gtk2_ardour/editor_group_tabs.cc

   1 /*
   2     Copyright (C) 2009 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 "ardour/route_group.h"
  21 #include "editor_group_tabs.h"
  22 #include "editor.h"
  23 #include "route_time_axis.h"
  24 #include "utils.h"
  25 #include "editor_route_groups.h"
  26
  27 using namespace std;
  28 using namespace ARDOUR;
  29
  30 EditorGroupTabs::EditorGroupTabs (Editor* e)
  31         : GroupTabs (e)
  32 {
  33
  34 }
  35
  36 list<GroupTabs::Tab>
  37 EditorGroupTabs::compute_tabs () const
  38 {
  39         list<Tab> tabs;
  40
  41         Tab tab;
  42         tab.from = 0;
  43         tab.group = 0;
  44
  45         int32_t y = 0;
  46         for (Editor::TrackViewList::iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
  47
  48                 if ((*i)->marked_for_display() == false) {
  49                         continue;
  50                 }
  51
  52                 RouteGroup* g = (*i)->route_group ();
  53
  54                 if (g != tab.group) {
  55                         if (tab.group) {
  56                                 tab.to = y;
  57                                 tab.last_ui_size = (*i)->effective_height ();
  58                                 tabs.push_back (tab);
  59                         }
  60
  61                         tab.from = y;
  62                         tab.group = g;
  63                         tab.colour = (*i)->color ();
  64                         tab.first_ui_size = (*i)->effective_height ();
  65                 }
  66
  67                 y += (*i)->effective_height ();
  68         }
  69
  70         if (tab.group) {
  71                 tab.to = y;
  72                 tabs.push_back (tab);
  73         }
  74
  75         return tabs;
  76 }
  77
  78 void
  79 EditorGroupTabs::draw_tab (cairo_t* cr, Tab const & tab) const
  80 {
  81         double const arc_radius = _width;
  82
  83         if (tab.group->is_active()) {
  84                 cairo_set_source_rgba (cr, tab.colour.get_red_p (), tab.colour.get_green_p (), tab.colour.get_blue_p (), 1);
  85         } else {
  86                 cairo_set_source_rgba (cr, 1, 1, 1, 0.2);
  87         }
  88
  89         cairo_move_to (cr, 0, tab.from + arc_radius);
  90         cairo_arc (cr, _width, tab.from + arc_radius, arc_radius, M_PI, 3 * M_PI / 2);
  91         cairo_line_to (cr, _width, tab.to);
  92         cairo_arc (cr, _width, tab.to - arc_radius, arc_radius, M_PI / 2, M_PI);
  93         cairo_line_to (cr, 0, tab.from + arc_radius);
  94         cairo_fill (cr);
  95
  96         pair<string, double> const f = fit_to_pixels (cr, tab.group->name(), tab.to - tab.from - arc_radius * 2);
  97
  98         cairo_text_extents_t ext;
  99         cairo_text_extents (cr, tab.group->name().c_str(), &ext);
 100
 101         cairo_set_source_rgb (cr, 1, 1, 1);
 102         cairo_move_to (cr, _width - ext.height / 2, tab.from + (f.second + tab.to - tab.from) / 2);
 103         cairo_save (cr);
 104         cairo_rotate (cr, - M_PI / 2);
 105         cairo_show_text (cr, f.first.c_str());
 106         cairo_restore (cr);
 107 }
 108
 109 double
 110 EditorGroupTabs::primary_coordinate (double, double y) const
 111 {
 112         return y;
 113 }
 114
 115 void
 116 EditorGroupTabs::reflect_tabs (list<Tab> const & tabs)
 117 {
 118         list<Tab>::const_iterator j = tabs.begin ();
 119
 120         int32_t y = 0;
 121         for (Editor::TrackViewList::iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
 122
 123                 if ((*i)->marked_for_display() == false) {
 124                         continue;
 125                 }
 126
 127                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 128                 if (rtv) {
 129
 130                         if (j == tabs.end()) {
 131
 132                                 /* already run out of tabs, so no edit group */
 133                                 rtv->route()->set_route_group (0, this);
 134
 135                         } else {
 136
 137                                 if (y >= j->to) {
 138                                         /* this tab finishes before this track starts, so onto the next tab */
 139                                         ++j;
 140                                 }
 141
 142                                 double const h = y + (*i)->effective_height() / 2;
 143
 144                                 if (j->from < h && j->to > h) {
 145                                         rtv->route()->set_route_group (j->group, this);
 146                                 } else {
 147                                         rtv->route()->set_route_group (0, this);
 148                                 }
 149
 150                         }
 151                 }
 152
 153                 y += (*i)->effective_height ();
 154         }
 155 }
 156
 157
 158 Gtk::Menu*
 159 EditorGroupTabs::get_menu (RouteGroup *g)
 160 {
 161         return _editor->_route_groups->menu (g);
 162 }