Add Filetree dock

filesystemwidget.cpp

@@ -1,6 +1,10 @@
 #include "filesystemwidget.h"
 #include <QSettings>
 #include <QVBoxLayout>
+#include <QContextMenuEvent>
+#include <QMenu>
+#include <QSettings>
+#include <QHeaderView>
 
 FilesystemWidget::FilesystemWidget(QAbstractItemModel *model, QWidget *parent) : QWidget(parent)
   , m_model(model)
@@ -34,3 +38,62 @@ void FilesystemWidget::fileClicked(const QModelIndex &index)
 {
     emit fileSelected(index.row());
 }
+
+Filetree::Filetree(QWidget *parent) : QTreeView(parent)
+{
+    QSettings settings;
+    m_rootDir = settings.value("filetree/rootDir", QDir::homePath()).toString();
+    m_fileSystemModel = new QFileSystemModel(this);
+    m_fileSystemModel->setRootPath(m_rootDir);
+    m_fileSystemModel->setNameFilters({"*.fits", "*.fit", "*.xisf", "*.jpg", "*.jpeg", "*.png"});
+    m_fileSystemModel->setNameFilterDisables(false);
+    setModel(m_fileSystemModel);
+    setRootIndex(m_fileSystemModel->index(m_rootDir));
+    header()->restoreState(settings.value("filetree/header").toByteArray());
+}
+
+Filetree::~Filetree()
+{
+    QSettings settings;
+    settings.setValue("filetree/rootDir", m_rootDir);
+    settings.setValue("filetree/header", header()->saveState());
+}
+
+void Filetree::contextMenuEvent(QContextMenuEvent *event)
+{
+    QModelIndex index = indexAt(event->pos());
+    QFileInfo info = m_fileSystemModel->fileInfo(index);
+    QMenu menu;
+    QAction *open = nullptr;
+    QAction *setRoot = nullptr;
+
+    if(info.isFile())
+        open = menu.addAction(tr("Open"));
+
+    if(info.isDir())
+        setRoot = menu.addAction("Set as root");
+
+    QAction *resetRoot = menu.addAction("Reset root");
+    QAction *goUp = menu.addAction("Go up");
+
+    QAction *a = menu.exec(event->globalPos());
+    if(a == open)
+    {
+        emit fileSelected(m_fileSystemModel->filePath(index));
+    }
+    if(a == setRoot && index.isValid())
+    {
+        setRootIndex(index);
+        m_rootDir = m_fileSystemModel->filePath(index);
+    }
+    else if(a == resetRoot)
+    {
+        setRootIndex(QModelIndex());
+        m_rootDir = QDir::rootPath();
+    }
+    else if(a == goUp)
+    {
+        setRootIndex(rootIndex().parent());
+        m_rootDir = m_fileSystemModel->filePath(rootIndex().parent());
+    }
+}