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livetrax/gtk2_ardour/port_matrix_column_labels.cc
Carl Hetherington 6da5dd6d41 Port matrix tweaks: scroll wheel support; use the correct verb for disassociation in the menu; fixes for gaps appearing when groups are hidden.
git-svn-id: svn://localhost/ardour2/branches/3.0@5382 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-07-19 19:07:31 +00:00

539 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_column_labels.h"
#include "port_matrix.h"
#include "port_matrix_body.h"
#include "utils.h"
using namespace std;
PortMatrixColumnLabels::PortMatrixColumnLabels (PortMatrix* m, PortMatrixBody* b)
: PortMatrixLabels (m, b),
_overhang (0)
{
}
void
PortMatrixColumnLabels::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);
/* width of the longest bundle name */
_longest_bundle_name = 0;
/* width of the longest channel name */
_longest_channel_name = 0;
/* height of highest bit of text (apart from group names) */
_highest_text = 0;
/* width of the whole thing */
_width = 0;
_highest_group_name = 0;
for (PortGroupList::List::const_iterator i = _matrix->columns()->begin(); i != _matrix->columns()->end(); ++i) {
PortGroup::BundleList const c = _matrix->columns()->bundles();
for (PortGroup::BundleList::const_iterator j = c.begin (); j != c.end(); ++j) {
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 (ext.height > _highest_text) {
_highest_text = ext.height;
}
for (uint32_t k = 0; k < j->bundle->nchannels (); ++k) {
cairo_text_extents (
cr,
j->bundle->channel_name (k).c_str(),
&ext
);
}
if (ext.width > _longest_channel_name) {
_longest_channel_name = ext.width;
}
if (ext.height > _highest_text) {
_highest_text = ext.height;
}
}
_width += group_size (*i) * grid_spacing ();
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);
/* height of the whole thing */
int a = _longest_bundle_name + 4 * name_pad();
if (!_matrix->show_only_bundles()) {
a += _longest_channel_name;
}
double const parallelogram_height = a * sin (angle()) + _highest_text * cos (angle());
_height = parallelogram_height + _highest_group_name + 2 * name_pad();
_overhang = parallelogram_height / tan (angle ());
_width += _overhang;
}
double
PortMatrixColumnLabels::basic_text_x_pos (int c) const
{
return grid_spacing() / 2 +
_highest_text / (2 * sin (angle ()));
}
void
PortMatrixColumnLabels::render (cairo_t* cr)
{
/* BACKGROUND */
set_source_rgb (cr, background_colour());
cairo_rectangle (cr, 0, 0, _width, _height);
cairo_fill (cr);
/* PORT GROUP NAME */
double x = 0;
double y = 0;
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
x = slanted_height() / tan (angle());
y = _highest_group_name + name_pad();
} else {
x = 0;
y = _height - name_pad();
}
int g = 0;
for (PortGroupList::List::const_iterator i = _matrix->columns()->begin(); i != _matrix->columns()->end(); ++i) {
/* compute width of this group */
uint32_t w = 0;
if (!(*i)->visible()) {
w = grid_spacing ();
} else {
if (_matrix->show_only_bundles()) {
w = (*i)->bundles().size() * grid_spacing();
} else {
w = (*i)->total_channels() * grid_spacing();
}
}
if (w == 0) {
continue;
}
/* rectangle */
set_source_rgb (cr, get_a_group_colour (g));
double const rh = _highest_group_name + 2 * name_pad();
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
cairo_rectangle (cr, x, 0, w, rh);
} else {
cairo_rectangle (cr, x, _height - rh, w, rh);
}
cairo_fill (cr);
string const upper = Glib::ustring ((*i)->name).uppercase ();
pair<string, double> const display = fit_to_pixels (cr, upper, w);
/* plot it */
set_source_rgb (cr, text_colour());
cairo_move_to (cr, x + (w - display.second) / 2, y);
cairo_show_text (cr, display.first.c_str());
x += w;
++g;
}
/* BUNDLE PARALLELOGRAM-TYPE-THING AND NAME */
x = 0;
int N = 0;
for (PortGroupList::List::const_iterator i = _matrix->columns()->begin(); i != _matrix->columns()->end(); ++i) {
if ((*i)->visible ()) {
PortGroup::BundleList const & bundles = (*i)->bundles ();
for (PortGroup::BundleList::const_iterator j = bundles.begin (); j != bundles.end(); ++j) {
Gdk::Color c = j->has_colour ? j->colour : get_a_bundle_colour (N);
render_bundle_name (cr, c, x, 0, j->bundle);
if (_matrix->show_only_bundles()) {
x += grid_spacing();
} else {
x += j->bundle->nchannels () * grid_spacing();
}
++N;
}
} else {
x += grid_spacing ();
}
}
/* PORT NAMES */
if (!_matrix->show_only_bundles()) {
x = 0;
N = 0;
for (PortGroupList::List::const_iterator i = _matrix->columns()->begin(); i != _matrix->columns()->end(); ++i) {
if ((*i)->visible ()) {
PortGroup::BundleList const & bundles = (*i)->bundles ();
for (PortGroup::BundleList::const_iterator j = bundles.begin (); j != bundles.end(); ++j) {
for (uint32_t k = 0; k < j->bundle->nchannels(); ++k) {
Gdk::Color c = j->has_colour ? j->colour : get_a_bundle_colour (N);
render_channel_name (cr, c, x, 0, ARDOUR::BundleChannel (j->bundle, k));
x += grid_spacing();
}
++N;
}
} else {
x += grid_spacing ();
}
}
}
}
double
PortMatrixColumnLabels::component_to_parent_x (double x) const
{
return x - _body->xoffset() + _parent_rectangle.get_x();
}
double
PortMatrixColumnLabels::parent_to_component_x (double x) const
{
return x + _body->xoffset() - _parent_rectangle.get_x();
}
double
PortMatrixColumnLabels::component_to_parent_y (double y) const
{
return y + _parent_rectangle.get_y();
}
double
PortMatrixColumnLabels::parent_to_component_y (double y) const
{
return y - _parent_rectangle.get_y();
}
void
PortMatrixColumnLabels::mouseover_changed (PortMatrixNode const &)
{
clear_channel_highlights ();
if (_body->mouseover().column.bundle) {
add_channel_highlight (_body->mouseover().column);
}
}
vector<pair<double, double> >
PortMatrixColumnLabels::port_name_shape (double xoff, double yoff) const
{
vector<pair<double, double> > shape;
double const lc = _longest_channel_name + name_pad();
double const w = grid_spacing();
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
double x_ = xoff + slanted_height() / tan (angle()) + w;
double y_ = yoff;
shape.push_back (make_pair (x_, y_));
x_ -= w;
shape.push_back (make_pair (x_, y_));
x_ -= lc * cos (angle());
y_ += lc * sin (angle());
shape.push_back (make_pair (x_, y_));
x_ += w * pow (sin (angle()), 2);
y_ += w * sin (angle()) * cos (angle());
shape.push_back (make_pair (x_, y_));
} else {
double x_ = xoff;
double y_ = yoff + _height;
shape.push_back (make_pair (x_, y_));
x_ += w;
shape.push_back (make_pair (x_, y_));
x_ += lc * cos (angle());
y_ -= lc * sin (angle());
shape.push_back (make_pair (x_, y_));
x_ -= grid_spacing() * pow (sin (angle()), 2);
y_ -= grid_spacing() * sin (angle()) * cos (angle());
shape.push_back (make_pair (x_, y_));
}
return shape;
}
void
PortMatrixColumnLabels::render_bundle_name (
cairo_t* cr, Gdk::Color colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
)
{
set_source_rgb (cr, colour);
double w = 0;
if (_matrix->show_only_bundles()) {
w = grid_spacing ();
} else {
w = b->nchannels() * grid_spacing();
}
double x_ = xoff;
uint32_t y = yoff;
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
y += _height;
} else {
y += slanted_height();
}
double y_ = y;
cairo_move_to (cr, x_, y_);
x_ += w;
cairo_line_to (cr, x_, y_);
x_ += slanted_height() / tan (angle ());
y_ -= slanted_height();
cairo_line_to (cr, x_, y_);
x_ -= w;
cairo_line_to (cr, x_, y_);
cairo_line_to (cr, xoff, y);
cairo_fill_preserve (cr);
set_source_rgb (cr, background_colour());
cairo_set_line_width (cr, label_border_width());
cairo_stroke (cr);
set_source_rgb (cr, text_colour());
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
double rl = 0;
if (_matrix->show_only_bundles()) {
rl = name_pad();
} else {
rl = 3 * name_pad() + _longest_channel_name;
}
cairo_move_to (
cr,
xoff + basic_text_x_pos (0) + rl * cos (angle()),
yoff + _height - rl * sin (angle())
);
} else {
cairo_move_to (
cr,
xoff + basic_text_x_pos (0),
yoff + slanted_height() - name_pad() * sin (angle())
);
}
cairo_save (cr);
cairo_rotate (cr, -angle());
cairo_show_text (cr, b->name().c_str());
cairo_restore (cr);
}
void
PortMatrixColumnLabels::render_channel_name (
cairo_t* cr, Gdk::Color colour, double xoff, double yoff, ARDOUR::BundleChannel const &bc
)
{
vector<pair<double, double> > const shape = port_name_shape (xoff, yoff);
cairo_move_to (cr, shape[0].first, shape[0].second);
for (uint32_t i = 1; i < 4; ++i) {
cairo_line_to (cr, shape[i].first, shape[i].second);
}
cairo_line_to (cr, shape[0].first, shape[0].second);
set_source_rgb (cr, colour);
cairo_fill_preserve (cr);
set_source_rgb (cr, background_colour());
cairo_set_line_width (cr, label_border_width());
cairo_stroke (cr);
set_source_rgb (cr, text_colour());
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
cairo_move_to (
cr,
xoff + basic_text_x_pos(bc.channel),
yoff + _height - name_pad() * sin (angle())
);
} else {
double const rl = 3 * name_pad() + _longest_bundle_name;
cairo_move_to (
cr,
xoff + basic_text_x_pos(bc.channel) + rl * cos (angle ()),
yoff + slanted_height() - rl * sin (angle())
);
}
cairo_save (cr);
cairo_rotate (cr, -angle());
cairo_show_text (
cr,
bc.bundle->channel_name(bc.channel).c_str()
);
cairo_restore (cr);
}
double
PortMatrixColumnLabels::channel_x (ARDOUR::BundleChannel const &bc) const
{
return channel_to_position (bc, _matrix->columns()) * grid_spacing ();
}
double
PortMatrixColumnLabels::channel_y (ARDOUR::BundleChannel const &bc) const
{
return 0;
}
void
PortMatrixColumnLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
{
if (!bc.bundle) {
return;
}
if (_matrix->show_only_bundles()) {
_body->queue_draw_area (
component_to_parent_x (channel_x (bc)),
component_to_parent_y (0),
grid_spacing() + _height * tan (angle()),
_height
);
} else {
double const x = channel_x (bc);
double const lc = _longest_channel_name + name_pad();
double const h = lc * sin (angle ()) + grid_spacing() * sin (angle()) * cos (angle());
if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
_body->queue_draw_area (
component_to_parent_x (x),
component_to_parent_y (_height - h),
grid_spacing() + lc * cos (angle()),
h
);
} else if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
double const x_ = x + slanted_height() / tan (angle()) - lc * cos (angle());
_body->queue_draw_area (
component_to_parent_x (x_),
component_to_parent_y (0),
grid_spacing() + lc * cos (angle()),
h
);
}
}
}
void
PortMatrixColumnLabels::button_press (double x, double y, int b, uint32_t t)
{
uint32_t cx = 0;
uint32_t const gh = _highest_group_name + 2 * name_pad();
bool group_name = false;
if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
if (y > (_height - gh)) {
group_name = true;
cx = x;
} else {
cx = x - (_height - gh - y) * tan (angle ());
}
} else {
if (y < gh) {
group_name = true;
cx = x - _overhang;
} else {
cx = x - (_height - y) * tan (angle ());
}
}
pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> gc = position_to_group_and_channel (cx / grid_spacing(), _matrix->columns());
if (b == 1) {
if (group_name && gc.first) {
gc.first->set_visible (!gc.first->visible ());
} else if (gc.second.bundle) {
_body->highlight_associated_channels (_matrix->column_index(), gc.second);
}
} else if (b == 3) {
_matrix->popup_menu (
gc,
make_pair (boost::shared_ptr<PortGroup> (), ARDOUR::BundleChannel ()),
t
);
}
}