2 Copyright (C) 2011 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 "pbd/cartesian.h"
22 #include "gtkmm2ext/keyboard.h"
24 #include "speaker_dialog.h"
28 using namespace ARDOUR;
32 using namespace Gtkmm2ext;
34 SpeakerDialog::SpeakerDialog ()
35 : ArdourDialog (_("Speaker Configuration"))
36 , aspect_frame ("", 0.5, 0.5, 1.0, false)
37 , azimuth_adjustment (0, 0.0, 360.0, 10.0, 1.0)
38 , azimuth_spinner (azimuth_adjustment)
39 , add_speaker_button (_("Add Speaker"))
40 , use_system_button (_("Use System"))
43 side_vbox.set_homogeneous (false);
44 side_vbox.set_border_width (9);
45 side_vbox.set_spacing (6);
46 side_vbox.pack_start (azimuth_spinner, false, false);
47 side_vbox.pack_start (add_speaker_button, false, false);
48 side_vbox.pack_start (use_system_button, false, false);
50 aspect_frame.set_size_request (200, 200);
51 aspect_frame.set_shadow_type (SHADOW_NONE);
52 aspect_frame.add (darea);
55 hbox.set_border_width (6);
56 hbox.pack_start (aspect_frame, true, true);
57 hbox.pack_start (side_vbox, false, false);
59 get_vbox()->pack_start (hbox);
60 get_vbox()->show_all ();
62 darea.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
64 darea.signal_size_allocate().connect (sigc::mem_fun (*this, &SpeakerDialog::darea_size_allocate));
65 darea.signal_expose_event().connect (sigc::mem_fun (*this, &SpeakerDialog::darea_expose_event));
66 darea.signal_button_press_event().connect (sigc::mem_fun (*this, &SpeakerDialog::darea_button_press_event));
67 darea.signal_button_release_event().connect (sigc::mem_fun (*this, &SpeakerDialog::darea_button_release_event));
68 darea.signal_motion_notify_event().connect (sigc::mem_fun (*this, &SpeakerDialog::darea_motion_notify_event));
70 add_speaker_button.signal_clicked().connect (sigc::mem_fun (*this, &SpeakerDialog::add_speaker));
76 SpeakerDialog::set_speakers (boost::shared_ptr<Speakers> s)
82 SpeakerDialog::get_speakers () const
88 SpeakerDialog::darea_expose_event (GdkEventExpose* event)
93 cr = gdk_cairo_create (darea.get_window()->gobj());
95 cairo_set_line_width (cr, 1.0);
97 cairo_rectangle (cr, event->area.x, event->area.y, event->area.width, event->area.height);
98 cairo_set_source_rgba (cr, 0.1, 0.1, 0.1, 1.0);
99 cairo_fill_preserve (cr);
103 cairo_translate (cr, 10.0, 10.0);
106 /* horizontal line of "crosshairs" */
108 cairo_set_source_rgb (cr, 0.0, 0.1, 0.7);
109 cairo_move_to (cr, 0.5, height/2.0+0.5);
110 cairo_line_to (cr, width+0.5, height/2+0.5);
113 /* vertical line of "crosshairs" */
115 cairo_move_to (cr, width/2+0.5, 0.5);
116 cairo_line_to (cr, width/2+0.5, height+0.5);
119 /* the circle on which signals live */
121 cairo_arc (cr, width/2, height/2, height/2, 0, 2.0 * M_PI);
126 cairo_select_font_face (cr, "sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
129 cairo_set_font_size (cr, 10);
132 cairo_set_font_size (cr, 16);
137 for (vector<Speaker>::iterator i = speakers.speakers().begin(); i != speakers.speakers().end(); ++i) {
140 CartesianVector c (s.coords());
144 x = (gint) floor (c.x);
145 y = (gint) floor (c.y);
147 /* XXX need to shift circles so that they are centered on the circle */
149 cairo_arc (cr, x, y, arc_radius, 0, 2.0 * M_PI);
150 cairo_set_source_rgb (cr, 0.8, 0.2, 0.1);
151 cairo_close_path (cr);
154 cairo_move_to (cr, x + 6, y + 6);
157 snprintf (buf, sizeof (buf), "%d:%d", n+1, (int) lrint (s.angles().azi));
158 cairo_show_text (cr, buf);
169 SpeakerDialog::cart_to_gtk (CartesianVector& c) const
171 /* "c" uses a coordinate space that is:
174 dimension = 2.0 * 2.0
175 so max values along each axis are -1..+1
177 GTK uses a coordinate space that is:
180 dimension = width * height
181 so max values along each axis are 0,width and
185 c.x = (width / 2) * (c.x + 1);
186 c.y = (height / 2) * (1 - c.y);
188 /* XXX z-axis not handled - 2D for now */
192 SpeakerDialog::gtk_to_cart (CartesianVector& c) const
194 c.x = (c.x / (width / 2.0)) - 1.0;
195 c.y = -((c.y / (height / 2.0)) - 1.0);
197 /* XXX z-axis not handled - 2D for now */
201 SpeakerDialog::clamp_to_circle (double& x, double& y)
207 PBD::cartesian_to_spherical (x, y, z, azi, ele, l);
208 PBD::spherical_to_cartesian (azi, ele, 1.0, x, y, z);
212 SpeakerDialog::darea_size_allocate (Gtk::Allocation& alloc)
214 width = alloc.get_width();
215 height = alloc.get_height();
224 SpeakerDialog::darea_button_press_event (GdkEventButton *ev)
226 GdkModifierType state;
228 if (ev->type == GDK_2BUTTON_PRESS && ev->button == 1) {
234 switch (ev->button) {
237 drag_index = find_closest_object (ev->x, ev->y);
238 drag_x = (int) floor (ev->x);
239 drag_y = (int) floor (ev->y);
240 state = (GdkModifierType) ev->state;
242 return handle_motion (drag_x, drag_y, state);
253 SpeakerDialog::darea_button_release_event (GdkEventButton *ev)
256 GdkModifierType state;
259 switch (ev->button) {
261 x = (int) floor (ev->x);
262 y = (int) floor (ev->y);
263 state = (GdkModifierType) ev->state;
265 if (Keyboard::modifier_state_contains (state, Keyboard::TertiaryModifier)) {
267 for (vector<Speaker>::iterator i = speakers.speakers().begin(); i != speakers.speakers().end(); ++i) {
268 /* XXX DO SOMETHING TO SET SPEAKER BACK TO "normal" */
275 ret = handle_motion (x, y, state);
281 x = (int) floor (ev->x);
282 y = (int) floor (ev->y);
283 state = (GdkModifierType) ev->state;
285 ret = handle_motion (x, y, state);
299 SpeakerDialog::find_closest_object (gdouble x, gdouble y)
302 float best_distance = FLT_MAX;
306 for (vector<Speaker>::iterator i = speakers.speakers().begin(); i != speakers.speakers().end(); ++i, ++n) {
308 Speaker& candidate (*i);
311 candidate.angles().cartesian (c);
314 distance = sqrt ((c.x - x) * (c.x - x) +
315 (c.y - y) * (c.y - y));
318 if (distance < best_distance) {
319 best_distance = distance;
324 if (best_distance > 20) { // arbitrary
332 SpeakerDialog::darea_motion_notify_event (GdkEventMotion *ev)
335 GdkModifierType state;
338 gdk_window_get_pointer (ev->window, &x, &y, &state);
340 x = (int) floor (ev->x);
341 y = (int) floor (ev->y);
342 state = (GdkModifierType) ev->state;
345 return handle_motion (x, y, state);
349 SpeakerDialog::handle_motion (gint evx, gint evy, GdkModifierType state)
351 if (drag_index < 0) {
355 if ((state & (GDK_BUTTON1_MASK|GDK_BUTTON2_MASK)) == 0) {
360 if (state & GDK_BUTTON1_MASK && !(state & GDK_BUTTON2_MASK)) {
362 bool need_move = false;
363 Speaker& moving (speakers.speakers()[drag_index]);
365 moving.angles().cartesian (c);
368 if ((evx != c.x) || (evy != c.y)) {
373 CartesianVector cp (evx, evy, 0.0);
375 /* canonicalize position */
379 /* position actual signal on circle */
381 clamp_to_circle (cp.x, cp.y);
383 /* generate an angular representation and set drag target (GUI) position */
399 SpeakerDialog::add_speaker ()
401 speakers.add_speaker (PBD::AngularVector (0, 0, 0));