2 Copyright (C) 2002-2009 Paul Davis
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.
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.
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.
20 #include "port_matrix_component.h"
21 #include "port_matrix.h"
22 #include "port_matrix_body.h"
27 * @param m Port matrix that we're in.
28 * @param b Port matrix body that we're in.
30 PortMatrixComponent::PortMatrixComponent (PortMatrix* m, PortMatrixBody* b)
34 _render_required (true),
35 _dimension_computation_required (true)
41 PortMatrixComponent::~PortMatrixComponent ()
44 g_object_unref (_pixmap);
49 PortMatrixComponent::setup ()
51 _dimension_computation_required = true;
52 _render_required = true;
56 PortMatrixComponent::get_pixmap (GdkDrawable *drawable)
58 if (_render_required) {
60 if (_dimension_computation_required) {
61 compute_dimensions ();
62 _dimension_computation_required = false;
63 _body->component_size_changed ();
66 /* we may be zero width or height; if so, just
67 use the smallest allowable pixmap */
75 /* make a pixmap of the right size */
77 g_object_unref (_pixmap);
79 _pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
82 cairo_t* cr = gdk_cairo_create (_pixmap);
86 _render_required = false;
93 PortMatrixComponent::set_source_rgb (cairo_t *cr, Gdk::Color const & c)
95 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
99 PortMatrixComponent::set_source_rgba (cairo_t *cr, Gdk::Color const & c, double a)
101 cairo_set_source_rgba (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p(), a);
104 pair<uint32_t, uint32_t>
105 PortMatrixComponent::dimensions ()
107 if (_dimension_computation_required) {
108 compute_dimensions ();
109 _dimension_computation_required = false;
110 _body->component_size_changed ();
113 return make_pair (_width, _height);
117 PortMatrixComponent::background_colour ()
119 return _matrix->get_style()->get_bg (Gtk::STATE_NORMAL);
123 * @return Visible size of the group in grid units, taking visibility and show_only_bundles into account.
126 PortMatrixComponent::group_size (boost::shared_ptr<const PortGroup> g) const
130 PortGroup::BundleList const & bundles = g->bundles ();
131 if (_matrix->show_only_bundles()) {
134 for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
135 s += _matrix->count_of_our_type_min_1 ((*i)->bundle->nchannels());
142 /** @param bc Channel.
143 * @param group Group.
144 * @return Position of bc in groups in grid units, taking show_only_bundles into account.
147 PortMatrixComponent::channel_to_position (ARDOUR::BundleChannel bc, boost::shared_ptr<const PortGroup> group) const
151 PortGroup::BundleList const & bundles = group->bundles ();
153 for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
155 if ((*i)->bundle == bc.bundle) {
157 /* found the bundle */
159 if (_matrix->show_only_bundles()) {
162 return p + bc.bundle->overall_channel_to_type (_matrix->type (), bc.channel);
167 /* move past this bundle */
169 if (_matrix->show_only_bundles()) {
172 p += _matrix->count_of_our_type_min_1 ((*i)->bundle->nchannels());
180 ARDOUR::BundleChannel
181 PortMatrixComponent::position_to_channel (double p, double, boost::shared_ptr<const PortGroup> group) const
183 p /= grid_spacing ();
185 PortGroup::BundleList const & bundles = group->bundles ();
186 for (PortGroup::BundleList::const_iterator j = bundles.begin(); j != bundles.end(); ++j) {
188 if (_matrix->show_only_bundles()) {
191 return ARDOUR::BundleChannel ((*j)->bundle, -1);
198 ARDOUR::ChanCount const N = (*j)->bundle->nchannels ();
200 uint32_t const s = _matrix->count_of_our_type_min_1 (N);
202 if (p < _matrix->count_of_our_type (N)) {
203 return ARDOUR::BundleChannel ((*j)->bundle, (*j)->bundle->type_channel_to_overall (_matrix->type (), p));
205 return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), -1);
215 return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), -1);