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  • PyQt signal between QObjects

    - by geho
    I'm trying to make a view and controller in PyQt where the view is emitting a custom signal when a button is clicked, and the controller has one of its methods connected to the emitted signal. It does not work, however. The respond method is not called when I click the button. Any idea what I did wrong ? import sys from PyQt4.QtCore import * from PyQt4.QtGui import QPushButton, QVBoxLayout, QDialog, QApplication class TestView(QDialog): def __init__(self, parent=None): super(TestView, self).__init__(parent) self.button = QPushButton('Click') layout = QVBoxLayout() layout.addWidget(self.button) self.setLayout(layout) self.connect(self.button, SIGNAL('clicked()'), self.buttonClicked) def buttonClicked(self): self.emit(SIGNAL('request')) class TestController(QObject): def __init__(self, view): self.view = view self.connect(self.view, SIGNAL('request'), self.respond) def respond(self): print 'respond' app = QApplication(sys.argv) dialog = TestView() controller = TestController(dialog) dialog.show() app.exec_()

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  • How can I get a project type on Netbeans Platform?

    - by Fabio
    Hi folks, Is there a way to know the type of a selected project? I would like to do some specific actions depending of the project type like a J2SE project. Below is the only way that I found to do that: public final class MyAction extends CookieAction { @Override public boolean isEnabled() { if(this.getActivatedNodes() == null || this.getActivatedNodes().length != 1) { return false; } Lookup lookup = this.getActivatedNodes()[0].getLookup(); // gets the selected project Project currentProject = lookup.lookup(Project.class); // checks if the selected project is a J2SE Project or a Maven Project if(currentProject != null && (currentProject.getClass().getSimpleName().equals("J2SEProject") || currentProject.getClass().getSimpleName().equals("NbMavenProjectImpl"))) { return true; } return false; }}

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  • position:absolute within border-radius and overflow:hidden

    - by JaNightmare
    I had a problem with border-radius in webkit browsers and found the solution at the following URL: How to make CSS3 rounded corners hide overflow in Chrome/Opera but iam using a another element with position: absolute; inside this now I need to make the caption with rounded border too, but do not know how note: i can't use another border-radius in caption, because this will have an animation see the code with: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Problem</title> <style type="text/css"> img { border: 0; } a { text-decoration: none; } .wrap-events { float: left; position: relative; width: 500px; height: 250px; } .events { overflow: hidden; -webkit-border-radius: 50px; -moz-border-radius: 50px; border-radius: 50px; } .caption { position: absolute; width: 100%; bottom: 0; color: #FFFFFF; background-color: #151515; font: 12px "Arial", Helvetica, sans-serif; opacity: 0.6; border-radius: 0 0 50px 50px; /* add border-radius to caption */ } .caption p { padding: 10px; } </style> </head> <body> <div class="wrap-events"> <div class="events"> <a href="#"> <img src="http://www.cg-auto.com.br/forum/imagens/imagens_news/26c4dc4359edcfd4c6871ee1fa958539.jpg" alt="image"> </a> <div class="caption"> <p>This is a caption</p> </div> </div> </div> <button id="slide">Slide It!</button> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> <script type="text/javascript"> $('#slide').click(function(){ $('.caption').hide().slideDown(2000); }); </script> </body> </html> cheers

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  • Does std::multiset guarantee insertion order?

    - by Naveen
    I have a std::multiset which stores elements of class A. I have provided my own implementation of operator< for this class. My question is if I insert two equivalent objects into this multiset is their order guaranteed? For example, first I insert a object a1 into the set and then I insert an equivalent object a2 into this set. Can I expect the a1 to come before a2 when I iterate through the set? If no, is there any way to achieve this using multiset?

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  • Is it possible to write a Java printf statement that prints the statement itself?

    - by polygenelubricants
    Is it possible to have a Java printf statement, whose output is the statement itself? Some snippet to illustrate: // attempt #1 public class Main { public static void main(String[] args) { System.out.printf("something"); } } This prints something. So the output of attempt #1 is not quite exactly the printf statement in attempt #1. We can try something like this: // attempt #2 public class Main { public static void main(String[] args) { System.out.printf("System.out.printf(\"something\");"); } } And now the output is System.out.printf("something"); So now the output of attempt #2 matches the statement in output #1, but we're back to the problem we had before, since we need the output of attempt #2 to match the statement in attempt #2. So is it possible to write a one-line printf statement that prints itself?

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  • Whats wrong with the following code, its not compiling

    - by Ganesh Kundapur
    #include <iostream> #include <vector> using namespace std; class Base { public: void Display( void ) { cout<<"Base display"<<endl; } int Display( int a ) { cout<<"Base int display"<<endl; return 0; } }; class Derived : public Base { public: void Display( void ) { cout<<"Derived display"<<endl; } }; void main() { Derived obj; obj.Display(); obj.Display( 10 ); } $test1.cpp: In function ‘int main()’: test1.cpp:35: error: no matching function for call to ‘Derived::Display(int)’ test1.cpp:24: note: candidates are: void Derived::Display() On commenting obj.Display(10), it works.

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  • Getting the value from asp:LinkButton's CommandArgument attribute using jquery/javascript

    - by LobalOrning
    I need to get the value of the CommandArgument attribute of a LinkButton, in an asp:Repeater. I have an asp:Repeater with 2 LinkButtons whose CommandArgument I set to a value: <ItemTemplate> <tr class="odd"> <td><%#DataBinder.Eval(Container.DataItem, "batch_id")%></td> <td><%#DataBinder.Eval(Container.DataItem, "productId")%></td> <td><%#DataBinder.Eval(Container.DataItem, "serial_number")%></td> <td><%#DataBinder.Eval(Container.DataItem, "activation_card_number")%></td> <td><%#DataBinder.Eval(Container.DataItem, "transaction_amount","{0:C}")%></td> <td><%#DataBinder.Eval(Container.DataItem, "response_dt", "{0:M/d/yyyy HH:mm:ss}")%></td> <td style="text-align:center;"><%#DataBinder.Eval(Container.DataItem, "resp_process_msg")%></td> <td style="text-align:center;"><%#DataBinder.Eval(Container.DataItem, "resp_response_code")%></td> <td style="text-align:center;"><asp:LinkButton ID="lnkBtnRestageAdd" CommandName="Add" CommandArgument='<%#Eval("activation_card_number")%>' runat="server" Text="stage" class="add" OnClientClick="return false;" /></td> <td style="text-align:center;"><asp:LinkButton ID="lnkBtnRestageMinus" CommandName="Subtract" CommandArgument='<%#Eval("activation_card_number")%>' runat="server" Text="stage" class="minus" OnClientClick="return false;" /></td> </tr> </ItemTemplate> I have suppressed the PostBack with OnClientClick="return false;" so that I can pop a jQuery dialog modal when the link buttons get clicked: if (btnAdd != null) { $(".add").click(function() { $("#<%=divDialogAdd.ClientID %>").removeAttr("style"); $("#<%=divDialogAdd.ClientID %>").dialog("open"); }); } In the modal I have 2 other asp:LinkButtons, and when the 'Yes' button is clicked I do the postback like so: yesBtn.click(function() { setTimeout('__doPostBack(\'btnAdd\',\'\')', 0); //need to add a param }); What I need to do, is somehow grab the CommandArgument value from the LinkButton in the Repeater, so that I can pass that as a parametere or assign it to a hidden field. I have tried jQuery's attr(), but that only works when the attribute was set using that function as well. How can I get this value, or what other way can I go about this?

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  • AS3 + addChild() getting image from library to the stage

    - by Colin
    Hi, I have an .fla file with 1 image in the library and 1 .as file. I have linked the image up with the Class name of libraryImages and Base class is flash.display.BitmapData. This is my AS: package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.MovieClip; public class Banner extends MovieClip { var defaultImage:libraryImages = new libraryImages(469, 60); var myImage:Bitmap = new Bitmap(defaultImage); addChild(myImage); } } I am getting two errors: 1180: Call to a possibly undefined method addChild. 1120: Access of undefined property myImage. Any ideas?

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  • NHibernate: Dynamically swapping a single domain model between multiple physical data models

    - by Nigel
    Hi In this article Ayende describes how to map a single domain model to multiple physical data models. Is it possible to extend this principle such that the mapping can chosen dynamically? So for example, imagine we had an entity that could be written to the same physical schema in three ways depending on its current status, and lets assume that regardless of status each entity had a unique identifier. One solution would be to represent the entity in its different states with three separate classes: one for each mapping. Then the entity could be loaded and in order to change its state the entity could be mapped to a class representing one of its other states and then saved back to the schema, making use of a different mapping. I was wondering if it is at all possible to have the same entity represented by one class that held a status flag (kind of like a discriminator), and any save to the schema would choose the appropriate mapping based on the value of the status flag. Hopefully that made sense! Many thanks.

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  • (Jquery) Find the contents of a td from a selected tr

    - by Andy
    I am very new to JQuery, so appologies for what may be a very simple question. I have a table, and when i click on a row, i want the cells details to be filled into a form: so simple example <table id="table"> <tr><td class="field1">1 </td><td class="field2">2 </td></tr> </table> <input id="input" type="text" /> So the JQuery: $(document).ready(function() { $('#table tr').click(function() { $test = $(this).find('td').context.innerText) //problem here * $('#input').val( ); }) this returns the innertext of the tr (i.e "1 2" How am i supose to do it... Thanks in advance Andy

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  • Fluent nHibernate - How to map a non-key column on a junction table?

    - by The Matt
    Taking an example that is provided on the Fluent nHibernate website, I need to extend it slightly: I need to add a 'Quantity' column to the StoreProduct table. How would I map this using nHibernate? An example mapping is provided for the given scenario above, but I'm not sure how I would get the Quantity column to map to a property on the Product class: public class StoreMap : ClassMap<Store> { public StoreMap() { Id(x => x.Id); Map(x => x.Name); HasMany(x => x.Employee) .Inverse() .Cascade.All(); HasManyToMany(x => x.Products) .Cascade.All() .Table("StoreProduct"); } }

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  • exclude private property from print_r or object?

    - by Hailwood
    Basically I am using Code Igniter, and the Code Igniter base class is huge, when I print_r some of my objects they have the base class embedded inside them. this makes it a pain to get the information I actually wanted (the rest of the properties). So, I am wondering if there is a way I can hide, or remove the base class object? I have tried clone $object; unset($object->ci); print_r($object); but of course the ci property is private. the actual function I am using for dumping is: /** * Outputs the given variables with formatting and location. Huge props * out to Phil Sturgeon for this one (http://philsturgeon.co.uk/blog/2010/09/power-dump-php-applications). * To use, pass in any number of variables as arguments. * Optional pass in "true" as final argument to kill script after dump * * @return void */ function dump() { list($callee) = debug_backtrace(); $arguments = func_get_args(); $total_arguments = count($arguments); if (end($arguments) === true) $total_arguments--; echo '<fieldset style="background: #fefefe !important; border:2px red solid; padding:5px">'; echo '<legend style="background:lightgrey; padding:5px;">' . $callee['file'] . ' @ line: ' . $callee['line'] . '</legend><pre>'; $i = 0; foreach ($arguments as $argument) { //if the last argument is true we don't want to display it. if ($i == ($total_arguments) && $argument === true) break; echo '<br/><strong>Debug #' . (++$i) . ' of ' . $total_arguments . '</strong>: '; if ((is_array($argument) || is_object($argument)) && count($argument)) { print_r($argument); } else { var_dump($argument); } } echo '</pre>' . PHP_EOL; echo '</fieldset>' . PHP_EOL; //if the very last argument is "true" then die if (end($arguments) === true) die('Killing Script'); }

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  • Observing 'click' event on <a> tag generated by scriptaculous Builder

    - by bratsche
    I'm using scriptaculous Builder to generate some DOM elements dynamically, and one of them is a link tag. I wasn't sure how to generate this with the click callback inline along with the rest of the Builder code, so I'm generating the link tag ahead of time and then inserting it with the rest of the Builder phase. The problem is that the callback for the link is never actually executed when I click the link, and the URL bar changes to http://localhost/foo/bar/# instead. The callback method is a part of my class, so I'm binding it as an event listener ahead of time. var Foo = Class.create ({ initialize: function () { this.closeBinding = this.doClose.bindAsEventListener (this); }, generate: function () { /* Create the link and bind the click listener */ var close_link = Builder.node ('a', { href: '#' }, 'Close'); Event.observe (close_link, 'click', this.closeBinding); /* Generate the new DOM nodes */ return Builder.node ('div', [ Builder.node ('h2', 'This is a test'), close_link ]); }, doClose: function (evt) { /* This code is never called when I click the link. */ } });

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  • Should I be using abstract methods in this Python scenario?

    - by sfjedi
    I'm not sure my approach is good design and I'm hoping I can get a tip. I'm thinking somewhere along the lines of an abstract method, but in this case I want the method to be optional. This is how I'm doing it now... from pymel.core import * class A(object): def __init__(self, *args, **kwargs): if callable(self.createDrivers): self._drivers = self.createDrivers(*args, **kwargs) select(self._drivers) class B(A): def createDrivers(self, *args, **kwargs): c1 = circle(sweep=270)[0] c2 = circle(sweep=180)[0] return c1, c2 b = B() In the above example, I'm just creating 2 circle arcs in PyMEL for Maya, but I fully intend on creating more subclasses that may or may not have a createDrivers method at all! So I want it to be optional and I'm wondering if my approach is—well, if my approach could be improved?

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  • Connection and Collection Interfaces in Java

    - by Bhupi
    Which class implements all the Connection Interfaces which are in javax.microedition.io package and how? And in the same way which class implements the some of Collection interfaces like Iterator interface. I saw a code: - Iterator it; ArrayList list = new ArrayList(); it = list.iterator(); The iterator() return type is "Iterator" which is an interface. Please tell me what this code is doing is it returning an object of type Iterator? but as far as I know, interface can't be initialized.

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  • Junit Ant Task, output stack trace

    - by Benju
    I have a number of tests failing in the following JUnit Task. <target name="test-main" depends="build.modules" description="Main Integration/Unit tests"> <junit fork="yes" description="Main Integration/Unit Tests" showoutput="true" printsummary="true" outputtoformatters="true"> <classpath refid="test-main.runtime.classpath"/> <batchtest filtertrace="false" todir="${basedir}"> <fileset dir="${basedir}" includes="**/*Test.class" excludes="**/*MapSimulationTest.class"/> </batchtest> </junit> </target> How do I tell Junit to ouput the errors for each test so that I can look at the stack trace and debug the issues.

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  • Java: how to represent graphs?

    - by Rosarch
    I'm implementing some algorithms to teach myself about graphs and how to work with them. What would you recommend is the best way to do that in Java? I was thinking something like this: public class Vertex { private ArrayList<Vertex> outnodes; //Adjacency list. if I wanted to support edge weight, this would be a hash map. //methods to manipulate outnodes } public class Graph { private ArrayList<Vertex> nodes; //algorithms on graphs } But I basically just made this up. Is there a better way? Also, I want it to be able to support variations on vanilla graphs like digraphs, weighted edges, multigraphs, etc.

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  • How to map it? HasOne x References

    - by Felipe
    Hi everyones, I need to make a mapping One by One, and I have some doubts. I have this classes: public class DocumentType { public virtual int Id { get; set; } /* othes properties for documenttype */ public virtual DocumentConfiguration Configuration { get; set; } public DocumentType () { } } public class DocumentConfiguration { public virtual int Id { get; set; } /* some other properties for configuration */ public virtual DocumentType Type { get; set; } public DocumentConfiguration () { } } A DocumentType object has only one DocumentConfiguration, but it is not a inherits, it's only one by one and unique, to separate properties. How should be my mappings in this case ? Should I use References or HasOne ? Someone could give an example ? When I load a DocumentType object I'd like to auto load the property Configuration (in documentType). Thanks a lot guys! Cheers

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  • Using database default values with Linq to SQL codewise

    - by Ivo
    I am using Dynamic Data with linq to SQL and SQL Server 2008. I have a GUID column that gets his value from the default value with newguid(). When I set IsDbGenerated to true in the designer it works like a charm. But when I renew table this property is set back to false again. So I added it to the metadata. For some reason it's not being pickup, "00000000-0000-0000-0000-000000000000" is being inserted in database. The displayname and readonly change are being pick up. What am I missing? [MetadataType(typeof(CMS_Data_HistoryMetadata))] public partial class CMS_Data_History { } [TableName("Content")] public class CMS_Data_HistoryMetadata { [DisplayName("Pagina Title")] public object pageTitleBar { get; set; } [ReadOnly(true)] [DisplayName("Versie")] public object version_date { get; set; } [ColumnAttribute(IsDbGenerated = true)] public object entity_id; }

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  • custom Filter Android won't show me the results

    - by TiGer
    Hi, I have been implementing a class which class extends ArrayAdapter and implements Filterable. The filtering part (in the performFiltering method()) seems to go ok, it fills the FilterResults object just as expected. But then I think I'm not doing it right on how to publish the results, atm I have : protected void publishResults(CharSequence prefix, FilterResults results) { // NOTE: this function is *always* called from the UI thread. subItems = (Vector)results.values; notifyDataSetChanged(); } But this simply won't "populate" my List with the received data. So now my question is how do I populate my List with the received results ? Do I have to do that programmatically ?

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  • helper function not found in view

    - by cbrulak
    I'm following the instructions at: http://agilewebdevelopment.com/plugins/acts_as_taggable_on_steroids to add the tag cloud to my view: in the controller: class PostController < ApplicationController def tag_cloud @tags = Post.tag_counts end end I also added the tag_cloud method as a helper method in the controller and in the view: <% tag_cloud @tags, %w(css1 css2 css3 css4) do |tag, css_class| %> (line 1) <%= link_to tag.name, { :action => :tag, :id => tag.name }, :class => css_class %> (line2) <% end %> (line 3) However: 1) if I don't add the helper_method :tag_cloud in the controller I get a undefined method error for tag_cloud 2) if I do add the helper method I get: wrong number of arguments (2 for 0) on the same line 1 of my sample code above. Suggestions?

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