Method unsqueezeModulePos

src/app/RackWidget.cpp:907–951

}

void RackWidget::unsqueezeModulePos(ModuleWidget* mw) {
	math::Rect mwBox = mw->getGridBox();

	// Collect modules to the left and right of old pos, including this module.
	std::set<ModuleWidget*, decltype(compareModuleLeft)*> leftModules(compareModuleLeft);
	std::set<ModuleWidget*, decltype(compareModuleLeft)*> rightModules(compareModuleLeft);
	for (widget::Widget* w2 : internal->moduleContainer->children) {
		ModuleWidget* mw2 = static_cast<ModuleWidget*>(w2);
		// Skip this module
		if (mw2 == mw)
			continue;
		// Modules must be on the same row as pos
		if (mw2->getGridBox().getTop() != mwBox.getTop())
			continue;
		// Insert into leftModules or rightModules
		if (mw2->getGridBox().getLeft() >= mwBox.getLeft())
			rightModules.insert(mw2);
		else
			leftModules.insert(mw2);
	}

	// Immediate right/left modules
	ModuleWidget* leftModule = leftModules.empty() ? NULL : *leftModules.rbegin();
	ModuleWidget* rightModule = rightModules.empty() ? NULL : *rightModules.begin();

	// Shove right modules back to empty space left by module.
	if (leftModule && rightModule && (leftModule != mw) && (rightModule != mw) && leftModule->getGridBox().getRight() >= mwBox.getLeft() && rightModule->getGridBox().getLeft() <= mwBox.getRight()) {
		float xLeft = mwBox.getLeft();
		float xRight = mwBox.getRight();
		for (auto it = rightModules.begin(); it != rightModules.end(); it++) {
			widget::Widget* w2 = *it;
			ModuleWidget* mw2 = static_cast<ModuleWidget*>(w2);
			math::Rect mw2Box = mw2->getGridBox();
			// Break when module is no longer touching
			if (xRight < mw2Box.getLeft())
				break;
			// Shove module to the left
			math::Rect newBox = mw2Box;
			newBox.pos.x = xLeft;
			mw2->setGridPosition(newBox.pos);
			xLeft = newBox.getRight();
			xRight = mw2Box.getRight();
		}
	}
}

void RackWidget::updateModuleOldPositions() {
	internal->moduleOldPositions.clear();