Method updateExpanders

src/app/RackWidget.cpp:1646–1676

void RackWidget::updateExpanders() {
	for (widget::Widget* w : internal->moduleContainer->children) {
		ModuleWidget* mw = (ModuleWidget*) w;

		math::Vec pLeft = mw->getGridBox().getTopLeft();
		math::Vec pRight = mw->getGridBox().getTopRight();
		ModuleWidget* mwLeft = NULL;
		ModuleWidget* mwRight = NULL;

		// Find adjacent modules
		for (widget::Widget* w2 : internal->moduleContainer->children) {
			ModuleWidget* mw2 = (ModuleWidget*) w2;
			if (mw2 == mw)
				continue;

			math::Vec p2Left = mw2->getGridBox().getTopLeft();
			math::Vec p2Right = mw2->getGridBox().getTopRight();

			// Check if this is a left module
			if (p2Right.equals(pLeft))
				mwLeft = mw2;

			// Check if this is a right module
			if (p2Left.equals(pRight))
				mwRight = mw2;
		}

		mw->module->leftExpander.moduleId = mwLeft ? mwLeft->module->id : -1;
		mw->module->rightExpander.moduleId = mwRight ? mwRight->module->id : -1;
	}
}


} // namespace app