gtk2_ardour/port_matrix_row_labels.cc

   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 #include <iostream>
  21 #include <boost/weak_ptr.hpp>
  22 #include <gtkmm/menu.h>
  23 #include <gtkmm/menushell.h>
  24 #include <gtkmm/menu_elems.h>
  25 #include <cairo/cairo.h>
  26 #include "ardour/bundle.h"
  27 #include "port_matrix_row_labels.h"
  28 #include "port_matrix.h"
  29 #include "i18n.h"
  30
  31 PortMatrixRowLabels::PortMatrixRowLabels (PortMatrix* p, PortMatrixBody* b)
  32         : PortMatrixComponent (b), _port_matrix (p), _menu (0)
  33 {
  34
  35 }
  36
  37 PortMatrixRowLabels::~PortMatrixRowLabels ()
  38 {
  39         delete _menu;
  40 }
  41
  42 void
  43 PortMatrixRowLabels::compute_dimensions ()
  44 {
  45         GdkPixmap* pm = gdk_pixmap_new (NULL, 1, 1, 24);
  46         gdk_drawable_set_colormap (pm, gdk_colormap_get_system());
  47         cairo_t* cr = gdk_cairo_create (pm);
  48
  49         _longest_port_name = 0;
  50         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
  51                 for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
  52                         cairo_text_extents_t ext;
  53                         cairo_text_extents (cr, (*i)->channel_name(j).c_str(), &ext);
  54                         if (ext.width > _longest_port_name) {
  55                                 _longest_port_name = ext.width;
  56                         }
  57                 }
  58         }
  59
  60         _longest_bundle_name = 0;
  61         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
  62                 cairo_text_extents_t ext;
  63                 cairo_text_extents (cr, (*i)->name().c_str(), &ext);
  64                 if (ext.width > _longest_bundle_name) {
  65                         _longest_bundle_name = ext.width;
  66                 }
  67         }
  68
  69         cairo_destroy (cr);
  70         gdk_pixmap_unref (pm);
  71
  72         _height = 0;
  73         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
  74                 _height += (*i)->nchannels() * row_height();
  75         }
  76
  77         _width = _longest_port_name +
  78                 name_pad() * 4 +
  79                 _longest_bundle_name + name_pad() * 2;
  80 }
  81
  82
  83 void
  84 PortMatrixRowLabels::render (cairo_t* cr)
  85 {
  86         /* BACKGROUND */
  87
  88         set_source_rgb (cr, background_colour());
  89         cairo_rectangle (cr, 0, 0, _width, _height);
  90         cairo_fill (cr);
  91
  92         /* SIDE BUNDLE NAMES */
  93
  94         uint32_t x = _longest_port_name + name_pad() * 3;
  95
  96         uint32_t y = 0;
  97         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
  98
  99                 Gdk::Color const colour = get_a_bundle_colour (i - _body->row_bundles().begin ());
 100                 set_source_rgb (cr, colour);
 101                 cairo_rectangle (
 102                         cr,
 103                         0,
 104                         y,
 105                         _longest_port_name + name_pad() * 4 + _longest_bundle_name + name_pad() * 2,
 106                         row_height() * (*i)->nchannels()
 107                         );
 108                 cairo_fill_preserve (cr);
 109                 set_source_rgb (cr, background_colour());
 110                 cairo_set_line_width (cr, label_border_width ());
 111                 cairo_stroke (cr);
 112
 113                 uint32_t off = 0;
 114                 if ((*i)->nchannels () > 0) {
 115                         /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
 116                         cairo_text_extents_t ext;
 117                         cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
 118                         off = (row_height() - ext.height) / 2;
 119                 } else {
 120                         off = row_height() / 2;
 121                 }
 122
 123                 set_source_rgb (cr, text_colour());
 124                 cairo_move_to (cr, x, y + name_pad() + off);
 125                 cairo_show_text (cr, (*i)->name().c_str());
 126
 127                 y += row_height() * (*i)->nchannels ();
 128         }
 129
 130
 131         /* SIDE PORT NAMES */
 132
 133         y = 0;
 134         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
 135                 for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
 136
 137                         Gdk::Color const colour = get_a_bundle_colour (i - _body->row_bundles().begin ());
 138                         set_source_rgb (cr, colour);
 139                         cairo_rectangle (
 140                                 cr,
 141                                 0,
 142                                 y,
 143                                 _longest_port_name + (name_pad() * 2),
 144                                 row_height()
 145                                 );
 146                         cairo_fill_preserve (cr);
 147                         set_source_rgb (cr, background_colour());
 148                         cairo_set_line_width (cr, label_border_width ());
 149                         cairo_stroke (cr);
 150
 151                         cairo_text_extents_t ext;
 152                         cairo_text_extents (cr, (*i)->channel_name(j).c_str(), &ext);
 153                         uint32_t const off = (row_height() - ext.height) / 2;
 154
 155                         set_source_rgb (cr, text_colour());
 156                         cairo_move_to (cr, name_pad(), y + name_pad() + off);
 157                         cairo_show_text (cr, (*i)->channel_name(j).c_str());
 158
 159                         y += row_height();
 160                 }
 161         }
 162 }
 163
 164 void
 165 PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
 166 {
 167         if (b == 3 && x < (_longest_port_name + name_pad() * 2) ) {
 168
 169                 delete _menu;
 170
 171                 _menu = new Gtk::Menu;
 172                 _menu->set_name ("ArdourContextMenu");
 173
 174                 Gtk::Menu_Helpers::MenuList& items = _menu->items ();
 175
 176
 177                 uint32_t row = y / row_height ();
 178
 179                 boost::shared_ptr<ARDOUR::Bundle> bundle;
 180                 uint32_t channel;
 181
 182                 for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
 183                         if (row < (*i)->nchannels ()) {
 184                                 bundle = *i;
 185                                 channel = row;
 186                                 break;
 187                         } else {
 188                                 row -= (*i)->nchannels ();
 189                         }
 190                 }
 191
 192                 if (bundle) {
 193                         char buf [64];
 194
 195                         if (_port_matrix->can_rename_channels ()) {
 196                                 snprintf (buf, sizeof (buf), _("Rename '%s'..."), bundle->channel_name (channel).c_str());
 197                                 items.push_back (
 198                                         Gtk::Menu_Helpers::MenuElem (
 199                                                 buf,
 200                                                 sigc::bind (sigc::mem_fun (*this, &PortMatrixRowLabels::rename_channel_proxy), bundle, channel)
 201                                                 )
 202                                         );
 203                         }
 204
 205                         snprintf (buf, sizeof (buf), _("Remove '%s'"), bundle->channel_name (channel).c_str());
 206                         items.push_back (
 207                                 Gtk::Menu_Helpers::MenuElem (
 208                                         buf,
 209                                         sigc::bind (sigc::mem_fun (*this, &PortMatrixRowLabels::remove_channel_proxy), bundle, channel)
 210                                         )
 211                                 );
 212
 213                         _menu->popup (1, t);
 214                 }
 215         }
 216 }
 217
 218
 219 void
 220 PortMatrixRowLabels::remove_channel_proxy (boost::weak_ptr<ARDOUR::Bundle> b, uint32_t c)
 221 {
 222         boost::shared_ptr<ARDOUR::Bundle> sb = b.lock ();
 223         if (!sb) {
 224                 return;
 225         }
 226
 227         _port_matrix->remove_channel (sb, c);
 228
 229 }
 230
 231 void
 232 PortMatrixRowLabels::rename_channel_proxy (boost::weak_ptr<ARDOUR::Bundle> b, uint32_t c)
 233 {
 234         boost::shared_ptr<ARDOUR::Bundle> sb = b.lock ();
 235         if (!sb) {
 236                 return;
 237         }
 238
 239         _port_matrix->rename_channel (sb, c);
 240 }