#include "maingui.h"

#include <QtWidgets/qboxlayout.h>

#include <QtWidgets/qgroupbox.h>

#include <QtWidgets/qradiobutton.h>

#include <QtWidgets/qlabel.h>

#include <QtWidgets/qlineedit.h>

#include <QtWidgets/qcheckbox.h>

#include <QtCore/qelapsedtimer.h>

class MainGui::Ui : public QWidget {

public:

Ui(QWidget* parent = nullptr)

: QWidget{ parent } {

layout = new QVBoxLayout(this);

layout->setAlignment(Qt::AlignTop);

setLayout(layout);

mtrlGroup = new QGroupBox(this);

mtrlGroup->setTitle("Materials");

groupLayout = new QVBoxLayout(this);

mtrlGroup->setLayout(groupLayout);

milkRadio = new QRadioButton(this);

milkRadio->setText("Milk");

milkRadio->setChecked(true);

skinRadio = new QRadioButton(this);

skinRadio->setText("Skin");

groupLayout->addWidget(milkRadio);

groupLayout->addWidget(skinRadio);

layout->addWidget(mtrlGroup);

scaleLabel = new QLabel("Scale", this);

layout->addWidget(scaleLabel);

scaleEdit = new QLineEdit(this);

scaleEdit->setText("50.0");

layout->addWidget(scaleEdit);

reflCheckBox = new QCheckBox("Reflection", this);

reflCheckBox->setChecked(true);

layout->addWidget(reflCheckBox);

transCheckBox = new QCheckBox("Transmission", this);

transCheckBox->setChecked(true);

layout->addWidget(transCheckBox);

}

~Ui() {

delete milkRadio;

delete skinRadio;

delete groupLayout;

delete scaleLabel;

delete scaleEdit;

delete mtrlGroup;

delete reflCheckBox;

delete transCheckBox;

delete layout;

}

QRadioButton* milkRadio = nullptr;

QRadioButton* skinRadio = nullptr;

QGroupBox* mtrlGroup = nullptr;

QVBoxLayout* groupLayout = nullptr;

QLabel* scaleLabel = nullptr;

QLineEdit* scaleEdit = nullptr;

QCheckBox* reflCheckBox = nullptr;

QCheckBox* transCheckBox = nullptr;

QVBoxLayout* layout = nullptr;

};

MainGui::MainGui(QWidget* parent)

: QMainWindow{ parent } {

setFont(QFont("Meiryo UI"));

mainLayout = new QHBoxLayout();

mainWidget = new QWidget(this);

mainWidget->setLayout(mainLayout);

setCentralWidget(mainWidget);

viewer = new OpenGLViewer(this);

QSizePolicy viewPolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

viewPolicy.setHorizontalStretch(3);

viewer->setSizePolicy(viewPolicy);

mainLayout->addWidget(viewer);

ui = new Ui(this);

QSizePolicy uiPolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

uiPolicy.setHorizontalStretch(1);

ui->setSizePolicy(uiPolicy);

mainLayout->addWidget(ui);

connect(ui->milkRadio, SIGNAL(toggled(bool)), this, SLOT(OnRadioToggled(bool)));

connect(ui->skinRadio, SIGNAL(toggled(bool)), this, SLOT(OnRadioToggled(bool)));

connect(ui->scaleEdit, SIGNAL(editingFinished()), this, SLOT(OnScaleChanged()));

connect(ui->reflCheckBox, SIGNAL(stateChanged(int)), this, SLOT(OnCheckStateChanged(int)));

connect(ui->transCheckBox, SIGNAL(stateChanged(int)), this, SLOT(OnCheckStateChanged(int)));

connect(viewer, SIGNAL(frameSwapped()), this, SLOT(OnFrameSwapped()));

}

MainGui::~MainGui() {

delete viewer;

delete ui;

delete mainLayout;

delete mainWidget;

}

void MainGui::OnRadioToggled(bool state) {

if (ui->milkRadio->isChecked()) {

viewer->setMaterial("Milk");

} else if (ui->skinRadio->isChecked()) {

viewer->setMaterial("Skin");

}

}

void MainGui::OnScaleChanged() {

viewer->setMaterialScale(ui->scaleEdit->text().toDouble());

}

void MainGui::OnCheckStateChanged(int state) {

bool isRefl = ui->reflCheckBox->isChecked();

bool isTrans = ui->transCheckBox->isChecked();

viewer->setRenderComponents(isRefl, isTrans);

}

void MainGui::OnFrameSwapped() {

static bool isStarted = false;

static QElapsedTimer timer;

static long long lastTime;

if (!isStarted) {

isStarted = true;

timer.start();

lastTime = timer.elapsed();

} else {

long long currentTime = timer.elapsed();

double fps = 1000.0 / (currentTime - lastTime);

setWindowTitle(QString("FPS: %1").arg(QString::number(fps, 'f', 2)));

lastTime = currentTime;

}

}