git.sesse.net Git - nageru/blob - mainwindow.cpp

   1 #include "mainwindow.h"
   2 #include <thread>
   3 #include <vector>
   4 #include <string>
   5 #include <QSignalMapper>
   6 #include <QMetaType>
   7 #include <QShortcut>
   8 #include <QResizeEvent>
   9
  10 #include "context.h"
  11 #include "mixer.h"
  12
  13 #include "ui_mainwindow.h"
  14
  15 using namespace std;
  16
  17 Q_DECLARE_METATYPE(std::vector<std::string>);
  18
  19 MainWindow *global_mainwindow = nullptr;
  20
  21 MainWindow::MainWindow()
  22         : ui(new Ui::MainWindow)
  23 {
  24         global_mainwindow = this;
  25         ui->setupUi(this);
  26
  27         ui->me_live->set_output(Mixer::OUTPUT_LIVE);
  28         ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
  29
  30         // TODO: Ask for the real number.
  31         ui->preview1->set_output(Mixer::OUTPUT_INPUT0);
  32         ui->preview2->set_output(Mixer::OUTPUT_INPUT1);
  33         ui->preview3->set_output(Mixer::OUTPUT_INPUT2);
  34
  35         // Hook up the preview clicks.
  36         {
  37                 QSignalMapper *mapper = new QSignalMapper(this);
  38                 mapper->setMapping(ui->preview1, 0),
  39                 mapper->setMapping(ui->preview2, 1);
  40                 mapper->setMapping(ui->preview3, 2);
  41                 connect(ui->preview1, SIGNAL(clicked()), mapper, SLOT(map()));
  42                 connect(ui->preview2, SIGNAL(clicked()), mapper, SLOT(map()));
  43                 connect(ui->preview3, SIGNAL(clicked()), mapper, SLOT(map()));
  44
  45                 connect(mapper, SIGNAL(mapped(int)), this, SLOT(channel_clicked(int)));
  46         }
  47
  48         // Hook up the preview keyboard keys.
  49         {
  50                 QSignalMapper *mapper = new QSignalMapper(this);
  51                 QShortcut *shortcut1 = new QShortcut(QKeySequence(Qt::Key_1), this);
  52                 connect(shortcut1, SIGNAL(activated()), mapper, SLOT(map()));
  53                 QShortcut *shortcut2 = new QShortcut(QKeySequence(Qt::Key_2), this);
  54                 connect(shortcut2, SIGNAL(activated()), mapper, SLOT(map()));
  55                 QShortcut *shortcut3 = new QShortcut(QKeySequence(Qt::Key_3), this);
  56                 connect(shortcut3, SIGNAL(activated()), mapper, SLOT(map()));
  57                 mapper->setMapping(shortcut1, 0),
  58                 mapper->setMapping(shortcut2, 1);
  59                 mapper->setMapping(shortcut3, 2);
  60
  61                 connect(mapper, SIGNAL(mapped(int)), this, SLOT(channel_clicked(int)));
  62         }
  63
  64         // Hook up the transition buttons.
  65         // TODO: Make them dynamic.
  66         {
  67                 QSignalMapper *mapper = new QSignalMapper(this);
  68                 mapper->setMapping(ui->transition_btn1, 0),
  69                 mapper->setMapping(ui->transition_btn2, 1);
  70                 mapper->setMapping(ui->transition_btn3, 2);
  71                 connect(ui->transition_btn1, SIGNAL(clicked()), mapper, SLOT(map()));
  72                 connect(ui->transition_btn2, SIGNAL(clicked()), mapper, SLOT(map()));
  73                 connect(ui->transition_btn3, SIGNAL(clicked()), mapper, SLOT(map()));
  74                 connect(mapper, SIGNAL(mapped(int)), this, SLOT(transition_clicked(int)));
  75         }
  76
  77         // Aiee...
  78         transition_btn1 = ui->transition_btn1;
  79         transition_btn2 = ui->transition_btn2;
  80         transition_btn3 = ui->transition_btn3;
  81         qRegisterMetaType<std::vector<std::string>>("std::vector<std::string>");
  82         connect(ui->preview1, SIGNAL(transition_names_updated(std::vector<std::string>)),
  83                 this, SLOT(set_transition_names(std::vector<std::string>)));
  84 }
  85
  86 void MainWindow::resizeEvent(QResizeEvent* event)
  87 {
  88         QMainWindow::resizeEvent(event);
  89
  90         // Ask for a relayout, but only after the event loop is done doing relayout
  91         // on everything else.
  92         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
  93 }
  94
  95 void MainWindow::mixer_created(Mixer *mixer)
  96 {
  97         mixer->set_audio_level_callback([this](float level_lufs, float peak_db){
  98                 ui->vu_meter->set_level(level_lufs);
  99
 100                 char buf[256];
 101                 snprintf(buf, sizeof(buf), "%.1f", peak_db);
 102                 ui->peak_display->setText(buf);
 103                 if (peak_db > -0.1f) {  // -0.1 dBFS is EBU peak limit.
 104                         ui->peak_display->setStyleSheet("QLabel { background-color: red; color: white; }");
 105                 } else {
 106                         ui->peak_display->setStyleSheet("");
 107                 }
 108         });
 109 }
 110
 111 void MainWindow::relayout()
 112 {
 113         int width = size().width();
 114         int height = size().height();
 115
 116         // Allocate the height; the most important part is to keep the main displays
 117         // at 16:9 if at all possible.
 118         double me_width = ui->me_preview->width();
 119         double me_height = me_width * 9.0 / 16.0 + ui->label_preview->height();
 120
 121         // TODO: Scale the widths when we need to do this.
 122         if (me_height / double(height) > 0.8) {
 123                 me_height = height * 0.8;
 124         }
 125
 126         // The previews will be constrained by the remaining height, and the width.
 127         // FIXME: spacing?
 128         double preview_height = std::min(height - me_height, (width / 4.0) * 9.0 / 16.0);
 129
 130         ui->vertical_layout->setStretch(0, lrintf(me_height));
 131         ui->vertical_layout->setStretch(1, std::max<int>(1, lrintf(height - me_height - preview_height)));
 132         ui->vertical_layout->setStretch(2, lrintf(preview_height));
 133
 134         // Set the widths for the previews.
 135         double preview_width = preview_height * 16.0 / 9.0;  // FIXME: spacing?
 136
 137         ui->preview_displays->setStretch(0, lrintf(preview_width));
 138         ui->preview_displays->setStretch(1, lrintf(preview_width));
 139         ui->preview_displays->setStretch(2, lrintf(preview_width));
 140         ui->preview_displays->setStretch(3, lrintf(preview_width));
 141         ui->preview_displays->setStretch(4, lrintf(width - 4.0 * preview_width));
 142 }
 143
 144 void MainWindow::set_transition_names(vector<string> transition_names)
 145 {
 146         if (transition_names.size() < 1) {
 147                 transition_btn1->setText(QString(""));
 148         } else {
 149                 transition_btn1->setText(QString::fromStdString(transition_names[0]));
 150         }
 151         if (transition_names.size() < 2) {
 152                 transition_btn2->setText(QString(""));
 153         } else {
 154                 transition_btn2->setText(QString::fromStdString(transition_names[1]));
 155         }
 156         if (transition_names.size() < 3) {
 157                 transition_btn3->setText(QString(""));
 158         } else {
 159                 transition_btn3->setText(QString::fromStdString(transition_names[2]));
 160         }
 161 }
 162
 163 void MainWindow::transition_clicked(int transition_number)
 164 {
 165         global_mixer->transition_clicked(transition_number);
 166 }
 167
 168 void MainWindow::channel_clicked(int channel_number)
 169 {
 170         global_mixer->channel_clicked(channel_number);
 171 }