Hand Coded GUI Versus Qt Designer GUI

I'm spending these holidays learning to write Qt applications. I was reading about Qt Designer just a few hours ago, which made me wonder : what do people writing real world applications in Qt use...

Layout for label and button programmatically

I am trying to create a SpringLayout in Java, this is the code I have (got it from Oracle Java docs) import javax.swing.*; import java.awt.*; public class SpringForm { private static void...

java JFame will not work when started by actionPerformed

I have been googling an sherthing for an solution to this problem a lot but can't find any answer how to fix this. My problem is that when i start a new jframe from an actionevent from pressing a...

attempt to index local 'g2' (a function value)

The program I'm using is called Oxidizer, a fractal flam3 editor. Basically to animate these beautiful works of digital art, I am using .lua scripts. The one script I'm using, algorhythm.lua...

How to get the input from a JFrame form?

I am trying to get the input that I submit in a JFrame form and store it in an arraylist. I am not sure how to get what input i place in the text field when my ActionEvent occurs. Can anyone tell...

Python Tkinter Notebook widget

Using this python recipe, i have created a notebook like widget on my Tk window. It all works fine until i tried to add an image into each tab. When i add image into the tab, the text i initially...

Incorrect results with vDSP_conv()

I am getting inconsitent results when attempting to do convolution using vDSP_conv() from Accelerate when compared to the MATLAB implementation. There have been a couple of StackOverflow posts...

3D matplotlib basemap meridian and parallel drawing

I'm making 3D plots of aircraft data using matplotlib basemap. I've found a way around the fact that basemap.drawmeridians and basemap.drawparallels does not work with a 3D axis. However, I am...

Custom View animation is smoother than Custom SurfaceView animation?

I have develop similar implementation to test if I should go for View or SurfaceView. I implemented the View as below public class TimerView extends View { private Paint mPiePaint; ...

How to manage absolute coordinate window in gtk3 python

I translated TreeView gtk2 tooltip in Gtk3 It's almost running but I have problem to manage coordinate of tooltip window. I Would like the tooltip window locate near the mouse et follow it near....

R - compute the convolution of 2 multidimensional continuous densities with the help of the fft function

I need to compute a convolution of 2 independent multidimensional continuous densities, given only by their numerical values on a grid. To understand how to compute convolutions, I am trying to...

Matplotlib: How to place x-axis and y-axis TITLES at edges of frame, even if origin is not at bottom left?

I'm making plots where the (0,0) position is not necessarily in the bottom left corner of the plot frame, meaning that the x and y axes and their ticks cross within the plot frame. It's fine to...

Glade gui editor for gtk-sharp3

I followed this official guide: http://www.mono-project.com/docs/gui/gtksharp/beginners-guide/ As that tutorial says, my gui.glade is: <?xml version="1.0" standalone="no"?> <!--*- mode: xml...

Comparing different linear convolution methods in Matlab

I'm trying to understand the difference between linear and circular convolution by adapting the Matlab methodologies here. I'm comparing the results of linear convolution with use of the inbuilt...

Dynamically adjust size of UILabel according to the number of lines programmatically

I have a View where I create a UILabel with numberOfLines equal to zero. I want the label size to be adjusted according to the content of my label (according to numberOfLines). However, I have...

QGamepadManager does not detect controller disconnection on ubuntu

I am working on a Qt project with a drone. Me and my friends are controlling a drone with a Xbox 360 Controller. So to detect buttons and axes we have used the QGamepadManager class which is in...

How do I pass the whole div to XEPOnline.js library and not just the first svg element?

I am using [email protected] to export my plotly.js svg to pdf. It works nicely, but it does not export the colorbar of the heatmap. I am using the "srctype:'svg'" option to save the svg in...

Custom Draw view not showing

I created a custom view to draw some shapes on it but my problem is that nothing is showed on the view. I get no error messages or crash. My custom class looks the like: public class DrawableView...

Intercept click on link in webkit.webview

In an HTML page, by clicking on a link, the page HTML given is displayed. But how to make for open this page in a another tab, with another program? If the link points to another thing that one ...

UnhandledPromiseRejectionWarning: SyntaxError: Unexpected token o in JSON at position 1

code: const request = require('request'); const jimp = require('jimp'); function createShop() { Promise.all([ request({ uri:"https://fnbr.co/api/shop", headers:...

Click listener incorrect data after resizing window with canvas in angular 6

I am using a canvas with clickable elements that was added using for loop, I added a resizing event that redrawing the canvas after user window was resized, When the window is loading for the...

How To Build a DRY Image Gallery - in Django

I've been tinkering with a small image gallery for my project for a few days now, but I feel that I'm not going about it in a very pythonic manner thus far in terms of this part of the project. A...

Parsing new openssh-key-v1 format using openssl libcrypto

I need to parse an SSH private key ~/.ssh/id_rsa with openssl (libcrypto) into a EVP_PKEY* or RSA* key. Until recently this file would be stored in standard PEM or PKCS1 format which is easy to...

Dash Plotly - How to go about solving IndexError: list index out of range', when only the data-source is altered?

I am very new to python coding. With Dash - Plotly, I have plotted sensor data onto a GEO map, below the map is the histogram, which shows the frequency of sensor-observations per hour. There are...

How to resolve list index out of range error?

I have plotted sensor data onto a GEO map, below the map is the histogram, which shows the frequency of sensor-observations per hour. There are three drop-down entries to filter the data based on...

How to define conditional statement for colour of scatterplot dots based on two factors?

This week I started out with Python and Dash as I am eager to learn both. My Goal: I want to single out certain points which are detected by the sensors and color them red if they meet two...

How to go about solving: 'operands could not be broadcast together with shapes '

Context: My code (goal) explained: If from the list 'listCoords' the values from the hour-column is between 1 and 5 AND from the Threat-column the value is equal to '3'. --> output the color...

How to solve Invalid element(s) received for the 'color' property?

I have a piece of code that gives various colours to scatterplot dots based on the hour of the day wherein they were observed. This is done per this code: color=listCoords.index.hour In the...

Android RecyclerView not drawing custom View; onDraw is not called

I have tried all sorts of things and sifted through lots of questions on this site. None of it is working. I followed this tutorial: https://developer.android.com/guide/topics/ui/custom-components...

Tkinter: Multiple Radio Buttons

I am creating a multiple choice test and a single question will have 3 parts (only 2 shown below - will add 3rd once I get this down). I want the user to answer all parts, then hit submit button...