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#include "qtgradienteditor.h"

#include "qtgradientstopscontroller.h"

#include "ui_qtgradienteditor.h"

QT_BEGIN_NAMESPACE

class QtGradientEditorPrivate

{

    QtGradientEditor *q_ptr;

    Q_DECLARE_PUBLIC(QtGradientEditor)

public:

    QtGradientEditorPrivate() : m_gradient(QLinearGradient()) {}

    void slotGradientStopsChanged(const QGradientStops &stops);

    void slotTypeChanged(int type);

    void slotSpreadChanged(int spread);

    void slotStartLinearXChanged(double value);

    void slotStartLinearYChanged(double value);

    void slotEndLinearXChanged(double value);

    void slotEndLinearYChanged(double value);

    void slotCentralRadialXChanged(double value);

    void slotCentralRadialYChanged(double value);

    void slotFocalRadialXChanged(double value);

    void slotFocalRadialYChanged(double value);

    void slotRadiusRadialChanged(double value);

    void slotCentralConicalXChanged(double value);

    void slotCentralConicalYChanged(double value);

    void slotAngleConicalChanged(double value);

    void slotDetailsChanged(bool details);

    void startLinearChanged(const QPointF &point);

    void endLinearChanged(const QPointF &point);

    void centralRadialChanged(const QPointF &point);

    void focalRadialChanged(const QPointF &point);

    void radiusRadialChanged(qreal radius);

    void centralConicalChanged(const QPointF &point);

    void angleConicalChanged(qreal angle);

    void setStartLinear(const QPointF &point);

    void setEndLinear(const QPointF &point);

    void setCentralRadial(const QPointF &point);

    void setFocalRadial(const QPointF &point);

    void setRadiusRadial(qreal radius);

    void setCentralConical(const QPointF &point);

    void setAngleConical(qreal angle);

    void setType(QGradient::Type type);

    void showDetails(bool details);

    void setSpinBox(QDoubleSpinBox *spinBox, const char *slot, double max = 1.0, double step = 0.01, int decimals = 3);

    void reset();

    void setLayout(bool details);

    void layoutDetails(bool details);

    bool row4Visible() const;

    bool row5Visible() const;

    int extensionWidthHint() const;

    void setCombos(bool combos);

    QGradient gradient() const;

    void updateGradient(bool emitSignal);

    Ui::QtGradientEditor m_ui;

    QtGradientStopsController *m_gradientStopsController;

    QDoubleSpinBox *startLinearXSpinBox;

    QDoubleSpinBox *startLinearYSpinBox;

    QDoubleSpinBox *endLinearXSpinBox;

    QDoubleSpinBox *endLinearYSpinBox;

    QDoubleSpinBox *centralRadialXSpinBox;

    QDoubleSpinBox *centralRadialYSpinBox;

    QDoubleSpinBox *focalRadialXSpinBox;

    QDoubleSpinBox *focalRadialYSpinBox;

    QDoubleSpinBox *radiusRadialSpinBox;

    QDoubleSpinBox *centralConicalXSpinBox;

    QDoubleSpinBox *centralConicalYSpinBox;

    QDoubleSpinBox *angleConicalSpinBox;

    QButtonGroup *m_typeGroup;

    QButtonGroup *m_spreadGroup;

    QGradient::Type m_type;

    QGridLayout *m_gridLayout;

    QWidget *m_hiddenWidget;

    QGridLayout *m_hiddenLayout;

    bool m_details;

    bool m_detailsButtonVisible;

    bool m_backgroundCheckered;

    QGradient m_gradient;

    bool m_combos;

};

QGradient QtGradientEditorPrivate::gradient() const

{

    QGradient *gradient = 0;

    switch (m_ui.gradientWidget->gradientType()) {

        case QGradient::LinearGradient:

            gradient = new QLinearGradient(m_ui.gradientWidget->startLinear(),

                        m_ui.gradientWidget->endLinear());

            break;

        case QGradient::RadialGradient:

            gradient = new QRadialGradient(m_ui.gradientWidget->centralRadial(),

                        m_ui.gradientWidget->radiusRadial(),

                        m_ui.gradientWidget->focalRadial());

            break;

        case QGradient::ConicalGradient:

            gradient = new QConicalGradient(m_ui.gradientWidget->centralConical(),

                        m_ui.gradientWidget->angleConical());

            break;

        default:

            break;

    }

    if (!gradient)

        return QGradient();

    gradient->setStops(m_ui.gradientWidget->gradientStops());

    gradient->setSpread(m_ui.gradientWidget->gradientSpread());

    gradient->setCoordinateMode(QGradient::StretchToDeviceMode);

    QGradient gr = *gradient;

    delete gradient;

    return gr;

}

void QtGradientEditorPrivate::updateGradient(bool emitSignal)

{

    QGradient grad = gradient();

    if (m_gradient == grad)

        return;

    m_gradient = grad;

    if (emitSignal)

        emit q_ptr->gradientChanged(m_gradient);

}

void QtGradientEditorPrivate::setCombos(bool combos)

{

    if (m_combos == combos)

        return;

    m_combos = combos;

    m_ui.linearButton->setVisible(!m_combos);

    m_ui.radialButton->setVisible(!m_combos);

    m_ui.conicalButton->setVisible(!m_combos);

    m_ui.padButton->setVisible(!m_combos);

    m_ui.repeatButton->setVisible(!m_combos);

    m_ui.reflectButton->setVisible(!m_combos);

    m_ui.typeComboBox->setVisible(m_combos);

    m_ui.spreadComboBox->setVisible(m_combos);

}

void QtGradientEditorPrivate::setLayout(bool details)

{

    QHBoxLayout *hboxLayout = new QHBoxLayout();

    hboxLayout->setObjectName(QString::fromUtf8("hboxLayout"));

    hboxLayout->addWidget(m_ui.typeComboBox);

    hboxLayout->addWidget(m_ui.spreadComboBox);

    QHBoxLayout *typeLayout = new QHBoxLayout();

    typeLayout->setSpacing(0);

    typeLayout->addWidget(m_ui.linearButton);

    typeLayout->addWidget(m_ui.radialButton);

    typeLayout->addWidget(m_ui.conicalButton);

    hboxLayout->addLayout(typeLayout);

    QHBoxLayout *spreadLayout = new QHBoxLayout();

    spreadLayout->setSpacing(0);

    spreadLayout->addWidget(m_ui.padButton);

    spreadLayout->addWidget(m_ui.repeatButton);

    spreadLayout->addWidget(m_ui.reflectButton);

    hboxLayout->addLayout(spreadLayout);

    hboxLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum));

    hboxLayout->addWidget(m_ui.detailsButton);

    m_gridLayout->addLayout(hboxLayout, 0, 0, 1, 2);

    int span = 1;

    if (details)

        span = 7;

    m_gridLayout->addWidget(m_ui.frame, 1, 0, span, 2);

    int row = 2;

    if (details) {

        row = 8;

        span = 4;

    }

    m_gridLayout->addWidget(m_ui.gradientStopsWidget, row, 0, span, 2);

    QHBoxLayout *hboxLayout1 = new QHBoxLayout();

    hboxLayout1->setObjectName(QString::fromUtf8("hboxLayout1"));

    hboxLayout1->addWidget(m_ui.colorLabel);

    hboxLayout1->addWidget(m_ui.colorButton);

    hboxLayout1->addWidget(m_ui.hsvRadioButton);

    hboxLayout1->addWidget(m_ui.rgbRadioButton);

    hboxLayout1->addItem(new QSpacerItem(16, 23, QSizePolicy::Expanding, QSizePolicy::Minimum));

    int addRow = 0;

    if (details)

        addRow = 9;

    m_gridLayout->addLayout(hboxLayout1, 3 + addRow, 0, 1, 2);

    m_gridLayout->addWidget(m_ui.hLabel, 4 + addRow, 0, 1, 1);

    m_gridLayout->addWidget(m_ui.frame_2, 4 + addRow, 1, 1, 1);

    m_gridLayout->addWidget(m_ui.sLabel, 5 + addRow, 0, 1, 1);

    m_gridLayout->addWidget(m_ui.frame_5, 5 + addRow, 1, 1, 1);

    m_gridLayout->addWidget(m_ui.vLabel, 6 + addRow, 0, 1, 1);

    m_gridLayout->addWidget(m_ui.frame_3, 6 + addRow, 1, 1, 1);

    m_gridLayout->addWidget(m_ui.aLabel, 7 + addRow, 0, 1, 1);

    m_gridLayout->addWidget(m_ui.frame_4, 7 + addRow, 1, 1, 1);

    if (details) {

        layoutDetails(details);

    }

}

void QtGradientEditorPrivate::layoutDetails(bool details)

{

    QGridLayout *gridLayout = m_gridLayout;

    int col = 2;

    if (!details) {

        col = 0;

        if (!m_hiddenWidget) {

            m_hiddenWidget = new QWidget();

            m_hiddenLayout = new QGridLayout(m_hiddenWidget);

            m_hiddenLayout->setContentsMargins(0, 0, 0, 0);

            m_hiddenLayout->setSizeConstraint(QLayout::SetFixedSize);

        }

        gridLayout = m_hiddenLayout;

    }

    gridLayout->addWidget(m_ui.label1, 1, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.spinBox1, 1, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.label2, 2, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.spinBox2, 2, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.label3, 3, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.spinBox3, 3, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.label4, 4, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.spinBox4, 4, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.label5, 5, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.spinBox5, 5, col + 1, 1, 1);

    gridLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding), 6, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.line1Widget, 7, col + 0, 1, 2);

    gridLayout->addWidget(m_ui.zoomLabel, 8, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.zoomWidget, 8, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.zoomButtonsWidget, 9, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.zoomAllButton, 9, col + 1, 1, 1);

    gridLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Preferred), 10, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.line2Widget, 11, col + 0, 1, 2);

    gridLayout->addWidget(m_ui.positionLabel, 12, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.positionWidget, 12, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.hueLabel, 13, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.hueWidget, 13, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.saturationLabel, 14, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.saturationWidget, 14, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.valueLabel, 15, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.valueWidget, 15, col + 1, 1, 1);

    gridLayout->addWidget(m_ui.alphaLabel, 16, col + 0, 1, 1);

    gridLayout->addWidget(m_ui.alphaWidget, 16, col + 1, 1, 1);

    if (details) {

        if (m_hiddenLayout) {

            delete m_hiddenLayout;

            m_hiddenLayout = 0;

        }

        if (m_hiddenWidget) {

            delete m_hiddenWidget;

            m_hiddenWidget = 0;

        }

    }

}

int QtGradientEditorPrivate::extensionWidthHint() const

{

    if (m_details)

        return q_ptr->size().width() - m_ui.gradientStopsWidget->size().width();

    const int space = m_ui.spinBox1->geometry().left() - m_ui.label1->geometry().right();

    return m_hiddenLayout->minimumSize().width() + space;

}

void QtGradientEditorPrivate::slotDetailsChanged(bool details)

{

    showDetails(details);

}

bool QtGradientEditorPrivate::row4Visible() const

{

    if (m_type == QGradient::ConicalGradient)

        return false;

    return true;

}

bool QtGradientEditorPrivate::row5Visible() const

{

    if (m_type == QGradient::RadialGradient)

        return true;

    return false;

}

void QtGradientEditorPrivate::showDetails(bool details)

{

    if (m_details == details)

        return;

    bool blocked = m_ui.detailsButton->signalsBlocked();

    m_ui.detailsButton->blockSignals(true);

    m_ui.detailsButton->setChecked(details);

    m_ui.detailsButton->blockSignals(blocked);

    bool updates = q_ptr->updatesEnabled();

    q_ptr->setUpdatesEnabled(false);

    if (m_gridLayout) {

        m_gridLayout->setEnabled(false);

        delete m_gridLayout;

        m_gridLayout = 0;

    }

    if (!details) {

        layoutDetails(details);

    }

    emit q_ptr->aboutToShowDetails(details, extensionWidthHint());

    m_details = details;

    m_gridLayout = new QGridLayout(q_ptr);

    m_gridLayout->setEnabled(false);

    m_gridLayout->setObjectName(QString::fromUtf8("gridLayout"));

    m_gridLayout->setContentsMargins(0, 0, 0, 0);

    m_ui.label4->setVisible(row4Visible());

    m_ui.label5->setVisible(row5Visible());

    m_ui.spinBox4->setVisible(row4Visible());

    m_ui.spinBox5->setVisible(row5Visible());

    setLayout(details);

    m_gridLayout->setEnabled(true);

    q_ptr->setUpdatesEnabled(updates);

    q_ptr->update();

}

void QtGradientEditorPrivate::setSpinBox(QDoubleSpinBox *spinBox, const char *slot, double max, double step, int decimals)

{

    bool blocked = spinBox->signalsBlocked();

    spinBox->blockSignals(true);

    spinBox->setDecimals(decimals);

    spinBox->setMaximum(max);

    spinBox->setSingleStep(step);

    spinBox->blockSignals(blocked);

    QObject::connect(spinBox, SIGNAL(valueChanged(double)), q_ptr, slot);

}

void QtGradientEditorPrivate::reset()

{

    startLinearXSpinBox = 0;

    startLinearYSpinBox = 0;

    endLinearXSpinBox = 0;

    endLinearYSpinBox = 0;

    centralRadialXSpinBox = 0;

    centralRadialYSpinBox = 0;

    focalRadialXSpinBox = 0;

    focalRadialYSpinBox = 0;

    radiusRadialSpinBox = 0;

    centralConicalXSpinBox = 0;

    centralConicalYSpinBox = 0;

    angleConicalSpinBox = 0;

}

void QtGradientEditorPrivate::setType(QGradient::Type type)

{

    if (m_type == type)

        return;

    m_type = type;

    m_ui.spinBox1->disconnect(SIGNAL(valueChanged(double)));

    m_ui.spinBox2->disconnect(SIGNAL(valueChanged(double)));

    m_ui.spinBox3->disconnect(SIGNAL(valueChanged(double)));

    m_ui.spinBox4->disconnect(SIGNAL(valueChanged(double)));

    m_ui.spinBox5->disconnect(SIGNAL(valueChanged(double)));

    reset();

    bool ena = true;

    if (m_gridLayout) {

        ena = m_gridLayout->isEnabled();

        m_gridLayout->setEnabled(false);

    }

    bool spreadEnabled = true;

    if (type == QGradient::LinearGradient) {

        startLinearXSpinBox = m_ui.spinBox1;

        setSpinBox(startLinearXSpinBox, SLOT(slotStartLinearXChanged(double)));

        m_ui.label1->setText(QApplication::translate("QtGradientEditor", "Start X", 0, QApplication::UnicodeUTF8));

        startLinearYSpinBox = m_ui.spinBox2;

        setSpinBox(startLinearYSpinBox, SLOT(slotStartLinearYChanged(double)));

        m_ui.label2->setText(QApplication::translate("QtGradientEditor", "Start Y", 0, QApplication::UnicodeUTF8));

        endLinearXSpinBox = m_ui.spinBox3;

        setSpinBox(endLinearXSpinBox, SLOT(slotEndLinearXChanged(double)));

        m_ui.label3->setText(QApplication::translate("QtGradientEditor", "Final X", 0, QApplication::UnicodeUTF8));

        endLinearYSpinBox = m_ui.spinBox4;

        setSpinBox(endLinearYSpinBox, SLOT(slotEndLinearYChanged(double)));

        m_ui.label4->setText(QApplication::translate("QtGradientEditor", "Final Y", 0, QApplication::UnicodeUTF8));

        setStartLinear(m_ui.gradientWidget->startLinear());

        setEndLinear(m_ui.gradientWidget->endLinear());

    } else if (type == QGradient::RadialGradient) {

        centralRadialXSpinBox = m_ui.spinBox1;

        setSpinBox(centralRadialXSpinBox, SLOT(slotCentralRadialXChanged(double)));

        m_ui.label1->setText(QApplication::translate("QtGradientEditor", "Central X", 0, QApplication::UnicodeUTF8));

        centralRadialYSpinBox = m_ui.spinBox2;

        setSpinBox(centralRadialYSpinBox, SLOT(slotCentralRadialYChanged(double)));

        m_ui.label2->setText(QApplication::translate("QtGradientEditor", "Central Y", 0, QApplication::UnicodeUTF8));

        focalRadialXSpinBox = m_ui.spinBox3;

        setSpinBox(focalRadialXSpinBox, SLOT(slotFocalRadialXChanged(double)));

        m_ui.label3->setText(QApplication::translate("QtGradientEditor", "Focal X", 0, QApplication::UnicodeUTF8));

        focalRadialYSpinBox = m_ui.spinBox4;

        setSpinBox(focalRadialYSpinBox, SLOT(slotFocalRadialYChanged(double)));

        m_ui.label4->setText(QApplication::translate("QtGradientEditor", "Focal Y", 0, QApplication::UnicodeUTF8));

        radiusRadialSpinBox = m_ui.spinBox5;

        setSpinBox(radiusRadialSpinBox, SLOT(slotRadiusRadialChanged(double)), 2.0);

        m_ui.label5->setText(QApplication::translate("QtGradientEditor", "Radius", 0, QApplication::UnicodeUTF8));

        setCentralRadial(m_ui.gradientWidget->centralRadial());

        setFocalRadial(m_ui.gradientWidget->focalRadial());

        setRadiusRadial(m_ui.gradientWidget->radiusRadial());

    } else if (type == QGradient::ConicalGradient) {

        centralConicalXSpinBox = m_ui.spinBox1;

        setSpinBox(centralConicalXSpinBox, SLOT(slotCentralConicalXChanged(double)));

        m_ui.label1->setText(QApplication::translate("QtGradientEditor", "Central X", 0, QApplication::UnicodeUTF8));

        centralConicalYSpinBox = m_ui.spinBox2;

        setSpinBox(centralConicalYSpinBox, SLOT(slotCentralConicalYChanged(double)));

        m_ui.label2->setText(QApplication::translate("QtGradientEditor", "Central Y", 0, QApplication::UnicodeUTF8));

        angleConicalSpinBox = m_ui.spinBox3;

        setSpinBox(angleConicalSpinBox, SLOT(slotAngleConicalChanged(double)), 360.0, 1.0, 1);

        m_ui.label3->setText(QApplication::translate("QtGradientEditor", "Angle", 0, QApplication::UnicodeUTF8));

        setCentralConical(m_ui.gradientWidget->centralConical());

        setAngleConical(m_ui.gradientWidget->angleConical());

        spreadEnabled = false;

    }

    m_ui.spreadComboBox->setEnabled(spreadEnabled);

    m_ui.padButton->setEnabled(spreadEnabled);

    m_ui.repeatButton->setEnabled(spreadEnabled);

    m_ui.reflectButton->setEnabled(spreadEnabled);

    m_ui.label4->setVisible(row4Visible());

    m_ui.spinBox4->setVisible(row4Visible());

    m_ui.label5->setVisible(row5Visible());

    m_ui.spinBox5->setVisible(row5Visible());

    if (m_gridLayout) {

        m_gridLayout->setEnabled(ena);

    }

}

void QtGradientEditorPrivate::slotGradientStopsChanged(const QGradientStops &stops)

{

    m_ui.gradientWidget->setGradientStops(stops);

    updateGradient(true);

}

void QtGradientEditorPrivate::slotTypeChanged(int idx)

{

    QGradient::Type type = QGradient::NoGradient;

    if (idx == 0)

        type = QGradient::LinearGradient;

    else if (idx == 1)

        type = QGradient::RadialGradient;

    else if (idx == 2)

        type = QGradient::ConicalGradient;

    setType(type);

    m_ui.typeComboBox->setCurrentIndex(idx);

    m_typeGroup->button(idx)->setChecked(true);

    m_ui.gradientWidget->setGradientType(type);

    updateGradient(true);

}

void QtGradientEditorPrivate::slotSpreadChanged(int spread)

{

    if (spread == 0) {