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project/fm_viewer/ui/fm_thumbnail_dialog.h

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+#ifndef FM_THUMBNAIL_H
+#define FM_THUMBNAIL_H
+#include "../rm_include.h"
+#if (RM_MODEL == RM_MODEL_TYPE_TB4000)
+#define DYNAMIC_THUMBNAIL 1
+
+#define MULTI_THUMBNAIL_ONLY            1     // SINGLE 모드 제거
+#define FIXED_SIZE_THUMBNAIL            1     // 고정 크기
+#define THUMBNAIL_ITEM_CONNECT_EACH     1     // FMSIGNAL 로 연결
+#define THUMBNAIL_DIALOG_SNAP           1     // 크기 조정
+#include <QDialog>
+#include <QObject>
+#include <QWidget>
+class QScrollArea;
+class QVBoxLayout;
+class RMVideoItem;
+#include <QStyledItemDelegate>
+#include <QDateTime>
+class FMThumbnailDelegate;
+class QItemSelection;
+class FMButton;
+
+class QTableWidget;
+#if (DETECT_USB_CHANGE)
+class rm_usb;
+#endif
+
+class FMThumbnailDialog : public QDialog
+{
+    Q_OBJECT
+public:
+#if (USE_DATE_FILTER)
+    FMThumbnailDialog(QWidget *parent, QString folder);
+#else // USE_DATE_FILTER
+    FMThumbnailDialog(QWidget *parent, bool bAll);
+#endif // USE_DATE_FILTER
+    enum MODE {
+        MODE_SIMPLE,        // 심플 아이템 표시
+        MODE_SUB            // 심플 아이템에 포함된 모든 영상
+    };
+
+    QString selectedFile;
+
+protected:
+    bool _bFirst;
+
+#if (DETECT_USB_CHANGE)
+    rm_usb* _usb;   // 메인 윈도우의 참조
+#endif // #if (DETECT_USB_CHANGE)
+
+#if (USE_DATE_FILTER)
+    QString _folder;
+    static QStringList _files;
+    QList<RMVideoItem*> _items;             // 멀티에서만 사용
+#endif // #if (USE_DATE_FILTER)
+#if (USE_1HOUR_FILTER)
+    QDateTime _selectedDateTime;                    ///!< 선택된 영상 시간
+    static QList<RMVideoItem*> _items;              ///!< 시간 및 재생처리를 위해..
+    static QList<QPair<QString,QString>> _thumbnails;      ///!< 로딩된 Thumbnail 경로
+    FMButton* _backButton;                          ///!< 세부->1시간으로 돌아가기 버튼
+    QLabel* _titleBar;                              ///!< 1시간 및 세부 리스트에서 표시되는 타이틀
+#endif
+
+    QModelIndex _lastIndex;                 // 1시간 리스트에서 전체 리스트로 이동시
+    //QString windowTitle;
+    MODE _mode;
+    QTableWidget* _tableView;
+    FMThumbnailDelegate* _delegate;
+
+    void createLayout(MODE mode,RMVideoItem* selected = NULL);
+    void closeEvent(QCloseEvent *event);
+    void showEvent(QShowEvent * event);
+#if (USE_DATE_FILTER)
+    void loadThumbnails(QString folder);
+#else
+    void loadThumbnails();
+#endif // #if (USE_DATE_FILTER)
+public slots:
+    void onLoadThumbnails();
+
+    //void onThumbnailLoaded(RMVideoItem* item); // FMThumbnail* thumbnail,
+    //void onProcessFinished();
+#if (USE_1HOUR_FILTER)
+    void onBack();
+#endif // #if (USE_1HOUR_FILTER)
+
+    void onSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
+
+    friend class FMThumbnailDelegate;
+    void scrollTo();
+    void onThumbnailUpdated(int);
+
+    void onDoubleClickItem(int row, int column);
+
+    void onEnableClick(); ///! 더블클릭 방지용
+
+#if (DETECT_USB_CHANGE)
+    void onUSBChange(bool inserted, QString& drive);
+#endif // #if (DETECT_USB_CHANGE)
+};
+
+
+class thumbnail_cache : public QObject
+{
+    Q_OBJECT
+private:
+    thumbnail_cache(QObject* parent = nullptr);
+    QMap<QString,QPixmap> cache;
+    QPixmap _load(QString path, const QSize& wh);
+    QPixmap _dummy;
+public:
+    const QPixmap thumbnail(const QString path,int index, const QSize& wh);
+
+    static thumbnail_cache* instance() {
+        static thumbnail_cache _instance;
+        return &_instance;
+    }
+    void clear() {
+        cache.clear();
+    }
+
+signals:
+    void thumbnailLoaded(int index);
+};
+
+class FMThumbnailDelegate : public QStyledItemDelegate
+{
+    Q_OBJECT
+public:
+    explicit FMThumbnailDelegate(QObject *parent = 0);
+    void paint(QPainter *painter, const QStyleOptionViewItem &option,
+               const QModelIndex &index) const;
+private:
+    QPersistentModelIndex currentEditedCellIndex;
+    FMThumbnailDialog* _dialog;
+public slots:
+    void entered(const QModelIndex &index);
+};
+
+// PROCESS 강제 종료하기 위해 사용
+class FMThumbnailSignal : public QObject {
+    Q_OBJECT
+private:
+    static FMThumbnailSignal* _instance;
+public:
+    enum SIGNAL_MODE {
+        MODE_REJECT,    // 종료(닫기, 취소)
+        MODE_ACCEPT,    // 선택됨
+        MODE_RESTART    // 다른 썸네일 로딩
+    };
+    static FMThumbnailSignal* instance()
+    {
+        if(_instance == NULL)
+        {
+            _instance = new FMThumbnailSignal();
+        }
+        return _instance;
+    }
+    SIGNAL_MODE mode;
+    FMThumbnailDialog::MODE restartMode;
+    RMVideoItem* restartItem;
+
+signals:
+    void finished();
+    void thumnbnailsLoaded(RMVideoItem* item);
+};
+
+
+#endif // #if (RM_MODEL == RM_MODEL_TYPE_TB4000)
+#endif // FM_THUMBNAIL_H