updated timeline tools to take custom mouse events

app/common/CMakeLists.txt

@@ -22,6 +22,8 @@ set(OLIVE_SOURCES
   common/debug.cpp
   common/filefunctions.h
   common/filefunctions.cpp
+  common/flipmodifiers.h
+  common/flipmodifiers.cpp
   common/lerp.h
   common/range.h
   common/rational.h

app/common/flipmodifiers.cpp

@@ -0,0 +1,37 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "flipmodifiers.h"
+
+Qt::KeyboardModifiers FlipControlAndShiftModifiers(Qt::KeyboardModifiers e) {
+  if (e & Qt::ControlModifier & Qt::ShiftModifier) {
+    return e;
+  }
+
+  if (e & Qt::ShiftModifier) {
+    e |= Qt::ControlModifier;
+    e &= ~Qt::ShiftModifier;
+  } else if (e & Qt::ControlModifier) {
+    e |= Qt::ShiftModifier;
+    e &= ~Qt::ControlModifier;
+  }
+
+  return e;
+}

app/common/flipmodifiers.h

@@ -0,0 +1,28 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef FLIPMODIFIERS_H
+#define FLIPMODIFIERS_H
+
+#include <QtCore>
+
+Qt::KeyboardModifiers FlipControlAndShiftModifiers(Qt::KeyboardModifiers e);
+
+#endif // FLIPMODIFIERS_H

app/node/output/timeline/timeline.cpp

@@ -39,7 +39,7 @@ TimelineOutput::TimelineOutput()
     AddParameter(track_input);
     track_inputs_[i] = track_input;
 
-    TrackList* list = new TrackList(this, track_input);
+    TrackList* list = new TrackList(this, static_cast<TrackType>(i), track_input);
     track_lists_[i] = list;
     connect(list, SIGNAL(TrackListChanged()), this, SLOT(UpdateTrackCache()));
     connect(list, SIGNAL(LengthChanged(const rational &)), this, SLOT(UpdateLength(const rational &)));
@@ -141,12 +141,12 @@ void TimelineOutput::SetTimebase(const rational &timebase)
   }
 }
 
-NodeInput *TimelineOutput::track_input(TimelineOutput::TrackType type)
+NodeInput *TimelineOutput::track_input(TrackType type)
 {
   return track_inputs_.at(type);
 }
 
-TrackList *TimelineOutput::track_list(TimelineOutput::TrackType type)
+TrackList *TimelineOutput::track_list(TrackType type)
 {
   return track_lists_.at(type);
 }

app/node/output/timeline/timeline.h

@@ -25,6 +25,7 @@
 #include "node/block/block.h"
 #include "node/output/track/track.h"
 #include "tracklist.h"
+#include "tracktypes.h"
 
 /**
  * @brief Node that represents the end of the Timeline as well as a time traversal Node
@@ -33,14 +34,6 @@ class TimelineOutput : public Node
 {
   Q_OBJECT
 public:
-  enum TrackType {
-    kTrackTypeNone = -1,
-    kTrackTypeVideo,
-    kTrackTypeAudio,
-    kTrackTypeSubtitle,
-    kTrackTypeCount
-  };
-
   TimelineOutput();
 
   virtual QString Name() override;

app/node/output/timeline/tracklist.cpp

@@ -23,9 +23,10 @@
 #include "node/blend/alphaover/alphaover.h"
 #include "timeline.h"
 
-TrackList::TrackList(TimelineOutput* parent, NodeInput *track_input) :
+TrackList::TrackList(TimelineOutput* parent, const enum TrackType &type, NodeInput *track_input) :
   QObject(parent),
-  track_input_(track_input)
+  track_input_(track_input),
+  type_(type)
 {
   connect(parent, SIGNAL(EdgeAdded(NodeEdgePtr)), this, SLOT(TrackConnectionAdded(NodeEdgePtr)));
   connect(parent, SIGNAL(EdgeRemoved(NodeEdgePtr)), this, SLOT(TrackConnectionRemoved(NodeEdgePtr)));
@@ -125,6 +126,11 @@ const rational &TrackList::TrackLength()
   return total_length_;
 }
 
+const enum TrackType &TrackList::TrackType()
+{
+  return type_;
+}
+
 void TrackList::AddTrack()
 {
   TrackOutput* track = new TrackOutput();

app/node/output/timeline/tracklist.h

@@ -25,13 +25,14 @@
 
 #include "node/graph.h"
 #include "node/output/track/track.h"
+#include "tracktypes.h"
 
 class TimelineOutput;
 
 class TrackList : public QObject {
   Q_OBJECT
 public:
-  TrackList(TimelineOutput *parent, NodeInput* track_input);
+  TrackList(TimelineOutput *parent, const enum TrackType& type, NodeInput* track_input);
 
   TrackOutput* attached_track();
 
@@ -53,6 +54,8 @@ public:
 
   const rational& TrackLength();
 
+  const enum TrackType& TrackType();
+
 public slots:/**
    * @brief Slot for when the track connection is added
    */
@@ -114,6 +117,8 @@ private:
 
   rational total_length_;
 
+  enum TrackType type_;
+
 private slots:
   void UpdateTotalLength();
 };

app/node/output/timeline/tracktypes.h

@@ -0,0 +1,12 @@
+#ifndef TRACKTYPES_H
+#define TRACKTYPES_H
+
+enum TrackType {
+  kTrackTypeNone = -1,
+  kTrackTypeVideo,
+  kTrackTypeAudio,
+  kTrackTypeSubtitle,
+  kTrackTypeCount
+};
+
+#endif // TRACKTYPES_H

app/project/item/sequence/sequence.cpp

@@ -84,8 +84,8 @@ void Sequence::AddDefaultNodes()
   NodeParam::ConnectEdge(renderer_processor_->texture_output(), viewer_output_->texture_input());
 
   // Connect track to timeline
-  NodeParam::ConnectEdge(video_track_output_->track_output(), timeline_output_->track_input(TimelineOutput::kTrackTypeVideo));
-  NodeParam::ConnectEdge(audio_track_output_->track_output(), timeline_output_->track_input(TimelineOutput::kTrackTypeAudio));
+  NodeParam::ConnectEdge(video_track_output_->track_output(), timeline_output_->track_input(kTrackTypeVideo));
+  NodeParam::ConnectEdge(audio_track_output_->track_output(), timeline_output_->track_input(kTrackTypeAudio));
 
   // Connect timeline end point to renderer
   NodeParam::ConnectEdge(timeline_output_->length_output(), renderer_processor_->length_input());

app/tool/tool.h

@@ -66,7 +66,9 @@ enum Tool {
   kRecord,
 
   /// Add tool
-  kAdd
+  kAdd,
+
+  kCount
 };
 
 }

app/widget/timelineview/CMakeLists.txt

@@ -19,12 +19,16 @@ add_subdirectory(undo)
 
 set(OLIVE_SOURCES
   ${OLIVE_SOURCES}
+  widget/timelineview/timelinecoordinate.h
+  widget/timelineview/timelinecoordinate.cpp
   widget/timelineview/timelineplayhead.h
   widget/timelineview/timelineplayhead.cpp
   widget/timelineview/timelinescaledobject.h
   widget/timelineview/timelinescaledobject.cpp
   widget/timelineview/timelineview.h
   widget/timelineview/timelineview.cpp
+  widget/timelineview/timelineviewmouseevent.h
+  widget/timelineview/timelineviewmouseevent.cpp
   widget/timelineview/timelineviewrect.h
   widget/timelineview/timelineviewrect.cpp
   widget/timelineview/timelineviewblockitem.h

app/widget/timelineview/timelinecoordinate.cpp

@@ -0,0 +1,52 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "timelinecoordinate.h"
+
+TimelineCoordinate::TimelineCoordinate() :
+  track_(0)
+{
+}
+
+TimelineCoordinate::TimelineCoordinate(const rational &frame, const int &track) :
+  frame_(frame),
+  track_(track)
+{
+}
+
+const rational &TimelineCoordinate::GetFrame() const
+{
+  return frame_;
+}
+
+const int &TimelineCoordinate::GetTrack() const
+{
+  return track_;
+}
+
+void TimelineCoordinate::SetFrame(const rational &frame)
+{
+  frame_ = frame;
+}
+
+void TimelineCoordinate::SetTrack(const int &track)
+{
+  track_ = track;
+}

app/widget/timelineview/timelinecoordinate.h

@@ -0,0 +1,45 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef TIMELINECOORDINATE_H
+#define TIMELINECOORDINATE_H
+
+#include "common/rational.h"
+
+class TimelineCoordinate
+{
+public:
+  TimelineCoordinate();
+  TimelineCoordinate(const rational& frame, const int& track);
+
+  const rational& GetFrame() const;
+  const int& GetTrack() const;
+
+  void SetFrame(const rational& frame);
+  void SetTrack(const int& track);
+
+private:
+  rational frame_;
+
+  int track_;
+
+};
+
+#endif // TIMELINECOORDINATE_H

app/widget/timelineview/timelineview.cpp

@@ -27,6 +27,7 @@
 #include <QtMath>
 #include <QPen>
 
+#include "common/flipmodifiers.h"
 #include "common/timecodefunctions.h"
 #include "core.h"
 #include "node/input/media/media.h"
@@ -35,15 +36,6 @@
 
 TimelineView::TimelineView(Qt::Alignment vertical_alignment, QWidget *parent) :
   QGraphicsView(parent),
-  pointer_tool_(this),
-  import_tool_(this),
-  ripple_tool_(this),
-  rolling_tool_(this),
-  razor_tool_(this),
-  slide_tool_(this),
-  slip_tool_(this),
-  hand_tool_(this),
-  zoom_tool_(this),
   timeline_node_(nullptr),
   playhead_(0),
   use_tracklist_length_directly_(true)
@@ -56,6 +48,25 @@ TimelineView::TimelineView(Qt::Alignment vertical_alignment, QWidget *parent) :
   setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
   setBackgroundRole(QPalette::Window);
 
+  // Create tools
+  tools_.resize(olive::tool::kCount);
+  tools_.fill(nullptr);
+
+  tools_.replace(olive::tool::kPointer, std::make_shared<PointerTool>(this));
+  // tools_.replace(olive::tool::kEdit, new PointerTool(this)); FIXME: Implement
+  tools_.replace(olive::tool::kRipple, std::make_shared<RippleTool>(this));
+  tools_.replace(olive::tool::kRolling, std::make_shared<RollingTool>(this));
+  tools_.replace(olive::tool::kRazor, std::make_shared<RazorTool>(this));
+  tools_.replace(olive::tool::kSlip, std::make_shared<SlipTool>(this));
+  tools_.replace(olive::tool::kSlide, std::make_shared<SlideTool>(this));
+  tools_.replace(olive::tool::kHand, std::make_shared<HandTool>(this));
+  tools_.replace(olive::tool::kZoom, std::make_shared<ZoomTool>(this));
+  //tools_.replace(olive::tool::kTransition, new (this)); FIXME: Implement
+  //tools_.replace(olive::tool::kRecord, new PointerTool(this)); FIXME: Implement
+  //tools_.replace(olive::tool::kAdd, new PointerTool(this)); FIXME: Implement
+
+  import_tool_ = std::make_shared<ImportTool>(this);
+
   connect(&scene_, SIGNAL(changed(const QList<QRectF>&)), this, SLOT(UpdateSceneRect()));
 
   // Create end item
@@ -121,7 +132,7 @@ void TimelineView::SetScale(const double &scale)
 {
   scale_ = scale;
 
-  QMapIterator<Block*, TimelineViewRect*> iterator(block_items_);
+  QMapIterator<Block*, TimelineViewBlockItem*> iterator(block_items_);
 
   while (iterator.hasNext()) {
     iterator.next();
@@ -145,11 +156,14 @@ void TimelineView::SetTimebase(const rational &timebase)
 {
   timebase_ = timebase;
   timebase_dbl_ = timebase_.toDouble();
+
+  // Timebase influences position/visibility of playhead
+  viewport()->update();
 }
 
 void TimelineView::Clear()
 {
-  QMapIterator<Block*, TimelineViewRect*> iterator(block_items_);
+  QMapIterator<Block*, TimelineViewBlockItem*> iterator(block_items_);
 
   while (iterator.hasNext()) {
     iterator.next();
@@ -239,50 +253,131 @@ void TimelineView::mousePressEvent(QMouseEvent *event)
 {
   active_tool_ = GetActiveTool();
 
+  // Cache these since we modify the event's later on
+  Qt::KeyboardModifiers mods = event->modifiers();
+
+  if (active_tool_ != nullptr) {
+    setDragMode(active_tool_->drag_mode());
+  }
+
+  if (active_tool_ == nullptr || active_tool_->enable_default_behavior()) {
+    // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
+    event->setModifiers(FlipControlAndShiftModifiers(event->modifiers()));
+
+    QGraphicsView::mousePressEvent(event);
+  }
+
   if (timeline_node_ != nullptr && active_tool_ != nullptr) {
-    active_tool_->MousePress(event);
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          mods);
+
+    active_tool_->MousePress(&timeline_event);
   }
 }
 
 void TimelineView::mouseMoveEvent(QMouseEvent *event)
 {
+  // Cache these since we modify the event's later on
+  Qt::KeyboardModifiers mods = event->modifiers();
+
+  if (active_tool_ == nullptr || active_tool_->enable_default_behavior()) {
+    // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
+    event->setModifiers(FlipControlAndShiftModifiers(event->modifiers()));
+
+    QGraphicsView::mouseMoveEvent(event);
+  }
+
   if (timeline_node_ != nullptr && active_tool_ != nullptr) {
-    active_tool_->MouseMove(event);
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          mods);
+
+    active_tool_->MouseMove(&timeline_event);
   }
 }
 
 void TimelineView::mouseReleaseEvent(QMouseEvent *event)
 {
+  // Cache these since we modify the event's later on
+  Qt::KeyboardModifiers mods = event->modifiers();
+
+  if (active_tool_ == nullptr || active_tool_->enable_default_behavior()) {
+    // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
+    event->setModifiers(FlipControlAndShiftModifiers(event->modifiers()));
+
+    QGraphicsView::mouseReleaseEvent(event);
+  }
+
   if (timeline_node_ != nullptr && active_tool_ != nullptr) {
-    active_tool_->MouseRelease(event);
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          mods);
+
+    active_tool_->MouseRelease(&timeline_event);
+  }
+}
+
+void TimelineView::mouseDoubleClickEvent(QMouseEvent *event)
+{
+  // Cache these since we modify the event's later on
+  Qt::KeyboardModifiers mods = event->modifiers();
+
+  if (active_tool_ == nullptr || active_tool_->enable_default_behavior()) {
+    // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
+    event->setModifiers(FlipControlAndShiftModifiers(event->modifiers()));
+
+    QGraphicsView::mouseDoubleClickEvent(event);
+  }
+
+  if (timeline_node_ != nullptr && active_tool_ != nullptr) {
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          mods);
+
+    active_tool_->MouseDoubleClick(&timeline_event);
   }
 }
 
 void TimelineView::dragEnterEvent(QDragEnterEvent *event)
 {
   if (timeline_node_ != nullptr) {
-    import_tool_.DragEnter(event);
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          event->keyboardModifiers());
+
+    timeline_event.SetMimeData(event->mimeData());
+    timeline_event.SetEvent(event);
+
+    import_tool_->DragEnter(&timeline_event);
   }
 }
 
 void TimelineView::dragMoveEvent(QDragMoveEvent *event)
 {
   if (timeline_node_ != nullptr) {
-    import_tool_.DragMove(event);
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          event->keyboardModifiers());
+
+    timeline_event.SetMimeData(event->mimeData());
+    timeline_event.SetEvent(event);
+
+    import_tool_->DragMove(&timeline_event);
   }
 }
 
 void TimelineView::dragLeaveEvent(QDragLeaveEvent *event)
 {
   if (timeline_node_ != nullptr) {
-    import_tool_.DragLeave(event);
+    import_tool_->DragLeave(event);
   }
 }
 
 void TimelineView::dropEvent(QDropEvent *event)
 {
   if (timeline_node_ != nullptr) {
-    import_tool_.DragDrop(event);
+    TimelineViewMouseEvent timeline_event(ScreenToCoordinate(event->pos()),
+                                          event->keyboardModifiers());
+
+    timeline_event.SetMimeData(event->mimeData());
+    timeline_event.SetEvent(event);
+
+    import_tool_->DragDrop(&timeline_event);
   }
 }
 
@@ -297,52 +392,61 @@ void TimelineView::drawForeground(QPainter *painter, const QRectF &rect)
 {
   QGraphicsView::drawForeground(painter, rect);
 
-  double x = TimeToScreenCoord(rational(playhead_ * timebase_.numerator(), timebase_.denominator()));
-  double width = TimeToScreenCoord(timebase_);
+  if (!timebase_.isNull()) {
+    double x = TimeToScreenCoord(rational(playhead_ * timebase_.numerator(), timebase_.denominator()));
+    double width = TimeToScreenCoord(timebase_);
 
-  QRectF playhead_rect(x, rect.top(), width, rect.height());
+    QRectF playhead_rect(x, rect.top(), width, rect.height());
 
-  painter->setPen(Qt::NoPen);
-  painter->setBrush(playhead_style_.PlayheadHighlightColor());
-  painter->drawRect(playhead_rect);
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(playhead_style_.PlayheadHighlightColor());
+    painter->drawRect(playhead_rect);
 
-  painter->setPen(playhead_style_.PlayheadColor());
-  painter->setBrush(Qt::NoBrush);
-  painter->drawLine(QLineF(playhead_rect.topLeft(), playhead_rect.bottomLeft()));
+    painter->setPen(playhead_style_.PlayheadColor());
+    painter->setBrush(Qt::NoBrush);
+    painter->drawLine(QLineF(playhead_rect.topLeft(), playhead_rect.bottomLeft()));
+  }
+}
+
+TrackType TimelineView::ConnectedTrackType()
+{
+  if (timeline_node_ != nullptr) {
+    return timeline_node_->TrackType();
+  }
+
+  return kTrackTypeNone;
+}
+
+Stream::Type TimelineView::TrackTypeToStreamType(TrackType track_type)
+{
+  switch (track_type) {
+  case kTrackTypeNone:
+  case kTrackTypeCount:
+    break;
+  case kTrackTypeVideo:
+    return Stream::kVideo;
+  case kTrackTypeAudio:
+    return Stream::kAudio;
+  case kTrackTypeSubtitle:
+    return Stream::kSubtitle;
+  }
+
+  return Stream::kUnknown;
+}
+
+TimelineCoordinate TimelineView::ScreenToCoordinate(const QPoint& pt)
+{
+  return SceneToCoordinate(mapToScene(pt));
+}
+
+TimelineCoordinate TimelineView::SceneToCoordinate(const QPointF& pt)
+{
+  return TimelineCoordinate(SceneToTime(pt.x()), SceneToTrack(pt.y()));
 }
 
 TimelineView::Tool *TimelineView::GetActiveTool()
 {
-  switch (olive::core.tool()) {
-  case olive::tool::kNone:
-    return nullptr;
-  case olive::tool::kPointer:
-    return &pointer_tool_;
-  case olive::tool::kEdit:
-    return nullptr; // FIXME: Implement
-  case olive::tool::kRipple:
-    return &ripple_tool_;
-  case olive::tool::kRolling:
-    return &rolling_tool_;
-  case olive::tool::kRazor:
-    return &razor_tool_;
-  case olive::tool::kSlip:
-    return &slip_tool_;
-  case olive::tool::kSlide:
-    return &slide_tool_;
-  case olive::tool::kHand:
-    return &hand_tool_;
-  case olive::tool::kZoom:
-    return &zoom_tool_;
-  case olive::tool::kTransition:
-    return nullptr; // FIXME: Implement
-  case olive::tool::kRecord:
-    return nullptr; // FIXME: Implement
-  case olive::tool::kAdd:
-    return nullptr; // FIXME: Implement
-  }
-
-  return nullptr;
+  return tools_.at(olive::core.tool()).get();
 }
 
 int TimelineView::GetTrackY(int track_index)
@@ -383,7 +487,7 @@ bool TimelineView::HasGhosts()
 rational TimelineView::SceneToTime(const double &x)
 {
   // Adjust screen point by scale and timebase
-  int scaled_x_mvmt = qRound(x / scale_ / timebase_dbl_);
+  qint64 scaled_x_mvmt = qRound64(x / scale_ / timebase_dbl_);
 
   // Return a time in the timebase
   return rational(scaled_x_mvmt * timebase_.numerator(), timebase_.denominator());

app/widget/timelineview/timelineview.h

@@ -31,6 +31,7 @@
 #include "node/output/timeline/timeline.h"
 #include "timelineplayhead.h"
 #include "timelineviewblockitem.h"
+#include "timelineviewmouseevent.h"
 #include "timelineviewenditem.h"
 #include "timelineviewghostitem.h"
 #include "widget/timelineview/undo/undo.h"
@@ -91,6 +92,7 @@ protected:
   virtual void mousePressEvent(QMouseEvent *event) override;
   virtual void mouseMoveEvent(QMouseEvent *event) override;
   virtual void mouseReleaseEvent(QMouseEvent *event) override;
+  virtual void mouseDoubleClickEvent(QMouseEvent *event) override;
 
   virtual void dragEnterEvent(QDragEnterEvent *event) override;
   virtual void dragMoveEvent(QDragMoveEvent *event) override;
@@ -109,27 +111,28 @@ private:
     Tool(TimelineView* parent);
     virtual ~Tool();
 
-    virtual void MousePress(QMouseEvent *event);
-    virtual void MouseMove(QMouseEvent *event);
-    virtual void MouseRelease(QMouseEvent *event);
+    virtual void MousePress(TimelineViewMouseEvent *){}
+    virtual void MouseMove(TimelineViewMouseEvent *){}
+    virtual void MouseRelease(TimelineViewMouseEvent *){}
+    virtual void MouseDoubleClick(TimelineViewMouseEvent *){}
 
-    virtual void DragEnter(QDragEnterEvent *event);
-    virtual void DragMove(QDragMoveEvent *event);
-    virtual void DragLeave(QDragLeaveEvent *event);
-    virtual void DragDrop(QDropEvent *event);
+    virtual void DragEnter(TimelineViewMouseEvent *){}
+    virtual void DragMove(TimelineViewMouseEvent *){}
+    virtual void DragLeave(QDragLeaveEvent *){}
+    virtual void DragDrop(TimelineViewMouseEvent *){}
 
     TimelineView* parent();
 
     static olive::timeline::MovementMode FlipTrimMode(const olive::timeline::MovementMode& trim_mode);
 
+    const DragMode& drag_mode();
+
+    bool enable_default_behavior();
+
   protected:
-    /**
-     * @brief Convert a integer screen point to a float scene point
-     *
-     * Useful for converting a mouse coordinate provided by a QMouseEvent to a inner-timeline scene position (the
-     * coordinates that the graphics items use)
-     */
-    QPointF GetScenePos(const QPoint& screen_pos);
+    void set_drag_mode(const DragMode& mode);
+
+    void set_enable_default_behavior(bool enable);
 
     /**
      * @brief Retrieve the QGraphicsItem at a particular scene position
@@ -137,7 +140,7 @@ private:
      * Requires a float-based scene position. If you have a screen position, use GetScenePos() first to convert it to a
      * scene position
      */
-    QGraphicsItem* GetItemAtScenePos(const QPointF& scene_pos);
+    TimelineViewBlockItem* GetItemAtScenePos(const TimelineCoordinate &coord);
 
     /**
      * @brief Validates Ghosts that are moving horizontally (time-based)
@@ -169,11 +172,15 @@ private:
 
     bool dragging_;
 
-    QPointF drag_start_;
+    TimelineCoordinate drag_start_;
 
   private:
     TimelineView* parent_;
 
+    DragMode drag_mode_;
+
+    bool enable_default_behavior_;
+
   };
 
   class PointerTool : public Tool
@@ -181,14 +188,14 @@ private:
   public:
     PointerTool(TimelineView* parent);
 
-    virtual void MousePress(QMouseEvent *event) override;
-    virtual void MouseMove(QMouseEvent *event) override;
-    virtual void MouseRelease(QMouseEvent *event) override;
+    virtual void MousePress(TimelineViewMouseEvent *event) override;
+    virtual void MouseMove(TimelineViewMouseEvent *event) override;
+    virtual void MouseRelease(TimelineViewMouseEvent *event) override;
   protected:
     void SetMovementAllowed(bool allowed);
     void SetTrackMovementAllowed(bool allowed);
     void SetTrimmingAllowed(bool allowed);
-    virtual void MouseReleaseInternal(QMouseEvent *event);
+    virtual void MouseReleaseInternal(TimelineViewMouseEvent *event);
     virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem *> &ghosts);
 
     virtual void InitiateGhosts(TimelineViewBlockItem* clicked_item,
@@ -215,9 +222,9 @@ private:
      */
     rational ValidateOutTrimming(rational movement, const QVector<TimelineViewGhostItem*> ghosts, bool prevent_overwriting);
 
-    virtual void ProcessDrag(const QPoint &mouse_pos);
+    virtual void ProcessDrag(const TimelineCoordinate &mouse_pos);
   private:
-    void InitiateDrag(const QPoint &mouse_pos);
+    void InitiateDrag(const TimelineCoordinate &mouse_pos);
 
     void AddGhostInternal(TimelineViewGhostItem* ghost, olive::timeline::MovementMode mode);
 
@@ -238,10 +245,10 @@ private:
   public:
     ImportTool(TimelineView* parent);
 
-    virtual void DragEnter(QDragEnterEvent *event) override;
-    virtual void DragMove(QDragMoveEvent *event) override;
+    virtual void DragEnter(TimelineViewMouseEvent *event) override;
+    virtual void DragMove(TimelineViewMouseEvent *event) override;
     virtual void DragLeave(QDragLeaveEvent *event) override;
-    virtual void DragDrop(QDropEvent *event) override;
+    virtual void DragDrop(TimelineViewMouseEvent *event) override;
   private:
     int import_pre_buffer_;
   };
@@ -251,9 +258,9 @@ private:
   public:
     RazorTool(TimelineView* parent);
 
-    virtual void MousePress(QMouseEvent *event);
-    virtual void MouseMove(QMouseEvent *event);
-    virtual void MouseRelease(QMouseEvent *event);
+    virtual void MousePress(TimelineViewMouseEvent *event);
+    virtual void MouseMove(TimelineViewMouseEvent *event);
+    virtual void MouseRelease(TimelineViewMouseEvent *event);
 
   private:
     QVector<int> split_tracks_;
@@ -264,7 +271,7 @@ private:
   public:
     RippleTool(TimelineView* parent);
   protected:
-    virtual void MouseReleaseInternal(QMouseEvent *event) override;
+    virtual void MouseReleaseInternal(TimelineViewMouseEvent *event) override;
     virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem*>& ghosts) override;
 
     virtual void InitiateGhosts(TimelineViewBlockItem* clicked_item,
@@ -278,7 +285,7 @@ private:
     RollingTool(TimelineView* parent);
 
   protected:
-    virtual void MouseReleaseInternal(QMouseEvent *event) override;
+    virtual void MouseReleaseInternal(TimelineViewMouseEvent *event) override;
     virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem*>& ghosts) override;
 
     virtual void InitiateGhosts(TimelineViewBlockItem* clicked_item,
@@ -292,7 +299,7 @@ private:
     SlideTool(TimelineView* parent);
 
   protected:
-    virtual void MouseReleaseInternal(QMouseEvent *event) override;
+    virtual void MouseReleaseInternal(TimelineViewMouseEvent *event) override;
     virtual rational FrameValidateInternal(rational time_movement, const QVector<TimelineViewGhostItem*>& ghosts) override;
     virtual void InitiateGhosts(TimelineViewBlockItem* clicked_item,
                                 olive::timeline::MovementMode trim_mode,
@@ -305,8 +312,8 @@ private:
     SlipTool(TimelineView* parent);
 
   protected:
-    virtual void ProcessDrag(const QPoint &mouse_pos) override;
-    virtual void MouseReleaseInternal(QMouseEvent *event) override;
+    virtual void ProcessDrag(const TimelineCoordinate &mouse_pos) override;
+    virtual void MouseReleaseInternal(TimelineViewMouseEvent *event) override;
   };
 
   class HandTool : public Tool
@@ -314,10 +321,6 @@ private:
   public:
     HandTool(TimelineView* parent);
 
-    virtual void MousePress(QMouseEvent *event);
-    virtual void MouseMove(QMouseEvent *event);
-    virtual void MouseRelease(QMouseEvent *event);
-
   private:
     QPoint screen_drag_start_;
     QPoint scrollbar_start_;
@@ -328,25 +331,25 @@ private:
   public:
     ZoomTool(TimelineView* parent);
 
-    virtual void MousePress(QMouseEvent *event);
-    virtual void MouseMove(QMouseEvent *event);
-    virtual void MouseRelease(QMouseEvent *event);
+    virtual void MousePress(TimelineViewMouseEvent *event);
+    virtual void MouseMove(TimelineViewMouseEvent *event);
+    virtual void MouseRelease(TimelineViewMouseEvent *event);
   };
 
+  TrackType ConnectedTrackType();
+  Stream::Type TrackTypeToStreamType(TrackType track_type);
+
+  TimelineCoordinate ScreenToCoordinate(const QPoint& pt);
+  TimelineCoordinate SceneToCoordinate(const QPointF& pt);
+
   Tool* GetActiveTool();
 
   int GetTrackY(int track_index);
   int GetTrackHeight(int track_index);
 
-  PointerTool pointer_tool_;
-  ImportTool import_tool_;
-  RippleTool ripple_tool_;
-  RollingTool rolling_tool_;
-  RazorTool razor_tool_;
-  SlideTool slide_tool_;
-  SlipTool slip_tool_;
-  HandTool hand_tool_;
-  ZoomTool zoom_tool_;
+  QVector< std::shared_ptr<Tool> > tools_;
+
+  std::shared_ptr<ImportTool> import_tool_;
 
   TrackList* timeline_node_;
 
@@ -369,7 +372,7 @@ private:
 
   int64_t playhead_;
 
-  QMap<Block*, TimelineViewRect*> block_items_;
+  QMap<Block*, TimelineViewBlockItem*> block_items_;
 
   QVector<TimelineViewGhostItem*> ghost_items_;
 

app/widget/timelineview/timelineviewblockitem.cpp

@@ -70,29 +70,41 @@ void TimelineViewBlockItem::paint(QPainter *painter, const QStyleOptionGraphicsI
 {
   Q_UNUSED(widget)
 
-  if (block_ == nullptr || block_->type() == Block::kGap) {
+  if (block_ == nullptr) {
     return;
   }
 
-  /*QLinearGradient grad;
-  grad.setStart(0, rect().top());
-  grad.setFinalStop(0, rect().bottom());
-  grad.setColorAt(0.0, QColor(160, 160, 240));
-  grad.setColorAt(1.0, QColor(128, 128, 192));
-  painter->fillRect(rect(), grad);*/
-  painter->fillRect(rect(), QColor(128, 128, 192));
+  switch (block_->type()) {
+  case Block::kClip:
+    /*QLinearGradient grad;
+    grad.setStart(0, rect().top());
+    grad.setFinalStop(0, rect().bottom());
+    grad.setColorAt(0.0, QColor(160, 160, 240));
+    grad.setColorAt(1.0, QColor(128, 128, 192));
+    painter->fillRect(rect(), grad);*/
+    painter->fillRect(rect(), QColor(128, 128, 192));
 
-  if (option->state & QStyle::State_Selected) {
-    painter->fillRect(rect(), QColor(0, 0, 0, 64));
+    if (option->state & QStyle::State_Selected) {
+      painter->fillRect(rect(), QColor(0, 0, 0, 64));
+    }
+
+    painter->setPen(Qt::white);
+    painter->drawLine(rect().topLeft(), QPointF(rect().right(), rect().top()));
+    painter->drawLine(rect().topLeft(), QPointF(rect().left(), rect().bottom() - 1));
+
+    painter->drawText(rect(), static_cast<int>(Qt::AlignLeft | Qt::AlignTop), block_->block_name());
+
+    painter->setPen(QColor(64, 64, 64));
+    painter->drawLine(QPointF(rect().left(), rect().bottom() - 1), QPointF(rect().right(), rect().bottom() - 1));
+    painter->drawLine(QPointF(rect().right(), rect().bottom() - 1), QPointF(rect().right(), rect().top()));
+    break;
+  case Block::kGap:
+    if (option->state & QStyle::State_Selected) {
+      // FIXME: Make this palette or CSS
+      painter->fillRect(rect(), Qt::white);
+    }
+    break;
+  case Block::kEnd:
+    break;
   }
-
-  painter->setPen(Qt::white);
-  painter->drawLine(rect().topLeft(), QPointF(rect().right(), rect().top()));
-  painter->drawLine(rect().topLeft(), QPointF(rect().left(), rect().bottom() - 1));
-
-  painter->drawText(rect(), static_cast<int>(Qt::AlignLeft | Qt::AlignTop), block_->block_name());
-
-  painter->setPen(QColor(64, 64, 64));
-  painter->drawLine(QPointF(rect().left(), rect().bottom() - 1), QPointF(rect().right(), rect().bottom() - 1));
-  painter->drawLine(QPointF(rect().right(), rect().bottom() - 1), QPointF(rect().right(), rect().top()));
 }

app/widget/timelineview/timelineviewmouseevent.cpp

@@ -0,0 +1,79 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "timelineviewmouseevent.h"
+
+#include <QEvent>
+
+TimelineViewMouseEvent::TimelineViewMouseEvent(const TimelineCoordinate &coord,
+                                               const Qt::KeyboardModifiers &modifiers) :
+  coord_(coord),
+  modifiers_(modifiers),
+  source_event_(nullptr),
+  mime_data_(nullptr)
+{
+}
+
+TimelineViewMouseEvent::TimelineViewMouseEvent(const rational &frame,
+                                               const int &track,
+                                               const Qt::KeyboardModifiers &modifiers) :
+  coord_(frame, track),
+  modifiers_(modifiers),
+  source_event_(nullptr),
+  mime_data_(nullptr)
+{
+}
+
+const TimelineCoordinate &TimelineViewMouseEvent::GetCoordinates()
+{
+  return coord_;
+}
+
+const Qt::KeyboardModifiers TimelineViewMouseEvent::GetModifiers()
+{
+  return modifiers_;
+}
+
+const QMimeData* TimelineViewMouseEvent::GetMimeData()
+{
+  return mime_data_;
+}
+
+void TimelineViewMouseEvent::SetMimeData(const QMimeData *data)
+{
+  mime_data_ = data;
+}
+
+void TimelineViewMouseEvent::SetEvent(QEvent *event)
+{
+  source_event_ = event;
+}
+
+void TimelineViewMouseEvent::accept()
+{
+  if (source_event_ != nullptr)
+    source_event_->accept();
+}
+
+void TimelineViewMouseEvent::ignore()
+{
+  if (source_event_ != nullptr)
+    source_event_->ignore();
+}

app/widget/timelineview/timelineviewmouseevent.h

@@ -0,0 +1,62 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef TIMELINEVIEWMOUSEEVENT_H
+#define TIMELINEVIEWMOUSEEVENT_H
+
+#include <QMimeData>
+#include <QPointF>
+#include <QPoint>
+
+#include "timelinecoordinate.h"
+
+class TimelineViewMouseEvent
+{
+public:
+  TimelineViewMouseEvent(const TimelineCoordinate& coord,
+                         const Qt::KeyboardModifiers& modifiers = Qt::NoModifier);
+
+  TimelineViewMouseEvent(const rational& frame,
+                         const int& track,
+                         const Qt::KeyboardModifiers& modifiers = Qt::NoModifier);
+
+  const TimelineCoordinate& GetCoordinates();
+  const Qt::KeyboardModifiers GetModifiers();
+
+  const QMimeData *GetMimeData();
+  void SetMimeData(const QMimeData *data);
+
+  void SetEvent(QEvent* event);
+
+  void accept();
+  void ignore();
+
+private:
+  TimelineCoordinate coord_;
+
+  Qt::KeyboardModifiers modifiers_;
+
+  QEvent* source_event_;
+
+  const QMimeData* mime_data_;
+
+};
+
+#endif // TIMELINEVIEWMOUSEEVENT_H

app/widget/timelineview/tool/hand.cpp

@@ -25,30 +25,5 @@
 TimelineView::HandTool::HandTool(TimelineView* parent) :
   Tool(parent)
 {
-
-}
-
-void TimelineView::HandTool::MousePress(QMouseEvent *event)
-{
-  screen_drag_start_ = event->pos();
-  scrollbar_start_.setX(parent()->horizontalScrollBar()->value());
-  scrollbar_start_.setY(parent()->verticalScrollBar()->value());
-  dragging_ = true;
-}
-
-void TimelineView::HandTool::MouseMove(QMouseEvent *event)
-{
-  if (dragging_) {
-    QPoint drag_diff = event->pos() - screen_drag_start_;
-
-    parent()->horizontalScrollBar()->setValue(scrollbar_start_.x() - drag_diff.x());
-    parent()->verticalScrollBar()->setValue(scrollbar_start_.y() - drag_diff.y());
-  }
-}
-
-void TimelineView::HandTool::MouseRelease(QMouseEvent *event)
-{
-  Q_UNUSED(event)
-
-  dragging_ = false;
+  set_drag_mode(ScrollHandDrag);
 }

app/widget/timelineview/tool/import.cpp

@@ -38,16 +38,16 @@ TimelineView::ImportTool::ImportTool(TimelineView *parent) :
   import_pre_buffer_ = QFontMetricsWidth(&fm, "HHHHHHHH");
 }
 
-void TimelineView::ImportTool::DragEnter(QDragEnterEvent *event)
+void TimelineView::ImportTool::DragEnter(TimelineViewMouseEvent *event)
 {
-  QStringList mime_formats = event->mimeData()->formats();
+  QStringList mime_formats = event->GetMimeData()->formats();
 
   // Listen for MIME data from a ProjectViewModel
   if (mime_formats.contains("application/x-oliveprojectitemdata")) {
     // FIXME: Implement audio insertion
 
     // Data is drag/drop data from a ProjectViewModel
-    QByteArray model_data = event->mimeData()->data("application/x-oliveprojectitemdata");
+    QByteArray model_data = event->GetMimeData()->data("application/x-oliveprojectitemdata");
 
     // Use QDataStream to deserialize the data
     QDataStream stream(&model_data, QIODevice::ReadOnly);
@@ -57,10 +57,11 @@ void TimelineView::ImportTool::DragEnter(QDragEnterEvent *event)
     int r;
 
     // Set drag start position
-    drag_start_ = GetScenePos(event->pos());
+    drag_start_ = event->GetCoordinates();
 
     // Set ghosts to start where the cursor entered
-    rational ghost_start = parent()->SceneToTime(drag_start_.x() - import_pre_buffer_);
+
+    rational ghost_start = drag_start_.GetFrame() - parent()->SceneToTime(import_pre_buffer_);
 
     snap_points_.clear();
 
@@ -75,32 +76,36 @@ void TimelineView::ImportTool::DragEnter(QDragEnterEvent *event)
         // If the Item is Footage, we can create a Ghost from it
         Footage* footage = static_cast<Footage*>(item);
 
-        StreamPtr stream = footage->stream(0);
-
-        TimelineViewGhostItem* ghost = new TimelineViewGhostItem();
-
         rational footage_duration;
 
-        if (stream->type() == Stream::kImage) {
-          // Stream is essentially length-less - use config's default image length
-          footage_duration = Config::Current()["DefaultStillLength"].value<rational>();
-        } else {
-          // Use duration from file
-          footage_duration = rational(stream->timebase().numerator() * stream->duration(),
-                                      stream->timebase().denominator());
+        // Loop through all streams in footage
+        foreach (StreamPtr stream, footage->streams()) {
+          // Check if this stream is compatible with this TrackList
+          if (stream->type() == parent()->TrackTypeToStreamType(parent()->ConnectedTrackType())) {
+            TimelineViewGhostItem* ghost = new TimelineViewGhostItem();
+
+            if (stream->type() == Stream::kImage) {
+              // Stream is essentially length-less - use config's default image length
+              footage_duration = Config::Current()["DefaultStillLength"].value<rational>();
+            } else {
+              // Use duration from file
+              footage_duration = rational(stream->timebase().numerator() * stream->duration(),
+                                          stream->timebase().denominator());
+            }
+
+            ghost->SetIn(ghost_start);
+            ghost->SetOut(ghost_start + footage_duration);
+
+            snap_points_.append(ghost->In());
+            snap_points_.append(ghost->Out());
+
+            ghost->setData(TimelineViewGhostItem::kAttachedFootage, QVariant::fromValue(stream));
+            ghost->SetMode(olive::timeline::kMove);
+
+            parent()->AddGhost(ghost);
+          }
         }
 
-        ghost->SetIn(ghost_start);
-        ghost->SetOut(ghost_start + footage_duration);
-
-        snap_points_.append(ghost->In());
-        snap_points_.append(ghost->Out());
-
-        ghost->setData(TimelineViewGhostItem::kAttachedFootage, QVariant::fromValue(stream));
-        ghost->SetMode(olive::timeline::kMove);
-
-        parent()->AddGhost(ghost);
-
         // Stack each ghost one after the other
         ghost_start += footage_duration;
       }
@@ -113,25 +118,22 @@ void TimelineView::ImportTool::DragEnter(QDragEnterEvent *event)
   }
 }
 
-void TimelineView::ImportTool::DragMove(QDragMoveEvent *event)
+void TimelineView::ImportTool::DragMove(TimelineViewMouseEvent *event)
 {
   if (parent()->HasGhosts()) {
-    QPointF pos = GetScenePos(event->pos());
-    QPointF movement = pos - drag_start_;
+    rational time_movement = event->GetCoordinates().GetFrame() - drag_start_.GetFrame();
 
-    rational time_movement = parent()->SceneToTime(movement.x());
-
-    int ghost_track = parent()->SceneToTrack(pos.y());
+    int ghost_track = event->GetCoordinates().GetTrack();
     int ghost_y = parent()->GetTrackY(ghost_track);
     int ghost_height = parent()->GetTrackHeight(ghost_track);
 
-    time_movement = ValidateFrameMovement(time_movement, parent()->ghost_items_);
-
     // If snapping is enabled, check for snap points
     if (olive::core.snapping()) {
       SnapPoint(snap_points_, &time_movement);
     }
 
+    time_movement = ValidateFrameMovement(time_movement, parent()->ghost_items_);
+
     rational earliest_ghost = RATIONAL_MAX;
 
     // Move ghosts to the mouse cursor
@@ -162,7 +164,7 @@ void TimelineView::ImportTool::DragMove(QDragMoveEvent *event)
   }
 }
 
-void TimelineView::ImportTool::DragLeave(QDragLeaveEvent *event)
+void TimelineView::ImportTool::DragLeave(QDragLeaveEvent* event)
 {
   if (parent()->HasGhosts()) {
     parent()->ClearGhosts();
@@ -173,7 +175,7 @@ void TimelineView::ImportTool::DragLeave(QDragLeaveEvent *event)
   }
 }
 
-void TimelineView::ImportTool::DragDrop(QDropEvent *event)
+void TimelineView::ImportTool::DragDrop(TimelineViewMouseEvent *event)
 {
   if (parent()->HasGhosts()) {
     // We use QObject as the parent for the nodes we create. If there is no TimelineOutput node, this object going out
@@ -204,7 +206,7 @@ void TimelineView::ImportTool::DragDrop(QDropEvent *event)
       NodeParam::ConnectEdge(transform->matrix_output(), media->matrix_input());
 
 
-      if (event->keyboardModifiers() & Qt::ControlModifier) {
+      if (event->GetModifiers() & Qt::ControlModifier) {
         //emit parent()->RequestInsertBlockAtTime(clip, ghost->GetAdjustedIn());
       } else {
         new TrackPlaceBlockCommand(parent()->timeline_node_, ghost->Track(), clip, ghost->GetAdjustedIn(), command);

app/widget/timelineview/tool/pointer.cpp

@@ -24,6 +24,7 @@
 #include <QToolTip>
 
 #include "common/clamp.h"
+#include "common/flipmodifiers.h"
 #include "common/range.h"
 #include "common/timecodefunctions.h"
 #include "config/config.h"
@@ -36,44 +37,25 @@ TimelineView::PointerTool::PointerTool(TimelineView *parent) :
   trimming_allowed_(true),
   track_movement_allowed_(true)
 {
+  set_drag_mode(RubberBandDrag);
+  set_enable_default_behavior(true);
 }
 
-void FlipControlAndShiftModifiers(QMouseEvent* e) {
-  if (e->modifiers() & Qt::ControlModifier & Qt::ShiftModifier) {
-    return;
-  }
-
-  if (e->modifiers() & Qt::ShiftModifier) {
-    e->setModifiers((e->modifiers() | Qt::ControlModifier) & ~Qt::ShiftModifier);
-  } else if (e->modifiers() & Qt::ControlModifier) {
-    e->setModifiers((e->modifiers() | Qt::ShiftModifier) & ~Qt::ControlModifier);
-  }
-}
-
-void TimelineView::PointerTool::MousePress(QMouseEvent *event)
+void TimelineView::PointerTool::MousePress(TimelineViewMouseEvent *event)
 {
-  // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
-  FlipControlAndShiftModifiers(event);
-
-  // Default QGraphicsView behavior (item selection)
-  parent()->QGraphicsView::mousePressEvent(event);
-
   // We don't initiate dragging here since clicking could easily be just for selecting
+  Q_UNUSED(event)
 }
 
-void TimelineView::PointerTool::MouseMove(QMouseEvent *event)
+void TimelineView::PointerTool::MouseMove(TimelineViewMouseEvent *event)
 {
-  // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
-  FlipControlAndShiftModifiers(event);
-
-  // Default QGraphicsView behavior (item selection)
-  parent()->QGraphicsView::mouseMoveEvent(event);
+  qDebug() << dragging_ << parent()->ghost_items_.isEmpty();
 
   // Now that the cursor has moved, we will assume the intention is to drag
   if (!dragging_) {
 
     // If we haven't started dragging yet, we'll initiate a drag here
-    InitiateDrag(event->pos());
+    InitiateDrag(event->GetCoordinates());
 
     // Set dragging to true here so no matter what, the drag isn't re-initiated until it's completed
     dragging_ = true;
@@ -81,19 +63,13 @@ void TimelineView::PointerTool::MouseMove(QMouseEvent *event)
   } else if (!parent()->ghost_items_.isEmpty()) {
 
     // We're already dragging AND we have ghosts to work with
-    ProcessDrag(event->pos());
+    ProcessDrag(event->GetCoordinates());
 
   }
 }
 
-void TimelineView::PointerTool::MouseRelease(QMouseEvent *event)
+void TimelineView::PointerTool::MouseRelease(TimelineViewMouseEvent *event)
 {
-  // We use Shift for multiple selection while Qt uses Ctrl, we flip those modifiers here to compensate
-  FlipControlAndShiftModifiers(event);
-
-  // Default QGraphicsView behavior (item selection)
-  parent()->QGraphicsView::mouseReleaseEvent(event);
-
   if (!parent()->ghost_items_.isEmpty()) {
     MouseReleaseInternal(event);
   }
@@ -121,7 +97,7 @@ void TimelineView::PointerTool::SetTrimmingAllowed(bool allowed)
   trimming_allowed_ = allowed;
 }
 
-void TimelineView::PointerTool::MouseReleaseInternal(QMouseEvent *event)
+void TimelineView::PointerTool::MouseReleaseInternal(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 
@@ -177,13 +153,13 @@ rational TimelineView::PointerTool::FrameValidateInternal(rational time_movement
   return time_movement;
 }
 
-void TimelineView::PointerTool::InitiateDrag(const QPoint& mouse_pos)
+void TimelineView::PointerTool::InitiateDrag(const TimelineCoordinate &mouse_pos)
 {
   // Record where the drag started in timeline coordinates
-  drag_start_ = GetScenePos(mouse_pos);
+  drag_start_ = mouse_pos;
 
   // Get the item that was clicked
-  TimelineViewBlockItem* clicked_item = dynamic_cast<TimelineViewBlockItem*>(GetItemAtScenePos(drag_start_));
+  TimelineViewBlockItem* clicked_item = GetItemAtScenePos(drag_start_);
 
   // We only initiate a pointer drag if the user actually dragged an item, otherwise if they dragged on empty space
   // QGraphicsView default behavior would initiate a rubberband drag
@@ -193,7 +169,7 @@ void TimelineView::PointerTool::InitiateDrag(const QPoint& mouse_pos)
     snap_points_.clear();
 
     // Record where the drag started in timeline coordinates
-    track_start_ = parent()->SceneToTrack(drag_start_.y());
+    track_start_ = mouse_pos.GetTrack();
 
     // Determine whether we're trimming or moving based on the position of the cursor
     olive::timeline::MovementMode trim_mode = olive::timeline::kNone;
@@ -201,9 +177,11 @@ void TimelineView::PointerTool::InitiateDrag(const QPoint& mouse_pos)
     // FIXME: Hardcoded number
     const int kTrimHandle = 20;
 
-    if (trimming_allowed_ && drag_start_.x() < clicked_item->x() + kTrimHandle) {
+    qreal mouse_x = parent()->TimeToScreenCoord(mouse_pos.GetFrame());
+
+    if (trimming_allowed_ && mouse_x < clicked_item->x() + kTrimHandle) {
       trim_mode = olive::timeline::kTrimIn;
-    } else if (trimming_allowed_ && drag_start_.x() > clicked_item->x() + clicked_item->rect().right() - kTrimHandle) {
+    } else if (trimming_allowed_ && mouse_x > clicked_item->x() + clicked_item->rect().right() - kTrimHandle) {
       trim_mode = olive::timeline::kTrimOut;
     } else if (movement_allowed_) {
       // Some derived classes don't allow movement
@@ -222,14 +200,10 @@ void TimelineView::PointerTool::InitiateDrag(const QPoint& mouse_pos)
   }
 }
 
-void TimelineView::PointerTool::ProcessDrag(const QPoint &mouse_pos)
+void TimelineView::PointerTool::ProcessDrag(const TimelineCoordinate &mouse_pos)
 {
-  // Retrieve cursor position difference
-  QPointF scene_pos = GetScenePos(mouse_pos);
-  QPointF movement = scene_pos - drag_start_;
-
   // Determine track movement
-  int cursor_track = parent()->SceneToTrack(scene_pos.y());
+  int cursor_track = mouse_pos.GetTrack();
   int track_movement = 0;
 
   if (track_movement_allowed_) {
@@ -237,7 +211,7 @@ void TimelineView::PointerTool::ProcessDrag(const QPoint &mouse_pos)
   }
 
   // Determine frame movement
-  rational time_movement = parent()->SceneToTime(movement.x());
+  rational time_movement = mouse_pos.GetFrame() - drag_start_.GetFrame();
 
   // Perform snapping if enabled (adjusts time_movement if it's close to any potential snap points)
   if (olive::core.snapping()) {

app/widget/timelineview/tool/razor.cpp

@@ -25,36 +25,34 @@ TimelineView::RazorTool::RazorTool(TimelineView* parent) :
 {
 }
 
-void TimelineView::RazorTool::MousePress(QMouseEvent *event)
+void TimelineView::RazorTool::MousePress(TimelineViewMouseEvent *event)
 {
   split_tracks_.clear();
 
   MouseMove(event);
 }
 
-void TimelineView::RazorTool::MouseMove(QMouseEvent *event)
+void TimelineView::RazorTool::MouseMove(TimelineViewMouseEvent *event)
 {
   if (!dragging_) {
-    drag_start_ = GetScenePos(event->pos());
+    drag_start_ = event->GetCoordinates();
     dragging_ = true;
   }
 
-  QPointF current_scene_pos = GetScenePos(event->pos());
-
   // Split at the current cursor track
-  int split_track = parent()->SceneToTrack(current_scene_pos.y());
+  int split_track = event->GetCoordinates().GetTrack();
 
   if (!split_tracks_.contains(split_track)) {
     split_tracks_.append(split_track);
   }
 }
 
-void TimelineView::RazorTool::MouseRelease(QMouseEvent *event)
+void TimelineView::RazorTool::MouseRelease(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 
   // Always split at the same time
-  rational split_time = parent()->SceneToTime(drag_start_.x());
+  rational split_time = drag_start_.GetFrame();
 
   QUndoCommand* command = new QUndoCommand();
 

app/widget/timelineview/tool/ripple.cpp

@@ -28,7 +28,7 @@ TimelineView::RippleTool::RippleTool(TimelineView* parent) :
   SetMovementAllowed(false);
 }
 
-void TimelineView::RippleTool::MouseReleaseInternal(QMouseEvent *event)
+void TimelineView::RippleTool::MouseReleaseInternal(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 

app/widget/timelineview/tool/rolling.cpp

@@ -28,7 +28,7 @@ TimelineView::RollingTool::RollingTool(TimelineView* parent) :
   SetMovementAllowed(false);
 }
 
-void TimelineView::RollingTool::MouseReleaseInternal(QMouseEvent *event)
+void TimelineView::RollingTool::MouseReleaseInternal(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 

app/widget/timelineview/tool/slide.cpp

@@ -29,7 +29,7 @@ TimelineView::SlideTool::SlideTool(TimelineView* parent) :
   SetTrackMovementAllowed(false);
 }
 
-void TimelineView::SlideTool::MouseReleaseInternal(QMouseEvent *event)
+void TimelineView::SlideTool::MouseReleaseInternal(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 

app/widget/timelineview/tool/slip.cpp

@@ -32,14 +32,10 @@ TimelineView::SlipTool::SlipTool(TimelineView *parent) :
   SetTrackMovementAllowed(false);
 }
 
-void TimelineView::SlipTool::ProcessDrag(const QPoint &mouse_pos)
+void TimelineView::SlipTool::ProcessDrag(const TimelineCoordinate &mouse_pos)
 {
-  // Retrieve cursor position difference
-  QPointF scene_pos = GetScenePos(mouse_pos);
-  QPointF movement = scene_pos - drag_start_;
-
   // Determine frame movement
-  rational time_movement = -parent()->SceneToTime(movement.x());
+  rational time_movement = drag_start_.GetFrame() - mouse_pos.GetFrame();
 
   // Validate slip (enforce all ghosts moving in legal ways)
   foreach (TimelineViewGhostItem* ghost, parent()->ghost_items_) {
@@ -65,7 +61,7 @@ void TimelineView::SlipTool::ProcessDrag(const QPoint &mouse_pos)
                      parent());
 }
 
-void TimelineView::SlipTool::MouseReleaseInternal(QMouseEvent *event)
+void TimelineView::SlipTool::MouseReleaseInternal(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 

app/widget/timelineview/tool/tool.cpp

@@ -26,25 +26,15 @@
 
 TimelineView::Tool::Tool(TimelineView *parent) :
   dragging_(false),
-  parent_(parent)
+  parent_(parent),
+  drag_mode_(NoDrag),
+  enable_default_behavior_(false)
 {
 }
 
-TimelineView::Tool::~Tool(){}
-
-void TimelineView::Tool::MousePress(QMouseEvent *){}
-
-void TimelineView::Tool::MouseMove(QMouseEvent *){}
-
-void TimelineView::Tool::MouseRelease(QMouseEvent *){}
-
-void TimelineView::Tool::DragEnter(QDragEnterEvent *){}
-
-void TimelineView::Tool::DragMove(QDragMoveEvent *){}
-
-void TimelineView::Tool::DragLeave(QDragLeaveEvent *){}
-
-void TimelineView::Tool::DragDrop(QDropEvent *){}
+TimelineView::Tool::~Tool()
+{
+}
 
 TimelineView *TimelineView::Tool::parent()
 {
@@ -64,14 +54,44 @@ olive::timeline::MovementMode TimelineView::Tool::FlipTrimMode(const olive::time
   return trim_mode;
 }
 
-QPointF TimelineView::Tool::GetScenePos(const QPoint &screen_pos)
+const QGraphicsView::DragMode &TimelineView::Tool::drag_mode()
 {
-  return parent()->mapToScene(screen_pos);
+  return drag_mode_;
 }
 
-QGraphicsItem *TimelineView::Tool::GetItemAtScenePos(const QPointF &scene_pos)
+bool TimelineView::Tool::enable_default_behavior()
 {
-  return parent()->scene_.itemAt(scene_pos, parent()->transform());
+  return enable_default_behavior_;
+}
+
+void TimelineView::Tool::set_drag_mode(const QGraphicsView::DragMode &mode)
+{
+  drag_mode_ = mode;
+}
+
+void TimelineView::Tool::set_enable_default_behavior(bool enable)
+{
+  enable_default_behavior_ = enable;
+}
+
+TimelineViewBlockItem *TimelineView::Tool::GetItemAtScenePos(const TimelineCoordinate& coord)
+{
+  QMapIterator<Block*, TimelineViewBlockItem*> iterator(parent()->block_items_);
+
+  while (iterator.hasNext()) {
+    iterator.next();
+
+    Block* b = iterator.key();
+    TimelineViewBlockItem* item = iterator.value();
+
+    if (b->in() <= coord.GetFrame()
+        && b->out() > coord.GetFrame()
+        && item->Track() == coord.GetTrack()) {
+      return item;
+    }
+  }
+
+  return nullptr;
 }
 
 void AttemptSnap(const QList<double>& proposed_pts,

app/widget/timelineview/tool/zoom.cpp

@@ -25,26 +25,31 @@ TimelineView::ZoomTool::ZoomTool(TimelineView* parent) :
 {
 }
 
-void TimelineView::ZoomTool::MousePress(QMouseEvent *event)
+void TimelineView::ZoomTool::MousePress(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 }
 
-void TimelineView::ZoomTool::MouseMove(QMouseEvent *event)
+void TimelineView::ZoomTool::MouseMove(TimelineViewMouseEvent *event)
 {
   Q_UNUSED(event)
 }
 
-void TimelineView::ZoomTool::MouseRelease(QMouseEvent *event)
+void TimelineView::ZoomTool::MouseRelease(TimelineViewMouseEvent *event)
 {
   double scale = parent()->scale_;
 
-  QPointF center_location = parent()->mapToScene(event->pos());
+  // Get center of viewport
+  QPoint viewport_center = parent()->viewport()->rect().center();
+  QPointF scene_center = parent()->mapToScene(viewport_center);
+
+  // Set X to time
+  scene_center.setX(parent()->TimeToScreenCoord(event->GetCoordinates().GetFrame()));
 
   // Normalize zoom location for 1.0 scale
-  double scaled_x = center_location.x() / scale;
+  double scaled_x = scene_center.x() / scale;
 
-  if (event->modifiers() & Qt::AltModifier) {
+  if (event->GetModifiers() & Qt::AltModifier) {
     // Zoom out if the user clicks while holding Alt
     scale *= 0.5;
   } else {
@@ -57,7 +62,7 @@ void TimelineView::ZoomTool::MouseRelease(QMouseEvent *event)
 
   // Adjust zoom location for new scale
   scaled_x *= scale;
-  center_location.setX(scaled_x);
+  scene_center.setX(scaled_x);
 
-  parent()->centerOn(center_location);
+  parent()->centerOn(scene_center);
 }

app/widget/timelinewidget/timelinewidget.cpp

@@ -120,7 +120,7 @@ void TimelineWidget::ConnectTimelineNode(TimelineOutput *node)
   int track_type = 0;
 
   foreach (TimelineView* view, views_) {
-    view->ConnectTimelineNode(node->track_list(static_cast<TimelineOutput::TrackType>(track_type)));
+    view->ConnectTimelineNode(node->track_list(static_cast<TrackType>(track_type)));
 
     track_type++;
   }