padding

Adding padding to a tkinter widget only on one side

The padding options padx and pady of the grid and pack methods can take a 2-tuple that represent the left/right and top/bottom padding. Here’s an example: import tkinter as tk class MyApp(): def __init__(self): self.root = tk.Tk() l1 = tk.Label(self.root, text=”Hello”) l2 = tk.Label(self.root, text=”World”) l1.grid(row=0, column=0, padx=(100, 10)) l2.grid(row=1, column=0, padx=(10, 100)) app = … Read more

Encrypt in PHP openssl and decrypt in javascript CryptoJS

CryptoJS: PHP openssl encrypt -> javascript decrypt PHP: function CryptoJSAesEncrypt($passphrase, $plain_text){ $salt = openssl_random_pseudo_bytes(256); $iv = openssl_random_pseudo_bytes(16); //on PHP7 can use random_bytes() istead openssl_random_pseudo_bytes() //or PHP5x see : https://github.com/paragonie/random_compat $iterations = 999; $key = hash_pbkdf2(“sha512”, $passphrase, $salt, $iterations, 64); $encrypted_data = openssl_encrypt($plain_text, ‘aes-256-cbc’, hex2bin($key), OPENSSL_RAW_DATA, $iv); $data = array(“ciphertext” => base64_encode($encrypted_data), “iv” => bin2hex($iv), “salt” … Read more

String Padding in C

It might be helpful to know that printf does padding for you, using %-10s as the format string will pad the input right in a field 10 characters long printf(“|%-10s|”, “Hello”); will output |Hello | In this case the – symbol means “Left align”, the 10 means “Ten characters in field” and the s means … Read more

Decorating Hex function to pad zeros

Use the new .format() string method: >>> “{0:#0{1}x}”.format(42,6) ‘0x002a’ Explanation: { # Format identifier 0: # first parameter # # use “0x” prefix 0 # fill with zeroes {1} # to a length of n characters (including 0x), defined by the second parameter x # hexadecimal number, using lowercase letters for a-f } # End … Read more

Padding-bottom/top in flexbox layout

Update September 2020 Firefox and edge have implemented the behaviour from the specs and margin + padding for flex elements are both calculated according to the width of the containing block. Just like block elements. Update February 2018 Firefox and edge have agreed to change their behaviour on top, bottom margin and padding for flex … Read more

ActionBarSherlock – How to set the padding of each actionbar’s icon?

<style name=”AppTheme” parent=”Theme.Sherlock”> <item name=”actionButtonStyle”>@style/MyActionButtonStyle</item> <item name=”android:actionButtonStyle”>@style/MyActionButtonStyle</item> </style> <style name=”MyActionButtonStyle” parent=”Widget.Sherlock.ActionButton”> <item name=”android:minWidth”>32dip</item> <item name=”android:padding”>0dip</item> </style> The default value of android:minWidth for the ActionBar buttons is 56dip. Don’t forget to set @style/AppTheme as the Activity‘s theme.

Can C arrays contain padding in between elements?

No, there will never be padding in between elements of an array. That is specifically not allowed. The C99 standard calls array types “An array type describes a contiguously allocated nonempty set of objects…”. For contrast, a structure is “sequentially”, not “contiguously” allocated. There might be padding before or after an array within a structure; … Read more