Add widget replace function to QLayout

Sometimes it is nice to be able to replace a widget in a layout.

Change-Id: I23a6a65e417e94d53bc48639503db1a142bc3f10
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/widgets/kernel/qgridlayout.cpp b/src/widgets/kernel/qgridlayout.cpp
index 96820e3891..7da2104971 100644
--- a/src/widgets/kernel/qgridlayout.cpp
+++ b/src/widgets/kernel/qgridlayout.cpp
@@ -85,6 +85,7 @@ public:
     void setGeometry(const QRect &r) { item_->setGeometry(r); }
     Qt::Alignment alignment() const { return item_->alignment(); }
     QLayoutItem *item() { return item_; }
+    void setItem(QLayoutItem *newitem) { item_ = newitem; }
     QLayoutItem *takeItem() { QLayoutItem *i = item_; item_ = 0; return i; }
 
     int hStretch() { return item_->widget() ?
@@ -171,6 +172,18 @@ public:
         }
         return 0;
     }
+    QLayoutItem* replaceAt(int index, QLayoutItem *newitem) Q_DECL_OVERRIDE
+    {
+        if (!newitem)
+            return 0;
+        QLayoutItem *item = 0;
+        QGridBox *b = things.value(index);
+        if (b) {
+            item = b->takeItem();
+            b->setItem(newitem);
+        }
+        return item;
+    }
 
     void getItemPosition(int index, int *row, int *column, int *rowSpan, int *columnSpan) const {
         if (index < things.count()) {