some (but not all) compatibility changes for qt 4.6

cockatrice/src/handzone.cpp

@@ -31,29 +31,29 @@ void HandZone::paint(QPainter *painter, const QStyleOptionGraphicsItem */*option
 
 void HandZone::reorganizeCards()
 {
-	if (cards.isEmpty())
-		return;
-
-	const int cardCount = cards.size();
-	qreal totalWidth = boundingRect().width();
-	qreal totalHeight = boundingRect().height();
-	qreal cardWidth = cards.at(0)->boundingRect().width();
-	qreal cardHeight = cards.at(0)->boundingRect().height();
-	qreal xspace = 5;
-	qreal x1 = xspace;
-	qreal x2 = totalWidth - xspace - cardWidth;
-
-	for (int i = 0; i < cardCount; i++) {
-		CardItem *c = cards.at(i);
-		qreal x = i % 2 ? x2 : x1;
-		// If the total height of the cards is smaller than the available height,
-		// the cards do not need to overlap and are displayed in the center of the area.
-		if (cardHeight * cardCount > totalHeight)
-			c->setPos(x, ((qreal) i) * (totalHeight - cardHeight) / (cardCount - 1));
-		else
-			c->setPos(x, ((qreal) i) * cardHeight + (totalHeight - cardCount * cardHeight) / 2);
-		c->setZValue(i);
+	if (!cards.isEmpty()) {
+		const int cardCount = cards.size();
+		qreal totalWidth = boundingRect().width();
+		qreal totalHeight = boundingRect().height();
+		qreal cardWidth = cards.at(0)->boundingRect().width();
+		qreal cardHeight = cards.at(0)->boundingRect().height();
+		qreal xspace = 5;
+		qreal x1 = xspace;
+		qreal x2 = totalWidth - xspace - cardWidth;
+	
+		for (int i = 0; i < cardCount; i++) {
+			CardItem *c = cards.at(i);
+			qreal x = i % 2 ? x2 : x1;
+			// If the total height of the cards is smaller than the available height,
+			// the cards do not need to overlap and are displayed in the center of the area.
+			if (cardHeight * cardCount > totalHeight)
+				c->setPos(x, ((qreal) i) * (totalHeight - cardHeight) / (cardCount - 1));
+			else
+				c->setPos(x, ((qreal) i) * cardHeight + (totalHeight - cardCount * cardHeight) / 2);
+			c->setZValue(i);
+		}
 	}
+	update();
 }
 
 void HandZone::addCardImpl(CardItem *card, int x, int /*y*/)

cockatrice/src/tablezone.cpp

@@ -73,6 +73,7 @@ void TableZone::handleDropEventByGrid(int cardId, CardZone *startZone, const QPo
 
 void TableZone::reorganizeCards()
 {
+	update();
 }
 
 void TableZone::toggleTapped()

cockatrice/src/zoneviewzone.cpp

@@ -127,6 +127,7 @@ void ZoneViewZone::removeCard(int position)
 
 void ZoneViewZone::setGeometry(const QRectF &rect)
 {
+	prepareGeometryChange();
 	setPos(rect.topLeft());
 	height = rect.height();
 	reorganizeCards();