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livetrax/gtk2_ardour/port_matrix_row_labels.cc

349 lines
8.9 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 <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"
using namespace std;
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;
/* Compute maximum dimensions using all port groups, so that we allow for the largest and hence
we can change between visible groups without the size of the labels jumping around.
*/
for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
PortGroup::BundleList const r = (*i)->bundles ();
for (PortGroup::BundleList::const_iterator j = r.begin(); j != r.end(); ++j) {
for (uint32_t k = 0; k < (*j)->bundle->nchannels(); ++k) {
cairo_text_extents_t ext;
cairo_text_extents (cr, (*j)->bundle->channel_name(k).c_str(), &ext);
if (ext.width > _longest_port_name) {
_longest_port_name = ext.width;
}
}
cairo_text_extents_t ext;
cairo_text_extents (cr, (*j)->bundle->name().c_str(), &ext);
if (ext.width > _longest_bundle_name) {
_longest_bundle_name = ext.width;
}
}
}
if (_matrix->visible_rows()) {
_height = group_size (_matrix->visible_rows()) * grid_spacing ();
} else {
_height = 0;
}
cairo_destroy (cr);
gdk_pixmap_unref (pm);
_width = _longest_bundle_name +
name_pad() * 2;
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);
/* BUNDLE AND PORT NAMES */
double y = 0;
int N = 0;
int M = 0;
PortGroup::BundleList const & bundles = _matrix->visible_rows()->bundles ();
for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
render_bundle_name (cr, background_colour (), (*i)->has_colour ? (*i)->colour : get_a_bundle_colour (N), 0, y, (*i)->bundle);
if (!_matrix->show_only_bundles()) {
for (uint32_t j = 0; j < (*i)->bundle->nchannels(); ++j) {
Gdk::Color c = (*i)->has_colour ? (*i)->colour : get_a_bundle_colour (M);
render_channel_name (cr, background_colour (), c, 0, y, ARDOUR::BundleChannel ((*i)->bundle, j));
y += grid_spacing();
++M;
}
} else {
y += grid_spacing();
}
++N;
}
}
void
PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t, guint)
{
ARDOUR::BundleChannel w = position_to_channel (y, x, _matrix->visible_rows());
if (
(_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_longest_port_name + name_pad() * 2)) ||
(_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < (_longest_bundle_name + name_pad() * 2))
) {
w.channel = -1;
}
if (b == 3) {
_matrix->popup_menu (
ARDOUR::BundleChannel (),
w,
t
);
}
}
double
PortMatrixRowLabels::component_to_parent_x (double x) const
{
/* Row labels don't scroll horizontally, so x conversion does not depend on xoffset */
return x + _parent_rectangle.get_x();
}
double
PortMatrixRowLabels::parent_to_component_x (double x) const
{
/* Row labels don't scroll horizontally, so x conversion does not depend on xoffset */
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::TOP_TO_RIGHT && !_matrix->show_only_bundles ()) {
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 + name_pad() * 2;
} else {
return 0;
}
return 0;
}
void
PortMatrixRowLabels::render_bundle_name (
cairo_t* cr, Gdk::Color fg_colour, Gdk::Color bg_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, bg_colour);
cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, grid_spacing() * n);
cairo_fill_preserve (cr);
set_source_rgb (cr, fg_colour);
cairo_set_line_width (cr, label_border_width ());
cairo_stroke (cr);
cairo_text_extents_t ext;
cairo_text_extents (cr, b->name().c_str(), &ext);
double const off = (grid_spacing() - 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 fg_colour, Gdk::Color bg_colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
)
{
set_source_rgb (cr, bg_colour);
cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, grid_spacing());
cairo_fill_preserve (cr);
set_source_rgb (cr, fg_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 = (grid_spacing() - ext.height) / 2;
if (bc.bundle->nchannels() > 1) {
/* only plot the name if the bundle has more than one channel;
the name of a single channel is assumed to be redundant */
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 &) const
{
return 0;
}
double
PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
{
return channel_to_position (bc, _matrix->visible_rows()) * grid_spacing ();
}
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()) - 1,
component_to_parent_y (channel_y (bc)) - 1,
_longest_bundle_name + name_pad() * 2 + 2,
grid_spacing() + 2
);
} else {
_body->queue_draw_area (
component_to_parent_x (port_name_x()) - 1,
component_to_parent_y (channel_y (bc)) - 1,
_longest_port_name + name_pad() * 2 + 2,
grid_spacing() + 2
);
}
}
}
void
PortMatrixRowLabels::mouseover_changed (list<PortMatrixNode> const &)
{
list<PortMatrixNode> const m = _body->mouseover ();
for (list<PortMatrixNode>::const_iterator i = m.begin(); i != m.end(); ++i) {
ARDOUR::BundleChannel c = i->column;
ARDOUR::BundleChannel r = i->row;
if (c.bundle && r.bundle) {
add_channel_highlight (r);
} else if (r.bundle) {
_body->highlight_associated_channels (_matrix->row_index(), r);
}
}
}
void
PortMatrixRowLabels::motion (double x, double y)
{
ARDOUR::BundleChannel const w = position_to_channel (y, x, _matrix->visible_rows());
uint32_t const bw = _longest_bundle_name + 2 * name_pad();
bool done = false;
if (w.bundle) {
if (
(_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < bw) ||
(_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_width - bw) && x < _width)
) {
/* if the mouse is over a bundle name, highlight all channels in the bundle */
list<PortMatrixNode> n;
for (uint32_t i = 0; i < w.bundle->nchannels(); ++i) {
ARDOUR::BundleChannel const bc (w.bundle, i);
n.push_back (PortMatrixNode (bc, ARDOUR::BundleChannel ()));
}
_body->set_mouseover (n);
done = true;
} else if (x < _width) {
_body->set_mouseover (PortMatrixNode (w, ARDOUR::BundleChannel ()));
done = true;
}
}
if (!done) {
/* not over any bundle */
_body->set_mouseover (PortMatrixNode ());
return;
}
}