Revamp code

-Move MoveElementsCommand class from diagramcommands file to
movegraphicsitemcommand file.
-Rename the to class MoveGraphicsItemCommand.
-Minor code change to make it more modern.

sources/diagramcommands.cpp

@@ -148,155 +148,6 @@ CutDiagramCommand::~CutDiagramCommand()
 {
 }
 
-/**
-	@brief MoveElementsCommand::MoveElementsCommand
-	Constructor
-	@param dia diagram
-	@param diagram_content diagram content (contain all items to be moved)
-	@param m movement to applied
-	@param parent parent undo command
-*/
-MoveElementsCommand::MoveElementsCommand(
-	Diagram *dia,
-	const DiagramContent &diagram_content,
-	const QPointF &m,
-	QUndoCommand *parent
-) :
-	QUndoCommand    (parent),
-	diagram         (dia),
-	content_to_move (diagram_content),
-	movement        (m),
-	m_anim_group    (nullptr),
-	first_redo      (true)
-{
-	QString moved_content_sentence = content_to_move.sentence(
-		DiagramContent::Elements |
-		DiagramContent::TextFields |
-		DiagramContent::ConductorsToUpdate |
-		DiagramContent::ConductorsToMove |
-		DiagramContent::Images |
-		DiagramContent::Shapes |
-		DiagramContent::ElementTextFields |
-		DiagramContent::TerminalStrip
-	);
-	
-	setText(
-		QString(
-			QObject::tr(
-				"déplacer %1",
-				"undo caption - %1 is a sentence listing the moved content"
-			).arg(moved_content_sentence)
-		)
-	);
-}
-
-/**
-	@brief MoveElementsCommand::~MoveElementsCommand
-	Destructor
-*/
-MoveElementsCommand::~MoveElementsCommand()
-{
-	delete m_anim_group;
-}
-
-/**
-	@brief MoveElementsCommand::undo
-*/
-void MoveElementsCommand::undo()
-{
-	diagram -> showMe();
-	m_anim_group->setDirection(QAnimationGroup::Forward);
-	m_anim_group->start();
-	QUndoCommand::undo();
-}
-
-/**
-	@brief MoveElementsCommand::redo
-*/
-void MoveElementsCommand::redo()
-{
-	diagram -> showMe();
-	if (first_redo) {
-		first_redo = false;
-		move(-movement);
-	}
-	else {
-		m_anim_group->setDirection(QAnimationGroup::Backward);
-		m_anim_group->start();
-	}
-	QUndoCommand::redo();
-}
-
-/**
-	@brief MoveElementsCommand::move
-	Move item and conductor to actual_movement
-	@param actual_movement movement to be applied
-*/
-void MoveElementsCommand::move(const QPointF &actual_movement)
-{
-	typedef DiagramContent dc;
-
-	//Move every movable items, except conductor
-	for (auto &&qgi : content_to_move.items(dc::Elements
-											| dc::TextFields
-											| dc::Images
-											| dc::Shapes
-											| dc::TextGroup
-											| dc::ElementTextFields
-											| dc::Tables
-											| dc::TerminalStrip))
-	{
-		//If curent item have parent, and parent item is in content_to_move
-		//we don't apply movement to this item, because this item will be moved by is parent.
-		if (qgi->parentItem())
-			if (content_to_move.items().contains(qgi->parentItem()))
-					continue;
-		
-		if(qgi->toGraphicsObject())
-			setupAnimation(qgi->toGraphicsObject(), "pos",
-				       qgi->pos(), qgi->pos() + actual_movement);
-		else if(qgi->type() == QGraphicsItemGroup::Type)
-		{
-			//ElementTextItemGroup is a QObject but not a QGraphicsObject
-			if(ElementTextItemGroup *etig = dynamic_cast<ElementTextItemGroup *>(qgi))
-				setupAnimation(etig, "pos", etig->pos(),
-					       etig->pos() + actual_movement);
-		}
-		else qgi -> setPos(qgi->pos() + actual_movement);
-	}
-	
-	// Move some conductors
-	for (Conductor *conductor : content_to_move.m_conductors_to_move)
-		setupAnimation(conductor, "pos", conductor->pos(),
-			       conductor->pos() + actual_movement);
-	
-	// Recalcul the path of other conductor
-	for (Conductor *conductor : content_to_move.m_conductors_to_update)
-		setupAnimation(conductor, "animPath", 1, 1);
-}
-
-/**
-	@brief MoveElementsCommand::setupAnimation
-	Set up the animation for this undo command
-	@param target object to anim
-	@param propertyName property to animate
-	@param start value at start
-	@param end value at end
-*/
-void MoveElementsCommand::setupAnimation(QObject *target,
-					 const QByteArray &propertyName,
-					 const QVariant& start,
-					 const QVariant& end) {
-	//create animation group if not yet.
-	if (m_anim_group == nullptr) m_anim_group = new QParallelAnimationGroup();
-	QPropertyAnimation *animation = new QPropertyAnimation(target, propertyName);
-	animation->setDuration(300);
-	animation->setStartValue(start);
-	animation->setEndValue(end);
-	animation->setEasingCurve(QEasingCurve::OutQuad);
-	m_anim_group->addAnimation(animation);
-}
-
 /**
 	@brief MoveConductorsTextsCommand::MoveConductorsTextsCommand
 	Constructeur