#include "port_matrix.h"
#include "port_matrix_body.h"
+using namespace std;
+
PortMatrixGrid::PortMatrixGrid (PortMatrix* m, PortMatrixBody* b)
- : PortMatrixComponent (m, b)
+ : PortMatrixComponent (m, b),
+ _dragging (false),
+ _drag_valid (false),
+ _moved (false)
{
}
PortMatrixGrid::compute_dimensions ()
{
_width = 0;
- ARDOUR::BundleList const c = _matrix->columns()->bundles();
- if (_matrix->show_only_bundles()) {
- _width = c.size() * column_width();
- } else {
- for (ARDOUR::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
- _width += (*i)->nchannels() * column_width();
- }
+
+ for (PortGroupList::List::const_iterator i = _matrix->columns()->begin(); i != _matrix->columns()->end(); ++i) {
+ _width += group_size (*i) * grid_spacing ();
}
_height = 0;
- ARDOUR::BundleList const r = _matrix->rows()->bundles();
- if (_matrix->show_only_bundles()) {
- _height = r.size() * column_width();
- } else {
- for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
- _height += (*i)->nchannels() * row_height();
- }
+ for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
+ _height += group_size (*i) * grid_spacing ();
}
}
void
PortMatrixGrid::render (cairo_t* cr)
{
- /* BACKGROUND */
-
set_source_rgb (cr, background_colour());
cairo_rectangle (cr, 0, 0, _width, _height);
cairo_fill (cr);
+ uint32_t x = 0;
+ for (PortGroupList::List::const_iterator c = _matrix->columns()->begin(); c != _matrix->columns()->end(); ++c) {
+
+ uint32_t y = 0;
+ for (PortGroupList::List::const_iterator r = _matrix->rows()->begin(); r != _matrix->rows()->end(); ++r) {
+
+ if ((*c)->visible() && (*r)->visible()) {
+ render_group_pair (cr, *r, *c, x, y);
+ }
+
+ y += group_size (*r) * grid_spacing ();
+ }
+
+ x += group_size (*c) * grid_spacing ();
+ }
+}
+
+void
+PortMatrixGrid::render_group_pair (cairo_t* cr, boost::shared_ptr<const PortGroup> row, boost::shared_ptr<const PortGroup> column, uint32_t const x, uint32_t const y)
+{
+ PortGroup::BundleList const & row_bundles = row->bundles();
+ PortGroup::BundleList const & column_bundles = column->bundles();
+
+ /* unfortunately we need to compute the height of the row group here */
+ uint32_t height = group_size (row) * grid_spacing ();
+
+ uint32_t tx = x;
+
/* VERTICAL GRID LINES */
set_source_rgb (cr, grid_colour());
- uint32_t x = 0;
- ARDOUR::BundleList const c = _matrix->columns()->bundles();
- for (ARDOUR::BundleList::size_type i = 0; i < c.size(); ++i) {
+ uint32_t N = 0;
+
+ for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
+ cairo_set_line_width (cr, thick_grid_line_width());
+ cairo_move_to (cr, tx, y);
+ cairo_line_to (cr, tx, y + height);
+ cairo_stroke (cr);
+
if (!_matrix->show_only_bundles()) {
cairo_set_line_width (cr, thin_grid_line_width());
- for (uint32_t j = 1; j < c[i]->nchannels(); ++j) {
- x += column_width();
- cairo_move_to (cr, x, 0);
- cairo_line_to (cr, x, _height);
+ for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
+ tx += grid_spacing ();
+ cairo_move_to (cr, tx, y);
+ cairo_line_to (cr, tx, y + height);
cairo_stroke (cr);
}
+
+ } else {
+
+ tx += grid_spacing ();
+
}
-
- if (i < (c.size() - 1)) {
- x += column_width();
- cairo_set_line_width (cr, thick_grid_line_width());
- cairo_move_to (cr, x, 0);
- cairo_line_to (cr, x, _height);
- cairo_stroke (cr);
- }
- }
- uint32_t grid_width = x + column_width();
+ ++N;
+ }
+
+ uint32_t const width = tx - x;
+ uint32_t ty = y;
+
/* HORIZONTAL GRID LINES */
- uint32_t y = 0;
- ARDOUR::BundleList const r = _matrix->rows()->bundles();
- for (ARDOUR::BundleList::size_type i = 0; i < r.size(); ++i) {
-
+ N = 0;
+ for (PortGroup::BundleList::const_iterator i = row_bundles.begin(); i != row_bundles.end(); ++i) {
+
+ cairo_set_line_width (cr, thick_grid_line_width());
+ cairo_move_to (cr, x, ty);
+ cairo_line_to (cr, x + width, ty);
+ cairo_stroke (cr);
+
if (!_matrix->show_only_bundles()) {
cairo_set_line_width (cr, thin_grid_line_width());
- for (uint32_t j = 1; j < r[i]->nchannels(); ++j) {
- y += row_height();
- cairo_move_to (cr, 0, y);
- cairo_line_to (cr, grid_width, y);
+ for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
+ ty += grid_spacing ();
+ cairo_move_to (cr, x, ty);
+ cairo_line_to (cr, x + width, ty);
cairo_stroke (cr);
}
- }
- if (i < (r.size() - 1)) {
- y += row_height();
- cairo_set_line_width (cr, thick_grid_line_width());
- cairo_move_to (cr, 0, y);
- cairo_line_to (cr, grid_width, y);
- cairo_stroke (cr);
+ } else {
+
+ ty += grid_spacing ();
+
}
+
+ ++N;
}
-
- /* ASSOCIATION INDICATORS */
- uint32_t bx = 0;
- uint32_t by = 0;
+ /* ASSOCIATION INDICATORS */
+
+ uint32_t bx = x;
+ uint32_t by = y;
if (_matrix->show_only_bundles()) {
- for (ARDOUR::BundleList::const_iterator i = c.begin(); i < c.end(); ++i) {
- by = 0;
+ for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
+ by = y;
- for (ARDOUR::BundleList::const_iterator j = r.begin(); j < r.end(); ++j) {
-
- PortMatrixNode::State s = bundle_to_bundle_state (*i, *j);
+ for (PortGroup::BundleList::const_iterator j = row_bundles.begin(); j != row_bundles.end(); ++j) {
+
+ PortMatrixNode::State s = get_association (PortMatrixNode (
+ ARDOUR::BundleChannel (i->bundle, 0),
+ ARDOUR::BundleChannel (j->bundle, 0)
+ ));
switch (s) {
case PortMatrixNode::UNKNOWN:
draw_unknown_indicator (cr, bx, by);
break;
}
- by += row_height();
+ by += grid_spacing();
}
- bx += column_width();
+ bx += grid_spacing();
+
}
} else {
- for (ARDOUR::BundleList::const_iterator i = c.begin(); i < c.end(); ++i) {
- by = 0;
+ for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
+ by = y;
- for (ARDOUR::BundleList::const_iterator j = r.begin(); j < r.end(); ++j) {
+ for (PortGroup::BundleList::const_iterator j = row_bundles.begin(); j != row_bundles.end(); ++j) {
- x = bx;
- for (uint32_t k = 0; k < (*i)->nchannels (); ++k) {
+ tx = bx;
+ for (uint32_t k = 0; k < i->bundle->nchannels (); ++k) {
- y = by;
- for (uint32_t l = 0; l < (*j)->nchannels (); ++l) {
+ ty = by;
+ for (uint32_t l = 0; l < j->bundle->nchannels (); ++l) {
ARDOUR::BundleChannel c[2];
- c[_matrix->column_index()] = ARDOUR::BundleChannel (*i, k);
- c[_matrix->row_index()] = ARDOUR::BundleChannel (*j, l);
+ c[_matrix->column_index()] = ARDOUR::BundleChannel (i->bundle, k);
+ c[_matrix->row_index()] = ARDOUR::BundleChannel (j->bundle, l);
PortMatrixNode::State const s = _matrix->get_state (c);
switch (s) {
case PortMatrixNode::ASSOCIATED:
- draw_association_indicator (cr, x, y);
+ draw_association_indicator (cr, tx, ty);
break;
case PortMatrixNode::UNKNOWN:
- draw_unknown_indicator (cr, x, y);
+ draw_unknown_indicator (cr, tx, ty);
break;
case PortMatrixNode::NOT_ASSOCIATED:
break;
-
+
default:
break;
}
- y += row_height();
+ ty += grid_spacing();
}
- x += column_width();
+ tx += grid_spacing();
}
- by += (*j)->nchannels () * row_height();
+ by += j->bundle->nchannels () * grid_spacing();
}
- bx += (*i)->nchannels () * column_width();
+ bx += i->bundle->nchannels () * grid_spacing();
}
}
}
PortMatrixGrid::draw_association_indicator (cairo_t* cr, uint32_t x, uint32_t y, double p)
{
set_source_rgba (cr, association_colour(), 0.5);
+
cairo_arc (
cr,
- x + column_width() / 2,
- y + column_width() / 2,
- (column_width() - (2 * connection_indicator_pad())) / 2,
+ x + grid_spacing() / 2,
+ y + grid_spacing() / 2,
+ (grid_spacing() - (2 * connection_indicator_pad())) / 2,
0,
p * 2 * M_PI
);
cairo_fill (cr);
}
+void
+PortMatrixGrid::draw_empty_square (cairo_t* cr, uint32_t x, uint32_t y)
+{
+ set_source_rgb (cr, background_colour());
+ cairo_rectangle (
+ cr,
+ x + thick_grid_line_width(),
+ y + thick_grid_line_width(),
+ grid_spacing() - 2 * thick_grid_line_width(),
+ grid_spacing() - 2 * thick_grid_line_width()
+ );
+ cairo_fill (cr);
+}
+
void
PortMatrixGrid::draw_unknown_indicator (cairo_t* cr, uint32_t x, uint32_t y)
{
cr,
x + thick_grid_line_width(),
y + thick_grid_line_width(),
- column_width() - 2 * thick_grid_line_width(),
- row_height() - 2 * thick_grid_line_width()
+ grid_spacing() - 2 * thick_grid_line_width(),
+ grid_spacing() - 2 * thick_grid_line_width()
);
cairo_fill (cr);
}
PortMatrixNode
-PortMatrixGrid::position_to_node (double x, double y) const
+PortMatrixGrid::position_to_node (uint32_t x, uint32_t y) const
{
return PortMatrixNode (
- position_to_channel (y, _matrix->rows()->bundles(), row_height()),
- position_to_channel (x, _matrix->columns()->bundles(), column_width())
+ position_to_group_and_channel (y, _matrix->rows()).second,
+ position_to_group_and_channel (x, _matrix->columns()).second
);
}
-
-ARDOUR::BundleChannel
-PortMatrixGrid::position_to_channel (double p, ARDOUR::BundleList const& bundles, double inc) const
+void
+PortMatrixGrid::button_press (double x, double y, int b, uint32_t t)
{
- uint32_t pos = p / inc;
+ pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> px = position_to_group_and_channel (x / grid_spacing(), _matrix->columns());
+ pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> py = position_to_group_and_channel (y / grid_spacing(), _matrix->rows());
+
+ if (b == 1) {
- if (_matrix->show_only_bundles()) {
+ _dragging = true;
+ _drag_valid = (px.second.bundle && py.second.bundle);
- for (ARDOUR::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
- if (pos == 0) {
- return ARDOUR::BundleChannel (*i, 0);
- } else {
- pos--;
- }
- }
+ _moved = false;
+ _drag_start_x = x / grid_spacing ();
+ _drag_start_y = y / grid_spacing ();
- } else {
+ } else if (b == 3) {
- for (ARDOUR::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
- if (pos < (*i)->nchannels()) {
- return ARDOUR::BundleChannel (*i, pos);
- } else {
- pos -= (*i)->nchannels();
- }
- }
+ _matrix->popup_menu (px, py, t);
}
-
- return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), 0);
}
-
-double
-PortMatrixGrid::channel_position (
- ARDOUR::BundleChannel bc,
- ARDOUR::BundleList const& bundles,
- double inc) const
+PortMatrixNode::State
+PortMatrixGrid::get_association (PortMatrixNode node) const
{
- double p = 0;
-
- ARDOUR::BundleList::const_iterator i = bundles.begin ();
- while (i != bundles.end() && *i != bc.bundle) {
+ if (_matrix->show_only_bundles()) {
- if (_matrix->show_only_bundles()) {
- p += inc;
- } else {
- p += inc * (*i)->nchannels();
+ bool have_unknown = false;
+ bool have_off_diagonal_association = false;
+ bool have_diagonal_association = false;
+ bool have_diagonal_not_association = false;
+
+ for (uint32_t i = 0; i < node.row.bundle->nchannels (); ++i) {
+
+ for (uint32_t j = 0; j < node.column.bundle->nchannels (); ++j) {
+
+ ARDOUR::BundleChannel c[2];
+ c[_matrix->column_index()] = ARDOUR::BundleChannel (node.row.bundle, i);
+ c[_matrix->row_index()] = ARDOUR::BundleChannel (node.column.bundle, j);
+
+ PortMatrixNode::State const s = _matrix->get_state (c);
+
+ switch (s) {
+ case PortMatrixNode::ASSOCIATED:
+ if (i == j) {
+ have_diagonal_association = true;
+ } else {
+ have_off_diagonal_association = true;
+ }
+ break;
+
+ case PortMatrixNode::UNKNOWN:
+ have_unknown = true;
+ break;
+
+ case PortMatrixNode::NOT_ASSOCIATED:
+ if (i == j) {
+ have_diagonal_not_association = true;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
}
- ++i;
- }
+ if (have_unknown) {
+ return PortMatrixNode::UNKNOWN;
+ } else if (have_diagonal_association && !have_off_diagonal_association && !have_diagonal_not_association) {
+ return PortMatrixNode::ASSOCIATED;
+ } else if (!have_diagonal_association && !have_off_diagonal_association) {
+ return PortMatrixNode::NOT_ASSOCIATED;
+ }
+
+ return PortMatrixNode::PARTIAL;
- if (i == bundles.end()) {
- return 0;
- }
+ } else {
- p += inc * bc.channel;
+ ARDOUR::BundleChannel c[2];
+ c[_matrix->column_index()] = node.column;
+ c[_matrix->row_index()] = node.row;
+ return _matrix->get_state (c);
- return p;
+ }
+
+ return PortMatrixNode::UNKNOWN;
}
void
-PortMatrixGrid::button_press (double x, double y, int b)
+PortMatrixGrid::set_association (PortMatrixNode node, bool s)
{
- PortMatrixNode const node = position_to_node (x, y);
-
if (_matrix->show_only_bundles()) {
-
- PortMatrixNode::State const s = bundle_to_bundle_state (node.column.bundle, node.row.bundle);
-
+
for (uint32_t i = 0; i < node.column.bundle->nchannels(); ++i) {
for (uint32_t j = 0; j < node.row.bundle->nchannels(); ++j) {
ARDOUR::BundleChannel c[2];
c[_matrix->column_index()] = ARDOUR::BundleChannel (node.column.bundle, i);
c[_matrix->row_index()] = ARDOUR::BundleChannel (node.row.bundle, j);
- if (s == PortMatrixNode::NOT_ASSOCIATED || s == PortMatrixNode::PARTIAL) {
- _matrix->set_state (c, i == j);
- } else {
- _matrix->set_state (c, false);
- }
+ _matrix->set_state (c, s && (i == j));
}
}
} else {
-
+
if (node.row.bundle && node.column.bundle) {
ARDOUR::BundleChannel c[2];
c[_matrix->row_index()] = node.row;
c[_matrix->column_index()] = node.column;
-
- PortMatrixNode::State const s = _matrix->get_state (c);
-
- if (s == PortMatrixNode::ASSOCIATED || s == PortMatrixNode::NOT_ASSOCIATED) {
-
- bool const n = !(s == PortMatrixNode::ASSOCIATED);
-
- ARDOUR::BundleChannel c[2];
- c[_matrix->row_index()] = node.row;
- c[_matrix->column_index()] = node.column;
+ _matrix->set_state (c, s);
+ }
+ }
+}
+
+void
+PortMatrixGrid::button_release (double x, double y, int b, uint32_t /*t*/)
+{
+ if (b == 1) {
+
+ if (_dragging && _moved) {
+
+ if (_drag_valid) {
+ list<PortMatrixNode> const p = nodes_on_line (_drag_start_x, _drag_start_y, _drag_x, _drag_y);
- _matrix->set_state (c, n);
+ if (!p.empty()) {
+ PortMatrixNode::State const s = get_association (p.front());
+ for (list<PortMatrixNode>::const_iterator i = p.begin(); i != p.end(); ++i) {
+ set_association (*i, toggle_state (s));
+ }
+ }
+ }
+
+ } else {
+
+ PortMatrixNode const n = position_to_node (x / grid_spacing(), y / grid_spacing());
+ if (n.row.bundle && n.column.bundle) {
+ PortMatrixNode::State const s = get_association (n);
+ set_association (n, toggle_state (s));
}
-
}
+
+ require_render ();
+ _body->queue_draw ();
}
- require_render ();
- _body->queue_draw ();
+ _dragging = false;
}
+
void
PortMatrixGrid::draw_extra (cairo_t* cr)
{
set_source_rgba (cr, mouseover_line_colour(), 0.3);
cairo_set_line_width (cr, mouseover_line_width());
- double const x = component_to_parent_x (
- channel_position (_body->mouseover().column, _matrix->columns()->bundles(), column_width()) + column_width() / 2
- );
-
- double const y = component_to_parent_y (
- channel_position (_body->mouseover().row, _matrix->rows()->bundles(), row_height()) + row_height() / 2
- );
-
- if (_body->mouseover().row.bundle) {
+ double const x = component_to_parent_x (channel_to_position (_body->mouseover().column, _matrix->columns()) * grid_spacing()) + grid_spacing() / 2;
+ double const y = component_to_parent_y (channel_to_position (_body->mouseover().row, _matrix->rows()) * grid_spacing()) + grid_spacing() / 2;
+
+ if (_body->mouseover().row.bundle && _body->mouseover().column.bundle) {
cairo_move_to (cr, x, y);
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
cairo_line_to (cr, _parent_rectangle.get_x() + _parent_rectangle.get_width(), y);
}
cairo_stroke (cr);
- }
-
- if (_body->mouseover().column.bundle) {
cairo_move_to (cr, x, y);
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
}
cairo_stroke (cr);
}
+
+ if (_dragging && _drag_valid && _moved) {
+
+ list<PortMatrixNode> const p = nodes_on_line (_drag_start_x, _drag_start_y, _drag_x, _drag_y);
+
+ if (!p.empty()) {
+
+ bool const s = toggle_state (get_association (p.front()));
+
+ for (list<PortMatrixNode>::const_iterator i = p.begin(); i != p.end(); ++i) {
+ if (s) {
+ draw_association_indicator (
+ cr,
+ component_to_parent_x (channel_to_position (i->column, _matrix->columns()) * grid_spacing ()),
+ component_to_parent_y (channel_to_position (i->row, _matrix->rows()) * grid_spacing ())
+ );
+ } else {
+ draw_empty_square (
+ cr,
+ component_to_parent_x (channel_to_position (i->column, _matrix->columns()) * grid_spacing ()),
+ component_to_parent_y (channel_to_position (i->row, _matrix->rows()) * grid_spacing ())
+ );
+ }
+ }
+ }
+
+ set_source_rgba (cr, association_colour (), 0.3);
+
+ cairo_move_to (
+ cr,
+ component_to_parent_x (_drag_start_x * grid_spacing() + grid_spacing() / 2),
+ component_to_parent_y (_drag_start_y * grid_spacing() + grid_spacing() / 2)
+ );
+
+ cairo_line_to (
+ cr,
+ component_to_parent_x (_drag_x * grid_spacing() + grid_spacing() / 2),
+ component_to_parent_y (_drag_y * grid_spacing() + grid_spacing() / 2)
+ );
+
+ cairo_stroke (cr);
+
+ }
}
void
}
void
-PortMatrixGrid::mouseover_event (double x, double y)
+PortMatrixGrid::motion (double x, double y)
{
- _body->set_mouseover (position_to_node (x, y));
+ _body->set_mouseover (position_to_node (x / grid_spacing(), y / grid_spacing()));
+
+ int const px = x / grid_spacing ();
+ int const py = y / grid_spacing ();
+
+ if (_dragging && !_moved && ( (px != _drag_start_x || py != _drag_start_x) )) {
+ _moved = true;
+ }
+
+ if (_dragging && _drag_valid && _moved) {
+ _drag_x = px;
+ _drag_y = py;
+ _body->queue_draw ();
+ }
}
void
{
if (n.row.bundle) {
- double const y = channel_position (n.row, _matrix->rows()->bundles(), row_height());
+ double const y = channel_to_position (n.row, _matrix->rows()) * grid_spacing ();
_body->queue_draw_area (
_parent_rectangle.get_x(),
component_to_parent_y (y),
_parent_rectangle.get_width(),
- row_height()
+ grid_spacing()
);
}
if (n.column.bundle) {
- double const x = channel_position (n.column, _matrix->columns()->bundles(), column_width());
+ double const x = channel_to_position (n.column, _matrix->columns()) * grid_spacing ();
_body->queue_draw_area (
component_to_parent_x (x),
_parent_rectangle.get_y(),
- column_width(),
+ grid_spacing(),
_parent_rectangle.get_height()
);
}
return y + _body->yoffset() - _parent_rectangle.get_y();
}
-PortMatrixNode::State
-PortMatrixGrid::bundle_to_bundle_state (boost::shared_ptr<ARDOUR::Bundle> a, boost::shared_ptr<ARDOUR::Bundle> b) const
+list<PortMatrixNode>
+PortMatrixGrid::nodes_on_line (int x0, int y0, int x1, int y1) const
{
- bool have_unknown = false;
- bool have_off_diagonal_association = false;
- bool have_diagonal_association = false;
- bool have_diagonal_not_association = false;
-
- for (uint32_t i = 0; i < a->nchannels (); ++i) {
-
- for (uint32_t j = 0; j < b->nchannels (); ++j) {
-
- ARDOUR::BundleChannel c[2];
- c[_matrix->column_index()] = ARDOUR::BundleChannel (a, i);
- c[_matrix->row_index()] = ARDOUR::BundleChannel (b, j);
-
- PortMatrixNode::State const s = _matrix->get_state (c);
+ list<PortMatrixNode> p;
- switch (s) {
- case PortMatrixNode::ASSOCIATED:
- if (i == j) {
- have_diagonal_association = true;
- } else {
- have_off_diagonal_association = true;
- }
- break;
-
- case PortMatrixNode::UNKNOWN:
- have_unknown = true;
- break;
-
- case PortMatrixNode::NOT_ASSOCIATED:
- if (i == j) {
- have_diagonal_not_association = true;
- }
- break;
+ bool const steep = abs (y1 - y0) > abs (x1 - x0);
+ if (steep) {
+ int tmp = x0;
+ x0 = y0;
+ y0 = tmp;
- default:
- break;
- }
- }
+ tmp = y1;
+ y1 = x1;
+ x1 = tmp;
+ }
+
+ if (x0 > x1) {
+ int tmp = x0;
+ x0 = x1;
+ x1 = tmp;
+
+ tmp = y0;
+ y0 = y1;
+ y1 = tmp;
}
+
+ int dx = x1 - x0;
+ int dy = abs (y1 - y0);
- if (have_unknown) {
- return PortMatrixNode::UNKNOWN;
- } else if (have_diagonal_association && !have_off_diagonal_association && !have_diagonal_not_association) {
- return PortMatrixNode::ASSOCIATED;
- } else if (!have_diagonal_association && !have_off_diagonal_association) {
- return PortMatrixNode::NOT_ASSOCIATED;
+ double err = 0;
+ double derr = double (dy) / dx;
+
+ int y = y0;
+ int const ystep = y0 < y1 ? 1 : -1;
+
+ for (int x = x0; x <= x1; ++x) {
+ if (steep) {
+ PortMatrixNode n = position_to_node (y, x);
+ if (n.row.bundle && n.column.bundle) {
+ p.push_back (n);
+ }
+ } else {
+ PortMatrixNode n = position_to_node (x, y);
+ if (n.row.bundle && n.column.bundle) {
+ p.push_back (n);
+ }
+ }
+
+ err += derr;
+
+ if (err >= 0.5) {
+ y += ystep;
+ err -= 1;
+ }
}
- return PortMatrixNode::PARTIAL;
+ return p;
}
-
+bool
+PortMatrixGrid::toggle_state (PortMatrixNode::State s) const
+{
+ return (s == PortMatrixNode::NOT_ASSOCIATED || s == PortMatrixNode::PARTIAL);
+}