wrote some clip drawing on timeline functions

app/node/output/timeline/timeline.cpp

@@ -67,6 +67,10 @@ void TimelineOutput::AttachTimeline(TimelinePanel *timeline)
   if (attached_timeline_ != nullptr) {
     attached_timeline_->Clear();
 
+    // FIXME: TEST CODE ONLY
+    attached_timeline_->SetTimebase(rational(1001, 30000));
+    // END TEST CODE
+
     Block* previous_block = attached_block();
     while (previous_block != nullptr) {
 

app/panel/timeline/timeline.cpp

@@ -58,6 +58,7 @@ void TimelinePanel::AddClip(ClipBlock *clip)
 void TimelinePanel::SetTimebase(const rational &timebase)
 {
   ruler_->SetTimebase(timebase);
+  view_->SetTimebase(timebase);
 }
 
 void TimelinePanel::changeEvent(QEvent *e)

app/widget/timelineview/CMakeLists.txt

@@ -20,5 +20,7 @@ set(OLIVE_SOURCES
   widget/timelineview/timelineview.cpp
   widget/timelineview/timelineviewclipitem.h
   widget/timelineview/timelineviewclipitem.cpp
+  widget/timelineview/timelineviewghostitem.h
+  widget/timelineview/timelineviewghostitem.cpp
   PARENT_SCOPE
 )

app/widget/timelineview/timelineview.cpp

@@ -6,6 +6,8 @@ TimelineView::TimelineView(QWidget *parent) :
   QGraphicsView(parent)
 {
   setScene(&scene_);
+  setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
+  setDragMode(RubberBandDrag);
 }
 
 void TimelineView::AddClip(ClipBlock *clip)
@@ -15,7 +17,9 @@ void TimelineView::AddClip(ClipBlock *clip)
   scene_.addItem(clip_item);
 
   // FIXME: Test code only
-  clip_item->setRect(clip->in().ToDouble(), 0, clip->out().ToDouble(), 100);
+  double framerate = timebase_.ToDouble();
+  double clip_item_x = clip->in().ToDouble() / framerate;
+  clip_item->setRect(clip_item_x, 0, clip->out().ToDouble() / framerate - clip_item_x - 1, 100);
   // End test code
 }
 
@@ -24,6 +28,11 @@ void TimelineView::SetScale(const double &scale)
   scale_ = scale;
 }
 
+void TimelineView::SetTimebase(const rational &timebase)
+{
+  timebase_ = timebase;
+}
+
 void TimelineView::Clear()
 {
   scene_.clear();

app/widget/timelineview/timelineview.h

@@ -14,12 +14,16 @@ public:
 
   void SetScale(const double& scale);
 
+  void SetTimebase(const rational& timebase);
+
   void Clear();
 
 private:
   QGraphicsScene scene_;
 
   double scale_;
+
+  rational timebase_;
 };
 
 #endif // TIMELINEVIEW_H

app/widget/timelineview/timelineviewclipitem.cpp

@@ -1,13 +1,43 @@
 #include "timelineviewclipitem.h"
 
+#include <QBrush>
+#include <QPainter>
+#include <QStyleOptionGraphicsItem>
+
 TimelineViewClipItem::TimelineViewClipItem(QGraphicsItem* parent) :
   QGraphicsRectItem(parent),
   clip_(nullptr)
 {
-  
+  setBrush(Qt::white);
+  setFlag(QGraphicsItem::ItemIsSelectable, true);
 }
 
 void TimelineViewClipItem::SetClip(ClipBlock *clip)
 {
   clip_ = clip;
 }
+
+void TimelineViewClipItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+  Q_UNUSED(widget)
+
+  /*QLinearGradient grad;
+  grad.setStart(0, 0);
+  grad.setFinalStop(0, rect().height());
+  grad.setColorAt(0.0, QColor(192, 192, 255));
+  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));
+  }
+
+  painter->setPen(Qt::white);
+  painter->drawLine(rect().topLeft(), QPointF(rect().right(), rect().top()));
+  painter->drawLine(rect().topLeft(), QPointF(rect().left(), rect().bottom() - 1));
+
+  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/timelineviewclipitem.h

@@ -12,6 +12,9 @@ public:
 
   void SetClip(ClipBlock* clip);
 
+protected:
+  virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
+
 private:
   ClipBlock* clip_;
 };

app/widget/timelineview/timelineviewghostitem.cpp

@@ -0,0 +1,6 @@
+#include "timelineviewghostitem.h"
+
+TimelineViewGhostItem::TimelineViewGhostItem()
+{
+
+}

app/widget/timelineview/timelineviewghostitem.h

@@ -0,0 +1,12 @@
+#ifndef TIMELINEVIEWGHOSTITEM_H
+#define TIMELINEVIEWGHOSTITEM_H
+
+#include <QGraphicsRectItem>
+
+class TimelineViewGhostItem : public QGraphicsRectItem
+{
+public:
+  TimelineViewGhostItem();
+};
+
+#endif // TIMELINEVIEWGHOSTITEM_H

app/widget/timeruler/timeruler.cpp

@@ -13,7 +13,7 @@ TimeRuler::TimeRuler(bool text_visible, QWidget* parent) :
   QWidget(parent),
   scroll_(0),
   centered_text_(true),
-  scale_(16.0), // FIXME: Temporary value
+  scale_(1.0), // FIXME: Temporary value
   time_(0)
 {
   QFontMetrics fm = fontMetrics();