2 Copyright (C) 2002 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.
25 #include <gtkmm/menu.h>
27 #include <pbd/error.h>
28 #include <ardour/panner.h>
29 #include <gtkmm2ext/gtk_ui.h>
33 #include "gui_thread.h"
40 using namespace ARDOUR;
43 Panner2d::Target::Target (float xa, float ya, const char *txt)
44 : x (xa, 0.0, 1.0, 0.01, 0.1)
45 , y (ya, 0.0, 1.0, 0.01, 0.1)
46 , azimuth (M_PI/2.0, 0.0, 2.0 * M_PI, 0.1, 0.5)
47 , text (txt ? strdup (txt) : 0)
49 azimuth.set_value ((random() / (double) INT_MAX) * (2.0 * M_PI));
52 Panner2d::Target::~Target ()
60 Panner2d::Target::set_text (const char* txt)
68 Panner2d::Panner2d (Panner& p, int32_t h)
69 : panner (p), width (0), height (h)
75 panner.StateChanged.connect (mem_fun(*this, &Panner2d::handle_state_change));
76 panner.Changed.connect (mem_fun(*this, &Panner2d::handle_position_change));
79 set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
84 for (Targets::iterator i = targets.begin(); i != targets.end(); ++i) {
90 Panner2d::reset (uint32_t n_inputs)
92 Targets::size_type existing_pucks = pucks.size();
96 while (pucks.size() < n_inputs) {
97 add_puck ("", 0.0, 0.0);
100 while (pucks.size() > n_inputs) {
101 pucks.erase (pucks.begin());
104 for (Targets::iterator x = pucks.begin(); x != pucks.end(); ++x) {
105 (*x).second->visible = false;
113 pucks[0]->set_text ("");
114 pucks[0]->x.set_value (0.0);
115 pucks[0]->y.set_value (0.5);
116 pucks[0]->visible = true;
120 pucks[0]->set_text ("R");
121 if (existing_pucks < 0) {
122 pucks[0]->x.set_value (0.5f);
123 pucks[1]->y.set_value (0.25f);
125 pucks[0]->visible = true;
126 pucks[1]->set_text ("L");
127 if (existing_pucks < 2) {
128 pucks[1]->x.set_value (0.25f);
129 pucks[1]->y.set_value (0.5f);
131 pucks[1]->visible = true;
135 for (uint32_t i = 0; i < n_inputs; ++i) {
137 snprintf (buf, sizeof (buf), "%" PRIu32, i);
138 pucks[i]->set_text (buf);
140 if (existing_pucks < i) {
142 panner.streampanner (i).get_position (x, y);
143 pucks[i]->x.set_value (x);
144 pucks[i]->y.set_value (y);
147 pucks[i]->visible = true;
152 /* add all outputs */
154 while (targets.size() < panner.nouts()) {
155 add_target (0.0, 0.0);
158 while (targets.size() > panner.nouts()) {
159 targets.erase (targets.begin());
162 for (Targets::iterator x = targets.begin(); x != targets.end(); ++x) {
163 (*x).second->visible = false;
166 for (uint32_t n = 0; n < panner.nouts(); ++n) {
169 snprintf (buf, sizeof (buf), "%d", n+1);
170 targets[n]->set_text (buf);
171 targets[n]->x.set_value (panner.output(n).x);
172 targets[n]->y.set_value (panner.output(n).y);
173 targets[n]->visible = true;
176 allow_x_motion (true);
177 allow_y_motion (true);
178 allow_target_motion (true);
184 Panner2d::azimuth (uint32_t which)
186 assert (which < pucks.size());
187 return pucks[which]->azimuth;
191 Panner2d::on_size_allocate (Gtk::Allocation& alloc)
193 width = alloc.get_width();
194 height = alloc.get_height();
201 DrawingArea::on_size_allocate (alloc);
205 Panner2d::add_puck (const char* text, float x, float y)
207 Target* puck = new Target (x, y, text);
209 pair<int,Target *> newpair;
210 newpair.first = pucks.size();
211 newpair.second = puck;
213 pucks.insert (newpair);
214 puck->visible = true;
220 Panner2d::add_target (float x, float y)
222 Target *target = new Target (x, y, "");
224 pair<int,Target *> newpair;
225 newpair.first = targets.size();
226 newpair.second = target;
228 targets.insert (newpair);
229 target->visible = true;
232 return newpair.first;
236 Panner2d::drop_targets ()
238 for (Targets::iterator i = targets.begin(); i != targets.end(); ) {
240 Targets::iterator tmp;
255 Panner2d::remove_target (int which)
257 Targets::iterator i = targets.find (which);
259 if (i != targets.end()) {
267 Panner2d::handle_state_change ()
269 ENSURE_GUI_THREAD(mem_fun(*this, &Panner2d::handle_state_change));
275 Panner2d::handle_position_change ()
278 ENSURE_GUI_THREAD(mem_fun(*this, &Panner2d::handle_position_change));
280 for (n = 0; n < pucks.size(); ++n) {
282 panner.streampanner(n).get_position (x, y);
283 pucks[n]->x.set_value (x);
284 pucks[n]->y.set_value (y);
287 for (n = 0; n < targets.size(); ++n) {
288 targets[n]->x.set_value (panner.output(n).x);
289 targets[n]->y.set_value (panner.output(n).y);
296 Panner2d::move_target (int which, float x, float y)
298 Targets::iterator i = targets.find (which);
305 if (i != targets.end()) {
307 target->x.set_value (x);
308 target->y.set_value (y);
315 Panner2d::move_puck (int which, float x, float y)
317 Targets::iterator i = pucks.find (which);
320 if (i != pucks.end()) {
322 target->x.set_value (x);
323 target->y.set_value (y);
330 Panner2d::show_puck (int which)
332 Targets::iterator i = pucks.find (which);
334 if (i != pucks.end()) {
335 Target* puck = i->second;
336 if (!puck->visible) {
337 puck->visible = true;
344 Panner2d::hide_puck (int which)
346 Targets::iterator i = pucks.find (which);
348 if (i != pucks.end()) {
349 Target* puck = i->second;
350 if (!puck->visible) {
351 puck->visible = false;
358 Panner2d::show_target (int which)
360 Targets::iterator i = targets.find (which);
361 if (i != targets.end()) {
362 if (!i->second->visible) {
363 i->second->visible = true;
370 Panner2d::hide_target (int which)
372 Targets::iterator i = targets.find (which);
373 if (i != targets.end()) {
374 if (i->second->visible) {
375 i->second->visible = false;
382 Panner2d::find_closest_object (gdouble x, gdouble y, int& which, bool& is_puck) const
389 float best_distance = FLT_MAX;
398 for (Targets::const_iterator i = targets.begin(); i != targets.end(); ++i, ++which) {
399 candidate = i->second;
401 cx = candidate->x.get_value();
402 cy = candidate->y.get_value();
404 distance = sqrt ((cx - efx) * (cx - efx) +
405 (cy - efy) * (cy - efy));
407 if (distance < best_distance) {
409 best_distance = distance;
413 for (Targets::const_iterator i = pucks.begin(); i != pucks.end(); ++i, ++pwhich) {
414 candidate = i->second;
416 cx = candidate->x.get_value();
417 cy = candidate->y.get_value();
419 distance = sqrt ((cx - efx) * (cx - efx) +
420 (cy - efy) * (cy - efy));
422 if (distance < best_distance) {
424 best_distance = distance;
434 Panner2d::on_motion_notify_event (GdkEventMotion *ev)
437 GdkModifierType state;
440 gdk_window_get_pointer (ev->window, &x, &y, &state);
442 x = (int) floor (ev->x);
443 y = (int) floor (ev->y);
444 state = (GdkModifierType) ev->state;
447 return handle_motion (x, y, state);
450 Panner2d::on_expose_event (GdkEventExpose *event)
456 cr = gdk_cairo_create (get_window()->gobj());
458 cairo_set_line_width (cr, 1.0);
460 cairo_rectangle (cr, event->area.x, event->area.y, event->area.width, event->area.height);
461 if (!panner.bypassed()) {
462 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, 1.0);
464 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, 0.2);
466 cairo_fill_preserve (cr);
470 cairo_translate (cr, 10.0, 10.0);
473 cairo_set_source_rgb (cr, 0.0, 0.1, 0.7);
474 cairo_move_to (cr, 0.5, height/2.0+0.5);
475 cairo_line_to (cr, height+0.5, height/2+0.5);
478 cairo_move_to (cr, height/2+0.5, 0.5);
479 cairo_line_to (cr, height/2+0.5, height+0.5);
482 cairo_arc (cr, height/2, height/2, height/2, 0, 2.0 * M_PI);
485 if (!panner.bypassed()) {
488 cairo_select_font_face (cr, "sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
491 cairo_set_font_size (cr, 10);
494 cairo_set_font_size (cr, 16);
498 for (Targets::iterator i = pucks.begin(); i != pucks.end(); ++i) {
500 Target* puck = i->second;
505 fx = min (puck->x.get_value(), 1.0);
506 fx = max (fx, -1.0f);
507 x = (gint) floor (width * fx - 4);
509 fy = min (puck->y.get_value(), 1.0);
510 fy = max (fy, -1.0f);
511 y = (gint) floor (height * fy - 4);
513 cairo_arc (cr, x, y, arc_radius, 0, 2.0 * M_PI);
514 cairo_set_source_rgb (cr, 0.8, 0.2, 0.1);
515 cairo_close_path (cr);
520 if (height > 100.0f) {
527 cairo_translate (cr, x, y);
528 cairo_rotate (cr, puck->azimuth.get_value());
530 /* horizontal left-to-right line (rotation will rotate it, duh) */
536 cairo_set_line_width (cr, 4.0);
537 cairo_move_to (cr, 0.0, 0.0);
538 cairo_line_to (cr, endx, endy);
543 cairo_move_to (cr, endx - 10.0, endy + 10.0);
544 cairo_line_to (cr, endx, endy);
545 cairo_line_to (cr, endx - 10.0, endy - 10.0);
546 cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
552 cairo_move_to (cr, x + 6, y + 6);
553 cairo_show_text (cr, puck->text);
557 /* redraw any visible targets */
561 for (Targets::iterator i = targets.begin(); i != targets.end(); ++i) {
562 Target *target = i->second;
566 if (target->visible) {
568 fx = min (target->x.get_value(), 1.0);
569 fx = max (fx, -1.0f);
570 x = (gint) floor (width * fx);
572 fy = min (target->y.get_value(), 1.0);
573 fy = max (fy, -1.0f);
574 y = (gint) floor (height * fy);
576 snprintf (buf, sizeof (buf), "%d", n);
578 cairo_set_source_rgb (cr, 0.0, 0.8, 0.1);
579 cairo_rectangle (cr, x-2, y-2, 4, 4);
581 cairo_move_to (cr, x+6, y+6);
582 cairo_show_text (cr, buf);
593 Panner2d::on_button_press_event (GdkEventButton *ev)
595 GdkModifierType state;
597 if (ev->type == GDK_2BUTTON_PRESS && ev->button == 1) {
601 switch (ev->button) {
604 drag_target = find_closest_object (ev->x, ev->y, drag_index, drag_is_puck);
605 drag_x = (int) floor (ev->x);
606 drag_y = (int) floor (ev->y);
607 state = (GdkModifierType) ev->state;
609 return handle_motion (drag_x, drag_y, state);
620 Panner2d::on_button_release_event (GdkEventButton *ev)
623 GdkModifierType state;
626 switch (ev->button) {
628 x = (int) floor (ev->x);
629 y = (int) floor (ev->y);
630 state = (GdkModifierType) ev->state;
632 if (drag_is_puck && (Keyboard::modifier_state_contains (state, Keyboard::TertiaryModifier))) {
635 for (Targets::iterator i = pucks.begin(); i != pucks.end(); ++i) {
636 Target* puck = i->second;
638 /* XXX DO SOMETHING TO SET PUCK BACK TO "normal" */
646 ret = handle_motion (x, y, state);
653 x = (int) floor (ev->x);
654 y = (int) floor (ev->y);
655 state = (GdkModifierType) ev->state;
657 if (drag_is_puck && (Keyboard::modifier_state_contains (state, Keyboard::TertiaryModifier))) {
661 ret = handle_motion (x, y, state);
676 Panner2d::handle_motion (gint evx, gint evy, GdkModifierType state)
678 if (drag_target == 0) {
682 if ((state & (GDK_BUTTON1_MASK|GDK_BUTTON2_MASK)) == 0) {
687 bool need_move = false;
689 if (!drag_is_puck && !allow_target) {
690 cerr << "dip = " << drag_is_puck << " at = " << allow_target << endl;
694 if (state & GDK_BUTTON1_MASK && !(state & GDK_BUTTON2_MASK)) {
696 if (allow_x || !drag_is_puck) {
698 x = min (evx, width - 1);
700 new_x = (float) x / (width - 1);
701 if (new_x != drag_target->x.get_value()) {
702 drag_target->x.set_value (new_x);
707 if (allow_y || drag_is_puck) {
709 y = min (evy, height - 1);
711 new_y = (float) y / (height - 1);
712 if (new_y != drag_target->y.get_value()) {
713 drag_target->y.set_value (new_y);
722 panner.streampanner(drag_index).set_position (drag_target->x.get_value(), drag_target->y.get_value(), false);
726 TargetMoved (drag_index);
733 } else if ((state & GDK_BUTTON2_MASK) && !(state & GDK_BUTTON1_MASK)) {
739 int xdelta = drag_x - evx;
740 int ydelta = drag_x - evy;
742 drag_target->azimuth.set_value (drag_target->azimuth.get_value() + (2 * M_PI) * ((float)ydelta)/height * ((float) -xdelta)/height);
750 Panner2d::toggle_bypass ()
752 panner.set_bypassed (!panner.bypassed());
756 Panner2d::allow_x_motion (bool yn)
762 Panner2d::allow_target_motion (bool yn)
768 Panner2d::allow_y_motion (bool yn)
773 Panner2dWindow::Panner2dWindow (Panner&p, int32_t h, uint32_t inputs)
775 , reset_button (_("Reset"))
776 , bypass_button (_("Bypass"))
777 , mute_button (_("Mute"))
779 widget.set_name ("MixerPanZone");
781 set_title (_("Panner"));
782 widget.set_size_request (h, h);
784 button_box.set_spacing (6);
785 button_box.pack_start (reset_button, false, false);
786 button_box.pack_start (bypass_button, false, false);
787 button_box.pack_start (mute_button, false, false);
789 spinner_box.set_spacing (6);
790 left_side.set_spacing (6);
792 left_side.pack_start (button_box, false, false);
793 left_side.pack_start (spinner_box, false, false);
795 reset_button.show ();
796 bypass_button.show ();
802 hpacker.set_spacing (6);
803 hpacker.set_border_width (12);
804 hpacker.pack_start (widget, false, false);
805 hpacker.pack_start (left_side, false, false);
814 Panner2dWindow::reset (uint32_t n_inputs)
816 widget.reset (n_inputs);
818 while (spinners.size() < n_inputs) {
819 spinners.push_back (new Gtk::SpinButton (widget.azimuth (spinners.size())));
820 spinner_box.pack_start (*spinners.back(), false, false);
821 spinners.back()->set_digits (4);
822 spinners.back()->show ();
825 while (spinners.size() > n_inputs) {
826 spinner_box.remove (*spinners.back());
827 delete spinners.back();
828 spinners.erase (--spinners.end());