ui: double click in project setup list box to add new item

src/lib_gui/qt/element/QtListBox.cpp

@@ -1,16 +1,14 @@
 #include "QtListBox.h"
 
 #include <QBoxLayout>
-#include <QListWidget>
 #include <QLabel>
-#include <QListWidget>
 #include <QScrollBar>
 
 #include "QtIconButton.h"
 #include "QtStringListBoxItem.h"
-#include "utilityQt.h"
 #include "QtTextEditDialog.h"
 #include "ResourcePaths.h"
+#include "utilityQt.h"
 #include "utilityString.h"
 
 QtListBox::QtListBox(QWidget *parent, const QString& listName)
@@ -22,9 +20,10 @@ QtListBox::QtListBox(QWidget *parent, const QString& listName)
 	layout->setContentsMargins(0, 6, 0, 0);
 	layout->setAlignment(Qt::AlignTop);
 
-	m_list = new QListWidget(this);
+	m_list = new QtListWidget(this);
 	m_list->setObjectName("list");
 	m_list->setAttribute(Qt::WA_MacShowFocusRect, 0);
+	connect(m_list, &QListWidget::doubleClicked, this, &QtListBox::doubleClicked);
 
 	setStyleSheet(utility::getStyleSheet(ResourcePaths::getGuiPath().concatenate(L"window/listbox.css")).c_str());
 	layout->addWidget(m_list, 5);
@@ -244,3 +243,11 @@ void QtListBox::savedEditDialog()
 
 	canceledEditDialog();
 }
+
+void QtListBox::doubleClicked(const QModelIndex& index)
+{
+	if (!index.isValid())
+	{
+		addListBoxItem();
+	}
+}

src/lib_gui/qt/element/QtListBox.h

@@ -2,18 +2,37 @@
 #define QT_LIST_BOX_H
 
 #include <QFrame>
+#include <QListWidget>
 
 #include "FilePath.h"
 
 class QEvent;
 class QHBoxLayout;
-class QListWidget;
 class QListWidgetItem;
 class QPushButton;
 
 class QtTextEditDialog;
 class QtListBoxItem;
 
+class QtListWidget
+	: public QListWidget
+{
+	Q_OBJECT
+
+public:
+	QtListWidget(QWidget* parent = nullptr)
+		: QListWidget(parent)
+	{
+	}
+
+protected:
+	void mouseDoubleClickEvent(QMouseEvent* event) override
+	{
+		QModelIndex index;
+		emit doubleClicked(index);
+	}
+};
+
 class QtListBox
 	: public QFrame
 {
@@ -33,7 +52,7 @@ protected:
 	void addWidgetToBar(QWidget* widget);
 	bool event(QEvent* event) override;
 
-	QListWidget* m_list;
+	QtListWidget* m_list;
 
 protected slots:
 	QtListBoxItem* addListBoxItem();
@@ -43,6 +62,9 @@ protected slots:
 	void canceledEditDialog();
 	void savedEditDialog();
 
+private slots:
+	void doubleClicked(const QModelIndex& index);
+
 private:
 	virtual QtListBoxItem* createListBoxItem(QListWidgetItem* item) = 0;