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  • what property should i set to Fit the text in label

    - by Shadow
    Hi, i want to display a big string in Qlablel for this simply i have created a label in Qt GUI editor, then i put the string, with the Wordwrap property ON. here text is not coming to the next line itself, instead its crossing the view region. but if i give "\n" it works well. how to put up big string in label, to display in visible region.

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  • HttpResponseRedirect question

    - by Hulk
    Cant we send a dictionary variable when using HttpResponseRedirect render_to_response('edited/display.html',context_instance=RequestContext(request,{'newlist': newlist})) //How can the dictionary and the request sent back again //sumthing like this return HttpResponseRedirect('edited/display.html',context_instance=RequestContext(request,{'newlist': newlist}))

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  • Object relationships

    - by Hammerstein
    This stems from a recent couple of posts I've made on events and memory management in general. I'm making a new question as I don't think the software I'm using has anything to do with the overall problem and I'm trying to understand a little more about how to properly manage things. This is ASP.NET. I've been trying to understand the needs for Dispose/Finalize over the past few days and believe that I've got to a stage where I'm pretty happy with when I should/shouldn't implement the Dispose/Finalize. 'If I have members that implement IDisposable, put explicit calls to their dispose in my dispose method' seems to be my understanding. So, now I'm thinking maybe my understanding of object lifetimes and what holds on to what is just wrong! Rather than come up with some sample code that I think will illustrate my point, I'm going to describe as best I can actual code and see if someone can talk me through it. So, I have a repository class, in it I have a DataContext that I create when the repository is created. I implement IDisposable, and when my calling object is done, I call Dispose on my repository and explicitly call DataContext.Dispose( ). Now, one of the methods of this class creates and returns a list of objects that's handed back to my front end. Front End - Controller - Repository - Controller - Front End. (Using Redgate Memory Profiler, I take a snapshot of my software when the page is first loaded). My front end creates a controller object on page load and then makes a request to the repository sending back a list of items. When the page is finished loading, I call Dispose on the controller which in turn calls dispose on the context. In my mind, that should mean that my connection is closed and that I have no instances of my controller class. If I then refresh the page, it jumps to two 'Live' instances of the controller class. If I look at the object retention graph, the objects I created in my call to the list are being held onto ultimately by what looks like Linq. The controller/repository aside, if I create a list of objects somewhere, or I create an object and return it somewhere, am I safe to just assume that .NET will eventually come and clean things up for me or is there a best practice? The 'Live' instances suggest to me that these are still in memory and active objects, the fact that RMP apparently forces GC doesn't mean anything?

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  • Calling function with 1 paremeter @ selector.

    - by Mr. McPepperNuts
    I want to call this guy -(void)addFavorite:(NSString *)favoriteToAdd at, @selector here action:@selector([addFavorite favoriteToAdd:@"string"])]; But I keep getting syntax error no matter which way I write it. Can someone point out the appropriate way to call this function? When it had no parameter and was "addFavorite," it worked fine.

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  • Java MessageDigest result does not stay constant

    - by user344146
    I've got this function for encrypting passwords in Java, but somehow when I call MessageDigest, it returns a different result every time even though I call it with the same password. I wonder if I am initializing it wrong somehow. public String encrypt (String password) { MessageDigest md = MessageDigest.getInstance("SHA-1"); md.reset(); md.update(password.getBytes(Charset.forName("utf-8")),0,password.length()); String res = md.digest().toString(); }

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  • Problem with using the XPATH functions

    - by Alex
    I've got a problem with using the XPATH functions. When I try to call some functions like lower-case or upper-case etc,they are not executed and I can't figure the problem out. I included the namespace xmlns:fn="http://www.w3.org/2005/xpath-functions" at the top of my XSL stylesheet and use fn namespace to call these functions but anyway nothing is working. Can anyone explain the reason and what I should do in order to be able to use the following functions? Cheers

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  • How to make the tabbar view appear when parsing is done in iphone?

    - by Warrior
    I am new to iphone development.I created a application , in which the first tab bar view ,load a web page and in second tab bar view ,it parses a xml file and display the content in the table view. When i click the second tab bar, the tab bar view is seen only after the parsing is done, till the parsing time the tab bar appears like unselected.I want to display the tabbar view with activity indicator when the parsing is done.How can i achieve it.Please help me out.Thanks.

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  • C++: Why does gcc prefer non-const over const when accessing operator[]?

    - by JonasW
    This question might be more appropriately asked regarding C++ in general, but as I am using gcc on linux that's the context. Consider the following program: #include <iostream> #include <map> #include <string> using namespace std; template <typename TKey, typename TValue> class Dictionary{ public: map<TKey, TValue> internal; TValue & operator[](TKey const & key) { cout << "operator[] with key " << key << " called " << endl; return internal[key]; } TValue const & operator[](TKey const & key) const { cout << "operator[] const with key " << key << " called " << endl; return internal.at(key); } }; int main(int argc, char* argv[]) { Dictionary<string, string> dict; dict["1"] = "one"; cout << "first one: " << dict["1"] << endl; return 0; } When executing the program, the output is: operator[] with key 1 called operator[] with key 1 called first one: one What I would like is to have the compiler choose the operator[]const method instead in the second call. The reason is that without having used dict["1"] before, the call to operator[] causes the internal map to create the data that does not exist, even if the only thing I wanted was to do some debugging output, which of course is a fatal application error. The behaviour I am looking for would be something like the C# index operator which has a get and a set operation and where you could throw an exception if the getter tries to access something that doesn't exist: class MyDictionary<TKey, TVal> { private Dictionary<TKey, TVal> dict = new Dictionary<TKey, TVal>(); public TVal this[TKey idx] { get { if(!dict.ContainsKey(idx)) throw KeyNotFoundException("..."); return dict[idx]; } set { dict[idx] = value; } } } Thus, I wonder why the gcc prefers the non-const call over the const call when non-const access is not required.

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  • Best way to have common class shared by both C++ and Ruby?

    - by shuttle87
    I am currently working on a project where a team of us are designing a game, all of us are proficient in ruby and some (but not all) of us are proficient in c++. Initially we made the backend in ruby but we ported it to c++ for more speed. The c++ port of the backend has exactly the same features and algorithms as the original ruby code. However we still have a bunch of code in ruby that does useful things but we want it to now get the data from the c++ classes. Our first thought was that we could save some of the data structures in something like XML or redis and call that, but some of the developers don't like that idea. We don't need anything particularly complex data structures to be passed between the different parts of the code, just tuples, strings and ints. Is there any way of integrating the ruby code so that it can call the c++ stuff natively? Will we need to embed code? Will we have to make a ruby extension? If so are there any good resources/tutorials you could suggest? For example say we have this code in the c++ backend: class The_game{ private: bool printinfo; //print the player diagnostic info at the beginning if true int numplayers; std::vector<Player*> players; string current_action; int action_is_on; // the index of the player in the players array that the action is now on //more code here public: Table(std::vector<Player *> in_players, std::vector<Statistics *> player_stats ,const int in_numplayers); ~Table(); void play_game(); History actions_history; }; class History{ private: int action_sequence_number; std::vector<Action*> hand_actions; public: void print_history(); void add_action(Action* the_action_to_be_added); int get_action_sequence_number(){ return action_sequence_number;} bool history_actions_are_equal(); int last_action_size(int street,int number_of_actions_ago); History(); ~History(); }; Is there any way to natively call something in the actions_history via The_game object in ruby? (The objects in the original ruby code all had the same names and functionality) By this I mean: class MyRubyClass def method1(arg1) puts arg1 self.f() # ... but still available puts cpp_method.the_current_game.actions_history.get_action_sequence_number() end # Constructor: def initialize(arg) puts "In constructor with arg #{arg}" #get the c++ object here and call it cpp_method end end Is this possible? Any advice or suggestions are appreciated.

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  • Oracle join issue

    - by acadia
    Hello, I have 3 tables and I am joining these 2 tables as follows: SELECT EMP.FNAME,EMP.LNAME,EMP.AGE,EMPD.TQ,EMPD.TA,CTY.CITY_NAME FROM EMPLOYEE EMP,EMPLOYEE_DETAIL EMPD, CITY CTY WHERE EMP.EMP_ID=EMPD.EMP_ID AND EMPD_CITY_ID=CTY.CITY_ID I want to display records even if City record is not in CITY table. For eg. if City_ID record for say 10 is not in City table but there is an employee detail record with City_id 10 it should display City_name as null instead of not displaying the record at all. Appreciate your help

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  • Adding procedural C openGL functions to an iPhone project

    - by user309595
    I want to add a few drawing functions to an iPhone project for drawing things. Something like drawTile(x,y,len,wid); which would call openGL to draw a box somewhere. I should just be able to write a procedural C file to do this but the openGL libraries are objective C and I'm getting weird errors. Do I have to make a class for all of my drawing commands and call class methods?

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  • mfc, how can i make a proccess in an OnLButtonDown() event happen again and again untill i live the

    - by Erez
    What happen untill now is this... Any line happens once, and if i use a while(1) or while (nFlags == MK_LBUTTON) its working as it should but i get a crash... The other problem, or mabye the same one is the delay if i will be able to do it, mabye using while() with Timer()????? I was thinking about Timer() to recall the function with delay but i can't call OnLButtonDown() becouse as i understand it only a messege can call it with the arguments..... 10x

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  • Change in pitch of voice

    - by user340007
    Hi, I am creating an iPhone application in which when I make a call to anyone I should be able to change the pitch of my call voice in real time. So for that which framework or any third party library should I use? Thanks, Sunil.

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  • turn on bluetooth in pocket pc VS-c++

    - by baash05
    I'm attempting to turn on the bluetooth network of a Janam (wince5.0) I understand it involves ndisuio, but I'm not sure how to invoke it. I assume it will involve the use of a standard DLL or api call, how can I find out what that call would be?

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  • show line in exception.message

    - by Crash893
    How would one display what line number caused the error and is this even possible with the way that .net compiles its exes? If not is there an automated way for exception.message to display the sub that crapped out? try { int x = textbox1.text; } catch(exception ex) { messagebox.show(ex.message); }

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  • How to do method chaining in Java? o.m1().m2().m3().m4()

    - by Pentium10
    Maybe the title might be better, if someone knows a better one, please edit. I've seen in many Java code notation that after a method we call another, here is an example. Toast.makeText(text).setGravity(Gravity.TOP, 0, 0).setView(layout).show(); As you see after calling makeText on the return we call setGravity and so far. How can I do this with my own classes? Do I have to do anything special?

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  • how to create a web part to track page creation time

    - by George2
    Hello everyone, I am new to SharePoint Server 2007 Web Part, and I am using SharePoint Server 2007 on Windows Server 2008. I program using VSTS 2008 + C# + .Net 3.5. I want to create a simple web part which could display page creation time and modified time (display such time information at the bottom of a web page). Any reference code samples or tutorials -- anything helpful for a newbie of SharePoint 2007 Web Part or this specific time tracking issue is helpful. thanks in advance, George

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  • Java: "implements Runnable" vs. "extends Thread"

    - by goosefraba19
    From what time I've spent with threads in Java, I've found these two ways to write threads. public class ThreadA implements Runnable { public void run() { //Code } } //with a "new Thread(threadA).start()" call public class ThreadB extends Thread { public ThreadB() { super("ThreadB"); } public void run() { //Code } } //with a "threadB.start()" call Is there any significant difference in these two blocks of code?

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  • Custom CSS menu, "Active" tab remains on 'Home' not the actual page

    - by user1690254
    I created this custom css menu, but when switching tabs, the "Active" tab design remains on the 'Home' link on the menu, rather than the actual page I'm on. Any idea how I an fix this? Here's the code: .menu{margin:0 auto; padding:0; height:30px; width:100%; display:block; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') repeat-x;} .menu li{padding:0; margin:0; list-style:none; display:inline;} .menu li a{float:left; padding-left:15px; display:block; color:rgb(255,255,255); text-decoration:none; font:12px Verdana, Arial, Helvetica, sans-serif; cursor:pointer; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 0px -30px no-repeat;} .menu li a span{line-height:30px; float:left; display:block; padding-right:15px; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 100% -30px no-repeat;} .menu li a:hover{background-position:0px -60px; color:rgb(255,255,255);} .menu li a:hover span{background-position:100% -60px;} .menu li a.active, .menu li a.active:hover{line-height:30px; font:12px Verdana, Arial, Helvetica, sans-serif; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 0px -90px no-repeat; color:rgb(255,255,255);} .menu li a.active span, .menu li a.active:hover span{background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 100% -90px no-repeat;} <ul class="menu"> <li><a href="http://caribbeantl.com/"; class="active"><span>Home</span></a></li> <li><a href="http://caribbeantl.com/hotels/"><span>Testing post</span></a></li> </ul>

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