Fix for NullPointerException thrown in PApplet.dequeueWindowEvents()

[hx2A]

Here is a fix for #918.

When the window is moved or resized, the new location or size values will be stored as a pair in the windowEventQueue map. This ensures that there are no race conditions if one value has been added but the other has not.

The exception I saw when I opened #918 is probably very rare and would be hard to reproduce. Nevertheless, we can review the code change and verify that the necessary functionality still works. You can test window move and resize events with the following code:

void setup() {
  size(200, 200, JAVA2D);
  windowResizable(true);
  windowMove(100, 100);
}

void draw() {
}

void windowResized() {
  println("new size", width, height);
}

void windowMoved() {
  println("new location", windowX, windowY);
}

void keyPressed() {
  windowResize(200, 200);
  windowMove(100, 100);
}

It also works with the P2D renderer.

[Stefterv]

Hi @hx2A Thank you for the fix, I tested it on macOS arm64 and works just fine here too.

[hx2A]

Hi @hx2A Thank you for the fix, I tested it on macOS arm64 and works just fine here too.

You are welcome! Happy to help out here.