Set mixbufs count in the case of a panner being used, as
[ardour2.git] / gtk2_ardour / port_matrix_grid.cc
blob4a2f569d5c35aac875139d311a1d5d58d587cf24
1 /*
2 Copyright (C) 2002-2009 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <iostream>
21 #include <cairo/cairo.h>
22 #include "ardour/bundle.h"
23 #include "ardour/types.h"
24 #include "port_matrix_grid.h"
25 #include "port_matrix.h"
26 #include "port_matrix_body.h"
27 #include "keyboard.h"
29 using namespace std;
30 using Gtkmm2ext::Keyboard;
32 PortMatrixGrid::PortMatrixGrid (PortMatrix* m, PortMatrixBody* b)
33 : PortMatrixComponent (m, b),
34 _dragging (false),
35 _drag_valid (false),
36 _moved (false)
41 void
42 PortMatrixGrid::compute_dimensions ()
44 if (_matrix->visible_columns()) {
45 _width = group_size (_matrix->visible_columns()) * grid_spacing ();
46 } else {
47 _width = 0;
50 if (_matrix->visible_rows()) {
51 _height = group_size (_matrix->visible_rows()) * grid_spacing ();
52 } else {
53 _height = 0;
58 void
59 PortMatrixGrid::render (cairo_t* cr)
61 set_source_rgb (cr, background_colour());
62 cairo_rectangle (cr, 0, 0, _width, _height);
63 cairo_fill (cr);
65 PortGroup::BundleList const & row_bundles = _matrix->visible_rows()->bundles();
66 PortGroup::BundleList const & column_bundles = _matrix->visible_columns()->bundles();
68 uint32_t x = 0;
70 /* VERTICAL GRID LINES */
72 set_source_rgb (cr, grid_colour());
73 uint32_t N = 0;
75 for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
77 cairo_set_line_width (cr, thick_grid_line_width());
78 cairo_move_to (cr, x, 0);
79 cairo_line_to (cr, x, _height);
80 cairo_stroke (cr);
82 if (!_matrix->show_only_bundles()) {
83 cairo_set_line_width (cr, thin_grid_line_width());
84 for (uint32_t j = 0; j < _matrix->count_of_our_type ((*i)->bundle->nchannels()); ++j) {
85 x += grid_spacing ();
86 cairo_move_to (cr, x, 0);
87 cairo_line_to (cr, x, _height);
88 cairo_stroke (cr);
91 } else {
93 x += grid_spacing ();
97 ++N;
100 uint32_t y = 0;
102 /* HORIZONTAL GRID LINES */
104 N = 0;
105 for (PortGroup::BundleList::const_iterator i = row_bundles.begin(); i != row_bundles.end(); ++i) {
107 cairo_set_line_width (cr, thick_grid_line_width());
108 cairo_move_to (cr, 0, y);
109 cairo_line_to (cr, _width, y);
110 cairo_stroke (cr);
112 if (!_matrix->show_only_bundles()) {
113 cairo_set_line_width (cr, thin_grid_line_width());
114 for (uint32_t j = 0; j < _matrix->count_of_our_type ((*i)->bundle->nchannels()); ++j) {
115 y += grid_spacing ();
116 cairo_move_to (cr, 0, y);
117 cairo_line_to (cr, _width, y);
118 cairo_stroke (cr);
121 } else {
123 y += grid_spacing ();
127 ++N;
130 /* ASSOCIATION INDICATORS and NON-CONNECTABLE INDICATORS */
132 /* we draw a grey square in a matrix box if the two ports that intersect at that box
133 cannot be connected because they are of different types (MIDI vs. audio)
136 uint32_t bx = 0;
137 uint32_t by = 0;
139 if (_matrix->show_only_bundles()) {
141 for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
142 by = 0;
144 for (PortGroup::BundleList::const_iterator j = row_bundles.begin(); j != row_bundles.end(); ++j) {
146 PortMatrixNode::State s = _matrix->get_association (PortMatrixNode (
147 ARDOUR::BundleChannel ((*j)->bundle, 0),
148 ARDOUR::BundleChannel ((*i)->bundle, 0)
150 switch (s) {
151 case PortMatrixNode::ASSOCIATED:
152 draw_association_indicator (cr, bx, by);
153 break;
154 case PortMatrixNode::PARTIAL:
155 draw_association_indicator (cr, bx, by, 0.5);
156 break;
157 default:
158 break;
161 by += grid_spacing();
164 bx += grid_spacing();
168 } else {
170 for (PortGroup::BundleList::const_iterator i = column_bundles.begin(); i != column_bundles.end(); ++i) {
171 by = 0;
173 for (PortGroup::BundleList::const_iterator j = row_bundles.begin(); j != row_bundles.end(); ++j) {
175 x = bx;
176 for (uint32_t k = 0; k < (*i)->bundle->nchannels().n_total(); ++k) {
178 y = by;
179 for (uint32_t l = 0; l < (*j)->bundle->nchannels().n_total(); ++l) {
181 if (!_matrix->should_show ((*i)->bundle->channel_type(k)) || !_matrix->should_show ((*j)->bundle->channel_type(l))) {
182 continue;
185 ARDOUR::BundleChannel c[2];
186 c[_matrix->column_index()] = ARDOUR::BundleChannel ((*i)->bundle, k);
187 c[_matrix->row_index()] = ARDOUR::BundleChannel ((*j)->bundle, l);
189 if (c[0].bundle->channel_type (c[0].channel) != c[1].bundle->channel_type (c[1].channel)) {
190 /* these two channels are of different types */
191 draw_non_connectable_indicator (cr, x, y);
192 } else {
193 /* these two channels might be associated */
194 PortMatrixNode::State const s = _matrix->get_state (c);
196 switch (s) {
197 case PortMatrixNode::ASSOCIATED:
198 draw_association_indicator (cr, x, y);
199 break;
201 case PortMatrixNode::NOT_ASSOCIATED:
202 break;
204 default:
205 break;
209 y += grid_spacing();
212 x += grid_spacing();
215 by += _matrix->count_of_our_type ((*j)->bundle->nchannels()) * grid_spacing();
218 bx += _matrix->count_of_our_type ((*i)->bundle->nchannels()) * grid_spacing();
223 void
224 PortMatrixGrid::draw_association_indicator (cairo_t* cr, uint32_t x, uint32_t y, double p)
226 set_source_rgba (cr, association_colour(), 0.5);
228 cairo_arc (
230 x + grid_spacing() / 2,
231 y + grid_spacing() / 2,
232 (grid_spacing() - (2 * connection_indicator_pad())) / 2,
234 p * 2 * M_PI
237 cairo_fill (cr);
240 void
241 PortMatrixGrid::draw_empty_square (cairo_t* cr, uint32_t x, uint32_t y)
243 set_source_rgb (cr, background_colour());
244 cairo_rectangle (
246 x + thick_grid_line_width(),
247 y + thick_grid_line_width(),
248 grid_spacing() - 2 * thick_grid_line_width(),
249 grid_spacing() - 2 * thick_grid_line_width()
251 cairo_fill (cr);
254 /** Draw a square to indicate that two channels in a matrix cannot be associated
255 * with each other.
257 void
258 PortMatrixGrid::draw_non_connectable_indicator (cairo_t* cr, uint32_t x, uint32_t y)
260 set_source_rgb (cr, non_connectable_colour ());
261 cairo_rectangle (
263 x + thick_grid_line_width(),
264 y + thick_grid_line_width(),
265 grid_spacing() - 2 * thick_grid_line_width(),
266 grid_spacing() - 2 * thick_grid_line_width()
268 cairo_fill (cr);
271 PortMatrixNode
272 PortMatrixGrid::position_to_node (double x, double y) const
274 return PortMatrixNode (
275 position_to_channel (y, x, _matrix->visible_rows()),
276 position_to_channel (x, y, _matrix->visible_columns())
280 void
281 PortMatrixGrid::button_press (double x, double y, int b, uint32_t t, guint)
283 ARDOUR::BundleChannel const px = position_to_channel (x, y, _matrix->visible_columns());
284 ARDOUR::BundleChannel const py = position_to_channel (y, x, _matrix->visible_rows());
286 if (b == 1) {
288 _dragging = true;
289 _drag_valid = (px.bundle && py.bundle);
291 _moved = false;
292 _drag_start_x = x / grid_spacing ();
293 _drag_start_y = y / grid_spacing ();
295 } else if (b == 3) {
297 _matrix->popup_menu (px, py, t);
302 void
303 PortMatrixGrid::set_association (PortMatrixNode node, bool s)
305 if (_matrix->show_only_bundles()) {
307 for (uint32_t i = 0; i < node.column.bundle->nchannels().n_total(); ++i) {
308 for (uint32_t j = 0; j < node.row.bundle->nchannels().n_total(); ++j) {
310 if (!_matrix->should_show (node.column.bundle->channel_type(i)) || !_matrix->should_show (node.row.bundle->channel_type(j))) {
311 continue;
314 ARDOUR::BundleChannel c[2];
315 c[_matrix->column_index()] = ARDOUR::BundleChannel (node.column.bundle, i);
316 c[_matrix->row_index()] = ARDOUR::BundleChannel (node.row.bundle, j);
317 _matrix->set_state (c, s && (i == j));
321 } else {
323 if (node.row.bundle && node.column.bundle) {
325 ARDOUR::BundleChannel c[2];
326 c[_matrix->row_index()] = node.row;
327 c[_matrix->column_index()] = node.column;
328 _matrix->set_state (c, s);
333 void
334 PortMatrixGrid::button_release (double x, double y, int b, uint32_t /*t*/, guint s)
336 if (b == 1) {
338 if (x != -1) {
340 if (_dragging && _moved) {
342 if (_drag_valid) {
343 list<PortMatrixNode> const p = nodes_on_line (_drag_start_x, _drag_start_y, _drag_x, _drag_y);
345 if (!p.empty()) {
346 PortMatrixNode::State const s = _matrix->get_association (p.front());
347 for (list<PortMatrixNode>::const_iterator i = p.begin(); i != p.end(); ++i) {
348 set_association (*i, toggle_state (s));
353 } else {
355 if (Keyboard::modifier_state_equals (s, Keyboard::PrimaryModifier)) {
356 /* associate/disassociate things diagonally down and right until we run out */
357 PortMatrixNode::State s = (PortMatrixNode::State) 0;
358 while (1) {
359 PortMatrixNode const n = position_to_node (x, y);
360 if (n.row.bundle && n.column.bundle) {
361 if (s == (PortMatrixNode::State) 0) {
362 s = _matrix->get_association (n);
364 set_association (n, toggle_state (s));
365 } else {
366 break;
368 x += grid_spacing ();
369 y += grid_spacing ();
372 } else {
374 PortMatrixNode const n = position_to_node (x, y);
375 if (n.row.bundle && n.column.bundle) {
376 PortMatrixNode::State const s = _matrix->get_association (n);
377 set_association (n, toggle_state (s));
382 require_render ();
385 _body->queue_draw ();
388 _dragging = false;
392 void
393 PortMatrixGrid::draw_extra (cairo_t* cr)
395 set_source_rgba (cr, mouseover_line_colour(), 0.3);
396 cairo_set_line_width (cr, mouseover_line_width());
398 list<PortMatrixNode> const m = _body->mouseover ();
400 for (list<PortMatrixNode>::const_iterator i = m.begin(); i != m.end(); ++i) {
402 double const x = component_to_parent_x (channel_to_position (i->column, _matrix->visible_columns()) * grid_spacing()) + grid_spacing() / 2;
403 double const y = component_to_parent_y (channel_to_position (i->row, _matrix->visible_rows()) * grid_spacing()) + grid_spacing() / 2;
405 if (i->row.bundle && i->column.bundle) {
407 cairo_move_to (cr, x, y);
408 if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
409 cairo_line_to (cr, component_to_parent_x (0), y);
410 } else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
411 cairo_line_to (cr, _parent_rectangle.get_x() + _parent_rectangle.get_width(), y);
413 cairo_stroke (cr);
415 cairo_move_to (cr, x, y);
416 if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
417 cairo_line_to (cr, x, _parent_rectangle.get_y() + _parent_rectangle.get_height());
418 } else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
419 cairo_line_to (cr, x, component_to_parent_y (0));
421 cairo_stroke (cr);
425 if (_dragging && _drag_valid && _moved) {
427 list<PortMatrixNode> const p = nodes_on_line (_drag_start_x, _drag_start_y, _drag_x, _drag_y);
429 if (!p.empty()) {
431 bool const s = toggle_state (_matrix->get_association (p.front()));
433 for (list<PortMatrixNode>::const_iterator i = p.begin(); i != p.end(); ++i) {
434 if (s) {
435 draw_association_indicator (
437 component_to_parent_x (channel_to_position (i->column, _matrix->visible_columns()) * grid_spacing ()),
438 component_to_parent_y (channel_to_position (i->row, _matrix->visible_rows()) * grid_spacing ())
440 } else {
441 draw_empty_square (
443 component_to_parent_x (channel_to_position (i->column, _matrix->visible_columns()) * grid_spacing ()),
444 component_to_parent_y (channel_to_position (i->row, _matrix->visible_rows()) * grid_spacing ())
450 set_source_rgba (cr, association_colour (), 0.3);
452 cairo_move_to (
454 component_to_parent_x (_drag_start_x * grid_spacing() + grid_spacing() / 2),
455 component_to_parent_y (_drag_start_y * grid_spacing() + grid_spacing() / 2)
458 cairo_line_to (
460 component_to_parent_x (_drag_x * grid_spacing() + grid_spacing() / 2),
461 component_to_parent_y (_drag_y * grid_spacing() + grid_spacing() / 2)
464 cairo_stroke (cr);
469 void
470 PortMatrixGrid::mouseover_changed (list<PortMatrixNode> const & old)
472 queue_draw_for (old);
473 queue_draw_for (_body->mouseover());
476 void
477 PortMatrixGrid::motion (double x, double y)
479 _body->set_mouseover (position_to_node (x, y));
481 int const px = x / grid_spacing ();
482 int const py = y / grid_spacing ();
484 if (_dragging && !_moved && ( (px != _drag_start_x || py != _drag_start_x) )) {
485 _moved = true;
488 if (_dragging && _drag_valid && _moved) {
489 _drag_x = px;
490 _drag_y = py;
491 _body->queue_draw ();
495 void
496 PortMatrixGrid::queue_draw_for (list<PortMatrixNode> const &n)
498 for (list<PortMatrixNode>::const_iterator i = n.begin(); i != n.end(); ++i) {
500 if (i->row.bundle) {
502 double const y = channel_to_position (i->row, _matrix->visible_rows()) * grid_spacing ();
503 _body->queue_draw_area (
504 _parent_rectangle.get_x(),
505 component_to_parent_y (y),
506 _parent_rectangle.get_width(),
507 grid_spacing()
511 if (i->column.bundle) {
513 double const x = channel_to_position (i->column, _matrix->visible_columns()) * grid_spacing ();
515 _body->queue_draw_area (
516 component_to_parent_x (x),
517 _parent_rectangle.get_y(),
518 grid_spacing(),
519 _parent_rectangle.get_height()
525 double
526 PortMatrixGrid::component_to_parent_x (double x) const
528 return x - _body->xoffset() + _parent_rectangle.get_x();
531 double
532 PortMatrixGrid::parent_to_component_x (double x) const
534 return x + _body->xoffset() - _parent_rectangle.get_x();
537 double
538 PortMatrixGrid::component_to_parent_y (double y) const
540 return y - _body->yoffset() + _parent_rectangle.get_y();
543 double
544 PortMatrixGrid::parent_to_component_y (double y) const
546 return y + _body->yoffset() - _parent_rectangle.get_y();
549 list<PortMatrixNode>
550 PortMatrixGrid::nodes_on_line (int x0, int y0, int x1, int y1) const
552 list<PortMatrixNode> p;
554 bool const steep = abs (y1 - y0) > abs (x1 - x0);
555 if (steep) {
556 int tmp = x0;
557 x0 = y0;
558 y0 = tmp;
560 tmp = y1;
561 y1 = x1;
562 x1 = tmp;
565 if (x0 > x1) {
566 int tmp = x0;
567 x0 = x1;
568 x1 = tmp;
570 tmp = y0;
571 y0 = y1;
572 y1 = tmp;
575 int dx = x1 - x0;
576 int dy = abs (y1 - y0);
578 double err = 0;
579 double derr = double (dy) / dx;
581 int y = y0;
582 int const ystep = y0 < y1 ? 1 : -1;
584 for (int x = x0; x <= x1; ++x) {
585 if (steep) {
586 PortMatrixNode n = position_to_node (y * grid_spacing (), x * grid_spacing ());
587 if (n.row.bundle && n.column.bundle) {
588 p.push_back (n);
590 } else {
591 PortMatrixNode n = position_to_node (x * grid_spacing (), y * grid_spacing ());
592 if (n.row.bundle && n.column.bundle) {
593 p.push_back (n);
597 err += derr;
599 if (err >= 0.5) {
600 y += ystep;
601 err -= 1;
605 return p;
608 bool
609 PortMatrixGrid::toggle_state (PortMatrixNode::State s) const
611 return (s == PortMatrixNode::NOT_ASSOCIATED || s == PortMatrixNode::PARTIAL);