1 #include "mainwindow.h"
9 #include <QKeySequence>
12 #include <QPushButton>
13 #include <QResizeEvent>
21 #include "post_to_main_thread.h"
22 #include "ui_display.h"
23 #include "ui_mainwindow.h"
30 Q_DECLARE_METATYPE(std::vector<std::string>);
32 MainWindow *global_mainwindow = nullptr;
34 MainWindow::MainWindow()
35 : ui(new Ui::MainWindow)
37 global_mainwindow = this;
40 ui->me_live->set_output(Mixer::OUTPUT_LIVE);
41 ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
43 // Hook up the transition buttons.
44 // TODO: Make them dynamic.
45 connect(ui->transition_btn1, &QPushButton::clicked, std::bind(&MainWindow::transition_clicked, this, 0));
46 connect(ui->transition_btn2, &QPushButton::clicked, std::bind(&MainWindow::transition_clicked, this, 1));
47 connect(ui->transition_btn3, &QPushButton::clicked, std::bind(&MainWindow::transition_clicked, this, 2));
50 transition_btn1 = ui->transition_btn1;
51 transition_btn2 = ui->transition_btn2;
52 transition_btn3 = ui->transition_btn3;
53 qRegisterMetaType<std::vector<std::string>>("std::vector<std::string>");
54 connect(ui->me_preview, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names);
57 void MainWindow::resizeEvent(QResizeEvent* event)
59 QMainWindow::resizeEvent(event);
61 // Ask for a relayout, but only after the event loop is done doing relayout
62 // on everything else.
63 QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
66 void MainWindow::mixer_created(Mixer *mixer)
69 unsigned num_previews = mixer->get_num_channels();
71 for (unsigned i = 0; i < num_previews; ++i) {
72 Mixer::Output output = Mixer::Output(Mixer::OUTPUT_INPUT0 + i);
74 QWidget *preview = new QWidget(this);
75 Ui::Display *ui_display = new Ui::Display;
76 ui_display->setupUi(preview);
77 ui_display->label->setText(mixer->get_channel_name(output).c_str());
78 ui_display->display->set_output(output);
79 ui->preview_displays->insertWidget(previews.size(), preview, 1);
80 previews.push_back(ui_display);
83 connect(ui_display->display, &GLWidget::clicked, std::bind(&MainWindow::channel_clicked, this, i));
85 // Hook up the keyboard key.
86 QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
87 connect(shortcut, &QShortcut::activated, std::bind(&MainWindow::channel_clicked, this, i));
89 // Hook up the white balance button (irrelevant if invisible).
90 ui_display->wb_button->setVisible(mixer->get_supports_set_wb(output));
91 connect(ui_display->wb_button, &QPushButton::clicked, std::bind(&MainWindow::wb_button_clicked, this, i));
94 mixer->set_audio_level_callback([this](float level_lufs, float peak_db, float global_level_lufs, float range_low_lufs, float range_high_lufs, float auto_gain_staging_db){
95 post_to_main_thread([=]() {
96 ui->vu_meter->set_level(level_lufs);
97 ui->lra_meter->set_levels(global_level_lufs, range_low_lufs, range_high_lufs);
100 snprintf(buf, sizeof(buf), "%.1f", peak_db);
101 ui->peak_display->setText(buf);
102 if (peak_db > -0.1f) { // -0.1 dBFS is EBU peak limit.
103 ui->peak_display->setStyleSheet("QLabel { background-color: red; color: white; }");
105 ui->peak_display->setStyleSheet("");
108 ui->gainstaging_knob->setValue(lrintf(auto_gain_staging_db * 10.0f));
109 snprintf(buf, sizeof(buf), "%+.1f dB", auto_gain_staging_db);
110 ui->gainstaging_db_display->setText(buf);
115 void MainWindow::relayout()
117 int height = ui->vertical_layout->geometry().height();
119 double remaining_height = height;
121 // Allocate the height; the most important part is to keep the main displays
122 // at 16:9 if at all possible.
123 double me_width = ui->me_preview->width();
124 double me_height = me_width * 9.0 / 16.0 + ui->label_preview->height() + ui->preview_vertical_layout->spacing();
126 // TODO: Scale the widths when we need to do this.
127 if (me_height / double(height) > 0.8) {
128 me_height = height * 0.8;
130 remaining_height -= me_height + ui->vertical_layout->spacing();
132 double audiostrip_height = ui->audiostrip->geometry().height();
133 remaining_height -= audiostrip_height + ui->vertical_layout->spacing();
135 // The previews will be constrained by the remaining height, and the width.
136 double preview_label_height = previews[0]->title_bar->geometry().height() + ui->preview_displays->spacing(); // Wrong spacing?
137 int preview_total_width = ui->preview_displays->geometry().width();
138 double preview_height = std::min(remaining_height - preview_label_height, (preview_total_width / double(previews.size())) * 9.0 / 16.0);
139 remaining_height -= preview_height + preview_label_height + ui->vertical_layout->spacing();
141 ui->vertical_layout->setStretch(0, lrintf(me_height));
142 ui->vertical_layout->setStretch(1, 0); // Don't stretch the audiostrip.
143 ui->vertical_layout->setStretch(2, std::max<int>(1, remaining_height)); // Spacer.
144 ui->vertical_layout->setStretch(3, lrintf(preview_height + preview_label_height));
146 // Set the widths for the previews.
147 double preview_width = preview_height * 16.0 / 9.0;
148 double remaining_preview_width = preview_total_width;
150 for (unsigned i = 0; i < previews.size(); ++i) {
151 ui->preview_displays->setStretch(i, lrintf(preview_width));
152 remaining_preview_width -= preview_width + ui->preview_displays->spacing();
155 // The preview horizontal spacer.
156 ui->preview_displays->setStretch(previews.size(), lrintf(remaining_preview_width));
159 void MainWindow::set_transition_names(vector<string> transition_names)
161 if (transition_names.size() < 1) {
162 transition_btn1->setText(QString(""));
164 transition_btn1->setText(QString::fromStdString(transition_names[0]));
166 if (transition_names.size() < 2) {
167 transition_btn2->setText(QString(""));
169 transition_btn2->setText(QString::fromStdString(transition_names[1]));
171 if (transition_names.size() < 3) {
172 transition_btn3->setText(QString(""));
174 transition_btn3->setText(QString::fromStdString(transition_names[2]));
178 void MainWindow::transition_clicked(int transition_number)
180 global_mixer->transition_clicked(transition_number);
183 void MainWindow::channel_clicked(int channel_number)
185 if (current_wb_pick_display == channel_number) {
186 // The picking was already done from eventFilter(), since we don't get
187 // the mouse pointer here.
189 global_mixer->channel_clicked(channel_number);
193 void MainWindow::wb_button_clicked(int channel_number)
195 current_wb_pick_display = channel_number;
196 QApplication::setOverrideCursor(Qt::CrossCursor);
199 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
201 if (current_wb_pick_display != -1 &&
202 event->type() == QEvent::MouseButtonRelease &&
203 watched->isWidgetType()) {
204 QApplication::restoreOverrideCursor();
205 if (watched == previews[current_wb_pick_display]->display) {
206 const QMouseEvent *mouse_event = (QMouseEvent *)event;
207 set_white_balance(current_wb_pick_display, mouse_event->x(), mouse_event->y());
209 // The user clicked on something else, give up.
210 // (The click goes through, which might not be ideal, but, yes.)
211 current_wb_pick_display = -1;
219 double srgb_to_linear(double x)
224 return pow((x + 0.055) / 1.055, 2.4);
230 void MainWindow::set_white_balance(int channel_number, int x, int y)
232 // Set the white balance to neutral for the grab. It's probably going to
233 // flicker a bit, but hopefully this display is not live anyway.
234 global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, 0.5, 0.5, 0.5);
235 previews[channel_number]->display->updateGL();
236 QRgb reference_color = previews[channel_number]->display->grabFrameBuffer().pixel(x, y);
238 double r = srgb_to_linear(qRed(reference_color) / 255.0);
239 double g = srgb_to_linear(qGreen(reference_color) / 255.0);
240 double b = srgb_to_linear(qBlue(reference_color) / 255.0);
241 global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, r, g, b);
242 previews[channel_number]->display->updateGL();