341 lines
8.7 KiB
C++
341 lines
8.7 KiB
C++
/*
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Copyright (C) 2002-2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <iostream>
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#include <boost/weak_ptr.hpp>
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#include <cairo/cairo.h>
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#include "ardour/bundle.h"
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#include "port_matrix_row_labels.h"
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#include "port_matrix.h"
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#include "port_matrix_body.h"
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#include "i18n.h"
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#include "utils.h"
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using namespace std;
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PortMatrixRowLabels::PortMatrixRowLabels (PortMatrix* m, PortMatrixBody* b)
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: PortMatrixLabels (m, b)
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{
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}
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void
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PortMatrixRowLabels::compute_dimensions ()
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{
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GdkPixmap* pm = gdk_pixmap_new (NULL, 1, 1, 24);
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gdk_drawable_set_colormap (pm, gdk_colormap_get_system());
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cairo_t* cr = gdk_cairo_create (pm);
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_longest_port_name = 0;
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_longest_bundle_name = 0;
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/* Compute maximum dimensions using all port groups, so that we allow for the largest and hence
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we can change between visible groups without the size of the labels jumping around.
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*/
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for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
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PortGroup::BundleList const r = (*i)->bundles ();
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for (PortGroup::BundleList::const_iterator j = r.begin(); j != r.end(); ++j) {
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for (uint32_t k = 0; k < j->bundle->nchannels(); ++k) {
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cairo_text_extents_t ext;
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cairo_text_extents (cr, j->bundle->channel_name(k).c_str(), &ext);
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if (ext.width > _longest_port_name) {
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_longest_port_name = ext.width;
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}
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}
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cairo_text_extents_t ext;
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cairo_text_extents (cr, j->bundle->name().c_str(), &ext);
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if (ext.width > _longest_bundle_name) {
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_longest_bundle_name = ext.width;
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}
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}
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}
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if (_matrix->visible_rows()) {
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_height = group_size (_matrix->visible_rows()) * grid_spacing ();
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} else {
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_height = 0;
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}
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cairo_destroy (cr);
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gdk_pixmap_unref (pm);
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_width = _longest_bundle_name +
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name_pad() * 2;
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if (!_matrix->show_only_bundles()) {
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_width += _longest_port_name;
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_width += name_pad() * 2;
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}
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}
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void
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PortMatrixRowLabels::render (cairo_t* cr)
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{
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/* BACKGROUND */
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set_source_rgb (cr, background_colour());
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cairo_rectangle (cr, 0, 0, _width, _height);
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cairo_fill (cr);
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/* BUNDLE AND PORT NAMES */
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double y = 0;
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int N = 0;
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int M = 0;
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PortGroup::BundleList const & bundles = _matrix->visible_rows()->bundles ();
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for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
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render_bundle_name (cr, background_colour (), i->has_colour ? i->colour : get_a_bundle_colour (N), 0, y, i->bundle);
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if (!_matrix->show_only_bundles()) {
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for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
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Gdk::Color c = i->has_colour ? i->colour : get_a_bundle_colour (M);
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render_channel_name (cr, background_colour (), c, 0, y, ARDOUR::BundleChannel (i->bundle, j));
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y += grid_spacing();
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++M;
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}
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} else {
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y += grid_spacing();
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}
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++N;
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}
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}
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void
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PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t, guint)
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{
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ARDOUR::BundleChannel const w = position_to_channel (y, x, _matrix->visible_rows());
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if (b == 3) {
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_matrix->popup_menu (
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ARDOUR::BundleChannel (),
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w,
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t
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);
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}
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}
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double
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PortMatrixRowLabels::component_to_parent_x (double x) const
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{
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/* Row labels don't scroll horizontally, so x conversion does not depend on xoffset */
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return x + _parent_rectangle.get_x();
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}
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double
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PortMatrixRowLabels::parent_to_component_x (double x) const
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{
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/* Row labels don't scroll horizontally, so x conversion does not depend on xoffset */
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return x - _parent_rectangle.get_x();
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}
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double
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PortMatrixRowLabels::component_to_parent_y (double y) const
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{
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return y - _body->yoffset() + _parent_rectangle.get_y();
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}
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double
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PortMatrixRowLabels::parent_to_component_y (double y) const
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{
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return y + _body->yoffset() - _parent_rectangle.get_y();
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}
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double
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PortMatrixRowLabels::bundle_name_x () const
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{
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double x = 0;
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if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && !_matrix->show_only_bundles ()) {
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x = _longest_port_name + name_pad() * 2;
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}
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return x;
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}
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double
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PortMatrixRowLabels::port_name_x () const
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{
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if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
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return _longest_bundle_name + name_pad() * 2;
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} else {
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return 0;
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}
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return 0;
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}
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void
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PortMatrixRowLabels::render_bundle_name (
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cairo_t* cr, Gdk::Color fg_colour, Gdk::Color bg_colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
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)
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{
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double const x = bundle_name_x ();
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int const n = _matrix->show_only_bundles() ? 1 : b->nchannels();
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set_source_rgb (cr, bg_colour);
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cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, grid_spacing() * n);
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cairo_fill_preserve (cr);
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set_source_rgb (cr, fg_colour);
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cairo_set_line_width (cr, label_border_width ());
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cairo_stroke (cr);
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cairo_text_extents_t ext;
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cairo_text_extents (cr, b->name().c_str(), &ext);
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double const off = (grid_spacing() - ext.height) / 2;
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set_source_rgb (cr, text_colour());
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cairo_move_to (cr, xoff + x + name_pad(), yoff + name_pad() + off);
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cairo_show_text (cr, b->name().c_str());
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}
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void
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PortMatrixRowLabels::render_channel_name (
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cairo_t* cr, Gdk::Color fg_colour, Gdk::Color bg_colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
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)
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{
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set_source_rgb (cr, bg_colour);
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cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, grid_spacing());
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cairo_fill_preserve (cr);
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set_source_rgb (cr, fg_colour);
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cairo_set_line_width (cr, label_border_width ());
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cairo_stroke (cr);
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cairo_text_extents_t ext;
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cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
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double const off = (grid_spacing() - ext.height) / 2;
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if (bc.bundle->nchannels() > 1) {
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/* only plot the name if the bundle has more than one channel;
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the name of a single channel is assumed to be redundant */
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set_source_rgb (cr, text_colour());
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cairo_move_to (cr, port_name_x() + xoff + name_pad(), yoff + name_pad() + off);
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cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
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}
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}
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double
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PortMatrixRowLabels::channel_x (ARDOUR::BundleChannel const &) const
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{
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return 0;
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}
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double
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PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
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{
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return channel_to_position (bc, _matrix->visible_rows()) * grid_spacing ();
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}
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void
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PortMatrixRowLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
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{
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if (bc.bundle) {
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if (_matrix->show_only_bundles()) {
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_body->queue_draw_area (
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component_to_parent_x (bundle_name_x()) - 1,
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component_to_parent_y (channel_y (bc)) - 1,
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_longest_bundle_name + name_pad() * 2 + 2,
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grid_spacing() + 2
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);
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} else {
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_body->queue_draw_area (
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component_to_parent_x (port_name_x()) - 1,
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component_to_parent_y (channel_y (bc)) - 1,
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_longest_port_name + name_pad() * 2 + 2,
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grid_spacing() + 2
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);
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}
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}
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}
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void
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PortMatrixRowLabels::mouseover_changed (list<PortMatrixNode> const &)
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{
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list<PortMatrixNode> const m = _body->mouseover ();
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for (list<PortMatrixNode>::const_iterator i = m.begin(); i != m.end(); ++i) {
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ARDOUR::BundleChannel c = i->column;
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ARDOUR::BundleChannel r = i->row;
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if (c.bundle && r.bundle) {
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add_channel_highlight (r);
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} else if (r.bundle) {
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_body->highlight_associated_channels (_matrix->row_index(), r);
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}
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}
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}
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void
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PortMatrixRowLabels::motion (double x, double y)
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{
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ARDOUR::BundleChannel const w = position_to_channel (y, x, _matrix->visible_rows());
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uint32_t const bw = _longest_bundle_name + 2 * name_pad();
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bool done = false;
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if (w.bundle) {
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if (
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(_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < bw) ||
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(_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_width - bw) && x < _width)
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) {
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/* if the mouse is over a bundle name, highlight all channels in the bundle */
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list<PortMatrixNode> n;
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for (uint32_t i = 0; i < w.bundle->nchannels(); ++i) {
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ARDOUR::BundleChannel const bc (w.bundle, i);
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n.push_back (PortMatrixNode (bc, ARDOUR::BundleChannel ()));
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}
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_body->set_mouseover (n);
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done = true;
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} else if (x < _width) {
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_body->set_mouseover (PortMatrixNode (w, ARDOUR::BundleChannel ()));
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done = true;
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}
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}
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if (!done) {
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/* not over any bundle */
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_body->set_mouseover (PortMatrixNode ());
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return;
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}
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}
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