libs/gtkmm2ext/gtkmm2ext/motionfeedback.h

   1 /*
   2     Copyright (C) 1998-99 Paul Barton-Davis
   3     This program is free software; you can redistribute it and/or modify
   4     it under the terms of the GNU General Public License as published by
   5     the Free Software Foundation; either version 2 of the License, or
   6     (at your option) any later version.
   7
   8     This program is distributed in the hope that it will be useful,
   9     but WITHOUT ANY WARRANTY; without even the implied warranty of
  10     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11     GNU General Public License for more details.
  12
  13     You should have received a copy of the GNU General Public License
  14     along with this program; if not, write to the Free Software
  15     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  16
  17     $Id: motionfeedback.h,v 1.1.1.1 2001/11/24 00:44:46 pbd Exp $
  18 */
  19
  20 #ifndef __gtkmm2ext_motion_feedback_h__
  21 #define __gtkmm2ext_motion_feedback_h__
  22
  23 #include <gdkmm/pixbuf.h>
  24 #include <gtkmm/box.h>
  25 #include <gtkmm/eventbox.h>
  26
  27 #include "gtkmm2ext/binding_proxy.h"
  28 #include "gtkmm2ext/prolooks-helpers.h"
  29
  30 namespace Gtk {
  31         class Adjustment;
  32         class SpinButton;
  33 }
  34
  35 namespace Gtkmm2ext {
  36
  37 class MotionFeedback : public Gtk::VBox
  38 {
  39  public:
  40         enum Type {
  41                 Rotary,
  42                 CenterSpring,
  43                 Endless
  44         };
  45
  46         MotionFeedback (Glib::RefPtr<Gdk::Pixbuf>,
  47                         Type type,
  48                         const char *widget_name = NULL,
  49                         Gtk::Adjustment *adj = NULL,
  50                         bool with_numeric_display = true,
  51                         int sub_image_width = 40,
  52                         int sub_image_height = 40);
  53         virtual ~MotionFeedback ();
  54
  55         void set_adjustment (Gtk::Adjustment *adj);
  56         Gtk::Adjustment *get_adjustment () { return adjustment; }
  57
  58         Gtk::Widget&     eventwin () { return pixwin; }
  59         Gtk::SpinButton& spinner() const { return *value; }
  60
  61         gfloat lower () { return _lower; }
  62         gfloat upper () { return _upper; }
  63         gfloat range () { return _range; }
  64
  65         boost::shared_ptr<PBD::Controllable> controllable() const;
  66         virtual void set_controllable (boost::shared_ptr<PBD::Controllable> c);
  67         void set_lamp_color (const Gdk::Color&);
  68
  69         static Glib::RefPtr<Gdk::Pixbuf> render_pixbuf (int size);
  70
  71  protected:
  72         gfloat _range;
  73         gfloat _lower;
  74         gfloat _upper;
  75
  76         void pixwin_size_request (GtkRequisition *);
  77
  78         bool pixwin_button_press_event (GdkEventButton *);
  79         bool pixwin_button_release_event (GdkEventButton *);
  80         bool pixwin_motion_notify_event (GdkEventMotion *);
  81         bool pixwin_key_press_event (GdkEventKey *);
  82         bool pixwin_enter_notify_event (GdkEventCrossing *);
  83         bool pixwin_leave_notify_event (GdkEventCrossing *);
  84         bool pixwin_focus_in_event (GdkEventFocus*);
  85         bool pixwin_focus_out_event (GdkEventFocus *);
  86         bool pixwin_expose_event (GdkEventExpose*);
  87         bool pixwin_scroll_event (GdkEventScroll*);
  88         void pixwin_realized ();
  89
  90   private:
  91         Type type;
  92         Gtk::EventBox      pixwin;
  93         Gtk::HBox*         value_packer;
  94         Gtk::SpinButton*   value;
  95         Gtk::Adjustment*   adjustment;
  96         Glib::RefPtr<Gdk::Pixbuf> pixbuf;
  97         BindingProxy       binding_proxy;
  98
  99         double default_value;
 100         double  step_inc;
 101         double page_inc;
 102         bool   grab_is_fine;
 103         double grabbed_y;
 104         double grabbed_x;
 105         bool i_own_my_adjustment;
 106         int subwidth;
 107         int subheight;
 108         void adjustment_changed ();
 109
 110         ProlooksHSV* lamp_hsv;
 111         Gdk::Color _lamp_color;
 112         GdkColor lamp_bright;
 113         GdkColor lamp_dark;
 114
 115         static void core_draw (cairo_t*, int, double, double, double, double, const GdkColor* bright, const GdkColor* dark);
 116 };
 117
 118 } /* namespace */
 119
 120 #endif // __gtkmm2ext_motion_feedback_h__