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
  30 PBD::Signal1<void,MarkerView*> MarkerView::CatchDeletion
  31
  32 //---------------------------------------------------------------------------------------//
  33 // Constructor / Desctructor
  34
  35 /**
  36  * Constructs a new MarkerView
  37  *
  38  * @param parent the parent canvas item
  39  * @param tv the parent TimeAxisView of this item
  40  * @param tavi the TimeAxisViewItem that this item is to be assciated (marking) with
  41  * @param spu the current samples per unit
  42  * @param base_color
  43  * @param mark_type the marker type/name text, eg fade out, pan up etc.
  44  * @param mark_id unique name/id of this item
  45  * @param start the start time of this item
  46  * @param duration the duration of this item
  47  */
  48 MarkerView::MarkerView(ArdourCanvas::Group *parent,
  49                        TimeAxisView* tv,
  50                        ImageFrameView* marked,
  51                        double spu,
  52                        Gdk::Color& basic_color,
  53                        std::string mark_type,
  54                        std::string mark_id,
  55                        framepos_t start,
  56                        framecnt_t duration)
  57   : TimeAxisViewItem(mark_id, *parent,*tv,spu,basic_color,start,duration)
  58 {
  59         mark_type_text = mark_type ;
  60         marked_item = marked ;
  61
  62         // set the canvas item text to the marker type, not the id
  63         set_name_text(mark_type_text) ;
  64
  65         // hook up our canvas events
  66
  67         if (frame_handle_start) {
  68                 frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_start_handle_event), frame_handle_start, this));
  69                 frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_end_handle_event), frame_handle_end, this));
  70         }
  71         group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_item_view_event), group, this));
  72
  73         set_position(start, this) ;
  74         set_duration(duration, this) ;
  75 }
  76
  77 /**
  78  * Destructor
  79  * Destroys this Marker Item and removes the association between itself and the item it is marking.
  80  */
  81 MarkerView::~MarkerView()
  82 {
  83         // remove the association our marked may still have to us
  84         if(marked_item)
  85         {
  86                 marked_item->remove_marker_view_item(this, this) ;
  87         }
  88 }
  89
  90
  91 //---------------------------------------------------------------------------------------//
  92 // Marker Type Methods
  93
  94 /**
  95  * Sets the marker Type text of this this MarkerItem, eg fade_out, pan up etc.
  96  *
  97  * @param type_text the marker type text of this item
  98  */
  99 void
 100 MarkerView::set_mark_type_text(std::string type_text)
 101 {
 102         mark_type_text = type_text ;
 103          MarkTypeChanged(mark_type_text, this) ; /* EMIT_SIGNAL */
 104 }
 105
 106 /**
 107  * Returns the marker Type of this this MarkerItem, eg fade_out, pan up etc.
 108  *
 109  * @return the marker type text of this item
 110  */
 111 std::string
 112 MarkerView::get_mark_type_text() const
 113 {
 114         return(mark_type_text) ;
 115 }
 116
 117
 118 //---------------------------------------------------------------------------------------//
 119 // Marked Item Methods
 120
 121 ImageFrameView*
 122 MarkerView::set_marked_item(ImageFrameView* item)
 123 {
 124         ImageFrameView* temp = marked_item ;
 125         marked_item = item ;
 126
 127          MarkedItemChanged(marked_item, this) ; /* EMIT_SIGNAL */
 128         return(temp) ;
 129 }
 130
 131 ImageFrameView*
 132 MarkerView::get_marked_item()
 133 {
 134         return(marked_item) ;
 135 }