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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "mainwindow.h"
#include "splineeditor.h"
#include <QtQuick/QQuickView>
#include <QtQml/QQmlContext>
#include <QEasingCurve>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QDoubleValidator>
#include <QDialog>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent)
{
    setWindowTitle("QML Easing Curve Editor");
    SplineEditor *splineEditor = new SplineEditor(this);

    QWidget *mainWidget = new QWidget(this);

    setCentralWidget(mainWidget);

    QHBoxLayout *hboxLayout = new QHBoxLayout(mainWidget);
    QVBoxLayout *vboxLayout = new QVBoxLayout();

    mainWidget->setLayout(hboxLayout);
    hboxLayout->addLayout(vboxLayout);

    QWidget *propertyWidget = new QWidget(this);
    ui_properties.setupUi(propertyWidget);

    ui_properties.spinBox->setMinimum(50);
    ui_properties.spinBox->setMaximum(10000);
    ui_properties.spinBox->setValue(500);

    hboxLayout->addWidget(propertyWidget);

    m_placeholder = new QWidget(this);

    m_placeholder->setFixedSize(quickView.size());

    vboxLayout->addWidget(splineEditor);
    vboxLayout->addWidget(m_placeholder);

    ui_properties.plainTextEdit->setPlainText(splineEditor->generateCode());
    connect(splineEditor, SIGNAL(easingCurveCodeChanged(QString)), ui_properties.plainTextEdit, SLOT(setPlainText(QString)));

    quickView.rootContext()->setContextProperty(QLatin1String("spinBox"), ui_properties.spinBox);

    const auto presetNames = splineEditor->presetNames();
    for (const QString &name : presetNames)
        ui_properties.comboBox->addItem(name);

    connect(ui_properties.comboBox, SIGNAL(currentIndexChanged(QString)), splineEditor, SLOT(setPreset(QString)));

    splineEditor->setPreset(ui_properties.comboBox->currentText());

    QVBoxLayout *groupBoxLayout = new QVBoxLayout(ui_properties.groupBox);
    groupBoxLayout->setContentsMargins(QMargins());
    ui_properties.groupBox->setLayout(groupBoxLayout);

    groupBoxLayout->addWidget(splineEditor->pointListWidget());
    m_splineEditor = splineEditor;
    connect(ui_properties.plainTextEdit, SIGNAL(textChanged()), this, SLOT(textEditTextChanged()));

    QDialog* importDialog = new QDialog(this);
    ui_import.setupUi(importDialog);
    ui_import.inInfluenceEdit->setValidator(new QDoubleValidator(this));
    ui_import.inSlopeEdit->setValidator(new QDoubleValidator(this));
    ui_import.outInfluenceEdit->setValidator(new QDoubleValidator(this));
    ui_import.outSlopeEdit->setValidator(new QDoubleValidator(this));
    connect(ui_properties.importButton, SIGNAL(clicked()), importDialog, SLOT(show()));
    connect(importDialog, SIGNAL(finished(int)), this, SLOT(importData(int)));

    initQml();
}

void MainWindow::showQuickView()
{
    const int margin = 16;
    quickView.setPosition(pos() + QPoint(0, frameGeometry().height() + margin));

    quickView.raise();
    quickView.show();
}

void MainWindow::textEditTextChanged()
{
    m_splineEditor->setEasingCurve(ui_properties.plainTextEdit->toPlainText().trimmed());
}

void MainWindow::moveEvent(QMoveEvent *event)
{
    QMainWindow::moveEvent(event);
    showQuickView();
}

void MainWindow::resizeEvent(QResizeEvent *event)
{
    QMainWindow::resizeEvent(event);
    showQuickView();
}

void MainWindow::initQml()
{
    quickView.setFlags(Qt::FramelessWindowHint);
    quickView.rootContext()->setContextProperty(QLatin1String("editor"), m_splineEditor);
    quickView.setSource(QUrl("qrc:/preview.qml"));
    quickView.show();
}

void MainWindow::closeEvent(QCloseEvent *)
{
    quickView.close();
}

void MainWindow::importData(int result)
{
    if (!result)
        return;
    double ii = ui_import.inInfluenceEdit->text().toDouble();
    double is = ui_import.inSlopeEdit->text().toDouble();
    double oi = ui_import.outInfluenceEdit->text().toDouble();
    double os = ui_import.outSlopeEdit->text().toDouble();
    ii = qBound<double>(0., ii, 100.) / 100.;
    oi = qBound<double>(0., oi, 100.) / 100.;
    QString generatedString = QString("[%1,%2,%3,%4,1,1]").arg(ii, 0, 'f', 3)
        .arg(ii*is,0,'f',3).arg(1-oi, 0, 'f', 3).arg(1-(oi*os), 0, 'f', 3);
    ui_properties.plainTextEdit->setPlainText(generatedString);
}

#include "moc_mainwindow.cpp"