Add filemanager

src/filemanager.h

@@ -0,0 +1,57 @@
+#ifndef FILEMANAGER_H
+#define FILEMANAGER_H
+
+#include <QMainWindow>
+#include <QCache>
+#include <QFileSystemModel>
+#include <QTreeView>
+#include "imageinfodata.h"
+
+namespace Ui {
+class FileManager;
+}
+
+class FileManager : public QMainWindow
+{
+    Q_OBJECT
+public:
+    explicit FileManager(const QSet<QString> &openFilter, QWidget *parent = nullptr);
+    ~FileManager();
+signals:
+    void openFile(const QString &path);
+private:
+    Ui::FileManager *ui;
+};
+
+class DirFileSystemModel : public QFileSystemModel
+{
+    mutable QCache<QString, ImageInfoData> *_cache = nullptr;
+    static QCache<QString, ImageInfoData>* getCacheInstance();
+    QModelIndex _dir;
+public:
+    explicit DirFileSystemModel(QObject *parent = nullptr);
+    void setDir(const QString &path);
+    QString dir() const;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+    bool hasChildren(const QModelIndex &parent) const override;
+};
+
+class DirView : public QTreeView
+{
+    Q_OBJECT
+    DirFileSystemModel *_dirFileSystemModel = nullptr;
+    QSet<QString> _openFilter;
+public:
+    explicit DirView(QWidget *parent = nullptr);
+    void setDir(const QString &path);
+    QString dir() const;
+    void setOpenFilter(const QSet<QString> &openFilter);
+signals:
+    void dirChanged(const QString &path);
+    void openFile(const QString &path);
+};
+
+#endif // FILEMANAGER_H