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  • WPF Customized TabControl

    - by xsl
    I have to develop a customized tab control and decided to create it with WPF/XAML, because I planned to learn it anyway. It should look like this when it's finished: I made good progress so far, but there are two issues left: Only the first/last tab item should have a rounded upper-left/bottom-left corner. Is it possible to modify the style of these items, similar to the way I did with the selected tab item? The selected tab item should not have a border on its right side. I tried to accomplish this with z-index and overlapping, but the results were rather disappointing. Is there any other way to do this? XAML: <Window x:Class="MyProject.TestWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="TestWindow" Height="350" Width="500" Margin="5" Background="LightGray"> <Window.Resources> <Style TargetType="{x:Type TabControl}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type TabControl}"> <DockPanel> <Border Margin="0,100,-1,0" Background="#FFAAAAAA" BorderBrush="Gray" CornerRadius="7,0,0,7" BorderThickness="1"> <TabPanel Margin="0,0,0,0" IsItemsHost="True" /> </Border> <Border Background="WhiteSmoke" BorderBrush="Gray" BorderThickness="1" CornerRadius="7,7,7,0" > <ContentPresenter ContentSource="SelectedContent" /> </Border> </DockPanel> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type TabItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type TabItem}"> <Grid> <Border Name="Border" Background="#FFAAAAAA" CornerRadius="7,0,0,0" BorderBrush="Gray" BorderThickness="0,0,0,1" Margin="0,0,0,0"> <ContentPresenter x:Name="ContentSite" VerticalAlignment="Center" HorizontalAlignment="Left" ContentSource="Header" Margin="10,10,10,10"/> </Border> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter TargetName="Border" Property="Background" Value="WhiteSmoke" /> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> </Window.Resources> <Grid> <TabControl Name="_menuTabControl" TabStripPlacement="Left" Margin="5"> <TabItem Name="_tabItem1" Header="First Tab Item" ></TabItem> <TabItem Name="_tabItem2" Header="Second Tab Item" > <Grid /> </TabItem> <TabItem Name="_tabItem3" Header="Third Tab Item" > <Grid /> </TabItem> </TabControl> </Grid>

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  • Does anyone know how to layout a JToolBar that does't move or re-size any components placed in it?

    - by S1.Mac
    Can anyone help with this problem i'm trying to create a JToolBar and I want all its components to be fixed in size and position. I'v tried a few different layout managers but they all center and/or re-size the components when the frame its in is re-sized. here is an example using GridbagLayout, I have also used the default layout manager using the toolbar.add( component ) method but the result is the same : ' import java.awt.BorderLayout; import java.awt.Component; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import javax.swing.*; public class ToolBarTest extends JFrame { private JToolBar toolbar; private JPanel mainPanel; private JPanel toolBarPanel; private JButton aButton; private JCheckBox aCheckBox; private JList aList; private Box toolbarBox; private GridBagConstraints toolbarConstraints; private GridBagLayout toolbarLayout; private JLabel shapeLabel; private JComboBox<ImageIcon> shapeChooser; private JLabel colorLabel; private JComboBox colorChooser; private String colorNames[] = { "Black" , "Blue", "Cyan", "Dark Gray", "Gray", "Green", "Light Gray", "Magenta", "Orange", "Pink", "Red", "White", "Yellow", "Custom" }; private String shapeNames[] = { "Line", "Oval", "Rectangle", "3D Rectangle","Paint Brush", "Rounded Rectangle" }; public ToolBarTest() { setLayout( new BorderLayout() ); setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); setSize( 500, 500 ); add( createToolBar(), BorderLayout.PAGE_START ); setVisible( true ); } public void addToToolbar( Component component, int row, int column ) { toolbarConstraints.gridx = column; toolbarConstraints.gridy = row; toolbarConstraints.anchor = GridBagConstraints.WEST; toolbarConstraints.fill = GridBagConstraints.NONE; toolbarConstraints.weightx = 0; toolbarConstraints.weighty = 0; toolbarConstraints.gridwidth = 1; toolbarConstraints.gridheight = 1; toolbarLayout.setConstraints( component, toolbarConstraints ); toolbar.add( component ); }// end addToToolbar public final JToolBar createToolBar() { toolbarLayout = new GridBagLayout(); toolbarConstraints = new GridBagConstraints(); // create the tool bar which holds the items to draw toolbar = new JToolBar(); toolbar.setBorderPainted(true); toolbar.setLayout( toolbarLayout ); toolbar.setFloatable( true ); shapeLabel = new JLabel( "Shapes: " ); addToToolbar( shapeLabel, 0, 1 ); String iconNames[] = { "PaintImages/Line.jpg", "PaintImages/Oval.jpg", "PaintImages/Rect.jpg", "PaintImages/3DRect.jpg","PaintImages/PaintBrush.jpg", "PaintImages/RoundRect.jpg"}; ImageIcon shapeIcons[] = new ImageIcon[ shapeNames.length ]; // create image icons for( int shapeButton = 0; shapeButton < shapeNames.length; shapeButton++ ) { shapeIcons[ shapeButton ] = new ImageIcon( iconNames[ shapeButton ] ); }// end for shapeChooser = new JComboBox< ImageIcon >( shapeIcons ); shapeChooser.setSize( new Dimension( 50, 20 )); shapeChooser.setPrototypeDisplayValue( shapeIcons[ 0 ] ); shapeChooser.setSelectedIndex( 0 ); addToToolbar( shapeChooser, 0, 2 ); colorLabel = new JLabel( "Colors: " ); addToToolbar( colorLabel, 0, 3 ); colorChooser = new JComboBox( colorNames ); addToToolbar( colorChooser, 0, 4 ); return toolbar; }// end createToolBar public static void main( String args[] ) { new ToolBarTest(); }// end main }// end class ToolBarTest'

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  • Transform your Oracle Tutor Documents to Your Corporate Standard

    - by mary.keane
    You have all of your company's processes documented in Oracle Tutor, and now you want to get the HTML files to reflect your company's corporate look and feel. How are you going to do this without having an HTML guru to change every HTML page? The good news is you do not need to be an HTML expert to make minor changes to your documents. All Tutor HTML files are attached to a group of style sheets, so any changes you make to the style sheets will immediately be reflected in all of your HTML documents. If you want to give it a try, here's what you do (please note that these tips are applicable to release Oracle Tutor 12.2 and greater): Navigate to your Tutor HTML directory, and copy into a draft folder a representative group of HTML files (don't forget the flowchart image files that are associated with the procedures). You'll also need to copy the following files: tutor.css tutor_notabs.css tutor_scripts.js tutor_tabs.css flow_icon.gif Here's the default look to the Oracle Tutor desk manual. Let's say I want to use my company's corporate style in the HTML documents. At Oracle, we use Oracle Red (FF0000), Oracle Black (000000), and Oracle Gray (666666). So I want to incorporate those colors into the Tutor HTML files. I open tutor.css from the draft folder in a text editor. My preference is to use Notepad, but there are others. Make sure, however, that it is a text editor, and not a word processing program. I want to change the headings to Oracle Red. The desk manual title is listed as the DMPAGETITLE, so I find that in tutor.css. The style names in the style sheets are descriptive, but sometimes you may have to experiment to find the right style (this is why you're working in a draft folder). I change the color attribute to FF00000, and then I save the document. Now I look at one of the desk manuals in my draft folder. I've successfully changed the title of the desk manual, so, now that I have more confidence that I can do this, I start changing other styles. I need to make changes in the tutor_tabs.css file as well, so I open that document. Then I look at one of the procedures. Oops! All that red is distracting, and the users may not be able to follow their procedures. So I go back to the corporate style guide, and I find some shades of gray that have been approved. So I use that, and it is now more readable. It's good enough for a first draft, and I would show it to my colleagues at this point to get their input. On my next blog, I'll discuss how to change the flowchart colors to match your corporate look and feel. Have you used the cascading styles sheets to change the look of your Tutor documents? If so, let us know what you've done in your post. Mary R. Keane Senior Development Manager, Oracle Tutor & UPK Content

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  • Math with Timestamp

    - by Knut Vatsendvik
    table.sql { border-width: 1px; border-spacing: 2px; border-style: dashed; border-color: #0023ff; border-collapse: separate; background-color: white; } table.sql th { border-width: 1px; padding: 1px; border-style: none; border-color: gray; background-color: white; -moz-border-radius: 0px 0px 0px 0px; } table.sql td { border-width: 1px; padding: 3px; border-style: none; border-color: gray; background-color: white; -moz-border-radius: 0px 0px 0px 0px; } .sql-keyword { color: #0000cd; background-color: inherit; } .sql-result { color: #458b74; background-color: inherit; } Got this little SQL quiz from a colleague.  How to add or subtract exactly 1 second from a Timestamp?  Sounded simple enough at first blink, but was a bit trickier than expected. If the data type had been a Date, we knew that we could add or subtract days, minutes or seconds using + or – sysdate + 1 to add one day sysdate - (1 / 24) to subtract one hour sysdate + (1 / 86400) to add one second Would the same arithmetic work with Timestamp as with Date? Let’s test it out with the following query SELECT   systimestamp , systimestamp + (1 / 86400) FROM dual; ---------- 03.05.2010 22.11.50,240887 +02:00 03.05.2010 The first result line shows us the system time down to fractions of seconds. The second result line shows the result as Date (as used for date calculation) meaning now that the granularity is reduced down to a second.   By using the PL/SQL dump() function, we can confirm this with the following query SELECT   dump(systimestamp) , dump(systimestamp + (1 / 86400)) FROM dual; ---------- Typ=188 Len=20: 218,7,5,4,8,53,9,0,200,46,89,20,2,0,5,0,0,0,0,0 Typ=13 Len=8: 218,7,5,4,10,53,10,0 Where typ=13 is a runtime representation for Date. So how can we increase the precision to include fractions of second? After investigating it a bit, we found out that the interval data type INTERVAL DAY TO SECOND could be used with the result of addition or subtraction being a Timestamp. Let’s try again our first query again, now using the interval data type. SELECT systimestamp,    systimestamp + INTERVAL '0 00:00:01.0' DAY TO SECOND(1) FROM dual; ---------- 03.05.2010 22.58.32,723659000 +02:00 03.05.2010 22.58.33,723659000 +02:00 Yes, it worked! To finish the story, here is one example showing how to specify an interval of 2 days, 6 hours, 30 minutes, 4 seconds and 111 thousands of a second. INTERVAL ‘2 6:30:4.111’ DAY TO SECOND(3)

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  • Grub2 : Windows 7 can't boot installing with Ubuntu 10.04 on different hard drive

    - by dellphi
    I use a dual boot with two hard disks and two OS is Ubuntu 10.04 and Windows 7. Windows 7 installed on the first disk, first partition. Grub is installed on a second hard disk MBR, and Ubuntu installed on an extended partition on a second hard drive. When I select Windows 7 on the Grub menu, the HDD lamp lights up briefly and then black screen on the monitor, with the status of the keyboard is still functioning. Until now (with the default boot from first HDD), I have to press F12 to get into the Grub to run Linux on a second HDD. ================ fdisk -l ================================ dellph1@dellph1-desktop:~$ fdisk -l omitting empty partition (5) Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00087dec Device Boot Start End Blocks Id System /dev/sda1 * 1 23104 185582848+ 7 HPFS/NTFS /dev/sda2 23105 121601 791177122 5 Extended /dev/sda5 36107 74408 307660783+ 7 HPFS/NTFS /dev/sda6 74409 100081 206218341 7 HPFS/NTFS /dev/sda7 100082 121601 172859368+ 7 HPFS/NTFS Disk /dev/sdb: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x6d43dfb2 Device Boot Start End Blocks Id System /dev/sdb1 1 10030 80560066 5 Extended /dev/sdb5 * 1 5560 44657601 83 Linux /dev/sdb6 5560 9387 30736384 83 Linux /dev/sdb7 9387 10030 5164032 82 Linux swap / Solaris dellph1@dellph1-desktop:~$ ================= grub.cfg ================== # DO NOT EDIT THIS FILE # It is automatically generated by /usr/sbin/grub-mkconfig using templates from /etc/grub.d and settings from /etc/default/grub # BEGIN /etc/grub.d/00_header if [ -s $prefix/grubenv ]; then load_env fi set default="0" if [ ${prev_saved_entry} ]; then set saved_entry=${prev_saved_entry} save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z ${boot_once} ]; then saved_entry=${chosen} save_env saved_entry fi } function recordfail { set recordfail=1 if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi } insmod ext2 set root='(hd1,5)' search --no-floppy --fs-uuid --set 2f014a3a-35f3-4d05-87aa-34ca677160b7 if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=1024x768 insmod gfxterm insmod vbe if terminal_output gfxterm ; then true ; else # For backward compatibility with versions of terminal.mod that don't # understand terminal_output terminal gfxterm fi fi insmod ext2 set root='(hd1,5)' search --no-floppy --fs-uuid --set 2f014a3a-35f3-4d05-87aa-34ca677160b7 set locale_dir=($root)/boot/grub/locale set lang=en insmod gettext if [ ${recordfail} = 1 ]; then set timeout=-1 else set timeout=5 fi END /etc/grub.d/00_header BEGIN /etc/grub.d/05_debian_theme insmod ext2 set root='(hd1,5)' search --no-floppy --fs-uuid --set 2f014a3a-35f3-4d05-87aa-34ca677160b7 insmod jpeg if background_image /usr/share/backgrounds/CurlsbyCandy.jpg ; then set color_normal=white/black set color_highlight=black/light-gray else set menu_color_normal=white/black set menu_color_highlight=black/light-gray fi END /etc/grub.d/05_debian_theme BEGIN /etc/grub.d/10_linux menuentry 'Ubuntu, with Linux 2.6.32-24-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod ext2 set root='(hd1,5)' search --no-floppy --fs-uuid --set 2f014a3a-35f3-4d05-87aa-34ca677160b7 linux /boot/vmlinuz-2.6.32-24-generic root=UUID=2f014a3a-35f3-4d05-87aa-34ca677160b7 ro splash vga=795 quiet splash nomodeset video=uvesafb:mode_option=1280x1024-24,mtrr=3,scroll=ywrap initrd /boot/initrd.img-2.6.32-24-generic } menuentry 'Ubuntu, with Linux 2.6.32-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod ext2 set root='(hd1,5)' search --no-floppy --fs-uuid --set 2f014a3a-35f3-4d05-87aa-34ca677160b7 echo 'Loading Linux 2.6.32-24-generic ...' linux /boot/vmlinuz-2.6.32-24-generic root=UUID=2f014a3a-35f3-4d05-87aa-34ca677160b7 ro single splash vga=795 echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.32-24-generic } END /etc/grub.d/10_linux BEGIN /etc/grub.d/30_os-prober menuentry "Windows 7 (loader) (on /dev/sda1)" { insmod ntfs set root='(hd0,1)' search --no-floppy --fs-uuid --set 5cac2139ac210f58 chainloader +1 } END /etc/grub.d/30_os-prober BEGIN /etc/grub.d/40_multisystem Ajout de MultiSystem MULTISYSTEM MENU menuentry "PLoP Boot Manager" { linux16 /boot/plpbt } menuentry "Smart Boot Manager" { search --set -f /boot/sbootmgr.dsk linux16 /boot/memdisk initrd16 /boot/sbootmgr.dsk } FIN MULTISYSTEM MENU END /etc/grub.d/40_multisystem ================================================ I want to keep the Grub on the second HDD. I have been using the Startup Manager, Boot Manager and Grub Customizer, and this problem still unsolved. The easiest thing that I can possibly do is to install Grub on first HDD, but I was curious and maybe someone can help.

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  • Set UIViewController background to transparent

    - by dbonneville
    I'm calling a UIViewController from a button on the main view. I have set the alpha of the view to 50%. When the view animates in, I can see that it's transparent. As soon as the animation stops, it becomes opaque. In the xib, when I set opacity, it's sets the opacity over white. So if I set the color to black and the opacity to 50%, this is what I see when I click the button on the main interface to show the view: view slides up from bottom at 50% opacity. I can see the underlaying view through the transparent black nicely. when view stops animating, it become gray. it appears that a white color pops in the background of the view somehow, making the 50% opacity black over white turn gray. I can no longer see the underlaying layer. What I'm trying to do: show 100% white text on a 50% transparent black layer which sits over the view that called this view. How on earth do I do this? I tried a code method that sets the background color when the view is called, but it does exactly the same thing (with another try in there commented out with the same effect): - (IBAction)gotoCreed { Creed *creed = [[Creed alloc] initWithNibName:nil bundle:nil]; [self presentModalViewController:creed animated:YES]; self.view.backgroundColor = [UIColor colorWithHue:0.0 saturation:0.0 brightness:1.0 alpha:0.2]; //self.view.backgroundColor = [UIColor clearColor]; }

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  • DEVX Web chart control

    - by Minal
    i am using DEVX Webchart control.. Bind x-Axis values: <dxchartsui:WebChartControl ID="ChartOPCGraph" runat="server" Height="400px" Width="700px" ClientInstanceName="ChartOPCGraph" DiagramTypeName="XYDiagram"> <Diagram> <axisy> <gridlines visible="False"></gridlines> </axisy> </Diagram> <Titles> <cc1:ChartTitle Dock="Bottom" Font="Tahoma, 8pt" Text="Days" TextColor="Gray" Alignment="Center"> </cc1:ChartTitle> <cc1:ChartTitle Dock="Left" Font="Tahoma, 8pt" Text="% Payment made" TextColor="Gray" Alignment="Center"></cc1:ChartTitle> </Titles> </dxchartsui:WebChartControl> values are being populated from database. On x-axis only two number comes from database so i need to bind only these two values and rest of them must not be visible. For example i get 9 number from database and it binds 8.6,8.7,8.8,8.9,9,9.2,...... Need a quick reply..

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  • UIImage cropping on user selected rectangle in iphone?

    - by Rajendra Bhole
    Hi, I developing an small application in which i want to crop the UIImage captured by imagePickerControllerSourceTypeOfCamera. The UIImage should crop by user selected crop area or cropped rectangle. That means first user capture the image from the camera.Then on captured image the user selected an rectangle having color gray.That image(image data) should crop from that gray colored rectangle. My under develop code is as follows. -(IBAction) getPhoto:(id)sender { UIImagePickerController* imagePickerController = [[UIImagePickerController alloc] init]; imagePickerController.delegate = self; if((UIButton *) sender == btnphotoAlbum) { imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; } else { imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; } imagePickerController.allowsImageEditing = YES; //imagePickerController.toolbar.barStyle =UIBarStyleBlackOpaque; //UIToolbar *toolBar=[[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 20, 320)]; //imagePickerController. [self presentModalViewController:imagePickerController animated:YES]; } (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo { UIImage *selectedImage = image; UIImage *originalImage = [editingInfo objectForKey:@"UIImagePickerControllerOriginalImage"]; NSValue *cropRect = [editingInfo objectForKey:UIImagePickerControllerCropRect]; CGRect theRect = [cropRect CGRectValue]; //captureImage.image =[info objectForKey:@"UIImagePickerControllerOriginalImage"]; [picker dismissModalViewControllerAnimated:YES]; } How i crop the image?

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  • Double buffering with C# has negative effect

    - by Roland Illig
    I have written the following simple program, which draws lines on the screen every 100 milliseconds (triggered by timer1). I noticed that the drawing flickers a bit (that is, the window is not always completely blue, but some gray shines through). So my idea was to use double-buffering. But when I did that, it made things even worse. Now the screen was almost always gray, and only occasionally did the blue color come through (demonstrated by timer2, switching the DoubleBuffered property every 2000 milliseconds). What could be an explanation for this? using System; using System.Drawing; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Paint(object sender, PaintEventArgs e) { Graphics g = CreateGraphics(); Pen pen = new Pen(Color.Blue, 1.0f); Random rnd = new Random(); for (int i = 0; i < Height; i++) g.DrawLine(pen, 0, i, Width, i); } // every 100 ms private void timer1_Tick(object sender, EventArgs e) { Invalidate(); } // every 2000 ms private void timer2_Tick(object sender, EventArgs e) { DoubleBuffered = !DoubleBuffered; this.Text = DoubleBuffered ? "yes" : "no"; } } }

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  • Nested table height in TCPDF

    - by Kuroki Kaze
    Is it possible to make nested table fit height of its parent cell in TCPDF? My code: <?php require_once('tcpdf/config/lang/eng.php'); require_once('tcpdf/tcpdf.php'); $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); $pdf->setPrintHeader(false); $pdf->setPrintFooter(false); $pdf->SetFont('times', 'BI', 8); $pdf->AddPage(); $pdf->writeHTML('<table> <tr><td bgcolor="gray"> Angoisse et vif espoir, sans humeur factieuse.<br/> Plus allait se vidant le fatal sablier,<br/> Plus ma torture était âpre et délicieuse;<br/> Tout mon coeur s’arrachait au monde familier</td> <td bgcolor="lightgray">Second</td> <td bgcolor="gray">Third</td> <td> <table style="height: 100%"> <tr bgcolor="blue" style="height: 30%"><td bgcolor="yellow" style="height: 30%">Ichi</td></tr> <tr bgcolor="white" style="height: 30%"><td bgcolor="cyan" style="height: 30%">Ni</td></tr> <tr bgcolor="blue" style="height: 30%"><td bgcolor="yellow" style="height: 30%">San</td></tr> </table> </td></tr> </table>'); $pdf->Output('example_002.pdf', 'I'); ?> I want table in last cell to fill it entirely. Is there any way to do this?

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  • Latex: Listings with monospace fonts

    - by Nils
    This is what the code looks in Xcode. And this in my listing created with texlive. And yes I used basicstyle=\ttfamily . Having looked at the manual of listings I haven't found anything about fixed-with or monospace fonts.. Example to reproduce \documentclass[ article, a4paper, a4wide, %draft, smallheadings ]{book} % Packages below \usepackage{graphicx} \usepackage{verbatim} % used to display code \usepackage{hyperref} \usepackage{fullpage} \usepackage[ansinew]{inputenc} % german umlauts \usepackage[usenames,dvipsnames]{color} \usepackage{float} \usepackage{subfig} \usepackage{tikz} \usetikzlibrary{calc,through,backgrounds} \usepackage{fancyvrb} \usepackage{acronym} \usepackage{amsthm} % Uuhhh yet another package \VerbatimFootnotes % Required, otherwise verbatim does not work in footnotes! \usepackage{listings} \definecolor{Brown}{cmyk}{0,0.81,1,0.60} \definecolor{OliveGreen}{cmyk}{0.64,0,0.95,0.40} \definecolor{CadetBlue}{cmyk}{0.62,0.57,0.23,0} \definecolor{lightlightgray}{gray}{0.9} \begin{document} \lstset{ language=C, % Code langugage basicstyle=\ttfamily, % Code font, Examples: \footnotesize, \ttfamily keywordstyle=\color{OliveGreen}, % Keywords font ('*' = uppercase) commentstyle=\color{gray}, % Comments font numbers=left, % Line nums position numberstyle=\tiny, % Line-numbers fonts stepnumber=1, % Step between two line-numbers numbersep=5pt, % How far are line-numbers from code backgroundcolor=\color{lightlightgray}, % Choose background color frame=none, % A frame around the code tabsize=2, % Default tab size captionpos=b, % Caption-position = bottom breaklines=true, % Automatic line breaking? breakatwhitespace=false, % Automatic breaks only at whitespace? showspaces=false, % Dont make spaces visible showtabs=false, % Dont make tabls visible columns=flexible, % Column format morekeywords={__global__, __device__}, % CUDA specific keywords } \begin{lstlisting} As[threadRow][threadCol] = A[ threadCol + threadRow * Awidth // Adress of the thread in the current block + i * BLOCK_SIZE // Pick a block further left for i+1 + blockRow * BLOCK_SIZE * Awidth // for blockRow +1 go one blockRow down ]; \end{lstlisting} \end{document}

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  • openCV Won't copy to image after changed color ( opencv and c++ )

    - by user1656647
    I am a beginner at opencv. I have this task: Make a new image Put a certain image in it at 0,0 Convert the certain image to gray scale put the grayscaled image next to it ( at 300, 0 ) This is what I did. I have a class imagehandler that has constructor and all the functions. cv::Mat m_image is the member field. Constructor to make new image: imagehandler::imagehandler(int width, int height) : m_image(width, height, CV_8UC3){ } Constructor to read image from file: imagehandler::imagehandler(const std::string& fileName) : m_image(imread(fileName, CV_LOAD_IMAGE_COLOR)) { if(!m_image.data) { cout << "Failed loading " << fileName << endl; } } This is the function to convert to grayscale: void imagehandler::rgb_to_greyscale(){ cv::cvtColor(m_image, m_image, CV_RGB2GRAY); } This is the function to copy paste image: //paste image to dst image at xloc,yloc void imagehandler::copy_paste_image(imagehandler& dst, int xLoc, int yLoc){ cv::Rect roi(xLoc, yLoc, m_image.size().width, m_image.size().height); cv::Mat imageROI (dst.m_image, roi); m_image.copyTo(imageROI); } Now, in the main, this is what I did : imagehandler CSImg(600, 320); //declare the new image imagehandler myimg(filepath); myimg.copy_paste_image(CSImg, 0, 0); CSImg.displayImage(); //this one showed the full colour image correctly myimg.rgb_to_greyscale(); myimg.displayImage(); //this shows the colour image in GRAY scale, works correctly myimg.copy_paste_image(CSImg, 300, 0); CSImg.displayImage(); // this one shows only the full colour image at 0,0 and does NOT show the greyscaled one at ALL! What seems to be the problem? I've been scratching my head for hours on this one!!!

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  • nth child selector in jquery

    - by Praveen Prasad
    <table width="600px" id='testTable'> <tr class="red"><td>this</td></tr> <tr><td>1</td></tr> <tr><td>1</td></tr> <tr><td>1</td></tr> <tr class="red"><td>1</td></tr> <tr><td>1</td></tr> <tr><td>1</td></tr> <tr class="red"><td>this</td></tr> <tr><td>1</td></tr> <tr><td>1</td></tr> <tr class="red"><td>1</td></tr> <tr><td>1</td></tr> <tr><td>1</td></tr> </table> .gray { background-color:#dddddd; } .red { color:Red; } $(function () { $('#testTable tr.red:nth-child(odd)').addClass('gray'); //this should select tr's with text=this, but its not happening }); i want to select all odds inside table which have class=red , but its not happening. please help

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  • java 2D and swing

    - by user384706
    Hi, I have trouble understanding a fundamental concept in Java 2D. To give a specific example: One can customize a swing component via implementing it's own version of the method paintComponent(Graphics g) Graphics is available to the body of the method. Question: What is exactly this Graphics object, I mean how it is related to the object that has the method paintComponent? Ok, I understand that you can do something like: g.setColor(Color.GRAY); g.fillOval(0, 0, getWidth(), getHeight()); To get a gray oval painted. What I can not understand is how is the Graphics object related to the component and the canvas. How is this drawing actually done? Another example: public class MyComponent extends JComponent { protected void paintComponent(Graphics g) { System.out.println("Width:"+getWidth()+", Height:"+getHeight()); } public static void main(String args[]) { JFrame f = new JFrame("Some frame"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setSize(200, 90); MyComponent component = new MyComponent (); f.add(component); f.setVisible(true); } } This prints Width:184, Height:52 What does this size mean? I have not added anything to the frame of size(200,90). Any help on this is highly welcome Thanks

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  • positioning text/image with a border

    - by user167487
    Learning html/css, having trouble with positioning text and or images within a border on a page exactly where i want them. I'm first trying to stack them underneath each other vertically, but i dont know how to move each box underneath, at the moment they are stacking horizontally until they go over the max width, what do i do? HTML: <div id="column1"> <p>blah blah blah</p> </div> <div id="column2"> <p>blah blah blah</p> </div> <div id="column3"> <p>blah blah blah</p> </div> CSS: p { font-family: Tahoma; font-size: 14px; margin: 1px; padding: 10px; text-align: left; background-color: white; width: 800px; } #column1 {float: left; position: relative; width: 200px; padding: 3px; background: gray ; top: 10px;margin: 1px; } #column2 {float: left; position: relative; width: 200px; padding: 3px; background: orange; top:50px;margin: 1px; } #column3 {float: left; position: relative; width: 200px; padding: 3px; background: gray; top: 100px;margin: 1px; }

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  • jQuery UI slider coming out looking wierd

    - by jondavidjohn
    http://cl.ly/2W1V3s0G2G3y3D133I3U <--screenshot of rendered slider It acts normally by clicking the inner whitespace of the slider and dragging, values act accordingly, but the handles do not move and fill the area, and the line at the top grows/shrinks with the difference of the two values. Here is the code I am using to initiate the slider. $('.sliderific').each(function(){ alert($(this).attr('id')); $(this).slider({ range: true, min: 0, max: 500, values: [ 75, 300 ], slide: function( event, ui ) { $(this).nextAll('.left:first').text(ui.values[ 0 ]); $(this).nextAll('.right:first').text(ui.values[ 1 ]); } }); }); and here is the DOM it's being applied to... <div class="white notwide"> <div id="price-slider" class="sliderific"></div> <span class="em small gray left center">Min Price</span> <span class="em small gray right center">Max Price </span> </div> EDIT : Also, I have verified I am including the proper css and the jquery theme images are connecting and being loaded.

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  • iPhone Rendering Question

    - by slythic
    Hi all, I'm new to iPhone/Objective-C development. I "jumped the gun" and started reading and implementing some chapters from O'Reilly's iPhone Development. I was following the ebook's code exactly and my code was generating the following error: CGContextSetFillColorWithColor: invalid context CGContextFillRects: invalid context CGContextSetFillColorWithColor: invalid context CGContextGetShouldSmoothFonts: invalid context However, when I downloaded the sample code for the same chapter the code is different. Book Code: - (void) Render { CGContextRef g = UIGraphicsGetCurrentContext(); //fill background with gray CGContextSetFillColorWithColor(g, [UIColor grayColor].CGColor); CGContextFillRect(g, CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)); //draw text in black. CGContextSetFillColorWithColor(g, [UIColor blackColor].CGColor); [@"O'Reilly Rules!" drawAtPoint:CGPointMake(10.0, 20.0) withFont:[UIFont systemFontOfSize:[UIFont systemFontSize]]]; } Actual Project Code from the website (works): - (void) Render { [self setNeedsDisplay]; //this sets up a deferred call to drawRect. } - (void)drawRect:(CGRect)rect { CGContextRef g = UIGraphicsGetCurrentContext(); //fill background with gray CGContextSetFillColorWithColor(g, [UIColor grayColor].CGColor); CGContextFillRect(g, CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)); //draw text in black. CGContextSetFillColorWithColor(g, [UIColor blackColor].CGColor); [@"O'Reilly Rules!" drawAtPoint:CGPointMake(10.0, 20.0) withFont:[UIFont systemFontOfSize:[UIFont systemFontSize]]]; } What is it about these lines of code that make the app render correctly? - (void) Render { [self setNeedsDisplay]; //this sets up a deferred call to drawRect. } - (void)drawRect:(CGRect)rect { Thanks in advance for helping out a newbie!

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  • Android: changing drawable states of option menu items seems to have side-effects

    - by pjv
    In my onCreateOptionsMenu() I have basically the following: public boolean onCreateOptionsMenu(Menu menu) { menu.add(Menu.NONE, MENU_ITEM_INSERT, Menu.NONE, R.string.item_menu_insert).setShortcut('3', 'a').setIcon(android.R.drawable.ic_menu_add); PackageManager pm = getPackageManager(); if(pm.hasSystemFeature(PackageManager.FEATURE_CAMERA) && pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_AUTOFOCUS)){ menu.add(Menu.NONE, MENU_ITEM_SCAN_ADD, Menu.NONE, ((Collectionista.DEBUG)?"DEBUG Scan and add item":getString(R.string.item_menu_scan_add))).setShortcut('4', 'a').setIcon(android.R.drawable.ic_menu_add); } ... } And in onPrepareOptionsMenu among others the following: final boolean scanAvailable = ScanIntent.isInstalled(this); final MusicCDItemScanAddTask task = new MusicCDItemScanAddTask(this); menu.findItem(MENU_ITEM_SCAN_ADD).setEnabled(scanAvailable && (tasks == null || !existsTask(task))); As you see, two options items have the same drawable set (android.R.drawable.ic_menu_add). Now, if in onPrepareOptionsMenu the second menu item gets disabled, its label and icon become gray, but also the icon of the first menu item becomes gray, while the label of that fist menu item stays black and it remains clickable. What is causing this crosstalk between the two icons/drawables? Shouldn't the system handle things like mutate() in this case? I've included a screenshot:

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  • what is problem in the following matlab codes

    - by raju
    img=imread('img27.jpg'); %function rectangle=rect_test(img) % edge detection [gx,gy]=gradient(img); gx=abs(gx); gy=abs(gy); g=gx+gy; g=abs(g); % make it 300x300 img=zeros(300); s=size(g); img(1:s(1),1:s(2))=g; figure; imagesc((img)); colormap(gray); title('Edge detection') % take the dct of the image IM=abs(dct2(img)); figure; imagesc((IM)); colormap(gray); title('DCT') % normalize m=max(max(IM)); IM2=IM./m*100; % get rid of the peak size_IM2=size(IM2); IM2(1:round(.05*size_IM2(1)),1:round(.05*size_IM2(2))) = 0; % threshold L=length( find(IM2>20)) ; if( L > 60 ) ret = 1; else ret = 0; end

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  • NSTableView selection & highlights

    - by Christian
    I have a NSTableView as a very central part of my Application and want it to integrate more with the rest of it. It has only one column (it's a list) and I draw all Cells (normal NSTextFieldCells) myself. The first problem is the highlighting. I draw the highlight myself and want to get rid of the blue background. I now fill the whole cell with the original background color to hide the blue background, but this looks bad when dragging the cell around. I tried overriding highlight:withFrame:inView: and highlightColorWithFrame:inView: of NSCell but nothing happened. How can I disable automatic highlighting? I also want all rows/cells to be deselected when I click somewhere outside my NSTableView. Since the background / highlight of the selected cell turns gray there must be an event for this, but I can't find it. I let my cells expand on a double click and may need to undo this. So getting rid of the gray highlight is not enough. EDIT: I add a subview to the NSTableView when a cell gets double clicked and then resignFirstResponder of the NSTableView gets called. I tried this: - (BOOL)resignFirstResponder { if (![[self subviews] containsObject:[[self window] firstResponder]]) { [self deselectAll:self]; ... } return YES; } Besides that it's not working I would need to implement this method for all objects in the view hierarchy. Is there an other solution to find out when the first responder leaves a certain view hierarchy?

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  • iPhone:How to make navigation top bar style to same like "Black Navigation Bar" programmatically?

    - by Getsy
    I have a Navigation project which has only a TableView. By default, i could see the navigation bar there when running the application. I want to change the navigation bar style to same like if we see in I.B there is one called "Top Bar" which has "Black Navigation Bar" style (Which shows Black navigation top bar but some kind of Gray shade will be there). I want the same in my navigation bar now, not any other color or style. How do i fix it? Note: 1. I used "self.navigationController.navigationBar.barStyle = UIBarStyleBlack;" , but it shows the navigation bar in utter black color. I don't want that, i want some kind of Gray shade in black, similar to "Top Bar" which has "Black Navigation Bar". I tried some tint color addition to the above, like "self.navigationController.navigationBar.tintColor = [UIColor grayColor];" but i observe the same utter black shows in navigation bar. I tried "navigationBar.barStyle = UIBarStyleBlackTranslucent;" but it doesn't fit and show with status bar properly. Instead it overlaps(hidden) half black with status bar and half black shows outside. Could someone teach me? Thank you.

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  • How Are These Styles Cascading?

    - by user1569275
    Problem is viewable at this link. http://dansdemos.info/prototypes/htmlSamples/responsive/step08_megaGridForward.html The three boxes need to have green backgrounds, but another style is taking precedence. I thought styles were supposed to take precedence based on where they appear in the style sheets, with styles lower in the style sheet cascading (taking precedence) over styles higher in the style sheet. I guess that is wrong, because the style sheet for the background colors of those boxes is here: #maincontent .col { background: #ccc; background: rgba(204, 204, 204, 0.85); } #callout1 { background-color: #00B300; text-align:center; } #callout2 { background-color: #00CC00; text-align:center; } #callout3 { background-color: #00E600; text-align:center; } When the style for "#maincontent .col" is removed, the green shows up (link)http://dansdemos.info/prototypes/htmlSamples/responsive/step08_megaGridForwardGreen.html, but I thought the green should show up because it is after the gray color specified higher up. I am finding a way to get what I need, but it would really make it a lot easier if I understood why the backgrounds are gray, instead of green. Any assistance would be extremely much appreciated. Thank you.

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  • Designing for the future

    - by Dennis Vroegop
    User interfaces and user experience design is a fast moving field. It’s something that changes pretty quick: what feels fresh today will look outdated tomorrow. I remember the day I first got a beta version of Windows 95 and I felt swept away by the user interface of the OS. It felt so modern! If I look back now, it feels old. Well, it should: the design is 17 years old which is an eternity in our field. Of course, this is not limited to UI. Same goes for many industries. I want you to think back of the cars that amazed you when you were in your teens (if you are in your teens then this may not apply to you). Didn’t they feel like part of the future? Didn’t you think that this was the ultimate in designs? And aren’t those designs hopelessly outdated today (again, depending on your age, it may just be me)? Let’s review the Win95 design: And let’s compare that to Windows 7: There are so many differences here, I wouldn’t even know where to start explaining them. The general feeling however is one of more usability: studies have shown Windows 7 is much easier to understand for new users than the older versions of Windows did. Of course, experienced Windows users didn’t like it: people are usually afraid of changes and like to stick to what they know. But for new users this was a huge improvement. And that is what UX design is all about: make a product easier to use, with less training required and make users feel more productive. Still, there are areas where this doesn’t hold up. There are plenty examples of designs from the past that are still fresh today. But if you look closely at them, you’ll notice some subtle differences. This differences are what keep the designs fresh. A good example is the signs you’ll find on the road. They haven’t changed much over the years (otherwise people wouldn’t recognize them anymore) but they have been changing gradually to reflect changes in traffic. The same goes for computer interfaces. With each new product or version of a product, the UI and UX is changed gradually. Every now and then however, a bigger change is needed. Just think about the introduction of the Ribbon in Microsoft Office 2007: the whole UI was redesigned. A lot of old users (not in age, but in times of using older versions) didn’t like it a bit, but new users or casual users seem to be more efficient using the product. Which, of course, is exactly the reason behind the changes. I believe that a big engine behind the changes in User Experience design has been the web. In the old days (i.e. before the explosion of the internet) user interface design in Windows applications was limited to choosing the margins between your battleship gray buttons. When the web came along, and especially the web 2.0 where the browsers started to act more and more as application platforms, designers stepped in and made a huge impact. In the browser, they could do whatever they wanted. In the beginning this was limited to the darn blink tag but gradually people really started to think about UX. Even more so: the design of the UI and the whole experience was taken away from the developers and put into the hands of people who knew what they were doing: UX designers. This caused some problems. Everyone who has done a web project in the early 2000’s must have had the same experience: the designers give you a set of Photoshop files and tell you to translate it to HTML. Which, of course, is very hard to do. However, with new tooling and new standards this became much easier. The latest version of HTML and CSS has taken the responsibility for the design away from the developers and placed them in the capable hands of the designers. And that’s where that responsibility belongs, after all, I don’t want a designer to muck around in my c# code just as much as he or she doesn’t want me to poke in the sites style definitions. This change in responsibilities resulted in good looking but more important: better thought out user interfaces in websites. And when websites became more and more interactive, people started to expect the same sort of look and feel from their desktop applications. But that didn’t really happen. Most business applications still have that battleship gray look and feel. Ok, they may use a different color but we’re not talking colors here but usability. Now, you may not be able to read the Dutch captions, but even if you did you wouldn’t understand what was going on. At least, not when you first see it. You have to scan the screen, read all the labels, see how they are related to the other elements on the screen and then figure out what they do. If you’re an experienced user of this application however, this might be a good thing: you know what to do and you get all the information you need in one single screen. But for most applications this isn’t the case. A lot of people only use their computer for a limited time a day (a weird concept for me, but it happens) and need it to get something done and then get on with their lives. For them, a user interface experience like the above isn’t working. (disclaimer: I just picked a screenshot, I am not saying this is bad software but it is an example of about 95% of the Windows applications out there). For the knowledge worker, this isn’t a problem. They use one or two systems and they know exactly what they need to do to achieve their goal. They don’t want any clutter on their screen that distracts them from their task, they just want to be as efficient as possible. When they know the systems they are very productive. The point is, how long does it take to become productive? And: could they be even more productive if the UX was better? Are there things missing that they don’t know about? Are there better ways to achieve what they want to achieve? Also: could a system be designed in such a way that it is not only much more easy to work with but also less tiring? in the example above you need to switch between the keyboard and mouse a lot, something that we now know can be very tiring. The goal of most applications (being client apps or websites on any kind of device) is to provide information. Information is data that when given to the right people, on the right time, in the right place and when it is correct adds value for that person (please, remember that definition: I still hear the statement “the information was wrong” which doesn’t make sense: data can be wrong, information cannot be). So if a system provides data, how can we make sure the chances of becoming information is as high as possible? A good example of a well thought-out system that attempts this is the Zune client. It is a very good application, and I think the UX is much better than it’s main competitor iTunes. Have a look at both: On the left you see the iTunes screenshot, on the right the Zune. As you notice, the Zune screen has more images but less chrome (chrome being visuals not part of the data you want to show, i.e. edges around buttons). The whole thing is text oriented or image oriented, where that text or image is part of the information you need. What is important is big, what’s less important is smaller. Yet, everything you need to know at that point is present and your attention is drawn immediately to what you’re trying to achieve: information about music. You can easily switch between the content on your machine and content on your Zune player but clicking on the image of the player. But if you didn’t know that, you’d find out soon enough: the whole UX is designed in such a way that it invites you to play around. So sooner or later (probably sooner) you’d click on that image and you would see what it does. In the iTunes version it’s harder to find: the discoverability is a lot lower. For inexperienced people the Zune player feels much more natural than the iTunes player, and they get up to speed a lot faster. How does this all work? Why is this UX better? The answer lies in a project from Microsoft with the codename (it seems to be becoming the official name though) “Metro”. Metro is a design language, based on certain principles. When they thought about UX they took a good long look around them and went out in search of metaphors. And they found them. The team noticed that signage in streets, airports, roads, buildings and so on are usually very clear and very precise. These signs give you the information you need and nothing more. It’s simple, clearly understood and fast to understand. A good example are airport signs. Airports can be intimidating places, especially for the non-experienced traveler. In the early 1990’s Amsterdam Airport Schiphol decided to redesign all the signage to make the traveller feel less disoriented. They developed a set of guidelines for signs and implemented those. Soon, most airports around the world adopted these ideas and you see variations of the Dutch signs everywhere on the globe. The signs are text-oriented. Yes, there are icons explaining what it all means for the people who can’t read or don’t understand the language, but the basic sign language is text. It’s clear, it’s high-contrast and it’s easy to understand. One look at the sign and you know where to go. The only thing I don’t like is the green sign pointing to the emergency exit, but since this is the default style for emergency exits I understand why they did this. If you look at the Zune UI again, you’ll notice the similarities. Text oriented, little or no icons, clear usage of fonts and all the information you need. This design language has a set of principles: Clean, light, open and fast Content, not chrome Soulful and alive These are just a couple of the principles, you can read the whole philosophy behind Metro for Windows Phone 7 here. These ideas seem to work. I love my Windows Phone 7. It’s easy to use, it’s clear, there’s no clutter that I do not need. It works for me. And I noticed it works for a lot of other people as well, especially people who aren’t as proficient with computers as I am. You see these ideas in a lot other places. Corning, a manufacturer of glass, has made a video of possible usages of their products. It’s their glimpse into the future. You’ll notice that a lot of the UI in the screens look a lot like what Microsoft is doing with Metro (not coincidentally Corning is the supplier for the Gorilla glass display surface on the new SUR40 device (or Surface v2.0 as a lot of people call it)). The idea behind this vision is that data should be available everywhere where you it. Systems should be available at all times and data is presented in a clear and light manner so that you can turn that data into information. You don’t need a lot of fancy animations that only distract from the data. You want the data and you want it fast. Have a look at this truly inspiring video that made: This is what I believe the future will look like. Of course, not everything is possible, or even desirable. But it is a nice way to think about the future . I feel very strongly about designing applications in such a way that they add value to the user. Designing applications that turn data into information. Applications that make the user feel happy to use them. So… when are you going to drop the battleship-gray designs? Tags van Technorati: surface,design,windows phone 7,wp7,metro

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  • image filter that spits out pi

    - by patrickinmpls
    I've seen this before but I forgot what's its called. Does anyone know of software that takes a picture and spits out an image of the number pi, ie. 3.14... not the symbol? It basically kinda looks like ascii art but the numbers are different shades of gray so it is like a black and white photo. Thanks!

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