added some more timeline functions

app/node/block/block.cpp

@@ -59,9 +59,16 @@ const rational &Block::out()
   return out_point_;
 }
 
+const rational& Block::length()
+{
+  return length_;
+}
+
 void Block::set_length(const rational &length)
 {
-  Q_UNUSED(length)
+  length_ = length;
+
+  RefreshFollowing();
 }
 
 Block *Block::previous()

app/node/block/block.h

@@ -41,6 +41,8 @@ public:
     kEnd
   };
 
+  virtual Block* copy() = 0;
+
   virtual Type type() = 0;
 
   virtual QString Category() override;
@@ -48,8 +50,8 @@ public:
   const rational& in();
   const rational& out();
 
-  virtual rational length() = 0;
-  virtual void set_length(const rational& length);
+  virtual const rational &length();
+  virtual void set_length(const rational &length);
 
   virtual Block* previous();
   virtual Block* next();
@@ -106,6 +108,8 @@ private:
   rational in_point_;
   rational out_point_;
 
+  rational length_;
+
 private slots:
   void BlockOrderChanged(NodeEdgePtr edge);
 

app/node/block/clip/clip.cpp

@@ -29,6 +29,19 @@ ClipBlock::ClipBlock()
   AddParameter(texture_input_);
 }
 
+Block *ClipBlock::copy()
+{
+  ClipBlock* c = new ClipBlock();
+
+  // Duplicate connection
+  // FIXME: This behavior should probably be configurable
+  if (texture_input()->IsConnected()) {
+    NodeParam::ConnectEdge(texture_input()->edges().first()->output(), c->texture_input());
+  }
+
+  return new ClipBlock();
+}
+
 Block::Type ClipBlock::type()
 {
   return kClip;
@@ -49,18 +62,6 @@ QString ClipBlock::Description()
   return tr("A time-based node that represents a media source.");
 }
 
-rational ClipBlock::length()
-{
-  return length_;
-}
-
-void ClipBlock::set_length(const rational &length)
-{
-  length_ = length;
-
-  RefreshFollowing();
-}
-
 NodeInput *ClipBlock::texture_input()
 {
   return texture_input_;

app/node/block/clip/clip.h

@@ -32,15 +32,14 @@ class ClipBlock : public Block
 public:
   ClipBlock();
 
+  virtual Block* copy() override;
+
   virtual Type type() override;
 
   virtual QString Name() override;
   virtual QString id() override;
   virtual QString Description() override;
 
-  virtual rational length() override;
-  virtual void set_length(const rational &length) override;
-
   NodeInput* texture_input();
 
 public slots:
@@ -51,7 +50,6 @@ private:
 
   rational media_in_;
 
-  rational length_;
 };
 
 #endif // TIMELINEBLOCK_H

app/node/block/gap/gap.cpp

@@ -24,6 +24,11 @@ GapBlock::GapBlock()
 {
 }
 
+Block *GapBlock::copy()
+{
+  return new GapBlock();
+}
+
 Block::Type GapBlock::type()
 {
   return kGap;
@@ -43,15 +48,3 @@ QString GapBlock::Description()
 {
   return tr("A time-based node that represents an empty space.");
 }
-
-rational GapBlock::length()
-{
-  return length_;
-}
-
-void GapBlock::set_length(const rational &length)
-{
-  length_ = length;
-
-  RefreshFollowing();
-}

app/node/block/gap/gap.h

@@ -32,17 +32,16 @@ class GapBlock : public Block
 public:
   GapBlock();
 
+  virtual Block * copy() override;
+
   virtual Type type() override;
 
   virtual QString Name() override;
   virtual QString id() override;
   virtual QString Description() override;
 
-  virtual rational length() override;
-  virtual void set_length(const rational &length) override;
-
 private:
-  rational length_;
+
 };
 
 #endif // TIMELINEBLOCK_H