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Copyright (C) 2002-2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#include "port_matrix_component.h"
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#include "port_matrix.h"
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#include "port_matrix_body.h"
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* @param m Port matrix that we're in.
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* @param b Port matrix body that we're in.
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PortMatrixComponent::PortMatrixComponent (PortMatrix* m, PortMatrixBody* b)
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_render_required (true),
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_dimension_computation_required (true)
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PortMatrixComponent::~PortMatrixComponent ()
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g_object_unref (_pixmap);
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PortMatrixComponent::setup ()
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_dimension_computation_required = true;
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_render_required = true;
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PortMatrixComponent::get_pixmap (GdkDrawable *drawable)
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if (_render_required) {
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if (_dimension_computation_required) {
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compute_dimensions ();
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_dimension_computation_required = false;
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_body->component_size_changed ();
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/* we may be zero width or height; if so, just
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use the smallest allowable pixmap */
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/* make a pixmap of the right size */
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g_object_unref (_pixmap);
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_pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
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cairo_t* cr = gdk_cairo_create (_pixmap);
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_render_required = false;
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PortMatrixComponent::set_source_rgb (cairo_t *cr, Gdk::Color const & c)
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cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
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PortMatrixComponent::set_source_rgba (cairo_t *cr, Gdk::Color const & c, double a)
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cairo_set_source_rgba (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p(), a);
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pair<uint32_t, uint32_t>
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PortMatrixComponent::dimensions ()
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if (_dimension_computation_required) {
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compute_dimensions ();
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_dimension_computation_required = false;
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_body->component_size_changed ();
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return make_pair (_width, _height);
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PortMatrixComponent::background_colour ()
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return _matrix->get_style()->get_bg (Gtk::STATE_NORMAL);
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* @return Visible size of the group in grid units, taking visibility and show_only_bundles into account.
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PortMatrixComponent::group_size (boost::shared_ptr<const PortGroup> g) const
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PortGroup::BundleList const & bundles = g->bundles ();
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if (_matrix->show_only_bundles()) {
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for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
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s += _matrix->count_of_our_type_min_1 ((*i)->bundle->nchannels());
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/** @param bc Channel.
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* @param group Group.
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* @return Position of bc in groups in grid units, taking show_only_bundles into account.
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PortMatrixComponent::channel_to_position (ARDOUR::BundleChannel bc, boost::shared_ptr<const PortGroup> group) const
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PortGroup::BundleList const & bundles = group->bundles ();
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for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
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if ((*i)->bundle == bc.bundle) {
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/* found the bundle */
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if (_matrix->show_only_bundles()) {
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return p + bc.bundle->overall_channel_to_type (_matrix->type (), bc.channel);
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/* move past this bundle */
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if (_matrix->show_only_bundles()) {
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p += _matrix->count_of_our_type_min_1 ((*i)->bundle->nchannels());
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ARDOUR::BundleChannel
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PortMatrixComponent::position_to_channel (double p, double, boost::shared_ptr<const PortGroup> group) const
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p /= grid_spacing ();
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PortGroup::BundleList const & bundles = group->bundles ();
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for (PortGroup::BundleList::const_iterator j = bundles.begin(); j != bundles.end(); ++j) {
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if (_matrix->show_only_bundles()) {
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return ARDOUR::BundleChannel ((*j)->bundle, -1);
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ARDOUR::ChanCount const N = (*j)->bundle->nchannels ();
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uint32_t const s = _matrix->count_of_our_type_min_1 (N);
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if (p < _matrix->count_of_our_type (N)) {
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return ARDOUR::BundleChannel ((*j)->bundle, (*j)->bundle->type_channel_to_overall (_matrix->type (), p));
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return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), -1);
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return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), -1);