git.sesse.net Git - nageru/blob - futatabi/mainwindow.h

   1 #ifndef MAINWINDOW_H
   2 #define MAINWINDOW_H
   3
   4 #include "clip_list.h"
   5 #include "db.h"
   6 #include "state.pb.h"
   7
   8 #include <QLabel>
   9 #include <QMainWindow>
  10 #include <QNetworkAccessManager>
  11 #include <deque>
  12 #include <memory>
  13 #include <mutex>
  14 #include <stdbool.h>
  15 #include <string>
  16 #include <sys/types.h>
  17 #include <utility>
  18
  19 namespace Ui {
  20 class MainWindow;
  21 }  // namespace Ui
  22
  23 struct FrameOnDisk;
  24 class JPEGFrameView;
  25 class Player;
  26 class QPushButton;
  27 class QTableView;
  28
  29 class MainWindow : public QMainWindow {
  30         Q_OBJECT
  31
  32 public:
  33         MainWindow();
  34         ~MainWindow();
  35
  36         // HTTP callback. TODO: Does perhaps not belong to MainWindow?
  37         std::pair<std::string, std::string> get_queue_status() const;
  38
  39         void display_frame(unsigned stream_idx, const FrameOnDisk &frame);
  40
  41 private:
  42         Ui::MainWindow *ui;
  43
  44         QLabel *disk_free_label;
  45         std::unique_ptr<Player> preview_player, live_player;
  46         DB db;
  47         unsigned num_cameras;
  48
  49         // State when doing a scrub operation on a timestamp with the mouse.
  50         bool scrubbing = false;
  51         int scrub_x_origin;  // In pixels on the viewport.
  52         int64_t scrub_pts_origin;
  53
  54         // Which element (e.g. pts_in on clip 4) we are scrubbing.
  55         enum ScrubType { SCRUBBING_CLIP_LIST,
  56                          SCRUBBING_PLAYLIST } scrub_type;
  57         int scrub_row;
  58         int scrub_column;
  59
  60         // Used to keep track of small mouse wheel motions on the camera index in the playlist.
  61         int last_mousewheel_camera_row = -1;
  62         int leftover_angle_degrees = 0;
  63
  64         // Some operations, notably scrubbing and scrolling, happen in so large increments
  65         // that we want to group them instead of saving to disk every single time.
  66         // If they happen (ie., we get a callback from the model that it's changed) while
  67         // currently_deferring_model_changes, we fire off this timer. If it manages to elapse
  68         // before some other event happens, we count the event. (If the other event is of the
  69         // same kind, we just fire off the timer anew instead of taking any action.)
  70         QTimer *defer_timeout;
  71         std::string deferred_change_id;
  72         StateProto deferred_state;
  73
  74         // NOTE: The undo stack always has the current state on top.
  75         std::deque<StateProto> undo_stack, redo_stack;
  76
  77         // Before a change that should be deferred (see above), currently_deferring_model_changes
  78         // must be set to true, and current_change_id must be given contents describing what's
  79         // changed to avoid accidental grouping.
  80         bool currently_deferring_model_changes = false;
  81         std::string current_change_id;
  82
  83         mutable std::mutex queue_status_mu;
  84         std::string queue_status;  // Under queue_status_mu.
  85
  86         struct FrameAndDisplay {
  87                 QFrame *frame;
  88                 JPEGFrameView *display;
  89                 QPushButton *preview_btn;
  90         };
  91         std::vector<FrameAndDisplay> displays;
  92
  93         // Used to get tally information, if a tally URL is set.
  94         QNetworkAccessManager http;
  95         QNetworkReply *http_reply = nullptr;
  96
  97         void change_num_cameras();
  98         void cue_in_clicked();
  99         void cue_out_clicked();
 100         void queue_clicked();
 101         void preview_clicked();
 102         void preview_angle_clicked(unsigned stream_idx);
 103         void play_clicked();
 104         void stop_clicked();
 105         void live_player_done();
 106         void live_player_clip_progress(const std::map<uint64_t, double> &progress, double time_remaining);
 107         void set_output_status(const std::string &status);
 108         void playlist_duplicate();
 109         void playlist_remove();
 110         void playlist_move(int delta);
 111
 112         void defer_timer_expired();
 113         void content_changed();  // In clip_list or play_list.
 114         void state_changed(const StateProto &state);  // Called post-filtering.
 115         void save_settings();
 116
 117         enum Rounding { FIRST_AT_OR_AFTER,
 118                         LAST_BEFORE };
 119         void preview_single_frame(int64_t pts, unsigned stream_idx, Rounding rounding);
 120
 121         // Also covers when the playlist itself changes.
 122         void playlist_selection_changed();
 123
 124         void clip_list_selection_changed(const QModelIndex &current, const QModelIndex &previous);
 125
 126         void resizeEvent(QResizeEvent *event) override;
 127         bool eventFilter(QObject *watched, QEvent *event) override;
 128
 129         void report_disk_space(off_t free_bytes, double estimated_seconds_left);
 130         void exit_triggered();
 131         void export_cliplist_clip_multitrack_triggered();
 132         void export_playlist_clip_interpolated_triggered();
 133         void manual_triggered();
 134         void about_triggered();
 135         void undo_triggered();
 136         void redo_triggered();
 137         void quality_toggled(int quality, bool checked);
 138         void padding_toggled(double seconds, bool checked);
 139
 140         void highlight_camera_input(int stream_idx);
 141         void enable_or_disable_preview_button();
 142         void enable_or_disable_queue_button();
 143
 144         template<class Model>
 145         void replace_model(QTableView *view, Model **model, Model *new_model);
 146
 147         void start_tally();
 148         void tally_received();
 149
 150 private slots:
 151         void relayout();
 152 };
 153
 154 extern MainWindow *global_mainwindow;
 155
 156 #endif