fix crash: CoinControl "space" bug

Just like https://github.com/novacoin-project/novacoin/commit/baf80c26a2e7f1ba6061d63d174eff0a09111e6f

1 files changed, 3 insertions, 2 deletions

diff --git a/src/qt/coincontroltreewidget.cpp b/src/qt/coincontroltreewidget.cpp
index 6cbcf7128d..5dcbf0c3f1 100644
--- a/src/qt/coincontroltreewidget.cpp
+++ b/src/qt/coincontroltreewidget.cpp
@@ -17,7 +17,8 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     {
         event->ignore();
         int COLUMN_CHECKBOX = 0;
-        this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
+        if(this->currentItem())
+            this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
     }
     else if (event->key() == Qt::Key_Escape) // press esc -> close dialog
     {
@@ -29,4 +30,4 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     {
         this->QTreeWidget::keyPressEvent(event);
     }
-}
\ No newline at end of file
+}