adjust_window.h

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/* === S Y N F I G ========================================================= */
/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_TEMPLATE_H
#define __SYNFIG_TEMPLATE_H

/* === H E A D E R S ======================================================= */
#include <gtkmm/adjustment.h>

/* === M A C R O S ========================================================= */

/* === T Y P E D E F S ===================================================== */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace studio {

/* Sets up an adjustment that controls/communicates with another adjustment
    (could be expanded to multiple children)

    The current value and pagesize define the lower and upper bounds of the
    child adjustment.

    NEED TO REPLACE FUNCTIONALITY IN:
    refresh_rend_desc
    refresh_time_window
    on_time_changed - possibly....

    time_zoom_in - possibly...
    time_zoom_out - possibly...

    play - possibly...

    THINGS TO CHECK:
    disp_audio's use of time_adjustment
    children_tree's use of time_adjustment
    layer_tree's use of time_adjustment
*/
class Adjust_Window : public Gtk::Adjustment
{
    Glib::RefPtr<Gtk::Adjustment> adj_child;

    sigc::connection childchanged; //we only care about the non-value parts of the child

    virtual void on_changed(); //value+pagesize corresponds to child upper
    virtual void on_value_changed(); //value corresponds to child lower

protected: //update interface
    virtual void update_child();
    virtual void update_fromchild();

public: //structors
    Adjust_Window(double value, double lower, double upper,
                  double step_increment=1, double page_increment=10, double page_size=0,
                  const Glib::RefPtr<Gtk::Adjustment> &adj = Glib::RefPtr<Gtk::Adjustment>());

    virtual ~Adjust_Window();

public: //child interface
    Glib::RefPtr<Gtk::Adjustment> get_child_adjustment();
    Glib::RefPtr<const Gtk::Adjustment> get_child_adjustment() const;
    void set_child_adjustment(const Glib::RefPtr<Gtk::Adjustment> &child);

public: //Sub value interface
    double get_sub_lower() const;
    double get_sub_upper() const;
};

}; // END of namespace studio

/* === E N D =============================================================== */

#endif