python (12.9k questions)

javascript (9.2k questions)

reactjs (4.7k questions)

java (4.2k questions)

java (4.2k questions)

c# (3.5k questions)

c# (3.5k questions)

html (3.3k questions)

Questions - canvas

SwiftUI TabView not rendering Preview Labels

I am developing a SwiftUI App for macOS. However, i was not able to make TabView to render correctly in Preview Canvas and when using the view on a new Window. struct DevView: View { @State v...
test-img

flymg

canvas

swiftui

render

preview

tabview

Votes: 0

Answers: 1

Latest Answer

On MacOS SwiftUI does not render images in Tab labels: https://developer.apple.com/design/human-interface-guidelines/macos/windows-and-views/tab-views/ You have to go for a custom solution with Button...
test-img

ChrisR

JS remove event listener with no condition?

I have the following code function setSize() { canvas.width = window.innerWidth; canvas.height = window.innerHeight; document.addEventListener('resize', setSize) } As you can see the resi...
test-img

Michael Moreno

javascript

canvas

event-handling

html5-canvas

Votes: 0

Answers: 1

Latest Answer

You can do what you want, but it doesn't provide you to remove the listener in the handler. A short example would be like this: function setSize () { canvas.width = window.innerWidth; canvas.h...
test-img

Teemu

How to have a Vispy.app.Canvas running directly in Vispy.app AND as a QWidget inside a QMainWindow

I would like to know how I can make the self.show() instruction at the end of my Vispy.app.Canvas init() dependant on the fact the canvas is basically run in a Vispy app or as a QWidget in a QMainWind...
test-img

GregVDS

python-3.x

canvas

qwidget

qmainwindow

vispy

Votes: 0

Answers: 1

Latest Answer

You don't need to have the self.show() in the __init__ method of the class. You could call it from the module that is using it, after the Canvas is created: canvas = Canvas(...) canvas.show() That wa...
test-img

djhoese

Canvas Matrix Animation JS

I've found this example on codePen, and the first iteration when letters moving in one line looks terrible, is it possible to start moving columns from different postions from start? (not from secon...
test-img

Danny McCormick

javascript

css

canvas

Votes: 0

Answers: 1

Latest Answer

The vertical screen position for each of the animations' letters is stored in an array called drops. At startup each letter gets the same initial position by the following two lines: for (var x = 0; x...
test-img

obscure

Posts

Questions

Blogs

Jobs