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                        nframes_t start,
  56                        nframes_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         frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_start_handle_event), frame_handle_start, this));
  68         frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_end_handle_event), frame_handle_end, this));
  69         group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_markerview_item_view_event), group, this));
  70
  71         set_position(start, this) ;
  72         set_duration(duration, this) ;
  73 }
  74
  75 /**
  76  * Destructor
  77  * Destroys this Marker Item and removes the association between itself and the item it is marking.
  78  */
  79 MarkerView::~MarkerView()
  80 {
  81         // remove the association our marked may still have to us
  82         if(marked_item)
  83         {
  84                 marked_item->remove_marker_view_item(this, this) ;
  85         }
  86 }
  87
  88
  89 //---------------------------------------------------------------------------------------//
  90 // Marker Type Methods
  91
  92 /**
  93  * Sets the marker Type text of this this MarkerItem, eg fade_out, pan up etc.
  94  *
  95  * @param type_text the marker type text of this item
  96  */
  97 void
  98 MarkerView::set_mark_type_text(std::string type_text)
  99 {
 100         mark_type_text = type_text ;
 101          MarkTypeChanged(mark_type_text, this) ; /* EMIT_SIGNAL */
 102 }
 103
 104 /**
 105  * Returns the marker Type of this this MarkerItem, eg fade_out, pan up etc.
 106  *
 107  * @return the marker type text of this item
 108  */
 109 std::string
 110 MarkerView::get_mark_type_text() const
 111 {
 112         return(mark_type_text) ;
 113 }
 114
 115
 116 //---------------------------------------------------------------------------------------//
 117 // Marked Item Methods
 118
 119 ImageFrameView*
 120 MarkerView::set_marked_item(ImageFrameView* item)
 121 {
 122         ImageFrameView* temp = marked_item ;
 123         marked_item = item ;
 124
 125          MarkedItemChanged(marked_item, this) ; /* EMIT_SIGNAL */
 126         return(temp) ;
 127 }
 128
 129 ImageFrameView*
 130 MarkerView::get_marked_item()
 131 {
 132         return(marked_item) ;
 133 }