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livetrax/gtk2_ardour/port_matrix_row_labels.cc

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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 <boost/weak_ptr.hpp>
#include <cairo/cairo.h>
#include "ardour/bundle.h"
#include "port_matrix_row_labels.h"
#include "port_matrix.h"
#include "port_matrix_body.h"
#include "i18n.h"
#include "utils.h"
PortMatrixRowLabels::PortMatrixRowLabels (PortMatrix* m, PortMatrixBody* b)
: PortMatrixLabels (m, b)
{
}
void
PortMatrixRowLabels::compute_dimensions ()
{
GdkPixmap* pm = gdk_pixmap_new (NULL, 1, 1, 24);
gdk_drawable_set_colormap (pm, gdk_colormap_get_system());
cairo_t* cr = gdk_cairo_create (pm);
_longest_port_name = 0;
_longest_bundle_name = 0;
_height = 0;
ARDOUR::BundleList const r = _matrix->rows()->bundles();
for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
cairo_text_extents_t ext;
cairo_text_extents (cr, (*i)->channel_name(j).c_str(), &ext);
if (ext.width > _longest_port_name) {
_longest_port_name = ext.width;
}
}
cairo_text_extents_t ext;
cairo_text_extents (cr, (*i)->name().c_str(), &ext);
if (ext.width > _longest_bundle_name) {
_longest_bundle_name = ext.width;
}
if (_matrix->show_only_bundles()) {
_height += row_height ();
} else {
_height += (*i)->nchannels() * row_height();
}
}
_highest_group_name = 0;
for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
if ((*i)->visible()) {
cairo_text_extents_t ext;
cairo_text_extents (cr, (*i)->name.c_str(), &ext);
if (ext.height > _highest_group_name) {
_highest_group_name = ext.height;
}
}
}
cairo_destroy (cr);
gdk_pixmap_unref (pm);
_width = _highest_group_name +
_longest_bundle_name +
name_pad() * 4;
if (!_matrix->show_only_bundles()) {
_width += _longest_port_name;
_width += name_pad() * 2;
}
}
void
PortMatrixRowLabels::render (cairo_t* cr)
{
/* BACKGROUND */
set_source_rgb (cr, background_colour());
cairo_rectangle (cr, 0, 0, _width, _height);
cairo_fill (cr);
/* PORT GROUP NAMES */
double x = 0;
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
x = 0;
} else {
x = _width - _highest_group_name - 2 * name_pad();
}
double y = 0;
int g = 0;
for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
if (!(*i)->visible() || (*i)->bundles().empty()) {
continue;
}
/* compute height of this group */
double h = 0;
if (_matrix->show_only_bundles()) {
h = (*i)->bundles().size() * row_height();
} else {
h = (*i)->total_channels () * row_height();
}
/* rectangle */
set_source_rgb (cr, get_a_group_colour (g));
double const rw = _highest_group_name + 2 * name_pad();
cairo_rectangle (cr, x, y, rw, h);
cairo_fill (cr);
/* hence what abbreviation (or not) we need for the group name */
std::string const upper = Glib::ustring ((*i)->name).uppercase ();
std::pair<std::string, double> display = fit_to_pixels (cr, upper, h);
/* plot it */
set_source_rgb (cr, text_colour());
cairo_move_to (cr, x + rw - name_pad(), y + (h + display.second) / 2);
cairo_save (cr);
cairo_rotate (cr, - M_PI / 2);
cairo_show_text (cr, display.first.c_str());
cairo_restore (cr);
y += h;
++g;
}
/* BUNDLE NAMES */
y = 0;
ARDOUR::BundleList const r = _matrix->rows()->bundles();
for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
render_bundle_name (cr, get_a_bundle_colour (i - r.begin ()), 0, y, *i);
int const n = _matrix->show_only_bundles() ? 1 : (*i)->nchannels();
y += row_height() * n;
}
/* PORT NAMES */
if (!_matrix->show_only_bundles()) {
y = 0;
for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
render_channel_name (cr, get_a_bundle_colour (i - r.begin()), 0, y, ARDOUR::BundleChannel (*i, j));
y += row_height();
}
}
}
}
void
PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
{
switch (b) {
case 1:
_body->highlight_associated_channels (_matrix->row_index(), y / row_height ());
break;
case 3:
maybe_popup_context_menu (x, y, t);
break;
}
}
void
PortMatrixRowLabels::maybe_popup_context_menu (double x, double y, uint32_t t)
{
if ( (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x > (_longest_bundle_name + name_pad() * 2)) ||
(_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x < (_longest_port_name + name_pad() * 2))
) {
_matrix->popup_channel_context_menu (_matrix->row_index(), y / row_height(), t);
}
}
double
PortMatrixRowLabels::component_to_parent_x (double x) const
{
return x + _parent_rectangle.get_x();
}
double
PortMatrixRowLabels::parent_to_component_x (double x) const
{
return x - _parent_rectangle.get_x();
}
double
PortMatrixRowLabels::component_to_parent_y (double y) const
{
return y - _body->yoffset() + _parent_rectangle.get_y();
}
double
PortMatrixRowLabels::parent_to_component_y (double y) const
{
return y + _body->yoffset() - _parent_rectangle.get_y();
}
double
PortMatrixRowLabels::bundle_name_x () const
{
double x = 0;
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
x = _highest_group_name + 2 * name_pad();
} else {
if (_matrix->show_only_bundles()) {
x = 0;
} else {
x = _longest_port_name + name_pad() * 2;
}
}
return x;
}
double
PortMatrixRowLabels::port_name_x () const
{
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
return _longest_bundle_name + _highest_group_name + name_pad() * 4;
} else {
return 0;
}
return 0;
}
void
PortMatrixRowLabels::render_bundle_name (
cairo_t* cr, Gdk::Color colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
)
{
double const x = bundle_name_x ();
int const n = _matrix->show_only_bundles() ? 1 : b->nchannels();
set_source_rgb (cr, colour);
cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, row_height() * n);
cairo_fill_preserve (cr);
set_source_rgb (cr, background_colour());
cairo_set_line_width (cr, label_border_width ());
cairo_stroke (cr);
double const off = row_height() / 2;
// if ((*i)->nchannels () > 0 && !_matrix->show_only_bundles()) {
// /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
// cairo_text_extents_t ext;
// cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
// off = (row_height() - ext.height) / 2;
// }
set_source_rgb (cr, text_colour());
cairo_move_to (cr, xoff + x + name_pad(), yoff + name_pad() + off);
cairo_show_text (cr, b->name().c_str());
}
void
PortMatrixRowLabels::render_channel_name (
cairo_t* cr, Gdk::Color colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
)
{
set_source_rgb (cr, colour);
cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, row_height());
cairo_fill_preserve (cr);
set_source_rgb (cr, background_colour());
cairo_set_line_width (cr, label_border_width ());
cairo_stroke (cr);
cairo_text_extents_t ext;
cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
double const off = (row_height() - ext.height) / 2;
set_source_rgb (cr, text_colour());
cairo_move_to (cr, port_name_x() + xoff + name_pad(), yoff + name_pad() + off);
cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
}
double
PortMatrixRowLabels::channel_x (ARDOUR::BundleChannel const& bc) const
{
return 0;
}
double
PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
{
uint32_t n = 0;
ARDOUR::BundleList::const_iterator i = _matrix->rows()->bundles().begin();
while (i != _matrix->rows()->bundles().end() && *i != bc.bundle) {
if (_matrix->show_only_bundles()) {
n += 1;
} else {
n += (*i)->nchannels ();
}
++i;
}
if (!_matrix->show_only_bundles()) {
n += bc.channel;
}
return n * row_height();
}
void
PortMatrixRowLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
{
if (bc.bundle) {
if (_matrix->show_only_bundles()) {
_body->queue_draw_area (
component_to_parent_x (bundle_name_x()),
component_to_parent_y (channel_y (bc)),
_longest_bundle_name + name_pad() * 2,
row_height()
);
} else {
_body->queue_draw_area (
component_to_parent_x (port_name_x()),
component_to_parent_y (channel_y (bc)),
_longest_port_name + name_pad() * 2,
row_height()
);
}
}
}
void
PortMatrixRowLabels::mouseover_changed (PortMatrixNode const &)
{
clear_channel_highlights ();
if (_body->mouseover().row.bundle) {
add_channel_highlight (_body->mouseover().row);
}
}