See also questions close to this topic

• I can not activate Motions in python-mode

  I have Vim 8.1.477 and I installed this python-mode plug-in (natively, in /.vim/pack/bundle/start/ directory with the help of 'recursive' git cloning, as suggested).

  Strangely enough, after adding

  let g:pymode_motion = 1
  

  to .vimrc as it is suggested in the pymode-motion section of the help file all motions besides the ]] and [[ do not work as they should according to the script, where they are defined:

  https://github.com/python-mode/python-mode/blob/develop/after/ftplugin/python.vim

  The magic option is on, I checked.

  Also, the rope completion that seems to be affected by the same script is working fine.

  Did anybody have the same problem? These motions are one of the main reasons why I seem to need this plug-in, I edit piles of files... and that's why I use Vim...
• Vim visual to x^th character

  So I know to do a visual from the current cursor position to a character is vt[char] but what if I want to do a visual from current position to the second instance of that character?

  For example I have this line:

  <TextBox x:Name="tbPreEventTime" Text="{Binding Source={x:Static properties:Settings.Default}, Path=CameraBeforeTS }"

  And I want to copy from the { to the } that appears at the very end or the second instance of the bracket
• In vscode, how to put editor regions inside tabs, and not the other way around?

  I've been trying Visual Studio Code for a few days, and it's the first editor that I used in years that makes me feel I could switch from my beloved vim.

  Now, it's hard to get used to new habits when you have years of muscle memory, but I'm trying to keep an open mind. There's one thing that's bugging me, though, and I could not find a way to get around: it's the fact that editor regions and tabs are "swapped". Let me explain:

  In vscode, you define editor regions by splitting your screen, then each region can contain as many tabs as you want.

  My problem is, that does not fit my workflow. Here's what my workflow used to be with vim, where regions are inside a single set of tabs (I mainly work with Django):

  In a first tab, I've split my editor in half and I'm editing my models.py and forms.py side by side.

  In a second tab, I've split the editor in half, I'm editing my views.py on the left hand side, and the right hand side is again split horizontaly, allowing me to edit multiple templatetags files.

  In a third tab, I'm editing my main template, and I don't split the editor since the file may contain very long lines.

  In a fourth tab, I'm editing several html files and the editor is split multiple times.

  Etc.

  That way, I can very quickly go to edit my models, then my views, then the templates, and start over in quick iterations.

  With vscode, where the tabs are inside the fixed regions, not so much.

  So my question is, what solution could I use? Am I missing a big feature here? Are there any extension that would allow me to get my old workflow back?

  I'm also open to suggestions about new workflows.
• bitmap, how to make a black boder bitmap ,and can fill it with any color

  origin photo

  the end photo

  I want to make a drawable black border Bitmap by taking photos. everyone can give me some advice. Thank you .
• Avoid color transition flickering Java

  I made a color transition just to highlight a button when the mouse enters that button, The "animation" works fine if you move the mouse slow, but if you go in and out of the button with the mouse fast a flicker appears, how can I avoid it?

  PD: Sorry for the messy code, I am just practicing and wasn´t paying attention to good code design.

  PD1: Most of the comments are either ideas for solving the flickering I must check or questions I have to ask to some friends working with me.

  Source code

  public class MainWindow extends JFrame {
  
  private JPanel contentPane;
  private JPanel pnLateralPanel;
  private JButton btnCreateParty;
  private MyButtonTransitionAnimation buttonColorTransition = new MyButtonTransitionAnimation();
  private JButton btnJoinParty;
  private Color x,y;
  private JPanel pnIluminationLateralCreateParty;
  private JPanel pnIluminationLateralJoinParty;
  private JLabel lblMainMenu;
  private JLabel lblLoginregister;
  private JPanel pnIluminationLateralMyParties;
  private JButton btnMypartiesCart;
  private JLabel lblGeneralOptions;
  private JButton btnProfile;
  private JButton btnSettings;
  private JButton btnHelp;
  private JLabel lblAbout;
  private JPanel pnIluminationLateralProfile;
  private JPanel pnIluminationLateralSettings;
  private JPanel pnIluminationLateralHelp;
  
  /**
   * Launch the application.
   */
  public static void main(String[] args) {
      EventQueue.invokeLater(new Runnable() {
          public void run() {
              try {
                  MainWindow frame = new MainWindow();
                  frame.setLocationRelativeTo(null);
                  frame.setResizable(false);
                  frame.setVisible(true);
              } catch (Exception e) {
                  e.printStackTrace();
              }
          }
      });
  }
  
  /**
   * Create the frame.
   */
  private class MyButtonTransitionAnimation extends MouseAdapter{
  
  
          @Override
          public void mouseEntered(MouseEvent arg0) {
              JButton buttonSource = (JButton) arg0.getSource();
              ArrayList<Color> colorsForButton = interpolateColors(x, y);
              ArrayList<Color> colorsForLateral = interpolateColors(x.brighter(), y.brighter());
              JPanel lateralPanel = (JPanel) pnLateralPanel.getComponentAt(0, buttonSource.getY());
  
              Thread th = new Thread() { //Ask about this syntax, we are extending Thread and making a custom run?
                  public void run() {
                      try {
                          for (int i = 0; i < colorsForButton.size(); i++) {
  //                              if(!isMouseInsideComponent(buttonSource))
  //                                  break;
                              Thread.sleep(5);
                              buttonSource.setBackground(colorsForButton.get(i));
                              lateralPanel.setBackground(colorsForLateral.get(i));
                          }
  //                          if(isMouseInsideComponent(buttonSource))
                              buttonSource.setBackground(y);
                              lateralPanel.setBackground(colorsForLateral.get(colorsForLateral.size() - 1));
  //                          else
  //                              buttonSource.setBackground(x);
  
                      }
                      catch(Exception e ) {
                          e.printStackTrace();
                      }
                  }
              };th.start();                   
          }
  
          public void mouseExited(MouseEvent arg0) {
              JButton buttonSource = (JButton) arg0.getSource();
              ArrayList<Color> colorsForButton = interpolateColors(x, y);
              ArrayList<Color> colorsForLateral = interpolateColors(x, y.brighter());
              JPanel lateralPanel = (JPanel) pnLateralPanel.getComponentAt(0, buttonSource.getY());
  
  
              Thread th = new Thread() {
                  public void run() {
                      try {
                          for (int i = colorsForButton.size() - 1; i >= 0; i--) {
  //                              if(!isMouseInsideComponent(buttonSource)) {
  //                                  break;
  //                              }
                              Thread.sleep(5);
                              buttonSource.setBackground(colorsForButton.get(i));
                              lateralPanel.setBackground(colorsForLateral.get(i));
  
                          }
                          buttonSource.setBackground(x);
                          lateralPanel.setBackground(buttonSource.getBackground());
                      }
                      catch(Exception e ) {
                          e.printStackTrace();
                      }
                  }
              };th.start();   
          }
      }
  
  private boolean isMouseInsideComponent(Component c) {
      Point mousePos = MouseInfo.getPointerInfo().getLocation();
      Rectangle bounds = c.getBounds();
      bounds.setLocation(c.getLocationOnScreen());
      return bounds.contains(mousePos);
  }
  
  
  public MainWindow() {
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      setBounds(0, 0, (int) Math.round(screenSize.width * 0.6), (int) Math.round(screenSize.height * 0.6));
      contentPane = new JPanel();
      contentPane.setForeground(new Color(230, 230, 250));
      contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
      setContentPane(contentPane);
      contentPane.setLayout(null);
      contentPane.add(getPnLateralPanel());
      UIManager.put("Button.select", pnLateralPanel.getBackground()); // How to do this without modifiying the whole UI (do this just for specific buttons)
  
      x = pnLateralPanel.getBackground();
      y = pnLateralPanel.getBackground().brighter();
  }
  
  private JPanel getPnLateralPanel() {
      if (pnLateralPanel == null) {
          pnLateralPanel = new JPanel();
          pnLateralPanel.setBackground(new Color(125, 56, 101));
          pnLateralPanel.setBounds(0, 0, 324, 601);
          pnLateralPanel.setLayout(null);
          pnLateralPanel.add(getBtnCreateParty());
          pnLateralPanel.add(getBtnJoinParty());
          pnLateralPanel.add(getPnIluminationLateralCreateParty());
          pnLateralPanel.add(getPanel_1());
          pnLateralPanel.add(getLblMainMenu());
          pnLateralPanel.add(getLblLoginregister());
          pnLateralPanel.add(getPnIluminationLateralMyParties());
          pnLateralPanel.add(getBtnMypartiesCart());
          pnLateralPanel.add(getLblGeneralOptions());
          pnLateralPanel.add(getBtnProfile());
          pnLateralPanel.add(getBtnSettings());
          pnLateralPanel.add(getBtnHelp());
          pnLateralPanel.add(getLblAbout());
          pnLateralPanel.add(getPnIluminationLateralProfile());
          pnLateralPanel.add(getPnIluminationLateralSettings());
          pnLateralPanel.add(getPnIluminationLateralHelp());
      }
      return pnLateralPanel;
  }
  
  protected ArrayList<Color> interpolateColors(Color x, Color y) {
      ArrayList<Color> colors = new ArrayList<>();
      for (float i = 0; i < 0.99f; i += 0.01) {
          float blending = 0.0f + i;
          float inverse_blending = 1 - blending;
  
          float red = y.getRed() * blending + x.getRed() * inverse_blending;
          float green = y.getGreen() * blending + x.getGreen() * inverse_blending;
          float blue = y.getBlue() * blending + x.getBlue() * inverse_blending;
          colors.add(new Color(red / 255, green / 255, blue / 255));
      }
      return colors;
  }
  
  private JButton getBtnCreateParty() {
      if (btnCreateParty == null) {
          btnCreateParty = new JButton("Create Party");
          btnCreateParty.addMouseListener(buttonColorTransition);
          btnCreateParty.setForeground(new Color(193, 167, 176));
          btnCreateParty.setFont(new Font("Century Gothic", Font.BOLD, 17));
          btnCreateParty.setBackground(pnLateralPanel.getBackground());
          btnCreateParty.setBounds(6, 149, 318, 43);
          btnCreateParty.setBorder(null);
          btnCreateParty.setFocusPainted(false);
      }
      return btnCreateParty;
  }
  private JButton getBtnJoinParty() {
      if (btnJoinParty == null) {
          btnJoinParty = new JButton("Join Party");
          btnJoinParty.addMouseListener(buttonColorTransition);
          btnJoinParty.setForeground(new Color(193, 167, 176));
          btnJoinParty.setFont(new Font("Century Gothic", Font.BOLD, 17));
          btnJoinParty.setBackground(pnLateralPanel.getBackground());
          btnJoinParty.setBounds(6, 205, 318, 43);
          btnJoinParty.setBorder(null);
          btnJoinParty.setFocusPainted(false);
      }
      return btnJoinParty;
  }
  
  
  private JPanel getPnIluminationLateralCreateParty() {
      if (pnIluminationLateralCreateParty == null) {
          pnIluminationLateralCreateParty = new JPanel();
          pnIluminationLateralCreateParty.setBounds(0, 149, 6, 43);
          pnIluminationLateralCreateParty.setBackground(pnLateralPanel.getBackground());
      }
      return pnIluminationLateralCreateParty;
  }
  private JPanel getPanel_1() {
      if (pnIluminationLateralJoinParty == null) {
          pnIluminationLateralJoinParty = new JPanel();
          pnIluminationLateralJoinParty.setBounds(0, 205, 6, 43);
          pnIluminationLateralJoinParty.setBackground(pnLateralPanel.getBackground());
      }
      return pnIluminationLateralJoinParty;
  }
  private JLabel getLblMainMenu() {
      if (lblMainMenu == null) {
          lblMainMenu = new JLabel("Main Menu");
          lblMainMenu.setForeground(new Color(15, 162, 169)); // Another color option: new Color(248, 183, 3)
          lblMainMenu.setFont(new Font("Century Gothic", Font.BOLD, 17));
          lblMainMenu.setBackground(new Color(0, 0, 153));
          lblMainMenu.setBounds(24, 120, 126, 16);
      }
      return lblMainMenu;
  }
  private JLabel getLblLoginregister() {
      if (lblLoginregister == null) {
          lblLoginregister = new JLabel("Login/Register");
          lblLoginregister.setForeground(new Color(15, 162, 169));
          lblLoginregister.setFont(new Font("Century Gothic", Font.BOLD | Font.ITALIC, 15));
          lblLoginregister.setBounds(200, 36, 112, 25);
      }
      return lblLoginregister;
  }
  
  private JPanel getPnIluminationLateralMyParties() {
      if (pnIluminationLateralMyParties == null) {
          pnIluminationLateralMyParties = new JPanel();
          pnIluminationLateralMyParties.setBounds(0, 261, 6, 43);
          pnIluminationLateralMyParties.setBackground(pnLateralPanel.getBackground());
      }
      return pnIluminationLateralMyParties;
  }
  private JButton getBtnMypartiesCart() {
      if (btnMypartiesCart == null) {
          btnMypartiesCart = new JButton("MyParties/Cart");
          btnMypartiesCart.addMouseListener(buttonColorTransition);
          btnMypartiesCart.setForeground(new Color(193, 167, 176));
          btnMypartiesCart.setFont(new Font("Century Gothic", Font.BOLD, 17));
          btnMypartiesCart.setBackground(pnLateralPanel.getBackground());
          btnMypartiesCart.setBounds(6, 261, 318, 43);
          btnMypartiesCart.setBorder(null);
          btnMypartiesCart.setFocusPainted(false);
      }
      return btnMypartiesCart;
  }
  private JLabel getLblGeneralOptions() {
      if (lblGeneralOptions == null) {
          lblGeneralOptions = new JLabel("General Options");
          lblGeneralOptions.setForeground(new Color(15, 162, 169));
          lblGeneralOptions.setFont(new Font("Century Gothic", Font.BOLD, 17));
          lblGeneralOptions.setBounds(24, 336, 144, 25);
      }
      return lblGeneralOptions;
  }
  private JButton getBtnProfile() {
      if (btnProfile == null) {
          btnProfile = new JButton("Profile");
          btnProfile.addMouseListener(buttonColorTransition);
          btnProfile.setForeground(new Color(193, 167, 176));
          btnProfile.setFont(new Font("Century Gothic", Font.BOLD, 17));
          btnProfile.setBackground(pnLateralPanel.getBackground());
          btnProfile.setBounds(6, 374, 318, 43);
          btnProfile.setBorder(null);
          btnProfile.setFocusPainted(false);
      }
      return btnProfile;
  }
  private JButton getBtnSettings() {
      if (btnSettings == null) {
          btnSettings = new JButton("Settings");
          btnSettings.addMouseListener(buttonColorTransition);
          btnSettings.setForeground(new Color(193, 167, 176));
          btnSettings.setFont(new Font("Century Gothic", Font.BOLD, 17));
          btnSettings.setBackground(pnLateralPanel.getBackground());
          btnSettings.setBounds(6, 430, 318, 43);
          btnSettings.setBorder(null);
          btnSettings.setFocusPainted(false);
      }
      return btnSettings;
  }
  private JButton getBtnHelp() {
      if (btnHelp == null) {
          btnHelp = new JButton("Help");
          btnHelp.addMouseListener(buttonColorTransition);
          btnHelp.setForeground(new Color(193, 167, 176));
          btnHelp.setFont(new Font("Century Gothic", Font.BOLD, 17));
          btnHelp.setBackground(pnLateralPanel.getBackground());
          btnHelp.setBounds(6, 486, 318, 43);
          btnHelp.setBorder(null);
          btnHelp.setFocusPainted(false);
      }
      return btnHelp;
  }
  private JLabel getLblAbout() {
      if (lblAbout == null) {
          lblAbout = new JLabel("About");
          lblAbout.setForeground(new Color(15, 162, 169));
          lblAbout.setFont(new Font("Century Gothic", Font.PLAIN, 15));
          lblAbout.setHorizontalAlignment(SwingConstants.CENTER);
          lblAbout.setBounds(215, 563, 97, 25);
      }
      return lblAbout;
  }
  private JPanel getPnIluminationLateralProfile() {
      if (pnIluminationLateralProfile == null) {
          pnIluminationLateralProfile = new JPanel();
          pnIluminationLateralProfile.setBounds(0, 374, 6, 43);
          pnIluminationLateralProfile.setBackground(pnLateralPanel.getBackground());
      }
      return pnIluminationLateralProfile;
  }
  private JPanel getPnIluminationLateralSettings() {
      if (pnIluminationLateralSettings == null) {
          pnIluminationLateralSettings = new JPanel();
          pnIluminationLateralSettings.setBounds(0, 430, 6, 43);
          pnIluminationLateralSettings.setBackground(pnLateralPanel.getBackground());
  
      }
      return pnIluminationLateralSettings;
  }
  private JPanel getPnIluminationLateralHelp() {
      if (pnIluminationLateralHelp == null) {
          pnIluminationLateralHelp = new JPanel();
          pnIluminationLateralHelp.setBounds(0, 486, 6, 43);
          pnIluminationLateralHelp.setBackground(pnLateralPanel.getBackground());
      }
      return pnIluminationLateralHelp;
  }
  

  }
• Cannot assign value of type 'UIColor' to type 'CGColor?

  Attempt

  I just added the extention to convert hex to UIcolor

  extension UIColor {
      convenience init(hexString: String, alpha: CGFloat = 1.0) {
          let hexString: String = hexString.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines)
          let scanner = Scanner(string: hexString)
          if (hexString.hasPrefix("#")) {
              scanner.scanLocation = 1
          }
          var color: UInt32 = 0
          scanner.scanHexInt32(&color)
          let mask = 0x000000FF
          let r = Int(color >> 16) & mask
          let g = Int(color >> 8) & mask
          let b = Int(color) & mask
          let red   = CGFloat(r) / 255.0
          let green = CGFloat(g) / 255.0
          let blue  = CGFloat(b) / 255.0
          self.init(red:red, green:green, blue:blue, alpha:alpha)
      }
      func toHexString() -> String {
          var r:CGFloat = 0
          var g:CGFloat = 0
          var b:CGFloat = 0
          var a:CGFloat = 0
          getRed(&r, green: &g, blue: &b, alpha: &a)
          let rgb:Int = (Int)(r*255)<<16 | (Int)(g*255)<<8 | (Int)(b*255)<<0
          return String(format:"#%06x", rgb)
      }
  }
  

  ---

  Usage

  When I started to use it

  profileImage.layer.borderColor = UIColor(hexString: "#3f3f3f")

  ---

  Result

  I kept getting

  Cannot assign value of type 'UIColor' to type 'CGColor?'

  

  Any hints for me ? I'm on XCode 10 Swift 4.
• Customize color of text inside `backquotes` in VSCode

  The only options I can find that deal with custom coloring inside Visual Studio Code are those:

  "editor.tokenColorCustomizations": {
      "[Atom One Dark]": {
          "comments": "#FF0000" // only 6 color-customizable
      },
      "workbench.colorCustomizations": {
          "statusBar.background": "#666666",
          "panel.background": "#555555",
          "sideBar.background": "#444444"
      },
  },
  

  Is there a way to set a custom color for these types of things? One exists for comments, for strings (inside "string"). I believe something similar should be possible for other stuff using regexps. Thanks in advance.
• Syntax highlighting get lost

  Sometimes when I open a markdown file, there is no syntax highlight if I do not open from the beginning of the file (when I quit last time leaving the cursor in the middle of the file). I have to jump to previous lines where the syntax highlights exists and run the cursor down such that the lines my cursor passes will recover their syntax highlights.

  How could I fix this problem, or is there any command for me to refresh the syntax highlight so that I could run it when I open the file/buffers ?
• Vim cannot find colorscheme installed by Vundle

  I was trying to install gruvbox colorscheme through Vundle but when I run vim. There was an error like this:

  Error detected while processing C:\Users\user\.vimrc:
  
  line   53:
  
  E185: Cannot find color scheme 'gruvbox'
  

  I've searched everywhere in Stack Overflow and tried everything but none of them worked. Can you please help me figure this out?

  Here are commands which I ran:

  vim
  :PluginInstall
  :q 
  vim <-- This is where I got the error
  

  my .vimrc:

  set nocompatible          
  filetype off                  
  
  set rtp+=$HOME/.vim/bundle/Vundle.vim/
  call vundle#begin('$HOME/.vim/bundle/')
  
  Plugin 'VundleVim/Vundle.vim'
  
  Plugin 'tpope/vim-fugitive'
  Plugin 'file:///home/gmarik/path/to/plugin'
  Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
  
  Plugin 'morhetz/gruvbox'
  
  
  call vundle#end()           
  filetype plugin indent on   
  
  syntax enable
  set background=dark
  colorscheme gruvbox
  set tabstop=4 
  set softtabstop=4 
  set expandtab 
  set number
  set showcmd
  set cursorline
  filetype indent on 
  set wildmenu 
  set lazyredraw 
  set showmatch
  set incsearch 
  set hlsearch 
  nnoremap <leader><space> :nohlsearch<CR>
  
• Opening new gnome-terminal (v3.28+) with multiple tabs and different commands

  It seems the behavior of gnome-terminal has changed between the version shipped with Ubuntu 14 (v3.6?) and Ubuntu 18 (v3.28).

  I have a script that opens a new gnome-terminal with a bunch of tabs setup to different directories for my development, and currently the first tab runs a script. The command to open the gnome-terminal with tabs looks something like this:

  gnome-terminal \
     --tab --command="myscript.sh" \
     --tab --working-directory="<some dir 1>" \
     --tab --working-directory="<some dir 2>" \
     ...
  

  This works perfectly as desired in the gnome-terminal version that shipped with Ubuntu 14 (v3.6?).

  But in the gnome-terminal version that ships with Ubuntu 18 (v3.28) several things have changed:

  1. Unless I add the --window option, the tabs open in the current gnome-terminal, not a new one. Unfortunately adding the --window option opens an initial blank tab. Is it possible to open a new window with only the tabs that I specify?

  2. I now get the following notice (though it functions as before):

     # Option “--command” is deprecated and might be removed in a later version of gnome-terminal.
     # Use “-- ” to terminate the options and put the command line to execute after it.
     

     Changing my script per this guidance changes the behavior such that the command is issued to all tabs, whereas before I could apply a unique command to each tab. Does this mean the ability to run a separate command per tab has been deprecated, or am I missing something?

  I appreciate suggestions on how to change my script to support the old behavior in the newer gnome-terminal.
• How to display Regional Status Indicators (country flags) in the terminal

  How do you display Regional Status Indicators (things like country flags) in the Linux Terminal? Is this even possible?

  I'm programming a VPN client and would like to include some flags for the countries the client includes. For example, I would like to display the Japan flag (🇯🇵). I pasted the two Unicode symbols 🇯 and 🇵 next to each other in a Bash script, but upon running the script in the Terminal, I just got the two symbols next to each other (they didn't "merge"). For example purposes I have part of the file below (note there is a space between the symbols so they don't "merge" in the browser, the space is not there in the real script).

  #!/bin/bash
  echo "Please choose a server:"
  echo -e "🇯 🇵 Japan (1)"     # in the real script there is no space here.
  echo -e "..."
  read -p "> " choice
  ...
  

  And upon running:

  $ ./script.sh
  Please choose a server:
  🇯 🇵 Japan (1)            [ with no space in between ]
  ...
  

  I understand the concept of Regional Status Indicators, but my question is if it's possible to use them in the terminal.

  Edit: I noted that some answerers were having trouble understanding my problem, so I provided a screenshot of what my terminal looks like when I run this script.
• Open new terminal window and execute bash file

  I have written a bash script 'A' that executes some commands,but after complete execution of script 'A',I want another bash script 'B' which is stored on desktop to be executed new terminal window after execution of 'A' is completed.What command should I write at end of script 'A'?So that script 'B' is executed in new terminal window. I have tried many commands such as gnome-terminal and konsole both with their various arguments but I couldn't make it work.