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  • Rendering LaTeX on third-party websites

    - by A. Rex
    There are some sites on the web that render LaTeX into some more readable form, such as Wikipedia, some Wordpress blogs, and MathOverflow. They may use images, MathML, jsMath, or something like that. There are other sites on the web where LaTeX appears inline and is not rendered, such as the arXiv, various math forums, or my email. In fact, it is quite common to see an arXiv paper's abstract with raw LaTeX in it, e.g. this paper. Is there a plugin available for Firefox, or would it be possible to write one, that renders LaTeX within pages that do not provide a rendering mechanism themselves? Some notes: It may be impossible to render some of the code, because authors often copy-paste code directly from their source TeX files, which may contain things like "\cite{foo}" or undefined commands. These should be left alone. This question is a repost of a question from MathOverflow that was closed for not being related to math. I program a lot, but Javascript is not my specialty, so comments along the lines of "look at this library" are not particularly helpful to me (but may be to others).

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  • Custom title with image

    - by Alex Volovoy
    Hi all, i'm creating custom title for activity by disabling standard one and managing everything myself. I wonder if it's possible to replace/theme standart title to my needs. I can customize size, background image, and text via themes by changing windowXYZStyle items. The only thing i couldn't find - how i can add image instead of text. I've tried requestWindowFeature(Window.FEATURE_CUSTOM_TITLE) and assign custom layout - but it doesn't seems to work. EDIT : Here is a report of testing suggestions, code is below - result - image view is not showing up. Activity public class SettingsActivity extends PreferenceActivity { @Override protected void onCreate(Bundle savedInstanceState) { requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title); super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.settings); } } XML : <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/title" android:layout_width="fill_parent" android:layout_height="26dip" android:paddingLeft="5dip" android:background="@drawable/titlebar_bg" android:layout_gravity="left|center" > <ImageView android:id="@+id/logo" android:src="@drawable/title_logo" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>

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  • Touch coordinates in iPhone landscape mode app

    - by gok
    I am trying to make this landscape only iphone app. I only use this code for this purpose: - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationLandscapeRight); } However when I click clip subviews checkbox from interface builder, the view is clipped from the middle. I also don't receive any touch events from outside of view bounds obviously. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { CGPoint fingerPos = [[touches anyObject] locationInView:self.view]; NSLog(@"%f %f",fingerPos.x,fingerPos.y); } only prints for coordinates between 20 and 320 for X. But Y works fine. When i try to modify bounds by hand, everything works fine; View is positioned and shown correctly, printed coordinates are correct, I receive touch from all of the screen except between 0 and 20 for X. So Left side of the screen is unresponsive to touch events for only 20 pixels. Code I use to modify bounds: self.view.bounds = CGRectMake(-180.0f, 0.0f, 680.0f, 480.0f); What might be causing this? Weird!

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  • Display ñ on a C# .NET application

    - by mmr
    I have a localization issue. One of my industrious coworkers has replaced all the strings throughout our application with constants that are contained in a dictionary. That dictionary gets various strings placed in it once the user selects a language (English by default, but target languages are German, Spanish, French, Portuguese, Mandarin, and Thai). For our test of this functionality, we wanted to change a button to include text which has a ñ character, which appears both in Spanish and in the Arial Unicode MS font (which we're using throughout the application). Problem is, the ñ is appearing as a square block, as if the program did not know how to display it. When I debug into that particular string being read from disk, the debugger reports that character as a square block as well. So where is the failure? I think it could be in a few places: 1) Notepad may not be unicode aware, so the ñ displayed there is not the same as what vs2008 expects, and so the program interprets the character as a square (EDIT: notepad shows the same characters as vs; ie, they both show the ñ. In the same place.). 2) vs2008 can't handle ñ. I find that very, very hard to believe. 3) The text is read in properly, but the default font for vs2008 can't display it, which is why the debugger shows a square. 4) The text is not read in properly, and I should use something other than a regular StreamReader to get strings. 5) The text is read in properly, but the default String class in C# doesn't handle ñ well. I find that very, very hard to believe. 6) The version of Arial Unicode MS I have doesn't have ñ, despite it being listed as one of the 50k characters by http://www.fileinfo.info. Anything else I could have left out? Thanks for any help!

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  • Can a WPF ComboBox display alternative text when its selection is null?

    - by Garth T Kidd
    G'day! I want my WPF ComboBox to display some alternative text when its data-bound selection is null. The view model has the expected properties: public ThingoSelectionViewModel : INotifyPropertyChanged { public ThingoSelectionViewModel(IProvideThingos) { this.Thingos = IProvideThingos.GetThingos(); } public ObservableCollection<Thingo> Thingos { get; set; } public Thingo SelectedThingo { get { return this.selectedThingo; } set { // set this.selectedThingo and raise the property change notification } // ... } The view has XAML binding to the view model in the expected way: <ComboBox x:Name="ComboboxDrive" SelectedItem="{Binding Path=SelectedThingo}" IsEditable="false" HorizontalAlignment="Left" MinWidth="100" IsReadOnly="false" Style="{StaticResource ComboboxStyle}" Grid.Column="1" Grid.Row="1" Margin="5" SelectedIndex="0"> <ComboBox.ItemsSource> <CompositeCollection> <ComboBoxItem IsEnabled="False">Select a thingo</ComboBoxItem> <CollectionContainer Collection="{Binding Source={StaticResource Thingos}}" /> </CompositeCollection> </ComboBox.ItemsSource> </ComboBox> The ComboBoxItem wedged into the top is a way to get an extra item at the top. It's pure chrome: the view model stays pure and simple. There's just one problem: the users want "Select a thingo" displayed whenever the ComboBox' selection is null. The users do not want a thingo selected by default. They want to see a message telling them to select a thingo. I'd like to avoid having to pollute the viewmodel with a ThingoWrapper class with a ToString method returning "Select a thingo" if its .ActualThingo property is null, wrapping each Thingo as I populate Thingos, and figuring out some way to prevent the user from selecting the nulled Thingo. Is there a way to display "Select a thingo" within the ComboBox' boundaries using pure XAML, or pure XAML and a few lines of code in the view's code-behind class?

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  • Generating the SQL query plan takes 5 minutes, the query itself runs in milliseconds. What's up?

    - by TheImirOfGroofunkistan
    I have a fairly complex (or ugly depending on how you look at it) stored procedure running on SQL Server 2008. It bases a lot of the logic on a view that has a pk table and a fk table. The fk table is left joined to the pk table slightly more than 30 times (the fk table has a poor design - it uses name value pairs that I need to flatten out. Unfortunately, it's 3rd party and I cannot change it). Anyway, it had been running fine for weeks until I periodically noticed a run that would take 3-5 minutes. It turns out that this is the time it takes to generate the query plan. Once the query plan exists and is cached, the stored procedure itself runs very efficiently. Things run smoothly until there is a reason to regenerate and cache the query plan again. Has anyone seen this? Why does it take so long to generate the plan? Are there ways to make it come up with a plan faster?

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  • flow 2 columns of text automatically with CSS

    - by Joseph Mastey
    I have the code similar to the following: <p>This is paragraph 1. Lorem ipsum ... </p> <p>This is paragraph 2. Lorem ipsum ... </p> <p>This is paragraph 3. Lorem ipsum ... </p> <p>This is paragraph 4. Lorem ipsum ... </p> <p>This is paragraph 5. Lorem ipsum ... </p> <p>This is paragraph 6. Lorem ipsum ... </p> I'd like to, without markup if possible, cause this text to flow into two columns (1-3 on the left, 4-6 on the right). The reason for my hesitation to add a column using a <div> is that this text is entered by the client via a WYSIWYG editor, so any elements I inject are likely to be killed later on inexplicably. Thanks, Joe

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  • contentEditable cursor position/style in FireFox

    - by Ben McCann
    I'm having trouble using contentEditable in FireFox 3. I have a problem where the cursor will appear above or only partially in the div after I click in it (until I start typing at which time it behaves correctly). Any ideas on how I can stop this from happening? HTML: <html> <head><title>Test Page</title></head> <body> <div id="editor" style="position:absolute; left:157px; top:230px; width:120px; height:30px"> <div id="input" style="width:100%; height:100%; border:1px solid black; outline:none" contentEditable="true"> </div> </div> </body> </html>

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  • My button background seems stretched.

    - by Kyle Sevenoaks
    Hi, I have a button as made for you to see here. Looks fine,right? Well on the live site, euroworker.no/shipping it seems stretched. Renders fine in Chrome, IE and Safari, I thought it might have been a FF issue, but loaded the fiddle into FF and seems fine. Quick ref CSS and html: #fortsett_btn { background-image: url(http://euroworker.no/public/upload/fortsett.png?1269434047); background-repeat:no-repeat; background-position:left; background-color:none; border:none; outline;none; visibility: visible; position: relative; z-index: 2; width: 106px; height: 25px; cursor:pointer; }? And HTML <button type="submit" class="submit" id="fortsett_btn" title="Fortsett" value="">&nbsp;</button>? I wonder what's up with it.

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  • Skipping one item in the column

    - by zurna
    I created a simple news website. I store both videos and images in IMAGES table. Videos added have videos and images added have images stored in a column called ImagesType. Images and Videos attached to a news is stored in ImagesID column of the NEWS table. My problem occurs when I need to display the first image of a news. i.e. IMAGES table: ImagesID ImagesLgURL ImagesType 1 /FLPM/media/videos/0H7T9C0F.flv videos 2 /FLPM/media/images/8R5D7M8O.jpg images 3 /FLPM/media/images/0E7Q9Z0C.jpg images NEWS table NewsID ImagesID NewsTitle 1 1;2; Street Chic: Paris ERROR 2 3; Paris Runway NO ERROR The following code give me an error with the 2nd news item because the first ImageID stored in the list is not an image but a video. I need to figure out a way to skip the video item and display the next image. I hope I made sense. SQL = "SELECT NEWSID, CATEGORIESID, IMAGESID, NEWSTITLE, NEWSSHORTDESC, NEWSACTIVE, NEWSDATEENTERED" SQL = SQL & " FROM NEWS N" SQL = SQL & " WHERE NEWSACTIVE = 1" SQL = SQL & " ORDER BY NEWSDATEENTERED DESC" Set objNews = objConn.Execute(SQL) Do While intLooper1 <= 3 And Not objNews.EOF IMAGES = Split(Left(objNews("IMAGESID"),Len(objNews("IMAGESID"))-1), ";") SQL = "SELECT ImagesID, ImagesName, ImagesLgURL, ImagesSmURL, ImagesType" SQL = SQL & " FROM IMAGES I" SQL = SQL & " WHERE ImagesID = " & IMAGES(0) & " AND ImagesType = 'images'" Set objLgImage = objConn.Execute(SQL) <div> <a href="?Section=news&SubSection=redirect&NEWSID=<%=objNews("NEWSID")%>"> <img src="<%=objLgImage("ImagesLgURL")%>" alt="<%=objLgImage("ImagesName")%>" /> </a> </div> <% objLgImage.Close Set objLgImage = Nothing intLooper1 = intLooper1 + 1 objNews.MoveNext Loop %>

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  • Finding subsets that can be completed to tuples without duplicates

    - by Jules
    We have a collection of sets A_1,..,A_n. The goal is to find new sets for each of the old sets. newA_i = {a_i in A_i such that there exist (a_1,..,a_n) in (A1,..,An) with no a_k = a_j for all k and j} So in words this says that we remove all the elements from A_i that can't be used to form a tuple (a_1,..a_n) from the sets (A_1,..,A_n) such that the tuple doesn't contain duplicates. My question is how to compute these new sets quickly. If you just implement this definition by generating all possible v's this will take exponential time. Do you know a better algorithm? Edit: here's an example. Take A_1 = {1,2,3,4} A_2 = {2}. Now the new sets look like this: newA_1 = {1,3,4} newA_2 = {2} The 2 has been removed from A_1 because if you choose it the tuple will always be (2,2) which is invalid because it contains duplicates. On the other hand 1,3,4 are valid because (1,2), (3,2) and (4,2) are valid tuples. Another example: A_1 = {1,2,3} A_2 = {1,4,5} A_3 = {2,4,5} A_4 = {1,2,3} A_5 = {1,2,3} Now the new sets are: newA_1 = {1,2,3} newA_2 = {4,5} newA_3 = {4,5} newA_4 = {1,2,3} newA_5 = {1,2,3} The 1 and 2 are removed from sets 2 and 3 because if you choose the 1 or 2 from these sets you'll only have 2 values left for sets 1, 4 and 5, so you will always have duplicates in tuples that look like (_,1,_,_,_) or like (_,_,2,_,_).

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  • php array_unique

    - by dotty
    HAy, i have an array Array( [0] => Array ( [0] => 33 [user_id] => 33 [1] => 3 [frame_id] => 3 ) [1] => Array ( [0] => 33 [user_id] => 33 [1] => 3 [frame_id] => 3 ) [2] => Array ( [0] => 33 [user_id] => 33 [1] => 8 [frame_id] => 8 ) [3] => Array ( [0] => 33 [user_id] => 33 [1] => 3 [frame_id] => 3 ) [4] => Array ( [0] => 33 [user_id] => 33 [1] => 3 [frame_id] => 3 ) ) As you can see key 0 is the same as 1,3 and 4. And key 2 is different from them all. When running the array_unique function on them, the only left is Array ( [0] => Array ( [0] => 33 [user_id] => 33 [1] => 3 [frame_id] => 3 ) ) any ideas why array_unique isn't working as expected?

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  • How can I change the precision of printing with the stl?

    - by mmr
    This might be a repeat, but my google-fu failed to find it. I want to print numbers to a file using the stl with the number of decimal places, rather than overall precision. So, if I do this: int precision = 16; std::vector<double> thePoint(3); thePoint[0] = 86.3671436; thePoint[0] = -334.8866574; thePoint[0] = 24.2814; ofstream file1(tempFileName, ios::trunc); file1 << std::setprecision(precision) << thePoint[0] << "\\" << thePoint[1] << "\\" << thePoint[2] << "\\"; I'll get numbers like this: 86.36714359999999\-334.8866574\24.28140258789063 What I want is this: 86.37\-334.89\24.28 In other words, truncating at two decimal points. If I set precision to be 4, then I'll get 86.37\-334.9\24.28 ie, the second number is improperly truncated. I do not want to have to manipulate each number explicitly to get the truncation, especially because I seem to be getting the occasional 9 repeating or 0000000001 or something like that that's left behind. I'm sure there's something obvious, like using the printf(%.2f) or something like that, but I'm unsure how to mix that with the stl << and ofstream.

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  • sqrt(int_value + 0.0) -- Does it have a purpose?

    - by Earlz
    Hello, while doing some homework in my very strange C++ book, which I've been told before to throw away, had a very peculiar code segment. I know homework stuff always throws in extra "mystery" to try to confuse you like indenting 2 lines after a single-statement for-loop. But this one I'm confused on because it seems to serve some real-purpose. basically it is like this: int counter=10; ... if(pow(floor(sqrt(counter+0.0)),2) == counter) ... I'm interested in this part especially: sqrt(counter+0.0) Is there some purpose to the +0.0? Is this the poormans way of doing a static cast to a double? Does this avoid some compiler warning on some compiler I do not use? The entire program printed the exact same thing and compiled without warnings on g++ whenever I left out the +0.0 part. Maybe I'm not using a weird enough compiler? Edit: Also, does gcc just break standard and not make an error for Ambiguous reference since sqrt can take 3 different types of parameters? [earlz@EarlzBeta-~/projects/homework1] $ cat calc.cpp #include <cmath> int main(){ int counter=0; sqrt(counter); } [earlz@EarlzBeta-~/projects/homework1] $ g++ calc.cpp /usr/lib/libstdc++.so.47.0: warning: strcpy() is almost always misused, please use strlcpy() /usr/lib/libstdc++.so.47.0: warning: strcat() is almost always misused, please use strlcat() [earlz@EarlzBeta-~/projects/homework1] $

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  • Add fields to Django ModelForm that aren't in the model

    - by Cyclic
    I have a model that looks like: class MySchedule(models.Model): start_datetime=models.DateTimeField() name=models.CharField('Name',max_length=75) With it comes its ModelForm: class MyScheduleForm(forms.ModelForm): startdate=forms.DateField() starthour=forms.ChoiceField(choices=((6,"6am"),(7,"7am"),(8,"8am"),(9,"9am"),(10,"10am"),(11,"11am"), (12,"noon"),(13,"1pm"),(14,"2pm"),(15,"3pm"),(16,"4pm"),(17,"5pm"), (18,"6pm" startminute=forms.ChoiceField(choices=((0,":00"),(15,":15"),(30,":30"),(45,":45")))),(19,"7pm"),(20,"8pm"),(21,"9pm"),(22,"10pm"),(23,"11pm"))) class Meta: model=MySchedule def clean(self): starttime=time(int(self.cleaned_data.get('starthour')),int(self.cleaned_data.get('startminute'))) return self.cleaned_data try: self.instance.start_datetime=datetime.combine(self.cleaned_data.get("startdate"),starttime) except TypeError: raise forms.ValidationError("There's a problem with your start or end date") Basically, I'm trying to break the DateTime field in the model into 3 more easily usable form fields -- a date picker, an hour dropdown, and a minute dropdown. Then, once I've gotten the three inputs, I reassemble them into a DateTime and save it to the model. A few questions: 1) Is this totally the wrong way to go about doing it? I don't want to create fields in the model for hours, minutes, etc, since that's all basically just intermediary data, so I'd like a way to break the DateTime field into sub-fields. 2) The difficulty I'm running into is when the startdate field is blank -- it seems like it never gets checked for non-blankness, and just ends up throwing up a TypeError later when the program expects a date and gets None. Where does Django check for blank inputs, and raise the error that eventually goes back to the form? Is this my responsibility? If so, how do I do it, since it doesn't evaluate clean_startdate() since startdate isn't in the model. 3) Is there some better way to do this with inheritance? Perhaps inherit the MyScheduleForm in BetterScheduleForm and add the fields there? How would I do this? (I've been playing around with it for over an hours and can't seem to get it) Thanks! [Edit:] Left off the return self.cleaned_data -- lost it in the copy/paste originally

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  • Can I write this regex in one step?

    - by Marin Doric
    This is the input string "23x +y-34 x + y+21x - 3y2-3x-y+2". I want to surround every '+' and '-' character with whitespaces but only if they are not allready sourrounded from left or right side. So my input string would look like this "23x + y - 34 x + y + 21x - 3y2 - 3x - y + 2". I wrote this code that does the job: Regex reg1 = new Regex(@"\+(?! )|\-(?! )"); input = reg1.Replace(input, delegate(Match m) { return m.Value + " "; }); Regex reg2 = new Regex(@"(?<! )\+|(?<! )\-"); input = reg2.Replace(input, delegate(Match m) { return " " + m.Value; }); explanation: reg1 // Match '+' followed by any character not ' ' (whitespace) or same thing for '-' reg2 // Same thing only that I match '+' or '-' not preceding by ' '(whitespace) delegate 1 and 2 just insert " " before and after m.Value ( match value ) Question is, is there a way to create just one regex and just one delegate? i.e. do this job in one step? I am a new to regex and I want to learn efficient way.

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  • Newbie question: How do you layout an icon, 2 text lines and a button?

    - by Keith Barrows
    I am trying to extend a sample I found at http://developer.android.com/resources/articles/layout-tricks-efficiency.html. I am a brand new MonoDroid developer, just installed it yesterday, and trying to jump right into UI design and so far it is not clicking for me completely. I have this main.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:padding="6dip"> <ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_marginRight="6dip" android:src="@drawable/icon" /> <TextView android:id="@+id/secondLine" android:layout_width="200dip" android:layout_height="26dip" android:layout_toRightOf="@id/icon" android:layout_alignParentBottom="true" android:layout_alignParentRight="true" android:singleLine="true" android:ellipsize="marquee" android:text="Second line which is a long line of text and needs to scroll" /> <TextView android:id="@+id/firstLine" android:layout_width="200dip" android:layout_height="wrap_content" android:layout_toRightOf="@id/icon" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_above="@id/secondLine" android:layout_alignWithParentIfMissing="true" android:singleLine="true" android:ellipsize="marquee" android:gravity="center_vertical" android:text="First line" /> <Button android:id="@+id/logonButton" android:layout_width="50dip" android:layout_height="wrap_content" android:layout_toRightOf="@id/secondLine" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:gravity="center_vertical" android:text="Login" /> /> </RelativeLayout> What I am trying to do is have an icon on the left, 2 lines of text stacked in the middle and a button on the right. When I run this in my emulator I am seeing: The second line is not scrolling. The button does not show up. Is there by any chance a simple WYSIWYG editor for layout? Or is there an app to give me a quick view of my layout XML? Something like FireBug in FireFox would be fine. Barring the slim chance there are UI helpers for Droid, what am I doing wrong? :)

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  • iPhone: TableView inside UIScrollview, show vaccillating scrollbars around

    - by karim
    Hi, I have added some table and other vies in a scrollview. scrolling in tables are working fine. But in the parent scrollview, when scrolling, a vacillating vertical scrollbars are shown, sometimes it even come to the middle of the screen. sometime show at the left side of the screen. and not limited to the vertical scrollbar region. When I set tje showsVerticalScrollIndicator = NO, it is not shown. But do you know why the scrollbar is moving around. DashboardView is a subclass of UIScrollView. dashboard=[[DashboardView alloc] initWithFrame:fullScreenRect]; dashboard.contentSize = CGSizeMake(320,700); // must do! dashboard.showsVerticalScrollIndicator = YES; dashboard.bounces = YES; self.view = dashboard; @implementation DashboardView (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { // Initialization code } return self; } (void)drawRect:(CGRect)rect { // Drawing code } (void) layoutSubviews{ NSArray *views = self.subviews; [UIView beginAnimations:@"CollapseExpand" context:nil]; [UIView setAnimationDuration:0.5]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; UIView *view = [views objectAtIndex: 0]; CGRect rect = view.frame; for (int i = 1; i < [views count]; i++ ) { view = [views objectAtIndex:i]; view.frame = CGRectMake(rect.origin.x, rect.origin.y + rect.size.height, view.frame.size.width, view.frame.size.height); rect = view.frame; } [UIView commitAnimations]; }

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  • Validating Application Settings Key Values in Isolated Storage for Windows Phone Applications

    - by Martin Anderson
    Hello everyone. I am very new at all this c# Windows Phone programming, so this is most probably a dumb question, but I need to know anywho... IsolatedStorageSettings appSettings = IsolatedStorageSettings.ApplicationSettings; if (!appSettings.Contains("isFirstRun")) { firstrunCheckBox.Opacity = 0.5; MessageBox.Show("isFirstRun not found - creating as true"); appSettings.Add("isFirstRun", "true"); appSettings.Save(); firstrunCheckBox.Opacity = 1; firstrunCheckBox.IsChecked = true; } else { if (appSettings["isFirstRun"] == "true") { firstrunCheckBox.Opacity = 1; firstrunCheckBox.IsChecked = true; } else if (appSettings["isFirstRun"] == "false") { firstrunCheckBox.Opacity = 1; firstrunCheckBox.IsChecked = false; } else { firstrunCheckBox.Opacity = 0.5; } } I am trying to firstly check if there is a specific key in my Application Settings Isolated Storage, and then wish to make a CheckBox appear checked or unchecked depending on if the value for that key is "true" or "false". Also I am defaulting the opacity of the checkbox to 0.5 opacity when no action is taken upon it. With the code I have, I get the warnings Possible unintended reference comparison; to get a value comparison, cast the left hand side to type 'string' Can someone tell me what I am doing wrong. I have explored storing data in an Isolated Storage txt file, and that worked, I am now trying Application Settings, and will finally try to download and store an xml file, as well as create and store user settings into an xml file. I want to try understand all the options open to me, and use which ever runs better and quicker

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  • Problem after dismissing a modal view used in conjunction with a uisplitviewcontroller

    - by user336274
    I'm having a hard time understanding why the following is happening (and how to fix it). I've created an application using the split-view based application. I've added a UiBarButtonItem called showTheModal which calls this method found in RootViewController.m: - (IBAction)showTheModal:(id)sender { theModalController.modalPresentationStyle = UIModalPresentationFullScreen; theModalController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self presentModalViewController:theModalController animated:YES]; if ([detailViewController popoverController] != nil) [[detailViewController popoverController] dismissPopoverAnimated:YES]; The BarButtonItem of course, is shown at the bottom of the Default Root Controller (left side of the of the split view in landscape) or at the bottom of the popup (if in landscape). The modal view is dismissed by a button placed in a toolbar. It calls the following: [self dismissModalViewControllerAnimated: YES]; The problem I'm having is if rotate the screen, while the modal is up. Here is what happens in different scenarios (start refers to the orientation when the showTheModal button is hit, end refers to the orientation when I hit the dismissModal button). 1)Start landscape, end landscape: Everything appears fine. willHideViewController and willShowViewController methods are not called in the RootViewController (as expected) 2) Start landscape, end portrait: UI appears fine. willHideViewController is run TWICE (WHY?) 3) Start portrait, end portrait: UI appears fine. willHideViewController is run once (as expected) 4) Start portrait, end landscape: The 'Root List' button remains in the detail view (right side of the split view. Neither willHideViewController and willShowViewController are invoked (WHY??) Any thoughts as to why #2 and #4 don't behave quite the expected way?

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  • Add note model in Rails

    - by dannymcc
    Hi Everyone, I am following the 15 minute blog tutorial on Ruby on Rails .com: http://media.rubyonrails.org/video/rails_blog_2.mov and am stumbling into some issues. I am using the following alterations to the names in the tutorial: posts = kases comments = notes I have setup the models as follows: class Kase < ActiveRecord::Base validates_presence_of :jobno has_many :notes belongs_to :company # foreign key: company_id belongs_to :person # foreign key in join table belongs_to :surveyor, :class_name => "Company", :foreign_key => "appointedsurveyor_id" belongs_to :surveyorperson, :class_name => "Person", :foreign_key => "surveyorperson_id" def to_param jobno end and... class Note < ActiveRecord::Base belongs_to :kase end The Notes controller look like this: # POST /notes # POST /notes.xml def create @kase = Kase.find(params[:kase_id]) @note = @kase.notes.build(params[:note]) redirect_to @kase end and the database scheme for Kases looks like this: create_table "notes", :force => true do |t| t.integer "kase_id" t.text "body" t.datetime "created_at" t.datetime "updated_at" end and for kases... create_table "kases", :force => true do |t| t.string "jobno" t.date "dateinstructed" t.string "clientref" t.string "clientcompanyname" t.text "clientcompanyaddress" t.string "clientcompanyfax" t.string "casehandlername" t.string "casehandlertel" t.string "casehandleremail" t.text "casesubject" t.string "transport" t.string "goods" t.string "claimantname" t.string "claimantaddressline1" t.string "claimantaddressline2" t.string "claimantaddressline3" t.string "claimantaddresscity" t.string "claimantaddresspostcode" t.string "claimantcontact" t.string "claimanttel" t.string "claimantmob" t.string "claimantemail" t.string "claimanturl" t.string "lyingatlocationname" t.string "lyingatlocationaddressline1" t.string "lyingatlocationaddressline2" t.string "lyingatlocationaddressline3" t.string "lyingatlocationaddresscity" t.string "lyingatlocationaddresspostcode" t.string "lyingatlocationcontactname" t.string "lyingattel" t.string "lyingatmobile" t.string "lyingatlocationurl" t.text "comments" t.string "invoicenumber" t.string "netamount" t.string "vat" t.string "grossamount" t.date "dateclosed" t.date "datepaid" t.datetime "filecreated" t.string "avatar_file_name" t.string "avatar_content_type" t.integer "avatar_file_size" t.datetime "avatar_updated_at" t.datetime "created_at" t.datetime "updated_at" t.string "kase_status" t.string "invoice_date" t.integer "surveyorperson_id" t.integer "appointedsurveyor_id" t.integer "person_id" t.string "company_id" t.string "dischargeamount" t.string "dishchargeheader" t.text "highrisesubject" end Whenever I enter a note into the kase show view's note entry form: <h2>Notes</h2> <div id="sub-notes"> <%= render :partial => @kase.notes %> </div> <% form_for [@kase, Note.new] do |f| %> <p> <%= f.label :body, "New Note" %><br /> <%= f.text_area :body %> </p> <p><%= f.submit "Add Note" %></p> <% end %> partial: <% div_for note do %> <p> <strong>Created <%= time_ago_in_words(note.created_at) %> ago</strong><br /> <%= h(note.body) %> </p> <% end %> I get the following error: ActiveRecord::RecordNotFound in NotesController#create Couldn't find Kase with ID=Test Case I have tried removing the def to_param jobno end from the kase model, but the same error shows. Any ideas what I'm missing? Thanks, Danny

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  • Frame Accurate Browser Launchable Video Player ... ?

    - by cliftonc
    I have a requirement where I need to enable playback (full screen) of a h.264 MPEG4 (thanks for the correction!) video from a local network, launchable from a browser link on a Windows workstation, and be frame accurate. By frame accurate I mean that I need to be able to scrub through the video in the same way you would with a vtr, stop at a frame, and then move backwards and forwards frame by frame (it is for a very specific compliance requirement where have to be able to check every frame if there is something that is potentially against broadcasting guidelines). The application itself is used to capture notes while viewing the material, so the end model is for a dual monitor workstation, with a web form in one, the video playing full screen in the second (no issue launching the video and manually having to move it to the second screen), and then the user controls the video via keyboard shortcuts or a jog shuttle. I have looked at QT, but the java bindings seem to be dead or nearly so, flash isn't frame accurate, VLC given its streaming heritage seems to be only able to move forward by a frame and not backwards, and all I have left are commercial offerings that in my experience are difficult and expensive to change. Any ideas of where I should look or alternative options? Any advice appreciated!

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  • WPF toolbar disappearing on resize

    - by user1122909
    On my main form I have a toolbar with a number of buttons. Once the parent form is resized down by dragging it so that the entire toolbar with all its buttons no longer fits in the width of the window, the whole toolbar disappears. Is there a way I can make it so that as you resize it, when you get to the width of the toolbar the inner controls of the form stop resizing and stay displayed, just cut off where the window has resized to? Code is <Grid > <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> <RowDefinition Height="*" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <ToolBar Grid.Row="1" Height="50" Name="tbMainToolbar" VerticalAlignment="Top" MinWidth="900" > <ToolBar.Background> <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1"> <GradientStop Color="White" Offset="0.0" /> <GradientStop Color="#DCEBFF" Offset="0.25" /> <GradientStop Color="#99CCFF" Offset="0.75" /> <GradientStop Color="#99CCFF" Offset="1.0" /> </LinearGradientBrush> </ToolBar.Background> <DockPanel LastChildFill="True"> <Button Name="btnApproved" DockPanel.Dock="Left" Click="btnToolbar_Click" CommandParameter="APPROVED" Style="{StaticResource ToolbarButtonDisplay}" HelperClasses:ButtonProperties.Image="..\..\Resources\Images\APPROVEU.GIF" Content="Approve"> </Button> ... and so forth for about 20 buttons

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  • What ever happened to APL?

    - by lkessler
    When I was at University 30 years ago, I used a programming language called APL. I believe the acronym stood for "A Programming Language", This language was interpretive and was especially useful for array and matrix operations with powerful operators and library functions to help with that. Did you use APL? Is this language still in use anywhere? Is it still available, either commercially or open source? I remember the combinatorics assignment we had. It was complex. It took a week of work for people to program it in PL/1 and those programs ranged from 500 to 1000 lines long. I wrote it in APL in under an hour. I left it at 10 lines for readability, although I should have been a purist and worked another hour to get it into 1 line. The PL/1 programs took 1 or 2 minutes to run on the IBM mainframe and solve the problem. The computer charge was $20. My APL program took 2 hours to run and the charge was $1,500 which was paid for by our Computer Science Department's budget. That's when I realized that a week of my time is worth way more than saving some $'s in someone else's budget. I got an A+ in the course. p.s. Don't miss this presentation entitled: "APL one of the greatest programming languages ever"

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  • jquery Uncaught SyntaxError: Unexpected token )

    - by js00831
    I am getting a jquery error in my code... can you guys tell me whats the reason for this when you click the united states red color button in this link you will see this error http://jsfiddle.net/SSMX4/88/embedded/result/ function checkCookie(){ var cookie_locale = readCookie('desired-locale'); var show_blip_count = readCookie('show_blip_count'); var tesla_locale = 'en_US'; //default to US var path = window.location.pathname; // debug.log("path = " + path); var parsed_url = parseURL(window.location.href); var path_array = parsed_url.segments; var path_length = path_array.length var locale_path_index = -1; var locale_in_path = false; var locales = ['en_AT', 'en_AU', 'en_BE', 'en_CA', 'en_CH', 'de_DE', 'en_DK', 'en_GB', 'en_HK', 'en_EU', 'jp', 'nl_NL', 'en_US', 'it_IT', 'fr_FR', 'no_NO'] // see if we are on a locale path $.each(locales, function(index, value){ locale_path_index = $.inArray(value, path_array); if (locale_path_index != -1) { tesla_locale = value == 'jp' ? 'ja_JP':value; locale_in_path = true; } }); // debug.log('tesla_locale = ' + tesla_locale); cookie_locale = (cookie_locale == null || cookie_locale == 'null') ? false:cookie_locale; // Only do the js redirect on the static homepage. if ((path_length == 1) && (locale_in_path || path == '/')) { debug.log("path in redirect section = " + path); if (cookie_locale && (cookie_locale != tesla_locale)) { // debug.log('Redirecting to cookie_locale...'); var path_base = ''; switch (cookie_locale){ case 'en_US': path_base = path_length > 1 ? path_base:'/'; break; case 'ja_JP': path_base = '/jp' break; default: path_base = '/' + cookie_locale; } path_array = locale_in_path != -1 ? path_array.slice(locale_in_path):path_array; path_array.unshift(path_base); window.location.href = path_array.join('/'); } } // only do the ajax call if we don't have a cookie if (!cookie_locale) { // debug.log('doing the cookie check for locale...') cookie_locale = 'null'; var get_data = {cookie:cookie_locale, page:path, t_locale:tesla_locale}; var query_country_string = parsed_url.query != '' ? parsed_url.query.split('='):false; var query_country = query_country_string ? (query_country_string.slice(0,1) == '?country' ? query_country_string.slice(-1):false):false; if (query_country) { get_data.query_country = query_country; } $.ajax({ url:'/check_locale', data:get_data, cache: false, dataType: "json", success: function(data){ var ip_locale = data.locale; var market = data.market; var new_locale_link = $('#locale_pop #locale_link'); if (data.show_blip && show_blip_count < 3) { setTimeout(function(){ $('#locale_msg').text(data.locale_msg); $('#locale_welcome').text(data.locale_welcome); new_locale_link[0].href = data.new_path; new_locale_link.text(data.locale_link); new_locale_link.attr('rel', data.locale); if (!new_locale_link.hasClass(data.locale)) { new_locale_link.addClass(data.locale); } $('#locale_pop').slideDown('slow', function(){ var hide_blip = setTimeout(function(){ $('#locale_pop').slideUp('slow', function(){ var show_blip_count = readCookie('show_blip_count'); if (!show_blip_count) { createCookie('show_blip_count',1,360); } else if (show_blip_count < 3 ) { var b_count = show_blip_count; b_count ++; eraseCookie('show_blip_count'); createCookie('show_blip_count',b_count,360); } }); },10000); $('#locale_pop').hover(function(){ clearTimeout(hide_blip); },function(){ setTimeout(function(){$('#locale_pop').slideUp();},10000); }); }); },1000); } } }); } }

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