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

   1 #include "mainwindow.h"
   2
   3 #include <math.h>
   4 #include <stdio.h>
   5 #include <algorithm>
   6 #include <string>
   7 #include <vector>
   8 #include <QBoxLayout>
   9 #include <QKeySequence>
  10 #include <QLabel>
  11 #include <QMetaType>
  12 #include <QPushButton>
  13 #include <QResizeEvent>
  14 #include <QShortcut>
  15 #include <QSignalMapper>
  16 #include <QSize>
  17 #include <QString>
  18
  19 #include "glwidget.h"
  20 #include "lrameter.h"
  21 #include "mixer.h"
  22 #include "ui_mainwindow.h"
  23 #include "vumeter.h"
  24
  25 class QResizeEvent;
  26
  27 using namespace std;
  28
  29 Q_DECLARE_METATYPE(std::vector<std::string>);
  30
  31 MainWindow *global_mainwindow = nullptr;
  32
  33 MainWindow::MainWindow()
  34         : ui(new Ui::MainWindow)
  35 {
  36         global_mainwindow = this;
  37         ui->setupUi(this);
  38
  39         ui->me_live->set_output(Mixer::OUTPUT_LIVE);
  40         ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
  41
  42         // TODO: Ask for the real number.
  43         ui->preview1->set_output(Mixer::OUTPUT_INPUT0);
  44         ui->preview2->set_output(Mixer::OUTPUT_INPUT1);
  45         ui->preview3->set_output(Mixer::OUTPUT_INPUT2);
  46
  47         // Hook up the preview clicks.
  48         {
  49                 QSignalMapper *mapper = new QSignalMapper(this);
  50                 mapper->setMapping(ui->preview1, 0),
  51                 mapper->setMapping(ui->preview2, 1);
  52                 mapper->setMapping(ui->preview3, 2);
  53                 connect(ui->preview1, SIGNAL(clicked()), mapper, SLOT(map()));
  54                 connect(ui->preview2, SIGNAL(clicked()), mapper, SLOT(map()));
  55                 connect(ui->preview3, SIGNAL(clicked()), mapper, SLOT(map()));
  56
  57                 connect(mapper, SIGNAL(mapped(int)), this, SLOT(channel_clicked(int)));
  58         }
  59
  60         // Hook up the preview keyboard keys.
  61         {
  62                 QSignalMapper *mapper = new QSignalMapper(this);
  63                 QShortcut *shortcut1 = new QShortcut(QKeySequence(Qt::Key_1), this);
  64                 connect(shortcut1, SIGNAL(activated()), mapper, SLOT(map()));
  65                 QShortcut *shortcut2 = new QShortcut(QKeySequence(Qt::Key_2), this);
  66                 connect(shortcut2, SIGNAL(activated()), mapper, SLOT(map()));
  67                 QShortcut *shortcut3 = new QShortcut(QKeySequence(Qt::Key_3), this);
  68                 connect(shortcut3, SIGNAL(activated()), mapper, SLOT(map()));
  69                 mapper->setMapping(shortcut1, 0),
  70                 mapper->setMapping(shortcut2, 1);
  71                 mapper->setMapping(shortcut3, 2);
  72
  73                 connect(mapper, SIGNAL(mapped(int)), this, SLOT(channel_clicked(int)));
  74         }
  75
  76         // Hook up the transition buttons.
  77         // TODO: Make them dynamic.
  78         {
  79                 QSignalMapper *mapper = new QSignalMapper(this);
  80                 mapper->setMapping(ui->transition_btn1, 0),
  81                 mapper->setMapping(ui->transition_btn2, 1);
  82                 mapper->setMapping(ui->transition_btn3, 2);
  83                 connect(ui->transition_btn1, SIGNAL(clicked()), mapper, SLOT(map()));
  84                 connect(ui->transition_btn2, SIGNAL(clicked()), mapper, SLOT(map()));
  85                 connect(ui->transition_btn3, SIGNAL(clicked()), mapper, SLOT(map()));
  86                 connect(mapper, SIGNAL(mapped(int)), this, SLOT(transition_clicked(int)));
  87         }
  88
  89         // Aiee...
  90         transition_btn1 = ui->transition_btn1;
  91         transition_btn2 = ui->transition_btn2;
  92         transition_btn3 = ui->transition_btn3;
  93         qRegisterMetaType<std::vector<std::string>>("std::vector<std::string>");
  94         connect(ui->preview1, SIGNAL(transition_names_updated(std::vector<std::string>)),
  95                 this, SLOT(set_transition_names(std::vector<std::string>)));
  96 }
  97
  98 void MainWindow::resizeEvent(QResizeEvent* event)
  99 {
 100         QMainWindow::resizeEvent(event);
 101
 102         // Ask for a relayout, but only after the event loop is done doing relayout
 103         // on everything else.
 104         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 105 }
 106
 107 void MainWindow::mixer_created(Mixer *mixer)
 108 {
 109         mixer->set_audio_level_callback([this](float level_lufs, float peak_db, float global_level_lufs, float range_low_lufs, float range_high_lufs){
 110                 ui->vu_meter->set_level(level_lufs);
 111                 ui->lra_meter->set_levels(global_level_lufs, range_low_lufs, range_high_lufs);
 112
 113                 char buf[256];
 114                 snprintf(buf, sizeof(buf), "%.1f", peak_db);
 115                 ui->peak_display->setText(buf);
 116                 if (peak_db > -0.1f) {  // -0.1 dBFS is EBU peak limit.
 117                         ui->peak_display->setStyleSheet("QLabel { background-color: red; color: white; }");
 118                 } else {
 119                         ui->peak_display->setStyleSheet("");
 120                 }
 121         });
 122 }
 123
 124 void MainWindow::relayout()
 125 {
 126         int width = size().width();
 127         int height = size().height();
 128
 129         // Allocate the height; the most important part is to keep the main displays
 130         // at 16:9 if at all possible.
 131         double me_width = ui->me_preview->width();
 132         double me_height = me_width * 9.0 / 16.0 + ui->label_preview->height();
 133
 134         // TODO: Scale the widths when we need to do this.
 135         if (me_height / double(height) > 0.8) {
 136                 me_height = height * 0.8;
 137         }
 138
 139         // The previews will be constrained by the remaining height, and the width.
 140         // FIXME: spacing?
 141         double preview_height = std::min(height - me_height, (width / 4.0) * 9.0 / 16.0);
 142
 143         ui->vertical_layout->setStretch(0, lrintf(me_height));
 144         ui->vertical_layout->setStretch(1, std::max<int>(1, lrintf(height - me_height - preview_height)));
 145         ui->vertical_layout->setStretch(2, lrintf(preview_height));
 146
 147         // Set the widths for the previews.
 148         double preview_width = preview_height * 16.0 / 9.0;  // FIXME: spacing?
 149
 150         ui->preview_displays->setStretch(0, lrintf(preview_width));
 151         ui->preview_displays->setStretch(1, lrintf(preview_width));
 152         ui->preview_displays->setStretch(2, lrintf(preview_width));
 153         ui->preview_displays->setStretch(3, lrintf(preview_width));
 154         ui->preview_displays->setStretch(4, lrintf(width - 4.0 * preview_width));
 155 }
 156
 157 void MainWindow::set_transition_names(vector<string> transition_names)
 158 {
 159         if (transition_names.size() < 1) {
 160                 transition_btn1->setText(QString(""));
 161         } else {
 162                 transition_btn1->setText(QString::fromStdString(transition_names[0]));
 163         }
 164         if (transition_names.size() < 2) {
 165                 transition_btn2->setText(QString(""));
 166         } else {
 167                 transition_btn2->setText(QString::fromStdString(transition_names[1]));
 168         }
 169         if (transition_names.size() < 3) {
 170                 transition_btn3->setText(QString(""));
 171         } else {
 172                 transition_btn3->setText(QString::fromStdString(transition_names[2]));
 173         }
 174 }
 175
 176 void MainWindow::transition_clicked(int transition_number)
 177 {
 178         global_mixer->transition_clicked(transition_number);
 179 }
 180
 181 void MainWindow::channel_clicked(int channel_number)
 182 {
 183         global_mixer->channel_clicked(channel_number);
 184 }