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  • Corner Cases, Unexpected and Unusual Matlab

    - by Mikhail
    Over the years, reading others code, I encountered and collected some examples of Matlab syntax which can be at first unusual and counterintuitive. Please, feel free to comment or complement this list. I verified it r2006a. set([], 'Background:Color','red') Matlab is very forgiving sometimes. In this case, setting properties to an array of objects works also with nonsense properties, at least when the array is empty. myArray([1,round(end/2)]) This use of end keyword may seem unclean but is sometimes very handy instead of using length(myArray). any([]) ~= all([]) Surprisigly any([]) returns false and all([]) returns true. And I always thought that all is stronger then any. EDIT: with not empty argument all() returns true for a subset of values for which any() returns true (e.g. truth table). This means that any() false implies all() false. This simple rule is being violated by Matlab with [] as argument. Loren also blogged about it. Select(Range(ExcelComObj)) Procedural style COM object method dispatch. Do not wonder that exist('Select') returns zero! [myString, myCell] Matlab makes in this case an implicit cast of string variable myString to cell type {myString}. It works, also if I would not expect it to do so. [double(1.8), uint8(123)] => 2 123 Another cast example. Everybody would probably expect uint8 value being cast to double but Mathworks have another opinion. a = 5; b = a(); It looks silly but you can call a variable with round brackets. Actually it makes sense because this way you can execute a function given its handle. a = {'aa', 'bb' 'cc', 'dd'}; Surprsisingly this code neither returns a vector nor rises an error but defins matrix, using just code layout. It is probably a relict from ancient times. set(hobj, {'BackgroundColor','ForegroundColor'},{'red','blue'}) This code does what you probably expect it to do. That function set accepts a struct as its second argument is a known fact and makes sense, and this sintax is just a cell2struct away. Equvalence rules are sometimes unexpected at first. For example 'A'==65 returns true (although for C-experts it is self-evident). About which further unexpected/unusual Matlab features are you aware?

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  • Redundant margins when adding ImageView to ScrollView in Android.

    - by Shmuel Meymann
    Hi.. I have been trying to use a ScrollView on a single ImageView with a JPG (~770 x 1024) over an AVD that's 600x800. My main.xml is: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ScrollView android:id="@+id/scroller" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout> Now, I add a single ImageView with setContentView(R.layout.main); ScrollView sv = (ScrollView)findViewById( R.id.scroller ); ImageView iv = new ImageView(this); iv.setImageDrawable( new BitmapDrawable( "/sdcard/770x1024.jpg" ) ); // same happens with ScaleDrawable. iv.setScaleType( ScaleType.CENTER_INSIDE ); sv.addView( sv ); // and it does not go any better if I use Linear Layout between the ScrollView and the ImageView. The result is The image was displayed in a middle of a ScrollView, wrapped with background area on top and bottom as following: ##### ##### image . . . ##### ##### Where ##### stands for background area I tried to set the background of the ImageView red, and it verified that the blank margins were ImageView background. iv.setBackgroundColor( color.Red ); Where I would expect the image to take no more than its size (scaled to the AVD size) and I expect the ScrollView to let me scroll over the remainder (if any). For some reason, I see that the drawable size is 600x1024. Moreover I tried to add a LinearLayout with a dummy text view such as the linear layout is a parent to the ImageView and the TextView, and the ScrollView is a parent to the LinearLayout. LinearLayout dummy = new LinearLayout( this ); dummy.addView(iv); TextView someTextView = new TextView( this ); someTextView.setLayoutParams(new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT )); dummy.addView( someTextView ); sv.addView( dummy ); The result was very peculiar: The entire layout was set into the width of a text-less text view (19). It is important for me to avoid stretching the image. What is the recommended way to implement a display of a page that can be potentially scrolled? Do I have to do it manually with a plain layout and scrolling upon OnMove events? Thanks Shmuel

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  • reCaptcha issue with Spring MVC

    - by skip
    Hi I've been trying to integrate reCaptcha with my application built on Spring framework, but I am getting this error: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'recaptcha_challenge_field' is not present Could someone help me understand that why am I getting this error. I've got both recaptcha_challenge_field and recaptcha_response_field parameters bound to the User domain object. Could anybody help me understand what am I missing? Thanks Here is the code of the controller I am using, all I am trying to do is register a user with reCaptcha functionality but what I am getting is a http status 400 with the error org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'recaptcha_challenge_field' is not present: UserManagementController.java @Controller public class UserManagementController { private static final String RECAPTCHA_HTML = "reCaptchaHtml"; @Autowired private UserService userService; @Autowired private ReCaptcha reCaptcha; @RequestMapping(method=RequestMethod.GET, value="/addNewUser.do") public ModelAndView addNewUser() { User user = new User(); String html = reCaptcha.createRecaptchaHtml(null, null); ModelMap modelMap = new ModelMap(); modelMap.put("user", user); modelMap.put(RECAPTCHA_HTML, html); return new ModelAndView("/addNewUser", modelMap); } @RequestMapping(method=RequestMethod.POST, value="/addNewUser.do") public String addNewUser(@Valid User user, BindingResult result, @RequestParam("recaptcha_challenge_field") String challenge, @RequestParam("recaptcha_response_field") String response, HttpServletRequest request, Model model) { verifyBinding(result); String remoteAddr = request.getRemoteAddr(); ReCaptchaResponse reCaptchaResponse = reCaptcha.checkAnswer(remoteAddr, challenge, response); if (!reCaptchaResponse.isValid()) { result.rejectValue("captcha", "errors.badCaptcha"); } model.addAttribute("user", user); if (result.hasErrors()) { result.reject("form.problems"); return "addNewUser"; } return "redirect:showContent.do"; } @InitBinder public void initBinder(WebDataBinder binder) { binder.setAllowedFields(new String[] { "firstName", "lastName", "email", "username", "password", "recaptcha_challenge_field", "recaptcha_response_field" }); } private void verifyBinding(BindingResult result) { String[] suppressedFields = result.getSuppressedFields(); if (suppressedFields.length > 0) { throw new RuntimeException("You've attempted to bind fields that haven't been allowed in initBinder(): " + StringUtils.join(suppressedFields, ", ")); } } } Here is the addNewUser.jsp element on the form page for the above controller: <tr> <td>Please prove you're a person</td> <td>${reCaptchaHtml}</td> <td><form:errors path="captcha" cssStyle="color:red"></form:errors></td> </tr> Could you help me understand what am I missing here? Thanks for reply.

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  • DependencyProperty binding not happening on initial load

    - by Ari Roth
    I'm trying to do something simple -- make a DependencyProperty and then bind to it. However, the getter doesn't appear to fire when I start up the app. (I'm guessing the solution will make me smack my head and go "Doh!", but still. :) ) Any ideas? Code-behind code: public static readonly DependencyProperty PriorityProperty = DependencyProperty.Register("Priority", typeof (Priority), typeof (PriorityControl), null); public Priority Priority { get { return (Priority)GetValue(PriorityProperty); } set { SetValue(PriorityProperty, value); } } Control XAML: <ListBox Background="Transparent" BorderThickness="0" ItemsSource="{Binding Path=Priorities}" Name="PriorityList" SelectedItem="{Binding Path=Priority, Mode=TwoWay}"> <ListBox.ItemTemplate> <DataTemplate> <Grid Height="16" Width="16"> <Border BorderBrush="Black" BorderThickness="2" CornerRadius="3" Visibility="{Binding RelativeSource= {RelativeSource Mode=FindAncestor, AncestorType=ListBoxItem}, Path=IsSelected, Converter={StaticResource boolToVisibilityConverter}}" /> <Border CornerRadius="3" Height="12" Width="12"> <Border.Background> <SolidColorBrush Color="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ListBoxItem}, Path=Content, Converter={StaticResource priorityToColorConverter}}" /> </Border.Background> </Border> </Grid> </DataTemplate> </ListBox.ItemTemplate> <ListBox.ItemsPanel> <ItemsPanelTemplate> <StackPanel Orientation="Horizontal"/> </ItemsPanelTemplate> </ListBox.ItemsPanel> </ListBox> Binding statement: <UI:PriorityControl Grid.Column="8" Priority="{Binding Path=Priority}" VerticalAlignment="Center"/> Some other notes: Binding is in a UserControl UserControl contains the PriorityControl PriorityControl contains the DependencyProperty I've checked that the data the UserControl is getting the appropriate data -- every other binding works. If I change the selection on the PriorityControl via the mouse, everything fires as appropriate. It's just that initial setting of the value that isn't working. Priority is an enum.

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  • CSS3 Hover transition strange behavior

    - by Aleksandar Ivanov
    So I was playing around with transition/hover effects so that's the code. <pre> <code> /* HTML */ section> a href="#" title="button">CLICK!</a> // deleted the lt sign for visibility reasons! a href="#" title="button">CLICK!</a> a href="#" title="button">CLICK!</a> a href="#" title="button">CLICK!</a> /section> /********/ /* CSS */ section{ width: 700px; height: 500px; margin: 250px auto; position: relative; background: #08c; } section a{ border-radius: 51px; background: #e60; line-height: 100px; text-align: center; color: #04e; font-size: 24px; font-weight: bold; font-family: tahoma; text-decoration: none; display: block; width: 100px; height: 100px; } section a:nth-child(1){ position: absolute; top: -100px; left: -100px; -webkit-transition: left 2s ease; } section a:nth-child(2){ position: absolute; top: -100px; right: -100px; -webkit-transition: top 2s ease; } section a:nth-child(3){ position: absolute; bottom: -100px; right: -100px; -webkit-transition: right 2s ease; } section a:nth-child(4){ position: absolute; bottom: -100px; left: -100px; -webkit-transition: bottom 2s ease; } section a:nth-child(1):hover,section a:nth-child(1):focus{ left: 800px; } section a:nth-child(2):hover{ top: 600px; } section a:nth-child(3):hover{ right: 800px; } section a:nth-child(4):hover{ bottom: 600px; } /*******/ </code> </pre> BUT, I stumbled upon a strange thing. When I hover over a link its starts getting to its right position applied by the hover, but at some point (always different) the effect stops and it gets back to its original position! Have anyone seen this and know what is the problem ?

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  • Calculating negative fractions in Objective C

    - by Mark Reid
    I've been coding my way through Steve Kochan's Programming in Objective-C 2.0 book. I'm up to an exercise in chapter 7, ex 4, in case anyone has the book. The question posed by the exercise it will the Fraction class written work with negative fractions such as -1/2 + -2/3? Here's the implementation code in question - @implementation Fraction @synthesize numerator, denominator; -(void) print { NSLog(@"%i/%i", numerator, denominator); } -(void) setTo: (int) n over: (int) d { numerator = n; denominator = d; } -(double) convertToNum { if (denominator != 0) return (double) numerator / denominator; else return 1.0; } -(Fraction *) add: (Fraction *) f { // To add two fractions: // a/b + c/d = ((a * d) + (b * c)) / (b * d) // result will store the result of the addition Fraction *result = [[Fraction alloc] init]; int resultNum, resultDenom; resultNum = (numerator * f.denominator) + (denominator * f.numerator); resultDenom = denominator * f.denominator; [result setTo: resultNum over: resultDenom]; [result reduce]; return result; } -(Fraction *) subtract: (Fraction *) f { // To subtract two fractions: // a/b - c/d = ((a * d) - (b * c)) / (b * d) // result will store the result of the addition Fraction *result = [[Fraction alloc] init]; int resultNum, resultDenom; resultNum = numerator * f.denominator - denominator * f.numerator; resultDenom = denominator * f.denominator; [result setTo: resultNum over: resultDenom]; [result reduce]; return result; } -(Fraction *) multiply: (Fraction *) f { // To multiply two fractions // a/b * c/d = (a*c) / (b*d) // result will store the result of the addition Fraction *result = [[Fraction alloc] init]; int resultNum, resultDenom; resultNum = numerator * f.numerator; resultDenom = denominator * f.denominator; [result setTo: resultNum over: resultDenom]; [result reduce]; return result; } -(Fraction *) divide: (Fraction *) f { // To divide two fractions // a/b / c/d = (a*d) / (b*c) // result will store the result of the addition Fraction *result = [[Fraction alloc] init]; int resultNum, resultDenom; resultNum = numerator * f.denominator; resultDenom = denominator * f.numerator; [result setTo: resultNum over: resultDenom]; [result reduce]; return result; } -(void) reduce { int u = numerator; int v = denominator; int temp; while (v != 0) { temp = u % v; u = v; v = temp; } numerator /= u; denominator /= u; } @end My question to you is will it work with negative fractions and can you explain how you know? Part of the issue is I don't know how to calculate negative fractions myself so I'm not too sure how to know. Many thanks.

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  • how to insert data if it contain apostrop ?

    - by angel ansari
    Actally my task is load csv file into sql server using c# so i have split it by comma my problem is that some field's data contain apostrop and i m firing insert query to load data into sql so its give error my coding like that using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using System.Data.SqlClient; namespace tool { public partial class Form1 : Form { StreamReader reader; SqlConnection con; SqlCommand cmd; int count = 0; //int id=0; FileStream fs; string file = null; string file_path = null; SqlCommand sql_del = null; public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { OpenFileDialog file1 = new OpenFileDialog(); file1.ShowDialog(); textBox1.Text = file1.FileName.ToString(); file = Path.GetFileName(textBox1.Text); file_path = textBox1.Text; fs = new FileStream(file_path, FileMode.Open, FileAccess.Read); } private void button2_Click(object sender, EventArgs e) { if (file != null ) { sql_del = new SqlCommand("Delete From credit_debit1", con); sql_del.ExecuteNonQuery(); reader = new StreamReader(file_path); string line_content = null; string[] items = new string[] { }; while ((line_content = reader.ReadLine()) != null) { if (count >=4680) { items = line_content.Split(','); string region = items[0].Trim('"'); string station = items[1].Trim('"'); string ponumber = items[2].Trim('"'); string invoicenumber = items[3].Trim('"'); string invoicetype = items[4].Trim('"'); string filern = items[5].Trim('"'); string client = items[6].Trim('"'); string origin = items[7].Trim('"'); string destination = items[8].Trim('"'); string agingdate = items[9].Trim('"'); string activitydate = items[10].Trim('"'); if ((invoicenumber == "-") || (string.IsNullOrEmpty(invoicenumber))) { invoicenumber = "null"; } else { invoicenumber = "'" + invoicenumber + "'"; } if ((destination == "-") || (string.IsNullOrEmpty(destination))) { destination = "null"; } else { destination = "'" + destination + "'"; } string vendornumber = items[11].Trim('"'); string vendorname = items[12].Trim('"'); string vendorsite = items[13].Trim('"'); string vendorref = items[14].Trim('"'); string subaccount = items[15].Trim('"'); string osdaye = items[16].Trim('"'); string osaa = items[17].Trim('"'); string osda = items[18].Trim('"'); string our = items[19].Trim('"'); string squery = "INSERT INTO credit_debit1" + "([id],[Region],[Station],[PONumber],[InvoiceNumber],[InvoiceType],[FileRefNumber],[Client],[Origin],[Destination], " + "[AgingDate],[ActivityDate],[VendorNumber],[VendorName],[VendorSite],[VendorRef],[SubAccount],[OSDay],[OSAdvAmt],[OSDisbAmt], " + "[OverUnderRecovery] ) " + "VALUES " + "('" + count + "','" + region + "','" + station + "','" + ponumber + "'," + invoicenumber + ",'" + invoicetype + "','" + filern + "','" + client + "','" + origin + "'," + destination + "," + "'" + (string)agingdate.ToString() + "','" + (string)activitydate.ToString() + "','" + vendornumber + "',' " + vendorname + "',' " + vendorsite + "',' " + vendorref + "'," + "'" + subaccount + "','" + osdaye + "','" + osaa + "','" + osda + "','" + our + "') "; cmd = new SqlCommand(squery, con); cmd.CommandTimeout = 1500; cmd.ExecuteNonQuery(); } label2.Text = count.ToString(); Application.DoEvents(); count++; } MessageBox.Show("Process completed"); } else { MessageBox.Show("path select"); } } private void button3_Click(object sender, EventArgs e) { this.Close(); } private void Form1_Load(object sender, EventArgs e) { con = new SqlConnection("Data Source=192.168.50.200;User ID=EGL_TEST;Password=TEST;Initial Catalog=EGL_TEST;"); con.Open(); } } } vendername field contain data (MCCOLLISTER'S TRANSPORTATION) so how to pass this data

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  • Another IKImageView Question: copying a region

    - by Brian Postow
    I'm trying to use the select and copy feature of the IKImageView. If all you want to do is have an app with an image, select a portion and copy it to the clipboard, it's easy. You set the copy menu pick to the first responder's copy:(id) method and magically everything works. However, if you want something more complicated, like you want to copy as part of some other operation, I can't seem to find the method to do this. IKImageView doesn't seem to have a copy method, it doesn't seem to have a method that will even tell you the selected rectangle! I have gone through Hillegass' book, so I understand how the clipboard works, just not how to get the portion of the image out of the view... Now, I'm starting to think that I made a mistake in basing my project on IKImageView, but it's what Preview is built on (or so I've read), so I figured it had to be stable... and anyway, now it's too late, I'm too deep in this to start over... So, other than not using IKImageView, any suggestions on how to copy the select region to the clipboard manually? EDIT actually, I have found the copy(id) method, but when I call it, I get <Error>: CGBitmapContextCreate: unsupported parameter combination: 8 integer bits/component; 16 bits/pixel; 1-component color space; kCGImageAlphaPremultipliedLast; 2624 bytes/row. Which obviously doesn't happen when I do a normal copy through the first-responder... I understand the error message, but I'm not sure where it's getting those parameters from... Is there any way to trace through this and see how this is happening? A debugger won't help for obvious reasons, as well as the fact that I'm doing this in Mozilla, so a debugger isn't an option anyway... EDIT 2 It occurs to me that the copy:(id) method I found may be copying the VIEW rather than copying a chunk of the image to the clipboard, which is what I need. The reason I thought it was the clipboard copy is that in another project, where I'm copying from an IKImageView to the clipboard straight from the edit menu, it just sends a copy:(id) to the firstResponder, but I'm not actually sure what the firstresponder does with it...

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  • Windowsless property is not working in Firefox ONLY

    - by lmenaria
    Hello, I have created a simple silverlight application to display some text at realtime from xml. The text display using HTML DIV tag. I have added plugin property windowless=true, enablehtmlaccess=true,background=transparent. On Silverlight I have added a Button "Continue" at Top & Bottom, which shows some message on that click. Silverlight Plugin resize based in XML contents. My code : MainPage.xaml: MainPage.xaml.cs: Creating HTML DIV on Application Start using : HtmlDocument _document = HtmlPage.Document; HtmlElement iDIV = _document.CreateElement("DIV"); iDIV.SetAttribute("id", "divHTMLViewer"); iDIV.SetStyleAttribute("position", "absolute"); iDIV.SetStyleAttribute("z-index", "1"); iDIV.SetStyleAttribute("display", "INLINE"); iDIV.SetStyleAttribute("top", "100px"); iDIV.SetStyleAttribute("height", "0px"); iDIV.SetStyleAttribute("width", "96%"); iDIV.SetStyleAttribute("left", "15px"); iDIV.SetStyleAttribute("text-align", "justify"); HtmlElement body = _document.GetElementsByTagName("BODY")[0] as HtmlElement; body.RemoveChild(iDIV); body.AppendChild(iDIV); Set the XML text : HtmlElement divHTMLViewer = HtmlPage.Document.GetElementById("divHTMLViewer"); sText = sText.Replace("<", "<").Replace(">", ""); divHTMLViewer.SetStyleAttribute("display", "none"); divHTMLViewer.SetStyleAttribute("width", "96%"); divHTMLViewer.SetStyleAttribute("top", "100px"); divHTMLViewer.SetStyleAttribute("left", "15px"); divHTMLViewer.RemoveStyleAttribute("color"); divHTMLViewer.RemoveStyleAttribute("fontSize"); divHTMLViewer.SetProperty("innerHTML", sText); divHTMLViewer.SetStyleAttribute("display", "INLINE"); setSilverlightControlHeight(UILAYOUT.INSTRUCTIONS); Silverlight Plugin size increase code : isilverlightControlHost.SetStyleAttribute("height", HtmlPage.Window.Eval("document.documentElement.scrollHeight").ToString() + "px"); isilverlightControlHost.SetStyleAttribute("position", "absolute"); All these code is working fine in Internet Explorer, Crome & Safari but "Continue" not visible in FIREFOX ONLY. So is there any issue with this code ? Code Sample :http://lm-bucket-for-forum-post.s3.amazonaws.com/HtMLViewerSilverLight.zip working sample : Just replace ".zip" with "TestPage.html" in above URL. Please let me know how can I solve it ? Thanks in advance, Laxmilal Menaria

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  • JFrame not working correctly

    - by Nick Gibson
    This is making me very angry, I have worked on this for 2 days, have 2 books open and have looked through them, and STILL can't get this program to run the way I want it run. I'm getting to the point where if this doesn't help, I quit. I want a SIMPLE Frame application. It has a JComboBox centered at the top. Next to it is a text field big enough to show numeric digits such as "$49.99" Below it is a spot for a Text area showing terms of service Below that is the checkbox agreeing to the terms of service Below that is 2 buttons "Accept" and "Decline" I Have worked on this for 2 days, here is the coding: public class Bar extends JFrame implements ActionListener { public Bar(final JFrame frame) { String[] tests = { "A+ Certification", "Network+ Certification", "Security+ Certification", "CIT Full Test Package" }; JButton button = new JButton("Click Meh"); add(new JLabel("Welcome to the CIT Test Program ")); add(new JLabel("Please select which Test Package from the list below.")); frame.setVisible(true); frame.setSize(250,250); JPanel pane1 = new JPanel(new FlowLayout()); JPanel pane2 = new JPanel(new FlowLayout()); JMenuBar menuBar = new JMenuBar(); JMenu fileMenu = new JMenu("File"); JMenu editMenu = new JMenu("Edit"); JMenu helpMenu = new JMenu("Help"); menuBar.add(fileMenu); menuBar.add(editMenu); menuBar.add(helpMenu); JMenuItem newMenu = new JMenuItem("New (Ctrl+N)"); JMenuItem openMenu = new JMenuItem("Open (Ctrl+O)"); JMenuItem saveMenu = new JMenuItem("Save (Ctrl+S)"); saveMenu.addActionListener(this); JMenuItem exitMenu = new JMenuItem("Exit (Ctrl+W)"); JMenuItem cutMenu = new JMenuItem("Cut (Ctrl+X)"); JMenuItem copyMenu = new JMenuItem("Copy (Ctrl+C)"); JMenuItem pasteMenu = new JMenuItem("Paste (Ctrl+V)"); JMenuItem infoMenu = new JMenuItem("Help (Ctrl+H)"); fileMenu.add(newMenu); fileMenu.add(openMenu); fileMenu.add(saveMenu); fileMenu.add(exitMenu); editMenu.add(cutMenu); editMenu.add(copyMenu); editMenu.add(pasteMenu); helpMenu.add(infoMenu); frame.setJMenuBar(menuBar); JComboBox packageChoice = new JComboBox(tests); frame.add(packageChoice); } public void actionPerformed(ActionEvent e) { Object source = e.getSource(); { } } EDIT: Forgot to add the second program public class JFrameWithPanel { public static void main(String[] args) { JPanel panel = new Bar(new JFrame("CIT Test Program")); } } How do I get this to have everything where I want it and show up? I'm very confused because of this and now barely even get how Frames work.

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  • Validate xsl fo in xslt styleesheet

    - by Biegal
    Hi, i have a little problem with validating xml, xslt in details. I have a xslt stylesheet that, transforms xml data source to xsl:fo document. Something like this: <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <xsl:template match="/"> <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns="http://www.w3.org/1999/xhtml"> <fo:layout-master-set> <fo:simple-page-master margin-top="25mm" margin-bottom="25mm" margin-left="25mm" margin-right="25mm" page-width="210mm" page-height="297mm" master-name="simplePageLayout"> <fo:region-body region-name="xsl-region-body" column-gap="0.25in" /> <fo:region-before region-name="xsl-region-before" display-align="after" extent="0.1mm" padding-top="0pt" padding-left="0.4in" padding-right="0.4in" padding-bottom="0pt" /> <fo:region-after region-name="xsl-region-after" display-align="before" extent="0.4in" padding-top="4pt" padding-left="0.4in" padding-right="0.4in" padding-bottom="0pt" /> </fo:simple-page-master> <fo:page-sequence-master master-name="default-sequence"> <fo:repeatable-page-master-reference master-reference="simplePageLayout" /> </fo:page-sequence-master> </fo:layout-master-set> <fo:page-sequence master-reference="default-sequence"> <fo:flow flow-name="xsl-region-body"> <fo:block font-family="Segoe UI" color="#000000" font-size="9pt" /> </fo:flow> </fo:page-sequence> </fo:root> </xsl:template> What I want to do, is to validate written xsl:fo elements, ignoring xsl tags. Is it posible? For now I use dtd validation (I have xsd schema too) for validating Fo, but it give me an error on each xsl tag. Summary. Is it posiible to validate only fo elements against the schema, ignoring xsl tags, and how should I do it? Maybe a code snnippet in C#, or a hint how to modify documents? Thanks in advance!

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  • IE is ignoring Z-Index on positioned elements

    - by Mike
    IE yet again is proving to be the bane of my existence. The top of a site I'm working on has a horizontal menu, an item of which triggers a pure-CSS menu that is positioned absolute within the parent menu DIV (positioned relative). This places the menu perfectly in both IE and the W3C compliant browsers. The problem arises when I have more positioned elements further down on the page. These are also positioned relative, because there is data inside them that needs to be positioned absolute... again, this displays properly in all browsers I've tested it on. The problem is, that then the top menu is opened, part is obscured by the positioned elements further down the page - in effect, it's positioned BELOW these elements even though there are z-index properties defined on all. (in both the CSS file and inline). The only way to get IE to display this properly is to place the actual HTML for the menu at the bottom of the page, below (in DOM terms) the positioned elements elsewhere on the page. I would only do this as an absolute last resort. All Elements are the same type (div). Here is the relevant HTML: <div id='menu'> <div id='cat_menu' style='display:none;z-index:10000;'> <table cellspacing='0' cellpadding='0' class='brmenu' width='100%'> [data] </table> </div> <div class='product_new' style='z-index:20;'>[data]</div> <div class='product_listing' style='background-color:#FFFFFF;'>[data]</div> And the relevant CSS: div#menu { height: 26px; padding: 0; position: relative; } div#cat_menu { position: absolute; top: 25px; left: 115px; width: 300px; z-index: 1000; } div.product_new { background-image: url("/images/sp_images.png"); background-position: 0 -108px; background-repeat: no-repeat; padding 0px; height: 40px; font-size: 9pt; margin-top: 5px; position: relative; z-index: 20; }

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  • Paging, sorting and filtering in a stored procedure (SQL Server)

    - by Fruitbat
    I was looking at different ways of writing a stored procedure to return a "page" of data. This was for use with the asp ObjectDataSource, but it could be considered a more general problem. The requirement is to return a subset of the data based on the usual paging paremeters, startPageIndex and maximumRows, but also a sortBy parameter to allow the data to be sorted. Also there are some parameters passed in to filter the data on various conditions. One common way to do this seems to be something like this: [Method 1] ;WITH stuff AS ( SELECT CASE WHEN @SortBy = 'Name' THEN ROW_NUMBER() OVER (ORDER BY Name) WHEN @SortBy = 'Name DESC' THEN ROW_NUMBER() OVER (ORDER BY Name DESC) WHEN @SortBy = ... ELSE ROW_NUMBER() OVER (ORDER BY whatever) END AS Row, ., ., ., FROM Table1 INNER JOIN Table2 ... LEFT JOIN Table3 ... WHERE ... (lots of things to check) ) SELECT * FROM stuff WHERE (Row > @startRowIndex) AND (Row <= @startRowIndex + @maximumRows OR @maximumRows <= 0) ORDER BY Row One problem with this is that it doesn't give the total count and generally we need another stored procedure for that. This second stored procedure has to replicate the parameter list and the complex WHERE clause. Not nice. One solution is to append an extra column to the final select list, (SELECT COUNT(*) FROM stuff) AS TotalRows. This gives us the total but repeats it for every row in the result set, which is not ideal. [Method 2] An interesting alternative is given here (http://www.4guysfromrolla.com/articles/032206-1.aspx) using dynamic SQL. He reckons that the performance is better because the CASE statement in the first solution drags things down. Fair enough, and this solution makes it easy to get the totalRows and slap it into an output parameter. But I hate coding dynamic SQL. All that 'bit of SQL ' + STR(@parm1) +' bit more SQL' gubbins. [Method 3] The only way I can find to get what I want, without repeating code which would have to be synchronised, and keeping things reasonably readable is to go back to the "old way" of using a table variable: DECLARE @stuff TABLE (Row INT, ...) INSERT INTO @stuff SELECT CASE WHEN @SortBy = 'Name' THEN ROW_NUMBER() OVER (ORDER BY Name) WHEN @SortBy = 'Name DESC' THEN ROW_NUMBER() OVER (ORDER BY Name DESC) WHEN @SortBy = ... ELSE ROW_NUMBER() OVER (ORDER BY whatever) END AS Row, ., ., ., FROM Table1 INNER JOIN Table2 ... LEFT JOIN Table3 ... WHERE ... (lots of things to check) SELECT * FROM stuff WHERE (Row > @startRowIndex) AND (Row <= @startRowIndex + @maximumRows OR @maximumRows <= 0) ORDER BY Row (Or a similar method using an IDENTITY column on the table variable). Here I can just add a SELECT COUNT on the table variable to get the totalRows and put it into an output parameter. I did some tests and with a fairly simple version of the query (no sortBy and no filter), method 1 seems to come up on top (almost twice as quick as the other 2). Then I decided to test probably I needed the complexity and I needed the SQL to be in stored procedures. With this I get method 1 taking nearly twice as long as the other 2 methods. Which seems strange. Is there any good reason why I shouldn't spurn CTEs and stick with method 3? UPDATE - 15 March 2012 I tried adapting Method 1 to dump the page from the CTE into a temporary table so that I could extract the TotalRows and then select just the relevant columns for the resultset. This seemed to add significantly to the time (more than I expected). I should add that I'm running this on a laptop with SQL Server Express 2008 (all that I have available) but still the comparison should be valid. I looked again at the dynamic SQL method. It turns out I wasn't really doing it properly (just concatenating strings together). I set it up as in the documentation for sp_executesql (with a parameter description string and parameter list) and it's much more readable. Also this method runs fastest in my environment. Why that should be still baffles me, but I guess the answer is hinted at in Hogan's comment.

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  • OpenGL Polygon Stipple Not Working On Different Machine

    - by FranticPedantic
    I have a situation where I am trying to draw a semi-transparent rectangle over a background that is not using openGL and so I can not use blending. I decided to use polygon stippling for a 'screen door transparency' effect as recommended by some. It works fine on my machine and some others, but on some machines with slightly old Intel graphics cards it's failing to render the rectangle at all. If I turn off polygon stipple, it renders fine (but without the stipple). I have compared many of the state variables that I thought might affect it (see code) between machines and they are all the same, and I get no errors. static const GLubyte stipplePatternChkr[128]; //definition omitted for clarity //but works on my machine // stipple the box glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); glColor4ubv(Color(COLORREF_PADGRAY)); glEnable(GL_POLYGON_STIPPLE); glPolygonStipple(stipplePatternChkr); CRect rcStipple(dim); rcStipple.DeflateRect(padding - 1, padding - 1); glBegin(GL_QUADS); glVertex2i(rcStipple.left, rcStipple.bottom); glVertex2i(rcStipple.right, rcStipple.bottom); glVertex2i(rcStipple.right, rcStipple.top); glVertex2i(rcStipple.left, rcStipple.top); glEnd(); glDisable(GL_POLYGON_STIPPLE); int err = glGetError(); if (err != GL_NO_ERROR) { TRACE("glError(%s: %s)\n", s, gluErrorString(err)); } float x; glGetFloatv(GL_UNPACK_ALIGNMENT, &x); TRACE("unpack alignment %f\n", x); glGetFloatv(GL_UNPACK_IMAGE_HEIGHT, &x); TRACE("unpack height %f\n", x); glGetFloatv(GL_UNPACK_LSB_FIRST, &x); TRACE("unpack lsb %f\n", x); glGetFloatv(GL_UNPACK_ROW_LENGTH, &x); TRACE("unpack length %f\n", x); glGetFloatv(GL_UNPACK_SKIP_PIXELS, &x); TRACE("upnack skip %f\n", x); glGetFloatv(GL_UNPACK_SWAP_BYTES, &x); TRACE("upnack swap %f\n", x);

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  • validating cascading dropdownlist

    - by shruti
    i am working on MVC.Net. in that i have used cascading dropdownlist. I want to do validations for blank field. the view page coding is: Select Category: <%= Html.DropDownList("Makes", ViewData["Makes"] as SelectList,"Select Category")% Select Subcategory: <%= Html.CascadingDropDownList("Models", "Makes")% the code on controller: public ActionResult AddSubCategoryPage() { var makeList = new SelectList(entityObj.Category.ToList(), "Category_id", "Category_name"); ViewData["Makes"] = makeList; // Create Models view data var modelList = new CascadingSelectList(entityObj.Subcategory1.ToList(), "Category_id", "Subcategory_id", "Subcategory_name"); ViewData["Models"] = modelList; return View("AddSubCategoryPage"); } and for that i have made one class: public static class JavaScriptExtensions { public static string CascadingDropDownList(this HtmlHelper helper, string name, string associatedDropDownList) { var sb = new StringBuilder(); // render select tag sb.AppendFormat("<select name='{0}' id='{0}'></select>", name); sb.AppendLine(); // render data array sb.AppendLine("<script type='text/javascript'>"); var data = (CascadingSelectList)helper.ViewDataContainer.ViewData[name]; var listItems = data.GetListItems(); var colArray = new List<string>(); foreach (var item in listItems) colArray.Add(String.Format("{{key:'{0}',value:'{1}',text:'{2}'}}", item.Key, item.Value, item.Text)); var jsArray = String.Join(",", colArray.ToArray()); sb.AppendFormat("$get('{0}').allOptions=[{1}];", name, jsArray); sb.AppendLine(); sb.AppendFormat("$addHandler($get('{0}'), 'change', Function.createCallback(bindDropDownList, $get('{1}')));", associatedDropDownList, name); sb.AppendLine(); sb.AppendLine("</script>"); return sb.ToString(); } } public class CascadingSelectList { private IEnumerable _items; private string _dataKeyField; private string _dataValueField; private string _dataTextField; public CascadingSelectList(IEnumerable items, string dataKeyField, string dataValueField, string dataTextField) { _items = items; _dataKeyField = dataKeyField; _dataValueField = dataValueField; _dataTextField = dataTextField; } public List<CascadingListItem> GetListItems() { var listItems = new List<CascadingListItem>(); foreach (var item in _items) { var key = DataBinder.GetPropertyValue(item, _dataKeyField).ToString(); var value = DataBinder.GetPropertyValue(item, _dataValueField).ToString(); var text = DataBinder.GetPropertyValue(item, _dataTextField).ToString(); listItems.Add(new CascadingListItem(key, value, text)); } return listItems; } } public class CascadingListItem { public CascadingListItem(string key, string value, string text) { this.Key = key; this.Value = value; this.Text = text; } public string Key { get; set; } public string Value { get; set; } public string Text { get; set; } } but when i run the aaplication it gives me following error: Server Error in '/' Application. The parameters dictionary contains a null entry for parameter 'Models' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult AddSubCategoryPage(Int32, System.String, System.String)' in 'CMS.Controllers.HomeController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter. Parameter name: parameters . plz help me.

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  • Help me please, javascript place problem or another thing??

    - by ilkdrl
    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Urunler.aspx.cs" Inherits="Urunler" %> <!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 runat="server"> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <meta http-equiv="content-language" content="en" /> <link href="rss/example_ticker.css" rel="stylesheet" type="text/css" /> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script> <script src="rss/jquery.zrssfeed.min.js" type="text/javascript"></script> <script src="rss/jquery.vticker.js" type="text/javascript"></script> <title></title> <script type="text/javascript" src="lightbox/js/prototype.js"></script> <script type="text/javascript" src="lightbox/js/scriptaculous.js?load=effects,builder"></script> <script type="text/javascript" src="lightbox/js/lightbox.js"></script> <link rel="stylesheet" href="lightbox/css/lightbox.css" type="text/css" media="screen" /> <style type="text/css"> ........... ........... ........... <td style="background-color: #808080"> <script type="text/javascript"> $(document).ready(function () { $('#ticker1').rssfeed('http://www.xxxxxxx.com/map.asp').ajaxStop(function () { $('#ticker1 div.rssBody').vTicker({ showItems: 3 }); }); }); </script> <div id="ticker1" > </div> Hi, i have two scripts.lightbox and rss. lightbox script works very well in mywebform1 but rss feed dont work.I didnot solve that?Help me please. PS: on the other hand, my another webpage(mywebform2) in same website has only rss feed and works very well.

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  • Apache: How can i see my localhost on 192.168.1.101 from 192.168.1.102?

    - by takpar
    Hi, I'm running Apache on Ubuntu. My IP address is 192.168.1.101 While http://localhost and http://192.168.1.101 work fine in my PC, I cannot access it from within my laptop using http://192.168.1.102 It's strange. I can ping 192.168.1.101 but I got "The connection has timed out." in browser. I'm using default apache config. so this is what my sites-available/default looks like: NameVirtualHost *:80 <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /home/www/public_html <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /home/www/public_html> Options Indexes FollowSymLinks MultiViews #AllowOverride None AllowOverride all Order allow,deny allow from all </Directory> /etc/apache2/posrts.conf NameVirtualHost *:80 Listen 80 <IfModule mod_ssl.c> # If you add NameVirtualHost *:443 here, you will also have to change # the VirtualHost statement in /etc/apache2/sites-available/default-ssl # to <VirtualHost *:443> # Server Name Indication for SSL named virtual hosts is currently not # supported by MSIE on Windows XP. Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> my laptop runs Ubuntu as well. so I don't think this is a firewall issue. commands executed in Laptop (192.168.1.102): adp@adp-laptop:~$ ping 192.168.1.101 PING 192.168.1.101 (192.168.1.101) 56(84) bytes of data. 64 bytes from 192.168.1.101: icmp_seq=1 ttl=64 time=32.1 ms 64 bytes from 192.168.1.101: icmp_seq=2 ttl=64 time=54.8 ms 64 bytes from 192.168.1.101: icmp_seq=3 ttl=64 time=77.0 ms 64 bytes from 192.168.1.101: icmp_seq=4 ttl=64 time=100 ms ^C --- 192.168.1.101 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3003ms rtt min/avg/max/mdev = 32.193/66.193/100.717/25.463 ms adp@adp-laptop:~$ telnet 192.168.1.101 80 Trying 192.168.1.101... telnet: Unable to connect to remote host: Connection timed out commands executed in PC (192.168.1.101): adp@adp-desktop:~$ ps afx | grep http 12672 pts/4 S+ 0:00 | \_ grep --color=auto http adp@adp-desktop:~$ ping 192.168.1.102 PING 192.168.1.102 (192.168.1.102) 56(84) bytes of data. 64 bytes from 192.168.1.102: icmp_seq=1 ttl=64 time=32.1 ms 64 bytes from 192.168.1.102: icmp_seq=2 ttl=64 time=54.8 ms 64 bytes from 192.168.1.102: icmp_seq=3 ttl=64 time=77.0 ms 64 bytes from 192.168.1.102: icmp_seq=4 ttl=64 time=100 ms ^C --- 192.168.1.102 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3003ms rtt min/avg/max/mdev = 32.193/66.193/100.717/25.463 ms adp@adp-desktop:~$ telnet 192.168.1.102 80 Trying 192.168.1.102... telnet: Unable to connect to remote host: Connection refused adp@adp-desktop:~$ telnet 192.168.1.102 Trying 192.168.1.102... telnet: Unable to connect to remote host: Connection refused What should i do?

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  • jQuery: How to find and change multiply th classes between n & n

    - by Ravex
    Hi everyone. I have some table structure: <tr class="row-2"><tr> <tr class="row-3">..<tr> <tr class="row-4">..<tr> <tr class="row-5">..<tr> <tr class="row-6">..<tr> <tr class="row-7"><tr> <tr class="row-8">..<tr> <tr class="row-9">..<tr> <tr class="row-10">..<tr> <tr class="row-11">..<tr> ...etc for this example TR with classes "row-2" and "row-7" is parrent product link wich expand child rows. <script> $(function() { $('tr.parent') .css("cursor","pointer") .css("color","red") .attr("title","Click to expand/collapse") .click(function(){ $(this).siblings('.child-'+this.id).toggle(); }); $('tr[@class^=child-]').hide().children('td'); }); </script> Rows -3...-6 is child of row-2 and Rows -8...-11 is child of row-7 How i can find row-2, row-7, etc then add second class "parrent" and ID similar class (id="row-2", id="row-7", etc)? Also i need add in each TR between row-2 and row-7 class equal previous parrent row. In bottom line i need something like this: <tr class="row-2 parrent" id="row-2"><tr> <tr class="row-3 child-row2">..<tr> <tr class="row-4 child-row2">..<tr> <tr class="row-5 child-row2">..<tr> <tr class="row-6 child-row2">..<tr> <tr class="row-7 parrent" id="row-7"><tr> <tr class="row-8 child-row7">..<tr> <tr class="row-9 child-row7">..<tr> <tr class="row-10 child-row7">..<tr> <tr class="row-11 child-row7">..<tr> ..etc Thanks for any Help.

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  • RegEx to ignore / skip everything in html tags

    - by Scott Sumpter
    Looking for a way to combine two Regular Expressions. One to catch the urls and the other to ensure is skips text within html tags. See sample text below functions. Need to pass a block of news text and format text by wrapping urls and email addresses in html tags so users don't have to. The below code works great until there are already html tags within the text. In that case it doubles the html tags. There are plenty of examples to strip html, but I want to just ignore it since the url is already linkified. Also - if there is an easier was to accomplish this, with or without Regex, please let me know. none of my attempts to combine Regexs have worked. coding in ASP.NET VB but will take any workable example/direction. Thanks! ===== Functions ============= Public Shared Function InsertHyperlinks(ByVal inText As String) As String Dim strBuf As String Dim objMatches As Object Dim iStart, iEnd As Integer strBuf = "" iStart = 1 iEnd = 1 Dim strRegUrlEmail As String = "\b(www|http|\S+@)\S+\b" 'RegEx to find urls and email addresses Dim objRegExp As New Regex(strRegUrlEmail, RegexOptions.IgnoreCase) 'Match URLs and emails Dim MatchList As MatchCollection = objRegExp.Matches(inText) If MatchList.Count <> 0 Then objMatches = objRegExp.Matches(inText) For Each Match In MatchList iEnd = Match.Index strBuf = strBuf & Mid(inText, iStart, iEnd - iStart + 1) If InStr(1, Match.Value, "@") Then strBuf = strBuf & HrefGet(Match.Value, "EMAIL", "_BLANK") Else strBuf = strBuf & HrefGet(Match.Value, "WEB", "_BLANK") End If iStart = iEnd + Match.Length + 1 Next strBuf = strBuf & Mid(inText, iStart) InsertHyperlinks = strBuf Else 'No hyperlinks to replace InsertHyperlinks = inText End If End Function Shared Function HrefGet(ByVal url As String, ByVal urlType As String, ByVal Target As String) As String Dim strBuf As String strBuf = "<a href=""" If UCase(urlType) = "WEB" Then If LCase(Left(url, 3)) = "www" Then strBuf = "<a href=""http://" & url & """ Target=""" & _ Target & """>" & url & "</a>" Else strBuf = "<a href=""" & url & """ Target=""" & _ Target & """>" & url & "</a>" End If ElseIf UCase(urlType) = "EMAIL" Then strBuf = "<a href=""mailto:" & url & """ Target=""" & _ Target & """>" & url & "</a>" End If HrefGet = strBuf End Function ===== Sample Text ============= This would be the inText parameter. Midway through the ride, we see a Skip this too. But sometimes we go here [insert normal www dot link dot com]. If you'd like to join us contact Bill Smith at [email protected]. Thanks! sorry stack overflow won't allow multiple hyperlinks to be added. ===== End Sample Text =============

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  • Scrolling a canvas as a shape you're moving approaches its edges

    - by Steven Sproat
    Hi, I develop a Python-based drawing program, Whyteboard. I have tools that the user can create new shapes on the canvas, such as text/images/rectangles/circles/polygons. I also have a Select tool that allows the users to modify these shapes - for example, moving a shape's position, resizing, or editing polygon's points' positions. I'm adding in a new feature where moving or resizing a point near the canvas edge will automatically scroll the canvas. I think it's a good idea in terms of program usability, and annoys me when other program's don't have this feature. I've made some good progress on coding this; below is some Python code to demonstrate what I'm doing. These functions demonstrate how some shapes calculate their "edges": def find_edges(self): """A line.""" self.edges = {EDGE_TOP: min(self.y, self.y2), EDGE_RIGHT: max(self.x, self.x2), EDGE_BOTTOM: max(self.y, self.y2), EDGE_LEFT: min(self. x, self.x2)} def find_edges(self): """An image""" self.edges = {EDGE_TOP: self.y, EDGE_RIGHT: self.x + self.image.GetWidth(), EDGE_BOTTOM: self.y + self.image.GetWidth(), EDGE_LEFT: self.x} def find_edges(self): """Get the bounding rectangle for the polygon""" xmin = min(x for x, y in self.points) ymin = min(y for x, y in self.points) xmax = max(x for x, y in self.points) ymax = max(y for x, y in self.points) self.edges = {EDGE_TOP: ymin, EDGE_RIGHT: xmax, EDGE_BOTTOM: ymax, EDGE_LEFT: xmin} And here's the code I have so far to implement the scrolling when a shape nears the edge: def check_canvas_scroll(self, x, y, moving=False): """ We check that the x/y coords are within 50px from the edge of the canvas and scroll the canvas accordingly. If the shape is being moved, we need to check specific edges of the shape (e.g. left/right side of rectangle) """ size = self.board.GetClientSizeTuple() # visible area of the canvas if not self.board.area > size: # canvas is too small to need to scroll return start = self.board.GetViewStart() # user's starting "viewport" scroll = (-1, -1) # -1 means no change if moving: if self.shape.edges[EDGE_RIGHT] > start[0] + size[0] - 50: scroll = (start[0] + 5, -1) if self.shape.edges[EDGE_BOTTOM] > start[1] + size[1] - 50: scroll = (-1, start[1] + 5) # snip others else: if x > start[0] + size[0] - 50: scroll = (start[0] + 5, -1) if y > start[1] + size[1] - 50: scroll = (-1, start[1] + 5) # snip others self.board.Scroll(*scroll) This code actually works pretty well. If we're moving a shape, then we need to know its edges to calculate when they're coming close to the canvas edge. If we're resizing just a single point, then we just use the x/y coords of that point to see if it's close to the edge. The problem I'm having is a little tricky to describe - basically, if you move a shape to the left, and stop moving it, if you positioned the shape within the 50px from the canvas, then the next time you go to move the shape, the code that says "ok, is this shape close to the end?" gets triggered, and the canvas scrolls to the left, even if you're moving the shape to the right. Can anyone think on how to stop this? I created a youtube video to demonstrate the issue. At about 0:54, I move a polygon to the left of the canvas and position it there. The next time I move it, the canvas scrolls to the left even though I'm moving it right Another thing I'd like to add, but I'm stuck on is the scroll gaining momentum the longer a shape is scrolling? So, with a large canvas, you're not moving a shape for ages, moving 5px at a time, when you need to cover a 2000px distance. Any suggestions there? Thanks all - sorry for the super long question!

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  • How to Pass a JS Variable to a PHP Variable

    - by dmullins
    Hello: I am working on a web application that currently provides a list of documents in a MySql database. Each document in the list has an onclick event that is suppose to open the specific document, however I am unable to do this. My list gets popluated using Ajax. Here is the code excerpt (JS): function stateChanged() { if (xmlhttp.readyState==4) { //All documents// document.getElementById("screenRef").innerHTML="<font id='maintxt'; name='title'; onclick='fileopen()'; color='#666666';>" + xmlhttp.responseText + "</font>"; } } } The onclick=fileopen event above triggers the next code excerpt, which downloads the file (JS): function stateChanged() { if (xmlhttp.readyState==4) { //Open file var elemIF = document.createElement("iframe"); elemIF.src = url; elemIF.style.display = "none"; document.body.appendChild(elemIF); } } } Lastly, the openfile onclick event triggers the following php code to find the file for downloading (php): $con = mysql_connect("localhost", "root", "password"); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("Documents", $con); $query = mysql_query("SELECT name, type, size, content FROM upload WHERE name = NEED JS VARIABLE HERE"); $row = mysql_fetch_array($query); header ("Content-type: ". $row['type']); header ("Content-length: ". $row['size']); header ("Content-Disposition: attachement; filename=". $row['name']); echo $row['content']; This code works well, for downloading a file. If I omit the WHERE portion of the Sql query, the onclick event will download the first file. Somehow, I need to get the screenRef element text and change it into a variable that my php file can read. Does anyone know how to do this? Also, without any page refreshes. I really appreciate everyone's feedback and thank you in advance. DFM

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  • Blurry text in WPF even with ClearTypeHinting enabled?

    - by rFactor
    I have a grid with this template and styles in WPF/XAML: <Setter Property="TextOptions.TextFormattingMode" Value="Display" /> <Setter Property="RenderOptions.ClearTypeHint" Value="Enabled" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type DataGridCell}"> <Border Padding="{TemplateBinding Padding}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"> <ContentPresenter x:Name="CellContent" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" RenderOptions.ClearTypeHint="Enabled" /> </Border> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter TargetName="CellContent" Property="TextOptions.TextFormattingMode" Value="Display" /> <Setter TargetName="CellContent" Property="RenderOptions.ClearTypeHint" Value="Enabled" /> <Setter TargetName="CellContent" Property="Effect"> <Setter.Value> <DropShadowEffect ShadowDepth="2" BlurRadius="2" Color="Black" RenderingBias="Quality" /> </Setter.Value> </Setter> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> The DropShadowEffect I have when you select a grid row, seems to make the text rendering blurry (gray anti-aliasing): When I remove the drop shadow effect, it looks clear because it now uses ClearType and not gray sub-pixel anti-aliasing: I have tried applying RenderOptions.ClearTypeHint="Enabled" to the ContentPresenter as seen above, but it does not help. How do I force WPF to render the text that gets displayed with drop shadow effect to retain Cleartype anti-aliasing, instead of that ugly blurry gray sub-pixel anti-aliasing? Some believe it's blurry because of the drop shadow -- this is not true. It's blurry only because ClearType is not used. This is how it looks like in Firefox when shadow AND ClearType: ClearType enabled text is colorful -- but that blurry text is not, because it does not use ClearType -- it uses gray sub-pixel anti-aliasing and that's not how ClearType works: http://en.wikipedia.org/wiki/ClearType The question is: how do I enable ClearType for this text?

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  • What's the right way to do mutable data structures (e.g., skip lists, splay trees) in F#?

    - by dan
    What's a good way to implement mutable data structures in F#? The reason I’m asking is because I want to go back and implement the data structures I learned about in the algorithms class I took this semester (skip lists, splay trees, fusion trees, y-fast tries, van Emde Boas trees, etc.), which was a pure theory course with no coding whatsoever, and I figure I might as well try to learn F# while I’m doing it. I know that I “should” use finger trees to get splay tree functionality in a functional language, and that I should do something with laziness to get skip-list functionality, etc. , but I want to get the basics nailed down before I try playing with purely functional implementations. There are lots of examples of how to do functional data structures in F#, but there isn’t much on how to do mutable data structures, so I started by fixing up the doubly linked list here into something that allows inserts and deletes anywhere. My plan is to turn this into a skip list, and then use a similar structure (discriminated union of a record) for the tree structures I want to implement. Before I start on something more substantial, is there a better way to do mutable structures like this in F#? Should I just use records and not bother with the discriminated union? Should I use a class instead? Is this question "not even wrong"? Should I be doing the mutable structures in C#, and not dip into F# until I want to compare them to their purely functional counterparts? And, if a DU of records is what I want, could I have written the code below better or more idiomatically? It seems like there's a lot of redundancy here, but I'm not sure how to get rid of it. module DoublyLinkedList = type 'a ll = | None | Node of 'a ll_node and 'a ll_node = { mutable Prev: 'a ll; Element : 'a ; mutable Next: 'a ll; } let insert x l = match l with | None -> Node({ Prev=None; Element=x; Next=None }) | Node(node) -> match node.Prev with | None -> let new_node = { Prev=None; Element=x; Next=Node(node)} node.Prev <- Node(new_node) Node(new_node) | Node(prev_node) -> let new_node = { Prev=node.Prev; Element=x; Next=Node(node)} node.Prev <- Node(new_node) prev_node.Next <- Node(new_node) Node(prev_node) let rec nth n l = match n, l with | _,None -> None | _,Node(node) when n > 0 -> nth (n-1) node.Next | _,Node(node) when n < 0 -> nth (n+1) node.Prev | _,Node(node) -> Node(node) //hopefully only when n = 0 :-) let rec printLinkedList head = match head with | None -> () | Node(x) -> let prev = match x.Prev with | None -> "-" | Node(y) -> y.Element.ToString() let cur = x.Element.ToString() let next = match x.Next with | None -> "-" | Node(y) -> y.Element.ToString() printfn "%s, <- %s -> %s" prev cur next printLinkedList x.Next

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  • Positioning element under another

    - by Cedar Jensen
    I am not an expert web-dev so please bear with me here. I would like to display a banner style header for a page with the top part taken up by an image that is 275x116 and then a horizontal menu bar (styled using ul items) appearing at 70% from the top of the banner. How would I set this up so that the banner appears underneath my navigation? Currently, a portion of the left side of my menu bar sits underneath the image but I'd like it to be the opposite so the menu bar is above the image, some thing like this: ============= <start of header> =========== -------- | img | | | | Horizontal menu | | -------- ============= <end of header> =========== My css: #header { background-color: green; border: 0; margin: 0; padding: 0; overflow: hidden; width: 100%; height: 120px; } #logo { background: green url(images/logo.png) no-repeat scroll 0 0; margin: 0px 0px; border: 1px solid white; left: 20px; top: 20px; width: 275px; height: 116px; position: absolute; z-index: -1000; } .container { border:1px solid grey; margin-left:auto; margin-right:auto; width:960px; } My Html: <body> <div id="header"> <div id="logo"> </div> <div class="container" id="primaryNavbar"> <ul> <li><a href="#">Home</a></li> <li><a href="#">Books</a></li> <li><a href="#">Shows</a></li> <li><a href="#">Movies</a></li> </ul> <div class="clear">&nbsp;</div> </div> <!-- end of container --> </div> <!-- end of header --> </body> I thought that setting the position to "absolute" for the logo element and adding in a very low z-index would achieve this but that isn't the case here. Any suggestions?

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  • fit a ellipse in Python given a set of points xi=(xi,yi)

    - by Gianni
    I am computing a series of index from a 2D points (x,y). One index is the ratio between minor and major axis. To fit the ellipse i am using the following post when i run these function the final results looks strange because the center and the axis length are not in scale with the 2D points center = [ 560415.53298363+0.j 6368878.84576771+0.j] angle of rotation = (-0.0528033467597-5.55111512313e-17j) axes = [0.00000000-557.21553487j 6817.76933256 +0.j] thanks in advance for help import numpy as np from numpy.linalg import eig, inv def fitEllipse(x,y): x = x[:,np.newaxis] y = y[:,np.newaxis] D = np.hstack((x*x, x*y, y*y, x, y, np.ones_like(x))) S = np.dot(D.T,D) C = np.zeros([6,6]) C[0,2] = C[2,0] = 2; C[1,1] = -1 E, V = eig(np.dot(inv(S), C)) n = np.argmax(np.abs(E)) a = V[:,n] return a def ellipse_center(a): b,c,d,f,g,a = a[1]/2, a[2], a[3]/2, a[4]/2, a[5], a[0] num = b*b-a*c x0=(c*d-b*f)/num y0=(a*f-b*d)/num return np.array([x0,y0]) def ellipse_angle_of_rotation( a ): b,c,d,f,g,a = a[1]/2, a[2], a[3]/2, a[4]/2, a[5], a[0] return 0.5*np.arctan(2*b/(a-c)) def ellipse_axis_length( a ): b,c,d,f,g,a = a[1]/2, a[2], a[3]/2, a[4]/2, a[5], a[0] up = 2*(a*f*f+c*d*d+g*b*b-2*b*d*f-a*c*g) down1=(b*b-a*c)*( (c-a)*np.sqrt(1+4*b*b/((a-c)*(a-c)))-(c+a)) down2=(b*b-a*c)*( (a-c)*np.sqrt(1+4*b*b/((a-c)*(a-c)))-(c+a)) res1=np.sqrt(up/down1) res2=np.sqrt(up/down2) return np.array([res1, res2]) if __name__ == '__main__': points = [(560036.4495758876, 6362071.890493258), (560036.4495758876, 6362070.890493258), (560036.9495758876, 6362070.890493258), (560036.9495758876, 6362070.390493258), (560037.4495758876, 6362070.390493258), (560037.4495758876, 6362064.890493258), (560036.4495758876, 6362064.890493258), (560036.4495758876, 6362063.390493258), (560035.4495758876, 6362063.390493258), (560035.4495758876, 6362062.390493258), (560034.9495758876, 6362062.390493258), (560034.9495758876, 6362061.390493258), (560032.9495758876, 6362061.390493258), (560032.9495758876, 6362061.890493258), (560030.4495758876, 6362061.890493258), (560030.4495758876, 6362061.390493258), (560029.9495758876, 6362061.390493258), (560029.9495758876, 6362060.390493258), (560029.4495758876, 6362060.390493258), (560029.4495758876, 6362059.890493258), (560028.9495758876, 6362059.890493258), (560028.9495758876, 6362059.390493258), (560028.4495758876, 6362059.390493258), (560028.4495758876, 6362058.890493258), (560027.4495758876, 6362058.890493258), (560027.4495758876, 6362058.390493258), (560026.9495758876, 6362058.390493258), (560026.9495758876, 6362057.890493258), (560025.4495758876, 6362057.890493258), (560025.4495758876, 6362057.390493258), (560023.4495758876, 6362057.390493258), (560023.4495758876, 6362060.390493258), (560023.9495758876, 6362060.390493258), (560023.9495758876, 6362061.890493258), (560024.4495758876, 6362061.890493258), (560024.4495758876, 6362063.390493258), (560024.9495758876, 6362063.390493258), (560024.9495758876, 6362064.390493258), (560025.4495758876, 6362064.390493258), (560025.4495758876, 6362065.390493258), (560025.9495758876, 6362065.390493258), (560025.9495758876, 6362065.890493258), (560026.4495758876, 6362065.890493258), (560026.4495758876, 6362066.890493258), (560026.9495758876, 6362066.890493258), (560026.9495758876, 6362068.390493258), (560027.4495758876, 6362068.390493258), (560027.4495758876, 6362068.890493258), (560027.9495758876, 6362068.890493258), (560027.9495758876, 6362069.390493258), (560028.4495758876, 6362069.390493258), (560028.4495758876, 6362069.890493258), (560033.4495758876, 6362069.890493258), (560033.4495758876, 6362070.390493258), (560033.9495758876, 6362070.390493258), (560033.9495758876, 6362070.890493258), (560034.4495758876, 6362070.890493258), (560034.4495758876, 6362071.390493258), (560034.9495758876, 6362071.390493258), (560034.9495758876, 6362071.890493258), (560036.4495758876, 6362071.890493258)] a_points = np.array(points) x = a_points[:, 0] y = a_points[:, 1] from pylab import * plot(x,y) show() a = fitEllipse(x,y) center = ellipse_center(a) phi = ellipse_angle_of_rotation(a) axes = ellipse_axis_length(a) print "center = ", center print "angle of rotation = ", phi print "axes = ", axes from pylab import * plot(x,y) plot(center[0:1],center[1:], color = 'red') show() each vertex is a xi,y,i point plot of 2D point and center of fit ellipse

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