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livetrax/gtk2_ardour/port_matrix_body.cc
Carl Hetherington 2e02e157c3 Tidy up a bit in the case where the port matrix has nothing to display.
git-svn-id: svn://localhost/ardour2/branches/3.0@6089 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-11-15 00:26:28 +00:00

528 lines
13 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),
_mouse_over_grid (false),
_ignore_component_size_changed (false)
{
_column_labels = new PortMatrixColumnLabels (p, this);
_row_labels = new PortMatrixRowLabels (p, this);
_grid = new PortMatrixGrid (p, this);
add_events (Gdk::LEAVE_NOTIFY_MASK | Gdk::POINTER_MOTION_MASK);
}
PortMatrixBody::~PortMatrixBody ()
{
delete _column_labels;
delete _row_labels;
delete _grid;
}
bool
PortMatrixBody::on_expose_event (GdkEventExpose* event)
{
if (_matrix->columns()->empty() || _matrix->rows()->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;
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 = _column_labels->get_pixmap (get_window()->gobj());
r.intersect (_column_labels->parent_rectangle(), intersects);
if (intersects) {
gdk_draw_drawable (
get_window()->gobj(),
get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
p,
_column_labels->parent_to_component_x (r.get_x()),
_column_labels->parent_to_component_y (r.get_y()),
r.get_x(),
r.get_y(),
r.get_width(),
r.get_height()
);
}
r = exposure;
p = _row_labels->get_pixmap (get_window()->gobj());
r.intersect (_row_labels->parent_rectangle(), intersects);
if (intersects) {
gdk_draw_drawable (
get_window()->gobj(),
get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
p,
_row_labels->parent_to_component_x (r.get_x()),
_row_labels->parent_to_component_y (r.get_y()),
r.get_x(),
r.get_y(),
r.get_width(),
r.get_height()
);
}
r = exposure;
p = _grid->get_pixmap (get_window()->gobj());
r.intersect (_grid->parent_rectangle(), intersects);
if (intersects) {
gdk_draw_drawable (
get_window()->gobj(),
get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
p,
_grid->parent_to_component_x (r.get_x()),
_grid->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());
cairo_save (cr);
set_cairo_clip (cr, _grid->parent_rectangle ());
_grid->draw_extra (cr);
cairo_restore (cr);
cairo_save (cr);
set_cairo_clip (cr, _row_labels->parent_rectangle ());
_row_labels->draw_extra (cr);
cairo_restore (cr);
cairo_save (cr);
set_cairo_clip (cr, _column_labels->parent_rectangle ());
_column_labels->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)))
);
}
_column_labels->setup ();
_row_labels->setup ();
_grid->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)
{
if (Gdk::Region (_grid->parent_rectangle()).point_in (ev->x, ev->y)) {
_grid->button_press (
_grid->parent_to_component_x (ev->x),
_grid->parent_to_component_y (ev->y),
ev->button, ev->time
);
} else if (Gdk::Region (_row_labels->parent_rectangle()).point_in (ev->x, ev->y)) {
_row_labels->button_press (
_row_labels->parent_to_component_x (ev->x),
_row_labels->parent_to_component_y (ev->y),
ev->button, ev->time
);
} else if (Gdk::Region (_column_labels->parent_rectangle()).point_in (ev->x, ev->y)) {
_column_labels->button_press (
_column_labels->parent_to_component_x (ev->x),
_column_labels->parent_to_component_y (ev->y),
ev->button, ev->time
);
}
return true;
}
bool
PortMatrixBody::on_button_release_event (GdkEventButton* ev)
{
if (Gdk::Region (_row_labels->parent_rectangle()).point_in (ev->x, ev->y) ||
Gdk::Region (_column_labels->parent_rectangle()).point_in (ev->x, ev->y)) {
_row_labels->clear_channel_highlights ();
_column_labels->clear_channel_highlights ();
} else if (Gdk::Region (_grid->parent_rectangle()).point_in (ev->x, ev->y)) {
_grid->button_release (
_grid->parent_to_component_x (ev->x),
_grid->parent_to_component_y (ev->y),
ev->button, ev->time
);
}
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)
{
if (Gdk::Region (_grid->parent_rectangle()).point_in (ev->x, ev->y)) {
_grid->motion (
_grid->parent_to_component_x (ev->x),
_grid->parent_to_component_y (ev->y)
);
_mouse_over_grid = true;
} else {
if (_mouse_over_grid) {
set_mouseover (PortMatrixNode ());
_mouse_over_grid = false;
}
}
return true;
}
void
PortMatrixBody::set_mouseover (PortMatrixNode const & n)
{
if (n == _mouseover) {
return;
}
PortMatrixNode old = _mouseover;
_mouseover = n;
_grid->mouseover_changed (old);
_row_labels->mouseover_changed (old);
_column_labels->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->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);
}