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livetrax/gtk2_ardour/port_matrix_grid.cc
David Robillard bb9cc45cd2 Strip trailing whitespace and fix other whitespace errors (e.g. space/tab mixing). Whitespace changes only. 
Vimmers, try let c_space_errors = 1 in your .vimrc to highlight this kind of stuff in red.  I don't know the emacs equivalent...


git-svn-id: svn://localhost/ardour2/branches/3.0@5773 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-10-14 16:10:01 +00:00

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/*
Copyright (C) 2002-2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <cairo/cairo.h>
#include "ardour/bundle.h"
#include "ardour/types.h"
#include "port_matrix_grid.h"
#include "port_matrix.h"
#include "port_matrix_body.h"
using namespace std;
PortMatrixGrid::PortMatrixGrid (PortMatrix* m, PortMatrixBody* b)
: PortMatrixComponent (m, b),
_dragging (false),
_drag_valid (false),
_moved (false)
{
}
void
PortMatrixGrid::compute_dimensions ()
{
_width = 0;
for (PortGroupList::List::const_iterator i = _matrix->columns()->begin(); i != _matrix->columns()->end(); ++i) {
_width += group_size (*i) * grid_spacing ();
}
_height = 0;
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)
{
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 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 = 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 ();
}
++N;
}
uint32_t const width = tx - x;
uint32_t ty = y;
/* HORIZONTAL GRID LINES */
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 = 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);
}
} else {
ty += grid_spacing ();
}
++N;
}
/* ASSOCIATION INDICATORS */
uint32_t bx = x;
uint32_t by = y;
if (_matrix->show_only_bundles()) {
for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
by = y;
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;
case PortMatrixNode::ASSOCIATED:
draw_association_indicator (cr, bx, by);
break;
case PortMatrixNode::PARTIAL:
draw_association_indicator (cr, bx, by, 0.5);
break;
default:
break;
}
by += grid_spacing();
}
bx += grid_spacing();
}
} else {
for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
by = y;
for (PortGroup::BundleList::const_iterator j = row_bundles.begin(); j != row_bundles.end(); ++j) {
tx = bx;
for (uint32_t k = 0; k < i->bundle->nchannels (); ++k) {
ty = by;
for (uint32_t l = 0; l < j->bundle->nchannels (); ++l) {
ARDOUR::BundleChannel c[2];
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, tx, ty);
break;
case PortMatrixNode::UNKNOWN:
draw_unknown_indicator (cr, tx, ty);
break;
case PortMatrixNode::NOT_ASSOCIATED:
break;
default:
break;
}
ty += grid_spacing();
}
tx += grid_spacing();
}
by += j->bundle->nchannels () * grid_spacing();
}
bx += i->bundle->nchannels () * grid_spacing();
}
}
}
void
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 + 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)
{
set_source_rgba (cr, unknown_colour(), 0.5);
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);
}
PortMatrixNode
PortMatrixGrid::position_to_node (uint32_t x, uint32_t y) const
{
return PortMatrixNode (
position_to_group_and_channel (y, _matrix->rows()).second,
position_to_group_and_channel (x, _matrix->columns()).second
);
}
void
PortMatrixGrid::button_press (double x, double y, int b, uint32_t t)
{
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) {
_dragging = true;
_drag_valid = (px.second.bundle && py.second.bundle);
_moved = false;
_drag_start_x = x / grid_spacing ();
_drag_start_y = y / grid_spacing ();
} else if (b == 3) {
_matrix->popup_menu (px, py, t);
}
}
PortMatrixNode::State
PortMatrixGrid::get_association (PortMatrixNode node) const
{
if (_matrix->show_only_bundles()) {
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;
}
}
}
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;
} else {
ARDOUR::BundleChannel c[2];
c[_matrix->column_index()] = node.column;
c[_matrix->row_index()] = node.row;
return _matrix->get_state (c);
}
return PortMatrixNode::UNKNOWN;
}
void
PortMatrixGrid::set_association (PortMatrixNode node, bool s)
{
if (_matrix->show_only_bundles()) {
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);
_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;
_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);
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 ();
}
_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_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, component_to_parent_x (0), y);
} else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
cairo_line_to (cr, _parent_rectangle.get_x() + _parent_rectangle.get_width(), y);
}
cairo_stroke (cr);
cairo_move_to (cr, x, y);
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
cairo_line_to (cr, x, _parent_rectangle.get_y() + _parent_rectangle.get_height());
} else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
cairo_line_to (cr, x, component_to_parent_y (0));
}
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
PortMatrixGrid::mouseover_changed (PortMatrixNode const& old)
{
queue_draw_for (old);
queue_draw_for (_body->mouseover());
}
void
PortMatrixGrid::motion (double x, double 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
PortMatrixGrid::queue_draw_for (PortMatrixNode const &n)
{
if (n.row.bundle) {
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(),
grid_spacing()
);
}
if (n.column.bundle) {
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(),
grid_spacing(),
_parent_rectangle.get_height()
);
}
}
double
PortMatrixGrid::component_to_parent_x (double x) const
{
return x - _body->xoffset() + _parent_rectangle.get_x();
}
double
PortMatrixGrid::parent_to_component_x (double x) const
{
return x + _body->xoffset() - _parent_rectangle.get_x();
}
double
PortMatrixGrid::component_to_parent_y (double y) const
{
return y - _body->yoffset() + _parent_rectangle.get_y();
}
double
PortMatrixGrid::parent_to_component_y (double y) const
{
return y + _body->yoffset() - _parent_rectangle.get_y();
}
list<PortMatrixNode>
PortMatrixGrid::nodes_on_line (int x0, int y0, int x1, int y1) const
{
list<PortMatrixNode> p;
bool const steep = abs (y1 - y0) > abs (x1 - x0);
if (steep) {
int tmp = x0;
x0 = y0;
y0 = tmp;
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);
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 p;
}
bool
PortMatrixGrid::toggle_state (PortMatrixNode::State s) const
{
return (s == PortMatrixNode::NOT_ASSOCIATED || s == PortMatrixNode::PARTIAL);
}
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