Image for IGUIButton disabled

[andres]

i'm not sure if this is a bug, but found the following problem:

i've an IGUIbutton that has an image (button->setImage(...)), the image works fine, but
when i disable the button using setEnable(false) the image does not change. this is bad cause the user can't see if the button is enabled or disabled. so i've added an condition on CGUIButton.cpp draw() method:

Code: Select all

if (!IsEnabled)

	{
		core::position2d<s32> pos = spritePos;

		pos.X -= ImageRect.getWidth() / 2;

		pos.Y -= ImageRect.getHeight() / 2;
		driver->draw2DRectangle(irr::video::SColor(150,255,255,255), core::recti(pos, ImageRect.getSize()) );

	}

this way i draw a simple semi-transparent rectangle over the button. So, there is another way to do this? (without recompiling the engine). We could also create a DisabledImage var an methods to set it (just like PressedImage).

[CuteAlien]

There is a patch for image-states on the bug-tracker, although I think it also didn't support disabled. It's something that probably should be reworked. I never dared working on that, as it seemed some work-in-process stuff (there had been sprites added in the past additional to images, but not all states there already got support for it) and I didn't know how it was planned. But I guess I better put it on my todo now - it doesn't seem others still work on that (but don't expect it anytime soon, I'm out of time for a while).

For simple GUI's you can maybe work around it by changing the image manually when you disable the button. Otherwise I can currently only recommend either to use a patched engine or to use an own button class for that.