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livetrax/gtk2_ardour/port_matrix_body.cc
Carl Hetherington be55dcbce3 Primary-modifier click on a node in the port matrix toggles association for everything in a diagonal line down and to the right of the clicked node.
git-svn-id: svn://localhost/ardour2/branches/3.0@6122 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-11-18 15:16:28 +00:00

497 lines
12 KiB
C++

/*
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 "ardour/bundle.h"
#include "ardour/types.h"
#include "port_matrix_body.h"
#include "port_matrix.h"
#include "port_matrix_column_labels.h"
#include "port_matrix_row_labels.h"
#include "port_matrix_grid.h"
using namespace std;
PortMatrixBody::PortMatrixBody (PortMatrix* p)
: _matrix (p),
_alloc_width (0),
_alloc_height (0),
_xoffset (0),
_yoffset (0),
_ignore_component_size_changed (false)
{
_column_labels = new PortMatrixColumnLabels (p, this);
_row_labels = new PortMatrixRowLabels (p, this);
_grid = new PortMatrixGrid (p, this);
_components.push_back (_column_labels);
_components.push_back (_row_labels);
_components.push_back (_grid);
add_events (Gdk::LEAVE_NOTIFY_MASK | Gdk::POINTER_MOTION_MASK);
}
PortMatrixBody::~PortMatrixBody ()
{
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
delete *i;
}
}
bool
PortMatrixBody::on_expose_event (GdkEventExpose* event)
{
if (_matrix->visible_columns()->bundles().empty() || _matrix->visible_rows()->bundles().empty()) {
/* nothing to connect */
cairo_t* cr = gdk_cairo_create (get_window()->gobj());
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0, 0, _alloc_width, _alloc_height);
cairo_fill (cr);
stringstream t;
t << _("There are no ") << (_matrix->type() == ARDOUR::DataType::AUDIO ? _("audio") : _("MIDI")) << _(" ports to connect.");
cairo_text_extents_t ext;
cairo_text_extents (cr, t.str().c_str(), &ext);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_move_to (cr, (_alloc_width - ext.width) / 2, (_alloc_height + ext.height) / 2);
cairo_show_text (cr, t.str().c_str ());
cairo_destroy (cr);
return true;
}
Gdk::Rectangle const exposure (
event->area.x, event->area.y, event->area.width, event->area.height
);
bool intersects;
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
Gdk::Rectangle r = exposure;
/* the get_pixmap call may cause things to be rerendered and sizes to change,
so fetch the pixmap before calculating where to put it */
GdkPixmap* p = (*i)->get_pixmap (get_window()->gobj());
r.intersect ((*i)->parent_rectangle(), intersects);
if (intersects) {
gdk_draw_drawable (
get_window()->gobj(),
get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
p,
(*i)->parent_to_component_x (r.get_x()),
(*i)->parent_to_component_y (r.get_y()),
r.get_x(),
r.get_y(),
r.get_width(),
r.get_height()
);
}
}
cairo_t* cr = gdk_cairo_create (get_window()->gobj());
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
cairo_save (cr);
set_cairo_clip (cr, (*i)->parent_rectangle ());
(*i)->draw_extra (cr);
cairo_restore (cr);
}
cairo_destroy (cr);
return true;
}
void
PortMatrixBody::on_size_request (Gtk::Requisition *req)
{
pair<int, int> const col = _column_labels->dimensions ();
pair<int, int> const row = _row_labels->dimensions ();
pair<int, int> const grid = _grid->dimensions ();
if (grid.first == 0 && grid.second == 0) {
/* nothing to display */
req->width = 256;
req->height = 64;
return;
}
/* don't ask for the maximum size of our contents, otherwise GTK won't
let the containing window shrink below this size */
/* XXX these shouldn't be hard-coded */
int const min_width = 512;
int const min_height = 512;
req->width = min (min_width, max (col.first, grid.first + row.first));
req->height = min (min_height / _matrix->min_height_divisor(), col.second + grid.second);
}
void
PortMatrixBody::on_size_allocate (Gtk::Allocation& alloc)
{
Gtk::EventBox::on_size_allocate (alloc);
_alloc_width = alloc.get_width ();
_alloc_height = alloc.get_height ();
compute_rectangles ();
_matrix->setup_scrollbars ();
}
void
PortMatrixBody::compute_rectangles ()
{
/* full sizes of components */
pair<uint32_t, uint32_t> const col = _column_labels->dimensions ();
uint32_t col_overhang = _column_labels->overhang ();
pair<uint32_t, uint32_t> const row = _row_labels->dimensions ();
pair<uint32_t, uint32_t> const grid = _grid->dimensions ();
Gdk::Rectangle col_rect;
Gdk::Rectangle row_rect;
Gdk::Rectangle grid_rect;
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
col_rect.set_x (0);
col_rect.set_y (0);
grid_rect.set_x (0);
col_rect.set_width (min (col.first, _alloc_width));
uint32_t const y = min (_alloc_height, col.second);
col_rect.set_height (y);
row_rect.set_y (y);
row_rect.set_height (_alloc_height - y);
grid_rect.set_y (y);
grid_rect.set_height (_alloc_height - y);
uint32_t x = 0;
if (_alloc_width > (grid.first + row.first)) {
x = grid.first;
} else if (_alloc_width > row.first) {
x = _alloc_width - row.first;
}
grid_rect.set_width (x);
row_rect.set_x (x);
row_rect.set_width (_alloc_width - x);
} else if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
col_rect.set_height (min (_alloc_height, col.second));
row_rect.set_x (0);
row_rect.set_y (0);
row_rect.set_width (min (_alloc_width, row.first));
row_rect.set_height (std::min (_alloc_height - col_rect.get_height(), row.second));
grid_rect.set_x (row_rect.get_width());
grid_rect.set_y (0);
grid_rect.set_width (std::min (_alloc_width - row_rect.get_width(), grid.first));
grid_rect.set_height (row_rect.get_height ());
col_rect.set_width (grid_rect.get_width () + col_overhang);
col_rect.set_x (row_rect.get_width() + grid_rect.get_width() - col_rect.get_width());
col_rect.set_y (row_rect.get_height());
}
_row_labels->set_parent_rectangle (row_rect);
_column_labels->set_parent_rectangle (col_rect);
_grid->set_parent_rectangle (grid_rect);
}
void
PortMatrixBody::setup ()
{
/* Discard any old connections to bundles */
for (list<sigc::connection>::iterator i = _bundle_connections.begin(); i != _bundle_connections.end(); ++i) {
i->disconnect ();
}
_bundle_connections.clear ();
/* Connect to bundles so that we find out when their names change */
PortGroup::BundleList r = _matrix->rows()->bundles ();
for (PortGroup::BundleList::iterator i = r.begin(); i != r.end(); ++i) {
_bundle_connections.push_back (
i->bundle->Changed.connect (sigc::hide (sigc::mem_fun (*this, &PortMatrixBody::rebuild_and_draw_row_labels)))
);
}
PortGroup::BundleList c = _matrix->columns()->bundles ();
for (PortGroup::BundleList::iterator i = c.begin(); i != c.end(); ++i) {
_bundle_connections.push_back (
i->bundle->Changed.connect (sigc::hide (sigc::mem_fun (*this, &PortMatrixBody::rebuild_and_draw_column_labels)))
);
}
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
(*i)->setup ();
}
set_mouseover (PortMatrixNode ());
_ignore_component_size_changed = true;
compute_rectangles ();
_ignore_component_size_changed = false;
}
uint32_t
PortMatrixBody::full_scroll_width ()
{
return _grid->dimensions().first;
}
uint32_t
PortMatrixBody::alloc_scroll_width ()
{
return _grid->parent_rectangle().get_width();
}
uint32_t
PortMatrixBody::full_scroll_height ()
{
return _grid->dimensions().second;
}
uint32_t
PortMatrixBody::alloc_scroll_height ()
{
return _grid->parent_rectangle().get_height();
}
void
PortMatrixBody::set_xoffset (uint32_t xo)
{
_xoffset = xo;
queue_draw ();
}
void
PortMatrixBody::set_yoffset (uint32_t yo)
{
_yoffset = yo;
queue_draw ();
}
bool
PortMatrixBody::on_button_press_event (GdkEventButton* ev)
{
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
if (Gdk::Region ((*i)->parent_rectangle()).point_in (ev->x, ev->y)) {
(*i)->button_press (
(*i)->parent_to_component_x (ev->x),
(*i)->parent_to_component_y (ev->y),
ev->button, ev->time, ev->state
);
}
}
return true;
}
bool
PortMatrixBody::on_button_release_event (GdkEventButton* ev)
{
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
if (Gdk::Region ((*i)->parent_rectangle()).point_in (ev->x, ev->y)) {
(*i)->button_release (
(*i)->parent_to_component_x (ev->x),
(*i)->parent_to_component_y (ev->y),
ev->button, ev->time, ev->state
);
} else {
(*i)->button_release (
-1, -1,
ev->button, ev->time, ev->state
);
}
}
return true;
}
void
PortMatrixBody::rebuild_and_draw_grid ()
{
_grid->require_rebuild ();
queue_draw ();
}
void
PortMatrixBody::rebuild_and_draw_column_labels ()
{
_column_labels->require_rebuild ();
queue_draw ();
}
void
PortMatrixBody::rebuild_and_draw_row_labels ()
{
_row_labels->require_rebuild ();
queue_draw ();
}
bool
PortMatrixBody::on_leave_notify_event (GdkEventCrossing* ev)
{
if (ev->type == GDK_LEAVE_NOTIFY) {
set_mouseover (PortMatrixNode ());
}
return true;
}
bool
PortMatrixBody::on_motion_notify_event (GdkEventMotion* ev)
{
bool done = false;
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
if (Gdk::Region ((*i)->parent_rectangle()).point_in (ev->x, ev->y)) {
(*i)->motion (
(*i)->parent_to_component_x (ev->x),
(*i)->parent_to_component_y (ev->y)
);
done = true;
}
}
if (!done) {
set_mouseover (PortMatrixNode ());
}
return true;
}
void
PortMatrixBody::set_mouseover (PortMatrixNode const & n)
{
list<PortMatrixNode> m;
m.push_back (n);
set_mouseover (m);
}
void
PortMatrixBody::set_mouseover (list<PortMatrixNode> const & n)
{
if (n == _mouseover) {
return;
}
/* Channel highlights are set up only on mouseovers, so
it's reasonable to remove all channel highlights here.
We can't let individual components clear their own highlights
because of the case where, say, the row labels set up some column
highlights, and then we ask the column labels to set up their
own highlights and they clear them out before they start.
*/
_row_labels->clear_channel_highlights ();
_column_labels->clear_channel_highlights ();
list<PortMatrixNode> old = _mouseover;
_mouseover = n;
for (list<PortMatrixComponent*>::iterator i = _components.begin(); i != _components.end(); ++i) {
(*i)->mouseover_changed (old);
}
}
void
PortMatrixBody::highlight_associated_channels (int dim, ARDOUR::BundleChannel h)
{
ARDOUR::BundleChannel bc[2];
bc[dim] = h;
if (!bc[dim].bundle) {
return;
}
if (dim == _matrix->column_index()) {
_column_labels->add_channel_highlight (bc[dim]);
} else {
_row_labels->add_channel_highlight (bc[dim]);
}
PortGroup::BundleList const b = _matrix->visible_ports(1 - dim)->bundles ();
for (PortGroup::BundleList::const_iterator i = b.begin(); i != b.end(); ++i) {
for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
bc[1 - dim] = ARDOUR::BundleChannel (i->bundle, j);
if (_matrix->get_state (bc) == PortMatrixNode::ASSOCIATED) {
if (dim == _matrix->column_index()) {
_row_labels->add_channel_highlight (bc[1 - dim]);
} else {
_column_labels->add_channel_highlight (bc[1 - dim]);
}
}
}
}
}
void
PortMatrixBody::set_cairo_clip (cairo_t* cr, Gdk::Rectangle const & r) const
{
cairo_rectangle (cr, r.get_x(), r.get_y(), r.get_width(), r.get_height());
cairo_clip (cr);
}
void
PortMatrixBody::component_size_changed ()
{
if (_ignore_component_size_changed) {
return;
}
compute_rectangles ();
_matrix->setup_scrollbars ();
}
pair<uint32_t, uint32_t>
PortMatrixBody::max_size () const
{
pair<uint32_t, uint32_t> const col = _column_labels->dimensions ();
pair<uint32_t, uint32_t> const row = _row_labels->dimensions ();
pair<uint32_t, uint32_t> const grid = _grid->dimensions ();
return make_pair (std::max (row.first, _column_labels->overhang()) + grid.first, col.second + grid.second);
}