When selecting a bin clip from timeline, take care of speed in zone selection.

BUG: 425417

src/bin/bin.cpp

@@ -1986,6 +1986,7 @@ void Bin::selectClipById(const QString &clipId, int frame, const QPoint &zone, b
     if (activateMonitor) {
         if (frame > -1) {
             m_monitor->slotSeek(frame);
+            m_monitor->refreshMonitorIfActive();
         } else {
             m_monitor->slotActivateMonitor();
         }

src/mainwindow.cpp

@@ -3239,14 +3239,36 @@ void MainWindow::slotClipInProjectTree()
         ObjectId id(ObjectType::TimelineClip, ids.constFirst());
         int start = pCore->getItemIn(id);
         int duration = pCore->getItemDuration(id);
-        QPoint zone(start, start + duration);
-        qDebug() << " - - selecting clip on monitor, zone: " << zone;
         int pos = m_projectMonitor->position();
         int itemPos = pCore->getItemPosition(id);
-        if (pos >= itemPos && pos < itemPos + duration) {
-            pos -= (itemPos - start);
-        } else {
-            pos = -1;
+        bool containsPos = (pos >= itemPos && pos < itemPos + duration);
+        double speed = pCore->getClipSpeed(id.second);
+        if (containsPos) {
+            pos -= itemPos - start;
+        }
+        if (!qFuzzyCompare(speed, 1.)) {
+            if (speed > 0.) {
+                // clip has a speed effect, adjust zone
+                start = qRound(start * speed);
+                duration = qRound(duration * speed);
+                if (containsPos) {
+                    pos = qRound(pos * speed);
+                }
+            } else if (speed < 0.) {
+                int max = getMainTimeline()->controller()->clipMaxDuration(id.second);
+                if (max > 0) {
+                    int invertedPos = itemPos + duration - m_projectMonitor->position();
+                    start = qRound((max - (start + duration)) * -speed);
+                    duration = qRound(duration * -speed);
+                    if (containsPos) {
+                        pos = start + qRound(invertedPos * -speed);
+                    }
+                }
+            }
+        }
+        QPoint zone(start, start + duration);
+        if (!containsPos) {
+            pos = start;
         }
         pCore->selectBinClip(getMainTimeline()->controller()->getClipBinId(ids.constFirst()), true, pos, zone);
     }

src/timeline2/view/timelinecontroller.cpp

@@ -4286,3 +4286,10 @@ void TimelineController::updateMasterZones(QVariantList zones)
     emit masterZonesChanged();
 }
 
+int TimelineController::clipMaxDuration(int cid)
+{
+    if (!m_model->isClip(cid)) {
+        return -1;
+    }
+    return m_model->m_allClips[cid]->getMaxDuration();
+}

src/timeline2/view/timelinecontroller.h

@@ -622,6 +622,8 @@ public:
     void showRulerEffectZone(QPair <int, int>inOut, bool checked);
     /** @brief Set the list of master effect zones */
     void updateMasterZones(QVariantList zones);
+    /** @brief get Maximum duration of a clip */
+    int clipMaxDuration(int cid);
 
 public slots:
     void resetView();