derive clips, tracks, and sequences from the same base

effects/internal/richtexteffect.cpp

@@ -143,8 +143,8 @@ void RichTextEffect::redraw(double timecode)
   double scroll_progress = 0;
 
   if (auto_scroll_dir != SCROLL_OFF) {
-    double clip_length_secs = double(parent_clip->length()) / parent_clip->media_frame_rate();
-    scroll_progress = (timecode - double(parent_clip->clip_in()) / parent_clip->media_frame_rate()) / clip_length_secs;
+    double clip_length_secs = double(parent_clip->length()) / parent_clip->MediaFrameRate();
+    scroll_progress = (timecode - double(parent_clip->clip_in()) / parent_clip->MediaFrameRate()) / clip_length_secs;
   }
 
   if (auto_scroll_dir == SCROLL_OFF || auto_scroll_dir == SCROLL_LEFT || auto_scroll_dir == SCROLL_RIGHT) {

effects/internal/shakeeffect.cpp

@@ -28,7 +28,6 @@
 #include "ui/labelslider.h"
 #include "ui/collapsiblewidget.h"
 #include "timeline/clip.h"
-#include "timeline/sequence.h"
 #include "panels/timeline.h"
 #include "global/debug.h"
 

effects/internal/solideffect.cpp

@@ -28,7 +28,6 @@
 #include <QComboBox>
 
 #include "timeline/clip.h"
-#include "timeline/sequence.h"
 
 const int SMPTE_BARS = 7;
 const int SMPTE_STRIP_COUNT = 3;

effects/internal/texteffect.cpp

@@ -36,7 +36,6 @@
 #include "ui/labelslider.h"
 #include "ui/collapsiblewidget.h"
 #include "timeline/clip.h"
-#include "timeline/sequence.h"
 #include "ui/comboboxex.h"
 #include "ui/colorbutton.h"
 #include "ui/blur.h"

effects/internal/timecodeeffect.cpp

@@ -118,7 +118,7 @@ void TimecodeEffect::redraw(double timecode) {
                                                                                olive::config.timecode_view,
                                                                                sequence->frame_rate);
   } else {
-    double media_rate = parent_clip->media_frame_rate();
+    double media_rate = parent_clip->MediaFrameRate();
     display_timecode = prepend_text->GetStringAt(timecode) + frame_to_timecode(qRound(timecode * media_rate),
                                                                                olive::config.timecode_view,
                                                                                media_rate);

effects/internal/toneeffect.cpp

@@ -25,7 +25,7 @@
 #define TONE_TYPE_SINE 0
 
 #include "timeline/clip.h"
-#include "timeline/sequence.h"
+#include "rendering/audio.h"
 
 ToneEffect::ToneEffect(Clip* c) : Node(c), sinX(INT_MIN) {
   type_val = new ComboInput(this, "type", tr("Type"));
@@ -90,7 +90,7 @@ void ToneEffect::process_audio(double timecode_start,
 
     double timecode = timecode_start+(interval*i);
     float tone_sample = qSin((2*M_PI*sinX*freq_val->GetDoubleAt(timecode))
-                                           /parent_clip->track()->sequence()->audio_frequency)
+                                           /current_audio_freq())
                                       *log_volume(amount_val->GetDoubleAt(timecode)*0.01);
 
     for (int j=0;j<channel_count;j++) {

effects/transition.cpp

@@ -50,14 +50,19 @@ Transition::Transition(Clip *c) :
   length_field->SetDisplayType(LabelSlider::FrameNumber);
 
   if (parent_clip != nullptr) {
-    length_field->SetFrameRate(parent_clip->track()->sequence() == nullptr ?
-                                 parent_clip->cached_frame_rate() : parent_clip->track()->sequence()->frame_rate);
+    length_field->SetFrameRate(GetParentClip()->track()->sequence() == nullptr ?
+                                 GetParentClip()->cached_frame_rate() : GetParentClip()->SequenceFrameRate());
   }
 
   connect(length_field, SIGNAL(Changed()), this, SLOT(UpdateMaximumLength()));
 }
 
-NodePtr Transition::copy(Clip *c) {
+Clip *Transition::GetParentClip()
+{
+  return static_cast<Clip*>(parent_clip);
+}
+
+NodePtr Transition::copy(TimelineObject *c) {
   NodePtr node = Node::copy(c);
 
   static_cast<Transition*>(node.get())->set_length(get_true_length());
@@ -86,8 +91,8 @@ int Transition::get_length() {
 }
 
 Clip* Transition::get_opened_clip() {
-  if (parent_clip->opening_transition.get() == this) {
-    return parent_clip;
+  if (GetParentClip()->opening_transition.get() == this) {
+    return GetParentClip();
   } else if (secondary_clip != nullptr && secondary_clip->opening_transition.get() == this) {
     return secondary_clip;
   }
@@ -95,8 +100,8 @@ Clip* Transition::get_opened_clip() {
 }
 
 Clip* Transition::get_closed_clip() {
-  if (parent_clip->closing_transition.get() == this) {
-    return parent_clip;
+  if (GetParentClip()->closing_transition.get() == this) {
+    return GetParentClip();
   } else if (secondary_clip != nullptr && secondary_clip->closing_transition.get() == this) {
     return secondary_clip;
   }
@@ -131,7 +136,7 @@ TransitionPtr Transition::CreateFromMeta(Clip* c, Clip* s) {
 void Transition::UpdateMaximumLength()
 {
   // Get the maximum area this transition can occupy on the clip
-  long maximum_length = GetMaximumEmptySpaceOnClip(parent_clip);
+  long maximum_length = GetMaximumEmptySpaceOnClip(GetParentClip());
 
   // If this clip is a shared transition, get the maximum area this can occupy on the other clip too
   if (secondary_clip != nullptr) {

effects/transition.h

@@ -24,6 +24,8 @@
 #include "nodes/node.h"
 #include "nodes/inputs.h"
 
+class Clip;
+
 enum TransitionType {
   kTransitionNone,
   kTransitionOpening,
@@ -38,7 +40,9 @@ class Transition : public Node {
 public:
   Transition(Clip* c);
 
-  virtual NodePtr copy(Clip* c) override;
+  virtual NodePtr copy(TimelineObject* c) override;
+
+  Clip* GetParentClip();
 
   Clip* secondary_clip;