GenericUI: only connect one PropertyChanged callback
[ardour.git] / gtk2_ardour / generic_pluginui.cc
1 /*
2     Copyright (C) 2000 Paul Davis
3
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.
8
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.
13
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.
17
18 */
19
20 #ifdef WAF_BUILD
21 #include "gtk2ardour-config.h"
22 #endif
23
24 #include <climits>
25 #include <cerrno>
26 #include <cmath>
27 #include <string>
28 #include <vector>
29
30 #include "pbd/stl_delete.h"
31 #include "pbd/unwind.h"
32 #include "pbd/xml++.h"
33 #include "pbd/failed_constructor.h"
34
35 #include <gtkmm2ext/click_box.h>
36 #include <gtkmm2ext/fastmeter.h>
37 #include <gtkmm2ext/barcontroller.h>
38 #include <gtkmm2ext/utils.h>
39 #include <gtkmm2ext/doi.h>
40 #include <gtkmm2ext/slider_controller.h>
41
42 #include "ardour/plugin.h"
43 #include "ardour/plugin_insert.h"
44 #include "ardour/session.h"
45 #include "ardour/value_as_string.h"
46
47 #include "prompter.h"
48 #include "plugin_ui.h"
49 #include "gui_thread.h"
50 #include "automation_controller.h"
51 #include "ardour_knob.h"
52 #include "gain_meter.h"
53 #include "timers.h"
54 #include "tooltips.h"
55 #include "ui_config.h"
56
57 #include "pbd/i18n.h"
58
59 using namespace std;
60 using namespace ARDOUR;
61 using namespace PBD;
62 using namespace Gtkmm2ext;
63 using namespace Gtk;
64 using namespace ARDOUR_UI_UTILS;
65
66 GenericPluginUI::GenericPluginUI (boost::shared_ptr<PluginInsert> pi, bool scrollable)
67         : PlugUIBase (pi)
68         , automation_menu (0)
69         , is_scrollable(scrollable)
70 {
71         set_name ("PluginEditor");
72         set_border_width (10);
73         //set_homogeneous (false);
74
75         pack_start (main_contents, true, true);
76         settings_box.set_homogeneous (false);
77
78         HBox* constraint_hbox = manage (new HBox);
79         HBox* smaller_hbox = manage (new HBox);
80         HBox* automation_hbox = manage (new HBox);
81         smaller_hbox->set_spacing (4);
82         automation_hbox->set_spacing (6);
83         Label* combo_label = manage (new Label (_("<span size=\"large\">Presets</span>")));
84         combo_label->set_use_markup (true);
85
86         latency_button.signal_clicked.connect (sigc::mem_fun (*this, &PlugUIBase::latency_button_clicked));
87         set_latency_label ();
88
89         smaller_hbox->pack_start (latency_button, false, false, 4);
90         smaller_hbox->pack_start (_preset_combo, false, false);
91         smaller_hbox->pack_start (_preset_modified, false, false);
92         smaller_hbox->pack_start (add_button, false, false);
93         smaller_hbox->pack_start (save_button, false, false);
94         smaller_hbox->pack_start (delete_button, false, false);
95         smaller_hbox->pack_start (reset_button, false, false, 4);
96         smaller_hbox->pack_start (bypass_button, false, true, 4);
97
98         automation_manual_all_button.set_text(_("Manual"));
99         automation_manual_all_button.set_name (X_("generic button"));
100         automation_play_all_button.set_text(_("Play"));
101         automation_play_all_button.set_name (X_("generic button"));
102         automation_write_all_button.set_text(_("Write"));
103         automation_write_all_button.set_name (X_("generic button"));
104         automation_touch_all_button.set_text(_("Touch"));
105         automation_touch_all_button.set_name (X_("generic button"));
106
107         Label* l = manage (new Label (_("All Automation")));
108         l->set_alignment (1.0, 0.5);
109         automation_hbox->pack_start (*l, true, true);
110         automation_hbox->pack_start (automation_manual_all_button, false, false);
111         automation_hbox->pack_start (automation_play_all_button, false, false);
112         automation_hbox->pack_start (automation_write_all_button, false, false);
113         automation_hbox->pack_start (automation_touch_all_button, false, false);
114
115         constraint_hbox->set_spacing (5);
116         constraint_hbox->set_homogeneous (false);
117
118         VBox* v1_box = manage (new VBox);
119         VBox* v2_box = manage (new VBox);
120         pack_end (plugin_analysis_expander, false, false);
121         if (!plugin->get_docs().empty()) {
122                 pack_end (description_expander, false, false);
123         }
124
125         v1_box->set_spacing (6);
126         v1_box->pack_start (*smaller_hbox, false, true);
127         v1_box->pack_start (*automation_hbox, false, true);
128         v2_box->pack_start (focus_button, false, true);
129
130         main_contents.pack_start (settings_box, false, false);
131
132         constraint_hbox->pack_end (*v2_box, false, false);
133         constraint_hbox->pack_end (*v1_box, false, false);
134
135         main_contents.pack_start (*constraint_hbox, false, false);
136
137         if (is_scrollable) {
138                 Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow());
139                 scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
140                 scroller->set_name ("PluginEditor");
141                 scroller->add (hpacker);
142                 main_contents.pack_start (*scroller, true, true);
143         } else {
144                 main_contents.pack_start (hpacker, false, false);
145         }
146
147         pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
148
149         bypass_button.set_active (!pi->enabled());
150
151         prefheight = 0;
152         build ();
153
154         /* Listen for property changes that are not notified normally because
155          * AutomationControl has only support for numeric values currently.
156          * The only case is Variant::PATH for now */
157         plugin->PropertyChanged.connect(*this, invalidator(*this),
158                                         boost::bind(&GenericPluginUI::path_property_changed, this, _1, _2),
159                                         gui_context());
160
161         main_contents.show ();
162 }
163
164 GenericPluginUI::~GenericPluginUI ()
165 {
166         if (output_controls.size() > 0) {
167                 screen_update_connection.disconnect();
168         }
169 }
170
171 // Some functions for calculating the 'similarity' of two plugin
172 // control labels.
173
174 static int get_number(string label) {
175 static const char *digits = "0123456789";
176 int value = -1;
177
178         std::size_t first_digit_pos = label.find_first_of(digits);
179         if (first_digit_pos != string::npos) {
180                 // found some digits: there's a number in there somewhere
181                 stringstream s;
182                 s << label.substr(first_digit_pos);
183                 s >> value;
184         }
185         return value;
186 }
187
188 static int match_or_digit(char c1, char c2) {
189         return c1 == c2 || (isdigit(c1) && isdigit(c2));
190 }
191
192 static std::size_t matching_chars_at_head(const string s1, const string s2) {
193 std::size_t length, n = 0;
194
195         length = min(s1.length(), s2.length());
196         while (n < length) {
197                 if (!match_or_digit(s1[n], s2[n]))
198                         break;
199                 n++;
200         }
201         return n;
202 }
203
204 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
205 std::size_t s1pos, s2pos, n = 0;
206
207         s1pos = s1.length();
208         s2pos = s2.length();
209         while (s1pos-- > 0 && s2pos-- > 0) {
210                 if (!match_or_digit(s1[s1pos], s2[s2pos])       )
211                         break;
212                 n++;
213         }
214         return n;
215 }
216
217 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
218 static const float default_similarity_threshold = 0.3;
219
220 void
221 GenericPluginUI::build ()
222 {
223         std::vector<ControlUI *> control_uis;
224         bool grid = true;
225
226         // Build a ControlUI for each control port
227         for (size_t i = 0; i < plugin->parameter_count(); ++i) {
228
229                 if (plugin->parameter_is_control (i)) {
230
231                         /* Don't show latency control ports */
232
233                         const Evoral::Parameter param(PluginAutomation, 0, i);
234                         if (plugin->describe_parameter (param) == X_("latency")) {
235                                 continue;
236                         }
237
238                         if (plugin->describe_parameter (param) == X_("hidden")) {
239                                 continue;
240                         }
241
242                         const float value = plugin->get_parameter(i);
243
244                         ControlUI* cui;
245                         Plugin::UILayoutHint hint;
246
247                         if (!plugin->get_layout(i, hint)) {
248                                 grid = false;
249                         }
250
251                         boost::shared_ptr<ARDOUR::AutomationControl> c
252                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
253                                         insert->control(param));
254
255                         ParameterDescriptor desc;
256                         plugin->get_parameter_descriptor(i, desc);
257                         if ((cui = build_control_ui (param, desc, c, value, plugin->parameter_is_input(i), hint.knob)) == 0) {
258                                 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
259                                 continue;
260                         }
261
262                         if (grid) {
263                                 cui->x0 = hint.x0;
264                                 cui->x1 = hint.x1;
265                                 cui->y0 = hint.y0;
266                                 cui->y1 = hint.y1;
267                         }
268
269                         const std::string param_docs = plugin->get_parameter_docs(i);
270                         if (!param_docs.empty()) {
271                                 set_tooltip(cui, param_docs.c_str());
272                         }
273
274                         control_uis.push_back(cui);
275                         input_controls_with_automation.push_back (cui);
276                 }
277         }
278
279         // Build a ControlUI for each property
280         const Plugin::PropertyDescriptors& descs = plugin->get_supported_properties();
281         for (Plugin::PropertyDescriptors::const_iterator d = descs.begin(); d != descs.end(); ++d) {
282                 const ParameterDescriptor& desc = d->second;
283                 const Evoral::Parameter    param(PluginPropertyAutomation, 0, desc.key);
284
285                 boost::shared_ptr<ARDOUR::AutomationControl> c
286                         = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
287                                 insert->control(param));
288
289                 if (!c) {
290                         error << string_compose(_("Plugin Editor: no control for property %1"), desc.key) << endmsg;
291                         continue;
292                 }
293
294                 ControlUI* cui = build_control_ui(param, desc, c, c->get_value(), true);
295                 if (!cui) {
296                         error << string_compose(_("Plugin Editor: could not build control element for property %1"),
297                                                 desc.key) << endmsg;
298                         continue;
299                 }
300
301                 control_uis.push_back(cui);
302         }
303         if (!descs.empty()) {
304                 plugin->announce_property_values();
305         }
306
307         if (grid) {
308                 custom_layout (control_uis);
309         } else {
310                 automatic_layout (control_uis);
311         }
312
313         output_update ();
314
315         automation_manual_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Off));
316         automation_play_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Play));
317         automation_write_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Write));
318         automation_touch_all_button.signal_clicked.connect(sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::set_all_automation), ARDOUR::Touch));
319 }
320
321
322 void
323 GenericPluginUI::automatic_layout (const std::vector<ControlUI*>& control_uis)
324 {
325         guint32 x = 0;
326
327         static const int32_t initial_button_rows = 12;
328         static const int32_t initial_button_cols = 1;
329         static const int32_t initial_output_rows = 1;
330         static const int32_t initial_output_cols = 4;
331
332         Gtk::Table* button_table = manage (new Gtk::Table (initial_button_rows, initial_button_cols));
333         Gtk::Table* output_table = manage (new Gtk::Table (initial_output_rows, initial_output_cols));
334
335         Frame* frame;
336         Frame* bt_frame;
337         VBox* box;
338         int output_row, output_col;
339         int button_row, button_col;
340         int output_rows, output_cols;
341         int button_rows, button_cols;
342
343         hpacker.set_spacing (10);
344         hpacker.set_border_width (10);
345
346         output_rows = initial_output_rows;
347         output_cols = initial_output_cols;
348         button_rows = initial_button_rows;
349         button_cols = initial_button_cols;
350         output_row = 0;
351         button_row = 0;
352         output_col = 0;
353         button_col = 0;
354
355         button_table->set_homogeneous (false);
356         button_table->set_row_spacings (2);
357         button_table->set_col_spacings (2);
358         output_table->set_homogeneous (true);
359         output_table->set_row_spacings (2);
360         output_table->set_col_spacings (2);
361         button_table->set_border_width (5);
362         output_table->set_border_width (5);
363
364
365         bt_frame = manage (new Frame);
366         bt_frame->set_name ("BaseFrame");
367         bt_frame->set_label (_("Switches"));
368         bt_frame->add (*button_table);
369         hpacker.pack_start(*bt_frame, true, true);
370
371         box = manage (new VBox);
372         box->set_border_width (5);
373         box->set_spacing (1);
374
375         frame = manage (new Frame);
376         frame->set_name ("BaseFrame");
377         frame->set_label (_("Controls"));
378         frame->add (*box);
379         hpacker.pack_start(*frame, true, true);
380
381         // Add special controls to UI, and build list of normal controls to be layed out later
382         std::vector<ControlUI *> cui_controls_list;
383         for (size_t i = 0; i < control_uis.size(); ++i) {
384                 ControlUI* cui = control_uis[i];
385
386                 if (cui->button || cui->file_button) {
387
388                         if (!is_scrollable && button_row == button_rows) {
389                                 button_row = 0;
390                                 if (++button_col == button_cols) {
391                                         button_cols += 2;
392                                         button_table->resize (button_rows, button_cols);
393                                 }
394                         }
395
396                         button_table->attach (*cui, button_col, button_col + 1, button_row, button_row+1,
397                                              FILL|EXPAND, FILL);
398                         button_row++;
399
400                 } else if (cui->controller || cui->clickbox || cui->combo) {
401                         // Get all of the controls into a list, so that
402                         // we can lay them out a bit more nicely later.
403                         cui_controls_list.push_back(cui);
404
405                 } else if (cui->display) {
406
407                         output_table->attach (*cui, output_col, output_col + 1, output_row, output_row+1,
408                                              FILL|EXPAND, FILL);
409
410                         // TODO: The meters should be divided into multiple rows
411
412                         if (++output_col == output_cols) {
413                                 output_cols ++;
414                                 output_table->resize (output_rows, output_cols);
415                         }
416                 }
417         }
418
419         // Iterate over the list of controls to find which adjacent controls
420         // are similar enough to be grouped together.
421
422         string label, previous_label = "";
423         std::vector<int> numbers_in_labels(cui_controls_list.size());
424
425         std::vector<float> similarity_scores(cui_controls_list.size());
426         float most_similar = 0.0, least_similar = 1.0;
427
428         size_t i = 0;
429         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
430                 label = (*cuip)->label.get_text();
431                 numbers_in_labels[i] = get_number(label);
432
433                 if (i > 0) {
434                         // A hand-wavy calculation of how similar this control's
435                         // label is to the previous.
436                         similarity_scores[i] =
437                                 (float) (
438                                         ( matching_chars_at_head(label, previous_label) +
439                                           matching_chars_at_tail(label, previous_label) +
440                                           1
441                                         )
442                                 ) / (label.length() + previous_label.length());
443                         if (numbers_in_labels[i] >= 0) {
444                                 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
445                         }
446                         least_similar = min(least_similar, similarity_scores[i]);
447                         most_similar  = max(most_similar, similarity_scores[i]);
448                 } else {
449                         similarity_scores[0] = 1.0;
450                 }
451
452                 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
453                 previous_label = label;
454         }
455
456
457         // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
458         float similarity_threshold;
459
460         if (most_similar > 1.0) {
461                 similarity_threshold = default_similarity_threshold;
462         } else {
463                 similarity_threshold = most_similar - (1 - default_similarity_threshold);
464         }
465
466         // Now iterate over the list of controls to display them, placing an
467         // HSeparator between controls of less than a certain similarity, and
468         // starting a new column when necessary.
469
470         i = 0;
471         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
472
473                 ControlUI* cui = *cuip;
474
475                 if (!is_scrollable) {
476                         x++;
477                 }
478
479                 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
480                         if (x > min_controls_per_column) {
481                                 frame = manage (new Frame);
482                                 frame->set_name ("BaseFrame");
483                                 frame->set_label (_("Controls"));
484                                 box = manage (new VBox);
485                                 box->set_border_width (5);
486                                 box->set_spacing (1);
487                                 frame->add (*box);
488                                 hpacker.pack_start(*frame, true, true);
489                                 x = 0;
490                         } else {
491                                 HSeparator *split = new HSeparator();
492                                 split->set_size_request(-1, 5);
493                                 box->pack_start(*split, false, false, 0);
494                         }
495
496                 }
497                 box->pack_start (*cui, false, false);
498         }
499
500         if (is_scrollable) {
501                 prefheight = 30 * i;
502         }
503
504         if (box->children().empty()) {
505                 hpacker.remove (*frame);
506         }
507
508         if (button_table->children().empty()) {
509                 hpacker.remove (*bt_frame);
510                 delete button_table;
511         } else {
512                 button_table->show_all ();
513         }
514
515         if (!output_table->children().empty()) {
516                 frame = manage (new Frame);
517                 frame->set_name ("BaseFrame");
518                 frame->set_label(_("Meters"));
519                 frame->add (*output_table);
520                 hpacker.pack_end (*frame, true, true);
521                 output_table->show_all ();
522         } else {
523                 delete output_table;
524         }
525 }
526
527 void
528 GenericPluginUI::custom_layout (const std::vector<ControlUI*>& control_uis)
529 {
530         Gtk::Table* layout = manage (new Gtk::Table ());
531
532         for (vector<ControlUI*>::const_iterator i = control_uis.begin(); i != control_uis.end(); ++i) {
533                 ControlUI* cui = *i;
534                 if (cui->x0 < 0 || cui->y0 < 0) {
535                         continue;
536                 }
537                 layout->attach (*cui, cui->x0, cui->x1, cui->y0, cui->y1, FILL, SHRINK, 2, 2);
538         }
539         hpacker.pack_start (*layout, true, true);
540 }
541
542 GenericPluginUI::ControlUI::ControlUI (const Evoral::Parameter& p)
543         : param(p)
544         , automate_button (X_("")) // force creation of a label
545         , combo (0)
546         , clickbox (0)
547         , file_button (0)
548         , spin_box (0)
549         , display (0)
550         , hbox (0)
551         , vbox (0)
552         , meterinfo (0)
553         , knobtable (0)
554 {
555         automate_button.set_name ("PluginAutomateButton");
556         set_tooltip (automate_button, _("Automation control"));
557
558         /* XXX translators: use a string here that will be at least as long
559            as the longest automation label (see ::automation_state_changed()
560            below). be sure to include a descender.
561         */
562
563         set_size_request_to_display_given_text (automate_button, _("Mgnual"), 12, 6);
564
565         ignore_change = false;
566         update_pending = false;
567         button = false;
568
569         x0 = x1 = y0 = y1 = -1;
570 }
571
572 GenericPluginUI::ControlUI::~ControlUI()
573 {
574         if (meterinfo) {
575                 delete meterinfo->meter;
576                 delete meterinfo;
577         }
578 }
579
580 void
581 GenericPluginUI::automation_state_changed (ControlUI* cui)
582 {
583         /* update button label */
584
585         // don't lock to avoid deadlock because we're triggered by
586         // AutomationControl::Changed() while the automation lock is taken
587
588         if (cui->knobtable) {
589                 cui->automate_button.set_text (
590                                 GainMeterBase::astate_string (
591                                         insert->get_parameter_automation_state (cui->parameter()))
592                                 );
593                 return;
594         }
595
596         switch (insert->get_parameter_automation_state (cui->parameter()) & (ARDOUR::Off|Play|Touch|Write)) {
597         case ARDOUR::Off:
598                 cui->automate_button.set_text (S_("Automation|Manual"));
599                 break;
600         case Play:
601                 cui->automate_button.set_text (_("Play"));
602                 break;
603         case Write:
604                 cui->automate_button.set_text (_("Write"));
605                 break;
606         case Touch:
607                 cui->automate_button.set_text (_("Touch"));
608                 break;
609         default:
610                 cui->automate_button.set_text (_("???"));
611                 break;
612         }
613 }
614
615 bool
616 GenericPluginUI::integer_printer (char buf[32], Adjustment &adj, ControlUI* cui)
617 {
618         float const        v   = cui->control->interface_to_internal(adj.get_value ());
619         const std::string& str = ARDOUR::value_as_string(cui->control->desc(), Variant(v));
620         const size_t       len = str.copy(buf, 31);
621         buf[len] = '\0';
622         return true;
623 }
624
625 bool
626 GenericPluginUI::midinote_printer (char buf[32], Adjustment &adj, ControlUI* cui)
627 {
628         float const        v   = cui->control->interface_to_internal(adj.get_value ());
629         const std::string& str = ARDOUR::value_as_string(cui->control->desc(), Variant(v));
630         const size_t       len = str.copy(buf, 31);
631         buf[len] = '\0';
632         return true;
633 }
634
635 void
636 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
637 {
638         plugin->print_parameter (param, buf, len);
639 }
640
641 /** Build a ControlUI for a parameter/property.
642  * Note that mcontrol may be NULL for outputs.
643  */
644 GenericPluginUI::ControlUI*
645 GenericPluginUI::build_control_ui (const Evoral::Parameter&             param,
646                                    const ParameterDescriptor&           desc,
647                                    boost::shared_ptr<AutomationControl> mcontrol,
648                                    float                                value,
649                                    bool                                 is_input,
650                                    bool                                 use_knob)
651 {
652         ControlUI* control_ui = 0;
653
654         control_ui = manage (new ControlUI (param));
655         control_ui->combo = 0;
656         control_ui->control = mcontrol;
657         control_ui->label.set_text (desc.label);
658         control_ui->label.set_alignment (0.0, 0.5);
659         control_ui->label.set_name ("PluginParameterLabel");
660         control_ui->set_spacing (5);
661
662         Gtk::Requisition req (control_ui->automate_button.size_request());
663
664         if (is_input) {
665
666                 /* See if there any named values for our input value */
667                 control_ui->scale_points = desc.scale_points;
668
669                 /* If this parameter is an integer, work out the number of distinct values
670                    it can take on (assuming that lower and upper values are allowed).
671                 */
672                 int const steps = desc.integer_step ? (desc.upper - desc.lower + 1) / desc.step : 0;
673
674                 if (control_ui->scale_points && ((steps && int (control_ui->scale_points->size()) == steps) || desc.enumeration)) {
675
676                         /* Either:
677                          *   a) There is a label for each possible value of this input, or
678                          *   b) This port is marked as being an enumeration.
679                          */
680
681                         control_ui->combo = new ArdourDropdown();
682                         for (ARDOUR::ScalePoints::const_iterator i = control_ui->scale_points->begin();
683                              i != control_ui->scale_points->end();
684                              ++i) {
685                                 control_ui->combo->AddMenuElem(Menu_Helpers::MenuElem(
686                                                 i->first,
687                                                 sigc::bind(sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
688                                                            control_ui,
689                                                            i->second)));
690                         }
691
692                         mcontrol->Changed.connect(control_connections, invalidator(*this),
693                                                   boost::bind(&GenericPluginUI::ui_parameter_changed,
694                                                               this, control_ui),
695                                                   gui_context());
696
697                         if (use_knob) {
698                                 control_ui->knobtable = manage (new Table());
699                                 control_ui->pack_start(*control_ui->knobtable, true, false);
700                                 control_ui->knobtable->attach (control_ui->label, 0, 1, 0, 1);
701                                 control_ui->knobtable->attach (*control_ui->combo, 0, 1, 1, 2);
702                         } else {
703                                 control_ui->pack_start(control_ui->label, true, true);
704                                 control_ui->pack_start(*control_ui->combo, false, true);
705                         }
706
707                         update_control_display(control_ui);
708
709                         return control_ui;
710                 }
711
712                 if (desc.datatype == Variant::PATH) {
713
714                         /* Build a file selector button */
715
716                         // Create/add controller
717                         control_ui->file_button = manage(new Gtk::FileChooserButton(Gtk::FILE_CHOOSER_ACTION_OPEN));
718                         control_ui->file_button->set_title(desc.label);
719
720                         if (use_knob) {
721                                 control_ui->knobtable = manage (new Table());
722                                 control_ui->pack_start(*control_ui->knobtable, true, false);
723                                 control_ui->knobtable->attach (control_ui->label, 0, 1, 0, 1);
724                                 control_ui->knobtable->attach (*control_ui->file_button, 0, 1, 1, 2);
725                         } else {
726                                 control_ui->pack_start (control_ui->label, false, true);
727                                 control_ui->pack_start (*control_ui->file_button, true, true);
728                         }
729
730                         // Monitor changes from the user.
731                         control_ui->file_button->signal_file_set().connect(
732                                 sigc::bind(sigc::mem_fun(*this, &GenericPluginUI::set_path_property),
733                                            desc, control_ui->file_button));
734
735                         /* Add the filebutton control to a map so that we can update it when
736                          * the corresponding property changes. This doesn't go through the usual
737                          * AutomationControls, because they don't support non-numeric values. */
738                         _filepath_controls.insert(std::make_pair(desc.key, control_ui->file_button));
739
740                         return control_ui;
741                 }
742
743                 /* create the controller */
744
745                 /* XXX memory leak: SliderController not destroyed by ControlUI
746                  * destructor, and manage() reports object hierarchy
747                  * ambiguity.
748                  */
749                 if (mcontrol) {
750                         control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), desc, mcontrol, use_knob);
751                 }
752
753                 /* XXX this code is not right yet, because it doesn't handle
754                    the absence of bounds in any sensible fashion.
755                 */
756
757                 Adjustment* adj = control_ui->controller->adjustment();
758
759                 if (desc.integer_step && !desc.toggled) {
760                         control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox", true);
761                         Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
762                         if (desc.unit == ParameterDescriptor::MIDI_NOTE) {
763                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::midinote_printer), control_ui));
764                         } else {
765                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::integer_printer), control_ui));
766                         }
767                 } else if (desc.toggled) {
768                         control_ui->controller->set_size_request (req.height, req.height);
769                 } else if (use_knob) {
770                         control_ui->controller->set_size_request (req.height * 1.5, req.height * 1.5);
771                 } else {
772                         control_ui->controller->set_size_request (200, req.height);
773                         control_ui->controller->set_name (X_("ProcessorControlSlider"));
774                 }
775
776                 if (!desc.integer_step && !desc.toggled && use_knob) {
777                         control_ui->spin_box = manage (new ArdourSpinner (mcontrol, adj, insert));
778                 }
779
780                 adj->set_value (mcontrol->internal_to_interface(value));
781
782                 if (use_knob) {
783                         set_size_request_to_display_given_text (control_ui->automate_button, "M", 2, 2);
784
785                         control_ui->label.set_alignment (0.5, 0.5);
786                         control_ui->knobtable = manage (new Table());
787                         control_ui->pack_start(*control_ui->knobtable, true, true);
788
789                         if (control_ui->clickbox) {
790                                 control_ui->knobtable->attach (*control_ui->clickbox, 0, 2, 0, 1);
791                                 control_ui->knobtable->attach (control_ui->label, 0, 1, 1, 2, FILL, SHRINK);
792                                 control_ui->knobtable->attach (control_ui->automate_button, 1, 2, 1, 2, SHRINK, SHRINK, 2, 0);
793                         } else if (control_ui->spin_box) {
794                                 ArdourKnob* knob = dynamic_cast<ArdourKnob*>(control_ui->controller->widget ());
795                                 knob->set_tooltip_prefix (desc.label + ": ");
796                                 knob->set_printer (insert);
797                                 Alignment *align = manage (new Alignment (.5, .5, 0, 0));
798                                 align->add (*control_ui->controller);
799                                 control_ui->knobtable->attach (*align, 0, 1, 0, 1, EXPAND, SHRINK, 1, 2);
800                                 control_ui->knobtable->attach (*control_ui->spin_box, 0, 2, 1, 2);
801                                 control_ui->knobtable->attach (control_ui->automate_button, 1, 2, 0, 1, SHRINK, SHRINK, 2, 0);
802                         } else if (desc.toggled) {
803                                 Alignment *align = manage (new Alignment (.5, .5, 0, 0));
804                                 align->add (*control_ui->controller);
805                                 control_ui->knobtable->attach (*align, 0, 2, 0, 1, EXPAND, SHRINK, 2, 2);
806                                 control_ui->knobtable->attach (control_ui->label, 0, 1, 1, 2, FILL, SHRINK);
807                                 control_ui->knobtable->attach (control_ui->automate_button, 1, 2, 1, 2, SHRINK, SHRINK, 2, 0);
808                         } else {
809                                 control_ui->knobtable->attach (*control_ui->controller, 0, 2, 0, 1);
810                                 control_ui->knobtable->attach (control_ui->label, 0, 1, 1, 2, FILL, SHRINK);
811                                 control_ui->knobtable->attach (control_ui->automate_button, 1, 2, 1, 2, SHRINK, SHRINK, 2, 0);
812                         }
813
814                 } else {
815
816                         control_ui->pack_start (control_ui->label, true, true);
817                         if (control_ui->clickbox) {
818                                 control_ui->pack_start (*control_ui->clickbox, false, false);
819                         } else if (control_ui->spin_box) {
820                                 control_ui->pack_start (*control_ui->spin_box, false, false);
821                                 control_ui->pack_start (*control_ui->controller, false, false);
822                         } else {
823                                 control_ui->pack_start (*control_ui->controller, false, false);
824                         }
825                         control_ui->pack_start (control_ui->automate_button, false, false);
826                 }
827
828
829                 if (mcontrol->flags () & Controllable::NotAutomatable) {
830                         control_ui->automate_button.set_sensitive (false);
831                         set_tooltip(control_ui->automate_button, _("This control cannot be automated"));
832                 } else {
833                         control_ui->automate_button.signal_clicked.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui));
834                         mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
835                 }
836
837                 if (desc.toggled) {
838                         control_ui->button = true;
839                         ArdourButton* but = dynamic_cast<ArdourButton*>(control_ui->controller->widget ());
840                         assert (but);
841                         but->set_name ("pluginui toggle");
842                         update_control_display(control_ui);
843                 }
844
845                 automation_state_changed (control_ui);
846
847                 input_controls.push_back (control_ui);
848                 input_controls_with_automation.push_back (control_ui);
849
850         } else if (!is_input) {
851
852                 control_ui->display = manage (new EventBox);
853                 control_ui->display->set_name ("ParameterValueDisplay");
854
855                 control_ui->display_label = manage (new Label);
856
857                 control_ui->display_label->set_name ("ParameterValueDisplay");
858
859                 control_ui->display->add (*control_ui->display_label);
860                 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-888.8g", 2, 6);
861
862                 control_ui->display->show_all ();
863
864                 control_ui->vbox = manage (new VBox);
865                 control_ui->vbox->set_spacing(3);
866
867                 if (desc.integer_step || desc.enumeration) {
868                         control_ui->vbox->pack_end (*control_ui->display, false, false);
869                         control_ui->vbox->pack_end (control_ui->label, false, false);
870                 } else {
871                         /* set up a meter for float ports */
872
873                         MeterInfo * info = new MeterInfo();
874                         control_ui->meterinfo = info;
875
876                         info->meter = new FastMeter (
877                                         5, 5, FastMeter::Vertical, 0,
878                                         0x0000aaff,
879                                         0x008800ff, 0x008800ff,
880                                         0x00ff00ff, 0x00ff00ff,
881                                         0xcccc00ff, 0xcccc00ff,
882                                         0xffaa00ff, 0xffaa00ff,
883                                         0xff0000ff,
884                                         UIConfiguration::instance().color ("meter background bottom"),
885                                         UIConfiguration::instance().color ("meter background top")
886                                         );
887
888                         info->min_unbound = desc.min_unbound;
889                         info->max_unbound = desc.max_unbound;
890
891                         info->min = desc.lower;
892                         info->max = desc.upper;
893
894                         control_ui->label.set_angle(90);
895
896                         HBox* center =  manage (new HBox);
897                         center->set_spacing(1);
898                         center->pack_start (control_ui->label, false, false);
899                         center->pack_start (*info->meter, false, false);
900
901                         control_ui->hbox = manage (new HBox);
902                         control_ui->hbox->pack_start (*center, true, false);
903
904                         // horizontally center this hbox in the vbox
905                         control_ui->vbox->pack_start (*control_ui->hbox, false, false);
906
907                         control_ui->meterinfo->meter->show_all();
908                         control_ui->meterinfo->packed = true;
909                         control_ui->vbox->pack_start (*control_ui->display, false, false);
910                 }
911
912                 control_ui->pack_start (*control_ui->vbox);
913
914                 output_controls.push_back (control_ui);
915         }
916
917         if (mcontrol) {
918                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
919         }
920
921         return control_ui;
922 }
923
924 void
925 GenericPluginUI::astate_clicked (ControlUI* cui)
926 {
927         using namespace Menu_Helpers;
928
929         if (automation_menu == 0) {
930                 automation_menu = manage (new Menu);
931                 automation_menu->set_name ("ArdourContextMenu");
932         }
933
934         MenuList& items (automation_menu->items());
935
936         items.clear ();
937         items.push_back (MenuElem (S_("Automation|Manual"),
938                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) ARDOUR::Off, cui)));
939         items.push_back (MenuElem (_("Play"),
940                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
941         items.push_back (MenuElem (_("Write"),
942                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
943         items.push_back (MenuElem (_("Touch"),
944                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
945
946         automation_menu->popup (1, gtk_get_current_event_time());
947 }
948
949 void
950 GenericPluginUI::set_all_automation (AutoState as)
951 {
952         for (vector<ControlUI*>::iterator i = input_controls_with_automation.begin(); i != input_controls_with_automation.end(); ++i) {
953                 if ((*i)->controller || (*i)->button) {
954                         set_automation_state (as, (*i));
955                 }
956         }
957 }
958
959 void
960 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
961 {
962         insert->set_parameter_automation_state (cui->parameter(), state);
963 }
964
965 void
966 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
967 {
968         if (!cui->update_pending) {
969                 cui->update_pending = true;
970                 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
971         }
972 }
973
974 void
975 GenericPluginUI::update_control_display (ControlUI* cui)
976 {
977         /* XXX how do we handle logarithmic stuff here ? */
978
979         cui->update_pending = false;
980
981         float val = cui->control->get_value();
982
983         PBD::Unwinder<bool> (cui->ignore_change, true);
984
985         if (cui->combo && cui->scale_points) {
986                 for (ARDOUR::ScalePoints::iterator it = cui->scale_points->begin(); it != cui->scale_points->end(); ++it) {
987                         if (it->second == val) {
988                                 cui->combo->set_text(it->first);
989                                 break;
990                         }
991                 }
992         } else if (cui->button) {
993                 // AutomationController handles this
994         }
995
996         if( cui->controller ) {
997             cui->controller->display_effective_value();
998         }
999
1000
1001         /*} else {
1002                 if (cui->logarithmic) {
1003                         val = log(val);
1004                 }
1005                 if (val != cui->adjustment->get_value()) {
1006                         cui->adjustment->set_value (val);
1007                 }
1008         }*/
1009 }
1010
1011 void
1012 GenericPluginUI::control_combo_changed (ControlUI* cui, float value)
1013 {
1014         if (!cui->ignore_change) {
1015                 insert->automation_control (cui->parameter())->set_value (value, Controllable::NoGroup);
1016         }
1017 }
1018
1019 bool
1020 GenericPluginUI::start_updating (GdkEventAny*)
1021 {
1022         if (output_controls.size() > 0 ) {
1023                 screen_update_connection.disconnect();
1024                 screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &GenericPluginUI::output_update));
1025         }
1026         return false;
1027 }
1028
1029 bool
1030 GenericPluginUI::stop_updating (GdkEventAny*)
1031 {
1032         for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
1033                 (*i)->controller->stop_updating ();
1034         }
1035
1036         if (output_controls.size() > 0 ) {
1037                 screen_update_connection.disconnect();
1038         }
1039
1040         return false;
1041 }
1042
1043 void
1044 GenericPluginUI::output_update ()
1045 {
1046         for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
1047                 float val = plugin->get_parameter ((*i)->parameter().id());
1048                 char buf[32];
1049                 snprintf (buf, sizeof(buf), "%.2f", val);
1050                 (*i)->display_label->set_text (buf);
1051
1052                 /* autoscaling for the meter */
1053                 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
1054
1055                         if (val < (*i)->meterinfo->min) {
1056                                 if ((*i)->meterinfo->min_unbound)
1057                                         (*i)->meterinfo->min = val;
1058                                 else
1059                                         val = (*i)->meterinfo->min;
1060                         }
1061
1062                         if (val > (*i)->meterinfo->max) {
1063                                 if ((*i)->meterinfo->max_unbound)
1064                                         (*i)->meterinfo->max = val;
1065                                 else
1066                                         val = (*i)->meterinfo->max;
1067                         }
1068
1069                         if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
1070                                 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
1071                                 (*i)->meterinfo->meter->set (lval );
1072                         }
1073                 }
1074         }
1075 }
1076
1077 void
1078 GenericPluginUI::set_path_property (const ParameterDescriptor& desc,
1079                                     Gtk::FileChooserButton*    widget)
1080 {
1081         plugin->set_property(desc.key, Variant(Variant::PATH, widget->get_filename()));
1082 }
1083
1084 void
1085 GenericPluginUI::path_property_changed (uint32_t key, const Variant& value)
1086 {
1087         FilePathControls::iterator c = _filepath_controls.find(key);
1088         if (c != _filepath_controls.end()) {
1089                 c->second->set_filename(value.get_path());
1090         } else {
1091                 std::cerr << "warning: property change for property with no control" << std::endl;
1092         }
1093 }