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