reimplemented some of keyframing

ui/keyframenavigator.cpp

@@ -60,7 +60,8 @@ KeyframeNavigator::KeyframeNavigator(QWidget *parent, bool addLeftPad) : QWidget
   connect(right_key_nav, SIGNAL(clicked(bool)), this, SIGNAL(goto_next_key()));
   connect(right_key_nav, SIGNAL(clicked(bool)), this, SIGNAL(clicked()));
 
-  keyframe_enable = new QPushButton(olive::icon::Clock, "", this);
+  keyframe_enable = new QPushButton(this);
+  keyframe_enable->setIcon(olive::icon::Clock);
   keyframe_enable->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
   keyframe_enable->setIconSize(keyframe_enable->iconSize()*0.75);
   keyframe_enable->setCheckable(true);

ui/keyframenavigator.h

@@ -28,26 +28,26 @@ class QPushButton;
 
 class KeyframeNavigator : public QWidget
 {
-	Q_OBJECT
+  Q_OBJECT
 public:
-	KeyframeNavigator(QWidget* parent = 0, bool addLeftPad = true);
-	~KeyframeNavigator();
-	void enable_keyframes(bool);
-	void enable_keyframe_toggle(bool);
+  KeyframeNavigator(QWidget* parent = nullptr, bool addLeftPad = true);
+  ~KeyframeNavigator();
+  void enable_keyframes(bool);
+  void enable_keyframe_toggle(bool);
 signals:
-	void goto_previous_key();
-	void toggle_key();
-	void goto_next_key();
-	void keyframe_enabled_changed(bool);
-	void clicked();
+  void goto_previous_key();
+  void toggle_key();
+  void goto_next_key();
+  void keyframe_enabled_changed(bool);
+  void clicked();
 private slots:
-	void keyframe_ui_enabled(bool);
+  void keyframe_ui_enabled(bool);
 private:
-	QHBoxLayout* key_controls;
-	QPushButton* left_key_nav;
-	QPushButton* key_addremove;
-	QPushButton* right_key_nav;
-	QPushButton* keyframe_enable;
+  QHBoxLayout* key_controls;
+  QPushButton* left_key_nav;
+  QPushButton* key_addremove;
+  QPushButton* right_key_nav;
+  QPushButton* keyframe_enable;
 };
 
 #endif // KEYFRAMENAVIGATOR_H