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         uint32_t count_of_our_type_min_1 (ARDOUR::ChanCount) const;
 130
 131         PortMatrixNode::State get_association (PortMatrixNode) const;
 132
 133         /** @param c Channels; where c[0] is from _ports[0] and c[1] is from _ports[1].
 134          *  @param s New state.
 135          */
 136         virtual void set_state (ARDOUR::BundleChannel c[2], bool s) = 0;
 137
 138         /** @param c Channels; where c[0] is from _ports[0] and c[1] is from _ports[1].
 139          *  @return state
 140          */
 141         virtual PortMatrixNode::State get_state (ARDOUR::BundleChannel c[2]) const = 0;
 142         virtual bool list_is_global (int) const = 0;
 143
 144         virtual bool can_add_channel (boost::shared_ptr<ARDOUR::Bundle>) const;
 145         virtual void add_channel (boost::shared_ptr<ARDOUR::Bundle>, ARDOUR::DataType);
 146         virtual bool can_remove_channels (boost::shared_ptr<ARDOUR::Bundle>) const;
 147         virtual void remove_channel (ARDOUR::BundleChannel);
 148         virtual void remove_all_channels (boost::weak_ptr<ARDOUR::Bundle>);
 149         virtual bool can_rename_channels (boost::shared_ptr<ARDOUR::Bundle>) const {
 150                 return false;
 151         }
 152         virtual void rename_channel (ARDOUR::BundleChannel) {}
 153         virtual std::string disassociation_verb () const = 0;
 154         virtual std::string channel_noun () const;
 155
 156         enum Result {
 157                 Cancelled,
 158                 Accepted
 159         };
 160
 161         sigc::signal<void, Result> Finished;
 162
 163         static bool bundle_with_channels (boost::shared_ptr<ARDOUR::Bundle>);
 164
 165 protected:
 166
 167         /** We have two port group lists.  One will be presented on the rows of the matrix,
 168             the other on the columns.  The PortMatrix chooses the arrangement based on which has
 169             more ports in it.  Subclasses must fill these two lists with the port groups that they
 170             wish to present.  The PortMatrix will arrange its layout such that signal flow is vaguely
 171             from left to right as you go from list 0 to list 1.  Hence subclasses which deal with
 172             inputs and outputs should put outputs in list 0 and inputs in list 1. */
 173         PortGroupList _ports[2];
 174
 175 private:
 176
 177         void hscroll_changed ();
 178         void vscroll_changed ();
 179         void routes_changed ();
 180         void reconnect_to_routes ();
 181         void select_arrangement ();
 182         void add_channel_proxy (boost::weak_ptr<ARDOUR::Bundle>, ARDOUR::DataType);
 183         void remove_channel_proxy (boost::weak_ptr<ARDOUR::Bundle>, uint32_t);
 184         void rename_channel_proxy (boost::weak_ptr<ARDOUR::Bundle>, uint32_t);
 185         void disassociate_all_on_channel (boost::weak_ptr<ARDOUR::Bundle>, uint32_t, int);
 186         void disassociate_all_on_bundle (boost::weak_ptr<ARDOUR::Bundle>, int);
 187         void setup_global_ports ();
 188         void setup_global_ports_proxy ();
 189         void toggle_show_only_bundles ();
 190         bool on_scroll_event (GdkEventScroll *);
 191         boost::shared_ptr<ARDOUR::IO> io_from_bundle (boost::shared_ptr<ARDOUR::Bundle>) const;
 192         void setup_notebooks ();
 193         void remove_notebook_pages (Gtk::Notebook &);
 194         void notebook_page_selected (GtkNotebookPage *, guint);
 195         void route_processors_changed (ARDOUR::RouteProcessorChange);
 196         void body_dimensions_changed ();
 197         void session_going_away ();
 198         void add_remove_option (Gtk::Menu_Helpers::MenuList &, boost::weak_ptr<ARDOUR::Bundle>, int);
 199         void add_disassociate_option (Gtk::Menu_Helpers::MenuList &, boost::weak_ptr<ARDOUR::Bundle>, int, int);
 200         void port_connected_or_disconnected ();
 201
 202         Gtk::Window* _parent;
 203
 204         /// port type that we are working with, or NIL if we are working with all of them
 205         ARDOUR::DataType _type;
 206         PBD::ScopedConnectionList _route_connections;
 207         PBD::ScopedConnectionList _changed_connections;
 208         PBD::ScopedConnectionList _bundle_changed_connections;
 209
 210         PortMatrixBody* _body;
 211         Gtk::HScrollbar _hscroll;
 212         Gtk::VScrollbar _vscroll;
 213         Gtk::Notebook _vnotebook;
 214         Gtk::Notebook _hnotebook;
 215         Gtk::Label _vlabel;
 216         Gtk::Label _hlabel;
 217         Gtk::VBox _vbox;
 218         Gtk::HBox _hbox;
 219         Gtk::Label _hspacer;
 220         Gtk::Label _vspacer;
 221         Gtk::Menu* _menu;
 222         Arrangement _arrangement;
 223         int _row_index;
 224         int _column_index;
 225         int _min_height_divisor;
 226         bool _show_only_bundles;
 227         bool _inhibit_toggle_show_only_bundles;
 228         bool _ignore_notebook_page_selected;
 229 };
 230
 231 #endif