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• Is my class structure good enough?

  - by Rivten

  So I wanted to try out this challenge on reddit which is mostly about how you structure your data the best you can. I decided to challenge my C++ skills. Here's how I planned this. First, there's the Game class. It deals with time and is the only class main has access to. A game has a Forest. For now, this class does not have a lot of things, only a size and a Factory. Will be put in better use when it will come to SDL-stuff I guess A Factory is the thing that deals with the Game Objects (a.k.a. Trees, Lumberjack and Bears). It has a vector of all GameObjects and a queue of Events which will be managed at the end of one month. A GameObject is an abstract class which can be updated and which can notify the Event Listener The EventListener is a class which handles all the Events of a simulation. It can recieve events from a Game Object and notify the Factory if needed, the latter will manage correctly the event. So, the Tree, Lumberjack and Bear classes all inherits from GameObject. And Sapling and Elder Tree inherits from Tree. Finally, an Event is defined by an event_type enumeration (LUMBERJACK_MAWED, SAPPLING_EVOLUTION, ...) and an event_protagonists union (a GameObject or a pair of GameObject (who killed who ?)). I was quite happy at first with this because it seems quite logic and flexible. But I ended up questionning this structure. Here's why : I dislike the fact that a GameObject need to know about the Factory. Indeed, when a Bear moves somewhere, it needs to know if there's a Lumberjack ! Or it is the Factory which handles places and objects. It would be great if a GameObject could only interact with the EventListener... or maybe it's not that much of a big deal. Wouldn't it be better if I separate the Factory in three vectors ? One for each kind of GameObject. The idea would be to optimize research. If I'm looking do delete a dead lumberjack, I would only have to look in one shorter vector rather than a very long vector. Another problem arises when I want to know if there is any particular object in a given case because I have to look for all the gameObjects and see if they are at the given case. I would tend to think that the other idea would be to use a matrix but then the issue would be that I would have empty cases (and therefore unused space). I don't really know if Sapling and Elder Tree should inherit from Tree. Indeed, a Sapling is a Tree but what about its evolution ? Should I just delete the sapling and say to the factory to create a new Tree at the exact same place ? It doesn't seem natural to me to do so. How could I improve this ? Is the design of an Event quite good ? I've never used unions before in C++ but I didn't have any other ideas about what to use. Well, I hope I have been clear enough. Thank you for taking the time to help me !

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• Activation Error while testing Exception Handling Application Block

  - by CletusLoomis

  I'm getting the following error while testing my EHAB implementation: {"Activation error occured while trying to get instance of type ExceptionPolicyImpl, key "LogPolicy""} System.Exception Stack Trace: StackTrace " at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType, String key) in c:\Home\Chris\Projects\CommonServiceLocator\main\Microsoft.Practices.ServiceLocation\ServiceLocatorImplBase.cs:line 53 at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance[TService](String key) in c:\Home\Chris\Projects\CommonServiceLocator\main\Microsoft.Practices.ServiceLocation\ServiceLocatorImplBase.cs:line 103 at Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicy.GetExceptionPolicy(Exception exception, String policyName) in e:\Builds\EntLib\Latest\Source\Blocks\ExceptionHandling\Src\ExceptionHandling\ExceptionPolicy.cs:line 131 at Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicy.HandleException(Exception exceptionToHandle, String policyName) in e:\Builds\EntLib\Latest\Source\Blocks\ExceptionHandling\Src\ExceptionHandling\ExceptionPolicy.cs:line 55 at Blackbox.Exception.ExceptionMain.LogException(Exception pException) in C:_Work_Black Box\Blackbox.Exception\ExceptionMain.vb:line 14 at BlackBox.Business.BusinessMain.TestExceptionHandling() in C:_Work_Black Box\BlackBox.Business\BusinessMain.vb:line 16 at Blackbox.Service.Service1.TestExceptionHandling() in C:_Work_Black Box\Blackbox.Service\Service.svc.vb:line 43" String Inner Exception: InnerException {"Resolution of the dependency failed, type = "Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyImpl", name = "LogPolicy". Exception occurred while: Calling constructor Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener(System.String source, System.String log, System.String machineName, Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter formatter). Exception is: ArgumentException - Event log names must consist of printable characters and cannot contain \, *, ?, or spaces At the time of the exception, the container was: Resolving Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyImpl,LogPolicy Resolving parameter "policyEntries" of constructor Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyImpl(System.String policyName, System.Collections.Generic.IEnumerable1[[Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyEntry, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]] policyEntries) Resolving Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyEntry,LogPolicy.All Exceptions Resolving parameter "handlers" of constructor Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicyEntry(System.Type exceptionType, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.PostHandlingAction postHandlingAction, System.Collections.Generic.IEnumerable1[[Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.IExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]] handlers, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Instrumentation.IExceptionHandlingInstrumentationProvider instrumentationProvider) Resolving Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler,LogPolicy.All Exceptions.Logging Exception Handler (mapped from Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.IExceptionHandler, LogPolicy.All Exceptions.Logging Exception Handler) Resolving parameter "writer" of constructor Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler(System.String logCategory, System.Int32 eventId, System.Diagnostics.TraceEventType severity, System.String title, System.Int32 priority, System.Type formatterType, Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter writer) Resolving Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterImpl,LogWriter.default (mapped from Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter, (none)) Resolving parameter "structureHolder" of constructor Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterImpl(Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder structureHolder, Microsoft.Practices.EnterpriseLibrary.Logging.Instrumentation.ILoggingInstrumentationProvider instrumentationProvider, Microsoft.Practices.EnterpriseLibrary.Logging.ILoggingUpdateCoordinator updateCoordinator) Resolving Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder,LogWriterStructureHolder.default (mapped from Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder, (none)) Resolving parameter "traceSources" of constructor Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder(System.Collections.Generic.IEnumerable1[[Microsoft.Practices.EnterpriseLibrary.Logging.Filters.ILogFilter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]] filters, System.Collections.Generic.IEnumerable1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] traceSourceNames, System.Collections.Generic.IEnumerable1[[Microsoft.Practices.EnterpriseLibrary.Logging.LogSource, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]] traceSources, Microsoft.Practices.EnterpriseLibrary.Logging.LogSource allEventsTraceSource, Microsoft.Practices.EnterpriseLibrary.Logging.LogSource notProcessedTraceSource, Microsoft.Practices.EnterpriseLibrary.Logging.LogSource errorsTraceSource, System.String defaultCategory, System.Boolean tracingEnabled, System.Boolean logWarningsWhenNoCategoriesMatch, System.Boolean revertImpersonation) Resolving Microsoft.Practices.EnterpriseLibrary.Logging.LogSource,General Resolving parameter "traceListeners" of constructor Microsoft.Practices.EnterpriseLibrary.Logging.LogSource(System.String name, System.Collections.Generic.IEnumerable1[[System.Diagnostics.TraceListener, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] traceListeners, System.Diagnostics.SourceLevels level, System.Boolean autoFlush, Microsoft.Practices.EnterpriseLibrary.Logging.Instrumentation.ILoggingInstrumentationProvider instrumentationProvider) Resolving Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.ReconfigurableTraceListenerWrapper,Event Log Listener (mapped from System.Diagnostics.TraceListener, Event Log Listener) Resolving parameter "wrappedTraceListener" of constructor Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.ReconfigurableTraceListenerWrapper(System.Diagnostics.TraceListener wrappedTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging.ILoggingUpdateCoordinator coordinator) Resolving Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener,Event Log Listener?implementation (mapped from System.Diagnostics.TraceListener, Event Log Listener?implementation) Calling constructor Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener(System.String source, System.String log, System.String machineName, Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter formatter) "} System.Exception My web.config is as follows: <?xml version="1.0"?> <configuration> <configSections> <section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> <section name="exceptionHandling" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Configuration.ExceptionHandlingSettings, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" /> </configSections> <loggingConfiguration name="" tracingEnabled="true" defaultCategory="General"> <listeners> <add name="Event Log Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" source="Enterprise Library Logging" formatter="Text Formatter" log="C:\Blackbox.log" machineName="." traceOutputOptions="LogicalOperationStack, DateTime, Timestamp, Callstack" /> </listeners> <formatters> <add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" template="Timestamp: {timestamp}{newline}&#xA;Message: {message}{newline}&#xA;Category: {category}{newline}&#xA;Priority: {priority}{newline}&#xA;EventId: {eventid}{newline}&#xA;Severity: {severity}{newline}&#xA;Title:{title}{newline}&#xA;Machine: {localMachine}{newline}&#xA;App Domain: {localAppDomain}{newline}&#xA;ProcessId: {localProcessId}{newline}&#xA;Process Name: {localProcessName}{newline}&#xA;Thread Name: {threadName}{newline}&#xA;Win32 ThreadId:{win32ThreadId}{newline}&#xA;Extended Properties: {dictionary({key} - {value}{newline})}" name="Text Formatter" /> </formatters> <categorySources> <add switchValue="All" name="General"> <listeners> <add name="Event Log Listener" /> </listeners> </add> </categorySources> <specialSources> <allEvents switchValue="All" name="All Events" /> <notProcessed switchValue="All" name="Unprocessed Category" /> <errors switchValue="All" name="Logging Errors &amp; Warnings"> <listeners> <add name="Event Log Listener" /> </listeners> </errors> </specialSources> </loggingConfiguration> <exceptionHandling> <exceptionPolicies> <add name="LogPolicy"> <exceptionTypes> <add name="All Exceptions" type="System.Exception, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" postHandlingAction="NotifyRethrow"> <exceptionHandlers> <add name="Logging Exception Handler" type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging.LoggingExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" logCategory="General" eventId="100" severity="Error" title="Enterprise Library Exception Handling" formatterType="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.TextExceptionFormatter, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling" priority="0" /> </exceptionHandlers> </add> </exceptionTypes> </add> <add name="WcfExceptionShielding"> <exceptionTypes> <add name="InvalidOperationException" type="System.InvalidOperationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" postHandlingAction="ThrowNewException"> <exceptionHandlers> <add type="Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.WCF.FaultContractExceptionHandler, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.WCF, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" exceptionMessageResourceType="" exceptionMessageResourceName="This is the message" exceptionMessage="This is the exception" faultContractType="Blackbox.Service.WCFFault, Blackbox.Service, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="Fault Contract Exception Handler"> <mappings> <add source="{Guid}" name="Id" /> <add source="{Message}" name="MessageText" /> </mappings> </add> </exceptionHandlers> </add> </exceptionTypes> </add> </exceptionPolicies> </exceptionHandling> <connectionStrings> <add name="CompassEntities" connectionString="metadata=~\bin\CompassModel.csdl|~\bin\CompassModel.ssdl|~\bin\CompassModel.msl;provider=Devart.Data.Oracle;provider connection string=&quot;User Id=foo;Password=foo;Server=foo64mo;Home=OraClient11g_home1;Persist Security Info=True&quot;" providerName="System.Data.EntityClient" /> <add name="BlackboxEntities" connectionString="metadata=~\bin\BlackboxModel.csdl|~\bin\BlackboxModel.ssdl|~\bin\BlackboxModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=sqldev1\cps;Initial Catalog=FundServ;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /> </connectionStrings> <system.web> <compilation debug="true" strict="false" explicit="true" targetFramework="4.0" /> </system.web> <system.serviceModel> <behaviors> <serviceBehaviors> <behavior> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> </system.serviceModel> <system.webServer> <modules runAllManagedModulesForAllRequests="true"/> </system.webServer> </configuration> My code is as follows: Public Shared Function LogException(ByVal pException As System.Exception) As Boolean Return ExceptionPolicy.HandleException(pException, "LogPolicy") End Function Any assistance is appreciated.

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• logparser not matching on a LIKE pattern

  - by user79339

  Hi I seem to have the strangest problem. I am using logparser to search an event log for some text that I know is there (i copied and pasted the string from the event into the sql search string). But the sql LIKE statement is returning a empty results. But other LIKE statments seem to be working file. I have even tried using two '%' symbols in case the shell was trying to replace the search pattern with an environment variable '%%NavigationOccuredEventHandler%%', escaping the % with a \ and with a ' but all these just give me "No valid LIKE mask" error My logparser command - C:\Program Files\Log Parser 2.2LogParser.exe "select * from D:\Temp\07i132ppa1_app.evt where Message like '%NavigationOccuredEventHandler%' " -i:EVT -o:Datagrid The Entry in event log (found using "Select * from D:\Temp\07i132ppa1_app.evt" and doing a copy paste of relevant row) - 'D:\Temp\07i132ppa1_app.evt 5976788 2010-03-09 11:53:23 2010-03-09 11:53:23 2 1 Error event 0 None ICP Timestamp: 9/03/2010 1:53:23 AM Message: Error # 068464030040-07I132PPA1 System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object. at ClientRegistration.Controller.ContactDetailsController.NavigationOccuredEventHandler(Object sender, NavigateEventArgs e) at Microsoft.ApplicationBlocks.UIProcess.UIPManager.NavigateEventHandler.Invoke(Object sender, NavigateEventArgs e) at Microsoft.ApplicationBlocks.UIProcess.UIPManager.InvokeEventHandlers(State state) in . . . Truncated for brevity ' output Statistics: Elements processed: 240993 Elements output: 0 Execution time: 59.47 seconds But if i searched for the pattern '%object reference not set%' it works fine, returns results. I copied and pasted the string into a dummy sql table and ran the sql query there and it works fine. Just doesn't seem to work in logparser. Very baffling. Any help would be much appreciated

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• WPF: How to set column width with auto fill in ListView with custom user control.

  - by powerk

  A ListView with Datatemplate in GridViewColumn: <ListView Name ="LogDataList" IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding LogDataCollection}" Background="Cyan"> <ListView.View> <GridView AllowsColumnReorder="true" ColumnHeaderToolTip="Event Log Information"> <GridViewColumn Header="Event Log Name" Width="100"> <GridViewColumn.CellTemplate> <DataTemplate> <l:MyTextBlock Height="25" DataContext="{Binding LogName, Converter={StaticResource DataFieldConverter}}" HighlightMatchCase="{Binding Element}" Loaded="EditBox_Loaded"/> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> ... </GridView> </ListView.View> </ListView> I have no idea about how to make column width autofill although I have tried a lot of way to walk up. The general idea for demo is : <ListView Name ="LogDataList" IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding LogDataCollection}" Background="Cyan"> <ListView.Resources> <Style x:Key="ColumnWidthStyle" TargetType="{x:Null GridViewColumn}"> <Style.Setters> <Setter Property="HorizontalContentAlignment" Value="Stretch" > </Setter> </Style.Setters> </Style> </ListView.Resources> <ListView.View> <GridView AllowsColumnReorder="true" ColumnHeaderToolTip="Event Log Information"> <GridViewColumn Header="Event Log Name" DisplayMemberBinding="{Binding Path=LogName}" HeaderContainerStyle="{StaticResource ColumnWidthStyle}"> It works, but not accord with my demand. I need to customize datatemplate with my custom user control(MyTextBlock) since the enhancement(HighlighMatchCase property) and binding datacontext. How can I set up ColumnWidthMode with Fill in the word? On-line'in. I really appreciate your help.

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• VS 2010 beta 2 Web ReportViewer Bug?

  - by rip

  The report viewer doesn't seem to work in asp.net projects in VS 2010. You get the following error: Microsoft Jscript runtime error: ‘Microsoft’ is undefined. VS also breaks on the following line of javascript code: $create(Microsoft.Reporting.WebFormsClient.ReportViewer, {"_internalViewerId":"ctl00_MainContent_ReportViewer1_ctl03","id":"ctl00_MainContent_ReportViewer1"}, null, null); Steps to recreate problem: In Visual Studio 2010 beta 2 create a new asp.net project Drag a ScriptManager control on to default.aspx Drag a ReportViewer control on to default.aspx Build and run the project You then get the problem Is this a bug or am I doing something wrong?

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• Sorting deeply nested attributes in Rails

  - by Senthil

  I want to be able to drag and drag App model which is nested under Category model. http://railscasts.com/episodes/196-nested-model-form-part-1 's the Railscast I've tried to follow. Category controller def move params[:apps].each_with_index do |id, index| Category.last.apps.update(['position=?', index+1], ['id=?', Category.last.id]) end render :nothing => true end I'm able to sort Categories with something similar, but since I'm updating an attribute, I'm having trouble. def sort params[:categories].each_with_index do |id, index| Category.update_all(['position=?', index+1], ['id=?', id]) end render :nothing => true end Any help is appreciated.

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• Android: ScrollView in flipper

  - by Manu

  I have a flipper: <?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/ParentLayout" xmlns:android="http://schemas.android.com/apk/res/android" style="@style/MainLayout" > <LinearLayout android:id="@+id/FlipperLayout" style="@style/FlipperLayout"> <ViewFlipper android:id="@+id/viewflipper" style="@style/ViewFlipper"> <!--adding views to ViewFlipper--> <include layout="@layout/home1" android:layout_gravity="center_horizontal" /> <include layout="@layout/home2" android:layout_gravity="center_horizontal" /> </ViewFlipper> </LinearLayout> </LinearLayout> The first layout,home1, consists of a scroll view. What should I do to distinguish between the flipping gesture and the scrolling? Presently: if I remove the scroll view, I can swipe across if I add the scroll view, I can only scroll. I saw a suggestion that I should override onInterceptTouchEvent(MotionEvent), but I do not know how to do this. My code, at this moment, looks like this: public class HomeActivity extends Activity { -- declares @Override public void onCreate(Bundle savedInstanceState) { -- declares & preliminary actions LinearLayout layout = (LinearLayout) findViewById(R.id.ParentLayout); layout.setOnTouchListener(new OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { if (gestureDetector.onTouchEvent(event)) { return true; } return false; }}); @Override public boolean onTouchEvent(MotionEvent event) { gestureDetector.onTouchEvent(event); return true; } class MyGestureDetector extends SimpleOnGestureListener { @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { // http://www.codeshogun.com/blog/2009/04/16/how-to-implement-swipe-action-in-android/ } } } Can anybody please guide me in the right direction? Thank you.

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• Html Select List: why would onchange be called twice?

  - by Mark Redman

  I have a page with a select list (ASP.NET MVC Page) The select list and onchange event specified like this: <%=Html.DropDownList("CompanyID", Model.CompanySelectList, "(select company)", new { @class = "data-entry-field", @onchange = "companySelectListChanged()" })%> The companySelectListChanged function is getting called twice? I am using the nifty code in this question to get the caller. both times the caller is the onchange event, however if i look at the callers caller using: arguments.callee.caller.caller the first call returns some system code as the caller (i presume) and the second call returns undefined. I am checking for undefined to only react once to onchange, but this doesnt seem ideal, whcy would onchange be called twice? UPDATE: ok, found the culprit! ...apart from me :-) but the issue of calling the companySelectListChanged function twice still stands. The onchange event is set directly on the select as mentioned. This calls the companySelectListChanged function. ..notice the 'data-entry-field' class, now in a separate linked javascript file a change event on all fields with this class is bound to a function that changes the colour of the save button. This means there is two events on the onchange, but the companySelectListChanged is called twice? The additional binding is set as follows: $('.data-entry-field').bind('keypress keyup change', function (e) { highLightSaveButtons(); }); Assuming its possible to have 2 change events on the select list, its would assume that setting keypress & keyup events may be breaking something? Any ideas?

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• How To Create An ASP.NET Designer Host

  - by Zuhaib

  I have been asked to build an application where I can drag and drop few WebControls onto the WebPage designer surface. So far I have read some articles on .NET Framework Design-Time architecture, like, MSDN Article: Hosting WinForms Designers, Developer Function Article etc. But I can't a find a way to host WebForms designer. The only open source implementation that I could find was Mono Develop ASP.NET Visual Designer. But in mono they have used GTK# & Gecko etc to host the designer. I can't find a way to do the same using WinForms. Please suggest me what should I do. Give me some pointers. Should I go ahead and implement it using GTK# and Gecko? PS: My requirement is not very huge. I need just a way to drag and drop simple web controls and save the page.

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• Problem with PHP/AS3 - Display PHP query results back to flash via AS3

  - by Dale J

  Hi, Ive made a query in PHP, and i'm trying to send the results back into Flash via AS3, but its throwing up this error Error: Error #2101: The String passed to URLVariables.decode() must be a URL-encoded query string containing name/value pairs. at Error$/throwError() at flash.net::URLVariables/decode() at flash.net::URLVariables() at flash.net::URLLoader/onComplete() Here is the relevant part of the PHP and AS3 code, including the query. The flash variable rssAdd is passed over to the PHP which it using it in the PHP query accordingly. $url = $_POST['rssAdd']; $query= SELECT title FROM Feed WHERE category = (SELECT category FROM Feed WHERE url =$url) AND url!=$url; $result = mysql_query($query); echo $query; Here is the AS3 code I've done so far. function recommendation(){ var request:URLRequest = new URLRequest("url"); request.method = URLRequestMethod.POST var recVars:URLVariables = new URLVariables(); recVars.rssAdd=rssAdd; request.data = recVars var loader:URLLoader = new URLLoader(request); loader.addEventListener(Event.COMPLETE, onComplete); loader.dataFormat = URLLoaderDataFormat.TEXT; loader.load(request); function onComplete(event:Event):void{ recommend.text = event.target.data; } } Any help would be most appreciated, thanks.

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• MVC App Works in Visual Studio, but not IIS7

  - by kesh

  Working on a an ASP.NET MVC Project, and I'm having some difficulties deploying to a shared dev server. Locally, when debugging using the local Visual Studio 2008 server, everything works peachy. However, once deployed, I receive the following error: Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.## Heading ## Parser Error Message: Unable to find an entry point named 'BCryptGetFipsAlgorithmMode' in DLL 'bcrypt.dll'. Source Error: Line 1: <%@ Application Codebehind="Global.asax.cs" Inherits="APPLICATION_NAME.Web.MvcApplication" Language="C#" %> Source File: /APPLICATION_NAME/global.asax Line: 1 Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927 In the error log: Event sequence: 1 Event occurrence: 1 Event detail code: 0 Application information: Application domain: /LM/W3SVC/1/ROOT/APPLICATION_NAME-4-128995312096183595 Trust level: Full Application Virtual Path: /APPLICATION_NAME Application Path: E:\PROJECTS\APPLICATION\APPLICATION_NAME\APPLICATION_NAME\app\APPLICATION_NAME.Web\ Machine name: PC Process information: Process ID: 4608 Process name: w3wp.exe Account name: IIS APPPOOL\DefaultAppPool Exception information: Exception type: HttpException Exception message: Unable to find an entry point named 'BCryptGetFipsAlgorithmMode' in DLL 'bcrypt.dll'. Request information: Request URL: http://localhost/APPLICATION_NAME Request path: /APPLICATION_NAME User host address: ::1 User: Is authenticated: False Authentication Type: Thread account name: IIS APPPOOL\DefaultAppPool Thread information: Thread ID: 6 Thread account name: IIS APPPOOL\DefaultAppPool Is impersonating: False Stack trace: at System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() at System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) Custom event details: After finding the deployment error, I tried adding an application locally, and that seems to result in the same application. On my local dev machine, I'm using Windows 7 RTM (x64), and on the shared server I'm running Windows Server 2008 Standard (x86). Poked around, and my FIPS encryption in Local Security Policy is disabled, so I'm at a bit of a loss.

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• Using events in an external swf to load a new external swf

  - by wdense51

  Hi I'm trying to get an external swf to load when the flv content of another external swf finishes playing. I've only been using actiosncript 3 for about a week and I've got to this point from tutorials, so my knowledge is limited. This is what I've got so far: Code for External swf (with flv content): import fl.video.FLVPlayback; import fl.video.VideoEvent; motionClip.playPauseButton = player; motionClip.seekBar = seeker; motionClip.addEventListener(VideoEvent.COMPLETE, goNext); function goNext(e:VideoEvent):void { nextFrame(); } And this is the code for the main file: var Xpos:Number=110; var Ypos:Number=110; var swf_MC:MovieClip = new MovieClip(); var loader:Loader = new Loader(); var defaultSWF:URLRequest = new URLRequest("arch_reel.swf"); addChild (swf_MC); swf_MC.x=Xpos swf_MC.y=Ypos loader.load(defaultSWF); swf_MC.addChild(loader); //Btns Universal Function function btnClick(event:MouseEvent):void{ SoundMixer.stopAll(); swf_MC.removeChild(loader); var newSWFRequest:URLRequest = new URLRequest("motion.swf"); loader.load(newSWFRequest); swf_MC.addChild(loader); } function returnSWF(event:Event):void{ swf_MC.removeChild(loader); loader.load(defaultSWF); swf_MC.addChild(loader); } //Btn Listeners motion.addEventListener(MouseEvent.CLICK,btnClick); swf_MC.addEventListener(swf_MC.motionClip.Event.COMPLETE,swf_MC.motionClip.eventClip, returnSWF); I'm starting to get an understanding of how all of this works, but it's all to new to me at the moment, so I'm sure I've approached it from the wrong angle. Any help would be fantastic, as I've been trying at this for a few days now. Thanks

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• System Out Of Memory Exception in Production Server

  - by Sachin Gupta

  We have .net application installed on production server. It is using .net FrameWork 3.0 on windows server 2003 with RAM 4 GB. But there is a problem in application while running sometimes it throws system out of memory exception. I am very frustrating with this. Also I am unable to simulate the issue. I had checked all the possibilities which can cause the problem but didn’t get any thing which solve the issue I checked on production server event log found the Out Of Memory Exception also INVALID VIEW STATE logs are there. Look at the following event log which may help to find solutions. Exception information: Exception type: HttpException Exception message: Invalid viewstate. Request information: Request path: /zContest/ScriptResource.axd User: LisaA Is authenticated: True Authentication Type: Forms Thread information: Thread ID: 10 Is impersonating: True Stack trace: at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType) at System.Web.UI.Page.DecryptString(String s) at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString) at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader) at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context) at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) ------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Event code: 3005 Event message: An unhandled exception has occurred. Process information: Process ID: 5388 Process name: w3wp.exe Exception information: Exception type: OutOfMemoryException Exception message: Exception of type 'System.OutOfMemoryException' was thrown. ------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Please help me out on this

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• Jeditable Datepicker onblur problem

  - by Shobha Deepthi

  Hi, I am using inline editing using Jeditable and datepicker. I have a column in my table which displays Date as a hyperlink. When I click on this it shows me the datepicker. And when a particular date is selected its updated in the backend and the cell now is updated with the changed value. However, am having problem with onblur event while changing month or years. This event gets triggered when I click on "Prev" or "Next" buttons on the datepicker control. This causes an exception when the date is selected. This works fine as long as the date selected is in the current month. I tried all possible solutions listed here: stackoverflow.com/questions/2007205/jeditable-datepicker-causing-blur-when-changing-month If settimeout the control does not change back to a normal hyperlink on closing the datepicker or on a true onblur event. Here's my code, $.editable.addInputType('datepicker', { element : function(settings, original) { var input = $(''); if (settings.width != 'none') { input.width(settings.width); } if (settings.height != 'none') { input.height(settings.height); } input.attr('autocomplete','off'); $(this).append(input); return(input); }, plugin : function(settings, original) { var form = this; settings.onblur = function(e) { t = setTimeout(function() { original.reset.apply(form, [settings, self]); }, 100); }; $(this).find('input').datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd-M-y', closeAtTop: true, onSelect: function(dateText) { $(this).hide(); $(form).trigger('submit'); } }); }, submit : function(settings, original) { } }); $(function() { $('.edit_eta').editable('update_must_fix_eta.php', { id: 'bugid', name: 'eta', type: 'datepicker', event: 'click', select : true, width: '50px', onblur:'cancel', cssclass : 'editable', indicator : 'Updating ETA, please wait.', style : 'inherit', submitdata:{version:'4.2(4)',tag:'REL_4_2_4',qstr:1} }); }); I tried hacking jeditable.js as mentioned on this link: http://groups.google.com/group/jquery-dev/browse_thread/thread/265340ea692a2f47 Even this does not help. Any help is appreciated.

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• .NET Fingerprint SDK

  - by Kishore A

  I am looking for a comparison of Fingerprint reader SDKs available for .NET (we are using .Net 3.5). My requirements are 1. Associate more than one fingerprint with a person. 2. Store the fingerprints it self. (So I do not have to change the Database for my program.) 3. Work in both event and no-event mode. (Event Mode: Give notification if someone swipes a finger on the reader; No-Event mode: I activate the reader in synchronous mode). 4. Should provide API for either confirming a user or Identifying a user. (Confirm API: I send the person's ID/unique number and it confirms that it is the same person; Identifying API: The sdk sends the person's ID after it looks up the person using the fingerprint) I would also like to get a comparison of Fingerprint readers if anybody knows of one available on the internet. Hope I was clear. Thanks, Kishore.

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• How to upload images from iPhone app developed using Titanium

  - by Karthik.K

  Hi, I finally landed up in developing an iPhone app using Titanium Mobile. Now the problem I face is, Im able to run the app, and the app also sends the image to the server. But Im not able to see the file that got uploaded to the server. I have pasted the iPhone app's code to send image to the server and also, the PHP file that would receive the file from the app. var win = Titanium.UI.currentWindow; var ind=Titanium.UI.createProgressBar({ width:200, height:50, min:0, max:1, value:0, style:Titanium.UI.iPhone.ProgressBarStyle.PLAIN, top:10, message:'Uploading Image', font:{fontSize:12, fontWeight:'bold'}, color:'#888' }); win.add(ind); ind.show(); Titanium.Media.openPhotoGallery({ success:function(event) { Ti.API.info("success! event: " + JSON.stringify(event)); var image = event.media; var xhr = Titanium.Network.createHTTPClient(); xhr.onerror = function(e) { Ti.API.info('IN ERROR ' + e.error); }; xhr.onload = function() { Ti.API.info('IN ONLOAD ' + this.status + ' readyState ' + this.readyState); }; xhr.onsendstream = function(e) { ind.value = e.progress ; Ti.API.info('ONSENDSTREAM - PROGRESS: ' + e.progress+' '+this.status+' '+this.readyState); }; // open the client xhr.open('POST','http://www.myserver.com/tmp/upload2.php'); xhr.setRequestHeader("Connection", "close"); // send the data xhr.send({media:image}); }, cancel:function() { }, error:function(error) { }, allowImageEditing:true }); And here is the PHP code on the server: http://www.pastie.org/891050 I'm not sure where I'm going wrong. Please help me out in this issue. Would love to provide if you need some more information.

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• Problem with my whiteboard application

  - by swift

  I have to develop a whiteboard application in which both the local user and the remote user should be able to draw simultaneously, is this possible? If possible then any logic? I have already developed a code but in which i am not able to do this, when the remote user starts drawing the shape which i am drawing is being replaced by his shape and co-ordinates. This problem is only when both draw simultaneously. any idea guys? Here is my code class Paper extends JPanel implements MouseListener,MouseMotionListener,ActionListener { static BufferedImage image; int bpressed; Color color; Point start; Point end; Point mp; Button elipse=new Button("elipse"); Button rectangle=new Button("rect"); Button line=new Button("line"); Button empty=new Button(""); JButton save=new JButton("Save"); JButton erase=new JButton("Erase"); String selected; int ex,ey;//eraser DatagramSocket dataSocket; JButton button = new JButton("test"); Client client; Point p=new Point(); int w,h; public Paper(DatagramSocket dataSocket) { this.dataSocket=dataSocket; client=new Client(dataSocket); System.out.println("paper"); setBackground(Color.white); addMouseListener(this); addMouseMotionListener(this); color = Color.black; setBorder(BorderFactory.createLineBorder(Color.black)); //save.setPreferredSize(new Dimension(100,20)); save.setMaximumSize(new Dimension(75,27)); erase.setMaximumSize(new Dimension(75,27)); } public void paintComponent(Graphics g) { try { g.drawImage(image, 0, 0, this); Graphics2D g2 = (Graphics2D)g; g2.setPaint(Color.black); if(selected==("elipse")) g2.drawOval(start.x, start.y,(end.x-start.x),(end.y-start.y)); else if(selected==("rect")) g2.drawRect(start.x, start.y, (end.x-start.x),(end.y-start.y)); else if(selected==("line")) g2.drawLine(start.x,start.y,end.x,end.y); } catch(Exception e) {} } //Function to draw the shape on image public void draw() { Graphics2D g2 = image.createGraphics(); g2.setPaint(color); if(selected=="line") g2.drawLine(start.x, start.y, end.x, end.y); if(selected=="elipse") g2.drawOval(start.x, start.y, (end.x-start.x),(end.y-start.y)); if(selected=="rect") g2.drawRect(start.x, start.y, (end.x-start.x),(end.y-start.y)); repaint(); g2.dispose(); start=null; } //To add the point to the board which is broadcasted by the server public synchronized void addPoint(Point ps,String varname,String shape,String event) { try { if(end==null) end = new Point(); if(start==null) start = new Point(); if(shape.equals("elipse")) selected="elipse"; else if(shape.equals("line")) selected="line"; else if(shape.equals("rect")) selected="rect"; else if(shape.equals("erase")) { selected="erase"; erase(); } if(end!=null && start!=null) { if(varname.equals("end")) end=ps; if(varname.equals("mp")) mp=ps; if(varname.equals("start")) start=ps; if(event.equals("drag")) repaint(); else if(event.equals("release")) draw(); } } catch(Exception e) { e.printStackTrace(); } } //To set the size of the image public void setWidth(int x,int y) { System.out.println("("+x+","+y+")"); w=x; h=y; image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); Graphics2D g2 = image.createGraphics(); g2.setPaint(Color.white); g2.fillRect(0,0,w,h); g2.dispose(); } //Function which provides the erase functionality public void erase() { Graphics2D pic=(Graphics2D) image.getGraphics(); pic.setPaint(Color.white); pic.fillRect(start.x, start.y, 10, 10); } //Function to add buttons into the panel, calling this function returns a panel public JPanel addButtons() { JPanel buttonpanel=new JPanel(); JPanel row1=new JPanel(); JPanel row2=new JPanel(); JPanel row3=new JPanel(); JPanel row4=new JPanel(); buttonpanel.setPreferredSize(new Dimension(80,80)); //buttonpanel.setMinimumSize(new Dimension(150,150)); row1.setLayout(new BoxLayout(row1,BoxLayout.X_AXIS)); row1.setPreferredSize(new Dimension(150,150)); row2.setLayout(new BoxLayout(row2,BoxLayout.X_AXIS)); row3.setLayout(new BoxLayout(row3,BoxLayout.X_AXIS)); row4.setLayout(new BoxLayout(row4,BoxLayout.X_AXIS)); buttonpanel.setLayout(new BoxLayout(buttonpanel,BoxLayout.Y_AXIS)); elipse.addActionListener(this); rectangle.addActionListener(this); line.addActionListener( this); save.addActionListener( this); erase.addActionListener( this); buttonpanel.add(Box.createRigidArea(new Dimension(10,10))); row1.add(elipse); row1.add(Box.createRigidArea(new Dimension(5,0))); row1.add(rectangle); buttonpanel.add(row1); buttonpanel.add(Box.createRigidArea(new Dimension(10,10))); row2.add(line); row2.add(Box.createRigidArea(new Dimension(5,0))); row2.add(empty); buttonpanel.add(row2); buttonpanel.add(Box.createRigidArea(new Dimension(10,10))); row3.add(save); buttonpanel.add(row3); buttonpanel.add(Box.createRigidArea(new Dimension(10,10))); row4.add(erase); buttonpanel.add(row4); return buttonpanel; } //To save the image drawn public void save() { try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos); JFileChooser fc = new JFileChooser(); fc.showSaveDialog(this); encoder.encode(image); byte[] jpgData = bos.toByteArray(); FileOutputStream fos = new FileOutputStream(fc.getSelectedFile()+".jpeg"); fos.write(jpgData); fos.close(); //add replce confirmation here } catch (IOException e) { System.out.println(e); } } public void mouseClicked(MouseEvent arg0) { // TODO Auto-generated method stub } @Override public void mouseEntered(MouseEvent arg0) { } public void mouseExited(MouseEvent arg0) { // TODO Auto-generated method stub } public void mousePressed(MouseEvent e) { if(selected=="line"||selected=="erase") { start=e.getPoint(); client.broadcast(start,"start", selected,"press"); } else if(selected=="elipse"||selected=="rect") { mp = e.getPoint(); client.broadcast(mp,"mp", selected,"press"); } } public void mouseReleased(MouseEvent e) { if(start!=null) { if(selected=="line") { end=e.getPoint(); client.broadcast(end,"end", selected,"release"); } else if(selected=="elipse"||selected=="rect") { end.x = Math.max(mp.x,e.getX()); end.y = Math.max(mp.y,e.getY()); client.broadcast(end,"end", selected,"release"); } draw(); } //start=null; } public void mouseDragged(MouseEvent e) { if(end==null) end = new Point(); if(start==null) start = new Point(); if(selected=="line") { end=e.getPoint(); client.broadcast(end,"end", selected,"drag"); } else if(selected=="erase") { start=e.getPoint(); erase(); client.broadcast(start,"start", selected,"drag"); } else if(selected=="elipse"||selected=="rect") { start.x = Math.min(mp.x,e.getX()); start.y = Math.min(mp.y,e.getY()); end.x = Math.max(mp.x,e.getX()); end.y = Math.max(mp.y,e.getY()); client.broadcast(start,"start", selected,"drag"); client.broadcast(end,"end", selected,"drag"); } repaint(); } @Override public void mouseMoved(MouseEvent arg0) { // TODO Auto-generated method stub } public void actionPerformed(ActionEvent e) { if(e.getSource()==elipse) selected="elipse"; if(e.getSource()==line) selected="line"; if(e.getSource()==rectangle) selected="rect"; if(e.getSource()==save) save(); if(e.getSource()==erase) { selected="erase"; erase(); } } } class Button extends JButton { String name; public Button(String name) { this.name=name; Dimension buttonSize = new Dimension(35,35); setMaximumSize(buttonSize); } public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D)g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); //g2.setStroke(new BasicStroke(1.2f)); if (name == "line") g.drawLine(5,5,30,30); if (name == "elipse") g.drawOval(5,7,25,20); if (name== "rect") g.drawRect(5,5,25,23); } }

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• auto Focus (Hit Enter) Javascript function is working good in IE7 but not working in IE8

  - by James123

  Hi, I used a javascript FocusChange() in my aspx page. I have couple of controls and I need Hit enter key need to move next control based on tab index. It is working good in IE7 but not working in IE8... Please help me on this.. Thanks for your help in advance. The java script is given below. function FocusChange() { if (window.event.keyCode == 13) { var formLength = document.form1.length; // Get number of elements in the form var src = window.event.srcElement; // Gets the field having focus var currentTabIndex = src.getAttribute('tabindex'); // Gets its tabindex // scroll through all form elements and set focus in field having next tabindex for (var i = 0; i < formLength; i++) { if (document.form1.elements[i].getAttribute('tabindex') == currentTabIndex + 1) { for (var j = i; j <= formLength; j++) { if (document.form1.elements[j].disabled == false) { document.form1.elements[j].focus(); event.returnValue = false; event.cancel = true; return; } } } } } }

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• UIScrollView without paging but with touchesmoved

  - by BittenApple

  I have a UIScrollView that I use to display PDF pages in. I don't want to use paging (yet). I want to display content based on touchesmoved event (so after horizontal swipe). This works (sort of), but instead of catching a single swipe and showing 1 page, the swipe seems to gets broken into 100s of pieces and 1 swipe acts as if you're moving a slider! I have no clue what am I doing wrong. Here's the experimental "display next page" code which works on single taps: - (void)nacrtajNovuStranicu:(CGContextRef)myContext { CGContextTranslateCTM(myContext, 0.0, self.bounds.size.height); CGContextScaleCTM(myContext, 1.0, -1.0); CGContextSetRGBFillColor(myContext, 255, 255, 255, 1); CGContextFillRect(myContext, CGRectMake(0, 0, 320, 412)); size_t brojStranica = CGPDFDocumentGetNumberOfPages(pdfFajl); if(pageNumber < brojStranica){ pageNumber ++; } else{ // kraj PDF fajla, ne listaj dalje. } CGPDFPageRef page = CGPDFDocumentGetPage(pdfFajl, pageNumber); CGContextSaveGState(myContext); CGAffineTransform pdfTransform = CGPDFPageGetDrawingTransform(page, kCGPDFCropBox, self.bounds, 0, true); CGContextConcatCTM(myContext, pdfTransform); CGContextDrawPDFPage(myContext, page); CGContextRestoreGState(myContext); //osvjezi displej [self setNeedsDisplay]; } Here's the swiping code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesBegan:touches withEvent:event]; UITouch *touch = [touches anyObject]; gestureStartPoint = [touch locationInView:self]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint currentPosition = [touch locationInView:self]; CGFloat deltaX = fabsf(gestureStartPoint.x - currentPosition.x); CGFloat deltaY = fabsf(gestureStartPoint.y - currentPosition.y); if (deltaX >= kMinimumGestureLength && deltaY <= kMaximumVariance) { [self nacrtajNovuStranicu:(CGContextRef)UIGraphicsGetCurrentContext()]; } } The code sits in UIView which displays the PDF content, perhaps I should place it into UIScrollView or is the "display next page" code wrong?

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• Flex: How to refresh/repaint a chart?

  - by Rob

  I have a chart for which the data is provided asynchronously via a CallResponder (used with a RemoteObject). However, it does not seem possible to update the chart with the data after it has been initially drawn. Here are the relevant snippets of (simplified) code: // code below is in the application MXML <mx:CallResponder id="result" result="resultHandler(event)" /> private function resultHandler(event:ResultEvent):void { // panel is an instance of ChartPanel this.panel.init(event.result); } // invoked when user clicks a button private function displayChart():void { this.currentState = "ShowChart"; result.token = remoteObject.getUrlStatistics(); } // code below is in ChartPanel <mx:BarChart id="chart" /> public function init(value:Object):void { var xml:XMLList = XMLList(value); var data:ArrayCollection = new ArrayCollection(); for each (var element:XML in xml.children()) { // not shown: extract value out of XML, put in ArrayList data.addItem(...); } this.chart.dataProvider = data; } The result is that it draws an empty chart. the resultHandler function or init function in ChartPanel needs to trigger a repaint or something similar. I have tried: Firing a collection modified event after assigning it to chart.dataProvider calling invalidateDisplayList (tried with all components) binding the chart data provider to a variable, and doing the above. changing the view state on the last line of resultHandler. None of them worked. When I fetch the data and cache it locally, then use it to call init synchronously, the chart displays correctly. What am I missing here?

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• Move multiple BufferedImage in Java2D?

  - by zo0mbie

  How can I mousedrag different BufferedImages in Java2D? For instance, if I have ten or more images, how can I move that images which my mouse is over? Now I'm importing an BufferedImage with BufferedImage img = new BufferdImage(new File("filename")); And I'm painting this with Graphics2D with public void paintComponent(Graphics g) { super.paintComponent(g); g2d = (Graphics2D) g; g2d.drawImage(img, x1, y1, null); g2d.drawImage(img2, x2, y2,null); } Everytime I'm moving on a image I'm repaint()-ing the entire screen. My mousemove class is as follows class MouseMotionHandler extends MouseMotionAdapter { @Override public void mouseDragged(MouseEvent e) { x1 = e.getX() - (img.getWidth() / 2); y1 = e.getY() - (img.getHeight() / 2); repaint(); } } With this method I'm able to "drag" one picture, but what to do when I will drag more individually?

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• [jQuery] [PHP] Image manipulation

  - by robertdd

  hello, I want to do some kind of image editor, after I upload more images i want to make a list with all the thumbnails! after i want to be able to click on one thumb and rotate, duplicate, drag and drop (to change positions of the images), delete the image! all the images i want to be in a php array, if a image is deleted i want to delete the row from array to, if a image is drag and droped i want to change the position in the array to! ok after the user upload all the images and modify some of it how i can make a DONE button to save the positions of the images? for this small project how u suggest me to save the images? (to make a table in mysql and store the names of the images in the database depending on the session id? depending on the IP? any suggestions are welcome! thanks!

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• How to get contacts in order of they upcoming birthdays?

  - by Pentium10

  I have code to read contacts details and to read birthday. But how do I get a list of contacts in order of they upcoming birthday? For a single contact identified by id I get details and birthday like this. Cursor c = null; try { Uri uri = ContentUris.withAppendedId( ContactsContract.Contacts.CONTENT_URI, id); c = ctx.getContentResolver().query(uri, null, null, null, null); if (c != null) { if (c.moveToFirst()) { DatabaseUtils.cursorRowToContentValues(c, data); } } c.close(); // read birthday c = ctx.getContentResolver() .query( Data.CONTENT_URI, new String[] { Event.DATA }, Data.CONTACT_ID + "=" + id + " AND " + Data.MIMETYPE + "= '" + Event.CONTENT_ITEM_TYPE + "' AND " + Event.TYPE + "=" + Event.TYPE_BIRTHDAY, null, Data.DISPLAY_NAME); if (c != null) { try { if (c.moveToFirst()) { this.setBirthday(c.getString(0)); } } finally { c.close(); } } return super.load(id); } catch (Exception e) { Log.v(TAG(), e.getMessage(), e); e.printStackTrace(); return false; } finally { if (c != null) c.close(); }

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• How to get contacts in order of their upcoming birthdays?

  - by Pentium10

  I have code to read contact details and to read birthdays. But how do I get a list of contacts in order of their upcoming birthday? For a single contact identified by id, I get details and birthday like this: Cursor c = null; try { Uri uri = ContentUris.withAppendedId( ContactsContract.Contacts.CONTENT_URI, id); c = ctx.getContentResolver().query(uri, null, null, null, null); if (c != null) { if (c.moveToFirst()) { DatabaseUtils.cursorRowToContentValues(c, data); } } c.close(); // read birthday c = ctx.getContentResolver() .query( Data.CONTENT_URI, new String[] { Event.DATA }, Data.CONTACT_ID + "=" + id + " AND " + Data.MIMETYPE + "= '" + Event.CONTENT_ITEM_TYPE + "' AND " + Event.TYPE + "=" + Event.TYPE_BIRTHDAY, null, Data.DISPLAY_NAME); if (c != null) { try { if (c.moveToFirst()) { this.setBirthday(c.getString(0)); } } finally { c.close(); } } return super.load(id); } catch (Exception e) { Log.v(TAG(), e.getMessage(), e); e.printStackTrace(); return false; } finally { if (c != null) c.close(); } and the code to read all contacts is: public Cursor getList() { // Get the base URI for the People table in the Contacts content // provider. Uri contacts = ContactsContract.Contacts.CONTENT_URI; // Make the query. ContentResolver cr = ctx.getContentResolver(); // Form an array specifying which columns to return. String[] projection = new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME }; Cursor managedCursor = cr.query(contacts, projection, null, null, ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC"); return managedCursor; }

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• Photo gallery not open in titanium 1.0

  - by user291247

  Hello, I am developing new app. using titanium 1.0 In that I am opening phtogallery in new window but I am not able to open it why this was happened? Code to open photogallery in app.js Titanium.App.addEventListener('recordvideo', function(e) { win1.close(); var w = Titanium.UI.createWindow({ backgroundColor:'#336699', title:'Modal Window', barColor:'black', url:'xhr_testfileupload.js' }); w.open({animated:true}); }); xhr_testfileupload.js code: var win = Titanium.UI.currentWindow; var ind=Titanium.UI.createProgressBar({ width:200, height:50, min:0, max:1, value:0, style:Titanium.UI.iPhone.ProgressBarStyle.PLAIN, top:10, message:'Uploading Image', font:{fontSize:12, fontWeight:'bold'}, color:'#888' }); win.add(ind); ind.show(); Titanium.Media.openPhotoGallery({ success:function(event) { Ti.API.info("success! event: " + JSON.stringify(event)); var image = event.media; var xhr = Titanium.Network.createHTTPClient(); xhr.onerror = function(e) { Ti.API.info('IN ERROR ' + e.error); }; xhr.onload = function() { Ti.API.info('IN ONLOAD ' + this.status + ' readyState ' + this.readyState); }; xhr.onsendstream = function(e) { ind.value = e.progress ; Ti.API.info('ONSENDSTREAM - PROGRESS: ' + e.progress); } // open the client xhr.open('POST','https://twitpic.com/api/uploadAndPost'); // send the data xhr.send({media:image,username:'fgsandford1000',password:'sanford1000',message:'check me out'}); }, cancel:function() { }, error:function(error) { }, allowImageEditing:true, });

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