timeline-zoom-scale.hpp

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/*
  TIMELINE-ZOOM-SCALE.hpp  -  widget to control timeline zoom scale
 
   Copyright (C)
     2011,            Michael R. Fisher <mfisher31@gmail.com>
 
 **Lumiera** 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 2 of the License, or (at your
 option) any later version. See the file COPYING for further details.
 
*/
 
 
#ifndef STAGE_WIDGET_TIMELINE_ZOOM_SCALE_H
#define STAGE_WIDGET_TIMELINE_ZOOM_SCALE_H
 
#include "stage/gtk-base.hpp"
#include "stage/widget/mini-button.hpp"
 
 
namespace stage {
namespace widget {
  
  class TimelineZoomScale
    : public Gtk::HBox
    {
    public:
      TimelineZoomScale();
      
      sigc::signal<void, double> signal_zoom();
      
      void set_value(double val) { adjustment->set_value(val); }
      
      void wireTimelineState (/* TODO what to pass here? */);   
      
      
      
    private: /* ===== Event Handlers ===== */
      
      void on_timeline_state_changed (/* TODO what to pass here? */);
      
      void on_zoom_in_clicked();
      
      void on_zoom_out_clicked();
      
      void on_zoom();
      
      /* Widgets */
      Glib::RefPtr<Gtk::Adjustment> adjustment;
      Gtk::HScale slider;
      MiniButton zoomIn;
      MiniButton zoomOut;
      
      
    private:
      sigc::signal<void, double> zoomSignal;
      const double button_step_size;
    };
  
  
}}// namespace stage::widget
#endif /*STAGE_WIDGET_TIMELINE_ZOOM_SCALE_H*/