gtk2_ardour/port_matrix.h

   1 /*
   2     Copyright (C) 2002-2009 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 #ifndef __gtk_ardour_port_matrix_h__
  21 #define __gtk_ardour_port_matrix_h__
  22
  23 #include <list>
  24 #include <gtkmm/box.h>
  25 #include <gtkmm/scrollbar.h>
  26 #include <gtkmm/table.h>
  27 #include <gtkmm/label.h>
  28 #include <gtkmm/checkbutton.h>
  29 #include <gtkmm/notebook.h>
  30 #include <boost/shared_ptr.hpp>
  31
  32 #include "ardour/bundle.h"
  33 #include "ardour/types.h"
  34 #include "ardour/session_handle.h"
  35
  36 #include "port_group.h"
  37 #include "port_matrix_types.h"
  38
  39 /** The `port matrix' UI.  This is a widget which lets the user alter
  40  *  associations between one set of ports and another.  e.g. to connect
  41  *  things together.
  42  *
  43  *  It is made up of a body, PortMatrixBody, which is rendered using cairo,
  44  *  and some scrollbars and other stuff.  All of this is arranged inside the
  45  *  Table that we inherit from.
  46  */
  47
  48 namespace ARDOUR {
  49         class Bundle;
  50 }
  51
  52 namespace Gtk {
  53         namespace Menu_Helpers {
  54                 class MenuList;
  55         }
  56 }
  57
  58 class PortMatrixBody;
  59
  60 class PortMatrix : public Gtk::Table, public ARDOUR::SessionHandlePtr
  61 {
  62 public:
  63         PortMatrix (Gtk::Window*, ARDOUR::Session *, ARDOUR::DataType);
  64         ~PortMatrix ();
  65
  66         void set_type (ARDOUR::DataType);
  67
  68         ARDOUR::DataType type () const {
  69                 return _type;
  70         }
  71
  72         void disassociate_all ();
  73         void setup_scrollbars ();
  74         void popup_menu (ARDOUR::BundleChannel, ARDOUR::BundleChannel, uint32_t);
  75
  76         int min_height_divisor () const {
  77                 return _min_height_divisor;
  78         }
  79         void set_min_height_divisor (int f) {
  80                 _min_height_divisor = f;
  81         }
  82
  83         enum Arrangement {
  84                 TOP_TO_RIGHT,  ///< column labels on top, row labels to the right
  85                 LEFT_TO_BOTTOM ///< row labels to the left, column labels on the bottom
  86         };
  87
  88
  89         /** @return Arrangement in use */
  90         Arrangement arrangement () const {
  91                 return _arrangement;
  92         }
  93
  94         bool show_only_bundles () const {
  95                 return _show_only_bundles;
  96         }
  97
  98         PortGroupList const * columns () const;
  99         boost::shared_ptr<const PortGroup> visible_columns () const;
 100
 101         /** @return index into the _ports array for the list which is displayed as columns */
 102         int column_index () const {
 103                 return _column_index;
 104         }
 105
 106         PortGroupList const * rows () const;
 107         boost::shared_ptr<const PortGroup> visible_rows () const;
 108
 109         /** @return index into the _ports array for the list which is displayed as rows */
 110         int row_index () const {
 111                 return _row_index;
 112         }
 113
 114         PortGroupList const * ports (int d) const {
 115                 return &_ports[d];
 116         }
 117
 118         boost::shared_ptr<const PortGroup> visible_ports (int d) const;
 119
 120         void init ();
 121         void setup ();
 122         virtual void setup_ports (int) = 0;
 123         void setup_all_ports ();
 124
 125         std::pair<uint32_t, uint32_t> max_size () const;
 126
 127         bool should_show (ARDOUR::DataType) const;
 128         uint32_t count_of_our_type (ARDOUR::ChanCount) const;
 129
 130         PortMatrixNode::State get_association (PortMatrixNode) const;
 131
 132         /** @param c Channels; where c[0] is from _ports[0] and c[1] is from _ports[1].
 133          *  @param s New state.
 134          */
 135         virtual void set_state (ARDOUR::BundleChannel c[2], bool s) = 0;
 136
 137         /** @param c Channels; where c[0] is from _ports[0] and c[1] is from _ports[1].
 138          *  @return state
 139          */
 140         virtual PortMatrixNode::State get_state (ARDOUR::BundleChannel c[2]) const = 0;
 141         virtual bool list_is_global (int) const = 0;
 142
 143         virtual bool can_add_channel (boost::shared_ptr<ARDOUR::Bundle>) const;
 144         virtual void add_channel (boost::shared_ptr<ARDOUR::Bundle>, ARDOUR::DataType);
 145         virtual bool can_remove_channels (boost::shared_ptr<ARDOUR::Bundle>) const;
 146         virtual void remove_channel (ARDOUR::BundleChannel);
 147         virtual void remove_all_channels (boost::weak_ptr<ARDOUR::Bundle>);
 148         virtual bool can_rename_channels (boost::shared_ptr<ARDOUR::Bundle>) const {
 149                 return false;
 150         }
 151         virtual void rename_channel (ARDOUR::BundleChannel) {}
 152         virtual std::string disassociation_verb () const = 0;
 153         virtual std::string channel_noun () const;
 154
 155         enum Result {
 156                 Cancelled,
 157                 Accepted
 158         };
 159
 160         sigc::signal<void, Result> Finished;
 161
 162 protected:
 163
 164         /** We have two port group lists.  One will be presented on the rows of the matrix,
 165             the other on the columns.  The PortMatrix chooses the arrangement based on which has
 166             more ports in it.  Subclasses must fill these two lists with the port groups that they
 167             wish to present.  The PortMatrix will arrange its layout such that signal flow is vaguely
 168             from left to right as you go from list 0 to list 1.  Hence subclasses which deal with
 169             inputs and outputs should put outputs in list 0 and inputs in list 1. */
 170         PortGroupList _ports[2];
 171
 172 private:
 173
 174         void hscroll_changed ();
 175         void vscroll_changed ();
 176         void routes_changed ();
 177         void reconnect_to_routes ();
 178         void select_arrangement ();
 179         void add_channel_proxy (boost::weak_ptr<ARDOUR::Bundle>, ARDOUR::DataType);
 180         void remove_channel_proxy (boost::weak_ptr<ARDOUR::Bundle>, uint32_t);
 181         void rename_channel_proxy (boost::weak_ptr<ARDOUR::Bundle>, uint32_t);
 182         void disassociate_all_on_channel (boost::weak_ptr<ARDOUR::Bundle>, uint32_t, int);
 183         void disassociate_all_on_bundle (boost::weak_ptr<ARDOUR::Bundle>, int);
 184         void setup_global_ports ();
 185         void setup_global_ports_proxy ();
 186         void toggle_show_only_bundles ();
 187         bool on_scroll_event (GdkEventScroll *);
 188         boost::shared_ptr<ARDOUR::IO> io_from_bundle (boost::shared_ptr<ARDOUR::Bundle>) const;
 189         void setup_notebooks ();
 190         void remove_notebook_pages (Gtk::Notebook &);
 191         void notebook_page_selected (GtkNotebookPage *, guint);
 192         void route_processors_changed (ARDOUR::RouteProcessorChange);
 193         void body_dimensions_changed ();
 194         void session_going_away ();
 195         void add_remove_option (Gtk::Menu_Helpers::MenuList &, boost::weak_ptr<ARDOUR::Bundle>, int);
 196         void add_disassociate_option (Gtk::Menu_Helpers::MenuList &, boost::weak_ptr<ARDOUR::Bundle>, int, int);
 197         void port_connected_or_disconnected ();
 198
 199         Gtk::Window* _parent;
 200
 201         /// port type that we are working with, or NIL if we are working with all of them
 202         ARDOUR::DataType _type;
 203         PBD::ScopedConnectionList _route_connections;
 204         PBD::ScopedConnectionList _changed_connections;
 205         PBD::ScopedConnectionList _bundle_changed_connections;
 206
 207         PortMatrixBody* _body;
 208         Gtk::HScrollbar _hscroll;
 209         Gtk::VScrollbar _vscroll;
 210         Gtk::Notebook _vnotebook;
 211         Gtk::Notebook _hnotebook;
 212         Gtk::Label _vlabel;
 213         Gtk::Label _hlabel;
 214         Gtk::VBox _vbox;
 215         Gtk::HBox _hbox;
 216         Gtk::Label _hspacer;
 217         Gtk::Label _vspacer;
 218         Gtk::Menu* _menu;
 219         Arrangement _arrangement;
 220         int _row_index;
 221         int _column_index;
 222         int _min_height_divisor;
 223         bool _show_only_bundles;
 224         bool _inhibit_toggle_show_only_bundles;
 225         bool _ignore_notebook_page_selected;
 226 };
 227
 228 #endif