Method SetAllocation

src/SFGUI/Widget.cpp:125–156

}

void Widget::SetAllocation( const sf::FloatRect& rect ) {
	sf::FloatRect oldallocation( m_allocation );

	// Make sure allocation is pixel-aligned.
	m_allocation.position.x = std::floor( rect.position.x + .5f );
	m_allocation.position.y = std::floor( rect.position.y + .5f );
	m_allocation.size.x = std::floor( rect.size.x + .5f );
	m_allocation.size.y = std::floor( rect.size.y + .5f );

	if(
		oldallocation.position.y == m_allocation.position.y &&
		oldallocation.position.x == m_allocation.position.x &&
		oldallocation.size.x == m_allocation.size.x &&
		oldallocation.size.y == m_allocation.size.y
	) {
		// Nothing even changed. Save the hierarchy the trouble.
		return;
	}

	if( ( oldallocation.position.y != m_allocation.position.y ) || ( oldallocation.position.x != m_allocation.position.x ) ) {
	  HandlePositionChange();
	  HandleAbsolutePositionChange();
	}

	if( ( oldallocation.size.x != m_allocation.size.x ) || ( oldallocation.size.y != m_allocation.size.y ) ) {
	  HandleSizeChange();

	  Invalidate();

	  GetSignals().Emit( OnSizeAllocate );
	}
}

void Widget::RequestResize() {
	m_requisition = CalculateRequisition();