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  • JS: Why isn't this variable available to the other functions?

    - by Marius Jonsson
    Hello there, I've am trying to make a canvas animation: var context; var meter; var pin; function init() { var meter = new Image(); var pin = new Image(); var context = document.getElementById('canvas').getContext('2d'); meter.src = 'background.png'; pin.src = 'needle.png'; context.drawImage(meter,0,0); context.translate(275,297); context.save(); setTimeout(startup,500); } function startup() { var r=2; // set rpm here. var i=r*36-27; var angleInRadians = 3.14159265 * i/180; //converting degree to radian context.rotate(angleInRadians); //rotating by angle context.drawImage(pin,-250,-3); //adjusting pin center at meter center context.restore(); } You can see the script at http://www.kingoslo.com/instruments/ With firebug I get error saying that context is undefined, which I think is strange. Thanks. Kind regards, Marius

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  • access settings from whole jquery component

    - by Pacuraru Daniel
    I am trying to develop a jquery component for dialog modals and i dont know how to access the settings from all component functions. I need to access settings,zIndex from open function and it seems to not work. (function($) { var methods = { init: function(options) { var defaults = { bgClass: "fancy-dialog-bg", bgShow: null, zIndex: 100, show: null }; var settings = $.extend(defaults, options); return this.each(function() { var obj = $(this).hide().css("position", "fixed").css("z-index", settings.zIndex).css("left", "300px").css("top", "200px"); }); }, open: function() { // alert(settings.zIndex); not working var tes = $("<div></div>").css("backgroundColor", "#f00").css("position", "fixed").css("z-index", "99").css("width", "50%").css("height", "100%").css("left", "0").css("top", "0"); $('body').append(tes); var obj = $(this); obj.show(); }, close: function() { var obj = $(this); $("#fancy-dialog-bg-" + obj.attr('id')).remove(); obj.hide(); } }; $.fn.fancyDialog = function(method) { if (methods[method]) { return methods[method].apply(this, Array.prototype.slice.call(arguments, 1)); } else if (typeof method === 'object' || !method) { return methods.init.apply(this, arguments); } else { $.error('Method ' + method + ' does not exist.'); } }; })(jQuery);

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  • Makefile variable initialization and export

    - by Michael
    somevar := apple export somevar update := $(shell echo "v=$$somevar") all: @echo $(update) I was hoping to apple as output of command, however it's empty, which makes me think export and := variable expansion taking place on different phases. how to overcome this?

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  • Is it good practice to use std::size_t all over the place?

    - by dehmann
    I have a lot of constants in my code that are unsigned numbers, e.g. counters, frequency cutoffs, lengths, etc. I started using std::size_t for all of these, instead of int or unsigned int. Is that the right thing to do? I started it because the STL containers use it for their sizes, it's used for string position, etc.

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  • Pass a variable into a trigger

    - by Codesleuth
    I have a trigger which deals with some data for logging purposes like so: CREATE TRIGGER trgDataUpdated ON tblData FOR UPDATE AS BEGIN INSERT INTO tblLog ( ParentID, OldValue, NewValue, UserID ) SELECT deleted.ParentID, deleted.Value, inserted.Value, @intUserID -- how can I pass this in? FROM inserted INNER JOIN deleted ON inserted.ID = deleted.ID END How can I pass in the variable @intUserID into the above trigger, as in the following code: DECLARE @intUserID int SET @intUserID = 10 UPDATE tblData SET Value = @x PS: I know I can't literally pass in @intUserID to the trigger, it was just used for illustration purposes.

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  • Set environment variable in Ubuntu

    - by Junho Park
    In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6. I open a terminal and type in the following to set the JAVA_HOME environment variable: export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun And in that same terminal window, I type the following to check that the environment variable has been updated: echo $JAVA_HOME And I see /usr/lib/jvm/java-1.5.0-sun which is what I'm expecting to see. In addition, I modify ~/.profile and set the JAVA_HOME environment variable to /usr/lib/jvm/java-1.5.0-sun. And now for the problem--when I open a new terminal window and I check my JAVA_HOME environment variable by typing in echo $JAVA_HOME I see that my JAVA_HOME environment variable has been reverted back to Java 6. When I reboot my machine (or log out and back in, I suppose) the JAVA_HOME environment variable is set to Java 5 (presumably because of the modification I made in my ~/.profile). Is there a way around this so that I can change my JAVA_HOME environment without having to log out and back in (AND make that environment variable change stick in all new terminal windows)?

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  • Change the Session Variable Output

    - by user567230
    Hello I am using Dreamweaver CS5 with Coldfusion 9 to build a dynamic website. I have a MS Access Database that stores login information which includes ID, FullName, FirstName, LastName, Username, Pawword, AcessLevels. My question is this: I currently have session variable to track the Username when it is entered into the login page. However I would like to use that Username to pull the User's FullName to display throughout the web pages and use for querying data. How do I change the session variable to read that when they are not entering their FullName on the login page but only Username and password. I have listed my login information code below if there is any additional information needed please let me know. This is the path for which the FullName values reside DataSource "Access" Table "Logininfo" Field "FullName" I want the FullName to be unique based on the Username submitted from the Login page. I apologize in advance for any rookie mistake I may have made I am new to this but learning fast! Ha. <cfif IsDefined("FORM.username")> <cfset MM_redirectLoginSuccess="members_page.cfm"> <cfset MM_redirectLoginFailed="sorry.cfm"> <cfquery name="MM_rsUser" datasource="Access"> SELECT FullName, Username,Password,AccessLevels FROM Logininfo WHERE Username=<cfqueryparam value="#FORM.username#" cfsqltype="cf_sql_clob" maxlength="50"> AND Password=<cfqueryparam value="#FORM.password#" cfsqltype="cf_sql_clob" maxlength="50"> </cfquery> <cfif MM_rsUser.RecordCount NEQ 0> <cftry> <cflock scope="Session" timeout="30" type="Exclusive"> <cfset Session.MM_Username=FORM.username> <cfset Session.MM_UserAuthorization=MM_rsUser.AccessLevels[1]> </cflock> <cfif IsDefined("URL.accessdenied") AND false> <cfset MM_redirectLoginSuccess=URL.accessdenied> </cfif> <cflocation url="#MM_redirectLoginSuccess#" addtoken="no"> <cfcatch type="Lock"> <!--- code for handling timeout of cflock ---> </cfcatch> </cftry> </cfif> <cflocation url="#MM_redirectLoginFailed#" addtoken="no"> <cfelse> <cfset MM_LoginAction=CGI.SCRIPT_NAME> <cfif CGI.QUERY_STRING NEQ ""> <cfset MM_LoginAction=MM_LoginAction & "?" & XMLFormat(CGI.QUERY_STRING)> </cfif> </cfif>

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  • Problem Passing Variable to Submit Form in Firefox

    - by George
    In the following example, I have a link that sends a variable to a function which checks if the variable is true and, if so, submits a form on the page. This has been tested and works in IE, Safari, and Chrome, but not Firefox. Trying to figure out what's wrong in Firefox. The function which checks 'action' and then submits form 'login' : function submit(action) { if (action == "submit") { document.login.submit(); } } Link to pass action variable and submit form: <a href="javascript:submit('submit');">SEND FORM</a> When I remove the check and just have the following, it works fine in Firefox: function submit() { document.login.submit(); } <a href="javascript:submit();">SEND FORM</a>

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  • What is the best method to convert to an Integer in JavaScript?

    - by Mathew Byrne
    There are several different methods for converting floating point numbers to Integers in JavaScript. My question is what method gives the best performance, is most compatible, or is considered the best practice? Here are a few methods that I know of: var a = 2.5; window.parseInt(a); // 2 Math.floor(a); // 2 a | 0; // 2 I'm sure there are others out there. Suggestions?

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  • Pointer to local variable

    - by Radek Šimko
    May I have any acces to local variable in different function? If may, how? void replaceNumberAndPrint(int array[3]) { printf("%i\n", array[1]); printf("%i\n", array[1]); } int * getArray() { int myArray[3] = {4, 65, 23}; return myArray; } int main() { replaceNumberAndPrint(getArray()); } The output of the piece of code above: 65 4202656 What am i doing wrong? What the "4202656" means?? Do I have to copy the whole array in the replaceNumberAndPrint() function to be able to access to it more than first times?

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  • Get variable value from XML to JavaScript. Pure way.

    - by kalininew
    I have XML: <point> ... <longitude>34.123123</longitude> </point> <point> ... <longitude>11.12534534</longitude> </point> <point> ... <longitude>32.567653</longitude> </point> <point> ... <longitude>33.345345</longitude> </point> ... Task: get values of <longitude> in javascript (in variable). Which is purest way? It is possible to do it without XSLT (without making dummy elements)?

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  • JQuery use variable by name of divID

    - by Russell Parrott
    Just a quick question, that I cannot fathom out, hope you guys and girls can help. I have a div (with ID) that when clicked opens a new div - great works well, what I really want is to "populate" the new div with predefined text based on the clicked div's ID. example: <div class="infobox" id="help_msg1">Click me</div> I may have say 3 (actually more but...) of these div's This opens: <div id="helpbox">text in here</div> In/on my .js page I have doc ready etc then: var help_msg1 ='text that is a help message'; var help_msg2 ='text that is another help message'; var help_msg3 ='text that is yet another help message'; Then $('.infobox').live('click',function() { $('#helpbox').remove(); $('label').css({'font-weight': '400'}); $(this).next('label').css({'font-weight': '900'}); var offset = $(this).next().next().offset(); var offsetby = $(this).next().next().width(); var leftitby = offset.left+offsetby+10; $('body').append('text in here'); $('#helpbox').css( { 'left': leftitby, 'top': offset.top } ); }); Note I remove each #helpbox before appending the new one and the .next().next() identifies the appropriate text input that lot all works. What I need is how do I put var help_msg1 into the append when id="help_msg1" is clicked or var help_msg2 when id="help_msg2" is clicked etc. I have tried

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  • To Search Only title tag for &raquo; using visual studio 2008

    - by Kuldeep Kumar
    i need to update only title tag of my website having around 3000 web pages. i have to replace » with Dash if it is present only in title tag. Please help if there is any way in visual studio 2008 to find a Standard HTML (DOM) Tag. i've done this using dreamweaver Advance text search. but on development machine, only visual studio 2008 is available.

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  • Constructor being called again?

    - by Halo
    I have this constructor; public UmlDiagramEntity(ReportElement reportElement, int pageIndex, Controller controller) { super(reportElement.getX1(), reportElement.getY1(), reportElement.getX2(), reportElement.getY2()); setLayout(null); this.pageIndex = pageIndex; this.controller = controller; reportElements = reportElement.getInternalReportElements(); components = new ArrayList<AbstractEntity>(); changedComponentIndex = -1; PageListener p = new PageListener(); this.addMouseMotionListener(p); this.addMouseListener(p); setPage(); } And I have an update method in the same class; @Override public void update(ReportElement reportElement) { if (changedComponentIndex == -1) { super.update(reportElement); } else { reportElements = reportElement.getInternalReportElements(); if (components.size() == reportElements.size()) { if (!isCommitted) { if (reportElement.getType() == ReportElementType.UmlRelation) { if (checkInvolvementAndSet(changedComponentIndex)) { anchorEntity(changedComponentIndex); } else { resistChanges(changedComponentIndex); } return; } } ..................goes on When I follow the flow from the debugger, I see that when update is called, somewhere in the method, the program goes into the constructor and executes it all over again (super, pageIndex, etc.). Why does it go to the constructor :D I didn't tell it to go there. I can make a deeper analysis and see where it goes to the constructor if you want. By the way, changedComponentIndex is a static variable.

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  • understanding list[i-1] vs list[i]-1

    - by user3720527
    Hopefully this is a simple answer that I am just failing to understand. Full code is public static void mystery(int[] list) { for( int i = list.length - 1; i>1; i --) { if (list[i] > list[i - 1]) { list[i -1] = list[i] - 2; list[i]++; } } } } and lets say we are using a list of [2,3,4]. I know that it will output 2,2,5 but I am unclear how to actually work through it. I understand that the list.length is 3 here, and I understand that the for loop will only run once, but I am very unclear what happens at the list[i - 1] = list[i] - 2; area. Should it be list[2-1] = list[2] - 2? How does the two being outside the bracket effect it differently? Much thanks.

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  • A question mark within a @PathVariable in Spring MVC?

    - by sp00m
    Within the @Controller of a search engine: @RequestMapping(value = "/search/{query}", method = RequestMethod.GET) public String search(@PathVariable String query) {} If a user wants to search /search/w?rld (wich should match world, warld, whrld, etc.), the variable query equals w, because of the question mark which indicated a GET var. I tried "/search/{query:.+}", but still doesn't work. Any idea how to solve that problem?

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  • Variable not implementing correctly from if statement

    - by swiftsly
    I have an if statement that is supposed to set the variable $pc162v to a link specified in the MySQL table if content exists in the $vid column of the row. The problem is, the PHP is detecting that there's a link in the MySQL, but isn't setting the $pc162v variable correctly. Here's the variable declarations: $pc162v = ""; $vid162 = '<embed width="420" height="236" src="'.$pc162v.'" type="application/x-shockwave-flash"></embed>'; Here's the section of the if statement: if (empty($row[7])) { $vid162 = ''; } else { $pc162v = $row[7]; } In my web browsers, the part of the code where the variable $vid162 is used, shows up as the following: <embed width="420" height="236" src="" type="application/x-shockwave-flash"> I have also tried setting $vid162 to: <embed width="420" height="236" src="<?php echo $pc162v; ?>" type="application/x-shockwave-flash"></embed> and that just makes the code in my web browser: <embed width="420" height="236" src="<?php echo $pc162v; ?>" type="application/x-shockwave-flash"> Hope someone has a solution! Thanks in advance.

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  • How to combine a list of choices to determine which select statement

    - by Larry
    I have a mysql db and am using php 5.2 What I am trying to do is offer a list of options for a person to select (only 1). The chosen option will cause a select, update, or delete statement to be ran. The results of the statement do not need to be shown, although, showing the old and then the new would be nice (no problems with that part tho'.). Pseudo-Code: Assign $choice = 0 Check the value of $choice // This way, if it = 100, we do a break Select a Choice:<br> 1. Adjust Status Value (+60) // $choice = 1<br> 2. Show all Ships <br> // $choice = 2 3. Show Ships in Port <br> // $choice = 3 ... 0. $choice="100" // if the value =100, quit this part Use either case (switch) or if/else statements to run the users choice1 If the choice is 1, then run the "Select" statement with the variable of $sql1 -- "SELECT .... If the choice is 2, then run the "Select" statement with the variable of $sql2 --- SELECT * FROM Ships If the choice is 3, then run the "Select" statement with the variable of $sql3 <br> .... If the choice is 0, then we are done. I figured the (3) statements would be assigned in php as: $sql1="...". $sql2="SELECT * FROM Ships" $sql3="SELECT * FROM Ships WHERE nPort="1" My idea was to use the switch statement, but got lost on it. :( I would like the options to be available over and over again, until a variable ($choice) is selected. In which case, this particular page is done and goes back to the "Main Menu"? The coding and display, if I use it, I can do. Just not sure how to write the way to select which one I want. It is possible that I would run all of the queries, and other times, only one, so that is why I would like the choice. An area I get confused in is the proper forms to use such as -- ' ' " " and ...?? Not sure the # of options I will end up with, but it will be more than 5 but less than 20 / page. So if I get the system down for 2-3 choices, I can replicate it for as many as I may need. And, as always, if a better way exists, I am willing to try it. Thanks again... Larry

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  • Passing variable from main to Async class

    - by Bigflow
    Somehow, I can't get this done. This is all what I tried till now: Main: private String myState; public String getState() { return myState; } public void setState(String s) { myState = s; } Async: Main appState = ((Main)getApplicationContext()); String state = appState.getState(); Error: No enclosing instance of the type Main is accessible in scope Tried with Helper(Globals) class. public class Globals extends Application{ private String test= "1"; } Main: private Globals mGlobals; mGlobals = new Globals(); mGlobals.test = "2"; //Do Async thing Async: private Globals mGlobals; mGlobals = new Globals(); print mGlobals.test; // (result is 1, should be 2) Also something else, but don't remember good. Tried alot of things (backspace and del buttons are over-used :p ) But I can't get everything working. Async class doesn't have an activity. Code pasted: http://pastebin.com/ikcsdL1p

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