Custom Widgets?

[Amerio.Stephane]

Hi,

Is it possible to code our own Widgets, that could be integrated along side the others UnigineWidget. We need some very specific UI, like a rotary knob, a sequencer, an editable curve editor... All could be done or are existing with other UI sdk, but maybe it could be done seamlessly with the other widgets. A quick sample would help greatly.

Thanks!

[cash-metall]

Hi! 

there are two possible solutions

1. inherit from WidgetExternBase
you can override methods:

update
checkCallbacks
render

you can find a sample in Samples -> C++API -> Widgets -> WidgetExtern

2. use WidgetCanvas, draw on it by its API and interact via the basic Input system
Samples -> UnigineScript -> Widgets -> canvas_02 / canvas_03 (not the best example, but there is interaction with the canvas using the mouse)

[Amerio.Stephane]

WidgetExternBase looks like the correct way, but how do you manage mouse/keyboard interaction with it? Any possibility to assign a callback?

[cash-metall]

34 minutes ago, Amerio.Stephane said:

but how do you manage mouse/keyboard interaction with it?

what kind of manage? Widgets do not have any specific mouse and keyboard controls

you can use Widget::getMouseX/getMouseY for mouse position in widget space. 

you can check click and double click in checkCallbacks Gui::getMouseButtons

void MyButton::checkCallbacks(int x, int y)
{
	check_default_callbacks(x, y);
	auto gui = getGui();

	if (isEnabled() && isFocused())
	{
		// double clicked
		if (gui->getMouseButtons() & Gui::MOUSE_MASK_DCLICK)
		{
			if (x >= 0 && y >= 0 && x < getWidth() && y < getHeight())
			{
				gui->setMouseButtons((gui->getMouseButtons() & ~Gui::MOUSE_MASK_DCLICK) | Gui::MOUSE_MASK_LEFT); // stop propagation
				runCallback(Gui::DOUBLE_CLICKED);
			}
		}
	}
}

the same way with keyPress/textPress

 

[Amerio.Stephane]

Oooh I get it now. Thanks!