gtk2_ardour/marker_view.cc

   1 /*
   2     Copyright (C) 2003 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <gtkmm.h>
  21
  22 #include "imageframe_time_axis.h"
  23 #include "imageframe_view.h"
  24 #include "canvas-simplerect.h"
  25 #include "public_editor.h"
  26 #include "marker_view.h"
  27
  28 using namespace ARDOUR ;
  29 using namespace sigc;
  30
  31 sigc::signal<void,MarkerView*> MarkerView::GoingAway;
  32
  33 //---------------------------------------------------------------------------------------//
  34 // Constructor / Desctructor
  35
  36 /**
  37  * Constructs a new MarkerView
  38  *
  39  * @param parent the parent canvas item
  40  * @param tv the parent TimeAxisView of this item
  41  * @param tavi the TimeAxisViewItem that this item is to be assciated (marking) with
  42  * @param spu the current samples per unit
  43  * @param base_color
  44  * @param mark_type the marker type/name text, eg fade out, pan up etc.
  45  * @param mark_id unique name/id of this item
  46  * @param start the start time of this item
  47  * @param duration the duration of this item
  48  */
  49 MarkerView::MarkerView(ArdourCanvas::Group *parent,
  50                        TimeAxisView* tv,
  51                        ImageFrameView* marked,
  52                        double spu,
  53                        Gdk::Color& basic_color,
  54                        std::string mark_type,
  55                        std::string mark_id,
  56                        nframes_t start,
  57                        nframes_t duration)
  58   : TimeAxisViewItem(mark_id, *parent,*tv,spu,basic_color,start,duration)
  59 {
  60         mark_type_text = mark_type ;
  61         marked_item = marked ;
  62
  63         // set the canvas item text to the marker type, not the id
  64         set_name_text(mark_type_text) ;
  65
  66         // hook up our canvas events
  67
  68         frame_handle_start->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_start_handle_event), frame_handle_start, this));
  69         frame_handle_end->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_end_handle_event), frame_handle_end, this));
  70         group->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_item_view_event), group, this));
  71
  72         set_position(start, this) ;
  73         set_duration(duration, this) ;
  74 }
  75
  76 /**
  77  * Destructor
  78  * Destroys this Marker Item and removes the association between itself and the item it is marking.
  79  */
  80 MarkerView::~MarkerView()
  81 {
  82         // remove the association our marked may still have to us
  83         if(marked_item)
  84         {
  85                 marked_item->remove_marker_view_item(this, this) ;
  86         }
  87 }
  88
  89
  90 //---------------------------------------------------------------------------------------//
  91 // Marker Type Methods
  92
  93 /**
  94  * Sets the marker Type text of this this MarkerItem, eg fade_out, pan up etc.
  95  *
  96  * @param type_text the marker type text of this item
  97  */
  98 void
  99 MarkerView::set_mark_type_text(std::string type_text)
 100 {
 101         mark_type_text = type_text ;
 102          MarkTypeChanged(mark_type_text, this) ; /* EMIT_SIGNAL */
 103 }
 104
 105 /**
 106  * Returns the marker Type of this this MarkerItem, eg fade_out, pan up etc.
 107  *
 108  * @return the marker type text of this item
 109  */
 110 std::string
 111 MarkerView::get_mark_type_text() const
 112 {
 113         return(mark_type_text) ;
 114 }
 115
 116
 117 //---------------------------------------------------------------------------------------//
 118 // Marked Item Methods
 119
 120 ImageFrameView*
 121 MarkerView::set_marked_item(ImageFrameView* item)
 122 {
 123         ImageFrameView* temp = marked_item ;
 124         marked_item = item ;
 125
 126          MarkedItemChanged(marked_item, this) ; /* EMIT_SIGNAL */
 127         return(temp) ;
 128 }
 129
 130 ImageFrameView*
 131 MarkerView::get_marked_item()
 132 {
 133         return(marked_item) ;
 134 }