How to change mouse cursor?

Development
1

Hi people :slight_smile: How are you? Hope all is ok.

Is there a way in Rack/draw process to switch the mouse icon? In windows, for example, I’m often using IDC_SIZENS or IDC_HAND modes, while hovering different stuff.

Any native way to do this in Rack? (cross-browser would be nice, since I’ll release stuff on each target platform).

Thanks again, as usual!

1 Like
2

https://www.glfw.org/docs/latest/input_guide.html#cursor_object Use responsibly.

3 Likes
3

Wouldn’t it be better to have this standardised in Rack, like hand cursor for draggable stuff, pencil for free drawing of waveshapes and so on (if there is really the need for it)? I do not want to take away anyone the freedom to design surfaces the way they want, but IMO it makes sense to unify such things/behaviors.

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4

If you have a feature request for Rack, you need to open a GitHub issue with your proposal.

1 Like
5

but please do so, it’s a great idea.

1 Like
6

Thanks, pretty straightforward. I’ve done this way, if someone else need:

void onHover(const event::Hover& e) override {
	OpaqueWidget::onHover(e);

	if (cursorBounded) {
		GLFWcursor *cursor;

		if (showHand) {
			cursor = glfwCreateStandardCursor(GLFW_HAND_CURSOR);
		} else if (showVResize) {
			cursor = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR);
		}

		glfwSetCursor(APP->window->win, cursor);
	} else {
		glfwSetCursor(APP->window->win, NULL);
	}
}
void onLeave(const event::Leave& e) override {
	OpaqueWidget::onLeave(e);

	glfwSetCursor(APP->window->win, NULL);
}
1 Like
7

Why not use onEnter?

8

Because while “hovering” the plot, cursor will change according to what I’m hovering (point, lines, etc). So I need constantly to check what I’m hovering, and change the mouse icon accordly.