Search Results

Search found 265 results on 11 pages for 'sane'.

Page 2/11 | < Previous Page | 1 2 3 4 5 6 7 8 9 10 11  | Next Page >

• Where Can I find a good tutorial for IJG libjpeg

  - by Dana the Sane

  I need to do some work with this library and I'm finding the documentation at http://apodeline.free.fr/DOC/libjpeg/libjpeg.html to be deficient (incomplete function signatures, etc). Does anyone know of some other sides or have some example code illustrating common tasks? [Edit] I also found this question with an example, but any others would be helpful.

  Read the article

• Silverlight 3.0 Custom Cursor in Chart

  - by Wonko the Sane

  Hello All, I'm probably overlooking something that will be obvious when I see the solution, but for now... I am attempting to use a custom cursor inside the chart area of a Toolkit chart. I have created a ControlTemplate for the chart, and a grid to contain the cursors. I show/hide the cursors, and attempt to move the containing Grid, using various Mouse events. The cursor is being displayed at the correct times, but I cannot get it to move to the correct position. Here is the ControlTemplate (the funky colors are just attempts to confirm what the different pieces of the template pertain to): <dataVisTK:Title Content="{TemplateBinding Title}" Style="{TemplateBinding TitleStyle}"/> <Grid Grid.Row="1"> <!-- Remove the Legend --> <!--<dataVisTK:Legend x:Name="Legend" Title="{TemplateBinding LegendTitle}" Style="{TemplateBinding LegendStyle}" Grid.Column="1"/>--> <chartingPrimitivesTK:EdgePanel x:Name="ChartArea" Background="#EDAEAE" Style="{TemplateBinding ChartAreaStyle}" Grid.Column="0"> <Grid Canvas.ZIndex="-1" Background="#2008AE" Style="{TemplateBinding PlotAreaStyle}"> </Grid> <Border Canvas.ZIndex="1" BorderBrush="#FF250010" BorderThickness="3" /> <Grid x:Name="gridHandCursors" Canvas.ZIndex="5" Width="32" Height="32" Visibility="Collapsed"> <Image x:Name="cursorGrab" Width="32" Source="Resources/grab.png" /> <Image x:Name="cursorGrabbing" Width="32" Source="Resources/grabbing.png" Visibility="Collapsed"/> </Grid> </chartingPrimitivesTK:EdgePanel> </Grid> </Grid> </Border> and here are the mouse events (in particular, the MouseMove): void TimelineChart_Loaded(object sender, RoutedEventArgs e) { chartTimeline.UpdateLayout(); List<FrameworkElement> chartChildren = GetLogicalChildrenBreadthFirst(chartTimeline).ToList(); mChartArea = chartChildren.Where(element => element.Name.Equals("ChartArea")).FirstOrDefault() as Panel; if (mChartArea != null) { grabCursor = chartChildren.Where(element => element.Name.Equals("cursorGrab")).FirstOrDefault() as Image; grabbingCursor = chartChildren.Where(element => element.Name.Equals("cursorGrabbing")).FirstOrDefault() as Image; mGridHandCursors = chartChildren.Where(element => element.Name.Equals("gridHandCursors")).FirstOrDefault() as Grid; mChartArea.Cursor = Cursors.None; mChartArea.MouseMove += new MouseEventHandler(mChartArea_MouseMove); mChartArea.MouseLeftButtonDown += new MouseButtonEventHandler(mChartArea_MouseLeftButtonDown); mChartArea.MouseLeftButtonUp += new MouseButtonEventHandler(mChartArea_MouseLeftButtonUp); if (mGridHandCursors != null) { mChartArea.MouseEnter += (s, e2) => mGridHandCursors.Visibility = Visibility.Visible; mChartArea.MouseLeave += (s, e2) => mGridHandCursors.Visibility = Visibility.Collapsed; } } } void mChartArea_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { if (grabCursor != null) grabCursor.Visibility = Visibility.Visible; if (grabbingCursor != null) grabbingCursor.Visibility = Visibility.Collapsed; } void mChartArea_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { if (grabCursor != null) grabCursor.Visibility = Visibility.Collapsed; if (grabbingCursor != null) grabbingCursor.Visibility = Visibility.Visible; } void mChartArea_MouseMove(object sender, MouseEventArgs e) { if (mGridHandCursors != null) { Point pt = e.GetPosition(null); mGridHandCursors.SetValue(Canvas.LeftProperty, pt.X); mGridHandCursors.SetValue(Canvas.TopProperty, pt.Y); } } Any help past this roadblock would be greatly appreciated! Thanks, wTs

  Read the article

• Measuring WPF Rendering Performance

  - by Wonko the Sane

  Hi All, I am looking to get some better performance on an ItemsControl, and I believe that the biggest hang-up is the rendering. The ItemTemplate of the control consists of (basically) a Border around an ImageBrush. The ItemsSource is an ObservableCollection of a custom class (of which I have no real control). What I'd like to know are some techniques for measuring (rudimentary measurements are fine to start with) the performance. This is an XP machine using .NET 3.5 SP1. Thanks, wTs

  Read the article

• Custom ProgressBarBrushConverter Not Filling In ProgressBar

  - by Wonko the Sane

  Hello All, I am attempting to create a custom ProgressBarBrushConverter, based on information from here and here. However, when it runs, the progress is not being shown. If I use the code found in the links, it appears to work correctly. Here is the converter in question: public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { ProgressBar progressBar = null; foreach (object value in values) { if (value is ProgressBar) { progressBar = value as ProgressBar; break; } } if (progressBar == null) return DependencyProperty.UnsetValue; FrameworkElement indicator = progressBar.Template.FindName("PART_Indicator", progressBar) as FrameworkElement; DrawingBrush drawingBrush = new DrawingBrush(); drawingBrush.Viewport = drawingBrush.Viewbox = new Rect(0.0, 0.0, indicator.ActualWidth, indicator.ActualHeight); drawingBrush.ViewportUnits = BrushMappingMode.Absolute; drawingBrush.TileMode = TileMode.None; drawingBrush.Stretch = Stretch.None; DrawingGroup group = new DrawingGroup(); DrawingContext context = group.Open(); context.DrawRectangle(progressBar.Foreground, null, new Rect(0.0, 0.0, indicator.ActualWidth, indicator.ActualHeight)); context.Close(); drawingBrush.Drawing = group; return drawingBrush; } Here is the ControlTemplate (the MultiBinding is to make sure that the converter is called whenever the Value or IsIndeterminate properties are changed): <ControlTemplate x:Key="customProgressBarTemplate" TargetType="{x:Type ProgressBar}"> <Grid> <Path x:Name="PART_Track" HorizontalAlignment="Left" VerticalAlignment="Top" Stretch="Fill" StrokeLineJoin="Round" Stroke="#DDCBCBCB" StrokeThickness="4" Data="M 20,100 L 80,10 C 100,120 160,140 190,180 S 160,220 130,180 T 120,150 20,100 Z "> <Path.Fill> <MultiBinding> <MultiBinding.Converter> <local:ProgressBarBrushConverter /> </MultiBinding.Converter> <Binding RelativeSource="{RelativeSource FindAncestor, AncestorType={x:Type ProgressBar}}" /> <Binding Path="IsIndeterminate" RelativeSource="{RelativeSource TemplatedParent}"/> <Binding Path="Value" RelativeSource="{RelativeSource TemplatedParent}"/> </MultiBinding> </Path.Fill> <!--<Path.LayoutTransform> <RotateTransform Angle="180" CenterX="190" CenterY="110" /> </Path.LayoutTransform>--> </Path> <Rectangle x:Name="PART_Indicator" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="1" /> </Grid> </ControlTemplate> Finally, the Window code (fairly straightforward - it just animates progress from 0 to 100 and back again): <ProgressBar x:Name="progress" Template="{StaticResource customProgressBarTemplate}" Foreground="Red"> <ProgressBar.Triggers> <EventTrigger RoutedEvent="ProgressBar.Loaded"> <BeginStoryboard x:Name="storyAnimate"> <Storyboard> <DoubleAnimationUsingKeyFrames Duration="0:0:12" AutoReverse="True" FillBehavior="Stop" RepeatBehavior="Forever" Storyboard.TargetName="progress" Storyboard.TargetProperty="(ProgressBar.Value)"> <LinearDoubleKeyFrame Value="0" KeyTime="0:0:0" /> <LinearDoubleKeyFrame Value="100" KeyTime="0:0:5" /> <LinearDoubleKeyFrame Value="100" KeyTime="0:0:6" /> <LinearDoubleKeyFrame Value="0" KeyTime="0:0:11" /> <LinearDoubleKeyFrame Value="0" KeyTime="0:0:12" /> </DoubleAnimationUsingKeyFrames> </Storyboard> </BeginStoryboard> </EventTrigger> </ProgressBar.Triggers> </ProgressBar> I am thinking that the problem is in the DrawRectangle call in the Convert method, but setting a TracePoint on it shows what appear to be valid values for the Rect. What am I missing here? Thanks, wTs

  Read the article

• ItemsControl ItemTemplate Binding

  - by Wonko the Sane

  Hi All, In WPF4.0, I have a class that contains other class types as properties (combining multiple data types for display). Something like: public partial class Owner { public string OwnerName { get; set; } public int OwnerId { get; set; } } partial class ForDisplay { public Owner OwnerData { get; set; } public int Credit { get; set; } } In my window, I have an ItemsControl with the following (clipped for clarity): <ItemsControl ItemsSource={Binding}> <ItemsControl.ItemTemplate> <DataTemplate> <local:MyDisplayControl OwnerName={Binding OwnerData.OwnerName} Credit={Binding Credit} /> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> I then get a collection of display information from the data layer, and set the DataContext of the ItemsControl to this collection. The "Credit" property gets displayed correctly, but the OwnerName property does not. Instead, I get a binding error: Error 40: BindingExpression path error: 'OwnerName' property not found on 'object' ''ForDisplay' (HashCode=449124874)'. BindingExpression:Path=OwnerName; DataItem='ForDisplay' (HashCode=449124874); target element is 'TextBlock' (Name=txtOwnerName'); target property is 'Text' (type 'String') I don't understand why this is attempting to look for the OwnerName property in the ForDisplay class, rather than in the Owner class from the ForDisplay OwnerData property. Edit It appears that it has something to do with using the custom control. If I bind the same properties to a TextBlock, they work correctly. <ItemsControl ItemsSource={Binding}> <ItemsControl.ItemTemplate> <DataTemplate> <StackPanel> <local:MyDisplayControl OwnerName={Binding OwnerData.OwnerName} Credit={Binding Credit} /> <TextBlock Text="{Binding OwnerData.OwnerName}" /> <TextBlock Text="{Binding Credit}" /> </StackPanel> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> Thanks, wTs

  Read the article

• C# Thread-safe Extension Method

  - by Wonko the Sane

  Hello All, I may be waaaay off, or else really close. Either way, I'm currently SOL. :) I want to be able to use an extension method to set properties on a class, but that class may (or may not) be updated on a non-UI thread, and derives from a class the enforces updates to be on the UI thread (which implements INotifyPropertyChanged, etc). I have a class defined something like this: public class ClassToUpdate : UIObservableItem { private readonly Dispatcher mDispatcher = Dispatcher.CurrentDispatcher; private Boolean mPropertyToUpdate = false; public ClassToUpdate() : base() { } public Dispatcher Dispatcher { get { return mDispatcher; } } public Boolean PropertyToUpdate { get { return mPropertyToUpdate; } set { SetValue("PropertyToUpdate", ref mPropertyToUpdate, value; } } } I have an extension method class defined something like this: static class ExtensionMethods { public static IEnumerable<T> SetMyProperty<T>(this IEnumerable<T> sourceList, Boolean newValue) { ClassToUpdate firstClass = sourceList.FirstOrDefault() as ClassToUpdate; if (firstClass.Dispatcher.Thread.ManagedThreadId != System.Threading.Thread.CurrentThread.ManagedThreadId) { // WHAT GOES HERE? } else { foreach (var classToUpdate in sourceList) { (classToUpdate as ClassToUpdate ).PropertyToUpdate = newValue; yield return classToUpdate; } } } } Obviously, I'm looking for the "WHAT GOES HERE" in the extension method. Thanks, wTs

  Read the article

• AreaDataPoint in SL3 Chart is Fixed Size

  - by Wonko the Sane

  In Silverlight 3, it appears that the AreaDataPoint template ignores any size set in its ControlTemplate. <ControlTemplate TargetType="chartingTK:AreaDataPoint"> <Grid x:Name="Root" Opacity="1"> <!-- Width and Height are ignored --> <Ellipse Width="75" Height="25" StrokeThickness="{TemplateBinding BorderThickness}" Stroke="OrangeRed" Fill="{TemplateBinding Background}"/> </Grid> </ControlTemplate> Does anybody know of a workaround?

  Read the article

• Which python mpi library to use?

  - by Dana the Sane

  I'm starting work on some simulations using MPI and want to do the programming in Python/scipy. The scipy site lists a number of mpi libraries, but I was hoping to get feedback on quality, ease of use, etc from anyone who has used one.

  Read the article

• Refreshing Read-Only (Chained) Property in MVVM

  - by Wonko the Sane

  I'm thinking this should be easy, but I can't seem to figure this out. Take these properties from an example ViewModel (ObservableViewModel implements INotifyPropertyChanged): class NameViewModel : ObservableViewModel { Boolean mShowFullName = false; string mFirstName = "Wonko"; string mLastName = "DeSane"; private readonly DelegateCommand mToggleName; public NameViewModel() { mToggleName = new DelegateCommand(() => ShowFullName = !mShowFullName); } public ICommand ToggleNameCommand { get { return mToggleName; } } public Boolean ShowFullName { get { return mShowFullName; } set { SetPropertyValue("ShowFullName", ref mShowFullName, value); } } public string Name { get { return (mShowFullName ? this.FullName : this.Initials); } } public string FullName { get { return mFirstName + " " + mLastName; } } public string Initials { get { return mFirstName.Substring(0, 1) + "." + mLastName.Substring(0, 1) + "."; } } } The guts of such a [insert your adjective here] View using this ViewModel might look like: <TextBlock x:Name="txtName" Grid.Row="0" Text="{Binding Name}" /> <Button x:Name="btnToggleName" Command="{Binding ToggleNameCommand}" Content="Toggle Name" Grid.Row="1" /> The problem I am seeing is when the ToggleNameCommand is fired. The ShowFullName property is properly updated by the command, but the Name binding is never updated in the View. What am I missing? How can I force the binding to update? Do I need to implement the Name properties as DependencyProperties (and therefore derive from DependencyObject)? Seems a little heavyweight to me, and I'm hoping for a simpler solution. Thanks, wTs

  Read the article

• Custom Image Button and Radio/Toggle Button from Common Base Class

  - by Wonko the Sane

  Hi All, I would like to create a set of custom controls that are basically image buttons (it's a little more complex than that, but that's the underlying effect I'm going for) that I've seen a few different examples for. However, I would like to further extend that to also allow radio/toggle buttons. What I'd like to do is have a common abstract class called ImageButtonBase that has default implementations for ImageSource and Text, etc. That makes a regular ImageButton implementation pretty easy. The issue I am having is creating the RadioButton flavor of it. As I see it, there are at least three options: It would be easy to create something that derives from RadioButton, but then I can't use the abstract class I've created. I could change the abstract class to an interface, but then I lose the abstract implementations, and will in fact have duplication of code. I could derive from my abstract class, and re-implement the RadioButton-type properties and events (IsChecked, GroupName, etc.), but that certainly doesn't seem like a great idea. Note: I have seen http://stackoverflow.com/questions/2362641/how-to-get-a-group-of-toggle-buttons-to-act-like-radio-buttons-in-wpf, but what I want to do is a little more complex. I'm just wondering if anybody has an example of an implementation, or something that might be adapted to this kind of scenario. I can see pros and cons of each of the ideas above, but each comes with potential pitfalls. Thanks, wTs

  Read the article

• Disable Adding Item to Collection

  - by Wonko the Sane

  Hi All, I'm sure there's an "easy" answer to this, but for the moment it escapes me. In an MVVM application, I have a property that is a ObservableCollection, used for displaying some set of elements on the view. private readonly ObservableCollection<MyType> mMyCollection = new ObservableCollection<MyType>(); public ObservableCollection<MyType> MyCollection { get { return mMyCollection; } } I want to restrict consumers of this collection from simply using the property to add to the collection (i.e. I want to prevent this from the view): viewModel.MyCollection.Add(newThing); // want to prevent this! Instead, I want to force the use of a method to add items, because there may be another thread using that collection, and I don't want to modify the collection while that thread is processing it. public void AddToMyCollection(MyType newItem) { // Do some thread/task stuff here } Thanks, wTs

  Read the article

• How to build Gantt chart from a set of Redmine tickets without filling dates in all of them?

  - by Alexander Gladysh

  Redmine 1.1.1 I've created a set of tickets for a new project. In each issue I filled Subject, Description and Estimated time fields. I also filled blocks/blocked by dependencies in Related issues. But the Gantt chart for this project is empty (that is, it contains all the tasks, but does not contain any "bars" for them). I need to get a Gantt chart (or any other visual representation) to show to other project members. I'd hate to type all that information again into OpenProj. Is there a way to get a serviceable Gantt chart from the Redmine? Update: In the answers below I read that to get working Gantt chart I have to input start date and due date manually for each issue. I believe that this information should be inferred automatically from start date of first ticket (first — depenency-wise), estimated time of each ticket, dependency graph, resource assignment and working hours calendar. Just as it happens in any minimally sane Gantt chart project management tool. To enter this information by hand and to keep it up-to-date manually as the project evolves is insane waste of time. Is there a way to generate Gantt chart from the set of Redmine tickets without filling in all this information manually? (Solutions involving data export + import in sane tool or involving existing plugins are perfectly acceptable.)

  Read the article

• File doesn't exist when trying to change permissions following the avasys image scan manual

  - by Howard Graham

  I was finally able to connect to avasys.jp and downloaded and installed iscan_2.28.1-3.ltdl7_amd64.deb iscan-data_1.13.0-1_all.deb. The programs appeared to install correctly. I then ran sane-find-scanner and got back: found USB scanner (vendor=0x04b8, product=0x012d) at libusb:001:003 I then ran lsusb and got back: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 04b8:012d Seiko Epson Corp. Perfection V10/V100 (GT-S600/F650) Bus 001 Device 004: ID 03f0:4817 Hewlett-Packard Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse the avasys image scan manual instructed me to run chmod 0666 /proc/bus/usb/001/003 which returned chmod: cannot access `/proc/bus/usb/001/003': No such file or directory In 12.04, no such directory exists. 12.04 appears to deal with USB in another way. What must I do to get the usb port 001/003 recognized by xsane and sane as the port where the scanner can be located? What must I do to continue installing the scanner?

  Read the article

• Flash/AIR AS3: comparing contents of Screen.screens

  - by matt lohkamp

  In a sane world, this works as expected: var array:Array = ['a','b','c]; trace(array.indexOf(array[0])); // returns 0 In an insane world, this happens: trace(Screen.screens.indexOf(Screen.screens[0])); // returns -1 ... if Screen.screens is an Array of the available instances of Screen, why can't that array give an accurate indexOf one of its own children? edit - apparently to get back to the world of the sane, all you have to do is this: var array:Array = Screen.screens; trace(array.indexOf(array[0])); // returns 0 Anyone know why?

  Read the article

• Which is the best .NET image capture API for me to use?

  - by David

  I have been tasked with integrating image acquisition into a .NET application and I have been looking for an API to use for performing this function. I have come across several "standard" APIs, some have been in existence for a long time, some not so long. I have looked at references to ISIS, TWAIN, WIA, and SANE (said to be mostly *nix). They all appear to be Win32 libraries except for SANE, and I was wondering what the current recommendations are for talking to image acquisition devices (scanners)? Feel free to recommend something else if you feel it is better. I'm looking for open source options. Edit: I put open source, when what I actually meant was free. using WIA or TWAIN is fine since they are free even though they are proprietary interfaces.

  Read the article

• Data structures for a 2D multi-layered and multi-region map?

  - by DevilWithin

  I am working on a 2D world editor and a world format subsequently. If I were to handle the game "world" being created just as a layered set of structures, either in top or side views, it would be considerably simple to do most things. But, since this editor is meant for 3rd parties, I have no clue how big worlds one will want to make and I need to keep in mind that eventually it will become simply too much to check, handling and comparing stuff that are happening completely away from the player position. I know the solution for this is to subdivide my world into sub regions and stream them on the fly, loading and unloading resources and other data. This way I know a virtually infinite game area is achievable. But, while I know theoretically what to do, I really have a few questions I'd hoped to get answered for some hints about the topic. The logic way to handle the regions is some kind of grid, would you pick evenly distributed blocks with equal sizes or would you let the user subdivide areas by taste with irregular sized rectangles? In case of even grids, would you use some kind of block/chunk neighbouring system to check when the player transposes the limit or just put all those in a simple array? Being a region a different data structure than its owner "game world", when streaming a region, would you deliver the objects to the parent structures and track them for unloading later, or retain the objects in each region for a more "hard-limit" approach? Introducing the subdivision approach to the project, and already having a multi layered scene graph structure on place, how would i make it support the new concept? Would you have the parent node have the layers as children, and replicate in each layer node, a node per region? Or the opposite, parent node owns all the regions possible, and each region has multiple layers as children? Or would you just put the region logic outside the graph completely(compatible with the first suggestion in Q.3) When I say virtually infinite worlds, I mean it of course under the contraints of the variable sizes and so on. Using float positions, a HUGE world can already be made. Do you think its sane to think beyond that? Because I think its ok to stick to this limit since it will never be reached so easily.. As for when to stream a region, I'm implementing it as a collection of watcher cameras, which the streaming system works with to know what to load/unload. The problem here is, i will be needing some kind of warps/teleports built in for my game, and there is a chance i will be teleporting a player to a unloaded region far away. How would you approach something like this? Is it sane to load any region to memory which can be teleported to by a warp within a radius from the player? Sorry for the huge question, any answers are helpful!

  Read the article

• Best way to solve tile drawing in 2D side scroller?

  - by TheCompBoy

  What i still can't figure out is which would be the more sane way / easier and faster way to draw the map on the screen.. I mean i will use many tiles for my maps in my side scroller.. But problem is should i make the maps in whole images like one .png file for each map (Example) or should i draw the tiles by code like a for loop in c++.. Which way is most recomended or where can i read about which way is the best.

  Read the article

• How to configure an Ubuntu 12.04 virtual server and VMWare ESXi5 the way VMWare would be able to shut it down properly?

  - by Ivan

  I run an Ubuntu 12.04 server as a virtual machine on a VMWare ESXi 5 server. I've configured VMWare to shut the quest machines down the sane way (with an ACPI (if I understand it righ) shutdown signal so that guest OSes would do it). And this works with other VMs (running Windows 7 Professional and openSuSE) but doesn't work with the Ubuntu server - VMWare still offers just to power them off when I ask it to stop the guest. Any ideas how to fix this?

  Read the article

• My internet goes down after a while

  - by Rafa Mena

  The problem is that the internet goes down after a while, i can connect perfectly when i first turn on my netbook but after a while it disconects and keeps trying to reconect but never gets it. now, im completely new in ubuntu, y merely know a few commands for the terminal and im not sure what info do you need from me to help... all i know is that the Wi-Fi is failind on ubuntu but not in windows 7 (in the sane netbook)

  Read the article

• zsh : How to list directory content with tab?

  - by Philippe CM

  I just switched from BASH to ZSH and thing are pretty good, but: when I start typing cd /usr/share/s and hit TAB, this is what I get : $ cd /usr/share/sane/ sane/ skype/ ssl-cert/ screen/ smplayer/ strigi/ seed-gtk3/ snmp/ synaptic/ sgml/ software-properties/ system-config-printer/ sgml-base/ soprano/ sysv-rc/ sgml-data/ sounds/ simple-scan/ splashy/ And this is ok. If I then hit TAB again, I get $ cd /usr/share/screen/, the next candidate, witch is also OK. (BTW, how do I cycle back to the previous candidate? Sorry, on to my question) Now what if I want to see the contents of /usr/share/screen/ now ? You now, BASH-style? The cursor is at the end of the line, will I have to ctrl-a (or home), then del del (to erase cd) then ls then ENTER? That seems like a lot of typing. (And it - possibly unnecessarily - enters the command in the history) Would not there be a key (maybe modifier-TAB? but the obvious candidates are already taken by the desktop... I digress) that would tell zsh to stop cycling through /usr/share/ and instead, just list the content /usr/share/screen/ ?

  Read the article

• PHP and Ruby: how to leverage both? and, is it worth it?

  - by dukeofgaming

  As you might have noticed from the title, this is not a "PHP or Ruby", or a "PHP vs. Ruby" question. This is a question on how to leverage PHP + Ruby in the same business. I myself am a PHP developer, I love the language because of its convenience and I specially love the ecosystem of resources that surround it: Joomla, Drupal, Wordpress, Symfony2, Doctrine2, etc. However, the language itself can be a little disappointing sometimes. OTOH, Ruby looks like a very beautiful language and —from studying it superficially in several aspects— I could say it is leaner than Python as a language per se. However, from what I've seen there is pretty much only RoR making noise, and I don't like RoR so much (mainly because its model layer). As Co-CEO and CTO at my company I'm trying to think outside of the box since I want to start to focus on the human side of technology and see if its sane to use both PHP and Ruby. Here are some random thoughts: Ruby folk seem to be generally better suited programmers than PHP folk (in terms of averages), I know the previous statement is somewhat baloney because very good and well architected PHP can be written, but I'd say the Ruby programmer culture is better than PHP's. The thing about Ruby is that it seems better suited for rapid development, I don't really know if this is only the case for RoR, but I do know that there are certain practices (perhaps not so good) like monkey patching that let business needs be satified quicker. From a marketing point of view (yep, sometimes you need to leverage the marketing BS for the sake of your company) Ruby seems better while PHP carries some stigmas. PHP 5.4 is bringing traits, and that is better/cleaner than mixins. That could really make PHP as lean as Ruby —or more— for certain stuff. Now, concretely, my questions: Would a PHP programmer want to learn Ruby?, I know I do, but conversely, would a Ruby programmer want to learn PHP?. What kinds of projects or situations would be better suited for Ruby that are not suited for PHP?. What is the actual ecosystem of Ruby?, aside from RoR, I have not seen other hyped technologies/frameworks (I've seen RSpec, but I confess being a total noob on what BDD really consists of and its implications). Supposing there are a certain type of projects ideal for Ruby, would there be a moment that its better to move it to PHP?. I know PHP can handle lots of stuff, but I've read that Ruby has its limitations when scaling (or is that RoR?, or is that baloney for both?). Finally and most importantly, would it be sane to maintain projects in two languages?, or is that just stupid. As I said, it looks like Ruby is leaner on the short term and that can make a project happen and succeed, but I'm not so sure about that on the long run. I'm looking for insights mainly from people that know well the strengths and weaknesses of the languages —preferably both of them— and Ruby's ecosystem in real practice, meaning: frameworks and applications like the ones I quoted from PHP's ecosystem. Best regards and thanks for your time.

  Read the article

• Free and Open Source Software in Oracle Solaris 11.1

  - by user13277799

  Oracle Solaris 11.1 contains number of Free and Open Source packages. The following table contains important FOSS packages with their versions available in this latest Oracle Solaris release. a2ps 4.14 aalib 1.4.0 pmtools 20071116 apache-ant 1.7.1 httpd 2.2.22 mod_dtrace 0.3.1 mod_fcgid 2.3.6 tomcat-connectors 1.2.28 mod_perl 2.0.4 mod_proxy_html 3.1.1 modsecurity-apache 2.5.9 mod_wsgi 3.3 apr 1.3.9 apr-util 1.3.9 areca 7.1 autoconf 2.68 autogen 5.9 automake 1.10 automake 1.11.2 automake 1.9.6 bash 4.1 bcc 0.16.17 beanshell 2.0b4 db 5.1.25 bind 9.6-ESV-R7-P2 binutils 2.21.1 bison 2.3 bzip2 1.0.6 cdrtools 3.00 clisp 2.47 cmake 2.8.6 gnu 0.5.11 conflict 20100627 convmv 1.15 coreutils 8.5 cups 1.4.5 curl 7.21.2 cvs 1.12.13 diffutils 2.8.7 doxygen 1.7.6.1 ejabberd 2.1.8 elinks 0.11.7 emacs 23.4 otp_src R12B-5 fcgi 2.4.0 fetchmail 6.3.22 flex 2.5.35 foomatic-db 20080903 foomatic-db-engine 3.0-20080903 foomatic-filters 4.0.15 foomatic-filters-ppds 20080818 fping 2.4b2_to gawk 3.1.8 gcc 3.4.3 gcc 4.5.2 gd 2.0.35 gdb 6.8 gdbm 1.8.3 gettext 0.16.1 grep 2.10 ghostscript 9.00 git 1.7.9.2 gnu-gs-fonts-other 6.0 gnu-gs-fonts-std 6.0 gmp 4.3.2 gnupg 2.0.17 gnuplot 4.6.0 pth 2.0.7 gocr 0.48 gperf 3.0.3 gpgme 1.1.8 grails 1.0.3 graphviz 2.28.0 tar 1.26 guile 1.8.6 gutenprint 5.2.7 gzip 1.4 hal-cups-utils 0.6.19 hexedit 1.2.12 hplip 3.10.9 httping 1.4.4 hwdata 0.5.11 iftop 0.17 ilmbase 1.0.1 ImageMagick 6.3.4 iperf 2.0.4 ipmitool 1.8.11 ircii 20060725 dhcp 4.1-ESV-R7 junit 4.10 INIT 2011-02-08 lcms 1.19 less 436 lftp 4.3.1 libassuan 2.0.1 confuse 2.6 libedit 20110802-3.0 libee 0.3.2 libestr 0.1.2 libevent 1.4.14b expat 2.1.0 libidn 1.19 libksba 1.1.0 libmcrypt 2.5.8 libmemcached 0.16 libmng 1.0.10 neon 0.29.5 libnet 1.1.5 libpcap 1.1.1 librsync 0.9.7 libsigsegv 2.6 libsndfile 1.0.23 libtecla 1.6.1 libtool 2.4.2 libtorrent 0.12.2 libusbugen 0.1.8 libusb 0.1.8 libxml2 2.7.6 libxslt 1.1.26 lighttpd 1.4.23 links 1.03 logilab-astng 0.19.0 logilab-common 0.40.0 lua 5.1.4 m4 1.4.12 make 3.82 mc 4.7.5.2 meld 1.4.0 memcached 1.4.5 memcached-java 2.0.1 mercurial 2.2.1 mpc 0.9 mpfr 2.4.2 mutt 1.5.21 mysql 5.1.37 ncftp 3.2.3 net-snmp 5.4.1 nethack 3.4.3 nmap 5.51 ntp-dev 4.2.5 open-fabrics 1.5.3 openexr 1.6.1 openldap 2.4.30 openscap 0.8.1 openssl 0.9.8q openssl 1.0.0j libopenusb 1.0.1 p7zip 9.20.1 pam_pkcs11 0.6.0 patch 2.5.9 pconsole 1.0 pcre 8.21 perl 5.12.4 DBI 1.58 Net-SSLeay 1.36 pmtools 1.10 XML-Parser 2.36 XML-Simple 2.18 PHP 5.2.17 PHP 5.3.14 pinentry 0.7.6 privoxy 3.0.17 proftpd 1.3.3 psutils p17 pv 1.2.0 pwgen 2.06 pylint 0.18.0 CherryPy 3.1.2 coverage 3.5 jsonrpclib 0.1.3 ldtp 2.1.1 M2Crypto 0.21.1 Mako 0.4.1 nose 1.1.2 ply 3.1 pybonjour 1.1.1 pycups 1.9.46 pycurl 7.19.0 lxml 2.3.3 pyOpenSSL 0.11 Python 2.6.8 Python 2.7.3 setuptools 0.6 quagga 0.99.19 quilt 0.60 rdiff-backup 1.3.3 readline 5.2 rpm2cpio 0.5.11 rsync 3.0.8 rsyslog 6.2.0 rtorrent 0.8.2 ruby 1.8.7 samba 3.6.6 sane-backends 1.0.19 sane-frontends 1.0.14 screen 4.0.3 sed 4.2.1 sendmail 8.14.5 slang 2.2.4 slib 3b1 slrn 0.9.9 snort 2.8.4.1 sox 14.3.2 spawn-fcgi 1.6.3 squid 3.1.18 stdcxx 4.2.1 subversion 1.7.5 sudo 1.8.4.5 swig 1.3.35 expect 5.45 tcl 8.5.9 tk 8.5.9 tls 1.6 tcpdump 4.1.1 tcsh 6.17.00 texinfo 4.7 tidy 1.0.0 timezone apache-tomcat 6.0.35 top 3.8beta1 trousers 0.3.6 unixODBC 2.3.0 unrar 4.1.4 unzip 6.0 vim 7.3 visual-panels wget 1.12 which 2.16 wireshark 1.8.2 wxGTK 2.8.12 xorriso 0.6.0 xz 5.0.1 zip 3.0 zlib 1.2.3 zsh 4.3.17

  Read the article

• C# Entity FrameWork MySQL Slow Queries Count()

  - by Matthew M.

  Hello, I'm having a serious issue with MySQL and Entity Framework 4.0. I have dropped a Table onto the EF Designer surface, and everything seems OK. However, when I perform a query in the following fashion: using(entityContext dc = new entityContext()) { int numRows = dc.myTable.Count(); } The query that is generated looks something like this: SELECT `GroupBy1`.`A1` AS `C1` FROM (SELECT Count(1) AS `A1` FROM (SELECT `pricing table`.`a`, `pricing table`.`b`, `pricing table`.`c`, `pricing table`.`d`, `pricing table`.`e`, `pricing table`.`f`, `pricing table`.`g`, `pricing table`.`h`, `pricing table`.`i` FROM `pricing table` AS `pricing table`) AS `Extent1`) AS `GroupBy1` As should be evident, this is an excruciatingly unoptimized query. It is selecting every single row! This is not optimal, nor is it even possible for me to use MySQL + EF at this point. I have tried both the MySQL 6.3.1 [that was fun to install] and DevArt's dotConnect for MySQL and both produce the same results. This table has 1.5 million records.. and takes 6-11s to execute! What am I doing wrong ? Is there any way to optimize this [and other queries] to produce sane code like: SELECT COUNT(*) FROM table ? Generating the same query using SQLServer takes virtually no time and produces sane code. Help! Thanks! Matthew

  Read the article

• Apples, oranges, and pointers to the most derived c++ class

  - by Matthew Lowe

  Suppose I have a bunch of fruit: class Fruit { ... }; class Apple : public Fruit { ... }; class Orange: public Fruit { ... }; And some polymorphic functions that operate on said fruit: void Eat(Fruit* f, Pesticide* p) { } void Eat(Apple* f, Pesticide* p) { ingest(f,p); } void Eat(Orange* f, Pesticide* p) { peel(f,p); ingest(f,p); } OK, wait. Stop right there. Note at this point that any sane person would make Eat() a virtual member function of the Fruit classes. But that's not an option, because I am not a sane person. Also, I don't want that Pesticide* in the header file for my fruit class. Sadly, what I want to be able to do next is exactly what member functions and dynamic binding allow: typedef list<Fruit*> Fruits; Fruits fs; ... for(Fruits::iterator i=fs.begin(), e=fs.end(); i!=e; ++i) Eat(*i); And obviously, the problem here is that the pointer we pass to Eat() will be a Fruit*, not an Apple* or an Orange*, therefore nothing will get eaten and we will all be very hungry. So what I really want to be able to do instead of this: Eat(*i); is this: Eat(MAGIC_CAST_TO_MOST_DERIVED_CLASS(*i)); But to my limited knowledge, such magic does not exist, except possibly in the form of a big nasty if-statement full of calls to dynamic_cast. So is there some run-time magic of which I am not aware? Or should I implement and maintain a big nasty if-statement full of dynamic_casts? Or should I suck it up, quit thinking about how I would implement this in Ruby, and allow a little Pesticide to make its way into my fruit header?

  Read the article

• Comparison of Hyper-V, Hyper-V Server, VMware ESXi, Xen and Parallels Bare Metal (Community Wiki)

  - by Andrew J. Brehm

  Can we use this question to collect information and the pros and cons of each of the above products? Specifically I am wondering whethere there is any sane reason to use Hyper-V (the role built into Windows Server) over Hyper-V server (the stand-alone product based on the same technology) and what exactly the differences are between ESXi, Xen and Hyper-V and why nobody seems to use Parallels Bare Metal. Make this a Community Wiki. I want comparisons, not reputation.

  Read the article

< Previous Page | 1 2 3 4 5 6 7 8 9 10 11  | Next Page >