added clear action for browsing history

1 files changed, 16 insertions, 0 deletions

diff --git a/gui/designwidget.cc b/gui/designwidget.cc
index 5181cd23..93f71355 100644
--- a/gui/designwidget.cc
+++ b/gui/designwidget.cc
@@ -125,11 +125,27 @@ DesignWidget::DesignWidget(QWidget *parent) : QWidget(parent), ctx(nullptr), net
         updateButtons();

     });

 

+    actionClear = new QAction("", this);

+    actionClear->setIcon(QIcon(":/icons/resources/cross.png"));

+    actionClear->setEnabled(true);

+    connect(actionClear, &QAction::triggered, this, [this] {

+        history_index = -1;

+        history.clear();

+        QTreeWidgetItem *clickItem = treeWidget->selectedItems().at(0);

+        if (clickItem->parent()) {

+            ElementType type = static_cast<ElementTreeItem *>(clickItem)->getType();

+            if (type != ElementType::NONE)

+                addToHistory(treeWidget->selectedItems().at(0));

+        }

+        updateButtons();

+    });

+

     QToolBar *toolbar = new QToolBar();

     toolbar->addAction(actionFirst);

     toolbar->addAction(actionPrev);

     toolbar->addAction(actionNext);

     toolbar->addAction(actionLast);

+    toolbar->addAction(actionClear);

 

     QWidget *topWidget = new QWidget();

     QVBoxLayout *vbox1 = new QVBoxLayout();