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  • Build and test on 2.2.1 iPod Touch with XCode 3.2.2?

    - by slewis
    I've just installed Xcode 3.2.2 with iPhone SDK 3.2 Beta 5 (Snow Leopard) This version of Xcode didn't come with any iPhone SDKs older than 3.0. But I want to create an app that runs on all devices from iPhone OS 2.2.1 - 3.1.3. I managed to add older SDKs into Xcode by downloading iPhone 3.1.3 with Xcode 3.1.4 and installing each 2.x SDK from the 'Packages' folder in the .dmg. So now I can select 2.2.1 as 'iPhone OS Deployment Target' and the 'Base SDK' as 3.1.3, and the app will build (thus letting me use 3.1.3 APIs with conditional coding whilst still running on 2.2.1 devices). But the problem is the app will not install and run on my 2.2.1 iPod Touch. Instead, Xcode tells me 'No provisioned iPhone OS device is connected'. If I bring up the Organizer, in the left column, the iPod Touch has an orange sphere next to it, instead of green, and clicking on this reveals: 'The version of iPhone OS on “iPod touch” is too old for use with this version of the iPhone SDK. Please restore the device to a version of the OS listed below' I'm not sure how to get this version of the SDK to support 2.2.1. (It needs to be this download of XCode/iPhone SDK because I also want it to be a universal binary so it runs on the iPad with a minimum of fuss).

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  • Kindle Fire Cant Fit My Webpage inside a Webview of specific size

    - by Madhavan Rangarao
    This is baffling to me. Please help, I could not figure it out ... In my sample html file I have set the meta tag to be <meta name="viewport" content="target-densitydpi=device-dpi, user-scalable=no"> to fit the webpage inside my webview of custom size say 800x600. In Android, I had to specify "target-densitydpi=device-dpi" and it did the job nicely. I tested my custom web page with nexus 7 tablet and the web page fits inside my web view correctly. The same code does not work in Kindle Fire. Only a part of my web page is shown and even if I set the 'initial-scale=1.0' did not help. I tried various settings programmatically but it did not help either. webview.getSettings().setBuiltInZoomControls(true); webview.getSettings().setSupportZoom(true); webview.getSettings().setLoadWithOverviewMode(true); webview.setInitialScale(1); webview.getSettings().setUseWideViewPort(true); Any pointers?

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  • Enumerating pixel formats for adaptors and modes with OpenGL

    - by Robinson
    I'm trying to code an OpenGL path for my 3D engine. The D3D path enumerates all device adaptors, all modes (by mode I mean bit depth, dimensions, available windowed, and refresh rate) for each adaptor and then all pixel formats available for the given mode and adaptor, along side certain useful caps (shader version, filter types, etc.). So, I have broadly got the following protected functions in the class: // Enumerate all back/front buffer combinations. virtual void EnumerateBackFrontBufferCombinations(CComPtr<IDirect3D9>& d3d9); // Enumerate all depth/stencil formats. virtual void EnumerateDepthStencilFormats(CComPtr<IDirect3D9>& d3d9); // Enumerate all multi-sample formats. virtual void EnumerateMultiSampleTypes(CComPtr<IDirect3D9>& d3d9); // Enumerate all device formats, i.e. dynamic, static, render target, etc. virtual void EnumerateMapFormats(CComPtr<IDirect3D9>& d3d9); // Enumerate all capabilities. virtual void EnumerateCapabilities(CComPtr<IDirect3D9>& d3d9); The adaptors are enumerated with EnumDisplayDevices, the modes (resolutions and refresh rates) are enumerated with EnumDisplaySettings, so this can be done for either GL or D3D. The other functions I'm not so sure about with OpenGL. What are the equivalents to the IDirect3D9's CheckDeviceType, CheckDeviceFormat, CheckDeviceMultiSampleType, CheckDepthStencilMatch? I know I can use DescribePixelFormat, given a DC, but you kind-of need to have created the window before you can use a DC with it, but you can't create the window correctly until you know what formats you're going to use. Any tips you can give me? Thanks.

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  • How can I set a Java applet transparency to show contents behind it?

    - by yuri
    I've got a web page with an applet inside. This applet is a drop target on a drag and drop action from the OS, I simply take an image from a folder, drag it on the applet and something happens. I give this webpage to a graphic designer and he ask to if he can put an image behind the java applet so he can simulate to change the background using CSS (it is a skinned app and graphic design can change during execution). Practically i supposed to do: <div> <applet width="50" height="50" /> </div> with this CSS: div { width:50px; height:50px; background-image: url(image.jpg) center center no-repeat; } But it doesn't work (background is opaque). It is possible to set transparency to the applet without loosing drag and drop capabilities ? I'm searching something similar to flash wmode parameter. Better solutions implies only changes on the CSS/HTML without recompiling java class so the designing team can change the page structure without changing the Java.

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  • 3D Animation Rotating and Translating simultaneously in WPF

    - by sklitzz
    Hi, I have ModelVisual3D of a cube. I want to translate and rotate it at the same time. I wish the center of rotation to be in the middle of the cube(the cube rotates around its own axis). But when I try to do this applying both transformations the effect is not what you would expect. Since the object is translating the center of rotation is different thus making it move and rotate in a strange way. How do I get the desired effect? Transform3DGroup transGroup = new Transform3DGroup(); DoubleAnimation cardAnimation = new DoubleAnimation(); cardAnimation.From = 0; cardAnimation.To = 3; cardAnimation.Duration = new Duration(TimeSpan.FromSeconds(2)); Transform3D transform = new TranslateTransform3D(0,0,0); transGroup.Children.Add(transform); RotateTransform3D rotateTransform = new RotateTransform3D(); AxisAngleRotation3D rotateAxis = new AxisAngleRotation3D(new Vector3D(0, 1, 0), 180); Rotation3DAnimation rotateAnimation = new Rotation3DAnimation(rotateAxis, TimeSpan.FromSeconds(2)); rotateAnimation.DecelerationRatio = 0.8; transGroup.Children.Add(rotateTransform); Model.Transform = transGroup; transform.BeginAnimation(TranslateTransform3D.OffsetXProperty, cardAnimation); rotateTransform.BeginAnimation(RotateTransform3D.RotationProperty, rotateAnimation);

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  • Fill parent container

    - by manix
    After several hours of design battle I come to you for a hand. I am building a website for a night club as you can see. I can't get stretch the centered area (bordered by yellow color) to the bottom of the page where the footer start (the footer is the green top-bordered div). This happends because the content is not enought to fill the rest of heigh. This is my css html, body{ height: 100%; margin: 0 auto; } #container{ height: auto !important; height: 100%; margin: 0 auto -50px; /* as #footer height */ min-height: 100%; text-align: center; border: 5px solid blue; } #centered-container{ width: 950px; margin: 0 auto; text-align: left; border: 5px solid yellow; } #body-container{ border: 5px solid red; } #footer, .footer{ height: 50px; } #footer{ text-align: center; border-top: 5px solid green; } And this is my html markup <body> <div id="container"> <!-- BLUE BORDER --> <div id="centered-container"> <!-- YELLOW BORDER --> <div id="body-container"> <!-- RED BORDER --> </div> </div> <div class="footer"></div> <!-- GREEN BORDER --> </div> <div id="footer"></div> </body> Expected behaviour: Additional facts - The colored borders is just for debugging porpuses

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  • Jquery change text ajax request problem

    - by blasteralfred
    Hi, I have an html file as coded below. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style> .style1 { background-color: #c3d9ff; font-family:arial,sans-serif; } .style2 { text-align: center; font-weight: bold; } .style3 { background-color: #FFFFFF; font-family:arial,sans-serif; text-align: center; font-weight: bold; } .style4 { background-color: #FFFFFF; font-family:arial,sans-serif; text-align: left; } body { font-family:Verdana, Arial, Helvetica, sans-serif; font-size:15px; background-color: ; } .action_button { font-weight:bold; float:right; } </style> <script type="text/javascript" src="jquery-1.4.4.min.js"></script> <script type="text/javascript">$(function() { $('.action_button').click(function() { var $button = $(this); $.ajax({ type: 'POST', url: 'action.php', data: 'id='+ $(this).attr('id'), cache: false, success: function(result) { var $row = $button.closest('tr'); var $col = $row.find('.clickme2'); $row.fadeOut('fast', function() { if (result == 'ACTIVATED') { $button.text('Activate'); $col.text('Active'); } else if (result == 'INACTIVATED') { $button.text('Inactivate'); $col.text('Inactive'); } }).fadeIn(); } }); return false; }); }); </script> </head> <body> <table style="width: 90%" align="center" class="style1"> <tr> <td colspan="7" class="style2">MANAGER</td> </tr> <tr> <td class="style3" style="width: 139px">Col1</td> <td class="style3" style="width: 139px">Col2</td> <td class="style3" style="width: 139px">Col3</td> <td class="style3" style="width: 139px">Col4</td> <td class="style3" style="width: 139px">Col5</td> <td class="style3" style="width: 200px">Col6</td> <td class="style3" style="">Action</td> </tr> </table> <td id="main" class="main"> <td class="update"> <table style="width: 90%" align="center" class="style1"> <tr> <td class="style4" style="width: 139px">DataA1</td> <td class="style4" style="width: 139px">DataA2</td> <td class="style4" style="width: 139px">DataA3</td> <td class="style4" style="width: 139px">DataA4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataA6</td> <td> <button href="#" id="DataA1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataB1</td> <td class="style4" style="width: 139px">DataB2</td> <td class="style4" style="width: 139px">DataB3</td> <td class="style4" style="width: 139px">DataB4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataB6</td> <td> <button href="#" id="DataB1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataC1</td> <td class="style4" style="width: 139px">DataC2</td> <td class="style4" style="width: 139px">DataC3</td> <td class="style4" style="width: 139px">DataC4</td> <td class="style4 clickme2" style="width: 139px">Active</td> <td class="style4" style="width: 200px">DataC6</td> <td> <button href="#" id="DataC1" class="action_button" style="width:80px;height:"> Inactivate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataD1</td> <td class="style4" style="width: 139px">DataD2</td> <td class="style4" style="width: 139px">DataD3</td> <td class="style4" style="width: 139px">DataD4</td> <td class="style4 clickme2" style="width: 139px">Active</td> <td class="style4" style="width: 200px">DataD6</td> <td> <button href="#" id="DataD1" class="action_button" style="width:80px;height:"> Inactivate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataE1</td> <td class="style4" style="width: 139px">DataE2</td> <td class="style4" style="width: 139px">DataE3</td> <td class="style4" style="width: 139px">DataE4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataE6</td> <td> <button href="#" id="DataE1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> </table> </td> </td> </body> </html> The fage contain a table with 5 rows with a button at the end of the row. On click, the button submits data to a php file and then changes text and blurs according to the response from php file. The blur function and change text function in col5 is working well. But the change text function in button got really buggy. The button text should change accordingly. the text of button "Activate" should change to "Inactivate" and the text of button "Inactivate" should change to "Activate" on click / successful submission.. This is not working.. Below is the php file code <?php $id = $_POST[id]; if($id=="DataA1"){ echo "ACTIVATED"; } if($id=="DataB1"){ echo "ACTIVATED"; } if($id=="DataE1"){ echo "ACTIVATED"; } if($id=="DataC1"){ echo "INACTIVATED"; } if($id=="DataD1"){ echo "INACTIVATED"; } ?> Thanks in advance.. :) blasteralfred

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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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  • How to change button background color depending on bound command canexecute ??

    - by LaurentH
    Hi, I Have a ItemTemplate in which is a simple button bound on a command, which can be executable or not depending on some property. I'd like the color of this button's background to change if the command isn't executable. I tried several methods, but I can't find anyway to do this purely in XAML (I'm doing this in a study context, and code behind isn't allowed). Here's my code for the button : <Button x:Name="Dispo" HorizontalAlignment="Center" Margin="0" VerticalAlignment="Center" Width="30" Height="30" Grid.Column="2" Grid.Row="0" Command="{Binding AddEmpruntCommandModel.Command}" CommandParameter="{Binding ElementName='flowCars', Path='SelectedItem'}" vm:CreateCommandBinding.Command="{Binding AddEmpruntCommandModel}" > <Button.Style> <Style TargetType="{x:Type Button}"> <Style.Triggers> <Trigger Property="IsEnabled" Value="True"> <Setter Property="Button.Background" Value="Green"/> </Trigger> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Button.Background" Value="Red"/> </Trigger> </Style.Triggers> </Style> </Button.Style> </Button>

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  • A feeling that I'm not that good developer

    - by Karim
    Hi, Im having a strange feeling, but let me first introduce myself as a software developer. I started to program when I was still a kid, I had about 10 or 11 years. I really enjoy my work and never get bored from it. It's amazing how somebody could be paid for what he really likes to do and would be doing it anyway even for free. WHen I first started to program, I was feeling proud of what I was doing, each application I built was for me a success and after 2-3 year I had a feeling that I'm a coding guru. It was a nice feeling ;-) But the more I was in the field, the more types of software I started to develop I was starting to have a feeling that I'm completely wrong in that I'm guru. I felt that I'm not even a mediocre developer. Each new field I start to work on is giving me this feeling. Like when I once developed a device driver for a client, I saw how much I need to learn about device drivers. When I developed a video filter for an application, I saw how much do I still need to learn about DirectShow, Color Spaces, and all the theory behind that. The worst thing was when I started to learn algorithms. It was several years ago. I knew then the basic structures and algorithms like the sorting, some types of trees, some hashtables, strings etc.. and when I really wanted to learn a group of structures I learned about 5-6 new types and saw that in fact even this small group has several hundred subtypes of structures. It's depressing how little time people have in their lives to learn all this stuff. I'm now a software developer with about 10 years of experience and I still feel that I'm not a proficient developer when I think about things that others do in the industry. Is this normal what I'm experiencing or is it a sign of a destructive excessive ambition? Thanks in advance for any comments.

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  • wxPython - ListCrtl and SQLite3

    - by Dunwitch
    I'm trying to get a SQLite3 DB to populate a wx.ListCrtl. I can get it to print to stdout/stderr without any problem. I just can't seem to figure out how to display the data in the DataWindow/DataList? I'm sure I've made some code mistakes, so any help is appreciated. Main.py import wx import wx.lib.mixins.listctrl as listmix from database import * import sys class DataWindow(wx.Frame): def __init__(self, parent = None): wx.Frame.__init__(self, parent, -1, 'DataList', size=(640,480)) self.win = DataList(self) self.Center() self.Show(True) class DataList(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin, listmix.ColumnSorterMixin): def __init__(self, parent = DataWindow): wx.ListCtrl.__init__( self, parent, -1, style=wx.LC_REPORT|wx.LC_VIRTUAL|wx.LC_HRULES|wx.LC_VRULES) #building the columns self.InsertColumn(0, "Location") self.InsertColumn(1, "Address") self.InsertColumn(2, "Subnet") self.InsertColumn(3, "Gateway") self.SetColumnWidth(0, 100) self.SetColumnWidth(1, 150) self.SetColumnWidth(2, 150) self.SetColumnWidth(3, 150) class MainWindow(wx.Frame): def __init__(self, parent = None, id = -1, title = "MainWindow"): wx.Frame.__init__(self, parent, id, title, size = (800,600), style = wx.DEFAULT_FRAME_STYLE ^ (wx.RESIZE_BORDER)) # StatusBar self.CreateStatusBar() # Filemenu filemenu = wx.Menu() # Filemenu - About menuitem = filemenu.Append(-1, "&About", "Information about this application") self.Bind(wx.EVT_MENU, self.onAbout, menuitem) #Filemenu - Data menuitem = filemenu.Append(-1, "&Data", "Get data") self.Bind(wx.EVT_MENU, self.onData, menuitem) # Filemenu - Seperator filemenu.AppendSeparator() #Filemenu - Exit menuitem = filemenu.Append(-1, "&Exit", "Exit the application") self.Bind(wx.EVT_MENU, self.onExit, menuitem) # Menubar menubar = wx.MenuBar() menubar.Append(filemenu, "&File") self.SetMenuBar(menubar) # Show self.Show(True) self.Center() def onAbout(self, event): pass def onData(self, event): DataWindow(self) callDb = Database() sql = "SELECT rowid, address, subnet, gateway FROM pod1" records = callDb.select(sql) for v in records: print "How do I get the records on the DataList?" #print "%s%s%s" % (v[1],v[2],v[3]) #for v in records: #DataList.InsertStringItem("%s") % (v[0], v[1], v[2]) def onExit(self, event): self.Close() self.Destroy() def onSave(self, event): pass if __name__ == '__main__': app = wx.App() frame = MainWindow(None, -1) frame.Show() app.MainLoop() database.py import os import sqlite3 class Database(object): def __init__(self, db_file="data/data.sqlite"): database_allready_exists = os.path.exists(db_file) self.db = sqlite3.connect(db_file) if not database_allready_exists: self.setupDefaultData() def select(self,sql): cursor = self.db.cursor() cursor.execute(sql) records = cursor.fetchall() cursor.close return records def insert(self,sql): newID = 0 cursor = self.db.cursor() cursor.execute(sql) newID = cursor.lastrowid self.db.commit() cursor.close() return newID def save(self,sql): cursor = self.db.cursor() cursor.execute(sql) self.db.commit() cursor.close() def setupDefaultData(self): pass

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  • TicTacToe strategic reduction

    - by NickLarsen
    I decided to write a small program that solves TicTacToe in order to try out the effect of some pruning techniques on a trivial game. The full game tree using minimax to solve it only ends up with 549,946 possible games. With alpha-beta pruning, the number of states required to evaluate was reduced to 18,297. Then I applied a transposition table that brings the number down to 2,592. Now I want to see how low that number can go. The next enhancement I want to apply is a strategic reduction. The basic idea is to combine states that have equivalent strategic value. For instance, on the first move, if X plays first, there is nothing strategically different (assuming your opponent plays optimally) about choosing one corner instead of another. In the same situation, the same is true of the center of the walls of the board, and the center is also significant. By reducing to significant states only, you end up with only 3 states for evaluation on the first move instead of 9. This technique should be very useful since it prunes states near the top of the game tree. This idea came from the GameShrink method created by a group at CMU, only I am trying to avoid writing the general form, and just doing what is needed to apply the technique to TicTacToe. In order to achieve this, I modified my hash function (for the transposition table) to enumerate all strategically equivalent positions (using rotation and flipping functions), and to only return the lowest of the values for each board. Unfortunately now my program thinks X can force a win in 5 moves from an empty board when going first. After a long debugging session, it became apparent to me the program was always returning the move for the lowest strategically significant move (I store the last move in the transposition table as part of my state). Is there a better way I can go about adding this feature, or a simple method for determining the correct move applicable to the current situation with what I have already done?

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  • WPF Empty Row in ItemsControl Binding with ObservableCollection

    - by YoMo
    I have ItemsControl Binding with ObservableCollection, every think is oky excipt when ObservableCollection was empty the ItemsControl showing one empty row !! <ItemsControl Visibility="Visible" ItemsSource="{Binding ocItemsinInvoice,Mode=TwoWay}" x:Name="test" Margin="10,-32,0,207" Width="412" HorizontalAlignment="Left"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <UniformGrid Columns="1" VerticalAlignment="Top" /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemTemplate> <DataTemplate> <Button x:Name="btnOpenInvoice" Style="{StaticResource OpenInvoicesButton}" FontSize="12" Width="300" Height="60" Foreground="#ff252526"> <StackPanel Orientation="Vertical"> <TextBlock Text="{Binding Item.ItemName}" HorizontalAlignment="Center" VerticalAlignment="Center" /> </StackPanel> </Button> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> How can I remove it?

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  • How to check whether a CGPoint is inside a UIImageView?

    - by Horace Ho
    In touchesBegan: CGPoint touch_point = [[touches anyObject] locationInView:self.view]; There are tens of UIImageView around, stored in a NSMutableArray images. I'd like to know is there a built-in function to check if a CGPoint (touch_point) is inside one of the images, e.g.: for (UIImageView *image in images) { // how to test if touch_point is tapped on a image? } Thanks Follow up: For unknown reason, pointInside never returns true. Here is the full code. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; touch_point = [touch locationInView:self.view]; for (UIImageView *image in piece_images) { if ([image pointInside:touch_point withEvent:event]) { image.hidden = YES; } else { image.hidden = NO; } NSLog(@"image %.0f %.0f touch %.0f %.0f", image.center.x, image.center.y, touch_point.x, touch_point.y); } } although I can the two points are sometimes identical in the NSLog output ... I also tried: if ([image pointInside:touch_point withEvent:nil]) the result is the same. never returns a true. To eliminate the chance of anything goes with with the images. I tried the following: if (YES or [image pointInside:touch_point withEvent:event]) all images are hidden ater the first click on screen.

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  • Basic question on retain/release semantics from Apple's reference library

    - by davetron5000
    I have done Objective-C way back when, and have recently (i.e. just now) read the documentation on Apple's site regarding the use of retain and release. However, there is a bit of code in their Creating an iPhone Application page that has me a bit confused: - (void)setUpPlacardView { // Create the placard view -- it calculates its own frame based on its image. PlacardView *aPlacardView = [[PlacardView alloc] init]; self.placardView = aPlacardView; [aPlacardView release]; // What effect does this have on self.placardView?! placardView.center = self.center; [self addSubview:placardView]; } Not seeing the entire class, it seems that self.placardView is also a PlacardView * and the assignment of it to aPlacardView doesn't seem to indicate it will retain a reference to it. So, it appears to me that the line I've commented ([aPlacardView release];) could result in aPlacardView having a retain count of 0 and thus being deallocated. Since self.placardView points to it, wouldn't that now point at deallocated memory and cause a problem?

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  • Extend and Overload MS and Point Types

    - by dr d b karron
    Do I have make my own Point and Vector types to overload them ? Why does this not work ? namespace System . windows { public partial struct Point : IFormattable { public static Point operator * ( Point P , double D ) { Point Po = new Point ( ); return Po; } } } namespace SilverlightApplication36 { public partial class MainPage : UserControl { public static void ShrinkingRectangle ( WriteableBitmap wBM , int x1 , int y1 , int x2 , int y2 , Color C ) { wBM . DrawRectangle ( x1 , y1 , x2 , y2 , Colors . Red ); Point Center = Mean ( x1 , y1 , x2 , y2 ); wBM . SetPixel ( Center , Colors.Blue , 3 ); Point P1 = new Point ( x1 , y1 ); Point P2 = new Point ( x1 , y2 ); Point P3 = new Point ( x1 , y2 ); Point P4 = new Point ( x2 , y1 ); const int Steps = 10; for ( int i = 0 ; i < Steps ; i++ ) { double iF = (double)(i+1) / (double)Steps; double jF = ( 1.0 - iF ); Point P11 = **P1 * jF;** } }

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  • Firefox adding padding to first image in multiple images, although all images have same styling and size.

    - by Sam Gabriel
    Hey guys, I have this piece of code: while($uno=mysql_fetch_assoc($results)) { echo '<div class="wcapt"><a class="neutral" href="../images.php?id=' . $uno['id'] . '"><img class="pad" src="'. $uno['thumbs'].'" border="0" /></a><br/><center><p>'.$uno['name'].'</p></center></div>'; } And all the images I link to have exactly the same size. Here's the Mainstyles.css div.wcapt { border: 1px solid green; float: left; padding: 0; margin: 3px; font: 11px/1.4em Arial, sans-serif; color: gray; } img.pad { padding: 5px; } a.neutral { display: inline; font-weight: normal; text-transform: none; background-color: transparent; color: white; text-decoration: none; } The problem is that Firefox adds some extra padding to the first image, and only the first image. And this is really annoying. Here's a screenshot of the page:

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  • Force windows video driver reload. Is it possible at all?

    - by somemorebytes
    Hi there, Some drivers use parameters written in the registry to configure themselves when they get loaded at boot time. I can modify those values and then reboot, but I would like to know if it is possible to force the driver reload, making the changes effective without rebooting. Specifically, I am talking about the video driver (nvidia). I read somewhere, that calling through pINvoke() [User32.ll]::ChangeDisplaySettings() with a 640x480x8bits resolution,(which is so low that it should not be supported by a modern driver) will force windows to load the "Standard VGA driver", and making another call with the current resolution will load the nvidia driver again. This does not work though. At least in Windows 7, even if the low res is not displayed as "supported" the system reduces the screen to a little square in the center of the screen, showing the low res wihtout unloading the nvidia driver. So, is there any .NET/Win32 API, service to restart, or any way at all to force a video driver reload? Perhaps programatically disabling the device (as you could do from the Device Manager) and reenabling it again? Any idea? Thanks a lot.

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  • Memory efficient collection class

    - by Joe
    I'm building an array of dictionaries (called keys) in my iphone application to hold the section names and row counts for a tableview. the code looks like this: [self.results removeAllObjects]; [self.keys removeAllObjects]; NSUInteger i,j = 0; NSString *key = [NSString string]; NSString *prevKey = [NSString string]; if ([self.allResults count] > 0) { prevKey = [NSString stringWithString:[[[self.allResults objectAtIndex:0] valueForKey:@"name"] substringToIndex:1]]; for (NSDictionary *theDict in self.allResults) { key = [NSString stringWithString:[[theDict valueForKey:@"name"] substringToIndex:1]]; if (![key isEqualToString:prevKey]) { NSDictionary *newDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:i],@"count", prevKey,@"section", [NSNumber numberWithInt:j], @"total",nil]; [self.keys addObject:newDictionary]; prevKey = [NSString stringWithString:key]; i = 1; } else { i++; } j++; } NSDictionary *newDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:i],@"count", prevKey,@"section", [NSNumber numberWithInt:j], @"total",nil]; [self.keys addObject:newDictionary]; } [self.tableview reloadData]; The code works fine first time through but I sometimes have to rebuild the entire table so I redo this code which orks fine on the simulator, but on my device the program bombs when I execute the reloadData line : malloc: *** mmap(size=3772944384) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug malloc: *** mmap(size=3772944384) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug Program received signal: “EXC_BAD_ACCESS”. If I remove the reloadData line the code works on the device. I'm wondering if this is something to do with the way I've built the keys array (ie using autoreleased strings and dictionaries).

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  • implementing gravity to projectile - delta time issue

    - by Murat Nafiz
    I'm trying to implement a simple projectile motion in Android (with openGL). And I want to add gravity to my world to simulate a ball's dropping realistically. I simply update my renderer with a delta time which is calculated by: float deltaTime = (System.nanoTime()-startTime) / 1000000000.0f; startTime = System.nanoTime(); screen.update(deltaTime); In my screen.update(deltaTime) method: if (isballMoving) { golfBall.updateLocationAndVelocity(deltaTime); } And in golfBall.updateLocationAndVelocity(deltaTime) method: public final static double G = -9.81; double vz0 = getVZ0(); // Gets initial velocity(z) double z0 = getZ0(); // Gets initial height double time = getS(); // gets total time from act begin double vz = vz0 + G * deltaTime; // calculate new velocity(z) double z = z0 - vz0 * deltaTime- 0.5 * G * deltaTime* deltaTime; // calculate new position time = time + deltaTime; // Update time setS(time); //set new total time Now here is the problem; If I set deltaTime as 0.07 statically, then the animation runs normally. But since the update() method runs as faster as it can, the length and therefore the speed of the ball varies from device to device. If I don't touch deltaTime and run the program (deltaTime's are between 0.01 - 0.02 with my test devices) animation length and the speed of ball are same at different devices. But the animation is so SLOW! What am I doing wrong?

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  • socket timeout and remove O_NONBLOCK option

    - by juxstapose
    Hello, I implemented a socket timeout and retry but in order to do it I had to set the socket as a non-blocking socket. However, I need the socket to block. This was my attempt at a solution to these two problems. This is not working. Subsequent send calls block but never send any data. When I connect without the select and the timeout, subsequent send calls work normally. References: C: socket connection timeout How to reset a socket back to blocking mode (after I set it to nonblocking mode)? Code: fd_set fdset; struct timeval tv; fcntl(dsock, F_SETFL, O_NONBLOCK); tv.tv_sec = theDeviceTimeout; tv.tv_usec = 0; int retries=0; logi(theLogOutput, LOG_INFO, "connecting to device socket num retrys: %i", theDeviceRetry); for(retries=0;retries<theDeviceRetry;retries++) { connect(dsock, (struct sockaddr *)&daddr, sizeof daddr); FD_ZERO(&fdset); FD_SET(dsock, &fdset); if (select(dsock + 1, NULL, &fdset, NULL, &tv) == 1) { int so_error; socklen_t slen = sizeof so_error; getsockopt(dsock, SOL_SOCKET, SO_ERROR, &so_error, &slen); if (so_error == 0) { logi(theLogOutput, LOG_INFO, "connected to socket on port %i on %s", theDevicePort, theDeviceIP); break; } else { logi(theLogOutput, LOG_WARN, "connect to %i failed on ip %s because %s retries %i", theDevicePort, theDeviceIP, strerror(errno), retries); logi(theLogOutput, LOG_WARN, "failed to connect to device %s", strerror(errno)); logi(theLogOutput, LOG_WARN, "error: %i %s", so_error, strerror(so_error)); continue; } } } int opts; opts = fcntl(dsock,F_GETFL); logi(theLogOutput, LOG_DEBUG, "clearing nonblock option %i retries %i", opts, retries); opts ^= O_NONBLOCK; fcntl(dsock, F_SETFL, opts);

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  • Jquery Returning values to original

    - by Cam
    So my script works perfectly, but here is the issue, I have buttons (Sprite action here) that are 40px height, but the top 20 only shows perfectly. When you click the button ie img the bottom 20px show perfecto! but... Issue, i included in my script a way to return all others to there default (only one should be selected) now, how can I fix this issue that I seem unable to correct as I can select multiple of them ** USERS can switch ** The last part of the script that is the issue. Thanks $(document).ready(function() { $('.form_sub').hide(); $('.theader').addClass('active'); $('.theader_t').click(function() { $('.form_header').show(); $('.form_sub').hide(); $('.theader').addClass('active'); $('.sub_theader').removeClass('active'); }); $('.sub_theader_t').click(function() { $('.form_header').hide(); $('.form_sub').show(); $('.theader').removeClass('active'); $('.sub_theader').addClass('active'); }); $('.top_head_img').click(function() { $(this).css({ position: 'relative', bottom: '20px' }).siblings().css( 'bottom', '0' ); }); }); <ul class="top_head"> <li> <a href="javascript:void(0)" onClick="selectPic5('top');"><img src="custom/images/top2.jpg" alt="Left" border="0" class="top_head_img"/></a> </li> <li> <a href="javascript:void(0)" onClick="selectPic5('center');"><img src="custom/images/mid2.jpg" alt="Center" border="0" class="top_head_img"/></a> </li> <li> <a href="javascript:void(0)" onClick="selectPic5('bottom');"><img src="custom/images/bot2.jpg" alt="Right" border="0" class="top_head_img"/></a> </li> </ul>

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  • What is the fastest way to do division in C for 8bit MCUs?

    - by Jordan S
    I am working on the firmware for a device that uses an 8bit mcu (8051 architecture). I am using SDCC (Small Device C Compiler). I have a function that I use to set the speed of a stepper motor that my circuit is driving. The speed is set by loading a desired value into the reload register for a timer. I have a variable, MotorSpeed that is in the range of 0 to 1200 which represents pulses per second to the motor. My function to convert MotorSpeed to the correct 16bit reload value is shown below. I know that float point operations are pretty slow and I am wondering if there is a faster way of doing this... void SetSpeed() { float t = MotorSpeed; unsigned int j = 0; t = 1/t ; t = t / 0.000001; j = MaxInt - t; TMR3RL = j; // Set reload register for desired freq return; }

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  • Custom button with property as StaticResource

    - by alin
    I am trying to achieve the following thing: use an svg image into a custom button. In order to do this I created a Custom button: public class MainButton : Button { static MainButton() { DefaultStyleKeyProperty.OverrideMetadata(typeof(MainButton), new FrameworkPropertyMetadata(typeof(MainButton))); } public string Text { get { return (string)GetValue(TextProperty); } set { SetValue(TextProperty, value); } } public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(MainButton), new UIPropertyMetadata("")); public object Image { get { return (object)GetValue(ImageProperty); } set { SetValue(ImageProperty, value); } } public static readonly DependencyProperty ImageProperty = DependencyProperty.Register("Image", typeof(object), typeof(MainButton), new UIPropertyMetadata("")); } I took a svg file, opened it in inkscape and saved it as xaml file. I opened Themes.xaml and added the created xaml image as a ControlTemplate And the button style is: Style TargetType="{x:Type local:MainButton}" <StackPanel Canvas.Top="12" Canvas.Left="0" Canvas.ZIndex="2" Width="80"> <ContentControl x:Name="Img" Template="{StaticResource Home}" /> </StackPanel> <StackPanel x:Name="spText" Canvas.Top="45" Canvas.Left="1" Canvas.ZIndex="1" Width="80"> <TextBlock x:Name="Txt" Text="{Binding Path=(local:MainButton.Text), RelativeSource ={RelativeSource FindAncestor, AncestorType ={x:Type Button}}}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="White" FontSize="14"/> </StackPanel> ... As you can see I have hardcoded the StaticResource name I want to be able to have a binding with property Image on this Template, something like So that I can set the Image property of the button with the name of the StaticResource I want. For example, having beside "Home" image, another one "Back" I would have two buttons in MainWindow declared like this: Any advice is kindly taken. Thank you for your time.

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  • Adding label and text box control to GUI

    - by Mike
    I would like to know what code to insert and where to add a simple label that can just say the word "Label" and a input text box that I can enter a number. public CalculateDimensions() { JTabbedPane Tab = new JTabbedPane(); JPanel jplInnerPanel1 = createInnerPanel("First Tab"); Tab.addTab("One", jplInnerPanel1); Tab.setSelectedIndex(0); JPanel jplInnerPanel2 = createInnerPanel("Second Tab"); Tab.addTab("Two", jplInnerPanel2); JPanel jplInnerPanel3 = createInnerPanel("Third Tab"); Tab.addTab("Three", jplInnerPanel3); JPanel jplInnerPanel4 = createInnerPanel("Fourth Tab"); Tab.addTab("Four", jplInnerPanel4); JPanel jplInnerPanel5 = createInnerPanel("Fifth Tab"); Tab.addTab("Five", jplInnerPanel5); setLayout(new GridLayout(1, 1)); add(Tab); } protected JPanel createInnerPanel(String text) { JPanel jplPanel = new JPanel(); JLabel jlbDisplay = new JLabel(text); jlbDisplay.setHorizontalAlignment(JLabel.CENTER); jplPanel.setLayout(new GridLayout(1, 1)); jplPanel.add(jlbDisplay); return jplPanel; } public static void main(String[] args) { JFrame frame = new JFrame("Calculations"); frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); frame.getContentPane().add(new CalculateDimensions(), BorderLayout.CENTER); frame.setSize(400, 400); frame.setVisible(true); } }

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