Fixed bug in QTableView spans.

In some cases, the spans internal structure was left in an inconsistent
state. Auto-test included. Bonus: spans consistency checking method.

Task-number: QTBUG-5062
Reviewed-by: Olivier

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/auto/qtableview/tst_qtableview.cpp b/tests/auto/qtableview/tst_qtableview.cpp
index 8f8781d..fe2794f 100644
--- a/tests/auto/qtableview/tst_qtableview.cpp
+++ b/tests/auto/qtableview/tst_qtableview.cpp
@@ -41,6 +41,7 @@
 
 
 #include <QtGui/QtGui>
+#include <private/qtablewidget_p.h>
 #include <QtTest/QtTest>
 #include "../../shared/util.h"
 #include "private/qapplication_p.h"
@@ -58,6 +59,13 @@
         } \
     } while(0)
 
+#ifdef QT_BUILD_INTERNAL
+#define VERIFY_SPANS_CONSISTENCY(TEST_VIEW_) \
+    QVERIFY(static_cast<QTableViewPrivate*>(QObjectPrivate::get(TEST_VIEW_))->spans.checkConsistency())
+#else
+#define VERIFY_SPANS_CONSISTENCY(TEST_VIEW_) (void)false
+#endif
+
 typedef QList<int> IntList;
 Q_DECLARE_METATYPE(IntList)
 
@@ -188,6 +196,7 @@ private slots:
     void task248688_autoScrollNavigation();
     void task259308_scrollVerticalHeaderSwappedSections();
     void task191545_dragSelectRows();
+    void taskQTBUG_5062_spansInconsistency();
 
     void mouseWheel_data();
     void mouseWheel();
@@ -2899,6 +2908,8 @@ void tst_QTableView::span()
     view.clearSpans();
     QCOMPARE(view.rowSpan(row, column), 1);
     QCOMPARE(view.columnSpan(row, column), 1);
+
+    VERIFY_SPANS_CONSISTENCY(&view);
 }
 
 typedef QVector<QRect> SpanList;
@@ -3034,6 +3045,8 @@ void tst_QTableView::spans()
 
     QCOMPARE(view.columnSpan(pos.x(), pos.y()), expectedColumnSpan);
     QCOMPARE(view.rowSpan(pos.x(), pos.y()), expectedRowSpan);
+
+    VERIFY_SPANS_CONSISTENCY(&view);
 }
 
 void tst_QTableView::spansAfterRowInsertion()
@@ -3068,6 +3081,8 @@ void tst_QTableView::spansAfterRowInsertion()
     view.model()->insertRows(12, 2);
     QCOMPARE(view.rowSpan(7, 3), 5);
     QCOMPARE(view.columnSpan(7, 3), 3);
+
+    VERIFY_SPANS_CONSISTENCY(&view);
 }
 
 void tst_QTableView::spansAfterColumnInsertion()
@@ -3102,6 +3117,8 @@ void tst_QTableView::spansAfterColumnInsertion()
     view.model()->insertColumns(12, 2);
     QCOMPARE(view.rowSpan(3, 7), 3);
     QCOMPARE(view.columnSpan(3, 7), 5);
+
+    VERIFY_SPANS_CONSISTENCY(&view);
 }
 
 void tst_QTableView::spansAfterRowRemoval()
@@ -3139,6 +3156,8 @@ void tst_QTableView::spansAfterRowRemoval()
         QCOMPARE(view.columnSpan(span.top(), span.left()), span.width());
         QCOMPARE(view.rowSpan(span.top(), span.left()), span.height());
     }
+
+    VERIFY_SPANS_CONSISTENCY(&view);
 }
 
 void tst_QTableView::spansAfterColumnRemoval()
@@ -3177,6 +3196,8 @@ void tst_QTableView::spansAfterColumnRemoval()
         QCOMPARE(view.columnSpan(span.left(), span.top()), span.height());
         QCOMPARE(view.rowSpan(span.left(), span.top()), span.width());
     }
+
+    VERIFY_SPANS_CONSISTENCY(&view);
 }
 
 class Model : public QAbstractTableModel {
@@ -3845,5 +3866,22 @@ void tst_QTableView::task234926_setHeaderSorting()
     QCOMPARE(model.stringList() , sortedDataD);
 }
 
+void tst_QTableView::taskQTBUG_5062_spansInconsistency()
+{
+    const int nRows = 5;
+    const int nColumns = 5;
+
+    QtTestTableModel model(nRows, nColumns);
+    QtTestTableView view;
+    view.setModel(&model);
+
+    for (int i = 0; i < nRows; ++i)
+       view.setSpan(i, 0, 1, nColumns);
+    view.setSpan(2, 0, 1, 1);
+    view.setSpan(3, 0, 1, 1);
+
+    VERIFY_SPANS_CONSISTENCY(&view);
+}
+
 QTEST_MAIN(tst_QTableView)
 #include "tst_qtableview.moc"