]> git.sesse.net Git - nageru/blobdiff - mainwindow.cpp
Serialize state to disk between runs, using SQLite.
[nageru] / mainwindow.cpp
index 0d9e80a4752a5d13cb882c7cdddf3a4e321ede55..cfc976965bfb4988efb82bec69cb4978c94666ba 100644 (file)
@@ -12,6 +12,9 @@
 #include <QMouseEvent>
 #include <QWheelEvent>
 #include <QShortcut>
+#include <QTimer>
+
+#include <sqlite3.h>
 
 using namespace std;
 
@@ -24,16 +27,21 @@ extern mutex frame_mu;
 extern vector<int64_t> frames[MAX_STREAMS];
 
 MainWindow::MainWindow()
-       : ui(new Ui::MainWindow)
+       : ui(new Ui::MainWindow),
+         db("futatabi.db")
 {
        global_mainwindow = this;
        ui->setupUi(this);
 
-       cliplist_clips = new ClipList();
+       StateProto state = db.get_state();
+
+       cliplist_clips = new ClipList(state.clip_list());
        ui->clip_list->setModel(cliplist_clips);
+       connect(cliplist_clips, &ClipList::any_content_changed, this, &MainWindow::content_changed);
 
-       playlist_clips = new PlayList();
+       playlist_clips = new PlayList(state.play_list());
        ui->playlist->setModel(playlist_clips);
+       connect(playlist_clips, &PlayList::any_content_changed, this, &MainWindow::content_changed);
 
        // For scrubbing in the pts columns.
        ui->clip_list->viewport()->installEventFilter(this);
@@ -113,6 +121,10 @@ MainWindow::MainWindow()
                        live_player_clip_progress(played_this_clip, total_length);
                });
        });
+
+       defer_timeout = new QTimer(this);
+       defer_timeout->setSingleShot(true);
+       connect(defer_timeout, &QTimer::timeout, this, &MainWindow::defer_timer_expired);
 }
 
 void MainWindow::cue_in_clicked()
@@ -252,6 +264,37 @@ void MainWindow::playlist_move(int delta)
        playlist_selection_changed();
 }
 
+void MainWindow::defer_timer_expired()
+{
+       state_changed(deferred_state);
+}
+
+void MainWindow::content_changed()
+{
+       if (defer_timeout->isActive() &&
+           (!currently_deferring_model_changes || deferred_change_id != current_change_id)) {
+               // There's some deferred event waiting, but this event is unrelated.
+               // So it's time to short-circuit that timer and do the work it wanted to do.
+               defer_timeout->stop();
+               state_changed(deferred_state);
+       }
+       StateProto state;
+       *state.mutable_clip_list() = cliplist_clips->serialize();
+       *state.mutable_play_list() = playlist_clips->serialize();
+       if (currently_deferring_model_changes) {
+               deferred_change_id = current_change_id;
+               deferred_state = std::move(state);
+               defer_timeout->start(200);
+               return;
+       }
+       state_changed(state);
+}
+
+void MainWindow::state_changed(const StateProto &state)
+{
+       db.store_state(state);
+}
+
 void MainWindow::play_clicked()
 {
        if (playlist_clips->empty()) return;
@@ -405,13 +448,15 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
                        }
 
                        int64_t pts = scrub_pts_origin + adjusted_offset * scrub_sensitivity;
-
+                       currently_deferring_model_changes = true;
                        if (scrub_type == SCRUBBING_CLIP_LIST) {
                                ClipProxy clip = cliplist_clips->mutable_clip(scrub_row);
                                if (scrub_column == int(ClipList::Column::IN)) {
+                                       current_change_id = "cliplist:in:" + to_string(scrub_row);
                                        set_pts_in(pts, current_pts, clip);
                                        preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
                                } else {
+                                       current_change_id = "cliplist:out" + to_string(scrub_row);
                                        pts = std::max(pts, clip->pts_in);
                                        pts = std::min(pts, current_pts);
                                        clip->pts_out = pts;
@@ -420,15 +465,18 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
                        } else {
                                ClipProxy clip = playlist_clips->mutable_clip(scrub_row);
                                if (scrub_column == int(PlayList::Column::IN)) {
+                                       current_change_id = "playlist:in:" + to_string(scrub_row);
                                        set_pts_in(pts, current_pts, clip);
                                        preview_single_frame(pts, clip->stream_idx, FIRST_AT_OR_AFTER);
                                } else {
+                                       current_change_id = "playlist:out:" + to_string(scrub_row);
                                        pts = std::max(pts, clip->pts_in);
                                        pts = std::min(pts, current_pts);
                                        clip->pts_out = pts;
                                        preview_single_frame(pts, clip->stream_idx, LAST_BEFORE);
                                }
                        }
+                       currently_deferring_model_changes = false;
 
                        return true;  // Don't use this mouse movement for selecting things.
                }
@@ -456,41 +504,49 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
                int row = destination->rowAt(wheel->y());
                if (column == -1 || row == -1) return false;
 
-               ClipProxy clip = (watched == ui->clip_list->viewport()) ?
-                       cliplist_clips->mutable_clip(row) : playlist_clips->mutable_clip(row);
-               if (watched == ui->playlist->viewport()) {
-                       stream_idx = clip->stream_idx;
-               }
+               currently_deferring_model_changes = true;
+               {
+                       current_change_id = (watched == ui->clip_list->viewport()) ? "cliplist:" : "playlist:";
+                       ClipProxy clip = (watched == ui->clip_list->viewport()) ?
+                               cliplist_clips->mutable_clip(row) : playlist_clips->mutable_clip(row);
+                       if (watched == ui->playlist->viewport()) {
+                               stream_idx = clip->stream_idx;
+                       }
 
-               if (column != camera_column) {
-                       last_mousewheel_camera_row = -1;
-               }
-               if (column == in_column) {
-                       int64_t pts = clip->pts_in + wheel->angleDelta().y() * wheel_sensitivity;
-                       set_pts_in(pts, current_pts, clip);
-                       preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
-               } else if (column == out_column) {
-                       int64_t pts = clip->pts_out + wheel->angleDelta().y() * wheel_sensitivity;
-                       pts = std::max(pts, clip->pts_in);
-                       pts = std::min(pts, current_pts);
-                       clip->pts_out = pts;
-                       preview_single_frame(pts, stream_idx, LAST_BEFORE);
-               } else if (column == camera_column) {
-                       int angle_degrees = wheel->angleDelta().y();
-                       if (last_mousewheel_camera_row == row) {
-                               angle_degrees += leftover_angle_degrees;
+                       if (column != camera_column) {
+                               last_mousewheel_camera_row = -1;
                        }
+                       if (column == in_column) {
+                               current_change_id += "in:" + to_string(row);
+                               int64_t pts = clip->pts_in + wheel->angleDelta().y() * wheel_sensitivity;
+                               set_pts_in(pts, current_pts, clip);
+                               preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
+                       } else if (column == out_column) {
+                               current_change_id += "out:" + to_string(row);
+                               int64_t pts = clip->pts_out + wheel->angleDelta().y() * wheel_sensitivity;
+                               pts = std::max(pts, clip->pts_in);
+                               pts = std::min(pts, current_pts);
+                               clip->pts_out = pts;
+                               preview_single_frame(pts, stream_idx, LAST_BEFORE);
+                       } else if (column == camera_column) {
+                               current_change_id += "camera:" + to_string(row);
+                               int angle_degrees = wheel->angleDelta().y();
+                               if (last_mousewheel_camera_row == row) {
+                                       angle_degrees += leftover_angle_degrees;
+                               }
 
-                       int stream_idx = clip->stream_idx + angle_degrees / camera_degrees_per_pixel;
-                       stream_idx = std::max(stream_idx, 0);
-                       stream_idx = std::min(stream_idx, NUM_CAMERAS - 1);
-                       clip->stream_idx = stream_idx;
+                               int stream_idx = clip->stream_idx + angle_degrees / camera_degrees_per_pixel;
+                               stream_idx = std::max(stream_idx, 0);
+                               stream_idx = std::min(stream_idx, NUM_CAMERAS - 1);
+                               clip->stream_idx = stream_idx;
 
-                       last_mousewheel_camera_row = row;
-                       leftover_angle_degrees = angle_degrees % camera_degrees_per_pixel;
+                               last_mousewheel_camera_row = row;
+                               leftover_angle_degrees = angle_degrees % camera_degrees_per_pixel;
 
-                       // Don't update the live view, that's rarely what the operator wants.
+                               // Don't update the live view, that's rarely what the operator wants.
+                       }
                }
+               currently_deferring_model_changes = false;
        } else if (event->type() == QEvent::MouseButtonRelease) {
                scrubbing = false;
        }