QML UI: brute force around Qt 5.6.0 bug

With the current release candidate of Qt 5.6.0 we get into an infinite
recursion of the grid layout engine. This had happened before (prior to the 5.6
beta) and it appeared that setting the maximum width of the columns was
sufficient to fix this. But with the RC even that isn't sufficient, so now we
give up on having QML figure out the best possible column width and hard code
both preferred and maximum width to the same, predefined values. That's a total
shame, but at least now we can build against Qt 5.6 without infinite recursions
and crashes.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-mobile/qml/DiveDetailsView.qml

@@ -148,6 +148,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col1Width
+			Layout.preferredWidth: detailsView.col1Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -155,6 +156,7 @@ Item {
 			text: dive.suit
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col2Width
+			Layout.preferredWidth: detailsView.col2Width
 		}
 
 		MobileComponents.Label {
@@ -162,6 +164,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col3Width
+			Layout.preferredWidth: detailsView.col3Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -169,6 +172,7 @@ Item {
 			text: dive.airTemp
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col4Width
+			Layout.preferredWidth: detailsView.col4Width
 		}
 
 		MobileComponents.Label {
@@ -176,6 +180,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col1Width
+			Layout.preferredWidth: detailsView.col1Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -183,6 +188,7 @@ Item {
 			text: dive.getCylinder
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col2Width
+			Layout.preferredWidth: detailsView.col2Width
 		}
 
 		MobileComponents.Label {
@@ -190,6 +196,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col3Width
+			Layout.preferredWidth: detailsView.col3Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -197,6 +204,7 @@ Item {
 			text: dive.waterTemp
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col4Width
+			Layout.preferredWidth: detailsView.col4Width
 		}
 
 		MobileComponents.Label {
@@ -204,6 +212,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col1Width
+			Layout.preferredWidth: detailsView.col1Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -211,6 +220,7 @@ Item {
 			text: dive.divemaster
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col2Width
+			Layout.preferredWidth: detailsView.col2Width
 		}
 
 		MobileComponents.Label {
@@ -218,6 +228,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col3Width
+			Layout.preferredWidth: detailsView.col3Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -225,6 +236,7 @@ Item {
 			text: dive.sumWeight
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col4Width
+			Layout.preferredWidth: detailsView.col4Width
 		}
 
 		MobileComponents.Label {
@@ -232,6 +244,7 @@ Item {
 			wrapMode: Text.WrapAtWordBoundaryOrAnywhere
 			opacity: 0.6
 			Layout.maximumWidth: detailsView.col1Width
+			Layout.preferredWidth: detailsView.col1Width
 			Layout.alignment: Qt.AlignRight
 		}
 		MobileComponents.Label {
@@ -240,6 +253,7 @@ Item {
 			Layout.columnSpan: 3
 			wrapMode: TextEdit.WrapAtWordBoundaryOrAnywhere
 			Layout.maximumWidth: detailsView.col2Width + detailsView.col3Width + detailsView.col4Width
+			Layout.preferredWidth: detailsView.col2Width + detailsView.col3Width + detailsView.col4Width
 		}
 
 		MobileComponents.Heading {