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• PyQt - How to connect multiple signals to the same widget

  - by Orchainu

  [ ]All1 [ ]All2 [ ]checkbox1A [ ]checkbox1B [ ]checkbox2A [ ]checkbox2B Based on the chart above, a few things need to happen: The All checkboxes only affect the on/off of the column it resides in, and checks on/off all the checkboxes in that column. All checkboxes work in pairs, so if checkbox1A is on/off, checkbox1B needs to be on/off If an All checkbox is checked on, and then the user proceeds to check off one or more checkbox in the column, the All checkbox should be unchecked, but all the checkboxes that are already checked should remain checked. So really this is more like a chain reaction setup. If checkbox All1 is on, then chieckbox1A and 2A will be on, and because they are on, checkbox1B and 2B are also on, but checkbox All2 remains off. I tried hooking up the signals based on this logic, but only the paired logic works 100%. The All checkbox logic only works 50% of the time, and not accurately, and there's no way for me to turn off the All checkbox without turning all already checked checkboxes off. Really really need help ... T-T Sample code: cbPairKeys = cbPairs.keys() for key in cbPairKeys: cbOne = cbPairs[key][0][0] cbTwo = cbPairs[key][1][0] cbOne.stateChanged.connect(self.syncCB) cbTwo.stateChanged.connect(self.syncCB) def syncCB(self): pairKeys = cbPairs.keys() for keys in pairKeys: cbOne = cbPairs[keys][0][0] cbOneAllCB = cbPairs[keys][0][4] cbTwo = cbPairs[keys][1][0] cbTwoAllCB = cbPairs[keys][1][4] if self.sender() == cbOne: if cbOne.isChecked() or cbTwoAllCB.isChecked(): cbTwo.setChecked(True) else: cbTwo.setChecked(False) else: if cbTwo.isChecked() or cbOneAllCB.isChecked(): cbOne.setChecked(True) else: cbOne.setChecked(False) EDIT Thanks to user Avaris's help and patience, I was able to reduce the code down to something much cleaner and works 100% of the time on the 1st and 2nd desired behavior: #Connect checkbox pairs cbPairKeys = cbPairs.keys() for key in cbPairKeys: cbOne = cbPairs[key][0][0] cbTwo = cbPairs[key][1][0] cbOne.toggled.connect(cbTwo.setChecked) cbTwo.toggled.connect(cbOne.setChecked) #Connect allCB and allRO signals cbsKeys = allCBList.keys() for keys in cbsKeys: for checkbox in allCBList[keys]: keys.toggled.connect(checkbox.setChecked) Only need help on turning off the All checkbox when the user selectively turns off the modular checkboxes now

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• Clear button at uisearchbar not working at all

  - by kevin.ng

  I created a search bar programmatically and added to my view using the codes below: - (void)viewDidLoad { searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(xPositionForSearchBar, yPositionForSearchBar, widthForSearchBar, heightForSearchBar)]; UIView *bg = [[searchBar subviews] objectAtIndex:0]; searchBar.delegate = self; searchBar.placeholder = @"Search record"; for(UIView *view in searchBar.subviews){ if([view isKindOfClass:[UITextField class]]){ UITextField *tf = (UITextField *)view; tf.delegate = self; break; } } [bg removeFromSuperview]; [self.view addSubview: searchBar]; } The code is implemented with UISearchBarDelegate and UITextFieldDelegate. I have tried using - (void)searchBarCancelButtonClicked:(UISearchBar *)aSearchBar { NSLog(@"cancel clicked"); searchBar.text = @""; [aSearchBar resignFirstResponder]; } - (BOOL)textFieldShouldClear:(UITextField *)textField { NSLog(@"clear"); [self performSelector:@selector(searchBarCancelButtonClicked:) withObject:searchBar afterDelay: 0.1]; return YES; } and yet, the text inside the searchBar is not cleared at all when i click on the "clear button" - a circle with a "X" inside. The clear button works when I implemented it in IB. Wonder why? Kindly advice, many thanks.

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• How do I know when to increase or decrease angle to get a specific angle?

  - by Thomas

  Hi. I am programming a game and I have come to a very hard spot. Basically I have a circle and I have 2 angles on this circle. Angle 1 (A) is a point I want angle 2 (B) to go to. During my game every frame I need to check weither or not to increase or decrease my angle value by a certain amount (speed) to eventually reach the first angle. My question is how do I do this? I tried doing this but I don't seem to be doing it right. bool increase = false; float B = [self radiansToDegrees:tankAngle]; float A = [self radiansToDegrees:tankDestinationAngle]; float newAngle = B; if(B < A) { float C = B - (360 - A); float D = A - B; if(C < D) increase = false; else increase = true; } else if(B A) { float C = B - A; float D = A - (360 - B); if(C < D) increase = false; else increase = true; } if(increase) { newAngle += 1.0; } else { newAngle -= 1.0; } if(newAngle 360.0) { newAngle = 0 + (newAngle - 360.0); } else if(newAngle < 0.0) { newAngle = 360 + newAngle; } if(newAngle == 0) newAngle = 360; newAngle = [self degreesToRadians:newAngle]; [self setTanksProperPositionRotation:newAngle]; The basic effect I am trying to achieve is when the user makes a new point, which would be angle 1, angle 2 would move towards angle 1 choosing the fastest direction. I think I have spent around 4 hours trying to figure this out.

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• NSInvocation making app crash

  - by neha

  Hi all, I'm using NSInvocation as follows: In my init, I'm writing this in my viewDidLoad: SEL mySelector; mySelector = @selector(initParsersetId:type:); NSMethodSignature * sig = nil; sig = [[self class] instanceMethodSignatureForSelector:mySelector]; myInvocation = nil; myInvocation = [NSInvocation invocationWithMethodSignature:sig]; [myInvocation setTarget:self]; [myInvocation setSelector:mySelector]; SEL mySelector; mySelector = @selector(initParsersetId:type:); NSMethodSignature * sig = nil; sig = [[self class] instanceMethodSignatureForSelector:mySelector]; myInvocation = nil; myInvocation = [NSInvocation invocationWithMethodSignature:sig]; [myInvocation setTarget:self]; [myInvocation setSelector:mySelector]; And I'm calling it like this: Idea *tempIdea = [[Idea alloc]init]; tempIdea = [genericArray objectAtIndex:indexPath.row]; idea.ideaId = tempIdea.ideaId; [tempIdea release]; NSNumber *_id_ = [NSNumber numberWithInt:idea.ideaId]; [myInvocation setArgument:_id_ atIndex:2]; //CRASHING AT THIS LINE My application is crashing at the indicated line. Can anybody please help me?

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• How can I pass an array resulting from a Perl method by reference?

  - by arareko

  Some XML::LibXML methods return arrays instead of references to arrays. Instead of doing this: $self->process_items($xml->findnodes('items/item')); I want to do something like: $self->process_items(\$xml->findnodes('items/item')); So that in process_items() I can dereference the original array instead of creating a copy: sub process_items { my ($self, $items) = @_; foreach my $item (@$items) { # do something... } } I can always store the results of findnodes() into an array and then pass the array reference to my own method, but let's say I want to try a reduced version of my code. Is that the correct syntax for passing the method results or should I use something different? Thanks! EDIT: Now suppose I want to change process_items() to process_item() so I can do stuff on a single element of the referenced array inside a loop. Something like: $self->process_item($_) for ([ $xml->findnodes('items/item') ]); This doesn't work as process_item() is executed only once because a single value is passed to the for loop (the reference to the array from findnodes()). What's the proper way of using $_ in this case?

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• Method invoked but not returning anything

  - by or azran

  i am calling this method from a touch in UITableViewCell , -(void)PassTitleandiMageByindex:(NSString *)number{ NSLog(@"index : %d",number.intValue); NSArray *objectsinDictionary = [[[NSArray alloc]init]autorelease]; objectsinDictionary = [[DataManeger sharedInstance].sortedArray objectAtIndex:number.intValue]; if ([objectsinDictionary count] > 3) { ProductLabel = [objectsinDictionary objectAtIndex:3]; globaliMageRef = [objectsinDictionary objectAtIndex:2]; [self performSegueWithIdentifier:@"infoseg" sender:self]; }else{ mQid = [objectsinDictionary objectAtIndex:1]; globaliMageRef = [objectsinDictionary objectAtIndex:2]; [mIQEngines Result:mQid]; NSLog(@"mQid : %@ Global : %@",mQid,globaliMageRef); }} Problem:- i am trying to get the same functionality programmatically by calling [self PassTitleandiMageByindex:stringNumber]; when i am calling this programmatically i can see the debug log getting in the place it should be, but nothing happens (by pressing the UITableViewCellon the screen) here is how it turns on by touch, - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ [tableView deselectRowAtIndexPath:indexPath animated:YES]; NSString *st = [NSString stringWithFormat:@"%d",[indexPath row]]; [self PassTitleandiMageByindex:st];} I have also tried to call the table-view delegate by :[[Tview delegate] tableView:Tview didSelectRowAtIndexPath:selectedCellIndexPath]; but, nothing happened.

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• Designing a database for a user/points system? (in Django)

  - by AP257

  First of all, sorry if this isn't an appropriate question for StackOverflow. I've tried to make it as generalisable as possible. I want to create a database (MySQL, site running Django) that has users, who can be allocated a certain number of points for various types of action - it's a collaborative game. My requirements are to obtain: the number of points a user has the user's ranking compared to all other users and the overall leaderboard (i.e. all users ranked in order of points) This is what I have so far, in my Django models.py file: class SiteUser(models.Model): name = models.CharField(max_length=250 ) email = models.EmailField(max_length=250 ) date_added = models.DateTimeField(auto_now_add=True) def points_total(self): points_added = PointsAdded.objects.filter(user=self) points_total = 0 for point in points_added: points_total += point.points return points_total class PointsAdded(models.Model): user = models.ForeignKey('SiteUser') action = models.ForeignKey('Action') date_added = models.DateTimeField(auto_now_add=True) def points(self): points = Action.objects.filter(action=self.action) return points class Action(models.Model): points = models.IntegerField() action = models.CharField(max_length=36) However it's rapidly becoming clear to me that it's actually quite complex (in Django query terms at least) to figure out the user's ranking and return the leaderboard of users. At least, I'm finding it tough. Is there a more elegant way to do something like this? This question seems to suggest that I shouldn't even have a separate points table - what do people think? It feels more robust to have separate tables, but I don't have much experience of database design.

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• How to compare 2 button title using index or tag value

  - by fasil moham

  Here my application i having set of button 12 buttons,button titles are hidden by default.Button titles are shown when it is clikced , -(IBAction)buttonAction:(id)sender { UIButton *button = (UIButton *)sender; int index = button.tag; [self showing:index]; //now, this method accepts a parameter. } -(void) showing:(NSInteger)index { UIButton* btn = nil; index = index - 1; NSArray* subViewArray = [self.view subviews]; NSInteger i = 0; for (UIView *view in subViewArray) { if ([view isKindOfClass:[UIButton class]]) { btn = (UIButton*) view; NSString* text; if (i == index) { text = [self.textArray objectAtIndex:i]; //put the array that you are using self.previousButtonTag = i; //make a class variable }else { text = @""; } i++; [btn setTitle:text forState:UIControlStateNormal]; } } } 1.I want to compare two button title values to check whether it is equal or not.Im facing the problem , 2.Only press button title only visible,when i click other button previous title is hided,I want to enable two button title on click and wen it is wrong it should be hided.Please suggest me the How to solve this issue,Please do the needfully

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• [Ruby On Rails] belongs_to with :class_name option fails.

  - by crackpot

  I have no idea what went wrong but I can't get belongs_to work with :class_name option. Could somebody enlighten me. Thanks a lot! Here is a snip from my code. class CreateUsers < ActiveRecord::Migration def self.up create_table :users do |t| t.text :name end end def self.down drop_table :users end end ##################################################### class CreateBooks < ActiveRecord::Migration def self.up create_table :books do |t| t.text :title t.integer :author_id, :null => false end end def self.down drop_table :books end end ##################################################### class User < ActiveRecord::Base has_many: books end ##################################################### class Book < ActiveRecord::Base belongs_to :author, :class_name => 'User', :validate => true end ##################################################### class BooksController < ApplicationController def create user = User.new({:name => 'John Woo'}) user.save @failed_book = Book.new({:title => 'Failed!', :author => @user}) @failed_book.save # missing author_id @success_book = Book.new({:title => 'Nice day', :author_id => @user.id}) @success_book.save # no error! end end environment: ruby 1.9.1-p387 Rails 2.3.5

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• Moving Computer Player in Xcode

  - by user1631497

  I am working on a 2d game using xcode and objective-c. I am trying to make my enemy player move left if I am left of him, until he is touching my character. The same will go when I am right of him. Basically just trying to get him to move towards me. But my code to do so is not working. So I have my code that says the following -(void)moveTowardsCharacter { enemyLeftTimer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(goEnemyLeft) userInfo:nil repeats:YES]; if (enemyLeftTimer == nil){ enemyLeftTimer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(goEnemyLeft) userInfo:nil repeats:YES]; } } -(IBAction)enemyStopLeft { if (CGRectIntersectsRect(bluebox.frame, redbox.frame)) { [enemyLeftTimer invalidate]; enemyLeftTimer = nil; } } -(void)goEnemyLeft { if (redbox.center.x + [self getRedboxWidthLeft] > bluebox.center.x + [self getBlueboxWidthRight]) { redbox.center = CGPointMake(redbox.center.x -5, redbox.center.y); } } So the first bit is saying for it to set up a timer to continue moving left. The next will stop the timer if my player(bluebox) and the Computer player(redbox) collide. Finally, the thing that actually tells it to go left, but only if the bluebox is left of the redbox. The getRedBoxWidth Left and getBlueBoxWidthRight are just voids that get, well, the left and right edges. If you could, please help try and solve this code. Thank You.

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• two view controllers and reusability with delegate

  - by netcharmer

  Newbie question about design patterns in objC. I'm writing a functionality for my iphone app which I plan to use in other apps too. The functionality is written over two classes - Viewcontroller1 and Viewcontroller2. Viewcontroller1 is the root view of a navigation controller and it can push Viewcontroller2. Rest of the app will use only ViewController1 and will never access Viewcontroller2 directly. However, triggered by user events, Viewcontroller2 has to send a message to the rest of the app. My question is what is the best way of achieving it? Currently, I use two level of delegation to send the message out from Viewcontroller2. First send it to Viewcontroller1 and then let Viewcontroller1 send it to rest of the app or the application delegate. So my code looks like - //Viewcontroller1.h @protocol bellDelegate -(int)bellRang:(int)size; @end @interface Viewcontroller1 : UITableViewController <dummydelegate> { id <bellDelegate> delegate; @end //Viewcontroller1.m @implementation Viewcontroller1 -(void)viewDidLoad { //some stuff here Viewcontroller2 *vc2 = [[Viewcontroller2 alloc] init]; vc2.delegate = self; [self.navigationController pushViewController:vc2 animated:YES]; } -(int)dummyBell:(int)size { return([self.delegate bellRang:size]); } //Viewcontroller2.h @protocol dummyDelegate -(int)dummyBell:(int)size; @end @interface Viewcontroller2 : UITableViewController { id <dummyDelegate> delegate; @end //Viewcontroller2.m @implementation Viewcontroller2 -(int)eventFoo:(int)size { rval = [self.delegate dummyBell:size]; } @end

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• How to set the attributes of cell progamatically without using nib file ?

  - by srikanth rongali

  - (void)viewDidLoad { [super viewDidLoad]; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. self.title = @"Library"; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleBordered target:self action:@selector(close:)]; self.tableView.rowHeight = 80; } -(void)close:(id)sender { // } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease]; UILabel *dateLabel = [[UILabel alloc]init]; dateLabel.frame = CGRectMake(85.0f, 6.0f, 200.0f, 20.0f); dateLabel.tag = tag1; [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; cell.contentView.frame = CGRectMake(0.0f, 0.0f, 320.0f, 80.0f); [cell.contentView addSubview:dateLabel]; [dateLabel release]; } // Set up the cell... //[(UILabel *)[cell viewWithTag:tag1] setText:@"Date"]; cell.textLabel.text = @"Date"; return cell; } But the control is not entering into the tableView: method. So I could not see any label in my table. How can I make this ? Thank You

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• Nested modal view controller gives strange message under iOS6?

  - by user1840362

  I am presenting a modal view controller from another modal view controller, and this worked fine under all iOS versions prior to iOS6. But under iOS6 I am getting the following warning message in the emulator: Warning: Attempt to present <UINavigationController: 0x14e93680> on <UINavigationController: 0x9fc6b70> while a presentation is in progress! The modal view controller is not shown if this warning appears. Basically I am using code like this to show the modal view controller: WebAuthViewController *authController = [[WebAuthViewController alloc] initWithNibName:nil bundle:nil]; authController.challenge = challenge; authController.delegate = self; UINavigationController *aNavController = [[UINavigationController alloc] initWithRootViewController:authController]; [self presentModalViewController:aNavController animated:YES]; [aNavController release]; [authController release]; The view that is already shown is a UIWebView also shown in a modal view, like this: WebViewController *addController = [[WebViewController alloc] initWithNibName:nil bundle:nil]; addController.urlToLoad = [NSURL URLWithString:urlString]; addController.delegate = self; UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addController]; navigationController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:navigationController animated:YES]; [navigationController release]; [addController release]; The apple docs still suggest that one is supposed to be able to stack navigation controllers like this, so I am at a loss to explain why this happens. Any hints?

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• Call a Javascript Function with Jquery

  - by danit

  I have two functions in Javascript: function getWindowWidth(){ var x = 0; if (self.innerHeight){ x = self.innerWidth; }else if (document.documentElement && document.documentElement.clientHeight){ x = document.documentElement.clientWidth; }else if (document.body){ x = document.body.clientWidth; }return x; }function getWindowHeight(){ var y = 0; if (self.innerHeight){ y = self.innerHeight; }else if (document.documentElement && document.documentElement.clientHeight){ y = document.documentElement.clientHeight; }else if (document.body){ y = document.body.clientHeight; } These appear to set the height and width of the document window, based on the size of the window? I could be wrong here.... What I have done is embeded a toolbar above this document, this toolbar can be hidden or shown at various points. I need the above function to be called when I use the following jQuery, $("#Main").animate({top: "89px"}, 200); Any assistance greatly appreciated!

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• Remove a ReactiveCocoa signal from a control

  - by dbarros

  If I assign a signal to a property of a control: RAC(self.loginButton.enabled) = [RACSignal combineLatest:@[ self.usernameTextField.rac_textSignal, self.passwordTextField.rac_textSignal ] reduce:^(NSString* username, NSString* password) { return @(username.length > 0 && password.length > 0); }]; But then wanted to assign a different RACSignal to enabled, how can I clear any existing one before doing so? If I try and set it a second time, I get an exception like the following: 2013-10-29 16:54:50.623 myApp[3688:c07] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Signal <RACSignal: 0x975e9e0> name: +combineLatest: ( "<RACSignal: 0x975d600> name: <UITextField: 0x10f2c420> -rac_textSignal", "<RACSignal: 0x975de30> name: <UITextField: 0x10f306e0> -rac_textSignal" ) reduce: is already bound to key path "self.loginButton.enabled" on object <LoginViewController: 0x10f264e0>, adding signal <RACSignal: 0x9763500> name: +combineLatest: ( "<RACSignal: 0x97624f0> name: <UITextField: 0x10f2c420> -rac_textSignal", "<RACSignal: 0x97629e0> name: <UITextField: 0x10f306e0> -rac_textSignal" ) reduce: is undefined behavior'

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• Async run for javascript by using listeners

  - by CharlieShi

  I have two functions, the names are Function3, Function4, Function3 will send request to server side to get jsondata by using ajax, which, however, will take about 3 seconds to complete. Function4 is a common function which will wait for Function3's result and then action. My code puts below: function ajaxRequest(container) { $.ajax({ url: "Home/GetResult", type: "post", success: function (data) { container.append(data.message); } }); } var eventable = { on: function (event, cb) { $(this).on(event, cb); }, trigger: function (event) { $(this).trigger(event); } } var Function3 = { run: function () { var self = this; setTimeout(function () { ajaxRequest($(".container1")); self.trigger('done'); }, 500); } } var Function4 = { run: function () { var self = this; setTimeout(function () { $(".container1").append("Function4 complete"); self.trigger('done'); },500); } } $.extend(Function3, eventable); $.extend(Function4, eventable); Function3.on('done', function (event) { Function4.run(); }); Function4.on('done', function () { $(".container1").append("All done"); }); Function3.run(); but now the problem is, when I start the code , it always show me the result as : first will appear "Function4 complete", then "All done" follows, 3 seconds later, "Function3 complete" will appear. That's out of my expection because my expection is "Function3 complete" comes first, "Function4 complete" comes second and "All done" is expected as the last one. Anyone can help me on this? thx in advice. EDIT: I have included all the functions above now. Also, you can check the js script in JSFIDDER: http://jsfiddle.net/sporto/FYBjc/light/ I have replaced the function in JSFIDDER from a common array push action to ajax request.

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• How to Smooth the drawing Stroke?

  - by user1852420

  I am creating drawing.. i can undo, and put colors on it. but when i draw using my fingers the stroke is not that smooth and has edge lines,, here my codes. on which I can Paint on a view, Undo, change color, and the opacity. stroke.h #import <UIKit/UIKit.h> @interface stroke : UIView{ NSMutableArray *strokeArray; UIColor *strokeColor; int strokeSize; float strokeAlpha; int strokeAlpha2; IBOutlet UISlider *slides; float red; float green; float blue; CGPoint mid1; CGPoint mid2; CGPoint endingPoint,previousPoint1,previousPoint2; CGPoint currentTouch; } @property (nonatomic, retain) UIColor *strokeColor; @property (nonatomic) int strokeSize; @property (nonatomic, retain) NSMutableArray *strokeArray; - (IBAction)changeAlphaValue; -(void)loadSLider; -(void)blueColor; -(void)darkvioletColor; -(void)violetColor; -(void)pinkColor; -(void)darkbrownColor; -(void)redColor; -(void)magentaRedColor; -(void)lightBrownColor; -(void)lightOrangeColor; -(void)OrangeColor; -(void)YellowColor; -(void)greenColor; -(void)lightYellowColor; -(void)darkGreenColor; -(void)TurquioseColor; -(void)PaleTurquioseColor; -(void)skyBlueColor; -(void)whiteColor; -(void)DirtyWhiteColor; -(void)SilverColor; -(void)LightGrayColor; -(void)GrayColor; -(void)LightBlackColor; -(void)BlackColor; @end stroke.m #import "stroke.h" @implementation stroke @synthesize strokeColor; @synthesize strokeSize; @synthesize strokeArray; - (void) awakeFromNib{ self.strokeArray = [[NSMutableArray alloc] init]; self.strokeColor = [UIColor colorWithRed:0 green:0 blue:232 alpha:1]; self.strokeSize = 3; } - (void)drawRect:(CGRect)rect{ NSMutableArray *stroke; for (stroke in strokeArray) { CGContextRef contextRef = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(contextRef, [[stroke objectAtIndex:1] intValue]); CGFloat *color = CGColorGetComponents([[stroke objectAtIndex:2] CGColor]); CGContextSetRGBStrokeColor(contextRef, color[0], color[1], color[2], color[3]); CGContextBeginPath(contextRef); CGPoint points[[stroke count]]; for (NSUInteger i = 3; i < [stroke count]; i++) { points[i-3] = [[stroke objectAtIndex:i] CGPointValue]; } CGContextAddLines(contextRef, points, [stroke count]-3); CGContextStrokePath(contextRef); } } -(void)loadSLider{ } - (IBAction)changeAlphaValue{ strokeAlpha2 =((int)slides.value); } -(void)blueColor{ red = 0/255.0; green = 0/255.0; blue = 255/255.0; } -(void)darkvioletColor{ red = 75/255.0; green = 0/255.0; blue = 130/255.0; } -(void)violetColor{ red = 128/255.0; green = 0/255.0; blue = 128/255.0; } -(void)pinkColor{ red = 255/255.0; green = 0/255.0; blue = 255/255.0; } -(void)darkbrownColor{ red = 0.200; green = 0.0; blue = 0.0; } -(void)redColor{ red = 255/255.0; green = 0/255.0; blue = 0/255.0; } -(void)magentaRedColor{ red = 0.350; green = 0.0; blue = 0.0; } -(void)lightBrownColor{ red = 0.480; green = 0.0; blue = 0.0; } -(void)lightOrangeColor{ red = 0.600; green = 0.200; blue = 0.0; } -(void)OrangeColor{ red = 1.0; green = 0.300; blue = 0.0; } -(void)YellowColor{ red = 0.950; green = 0.450; blue = 0.0; } -(void)greenColor{ red = 0.0; green = 1.0; blue = 0.0; } -(void)lightYellowColor{ red = 1.0; green = 1.0; blue = 0.0; } -(void)darkGreenColor{ red = 0.0; green = 0.500; blue = 0.0; } -(void)TurquioseColor{ red = 0.0; green = 0.700; blue = 0.200; } -(void)PaleTurquioseColor{ red = 0.0; green = 0.700; blue = 0.600; } -(void)skyBlueColor{ red = 0.0; green = 0.400; blue = 0.800; } -(void)whiteColor{ red = 1.0; green = 1.0; blue = 1.0; } -(void)DirtyWhiteColor{ red = 0.800; green = 0.800; blue = 0.800; } -(void)SilverColor{ red = 0.600; green = 0.600; blue = 0.600; } -(void)LightGrayColor{ red = 0.500; green = 0.500; blue = 0.500; } -(void)GrayColor{ red = 0.300; green = 0.300; blue = 0.300; } -(void)LightBlackColor{ red = 0.150; green = 0.150; blue = 0.150; } -(void)BlackColor{ red = 0.0; green = 0.0; blue = 0.0; } - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch; NSEnumerator *counter = [touches objectEnumerator]; while ((touch = (UITouch *)[counter nextObject])) { switch (strokeAlpha2) { case 1: strokeAlpha = .1; break; case 2: strokeAlpha = .2; break; case 3: strokeAlpha = .3; break; case 4: strokeAlpha = .4; break; case 5: strokeAlpha = .5; break; case 6: strokeAlpha = .6; break; case 7: strokeAlpha = .7; break; case 8: strokeAlpha = .8; break; case 9: strokeAlpha = .9; break; case 10: strokeAlpha = 1; break; default: strokeAlpha = 1; break; } self.strokeColor = [UIColor colorWithRed:red green:green blue:blue alpha:strokeAlpha]; NSValue *touchPos = [NSValue valueWithCGPoint:[touch locationInView:self]]; UIColor *color = [UIColor colorWithCGColor:strokeColor.CGColor]; NSNumber *size = [NSNumber numberWithInt:strokeSize]; NSMutableArray *stroke = [NSMutableArray arrayWithObjects: touch, size, color, touchPos, nil]; [strokeArray addObject:stroke]; } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch; NSEnumerator *counter = [touches objectEnumerator]; while ((touch = (UITouch *)[counter nextObject])) { NSMutableArray *stroke; for (stroke in strokeArray) { if ([stroke objectAtIndex:0] == touch) { [stroke addObject:[NSValue valueWithCGPoint:[touch locationInView:self]]]; } [self setNeedsDisplay]; } } } @end

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• ssl certificate for www.domain.com and domain.com

  - by user12145

  I used make-dummmy-cert that comes with apache 2.2 and ssl_mod to make a self-signed certificate, I tried www.domain.com domain.com *.domain.com, none of them would work for both www.domain.com and domain.com. The browser would say The certificate is only valid for domain.com( or www.domain.com or *.domain.com respectively) how do I make a self-signed cert that would work for both cases?

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• Is adding users to the group www-data safe on Debian?

  - by John

  Many PHP applications do self-configuration and self-updating. This requires apache to have write access to the PHP files. While chgrp'ing them all to www-data appears like a good practice to avoid making them world writable, I also wish to allow users to create new files and edit existing one. Is adding users to the group www-data safe on Debian? For example: 775 root www-data /var/www 644 john www-data /var/www/johns_php_application.php 660 john www-data /var/www/johns_php_applications_configuration_file

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• How may I monitor all gestures of the entire system

  - by Jiulong Zhao

  I can make a view to accept touch event and receive detailed gesture event like this: [self setAcceptsTouchEvents:YES]; // NSSet *touches = [event touchesMatchingPhase:NSTouchPhaseBegan inView:self]; I can also receive global event by crate a monitor in this way: NSUInteger eventMasks = NSEventTypeBeginGesture | NSEventTypeEndGesture | NSEventMaskGesture; [NSEvent addGlobalMonitorForEventsMatchingMask:eventMasks handler:^(NSEvent *theevent) {//do something}]; But I can NOT get the detailed event from monitor by -touchesMatchingPhase How may I monitor all gestures of the entire system.

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• Have a process which runs nightly to automatically zip old files?

  - by esac

  I have a file share, and I want a process which enumerates files on that share and automatically creates a 7z self-extracting exe of files over 1 month old. On a different share, I want to create a 7z self-extracting exe of directories that are over 1 month old. Any idea if there is a program which can do this? I already have 7z a -t7z -mx9 -sfx filename.exe filename.txt Portion of it, just need more of the auto-management portion.

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• Can ping between Host and Guest, but can't acces webserver with Virtualbox

  - by Gastoni

  How come I can ping back and forth between host and guest using VirtualBox, but I can't access from the host the web server installed in the guest. I'm using a host-only network. Host Ubuntu 10.10 vboxnet0 - 192.168.56.1 ping to self, works ping to guest, works access to web server in guest, FAILS Guest Fedora 13 eth1 - 192.168.56.101 ping to self, works ping to host, works access to web server in host, works

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• Installing mysql-server with python ssh connection

  - by mrbox

  I'm writing a script in Python, which is connecting to server via ssh, then installing some packages. But there is problem with dialogue box, where i can type in a root password- i don't know how to send data there. Once I tried to do this, my apt(using Debian Lenny) gone crazy. Here is some info: - Debian Lenny - Using PySSH with easier interface, code looks like this: clientSSH = SSHClient( self.ip, 'root', self.rootPassword, None ) clientSSH.login() clientSSH.run_command('apt-get install mysql-server mysql-client php5') clientSSH.run_command('Y') #I Don't know how send root passwd here clientSSH.logout()

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• Which Java binary should I install on my Linux server?

  - by Richards

  How can I find out which Java binary I should install on my Linux server? In Java download page I see: Linux x64 - Self Extracting Installer and Linux x86 - Self Extracting Installer. Running uname -a I get: Linux 2.6.26-2-amd64 #1 SMP Wed Aug 19 22:33:18 UTC 2009 x86_64 GNU/Linux But the result confuses me, it has both numbers 64 and 86 in it so I still don't know which binary should I take. Could you help me out?

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• How (in terms of which parameters) is a "professional-grade" broadband connection different from a "consumer" one?

  - by odemarken

  By "professional" I mean here: The kind you can get at a datacenter for your server The kind you can get at an office that would be good enough for hosting web and mail server with low to medium traffic. (Please ignore other aspects of "the self-hosting problem" and focus only on broadband connection quality). Another way to frame this question would be "what parameters should office broadband have to compare to a datacenter-provided one for the purposes of self-hosting". The knowledge I have gathered so far is in answer format below.

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