Fix crash with empty attribute list

manisandro · m-kuhn · commit a704b9fad08f · 2014-04-30T14:05:34.000+02:00
diff --git a/src/gui/qgsattributedialog.cpp b/src/gui/qgsattributedialog.cpp
@@ -285,9 +285,9 @@ void QgsAttributeDialog::init()
     // Set focus to first widget in list, to help entering data without moving the mouse.
     if ( mypInnerLayout->rowCount() > 0 )
     {
-      QWidget* widget = mypInnerLayout->itemAtPosition( 0, 1 )->widget();
-      if ( widget )
-        widget->setFocus( Qt::OtherFocusReason );
+      QLayoutItem* item = mypInnerLayout->itemAtPosition( 0, 1 );
+      if ( item && item->widget() )
+        item->widget()->setFocus( Qt::OtherFocusReason );
     }
 
     QSpacerItem *mypSpacer = new QSpacerItem( 0, 0, QSizePolicy::Fixed, QSizePolicy::MinimumExpanding );

Original file line number	Diff line number	Diff line change
`@@ -285,9 +285,9 @@ void QgsAttributeDialog::init()`
`285`	`285`	`// Set focus to first widget in list, to help entering data without moving the mouse.`
`286`	`286`	`if ( mypInnerLayout->rowCount() > 0 )`
`287`	`287`	`{`
`288`		`- QWidget* widget = mypInnerLayout->itemAtPosition( 0, 1 )->widget();`
`289`		`- if ( widget )`
`290`		`- widget->setFocus( Qt::OtherFocusReason );`
	`288`	`+ QLayoutItem* item = mypInnerLayout->itemAtPosition( 0, 1 );`
	`289`	`+ if ( item && item->widget() )`
	`290`	`+ item->widget()->setFocus( Qt::OtherFocusReason );`
`291`	`291`	`}`
`292`	`292`
`293`	`293`	`QSpacerItem *mypSpacer = new QSpacerItem( 0, 0, QSizePolicy::Fixed, QSizePolicy::MinimumExpanding );`