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 (boost::shared_ptr<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 pucks[0]->visible = true;
122 pucks[1]->set_text ("L");
123 if (existing_pucks < 2) {
124 pucks[1]->x.set_value (0.25f);
125 pucks[1]->y.set_value (0.5f);
127 pucks[1]->visible = true;
131 for (uint32_t i = 0; i < n_inputs; ++i) {
133 snprintf (buf, sizeof (buf), "%" PRIu32, i);
134 pucks[i]->set_text (buf);
136 if (existing_pucks < i) {
138 panner->streampanner (i).get_position (x, y);
139 pucks[i]->x.set_value (x);
140 pucks[i]->y.set_value (y);
143 pucks[i]->visible = true;
148 /* add all outputs */
150 while (targets.size() < panner->nouts()) {
151 add_target (0.0, 0.0);
154 while (targets.size() > panner->nouts()) {
155 targets.erase (targets.begin());
158 for (Targets::iterator x = targets.begin(); x != targets.end(); ++x) {
159 (*x).second->visible = false;
162 for (uint32_t n = 0; n < panner->nouts(); ++n) {
165 snprintf (buf, sizeof (buf), "%d", n+1);
166 targets[n]->set_text (buf);
167 targets[n]->x.set_value (panner->output(n).x);
168 targets[n]->y.set_value (panner->output(n).y);
169 targets[n]->visible = true;
172 allow_x_motion (true);
173 allow_y_motion (true);
174 allow_target_motion (true);
180 Panner2d::azimuth (uint32_t which)
182 assert (which < pucks.size());
183 return pucks[which]->azimuth;
187 Panner2d::on_size_allocate (Gtk::Allocation& alloc)
189 width = alloc.get_width();
190 height = alloc.get_height();
197 DrawingArea::on_size_allocate (alloc);
201 Panner2d::add_puck (const char* text, float x, float y)
203 Target* puck = new Target (x, y, text);
205 pair<int,Target *> newpair;
206 newpair.first = pucks.size();
207 newpair.second = puck;
209 pucks.insert (newpair);
210 puck->visible = true;
216 Panner2d::add_target (float x, float y)
218 Target *target = new Target (x, y, "");
220 pair<int,Target *> newpair;
221 newpair.first = targets.size();
222 newpair.second = target;
224 targets.insert (newpair);
225 target->visible = true;
228 return newpair.first;
232 Panner2d::drop_targets ()
234 for (Targets::iterator i = targets.begin(); i != targets.end(); ) {
236 Targets::iterator tmp;
251 Panner2d::remove_target (int which)
253 Targets::iterator i = targets.find (which);
255 if (i != targets.end()) {
263 Panner2d::handle_state_change ()
265 ENSURE_GUI_THREAD(mem_fun(*this, &Panner2d::handle_state_change));
271 Panner2d::handle_position_change ()
274 ENSURE_GUI_THREAD(mem_fun(*this, &Panner2d::handle_position_change));
276 for (n = 0; n < pucks.size(); ++n) {
278 panner->streampanner(n).get_position (x, y);
279 pucks[n]->x.set_value (x);
280 pucks[n]->y.set_value (y);
283 for (n = 0; n < targets.size(); ++n) {
284 targets[n]->x.set_value (panner->output(n).x);
285 targets[n]->y.set_value (panner->output(n).y);
292 Panner2d::move_target (int which, float x, float y)
294 Targets::iterator i = targets.find (which);
301 if (i != targets.end()) {
303 target->x.set_value (x);
304 target->y.set_value (y);
311 Panner2d::move_puck (int which, float x, float y)
313 Targets::iterator i = pucks.find (which);
316 if (i != pucks.end()) {
318 target->x.set_value (x);
319 target->y.set_value (y);
326 Panner2d::show_puck (int which)
328 Targets::iterator i = pucks.find (which);
330 if (i != pucks.end()) {
331 Target* puck = i->second;
332 if (!puck->visible) {
333 puck->visible = true;
340 Panner2d::hide_puck (int which)
342 Targets::iterator i = pucks.find (which);
344 if (i != pucks.end()) {
345 Target* puck = i->second;
346 if (!puck->visible) {
347 puck->visible = false;
354 Panner2d::show_target (int which)
356 Targets::iterator i = targets.find (which);
357 if (i != targets.end()) {
358 if (!i->second->visible) {
359 i->second->visible = true;
366 Panner2d::hide_target (int which)
368 Targets::iterator i = targets.find (which);
369 if (i != targets.end()) {
370 if (i->second->visible) {
371 i->second->visible = false;
378 Panner2d::find_closest_object (gdouble x, gdouble y, int& which, bool& is_puck) const
385 float best_distance = FLT_MAX;
394 for (Targets::const_iterator i = targets.begin(); i != targets.end(); ++i, ++which) {
395 candidate = i->second;
397 cx = candidate->x.get_value();
398 cy = candidate->y.get_value();
400 distance = sqrt ((cx - efx) * (cx - efx) +
401 (cy - efy) * (cy - efy));
403 if (distance < best_distance) {
405 best_distance = distance;
409 for (Targets::const_iterator i = pucks.begin(); i != pucks.end(); ++i, ++pwhich) {
410 candidate = i->second;
412 cx = candidate->x.get_value();
413 cy = candidate->y.get_value();
415 distance = sqrt ((cx - efx) * (cx - efx) +
416 (cy - efy) * (cy - efy));
418 if (distance < best_distance) {
420 best_distance = distance;
430 Panner2d::on_motion_notify_event (GdkEventMotion *ev)
433 GdkModifierType state;
436 gdk_window_get_pointer (ev->window, &x, &y, &state);
438 x = (int) floor (ev->x);
439 y = (int) floor (ev->y);
440 state = (GdkModifierType) ev->state;
443 return handle_motion (x, y, state);
446 Panner2d::on_expose_event (GdkEventExpose *event)
452 cr = gdk_cairo_create (get_window()->gobj());
454 cairo_set_line_width (cr, 1.0);
456 cairo_rectangle (cr, event->area.x, event->area.y, event->area.width, event->area.height);
457 if (!panner->bypassed()) {
458 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, 1.0);
460 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, 0.2);
462 cairo_fill_preserve (cr);
466 cairo_translate (cr, 10.0, 10.0);
469 cairo_set_source_rgb (cr, 0.0, 0.1, 0.7);
470 cairo_move_to (cr, 0.5, height/2.0+0.5);
471 cairo_line_to (cr, height+0.5, height/2+0.5);
474 cairo_move_to (cr, height/2+0.5, 0.5);
475 cairo_line_to (cr, height/2+0.5, height+0.5);
478 cairo_arc (cr, height/2, height/2, height/2, 0, 2.0 * M_PI);
481 if (!panner->bypassed()) {
484 cairo_select_font_face (cr, "sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
487 cairo_set_font_size (cr, 10);
490 cairo_set_font_size (cr, 16);
494 for (Targets::iterator i = pucks.begin(); i != pucks.end(); ++i) {
496 Target* puck = i->second;
501 fx = min (puck->x.get_value(), 1.0);
502 fx = max (fx, -1.0f);
503 x = (gint) floor (width * fx - 4);
505 fy = min (puck->y.get_value(), 1.0);
506 fy = max (fy, -1.0f);
507 y = (gint) floor (height * fy - 4);
509 cairo_arc (cr, x, y, arc_radius, 0, 2.0 * M_PI);
510 cairo_set_source_rgb (cr, 0.8, 0.2, 0.1);
511 cairo_close_path (cr);
516 if (height > 100.0f) {
523 cairo_translate (cr, x, y);
524 cairo_rotate (cr, puck->azimuth.get_value());
526 /* horizontal left-to-right line (rotation will rotate it, duh) */
532 cairo_set_line_width (cr, 4.0);
533 cairo_move_to (cr, 0.0, 0.0);
534 cairo_line_to (cr, endx, endy);
539 cairo_move_to (cr, endx - 10.0, endy + 10.0);
540 cairo_line_to (cr, endx, endy);
541 cairo_line_to (cr, endx - 10.0, endy - 10.0);
542 cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
548 cairo_move_to (cr, x + 6, y + 6);
549 cairo_show_text (cr, puck->text);
553 /* redraw any visible targets */
557 for (Targets::iterator i = targets.begin(); i != targets.end(); ++i) {
558 Target *target = i->second;
562 if (target->visible) {
564 fx = min (target->x.get_value(), 1.0);
565 fx = max (fx, -1.0f);
566 x = (gint) floor (width * fx);
568 fy = min (target->y.get_value(), 1.0);
569 fy = max (fy, -1.0f);
570 y = (gint) floor (height * fy);
572 snprintf (buf, sizeof (buf), "%d", n);
574 cairo_set_source_rgb (cr, 0.0, 0.8, 0.1);
575 cairo_rectangle (cr, x-2, y-2, 4, 4);
577 cairo_move_to (cr, x+6, y+6);
578 cairo_show_text (cr, buf);
589 Panner2d::on_button_press_event (GdkEventButton *ev)
591 GdkModifierType state;
593 if (ev->type == GDK_2BUTTON_PRESS && ev->button == 1) {
597 switch (ev->button) {
600 drag_target = find_closest_object (ev->x, ev->y, drag_index, drag_is_puck);
601 drag_x = (int) floor (ev->x);
602 drag_y = (int) floor (ev->y);
603 state = (GdkModifierType) ev->state;
605 return handle_motion (drag_x, drag_y, state);
616 Panner2d::on_button_release_event (GdkEventButton *ev)
619 GdkModifierType state;
622 switch (ev->button) {
624 x = (int) floor (ev->x);
625 y = (int) floor (ev->y);
626 state = (GdkModifierType) ev->state;
628 if (drag_is_puck && (Keyboard::modifier_state_contains (state, Keyboard::TertiaryModifier))) {
631 for (Targets::iterator i = pucks.begin(); i != pucks.end(); ++i) {
632 //Target* puck = i->second;
634 /* XXX DO SOMETHING TO SET PUCK BACK TO "normal" */
642 ret = handle_motion (x, y, state);
649 x = (int) floor (ev->x);
650 y = (int) floor (ev->y);
651 state = (GdkModifierType) ev->state;
653 if (drag_is_puck && (Keyboard::modifier_state_contains (state, Keyboard::TertiaryModifier))) {
657 ret = handle_motion (x, y, state);
672 Panner2d::handle_motion (gint evx, gint evy, GdkModifierType state)
674 if (drag_target == 0) {
678 if ((state & (GDK_BUTTON1_MASK|GDK_BUTTON2_MASK)) == 0) {
683 bool need_move = false;
685 if (!drag_is_puck && !allow_target) {
686 cerr << "dip = " << drag_is_puck << " at = " << allow_target << endl;
690 if (state & GDK_BUTTON1_MASK && !(state & GDK_BUTTON2_MASK)) {
692 if (allow_x || !drag_is_puck) {
694 x = min (evx, width - 1);
696 new_x = (float) x / (width - 1);
697 if (new_x != drag_target->x.get_value()) {
698 drag_target->x.set_value (new_x);
703 if (allow_y || drag_is_puck) {
705 y = min (evy, height - 1);
707 new_y = (float) y / (height - 1);
708 if (new_y != drag_target->y.get_value()) {
709 drag_target->y.set_value (new_y);
718 panner->streampanner(drag_index).set_position (
719 drag_target->x.get_value(), drag_target->y.get_value(), false);
723 TargetMoved (drag_index);
730 } else if ((state & GDK_BUTTON2_MASK) && !(state & GDK_BUTTON1_MASK)) {
736 int xdelta = drag_x - evx;
737 int ydelta = drag_x - evy;
739 drag_target->azimuth.set_value (drag_target->azimuth.get_value() + (2 * M_PI) * ((float)ydelta)/height * ((float) -xdelta)/height);
747 Panner2d::toggle_bypass ()
749 panner->set_bypassed (!panner->bypassed());
753 Panner2d::allow_x_motion (bool yn)
759 Panner2d::allow_target_motion (bool yn)
765 Panner2d::allow_y_motion (bool yn)
770 Panner2dWindow::Panner2dWindow (boost::shared_ptr<Panner> p, int32_t h, uint32_t inputs)
772 , reset_button (_("Reset"))
773 , bypass_button (_("Bypass"))
774 , mute_button (_("Mute"))
776 widget.set_name ("MixerPanZone");
778 set_title (_("Panner"));
779 widget.set_size_request (h, h);
781 button_box.set_spacing (6);
782 button_box.pack_start (reset_button, false, false);
783 button_box.pack_start (bypass_button, false, false);
784 button_box.pack_start (mute_button, false, false);
786 spinner_box.set_spacing (6);
787 left_side.set_spacing (6);
789 left_side.pack_start (button_box, false, false);
790 left_side.pack_start (spinner_box, false, false);
792 reset_button.show ();
793 bypass_button.show ();
799 hpacker.set_spacing (6);
800 hpacker.set_border_width (12);
801 hpacker.pack_start (widget, false, false);
802 hpacker.pack_start (left_side, false, false);
811 Panner2dWindow::reset (uint32_t n_inputs)
813 widget.reset (n_inputs);
815 while (spinners.size() < n_inputs) {
816 spinners.push_back (new Gtk::SpinButton (widget.azimuth (spinners.size())));
817 spinner_box.pack_start (*spinners.back(), false, false);
818 spinners.back()->set_digits (4);
819 spinners.back()->show ();
822 while (spinners.size() > n_inputs) {
823 spinner_box.remove (*spinners.back());
824 delete spinners.back();
825 spinners.erase (--spinners.end());