1 #include "midi_mapping_dialog.h"
4 #include <google/protobuf/descriptor.h>
5 #include <google/protobuf/message.h>
7 #include <QDialogButtonBox>
10 #include <QPushButton>
12 #include <QStringList>
13 #include <QTreeWidget>
21 #include "midi_mapper.h"
22 #include "midi_mapping.pb.h"
23 #include "post_to_main_thread.h"
24 #include "ui_midi_mapping.h"
28 using namespace google::protobuf;
31 vector<MIDIMappingDialog::Control> per_bus_controllers = {
32 { "Treble", MIDIMappingBusProto::kTrebleFieldNumber, MIDIMappingProto::kTrebleBankFieldNumber },
33 { "Mid", MIDIMappingBusProto::kMidFieldNumber, MIDIMappingProto::kMidBankFieldNumber },
34 { "Bass", MIDIMappingBusProto::kBassFieldNumber, MIDIMappingProto::kBassBankFieldNumber },
35 { "Gain", MIDIMappingBusProto::kGainFieldNumber, MIDIMappingProto::kGainBankFieldNumber },
36 { "Compressor threshold", MIDIMappingBusProto::kCompressorThresholdFieldNumber,
37 MIDIMappingProto::kCompressorThresholdBankFieldNumber},
38 { "Fader", MIDIMappingBusProto::kFaderFieldNumber, MIDIMappingProto::kFaderBankFieldNumber }
40 vector<MIDIMappingDialog::Control> per_bus_buttons = {
41 { "Toggle mute", MIDIMappingBusProto::kToggleMuteFieldNumber,
42 MIDIMappingProto::kToggleMuteBankFieldNumber },
43 { "Toggle locut", MIDIMappingBusProto::kToggleLocutFieldNumber,
44 MIDIMappingProto::kToggleLocutBankFieldNumber },
45 { "Togle auto gain staging", MIDIMappingBusProto::kToggleAutoGainStagingFieldNumber,
46 MIDIMappingProto::kToggleAutoGainStagingBankFieldNumber },
47 { "Togle compressor", MIDIMappingBusProto::kToggleCompressorFieldNumber,
48 MIDIMappingProto::kToggleCompressorBankFieldNumber },
49 { "Clear peak", MIDIMappingBusProto::kClearPeakFieldNumber,
50 MIDIMappingProto::kClearPeakBankFieldNumber }
52 vector<MIDIMappingDialog::Control> per_bus_lights = {
53 { "Is muted", MIDIMappingBusProto::kIsMutedFieldNumber, 0 },
54 { "Locut is on", MIDIMappingBusProto::kLocutIsOnFieldNumber, 0 },
55 { "Auto gain staging is on", MIDIMappingBusProto::kAutoGainStagingIsOnFieldNumber, 0 },
56 { "Compressor is on", MIDIMappingBusProto::kCompressorIsOnFieldNumber, 0 },
57 { "Bus has peaked", MIDIMappingBusProto::kHasPeakedFieldNumber, 0 }
59 vector<MIDIMappingDialog::Control> global_controllers = {
60 { "Locut cutoff", MIDIMappingBusProto::kLocutFieldNumber, MIDIMappingProto::kLocutBankFieldNumber },
61 { "Limiter threshold", MIDIMappingBusProto::kLimiterThresholdFieldNumber,
62 MIDIMappingProto::kLimiterThresholdBankFieldNumber },
63 { "Makeup gain", MIDIMappingBusProto::kMakeupGainFieldNumber,
64 MIDIMappingProto::kMakeupGainBankFieldNumber }
66 vector<MIDIMappingDialog::Control> global_buttons = {
67 { "Previous bank", MIDIMappingBusProto::kPrevBankFieldNumber, 0 },
68 { "Next bank", MIDIMappingBusProto::kNextBankFieldNumber, 0 },
69 { "Select bank 1", MIDIMappingBusProto::kSelectBank1FieldNumber, 0 },
70 { "Select bank 2", MIDIMappingBusProto::kSelectBank2FieldNumber, 0 },
71 { "Select bank 3", MIDIMappingBusProto::kSelectBank3FieldNumber, 0 },
72 { "Select bank 4", MIDIMappingBusProto::kSelectBank4FieldNumber, 0 },
73 { "Select bank 5", MIDIMappingBusProto::kSelectBank5FieldNumber, 0 },
74 { "Toggle limiter", MIDIMappingBusProto::kToggleLimiterFieldNumber, MIDIMappingProto::kToggleLimiterBankFieldNumber },
75 { "Toggle auto makeup gain", MIDIMappingBusProto::kToggleAutoMakeupGainFieldNumber, MIDIMappingProto::kToggleAutoMakeupGainBankFieldNumber }
77 vector<MIDIMappingDialog::Control> global_lights = {
78 { "Bank 1 is selected", MIDIMappingBusProto::kBank1IsSelectedFieldNumber, 0 },
79 { "Bank 2 is selected", MIDIMappingBusProto::kBank2IsSelectedFieldNumber, 0 },
80 { "Bank 3 is selected", MIDIMappingBusProto::kBank3IsSelectedFieldNumber, 0 },
81 { "Bank 4 is selected", MIDIMappingBusProto::kBank4IsSelectedFieldNumber, 0 },
82 { "Bank 5 is selected", MIDIMappingBusProto::kBank5IsSelectedFieldNumber, 0 },
83 { "Limiter is on", MIDIMappingBusProto::kLimiterIsOnFieldNumber, 0 },
84 { "Auto makeup gain is on", MIDIMappingBusProto::kAutoMakeupGainIsOnFieldNumber, 0 },
89 int get_bank(const MIDIMappingProto &mapping_proto, int bank_field_number, int default_value)
91 const FieldDescriptor *bank_descriptor = mapping_proto.GetDescriptor()->FindFieldByNumber(bank_field_number);
92 const Reflection *reflection = mapping_proto.GetReflection();
93 if (!reflection->HasField(mapping_proto, bank_descriptor)) {
96 return reflection->GetInt32(mapping_proto, bank_descriptor);
99 int get_controller_mapping(const MIDIMappingProto &mapping_proto, size_t bus_idx, int field_number, int default_value)
101 if (bus_idx >= size_t(mapping_proto.bus_mapping_size())) {
102 return default_value;
105 const MIDIMappingBusProto &bus_mapping = mapping_proto.bus_mapping(bus_idx);
106 const FieldDescriptor *descriptor = bus_mapping.GetDescriptor()->FindFieldByNumber(field_number);
107 const Reflection *bus_reflection = bus_mapping.GetReflection();
108 if (!bus_reflection->HasField(bus_mapping, descriptor)) {
109 return default_value;
111 const MIDIControllerProto &controller_proto =
112 static_cast<const MIDIControllerProto &>(bus_reflection->GetMessage(bus_mapping, descriptor));
113 return controller_proto.controller_number();
116 int get_button_mapping(const MIDIMappingProto &mapping_proto, size_t bus_idx, int field_number, int default_value)
118 if (bus_idx >= size_t(mapping_proto.bus_mapping_size())) {
119 return default_value;
122 const MIDIMappingBusProto &bus_mapping = mapping_proto.bus_mapping(bus_idx);
123 const FieldDescriptor *descriptor = bus_mapping.GetDescriptor()->FindFieldByNumber(field_number);
124 const Reflection *bus_reflection = bus_mapping.GetReflection();
125 if (!bus_reflection->HasField(bus_mapping, descriptor)) {
126 return default_value;
128 const MIDIButtonProto &bus_proto =
129 static_cast<const MIDIButtonProto &>(bus_reflection->GetMessage(bus_mapping, descriptor));
130 return bus_proto.note_number();
133 int get_light_mapping(const MIDIMappingProto &mapping_proto, size_t bus_idx, int field_number, int default_value)
135 if (bus_idx >= size_t(mapping_proto.bus_mapping_size())) {
136 return default_value;
139 const MIDIMappingBusProto &bus_mapping = mapping_proto.bus_mapping(bus_idx);
140 const FieldDescriptor *descriptor = bus_mapping.GetDescriptor()->FindFieldByNumber(field_number);
141 const Reflection *bus_reflection = bus_mapping.GetReflection();
142 if (!bus_reflection->HasField(bus_mapping, descriptor)) {
143 return default_value;
145 const MIDILightProto &bus_proto =
146 static_cast<const MIDILightProto &>(bus_reflection->GetMessage(bus_mapping, descriptor));
147 return bus_proto.note_number();
152 MIDIMappingDialog::MIDIMappingDialog(MIDIMapper *mapper)
153 : ui(new Ui::MIDIMappingDialog),
158 const MIDIMappingProto mapping_proto = mapper->get_current_mapping(); // Take a copy.
159 old_receiver = mapper->set_receiver(this);
163 labels << "Controller bank";
164 for (unsigned bus_idx = 0; bus_idx < num_buses; ++bus_idx) {
166 snprintf(buf, sizeof(buf), "Bus %d", bus_idx + 1);
170 ui->treeWidget->setColumnCount(num_buses + 3);
171 ui->treeWidget->setHeaderLabels(labels);
173 add_controls("Per-bus controllers", ControlType::CONTROLLER, SpinnerGroup::PER_BUS_CONTROLLERS, mapping_proto, per_bus_controllers);
174 add_controls("Per-bus buttons", ControlType::BUTTON, SpinnerGroup::PER_BUS_BUTTONS, mapping_proto, per_bus_buttons);
175 add_controls("Per-bus lights", ControlType::LIGHT, SpinnerGroup::PER_BUS_LIGHTS, mapping_proto, per_bus_lights);
176 add_controls("Global controllers", ControlType::CONTROLLER, SpinnerGroup::GLOBAL_CONTROLLERS, mapping_proto, global_controllers);
177 add_controls("Global buttons", ControlType::BUTTON, SpinnerGroup::GLOBAL_BUTTONS, mapping_proto, global_buttons);
178 add_controls("Global lights", ControlType::LIGHT, SpinnerGroup::GLOBAL_LIGHTS, mapping_proto, global_lights);
179 fill_controls_from_mapping(mapping_proto);
181 // Auto-resize every column but the last.
182 for (unsigned column_idx = 0; column_idx < num_buses + 3; ++column_idx) {
183 ui->treeWidget->resizeColumnToContents(column_idx);
186 connect(ui->guess_bus_button, &QPushButton::clicked,
187 bind(&MIDIMappingDialog::guess_clicked, this, false));
188 connect(ui->guess_group_button, &QPushButton::clicked,
189 bind(&MIDIMappingDialog::guess_clicked, this, true));
190 connect(ui->ok_cancel_buttons, &QDialogButtonBox::accepted, this, &MIDIMappingDialog::ok_clicked);
191 connect(ui->ok_cancel_buttons, &QDialogButtonBox::rejected, this, &MIDIMappingDialog::cancel_clicked);
192 connect(ui->save_button, &QPushButton::clicked, this, &MIDIMappingDialog::save_clicked);
193 connect(ui->load_button, &QPushButton::clicked, this, &MIDIMappingDialog::load_clicked);
195 update_guess_button_state();
198 MIDIMappingDialog::~MIDIMappingDialog()
200 mapper->set_receiver(old_receiver);
201 mapper->refresh_highlights();
204 bool MIDIMappingDialog::eventFilter(QObject *obj, QEvent *event)
206 if (event->type() == QEvent::FocusIn ||
207 event->type() == QEvent::FocusOut) {
208 // We ignore the guess buttons themselves; it should be allowed
209 // to navigate from a spinner to focus on a button (to click it).
210 if (obj != ui->guess_bus_button && obj != ui->guess_group_button) {
211 update_guess_button_state();
217 void MIDIMappingDialog::guess_clicked(bool limit_to_group)
219 FocusInfo focus = find_focus();
220 if (focus.bus_idx == -1) {
221 // The guess button probably took the focus away from us.
224 assert(focus.bus_idx != -1); // The button should have been disabled.
225 pair<int, int> bus_and_offset = guess_offset(focus.bus_idx, limit_to_group ? focus.spinner_group : SpinnerGroup::ALL_GROUPS);
226 const int source_bus_idx = bus_and_offset.first;
227 const int offset = bus_and_offset.second;
228 assert(source_bus_idx != -1); // The button should have been disabled.
230 for (const auto &field_number_and_spinner : spinners[focus.bus_idx]) {
231 int field_number = field_number_and_spinner.first;
232 QSpinBox *spinner = field_number_and_spinner.second.spinner;
233 SpinnerGroup this_spinner_group = field_number_and_spinner.second.group;
235 if (limit_to_group && this_spinner_group != focus.spinner_group) {
239 assert(spinners[source_bus_idx].count(field_number));
240 QSpinBox *source_spinner = spinners[source_bus_idx][field_number].spinner;
241 assert(spinners[source_bus_idx][field_number].group == this_spinner_group);
243 if (source_spinner->value() != -1) {
244 spinner->setValue(source_spinner->value() + offset);
248 // See if we can find a “next” bus to move the focus to.
249 const int next_bus_idx = focus.bus_idx + (focus.bus_idx - source_bus_idx); // Note: Could become e.g. -1.
250 for (const InstantiatedSpinner &is : controller_spinners) {
251 if (int(is.bus_idx) == next_bus_idx && is.field_number == focus.field_number) {
252 is.spinner->setFocus();
255 for (const InstantiatedSpinner &is : button_spinners) {
256 if (int(is.bus_idx) == next_bus_idx && is.field_number == focus.field_number) {
257 is.spinner->setFocus();
260 for (const InstantiatedSpinner &is : light_spinners) {
261 if (int(is.bus_idx) == next_bus_idx && is.field_number == focus.field_number) {
262 is.spinner->setFocus();
267 void MIDIMappingDialog::ok_clicked()
269 unique_ptr<MIDIMappingProto> new_mapping = construct_mapping_proto_from_ui();
270 mapper->set_midi_mapping(*new_mapping);
271 mapper->set_receiver(old_receiver);
275 void MIDIMappingDialog::cancel_clicked()
277 mapper->set_receiver(old_receiver);
281 void MIDIMappingDialog::save_clicked()
283 unique_ptr<MIDIMappingProto> new_mapping = construct_mapping_proto_from_ui();
284 QString filename = QFileDialog::getSaveFileName(this,
285 "Save MIDI mapping", QString(), tr("Mapping files (*.midimapping)"));
286 if (!filename.endsWith(".midimapping")) {
287 filename += ".midimapping";
289 if (!save_midi_mapping_to_file(*new_mapping, filename.toStdString())) {
291 box.setText("Could not save mapping to '" + filename + "'. Check that you have the right permissions and try again.");
296 void MIDIMappingDialog::load_clicked()
298 QString filename = QFileDialog::getOpenFileName(this,
299 "Load MIDI mapping", QString(), tr("Mapping files (*.midimapping)"));
300 MIDIMappingProto new_mapping;
301 if (!load_midi_mapping_from_file(filename.toStdString(), &new_mapping)) {
303 box.setText("Could not load mapping from '" + filename + "'. Check that the file exists, has the right permissions and is valid.");
308 fill_controls_from_mapping(new_mapping);
314 T *get_mutable_bus_message(MIDIMappingProto *mapping_proto, unsigned bus_idx, int field_number)
316 while (size_t(mapping_proto->bus_mapping_size()) <= bus_idx) {
317 mapping_proto->add_bus_mapping();
320 MIDIMappingBusProto *bus_mapping = mapping_proto->mutable_bus_mapping(bus_idx);
321 const FieldDescriptor *descriptor = bus_mapping->GetDescriptor()->FindFieldByNumber(field_number);
322 const Reflection *bus_reflection = bus_mapping->GetReflection();
323 return static_cast<T *>(bus_reflection->MutableMessage(bus_mapping, descriptor));
328 unique_ptr<MIDIMappingProto> MIDIMappingDialog::construct_mapping_proto_from_ui()
330 unique_ptr<MIDIMappingProto> mapping_proto(new MIDIMappingProto);
331 for (const InstantiatedSpinner &is : controller_spinners) {
332 const int val = is.spinner->value();
337 MIDIControllerProto *controller_proto =
338 get_mutable_bus_message<MIDIControllerProto>(mapping_proto.get(), is.bus_idx, is.field_number);
339 controller_proto->set_controller_number(val);
341 for (const InstantiatedSpinner &is : button_spinners) {
342 const int val = is.spinner->value();
347 MIDIButtonProto *button_proto =
348 get_mutable_bus_message<MIDIButtonProto>(mapping_proto.get(), is.bus_idx, is.field_number);
349 button_proto->set_note_number(val);
351 for (const InstantiatedSpinner &is : light_spinners) {
352 const int val = is.spinner->value();
357 MIDILightProto *light_proto =
358 get_mutable_bus_message<MIDILightProto>(mapping_proto.get(), is.bus_idx, is.field_number);
359 light_proto->set_note_number(val);
361 int highest_bank_used = 0; // 1-indexed.
362 for (const InstantiatedComboBox &ic : bank_combo_boxes) {
363 const int val = ic.combo_box->currentIndex();
364 highest_bank_used = std::max(highest_bank_used, val);
369 const FieldDescriptor *descriptor = mapping_proto->GetDescriptor()->FindFieldByNumber(ic.field_number);
370 const Reflection *bus_reflection = mapping_proto->GetReflection();
371 bus_reflection->SetInt32(mapping_proto.get(), descriptor, val - 1);
373 mapping_proto->set_num_controller_banks(highest_bank_used);
374 return mapping_proto;
377 void MIDIMappingDialog::add_bank_selector(QTreeWidgetItem *item, const MIDIMappingProto &mapping_proto, int bank_field_number)
379 if (bank_field_number == 0) {
382 QComboBox *bank_selector = new QComboBox(this);
383 bank_selector->addItems(QStringList() << "" << "Bank 1" << "Bank 2" << "Bank 3" << "Bank 4" << "Bank 5");
384 bank_selector->setAutoFillBackground(true);
386 bank_combo_boxes.push_back(InstantiatedComboBox{ bank_selector, bank_field_number });
388 ui->treeWidget->setItemWidget(item, 1, bank_selector);
391 void MIDIMappingDialog::add_controls(const string &heading,
392 MIDIMappingDialog::ControlType control_type,
393 MIDIMappingDialog::SpinnerGroup spinner_group,
394 const MIDIMappingProto &mapping_proto,
395 const vector<MIDIMappingDialog::Control> &controls)
397 QTreeWidgetItem *heading_item = new QTreeWidgetItem(ui->treeWidget);
398 heading_item->setText(0, QString::fromStdString(heading));
399 heading_item->setFirstColumnSpanned(true);
400 heading_item->setExpanded(true);
401 for (const Control &control : controls) {
402 QTreeWidgetItem *item = new QTreeWidgetItem(heading_item);
403 heading_item->addChild(item);
404 add_bank_selector(item, mapping_proto, control.bank_field_number);
405 item->setText(0, QString::fromStdString(control.label + " "));
407 for (unsigned bus_idx = 0; bus_idx < num_buses; ++bus_idx) {
408 QSpinBox *spinner = new QSpinBox(this);
409 spinner->setRange(-1, 127);
410 spinner->setAutoFillBackground(true);
411 spinner->setSpecialValueText("\u200d"); // Zero-width joiner (ie., empty).
412 spinner->installEventFilter(this); // So we know when the focus changes.
413 ui->treeWidget->setItemWidget(item, bus_idx + 2, spinner);
415 if (control_type == ControlType::CONTROLLER) {
416 controller_spinners.push_back(InstantiatedSpinner{ spinner, bus_idx, spinner_group, control.field_number });
417 } else if (control_type == ControlType::BUTTON) {
418 button_spinners.push_back(InstantiatedSpinner{ spinner, bus_idx, spinner_group, control.field_number });
420 assert(control_type == ControlType::LIGHT);
421 light_spinners.push_back(InstantiatedSpinner{ spinner, bus_idx, spinner_group, control.field_number });
423 spinners[bus_idx][control.field_number] = SpinnerAndGroup{ spinner, spinner_group };
424 connect(spinner, static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged),
425 bind(&MIDIMappingDialog::update_guess_button_state, this));
428 ui->treeWidget->addTopLevelItem(heading_item);
431 void MIDIMappingDialog::fill_controls_from_mapping(const MIDIMappingProto &mapping_proto)
433 for (const InstantiatedSpinner &is : controller_spinners) {
434 is.spinner->setValue(get_controller_mapping(mapping_proto, is.bus_idx, is.field_number, -1));
436 for (const InstantiatedSpinner &is : button_spinners) {
437 is.spinner->setValue(get_button_mapping(mapping_proto, is.bus_idx, is.field_number, -1));
439 for (const InstantiatedSpinner &is : light_spinners) {
440 is.spinner->setValue(get_light_mapping(mapping_proto, is.bus_idx, is.field_number, -1));
442 for (const InstantiatedComboBox &ic : bank_combo_boxes) {
443 ic.combo_box->setCurrentIndex(get_bank(mapping_proto, ic.field_number, -1) + 1);
447 void MIDIMappingDialog::controller_changed(unsigned controller)
449 post_to_main_thread([=]{
450 for (const InstantiatedSpinner &is : controller_spinners) {
451 if (is.spinner->hasFocus()) {
452 is.spinner->setValue(controller);
453 is.spinner->selectAll();
459 void MIDIMappingDialog::note_on(unsigned note)
461 post_to_main_thread([=]{
462 for (const InstantiatedSpinner &is : button_spinners) {
463 if (is.spinner->hasFocus()) {
464 is.spinner->setValue(note);
465 is.spinner->selectAll();
468 for (const InstantiatedSpinner &is : light_spinners) {
469 if (is.spinner->hasFocus()) {
470 is.spinner->setValue(note);
471 is.spinner->selectAll();
477 pair<int, int> MIDIMappingDialog::guess_offset(unsigned bus_idx, MIDIMappingDialog::SpinnerGroup spinner_group)
479 constexpr pair<int, int> not_found(-1, 0);
481 if (bus_is_empty(bus_idx, spinner_group)) {
485 // See if we can find a non-empty bus to source from (prefer from the left).
486 unsigned source_bus_idx;
487 if (bus_idx > 0 && !bus_is_empty(bus_idx - 1, spinner_group)) {
488 source_bus_idx = bus_idx - 1;
489 } else if (bus_idx < num_buses - 1 && !bus_is_empty(bus_idx + 1, spinner_group)) {
490 source_bus_idx = bus_idx + 1;
495 // See if we can find a consistent offset.
496 bool found_offset = false;
498 int minimum_allowed_offset = numeric_limits<int>::min();
499 int maximum_allowed_offset = numeric_limits<int>::max();
500 for (const auto &field_number_and_spinner : spinners[bus_idx]) {
501 int field_number = field_number_and_spinner.first;
502 QSpinBox *spinner = field_number_and_spinner.second.spinner;
503 SpinnerGroup this_spinner_group = field_number_and_spinner.second.group;
504 assert(spinners[source_bus_idx].count(field_number));
505 QSpinBox *source_spinner = spinners[source_bus_idx][field_number].spinner;
506 assert(spinners[source_bus_idx][field_number].group == this_spinner_group);
508 if (spinner_group != SpinnerGroup::ALL_GROUPS &&
509 spinner_group != this_spinner_group) {
512 if (spinner->value() == -1) {
513 if (source_spinner->value() != -1) {
514 // If the source value is e.g. 3, offset can't be less than -2 or larger than 124.
515 // Otherwise, we'd extrapolate values outside [1..127].
516 minimum_allowed_offset = max(minimum_allowed_offset, 1 - source_spinner->value());
517 maximum_allowed_offset = min(maximum_allowed_offset, 127 - source_spinner->value());
521 if (source_spinner->value() == -1) {
522 // The bus has a controller set that the source bus doesn't set.
526 int candidate_offset = spinner->value() - source_spinner->value();
528 offset = candidate_offset;
530 } else if (candidate_offset != offset) {
536 // Given that the bus wasn't empty, this shouldn't happen.
541 if (offset < minimum_allowed_offset || offset > maximum_allowed_offset) {
544 return make_pair(source_bus_idx, offset);
547 bool MIDIMappingDialog::bus_is_empty(unsigned bus_idx, SpinnerGroup spinner_group)
549 for (const auto &field_number_and_spinner : spinners[bus_idx]) {
550 QSpinBox *spinner = field_number_and_spinner.second.spinner;
551 SpinnerGroup this_spinner_group = field_number_and_spinner.second.group;
552 if (spinner_group != SpinnerGroup::ALL_GROUPS &&
553 spinner_group != this_spinner_group) {
556 if (spinner->value() != -1) {
563 void MIDIMappingDialog::update_guess_button_state()
565 FocusInfo focus = find_focus();
566 if (focus.bus_idx < 0) {
570 pair<int, int> bus_and_offset = guess_offset(focus.bus_idx, SpinnerGroup::ALL_GROUPS);
571 ui->guess_bus_button->setEnabled(bus_and_offset.first != -1);
574 pair<int, int> bus_and_offset = guess_offset(focus.bus_idx, focus.spinner_group);
575 ui->guess_group_button->setEnabled(bus_and_offset.first != -1);
580 MIDIMappingDialog::FocusInfo MIDIMappingDialog::find_focus() const
582 for (const InstantiatedSpinner &is : controller_spinners) {
583 if (is.spinner->hasFocus()) {
584 return FocusInfo{ int(is.bus_idx), is.spinner_group, is.field_number };
587 for (const InstantiatedSpinner &is : button_spinners) {
588 if (is.spinner->hasFocus()) {
589 return FocusInfo{ int(is.bus_idx), is.spinner_group, is.field_number };
592 for (const InstantiatedSpinner &is : light_spinners) {
593 if (is.spinner->hasFocus()) {
594 return FocusInfo{ int(is.bus_idx), is.spinner_group, is.field_number };
597 return FocusInfo{ -1, SpinnerGroup::ALL_GROUPS, -1 };