Implement clipboard copy of selected item for emv-viewer

Author: leonlynch

viewer/emv-viewer-mainwindow.cpp

@@ -31,6 +31,7 @@
 #include <QtCore/QTimer>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QScrollBar>
+#include <QtGui/QClipboard>
 #include <QtGui/QDesktopServices>
 
 EmvViewerMainWindow::EmvViewerMainWindow(
@@ -290,6 +291,16 @@ void EmvViewerMainWindow::on_treeView_itemPressed(QTreeWidgetItem* item, int col
 	displayLegal();
 }
 
+void EmvViewerMainWindow::on_treeView_itemCopyClicked(QTreeWidgetItem* item)
+{
+	if (!item) {
+		return;
+	}
+
+	QString str = treeView->toClipboardText(item, QStringLiteral("  "), 0);
+	QApplication::clipboard()->setText(str);
+}
+
 void EmvViewerMainWindow::on_descriptionText_linkActivated(const QString& link)
 {
 	// Open link using external application

viewer/emv-viewer-mainwindow.h

@@ -59,6 +59,7 @@ private slots: // connect-by-name helper functions
 	void on_decodeFieldsCheckBox_stateChanged(int state);
 	void on_decodeObjectsCheckBox_stateChanged(int state);
 	void on_treeView_itemPressed(QTreeWidgetItem* item, int column);
+	void on_treeView_itemCopyClicked(QTreeWidgetItem* item);
 	void on_descriptionText_linkActivated(const QString& link);
 
 protected:

viewer/emvtreeview.cpp

@@ -114,6 +114,9 @@ void EmvTreeView::currentChanged(const QModelIndex& current, const QModelIndex&
 		QTreeWidgetItem* currentItem = itemFromIndex(current);
 		if (currentItem) {
 			EmvTreeItemCopyButton* button = new EmvTreeItemCopyButton(this);
+			connect(button, &QPushButton::clicked, this, [this, currentItem]() {
+				emit itemCopyClicked(currentItem);
+			});
 			setItemWidget(currentItem, 1, button);
 		}
 	}

viewer/emvtreeview.h

@@ -53,6 +53,9 @@ public slots:
 	void setDecodeObjects(bool enabled);
 	void setCopyButtonEnabled(bool enabled) { m_copyButtonEnabled = enabled; }
 
+signals:
+	void itemCopyClicked(QTreeWidgetItem* item);
+
 public:
 	QString toClipboardText(const QString& prefix, unsigned int depth) const;
 	QString toClipboardText(const QTreeWidgetItem* item, const QString& prefix, unsigned int depth) const;