to linq ?

    - by Josef
    I'm looking at standardizing programming in an organisaiton. Half uses stored procedures and the other half Linq. From what i've read there is still some debate going on on this topic. My concern is that MS is trying to slip in it's own proprietry query language 'linq' to make SQL redundant. If a few years back microsoft had tried to win customers from oracle and sybase with their MSSQL database and stated that it didn't use SQL by their own proprietry query langues ie linq. I doubt many would have switched. I believe that is exactly what is happening now by introducting it into the applicaiton business layer. I have used MS for many years but there is one gripe that I have with them and that is that they change their direction a lot. By a lot I mean new releases of .net, silverlight etc are more than 30% different from previous version. So by the time you become productive a new release is on the way. As things stand now a web developer using .net would need to know either vb.net or c#, xml, xaml,javascript,html, sql and now linq. That doesn't make for good productivity in my books. My concern is that once we all start using linq MS will start changing it between releases. and it will become an ever changing landscape. I believe that 'linq to sql' has already been deprecated. At leas with SQL we are dealing with a more stable and standardized language. Are we looking at a programming revolution or a marketing campaign? As far as I know other languages like Cobol have stayed the same for years. A cobol program from 20 years ago could pick up todays code and start working on it. Could a Vb3 person work on a modern .net web app ? Would these large changes need to be made if the underlying original foundation had been sound ? I worry about following MS shaking roadmap with it's deadends and double backs. are there any architects out there who feel the same ? regards Josef

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  • Why won't jqGrid won't populate initially in Chrome

    - by Maxm007
    Hi, I've got a web page with a jqGrid that uses am xmlreader to populate itself with data that is spat out by a RoR service. The page loads fine in firefox and safari. In Chrome however I get a blank grid. Only when I change the sort order by clicking on the columns does it populate. <html> <head> <title>LocalFx</title> <link href="/stylesheets/main.css?1271423251" media="screen" rel="stylesheet" type="text/css" /> <link href="/stylesheets/redmond/jquery-ui-1.8.custom.css?1271404544" media="screen" rel="stylesheet" type="text/css" /> <link href="/stylesheets/ui.jqgrid.css?1265561560" media="screen" rel="stylesheet" type="text/css" /> <script src="/javascripts/jquery-1.3.2.min.js?1259426008" type="text/javascript"></script> <script src="/javascripts/i18n/grid.locale-en.js?1266140090" type="text/javascript"></script> <script src="/javascripts/jquery.jqGrid.min.js?1271437772" type="text/javascript"></script> <script type="text/javascript"> jQuery().ready(function() { jQuery("#list").jqGrid({ xmlReader: { root:"contracts", row:"contract", repeatitems:false, id:"id" }, jsonReader: { repeatitems:false, root:"contracts" }, datatype: 'xml', url:'http://localhost:3000/contracts/index/all.xml', mtype: 'GET', colNames:['User','B/S', 'Currency', 'Amount', 'Rate'], colModel :[ {name:'user', index:'username', width:100 , xmlmap:'user>username'} , {name:'side', index:'side', width:100 , xmlmap:'side'} , {name:'currency', index:'ccy', width:100 , xmlmap:'currency>ccy'} , {name:'amount', index:'amount', width:100 , xmlmap:'amount'}, {name:'rate', index:'rate', width:100 , xmlmap:'exchange-rate>rate'} ], pager: jQuery('#pager'), caption: 'Contracts', sortname: 'side', sortorder: "asc", viewrecords:true, rowNum:10, rowList:[10,20,30] }); $("#list").trigger("reloadGrid") }); </script> </head> <body> <table id="list" align="center" class="scroll"></table> <div id="pager" class="scroll" style="text-align:center;"></div> </body> </html> This is the xml: <contracts type="array"> <contract> <amount type="float">1000.0</amount> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <currency-id type="integer">488525179</currency-id> <id type="integer">18277852</id> <side>BUY</side> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <user-id type="integer">830138774</user-id> <exchange-rate> <contract-id type="integer">18277852</contract-id> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <denccy-id type="integer">890731696</denccy-id> <id type="integer">419011264</id> <numccy-id type="integer">488525179</numccy-id> <rate type="float">1.3</rate> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </exchange-rate> <user> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">830138774</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <username>John Doe</username> </user> <currency> <ccy>EUR</ccy> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">488525179</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </currency> </contract> <contract> <amount type="float">500.0</amount> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <currency-id type="integer">890731696</currency-id> <id type="integer">716237132</id> <side>SELL</side> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <user-id type="integer">830138774</user-id> <exchange-rate> <contract-id type="integer">716237132</contract-id> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <denccy-id type="integer">890731696</denccy-id> <id type="integer">861902380</id> <numccy-id type="integer">488525179</numccy-id> <rate type="float">1.3</rate> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </exchange-rate> <user> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">830138774</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <username>John Doe</username> </user> <currency> <ccy>GBP</ccy> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">890731696</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </currency> </contract> </contracts>

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  • Any software for pattern-matching and -rewriting source code?

    - by Steven A. Lowe
    I have some old software (in a language that's not dead but is dead to me ;-)) that implements a basic pattern-matching and -rewriting system for source code. I am considering resurrecting this code, translating it into a modern language, and open-sourcing the project as a refactoring power-tool. Before I go much further, I want to know if anything like this exists already (my google-fu is fanning air on this tonight). Here's how it works: the pattern-matching part matches source-code patterns spanning multiple lines of code using a template with binding variables, the pattern-rewriting part uses a template to rewrite the matched code, inserting the contents of the bound variables from the matching template matching and rewriting templates are associated (1:1) by a simple (unconditional) rewrite rule the software operates on the abstract syntax tree (AST) of the input application, and outputs a modified AST which can then be regenerated into new source code for example, suppose we find a bunch of while-loops that really should be for-loops. The following template will match the while-loop pattern: Template oldLoopPtrn int @cnt@ = 0; while (@cnt@ < @max@) { … @body@ ++@cnt@; } End_Template while the following template will specify the output rewrite pattern: Template newLoopPtrn for(int @cnt@ = 0; @cnt@ < @max@; @cnt@++) { @body@ } End_Template and a simple rule to associate them Rule oldLoopPtrn --> newLoopPtrn so code that looks like this int i=0; while(i<arrlen) { printf("element %d: %f\n",i,arr[i]); ++i; } gets automatically rewritten to look like this for(int i = 0; i < arrlen; i++) { printf("element %d: %f\n",i,arr[i]); } The closest thing I've seen like this is some of the code-refactoring tools, but they seem to be geared towards interactive rewriting of selected snippets, not wholesale automated changes. I believe that this kind of tool could supercharge refactoring, and would work on multiple languages (even HTML/CSS). I also believe that converting and polishing the code base would be a huge project that I simply cannot do alone in any reasonable amount of time. So, anything like this out there already? If not, any obvious features (besides rewrite-rule conditions) to consider? EDIT: The one feature of this system that I like very much is that the template patterns are fairly obvious and easy to read because they're written in the same language as the target source code, not in some esoteric mutated regex/BNF format.

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  • Scared of Calculus - Required to pass Differential Calculus as part of my Computer science major

    - by ke3pup
    Hi guys I'm finishing my Computer science degree in university but my fear of maths (lack of background knowledge) made me to leave all my maths units til' the very end which is now. i either take them on and pass or have to give up. I've passed all my programming units easily but knowing my poor maths skills won't do i've been staying clear of the maths units. I have to pass Differential Calculus and Linear Algebra first. With a help of book named "Linear Algebra: A Modern Introduction" i'm finding myself on track and i think i can pass the Linear Algebra unit. But with differential calculus i can't find a book to help me. They're either too advanced or just too simple for what i have to learn. The things i'm required to know for this units are: Set notation, the real number line, Complex numbers in cartesian form. Complex plane, modulus. Complex numbers in polar form. De Moivre’s Theorem. Complex powers and nth roots. Definition of ei? and ez for z complex. Applications to trigonometry. Revision of domain and range of a function Working in R3. Curves and surfaces. Functions of 2 variables. Level curves.Partial derivatives and tangent planes. The derivative as a difference quotient. Geometric significance of the derivative. Discussion of limit. Higher order partial derivatives. Limits of f(x,y). Continuity. Maxima and minima of f(x,y). The chain rule. Implicit differentiation. Directional derivatives and the gradient. Limit laws, l’Hoˆpital’s rule, composition law. Definition of sinh and cosh and their inverses. Taylor polynomials. The remainder term. Taylor series. Is there a book to help me get on track with the above? Being a student i can't buy too many books hence why i'm looking for a book that covers topics I need to know. The University library has a fairly limited collection which i took as loan but didn't find useful as it was too complex.

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  • CSS selectors : should I make my CSS easier to read or optimise the speed

    - by Laurent Bourgault-Roy
    As I was working on a small website, I decided to use the PageSpeed extension to check if their was some improvement I could do to make the site load faster. However I was quite surprise when it told me that my use of CSS selector was "inefficient". I was always told that you should keep the usage of the class attribute in the HTML to a minimum, but if I understand correctly what PageSpeed tell me, it's much more efficient for the browser to match directly against a class name. It make sense to me, but it also mean that I need to put more CSS classes in my HTML. It make my .css file harder to read. I usually tend to mark my CSS like this : #mainContent p.productDescription em.priceTag { ... } Which make it easy to read : I know this will affect the main content and that it affect something in a paragraph tag (so I wont start to put all sort of layout code in it) that describe a product and its something that need emphasis. However it seem I should rewrite it as .priceTag { ... } Which remove all context information about the style. And if I want to use differently formatted price tag (for example, one in a list on the sidebar and one in a paragraph), I need to use something like that .paragraphPriceTag { ... } .listPriceTag { ... } Which really annoy me since I seem to duplicate the semantic of the HTML in my classes. And that mean I can't put common style in an unqualified .priceTag { ... } and thus I need to replicate the style in both CSS rule, making it harder to make change. (Altough for that I could use multiple class selector, but IE6 dont support them) I believe making code harder to read for the sake of speed has never been really considered a very good practice . Except where it is critical, of course. This is why people use PHP/Ruby/C# etc. instead of C/assembly to code their site. It's easier to write and debug. So I was wondering if I should stick with few CSS classes and complex selector or if I should go the optimisation route and remove my fancy CSS selectors for the sake of speed? Does PageSpeed make over the top recommandation? On most modern computer, will it even make a difference?

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  • Efficiency of data structures in C99 (possibly affected by endianness)

    - by Ninefingers
    Hi All, I have a couple of questions that are all inter-related. Basically, in the algorithm I am implementing a word w is defined as four bytes, so it can be contained whole in a uint32_t. However, during the operation of the algorithm I often need to access the various parts of the word. Now, I can do this in two ways: uint32_t w = 0x11223344; uint8_t a = (w & 0xff000000) >> 24; uint8_t b = (w & 0x00ff0000) >> 16; uint8_t b = (w & 0x0000ff00) >> 8; uint8_t d = (w & 0x000000ff); However, part of me thinks that isn't particularly efficient. I thought a better way would be to use union representation like so: typedef union { struct { uint8_t d; uint8_t c; uint8_t b; uint8_t a; }; uint32_t n; } word32; Using this method I can assign word32 w = 0x11223344; then I can access the various parts as I require (w.a=11 in little endian). However, at this stage I come up against endianness issues, namely, in big endian systems my struct is defined incorrectly so I need to re-order the word prior to it being passed in. This I can do without too much difficulty. My question is, then, is the first part (various bitwise ands and shifts) efficient compared to the implementation using a union? Is there any difference between the two generally? Which way should I go on a modern, x86_64 processor? Is endianness just a red herring here? I could inspect the assembly output of course, but my knowledge of compilers is not brilliant. I would have thought a union would be more efficient as it would essentially convert to memory offsets, like so: mov eax, [r9+8] Would a compiler realise that is what happening in the bit-shift case above? If it matters, I'm using C99, specifically my compiler is clang (llvm). Thanks in advance.

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  • Out of memory exception during scrolling of listview

    - by user1761316
    I am using facebook data like postedpicture,profile picture,name,message in my listview.I am getting an OOM error while doing fast scrolling of listview. I am also having scrollviewlistener in my application that loads more data when the scrollbar reaches the bottom of the screen.I just want to know whether I need to change anything in this class. imageLoader.DisplayImage(postimage.get(position).replace(" ", "%20"), postimg) ; I am using the above line to call the method in this imageloader class to set the bitmap to imageview. Here is my imageloader class import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import java.util.Collections; import java.util.Map; import java.util.Stack; import java.util.WeakHashMap; import com.stellent.beerbro.Wall; import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; import android.graphics.drawable.BitmapDrawable; import android.util.Log; import android.widget.ImageView; public class ImageLoader { MemoryCache memoryCache=new MemoryCache(); FileCache fileCache; private Map<ImageView, String> imageViews=Collections.synchronizedMap(new WeakHashMap<ImageView, String>()); public ImageLoader(Context context){ //Make the background thead low priority. This way it will not affect the UI performance photoLoaderThread.setPriority(Thread.NORM_PRIORITY-1); fileCache=new FileCache(context); } // final int stub_id=R.drawable.stub; public void DisplayImage(String url,ImageView imageView) { imageViews.put(imageView, url); System.gc(); // Bitmap bitmap=createScaledBitmap(memoryCache.get(url), 100,100,0); Bitmap bitmap=memoryCache.get(url); // Bitmap bitmaps=bitmap.createScaledBitmap(bitmap, 0, 100, 100); if(bitmap!=null) { imageView.setBackgroundDrawable(new BitmapDrawable(bitmap)); // imageView.setImageBitmap(getRoundedCornerBitmap( bitmap, 10,70,70)); // imageView.setImageBitmap(bitmap); // Log.v("first", "first"); } else { queuePhoto(url, imageView); // Log.v("second", "second"); } } private Bitmap createScaledBitmap(Bitmap bitmap, int i, int j, int k) { // TODO Auto-generated method stub return null; } private void queuePhoto(String url, ImageView imageView) { //This ImageView may be used for other images before. So there may be some old tasks in the queue. We need to discard them. photosQueue.Clean(imageView); PhotoToLoad p=new PhotoToLoad(url, imageView); synchronized(photosQueue.photosToLoad){ photosQueue.photosToLoad.push(p); photosQueue.photosToLoad.notifyAll(); } //start thread if it's not started yet if(photoLoaderThread.getState()==Thread.State.NEW) photoLoaderThread.start(); } public Bitmap getBitmap(String url) { File f=fileCache.getFile(url); //from SD cache Bitmap b = decodeFile(f); if(b!=null) return b; //from web try { Bitmap bitmap=null; URL imageUrl = new URL(url); HttpURLConnection conn = (HttpURLConnection)imageUrl.openConnection(); conn.setConnectTimeout(30000); conn.setReadTimeout(30000); InputStream is=conn.getInputStream(); OutputStream os = new FileOutputStream(f); Utils.CopyStream(is, os); os.close(); bitmap = decodeFile(f); return bitmap; } catch (Exception ex){ ex.printStackTrace(); return null; } }//Lalit //decodes image and scales it to reduce memory consumption private Bitmap decodeFile(File f){ try { //decode image size BitmapFactory.Options o = new BitmapFactory.Options(); o.inJustDecodeBounds = true; BitmapFactory.decodeStream(new FileInputStream(f),null,o); //Find the correct scale value. It should be the power of 2. final int REQUIRED_SIZE=Wall.width; final int REQUIRED_SIZE1=Wall.height; // final int REQUIRED_SIZE=250; // int width_tmp=o.outWidth, height_tmp=o.outHeight; int scale=1; // while(o.outWidth/scale/2>=REQUIRED_SIZE && o.outHeight/scale/2>=REQUIRED_SIZE) //// scale*=2; while(true){ if(width_tmp/2<REQUIRED_SIZE && height_tmp/2<REQUIRED_SIZE1) break; width_tmp/=2; height_tmp/=2; scale*=2; } //decode with inSampleSize BitmapFactory.Options o2 = new BitmapFactory.Options(); o2.inSampleSize=scale; // o2.inSampleSize=2; return BitmapFactory.decodeStream(new FileInputStream(f), null, o2); } catch (FileNotFoundException e) {} return null; } //Task for the queue private class PhotoToLoad { public String url; public ImageView imageView; public PhotoToLoad(String u, ImageView i){ url=u; imageView=i; } } PhotosQueue photosQueue=new PhotosQueue(); public void stopThread() { photoLoaderThread.interrupt(); } //stores list of photos to download class PhotosQueue { private Stack<PhotoToLoad> photosToLoad=new Stack<PhotoToLoad>(); //removes all instances of this ImageView public void Clean(ImageView image) { for(int j=0 ;j<photosToLoad.size();){ if(photosToLoad.get(j).imageView==image) photosToLoad.remove(j); else ++j; } } } class PhotosLoader extends Thread { public void run() { try { while(true) { //thread waits until there are any images to load in the queue if(photosQueue.photosToLoad.size()==0) synchronized(photosQueue.photosToLoad){ photosQueue.photosToLoad.wait(); } if(photosQueue.photosToLoad.size()!=0) { PhotoToLoad photoToLoad; synchronized(photosQueue.photosToLoad){ photoToLoad=photosQueue.photosToLoad.pop(); } Bitmap bmp=getBitmap(photoToLoad.url); memoryCache.put(photoToLoad.url, bmp); String tag=imageViews.get(photoToLoad.imageView); if(tag!=null && tag.equals(photoToLoad.url)){ BitmapDisplayer bd=new BitmapDisplayer(bmp, photoToLoad.imageView); Activity a=(Activity)photoToLoad.imageView.getContext(); a.runOnUiThread(bd); } } if(Thread.interrupted()) break; } } catch (InterruptedException e) { //allow thread to exit } } } PhotosLoader photoLoaderThread=new PhotosLoader(); //Used to display bitmap in the UI thread class BitmapDisplayer implements Runnable { Bitmap bitmap; ImageView imageView; public BitmapDisplayer(Bitmap b, ImageView i){bitmap=b;imageView=i;} public void run() { if(bitmap!=null) imageView.setBackgroundDrawable(new BitmapDrawable(bitmap)); } } public void clearCache() { memoryCache.clear(); fileCache.clear(); } public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int pixels,int width,int height) { Bitmap output = Bitmap.createBitmap(width,height, Config.ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xff424242; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); final RectF rectF = new RectF(rect); final float roundPx = pixels; paint.setAntiAlias(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(color); canvas.drawRoundRect(rectF, roundPx, roundPx, paint); paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN)); canvas.drawBitmap(bitmap, rect, rect, paint); return output; } }

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  • Constraint Satisfaction Problem

    - by Carl Smotricz
    I'm struggling my way through Artificial Intelligence: A Modern Approach in order to alleviate my natural stupidity. In trying to solve some of the exercises, I've come up against the "Who Owns the Zebra" problem, Exercise 5.13 in Chapter 5. This has been a topic here on SO but the responses mostly addressed the question "how would you solve this if you had a free choice of problem solving software available?" I accept that Prolog is a very appropriate programming language for this kind of problem, and there are some fine packages available, e.g. in Python as shown by the top-ranked answer and also standalone. Alas, none of this is helping me "tough it out" in a way as outlined by the book. The book appears to suggest building a set of dual or perhaps global constraints, and then implementing some of the algorithms mentioned to find a solution. I'm having a lot of trouble coming up with a set of constraints suitable for modelling the problem. I'm studying this on my own so I don't have access to a professor or TA to get me over the hump - this is where I'm asking for your help. I see little similarity to the examples in the chapter. I was eager to build dual constraints and started out by creating (the logical equivalent of) 25 variables: nationality1, nationality2, nationality3, ... nationality5, pet1, pet2, pet3, ... pet5, drink1 ... drink5 and so on, where the number was indicative of the house's position. This is fine for building the unary constraints, e.g. The Norwegian lives in the first house: nationality1 = { :norway }. But most of the constraints are a combination of two such variables through a common house number, e.g. The Swede has a dog: nationality[n] = { :sweden } AND pet[n] = { :dog } where n can range from 1 to 5, obviously. Or stated another way: nationality1 = { :sweden } AND pet1 = { :dog } XOR nationality2 = { :sweden } AND pet2 = { :dog } XOR nationality3 = { :sweden } AND pet3 = { :dog } XOR nationality4 = { :sweden } AND pet4 = { :dog } XOR nationality5 = { :sweden } AND pet5 = { :dog } ...which has a decidedly different feel to it than the "list of tuples" advocated by the book: ( X1, X2, X3 = { val1, val2, val3 }, { val4, val5, val6 }, ... ) I'm not looking for a solution per se; I'm looking for a start on how to model this problem in a way that's compatible with the book's approach. Any help appreciated.

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  • MySQL table organization and optimization (Rails)

    - by aguynamedloren
    I've been learning Ruby on Rails over the past few months with no prior programming experience. Lately, I've been thinking about database optimization and table organization. I know there are great books on the subject, but I typically learn by example / as I go. Here's a hypothetical situation: Let's say I am building a social network for a niche community with 250,000 members (users). The users have the ability to attend events. Let's say there are 50,000 past/present/future events. Much like Facebook events, a user can attend any number of events and an event can have any number of attendees. In the database, there would be a table for users and a table for events. Somehow I would have to create an association between the users and events. I could create an "events" column in the users table such that each user row would contain a hash of event IDs, or I could create an "attendees" column in the events table such that each event row would contain a hash of user IDs. Neither of these solutions seem ideal, however. On a users profile page, I want to display the list of events they are associated with, which would require scanning the 50,000 event rows for the user ID of said user if I include an "attendees" column in the events table. Likewise, on an event page, I want to display a list of attendees for the event, which would require scanning the 250,000 user rows for the event ID of said event if I include an "events" column in the users table. Option 3 would be to create a third table that contains the attendee information for each and every event - but I don't see how this would solve any problems. Are these non-issues? Rails makes accessing all of this information easy, but I guess I'm worried about scale. It is entirely possible that I am under-estimating the speed and processing power of modern databases / servers / etc. How long would it take to scan 250,000 user rows for specific event IDs - 10ms? 100ms? 1,000ms? I guess that's not that bad. Am I just over-thinking this?

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  • How to customize and reuse a DataGridColumnHeader style?

    - by instcode
    Hi all, I'm trying to customize the column headers of a DataGrid to show sub-column headers as in the following screenshot: I've made a style for 2 sub-column as in the following XAML: <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data" xmlns:primitives="clr-namespace:System.Windows.Controls.Primitives;assembly=System.Windows.Controls.Data" xmlns:sl="clr-namespace:UI" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" x:Class="UI.ColumnHeaderGrid" mc:Ignorable="d"> <UserControl.Resources> <Style x:Key="SplitColumnHeaderStyle" TargetType="primitives:DataGridColumnHeader"> <Setter Property="Foreground" Value="#FF000000"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="IsTabStop" Value="False"/> <Setter Property="SeparatorBrush" Value="#FFC9CACA"/> <Setter Property="Padding" Value="4"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="primitives:DataGridColumnHeader"> <Grid x:Name="Root"> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <Rectangle x:Name="BackgroundRectangle" Fill="#FF1F3B53" Stretch="Fill" Grid.ColumnSpan="2"/> <Rectangle x:Name="BackgroundGradient" Stretch="Fill" Grid.ColumnSpan="2"> <Rectangle.Fill> <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0"> <GradientStop Color="#FCFFFFFF" Offset="0.015"/> <GradientStop Color="#F7FFFFFF" Offset="0.375"/> <GradientStop Color="#E5FFFFFF" Offset="0.6"/> <GradientStop Color="#D1FFFFFF" Offset="1"/> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition Width="1"/> <ColumnDefinition/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition/> <RowDefinition/> <RowDefinition/> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Grid.ColumnSpan="3" Text="Headers" TextAlignment="Center"/> <Rectangle Grid.Row="1" Grid.ColumnSpan="3" Fill="{TemplateBinding SeparatorBrush}" Height="1"/> <TextBlock Grid.Row="2" Grid.Column="0" Text="Header 1" TextAlignment="Center"/> <Rectangle Grid.Row="2" Grid.Column="1" Fill="{TemplateBinding SeparatorBrush}" Width="1"/> <TextBlock Grid.Row="2" Grid.Column="2" Text="Header 2" TextAlignment="Center"/> <Path x:Name="SortIcon" Grid.Column="2" Fill="#FF444444" Stretch="Uniform" HorizontalAlignment="Left" Margin="4,0,0,0" VerticalAlignment="Center" Width="8" Opacity="0" RenderTransformOrigin=".5,.5" Data="F1 M -5.215,6.099L 5.215,6.099L 0,0L -5.215,6.099 Z "/> </Grid> <Rectangle x:Name="VerticalSeparator" Fill="{TemplateBinding SeparatorBrush}" VerticalAlignment="Stretch" Width="1" Visibility="{TemplateBinding SeparatorVisibility}" Grid.Column="1"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> </UserControl.Resources> <data:DataGrid x:Name="LayoutRoot"> <data:DataGrid.Columns> <data:DataGridTemplateColumn HeaderStyle="{StaticResource SplitColumnHeaderStyle}"> <data:DataGridTemplateColumn.CellTemplate> <DataTemplate> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition/> </Grid.ColumnDefinitions> <Border Grid.Column="0" BorderBrush="#FFC9CACA" BorderThickness="0,0,0,0"> <TextBlock Grid.Column="0" Text="{Binding GridData.Column1}"/> </Border> <Border Grid.Column="1" BorderBrush="#FFC9CACA" BorderThickness="1,0,0,0"> <TextBlock Grid.Column="0" Text="{Binding GridData.Column2}"/> </Border> </Grid> </DataTemplate> </data:DataGridTemplateColumn.CellTemplate> </data:DataGridTemplateColumn> </data:DataGrid.Columns> </data:DataGrid> Now I want to reuse & extend this style to support 2-6 sub-column headers but I don't know if there is a way to do this, like ContentPresenter "overriding": <Style x:Key="SplitColumnHeaderStyle" TargetType="primitives:DataGridColumnHeader"> <Setter property="Template"> <Setter.Value> ... <ContentPresenter Content="{TemplateBinding Content}".../> ... </Setter.Value> </Setter> </Style> <Style x:Key="TwoSubColumnHeaderStyle" BasedOn="SplitColumnHeaderStyle"> <Setter property="Content"> <Setter.Value> <Grid 2x2.../> </Setter.Value> </Setter> </Style> <Style x:Key="ThreeSubColumnHeaderStyle" BasedOn="SplitColumnHeaderStyle"> <Setter property="Content"> <Setter.Value> <Grid 2x3.../> </Setter.Value> </Setter> </Style> Anyway, please help me on these issues: Given the template above, how to support more sub-column headers without having to create new new new new template for each? Assume that the issue above is solved. How could I attach column names outside the styles? I see that some parts, properties & visualization rules in the XAML are just copies from the original Silverlight component's style, i.e. BackgroundGradient, BackgroundRectangle, VisualStateManager... They must be there in order to support default behaviors or effects but... does anyone know how to remove them, but keep all the default behaviors/effects? Please be specific because I'm just getting start with C# & Silverlight. Thanks.

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  • Help choosing authentication method

    - by Dima
    I need to choose an authentication method for an application installed and integrated in customers environment. There are two types of environments - windows and linux/unix. Application is user based, no web stuff, pure Java. The requirement is to authenticate users which will use my application against customer provided user base. Meaning, customer installs my app, but uses his own users to grant or deny access to my app. Typical, right? I have three options to consider and I need to pick up the one which would be a) the most flexible to cover most common modern environments and b) would take least effort while stay robust and standard. Option (1) - Authenticate locally managing user credentials in some local storage, e.g. file. Customer would then add his users to my application and it will then check the passwords. Simple, clumsy but would work. Customers would have to punch every user they want to grant access to my app using some UI we will have to provide. Lots of work for me, headache to the customer. Option (2) - Use LDAP authentication. Customers would tell my app where to look for users and I will walk their directory resolving names into user names and trying to bind with found password. This is better approach IMO, but more fragile because I will have to walk an unknown directory structure and who knows if this will be permitted everywhere. Would be harder to test since there are many LDAP implementation out there, last thing I want is drowning in this voodoo. Option(3) - Use plain Kerberos authentication. Customers would tell my app what realm (domain) and which KDC (key distribution center) to use. In ideal world these two parameters would be all I need to set while customers could use their own administration tools to configure domain and kdc. My application would simply delegate user credentials to this third party (using JAAS or Spring security) and consider success when third party is happy with them. I personally prefer #3, but not sure what surprises I might face. Would this cover windows and *nix systems entirely? Is there another option to consider?

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  • IOException: Unable To Delete Images Due To File Lock

    - by Arslan Pervaiz
    I am Unable To Delete Image File From My Server Path It Gaves Error That The Process Cannot Access The File "FileName" Because it is being Used By Another Process. I Tried Many Methods But Still All In Vain. Please Help me Out in This Issue. Here is My Code Snippet. using System; using System.Data; using System.Web; using System.Data.SqlClient; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Globalization; using System.Web.Security; using System.Text; using System.DirectoryServices; using System.Collections; using System.IO; using System.Drawing; using System.Drawing.Imaging; using System.Drawing.Drawing2D; //============ Main Block ================= byte[] data = (byte[])ds.Tables[0].Rows[0][0]; MemoryStream ms = new MemoryStream(data); Image returnImage = Image.FromStream(ms); returnImage.Save(Server.MapPath(".\\TmpImages\\SavedImage.jpg"), System.Drawing.Imaging.ImageFormat.Jpeg); returnImage.Dispose(); \\ I Tried this Dispose Method To Unlock The File But Nothing Done. ms.Close(); \\ I Tried The Memory Stream Close Method Also But Its Also Not Worked For Me. watermark(); \\ Here is My Water Mark Method That Print Water Mark Image on My Saved Image (Image That is Converted From Byte Array) DeleteImages(); \\ Here is My Delete Method That I Call To Delete The Images //===== ==== My Delete Method To Delete Files================== public void DeleteImages() { try { File.Delete(Server.MapPath(".\\TmpImages\\WaterMark.jpg")); \\This Image Deleted Fine. File.Delete(Server.MapPath(".\\TmpImages\\SavedImage.jpg")); \\ Exception Thrown On Deleting of This Image. } catch (Exception ex) { LogManager.LogException(ex, "Error in Deleting Images."); Master.ShowMessage(ex.Message, true); } } \ ==== Method Declartion That Make Watermark of One Image On Another Image.======= public void watermark() { //create a image object containing the photograph to watermark Image imgPhoto = Image.FromFile(Server.MapPath(".\\TmpImages\\SavedImage.jpg")); int phWidth = imgPhoto.Width; int phHeight = imgPhoto.Height; //create a Bitmap the Size of the original photograph Bitmap bmPhoto = new Bitmap(phWidth, phHeight, PixelFormat.Format24bppRgb); bmPhoto.SetResolution(imgPhoto.HorizontalResolution, imgPhoto.VerticalResolution); //load the Bitmap into a Graphics object Graphics grPhoto = Graphics.FromImage(bmPhoto); //create a image object containing the watermark Image imgWatermark = new Bitmap(Server.MapPath(".\\TmpImages\\PrintasWatermark.jpg")); int wmWidth = imgWatermark.Width; int wmHeight = imgWatermark.Height; //Set the rendering quality for this Graphics object grPhoto.SmoothingMode = SmoothingMode.AntiAlias; //Draws the photo Image object at original size to the graphics object. grPhoto.DrawImage( imgPhoto, // Photo Image object new Rectangle(0, 0, phWidth, phHeight), // Rectangle structure 0, // x-coordinate of the portion of the source image to draw. 0, // y-coordinate of the portion of the source image to draw. phWidth, // Width of the portion of the source image to draw. phHeight, // Height of the portion of the source image to draw. GraphicsUnit.Pixel); // Units of measure //------------------------------------------------------- //to maximize the size of the Copyright message we will //test multiple Font sizes to determine the largest posible //font we can use for the width of the Photograph //define an array of point sizes you would like to consider as possiblities //------------------------------------------------------- //Define the text layout by setting the text alignment to centered StringFormat StrFormat = new StringFormat(); StrFormat.Alignment = StringAlignment.Center; //define a Brush which is semi trasparent black (Alpha set to 153) SolidBrush semiTransBrush2 = new SolidBrush(Color.FromArgb(153, 0, 0, 0)); //define a Brush which is semi trasparent white (Alpha set to 153) SolidBrush semiTransBrush = new SolidBrush(Color.FromArgb(153, 255, 255, 255)); //------------------------------------------------------------ //Step #2 - Insert Watermark image //------------------------------------------------------------ //Create a Bitmap based on the previously modified photograph Bitmap Bitmap bmWatermark = new Bitmap(bmPhoto); bmWatermark.SetResolution(imgPhoto.HorizontalResolution, imgPhoto.VerticalResolution); //Load this Bitmap into a new Graphic Object Graphics grWatermark = Graphics.FromImage(bmWatermark); //To achieve a transulcent watermark we will apply (2) color //manipulations by defineing a ImageAttributes object and //seting (2) of its properties. ImageAttributes imageAttributes = new ImageAttributes(); //The first step in manipulating the watermark image is to replace //the background color with one that is trasparent (Alpha=0, R=0, G=0, B=0) //to do this we will use a Colormap and use this to define a RemapTable ColorMap colorMap = new ColorMap(); //My watermark was defined with a background of 100% Green this will //be the color we search for and replace with transparency colorMap.OldColor = Color.FromArgb(255, 0, 255, 0); colorMap.NewColor = Color.FromArgb(0, 0, 0, 0); ColorMap[] remapTable = { colorMap }; imageAttributes.SetRemapTable(remapTable, ColorAdjustType.Bitmap); //The second color manipulation is used to change the opacity of the //watermark. This is done by applying a 5x5 matrix that contains the //coordinates for the RGBA space. By setting the 3rd row and 3rd column //to 0.3f we achive a level of opacity float[][] colorMatrixElements = { new float[] {1.0f, 0.0f, 0.0f, 0.0f, 0.0f}, new float[] {0.0f, 1.0f, 0.0f, 0.0f, 0.0f}, new float[] {0.0f, 0.0f, 1.0f, 0.0f, 0.0f}, new float[] {0.0f, 0.0f, 0.0f, 0.3f, 0.0f}, new float[] {0.0f, 0.0f, 0.0f, 0.0f, 1.0f}}; ColorMatrix wmColorMatrix = new ColorMatrix(colorMatrixElements); imageAttributes.SetColorMatrix(wmColorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap); //For this example we will place the watermark in the upper right //hand corner of the photograph. offset down 10 pixels and to the //left 10 pixles int xPosOfWm = ((phWidth - wmWidth) - 10); int yPosOfWm = 10; grWatermark.DrawImage(imgWatermark, new Rectangle(xPosOfWm, yPosOfWm, wmWidth, wmHeight), //Set the detination Position 0, // x-coordinate of the portion of the source image to draw. 0, // y-coordinate of the portion of the source image to draw. wmWidth, // Watermark Width wmHeight, // Watermark Height GraphicsUnit.Pixel, // Unit of measurment imageAttributes); //ImageAttributes Object //Replace the original photgraphs bitmap with the new Bitmap imgPhoto = bmWatermark; grPhoto.Dispose(); grWatermark.Dispose(); //save new image to file system. imgPhoto.Save(Server.MapPath(".\\TmpImages\\WaterMark.jpg"), ImageFormat.Jpeg); imgPhoto.Dispose(); imgWatermark.Dispose(); }

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  • zk selecting combobox item programatically

    - by Abdul Khaliq
    I cannot set the value of combobox programatically can some one tell me what missing in the code public class Profile extends Window implements AfterCompose { @Override public void afterCompose() { Session session = Sessions.getCurrent(false); ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext( (ServletContext) getDesktop().getWebApp().getNativeContext()); UsersDao usersDao = (UsersDao) ctx.getBean("daoUsers"); User user = (User) session.getAttribute("user"); user = usersDao.getUser(user.getUsername(),user.getPassword()); Textbox username_t = (Textbox) this.getFellow("username"); Textbox password_t = (Textbox) this.getFellow("password"); Textbox conpassword_t = (Textbox) this.getFellow("con_password"); Textbox firstname_t = (Textbox) this.getFellow("firstName"); Textbox lastname_t = (Textbox) this.getFellow("lastName"); Textbox email_t = (Textbox) this.getFellow("email"); Combobox hintQuestion_t = (Combobox) this.getFellow("hintQuestion"); Textbox hintAnswer_t = (Textbox) this.getFellow("hintAnswer"); Combobox locale_t = (Combobox) this.getFellow("locale"); Combobox authority_t = (Combobox) this.getFellow("authority"); username_t.setText(user.getUsername()); firstname_t.setText(user.getUserDetails().getFirstName()); lastname_t.setText(user.getUserDetails().getLastName()); email_t.setText(user.getUserDetails().getEmail()); Comboitem selectedItem = getSelectedIndexComboboxItem(hintQuestion_t, user.getHintQuestion()); hintQuestion_t.setSelectedItem(selectedItem); hintAnswer_t.setText(user.getHintAnswer()); selectedItem = getSelectedIndexComboboxItem(locale_t, user.getUserDetails().getLocale()); locale_t.setSelectedItem(selectedItem); selectedItem = getSelectedIndexComboboxItem(authority_t, ((Authority)user.getAuthorities().toArray()[0]).getRole()); authority_t.setSelectedItem(selectedItem); } private Comboitem getSelectedIndexComboboxItem(Combobox combobox, String value) { List<Comboitem> items = combobox.getItems(); Comboitem item = items.get(0); for (int i = 0; i < items.size(); i++) { Comboitem comboitem = items.get(i); String label = (String)comboitem.getLabel(); String cval = (String)comboitem.getValue(); if ((label!=null && label.equalsIgnoreCase(value)) || (cval != null && cval.equalsIgnoreCase(value))) { item = comboitem; break; } } return item; } } // zk file <window id="profile" use="com.jf.web.zk.ui.Profile"> <tabbox id="tabbox" width="40%" > <tabs> <tab label="Account Information"/> <tab label="Personal Information"/> <tab label="Contact Details"/> </tabs> <tabpanels> <tabpanel> <grid> <rows> <row> <label value="${i18nUtils.message('user.username')}"/> <hbox> <textbox id="username" />*,a-zA-Z,0-9 </hbox> </row> <row> <label value="${i18nUtils.message('user.password')}"/> <hbox> <textbox id="password" type="password"/>* </hbox> </row> <row> <label value="${i18nUtils.message('registration.user.password.confirm')}"/> <hbox> <textbox id="con_password" type="password"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.first.name')}"/> <hbox> <textbox id="firstName" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.last.name')}"/> <hbox> <textbox id="lastName" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.email')}"/> <hbox> <textbox id="email" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.hint.question')}"/> <hbox> <combobox id="hintQuestion" onCreate='self.setSelectedIndex(1);'> <comboitem label="${i18nUtils.message('user.hint.question.possible.value1')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value2')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value3')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value4')}" /> <comboitem label="${i18nUtils.message('user.hint.question.possible.value5')}" /> </combobox>* </hbox> </row> <row> <label value="${i18nUtils.message('user.hint.answer')}"/> <hbox> <textbox id="hintAnswer" type="text"/>* </hbox> </row> <row> <label value="${i18nUtils.message('user.details.locale')}"/> <hbox> <combobox id="locale" onCreate='self.setSelectedIndex(1);self.setReadonly(true);'> <comboitem label="${i18nUtils.message('user.details.locale.en')}" value="en_US"/> <comboitem label="${i18nUtils.message('user.details.locale.bg')}" value="bg_BG"/> </combobox>* </hbox> </row> <row> <label value="${i18nUtils.message('authority.account.type')}"/> <hbox> <combobox id="authority" onCreate='self.setSelectedIndex(0);self.setReadonly(true);'> <comboitem label="${i18nUtils.message('authority.job.seeker')}" value="Job Seeker"/> <comboitem label="${i18nUtils.message('authority.employer')}" value="Employer"/> <comboitem label="${i18nUtils.message('authority.hra')}" value="Human Resource Agency"/> <comboitem label="${i18nUtils.message('authority.advertiser')}" value="Advertiser"/> </combobox>* </hbox> </row> </rows> </grid> </tabpanel> </tabpanels> </tabbox> <grid width="40%"> <rows> <row> <button label="${i18nUtils.message('bttn.save')}" onClick="save()"/> <button label="${i18nUtils.message('bttn.cancel')}" onClick="cancel()"/> </row> </rows> </grid> </window> </zk> The "getSelectedIndexComboboxItem()" does return the correct selected item but there seems no effect on the UI. Like for example the locale is set to default Bulgarian language and I need to set it to English. Abdul Khaliq

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  • How are you using IronPython?

    - by Will Dean
    I'm keen to drink some modern dynamic language koolaid, so I've believed all the stuff on Michael Foord's blog and podcasts, I've bought his book (and read some of it), and I added an embedded IPy runtime to a large existing app a year or so ago (though that was for someone else and I didn't really use it myself). Now I need to do some fairly simple code generation stuff, where I'm going to call a few methods on a few .net objects (custom, C#-authored objects), create a few strings, write some files, etc. The experience of trying this leaves me feeling like the little boy who thinks he's the only one who can see that The Emperor has no clothes on. If you're using IronPython, I'd really appreciate knowing how you deal with the following aspects of it: Code editing - do you use the .NET framework without Intellisense? Refactoring - I know a load of 'refactoring' is about working around language-related busywork, so if Python is sufficiently lightweight then we won't need that, But things like renames seem to me to be essential to iteratively developing quality code regardless of language. Crippling startup time - One of the things which is supposed to be good about interpreted languages is the lack of compile time leading to fast interactive development. Unfortunately I can compile a C# application and launch it quicker than IPy can start up. Interactive hacking - the IPy console/repl is supposed to be good for this, but I haven't found a good way to take the code you've interactively arrived at and persist it into a file - cut and paste from the console is fairly miserable. And the console seems to hold references to .NET assemblies you've imported, so you have to quit it and restart it if you're working on the C# stuff as well. Hacking on C# in something like LinqPad seems a much faster and easier way to try things out (and has proper Intellisense). Do you use the console? Debugging - what's the story here? I know someone on the IPy team is working on a command-line hobby-project, but let's just say I'm not immediately attracted to a command line debugger. I don't really need a debugger from little Python scripts, but I would if I were to use IPy for scripting unit tests, for example. Unit testing - I can see that dynamic languages could be great for this, but is there any IDE test-runner integration (like for Resharper, etc). The Foord book has a chapter about this, which I'll admit I have not yet read properly, but it does seem to involve driving a console-mode test-runner from the command prompt, which feels to be an enormous step back from using an integrated test runner like TestDriven.net or Resharper. I really want to believe in this stuff, so I am still working on the assumption that I've missed something. I would really like to know how other people are dealing with IPy, particularly if they're doing it in a way which doesn't feel like we've just lost 15 years'-worth of tool development.

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  • how to implement a "soft barrier" in multithreaded c++

    - by Jason
    I have some multithreaded c++ code with the following structure: do_thread_specific_work(); update_shared_variables(); //checkpoint A do_thread_specific_work_not_modifying_shared_variables(); //checkpoint B do_thread_specific_work_requiring_all_threads_have_updated_shared_variables(); What follows checkpoint B is work that could have started if all threads have reached only checkpoint A, hence my notion of a "soft barrier". Typically multithreading libraries only provide "hard barriers" in which all threads must reach some point before any can continue. Obviously a hard barrier could be used at checkpoint B. Using a soft barrier can lead to better execution time, especially since the work between checkpoints A and B may not be load-balanced between the threads (i.e. 1 slow thread who has reached checkpoint A but not B could be causing all the others to wait at the barrier just before checkpoint B). I've tried using atomics to synchronize things and I know with 100% certainty that is it NOT guaranteed to work. For example using openmp syntax, before the parallel section start with: shared_thread_counter = num_threads; //known at compile time #pragma omp flush Then at checkpoint A: #pragma omp atomic shared_thread_counter--; Then at checkpoint B (using polling): #pragma omp flush while (shared_thread_counter > 0) { usleep(1); //can be removed, but better to limit memory bandwidth #pragma omp flush } I've designed some experiments in which I use an atomic to indicate that some operation before it is finished. The experiment would work with 2 threads most of the time but consistently fail when I have lots of threads (like 20 or 30). I suspect this is because of the caching structure of modern CPUs. Even if one thread updates some other value before doing the atomic decrement, it is not guaranteed to be read by another thread in that order. Consider the case when the other value is a cache miss and the atomic decrement is a cache hit. So back to my question, how to CORRECTLY implement this "soft barrier"? Is there any built-in feature that guarantees such functionality? I'd prefer openmp but I'm familiar with most of the other common multithreading libraries. As a workaround right now, I'm using a hard barrier at checkpoint B and I've restructured my code to make the work between checkpoint A and B automatically load-balancing between the threads (which has been rather difficult at times). Thanks for any advice/insight :)

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  • Why won't jqGrid populate initially in Chrome

    - by Maxm007
    Hi, I've got a web page with a jqGrid that uses am xmlreader to populate itself with data that is spat out by a RoR service. The page loads fine in firefox and safari. In Chrome however I get a blank grid. Only when I change the sort order by clicking on the columns does it populate. <html> <head> <title>LocalFx</title> <link href="/stylesheets/main.css?1271423251" media="screen" rel="stylesheet" type="text/css" /> <link href="/stylesheets/redmond/jquery-ui-1.8.custom.css?1271404544" media="screen" rel="stylesheet" type="text/css" /> <link href="/stylesheets/ui.jqgrid.css?1265561560" media="screen" rel="stylesheet" type="text/css" /> <script src="/javascripts/jquery-1.3.2.min.js?1259426008" type="text/javascript"></script> <script src="/javascripts/i18n/grid.locale-en.js?1266140090" type="text/javascript"></script> <script src="/javascripts/jquery.jqGrid.min.js?1271437772" type="text/javascript"></script> <script type="text/javascript"> jQuery().ready(function() { jQuery("#list").jqGrid({ xmlReader: { root:"contracts", row:"contract", repeatitems:false, id:"id" }, jsonReader: { repeatitems:false, root:"contracts" }, datatype: 'xml', url:'http://localhost:3000/contracts/index/all.xml', mtype: 'GET', colNames:['User','B/S', 'Currency', 'Amount', 'Rate'], colModel :[ {name:'user', index:'username', width:100 , xmlmap:'user>username'} , {name:'side', index:'side', width:100 , xmlmap:'side'} , {name:'currency', index:'ccy', width:100 , xmlmap:'currency>ccy'} , {name:'amount', index:'amount', width:100 , xmlmap:'amount'}, {name:'rate', index:'rate', width:100 , xmlmap:'exchange-rate>rate'} ], pager: jQuery('#pager'), caption: 'Contracts', sortname: 'side', sortorder: "asc", viewrecords:true, rowNum:10, rowList:[10,20,30] }); $("#list").trigger("reloadGrid") }); </script> </head> <body> <table id="list" align="center" class="scroll"></table> <div id="pager" class="scroll" style="text-align:center;"></div> </body> </html> This is the xml: <contracts type="array"> <contract> <amount type="float">1000.0</amount> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <currency-id type="integer">488525179</currency-id> <id type="integer">18277852</id> <side>BUY</side> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <user-id type="integer">830138774</user-id> <exchange-rate> <contract-id type="integer">18277852</contract-id> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <denccy-id type="integer">890731696</denccy-id> <id type="integer">419011264</id> <numccy-id type="integer">488525179</numccy-id> <rate type="float">1.3</rate> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </exchange-rate> <user> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">830138774</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <username>John Doe</username> </user> <currency> <ccy>EUR</ccy> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">488525179</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </currency> </contract> <contract> <amount type="float">500.0</amount> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <currency-id type="integer">890731696</currency-id> <id type="integer">716237132</id> <side>SELL</side> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <user-id type="integer">830138774</user-id> <exchange-rate> <contract-id type="integer">716237132</contract-id> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <denccy-id type="integer">890731696</denccy-id> <id type="integer">861902380</id> <numccy-id type="integer">488525179</numccy-id> <rate type="float">1.3</rate> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </exchange-rate> <user> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">830138774</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> <username>John Doe</username> </user> <currency> <ccy>GBP</ccy> <created-at type="datetime">2010-04-16T13:59:40Z</created-at> <id type="integer">890731696</id> <updated-at type="datetime">2010-04-16T13:59:40Z</updated-at> </currency> </contract> </contracts>

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  • c++ class member functions selected by traits

    - by Jive Dadson
    I am reluctant to say I can't figure this out, but I can't figure this out. I've googled and searched stackoverflow, and come up empty. The abstract, and possibly overly vague form of the question is, how can I use the traits-pattern to instantiate non-virtual member functions? The question came up while modernizing a set of multivariate function optimizers that I wrote more than 10 years ago. The optimizers all operate by selecting a straight-line path through the parameter space away from the current best point (the "update"), then finding a better point on that line (the "line search"), then testing for the "done" condition, and if not done, iterating. There are different methods for doing the update, the line-search, and conceivably for the done test, and other things. Mix and match. Different update formulae require different state-variable data. For example, the LMQN update requires a vector, and the BFGS update requires a matrix. If evaluating gradients is cheap, the line-search should do so. If not, it should use function evaluations only. Some methods require more accurate line-searches than others. Those are just some examples. The original version instatiates several of the combinations by means of virtual functions. Some traits are selected by setting mode bits. Yuck. It would be trivial to define the traits with #define's and the member functions with #ifdef's and macros. But that's so twenty years ago. It bugs me that I cannot figure out a whiz-bang modern way. If there were only one trait that varied, I could use the curiously recurring template pattern. But I see no way to extend that to arbitrary combinations of traits. I tried doing it using boost::enable_if, etc.. The specialized state info was easy. I managed to get the functions done, but only by resorting to non-friend external functions that have the this-pointer as a parameter. I never even figured out how to make the functions friends, much less member functions. Perhaps tag-dispatch is the key. I haven't gotten very deeply into that. Surely it's possible, right? If so, what is best practice?

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  • Moving a unit precisely along a path in x,y coordinates

    - by Adam Eberbach
    I am playing around with a strategy game where squads move around a map. Each turn a certain amount of movement is allocated to a squad and if the squad has a destination the points are applied each turn until the destination is reached. Actual distance is used so if a squad moves one position in the x or y direction it uses one point, but moving diagonally takes ~1.4 points. The squad maintains actual position as float which is then rounded to allow drawing the position on the map. The path is described by touching the squad and dragging to the end position then lifting the pen or finger. (I'm doing this on an iPhone now but Android/Qt/Windows Mobile would work the same) As the pointer moves x, y points are recorded so that the squad gains a list of intermediate destinations on the way to the final destination. I'm finding that the destinations are not evenly spaced but can be further apart depending on the speed of the pointer movement. Following the path is important because obstacles or terrain matter in this game. I'm not trying to remake Flight Control but that's a similar mechanic. Here's what I've been doing, but it just seems too complicated (pseudocode): getDestination() { - self.nextDestination = remove_from_array(destinations) - self.gradient = delta y to destination / delta x to destination - self.angle = atan(self.gradient) - self.cosAngle = cos(self.angle) - self.sinAngle = sin(self.angle) } move() { - get movement allocation for this turn - if self.nextDestination not valid - - getNextDestination() - while(nextDestination valid) && (movement allocation remains) { - - find xStep and yStep using movement allocation and sinAngle/cosAngle calculated for current self.nextDestination - - if current position + xStep crosses the destination - - - find x movement remaining after self.nextDestination reached - - - calculate remaining direct path movement allocation (xStep remaining / cosAngle) - - - make self.position equal to self.nextDestination - - else - - - apply xStep and yStep to current position - } - round squad's float coordinates to integer screen coordinates - draw squad image on map } That's simplified of course, stuff like sign needs to be tweaked to ensure movement is in the right direction. If trig is the best way to do it then lookup tables can be used or maybe it doesn't matter on modern devices like it used to. Suggestions for a better way to do it? an update - iPhone has zero issues with trig and tracking tens of positions and tracks implemented as described above and it draws in floats anyway. The Bresenham method is more efficient, trig is more precise. If I was to use integer Bresenham I would want to multiply by ten or so to maintain a little more positional accuracy to benefit collisions/terrain detection.

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  • How to "enable" HTML5 elements in IE that were inserted by AJAX call?

    - by Gidon
    IE does not work good with unknown elements (ie. HTML5 elements), one cannot style them , or access most of their props. Their are numerous work arounds for this for example: http://remysharp.com/2009/01/07/html5-enabling-script/ The problem is that this works great for static HTML that was available on page load, but when one creates HTML5 elements afterward (for example AJAX call containing them, or simply creating with JS), it will mark these newly added elements them as HTMLUnknownElement as supposed to HTMLGenericElement (in IE debugger). Does anybody know a work around for that, so that newly added elements will be recognized/enabled by IE? Here is a test page: <html><head><title>TIME TEST</title> <!--[if IE]> <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script> </head> <body> <time>some time</time> <hr> <script type="text/javascript"> $("time").text("WORKS GREAT"); $("body").append("<time>NEW ELEMENT</time>"); //simulates AJAX callback insertion $("time").text("UPDATE"); </script> </body> </html> In IE you will see the: UPDATE , and NEW ELEMENT. In any other modern browser you will see UPDATE, and UPDATE Solution Using the answer provided I came up with the following piece of javascript to HTML5 enable a whole bunch of elements returned by my ajax call: (function ($) { jQuery.fn.html5Enable = function () { if ($.browser.msie) { $("abbr, article, aside, audio, canvas, details, figcaption, figure, footer, header, hgroup, mark, menu, meter, nav, output, progress, section, summary, time, video", this).replaceWith(function () { if (this.tagName == undefined) return ""; var el = $(document.createElement(this.tagName)); for (var i = 0; i < this.attributes.length; i++) el.attr(this.attributes[i].nodeName, this.attributes[i].nodeValue); el.html(this.innerHtml); return el; }); } return this; }; })(jQuery); Now this can be called whenever you want to append something: var el = $(AJAX_RESULT_OR_HTML_STRING); el.html5Enable(); $("SOMECONTAINER").append(el); See http://code.google.com/p/html5shiv/issues/detail?id=4 for an explanation about what this plugin doesn't do.

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  • c++ class member functions instatiated by traits

    - by Jive Dadson
    I am reluctant to say I can't figure this out, but I can't figure this out. I've googled and searched stackoverflow, and come up empty. The abstract, and possibly overly vague form of the question is, how can I use the traits-pattern to instantiate non-virtual member functions? The question came up while modernizing a set of multivariate function optimizers that I wrote more than 10 years ago. The optimizers all operate by selecting a straight-line path through the parameter space away from the current best point (the "update"), then finding a better point on that line (the "line search"), then testing for the "done" condition, and if not done, iterating. There are different methods for doing the update, the line-search, and conceivably for the done test, and other things. Mix and match. Different update formulae require different state-variable data. For example, the LMQN update requires a vector, and the BFGS update requires a matrix. If evaluating gradients is cheap, the line-search should do so. If not, it should use function evaluations only. Some methods require more accurate line-searches than others. Those are just some examples. The original version instantiates several of the combinations by means of virtual functions. Some traits are selected by setting mode bits that are tested at runtime. Yuck. It would be trivial to define the traits with #define's and the member functions with #ifdef's and macros. But that's so twenty years ago. It bugs me that I cannot figure out a whiz-bang modern way. If there were only one trait that varied, I could use the curiously recurring template pattern. But I see no way to extend that to arbitrary combinations of traits. I tried doing it using boost::enable_if, etc.. The specialized state info was easy. I managed to get the functions done, but only by resorting to non-friend external functions that have the this-pointer as a parameter. I never even figured out how to make the functions friends, much less member functions. The compiler (vc++ 2008) always complained that things didn't match. I would yell, "SFINAE, you moron!" but the moron is probably me. Perhaps tag-dispatch is the key. I haven't gotten very deeply into that. Surely it's possible, right? If so, what is best practice?

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  • Can sorting Japanese kanji words be done programatically?

    - by Mason
    I've recently discovered, to my astonishment (having never really thought about it before), machine-sorting Japanese proper nouns is apparently not possible. I work on an application that must allow the user to select a hospital from a 3-menu interface. The first menu is Prefecture, the second is City Name, and the third is Hospital. Each menu should be sorted, as you might expect, so the user can find what they want in the menu. Let me outline what I have found, as preamble to my question: The expected sort order for Japanese words is based on their pronunciation. Kanji do not have an inherent order (there are tens of thousands of Kanji in use), but the Japanese phonetic syllabaries do have an order: ???????????????????... and on for the fifty traditional distinct sounds (a few of which are obsolete in modern Japanese). This sort order is called ???? (gojuu on jun , or '50-sound order'). Therefore, Kanji words should be sorted in the same order as they would be if they were written in hiragana. (You can represent any kanji word in phonetic hiragana in Japanese.) The kicker: there is no canonical way to determine the pronunciation of a given word written in kanji. You never know. Some kanji have ten or more different pronunciations, depending on the word. Many common words are in the dictionary, and I could probably hack together a way to look them up from one of the free dictionary databases, but proper nouns (e.g. hospital names) are not in the dictionary. So, in my application, I have a list of every prefecture, city, and hospital in Japan. In order to sort these lists, which is a requirement, I need a matching list of each of these names in phonetic form (kana). I can't come up with anything other than paying somebody fluent in Japanese (I'm only so-so) to manually transcribe them. Before I do so though: Is it possible that I am totally high on fire, and there actually is some way to do this sorting without creating my own mappings of kanji words to phonetic readings, that I have somehow overlooked? Is there a publicly available mapping of prefecture/city names, from the government or something? That would reduce the manual mapping I'd need to do to only hospital names. Does anybody have any other advice on how to approach this problem? Any programming language is fine--I'm working with Ruby on Rails but I would be delighted if I could just write a program that would take the kanji input (say 40,000 proper nouns) and then output the phonetic representations as data that I could import into my Rails app. ??????????

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  • Commitment to Zend Framework - any arguments against?

    - by Pekka
    I am refurbishing a big CMS that I have been working on for quite a number of years now. The product itself is great, but some components, the Database and translation classes for example, need urgent replacing - partly self-made as far back as 2002, grown into a bit of a chaos over time, and might have trouble surviving a security audit. So, I've been looking closely at a number of frameworks (or, more exactly, component Libraries, as I do not intend to change the basic structure of the CMS) and ended up with liking Zend Framework the best. They offer a solid MVC model but don't force you into it, and they offer a lot of professional components that have obviously received a lot of attention (Did you know there are multiple plurals in Russian, and you can't translate them using a simple ($number == 0) or ($number > 1) switch? I didn't, but Zend_Translate can handle it. Just to illustrate the level of thorougness the library seems to have been built with.) I am now literally at the point of no return, starting to replace key components of the system by the Zend-made ones. I'm not really having second thoughts - and I am surely not looking to incite a flame war - but before going onward, I would like to step back for a moment and look whether there is anything speaking against tying a big system closely to Zend Framework. What I like about Zend: As far as I can see, very high quality code Extremely well documented, at least regarding introductions to how things work (Haven't had to use detailed API documentation yet) Backed by a company that has an interest in seeing the framework prosper Well received in the community, has a considerable user base Employs coding standards I like Comes with a full set of unit tests Feels to me like the right choice to make - or at least, one of the right choices - in terms of modern, professional PHP development. I have been thinking about encapsulating and abstracting ZF's functionality into own classes to be able to switch frameworks more easily, but have come to the conclusion that this would not be a good idea because: it would be an unnecessary level of abstraction it could cost performance the big advantage of using a framework - the existence of a developer base that is familiar with its components - would partly be cancelled out therefore, the commitment to ZF would be a deep one. Thus my question: Is there anything substantial speaking against committing to the Zend Framework? Do you have insider knowledge of plans of Zend Inc.'s to go evil in 2011, and make it a closed source library? Is Zend Inc. run by vampires? Are there conceptual flaws in the code base you start to notice when you've transitioned all your projects to it? Is the appearance of quality code an illusion? Does the code look good, but run terribly slow on anything below my quad-core workstation?

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