QColor ImageUtilities::computeAverageColor(const QImage& image)
{
    long int rtotal = 0, gtotal = 0, btotal = 0;
    float total = 0.0f;
    // always sample 100x100 pixels
    int samplePoints = 100;
    int stepX = std::max(image.width() / samplePoints, 1);
    int stepY = std::max(image.height() / samplePoints, 1);

    for (int y = 0; y < image.height(); y += stepY) {
        for (int x = 0; x < image.width(); x += stepX) {
            QColor color = QColor::fromRgba(image.pixel(x, y));

            float saturation = (qMax (color.red(), qMax (color.green(), color.blue())) -
                                qMin (color.red(), qMin (color.green(), color.blue()))) / 255.0f;
            float relevance = .1 + .9 * (color.alpha() / 255.0f) * saturation;

            rtotal += (unsigned char) (color.red() * relevance);
            gtotal += (unsigned char) (color.green() * relevance);
            btotal += (unsigned char) (color.blue() * relevance);

            total += relevance * 255;
        }
    }

    QColor hsv = QColor::fromRgbF(rtotal / total, gtotal / total, btotal / total).toHsv();

    /* Background color is the base color with 0.90f HSV value */
    hsv.setHsvF(hsv.hueF(),
                (hsv.saturationF() > .15f) ? 0.65f : hsv.saturationF(),
                0.90f);
    return hsv;
}
Example #2
0
void NQColorWheel::drawPicker(const QColor &color)
{
    QPainter painter(&pixmapWheel_);
    painter.setRenderHint(QPainter::Antialiasing);
    QPen pen;

    // region of the widget
    int w = qMin(width(), height());
    // radius of outer circle
    qreal r = w/2-margin_;
    // radius of inner circle
    qreal ir = r-wheelWidth_;
    // left corner of square
    qreal m = w/2.0-ir/qSqrt(2);
    painter.translate(m-5, m-5);
    qreal SquareWidth = 2*ir/qSqrt(2);
    qreal S = (color.saturationF()-minimumS_)/(1.0-minimumS_)*SquareWidth;
    qreal V = color.valueF()*SquareWidth;

    if (color.saturation() > 30 || color.value() < 50){
        //pen.setColor(Qt::white);
    }

    pen.setWidth(2);
    painter.setPen(pen);
    painter.drawEllipse(S, V, 8, 8);
}
Example #3
0
QVariantMap Core::colorToHsv(const QColor &color) {
    QVariantMap map;
    map["h"] = color.hueF();
    map["s"] = color.saturationF();
    map["v"] = color.valueF();
    return map;
}
Example #4
0
void HueSlider::setColor(const QColor& color)
{
    p->saturation = color.saturationF();
    p->value = color.valueF();
    p->updateGradient();
    setColorHue(color.hueF());
}
StatesEditorWidget::StatesEditorWidget(StatesEditorView *statesEditorView, StatesEditorModel *statesEditorModel):
        QWidget(),
    m_declarativeView(new QDeclarativeView(this)),
    m_statesEditorView(statesEditorView),
    m_imageProvider(0)
{
    m_imageProvider = new Internal::StatesEditorImageProvider;
    m_imageProvider->setNodeInstanceView(statesEditorView->nodeInstanceView());
    m_declarativeView->engine()->addImageProvider(
            QLatin1String("qmldesigner_stateseditor"), m_imageProvider);

    m_declarativeView->setAcceptDrops(false);

    QVBoxLayout *layout = new QVBoxLayout(this);
    layout->setMargin(0);
    layout->setSpacing(0);
    layout->addWidget(m_declarativeView.data());

    m_declarativeView->setResizeMode(QDeclarativeView::SizeRootObjectToView);

    m_declarativeView->rootContext()->setContextProperty(QLatin1String("statesEditorModel"), statesEditorModel);
    QColor highlightColor = palette().highlight().color();
    if (0.5*highlightColor.saturationF()+0.75-highlightColor.valueF() < 0)
        highlightColor.setHsvF(highlightColor.hsvHueF(),0.1 + highlightColor.saturationF()*2.0, highlightColor.valueF());
    m_declarativeView->rootContext()->setContextProperty(QLatin1String("highlightColor"), highlightColor);

    // Work around ASSERT in the internal QGraphicsScene that happens when
    // the scene is created + items set dirty in one event loop run (BAUHAUS-459)
    //QApplication::processEvents();

    m_declarativeView->setSource(QUrl("qrc:/stateseditor/stateslist.qml"));

    if (!m_declarativeView->rootObject())
        throw InvalidQmlSourceException(__LINE__, __FUNCTION__, __FILE__);

    m_declarativeView->setFocusPolicy(Qt::ClickFocus);
    QApplication::sendEvent(m_declarativeView->scene(), new QEvent(QEvent::WindowActivate));

    connect(m_declarativeView->rootObject(), SIGNAL(currentStateInternalIdChanged()), statesEditorView, SLOT(synchonizeCurrentStateFromWidget()));
    connect(m_declarativeView->rootObject(), SIGNAL(createNewState()), statesEditorView, SLOT(createNewState()));
    connect(m_declarativeView->rootObject(), SIGNAL(deleteState(int)), statesEditorView, SLOT(removeState(int)));

    setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred));

    setWindowTitle(tr("States", "Title of Editor widget"));
}
void Color2DSlider::setColor(const QColor& c)
{
    p->hue = c.hsvHueF();
    p->sat = c.saturationF();
    p->val = c.valueF();
    p->renderSquare(size());
    update();
    emit colorChanged(color());
}
void QtGradientStopsControllerPrivate::slotChangeAlpha(int color)
{
    QColor c = m_ui->alphaColorLine->color();
    if (m_ui->hsvRadioButton->isChecked())
        c.setHsvF(c.hueF(), c.saturationF(), c.valueF(), (qreal)color / 255);
    else
        c.setAlpha(color);
    slotChangeAlpha(c);
}
void QtGradientStopsControllerPrivate::slotChangeHue(int color)
{
    QColor c = m_ui->hueColorLine->color();
    if (m_ui->hsvRadioButton->isChecked())
        c.setHsvF((qreal)color / 360.0, c.saturationF(), c.valueF(), c.alphaF());
    else
        c.setRed(color);
    slotChangeHue(c);
}
Example #9
0
StatesEditorWidget::StatesEditorWidget(StatesEditorView *statesEditorView, StatesEditorModel *statesEditorModel)
    : QWidget(),
      m_quickView(new QQuickView()),
      m_statesEditorView(statesEditorView),
      m_imageProvider(0),
      m_qmlSourceUpdateShortcut(0)
{
    m_imageProvider = new Internal::StatesEditorImageProvider;
    m_imageProvider->setNodeInstanceView(statesEditorView->nodeInstanceView());

    m_quickView->engine()->addImageProvider(QLatin1String("qmldesigner_stateseditor"), m_imageProvider);
    m_quickView->engine()->addImportPath(statesEditorResourcesPath());

    //m_quickView->setAcceptDrops(false);

    m_qmlSourceUpdateShortcut = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_F4), this);
    connect(m_qmlSourceUpdateShortcut, SIGNAL(activated()), this, SLOT(reloadQmlSource()));

    QVBoxLayout *layout = new QVBoxLayout(this);
    setMinimumHeight(160);
    layout->setMargin(0);
    layout->setSpacing(0);
    QWidget *container = createWindowContainer(m_quickView.data());
    layout->addWidget(container);

    m_quickView->setResizeMode(QQuickView::SizeRootObjectToView);

    m_quickView->rootContext()->setContextProperty(QLatin1String("statesEditorModel"), statesEditorModel);
    QColor highlightColor = palette().highlight().color();
    if (0.5*highlightColor.saturationF()+0.75-highlightColor.valueF() < 0)
        highlightColor.setHsvF(highlightColor.hsvHueF(),0.1 + highlightColor.saturationF()*2.0, highlightColor.valueF());
    m_quickView->rootContext()->setContextProperty(QLatin1String("highlightColor"), highlightColor);

    m_quickView->rootContext()->setContextProperty("canAddNewStates", true);

    setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred));

    setWindowTitle(tr("States", "Title of Editor widget"));

    // init the first load of the QML UI elements
    reloadQmlSource();
}
Example #10
0
void ColorPickerItem::setColor(const QColor & color)
{
    m_hue = color.hueF();
    m_sat = color.saturationF();
    m_val = color.valueF();
    if (m_hue < 0.0)
        m_hue = 0.0;
    regenHueSatPixmap();
    regenValPixmap();
    update();
}
Example #11
0
void drawSelectionBackground(QPainter *painter, const QStyleOption &option)
{
    QWidget colorReference;

    painter->save();
    QLinearGradient gradient;
    QColor highlightColor = colorReference.palette().highlight().color();
    if (0.5*highlightColor.saturationF()+0.75-highlightColor.valueF() < 0)
        highlightColor.setHsvF(highlightColor.hsvHueF(),0.1 + highlightColor.saturationF()*2.0, highlightColor.valueF());
    gradient.setColorAt(0, highlightColor.lighter(130));
    gradient.setColorAt(1, highlightColor.darker(130));
    gradient.setStart(option.rect.topLeft());
    gradient.setFinalStop(option.rect.bottomLeft());
    painter->fillRect(option.rect, gradient);
    painter->setPen(highlightColor.lighter());
    painter->drawLine(option.rect.topLeft(),option.rect.topRight());
    painter->setPen(highlightColor.darker());
    painter->drawLine(option.rect.bottomLeft(),option.rect.bottomRight());
    painter->restore();
}
Example #12
0
QColor getContrastedColor(const QColor& color)
{
    QColor frontColor = Qt::white;
    qreal s = color.saturationF();
    if(s < 0.4)
    {
        qreal l = color.lightnessF();
        if(l >= 0.5)
            frontColor = Qt::black;
    }
    return frontColor;
}
void Color_Wheel::setColor(QColor c)
{
    qreal oldh = huem;
    huem = c.hueF();
    if ( huem < 0 )
        huem = 0;
    sat = c.saturationF();
    val = c.valueF();
    if ( !qFuzzyCompare(oldh+1,huem+1) )
        render_rectangle();
    update();
    emit colorChanged(c);
}
void KnotRendererBatch::themeChangedHandler()
{
    /*
     * We exlude colors that are too dark (but light colors are probably OK)
     * lighter() multiplies a factor to the value, so it's not good enough to deal with potential pure black
     * Force the value to be at least 0.2 seems to make more sense
     */
    
    QColor color = Plasma::Theme::defaultTheme()->color(Plasma::Theme::ViewBackgroundColor);
    if (color.valueF() < 0.2)
        color.setHsvF(color.hueF(), color.saturationF(), 0.2);
    
    emit colorRequest(color);
    geometryChangedHandler();
}
void QtGradientStopsControllerPrivate::slotChangeAlpha(const QColor &color)
{
    QtGradientStop *stop = m_model->currentStop();
    if (!stop)
        return;
    m_model->changeStop(stop, color);
    QList<QtGradientStop *> stops = m_model->selectedStops();
    QListIterator<QtGradientStop *> itStop(stops);
    while (itStop.hasNext()) {
        QtGradientStop *s = itStop.next();
        if (s != stop) {
            QColor c = s->color();
            if (m_ui->hsvRadioButton->isChecked()) {
                c.setHsvF(c.hueF(), c.saturationF(), c.valueF(), color.alphaF());
                int hue = c.hue();
                if (hue == 360 || hue == -1)
                    c.setHsvF(0.0, c.saturationF(), c.valueF(), c.alphaF());
            } else {
                c.setRgbF(c.redF(), c.greenF(), c.blueF(), color.alphaF());
            }
            m_model->changeStop(s, c);
        }
    }
}
Example #16
0
void
Scene_c3t3_item::compute_color_map(const QColor& c)
{
  typedef Indices::size_type size_type;

  size_type nb_domains = indices_.size();
  size_type i = 0;
  for (Indices::iterator it = indices_.begin(), end = indices_.end();
    it != end; ++it, ++i)
  {
    double hue = c.hueF() + 1. / nb_domains * i;
    if (hue > 1) { hue -= 1.; }
    d->colors[*it] = QColor::fromHsvF(hue, c.saturationF(), c.valueF());
  }
}
Example #17
0
QString ColorRangeBase::toString(const QColor &clr, ColorRangeBase::ColorModel clrModel)
{
    QString color;
    switch(clrModel){
    case ColorRangeBase::cmRGBA:
        color += QString("RGBA(%1 %2 %3 %4)").arg(clr.redF(),0,'f',2).arg(clr.greenF(),0,'f',2).arg(clr.blueF(),0,'f',2).arg(clr.alphaF(),0,'f',2);
        break;
    case ColorRangeBase::cmHSLA:
        color += QString("HSLA(%1 %2 %3 %4)").arg(clr.hueF(),0,'f',2).arg(clr.saturationF(),0,'f',2).arg(clr.lightnessF(),0,'f',2).arg(clr.alphaF(),0,'f',2);
        break;
    case ColorRangeBase::cmCYMKA:
        color += QString("CMYKA(%1 %2 %3 %4 %5)").arg(clr.cyanF(),0,'f',2).arg(clr.magentaF(),0,'f',2).arg(clr.yellowF(),0,'f',2).arg(clr.blackF(),0,'f',2).arg(clr.alphaF(),0,'f',2);
        break;
    case ColorRangeBase::cmGREYSCALE:
        color += QString("GREY(%1)").arg(clr.redF(),0,'f',2);
        break;
    default:
        break;
    }
    return color;
}
Example #18
0
void ColorBox::setColor(const QColor& color)
{
	_updating = true;
	_ui->red->setFirstColor(QColor(0, color.green(), color.blue()));
	_ui->red->setLastColor(QColor(255, color.green(), color.blue()));
	_ui->red->setValue(color.red());
	_ui->redbox->setValue(color.red());

	_ui->green->setFirstColor(QColor(color.red(), 0, color.blue()));
	_ui->green->setLastColor(QColor(color.red(), 255, color.blue()));
	_ui->green->setValue(color.green());
	_ui->greenbox->setValue(color.green());

	_ui->blue->setFirstColor(QColor(color.red(), color.green(), 0));
	_ui->blue->setLastColor(QColor(color.red(), color.green(), 255));
	_ui->blue->setValue(color.blue());
	_ui->bluebox->setValue(color.blue());


	_ui->hue->setColorSaturation(color.saturationF());
	_ui->hue->setColorValue(color.valueF());
	_ui->hue->setValue(color.hue());
	_ui->huebox->setValue(color.hue());

	_ui->saturation->setFirstColor(QColor::fromHsv(color.hue(), 0, color.value()));
	_ui->saturation->setLastColor(QColor::fromHsv(color.hue(), 255, color.value()));
	_ui->saturation->setValue(color.saturation());
	_ui->saturationbox->setValue(color.saturation());

	_ui->value->setFirstColor(QColor::fromHsv(color.hue(), color.saturation(), 0));
	_ui->value->setLastColor(QColor::fromHsv(color.hue(), color.saturation(), 255));
	_ui->value->setValue(color.value());
	_ui->valuebox->setValue(color.value());

	_ui->colorwheel->setColor(color);
	_updating = false;
}
Example #19
0
void ColorWheel::drawPicker(const QColor &color)
{
    QPainter painter(&m_wheelPixmap);
    painter.setRenderHint(QPainter::Antialiasing);

    QPoint squareTopLeft = m_squareRegion.boundingRect().topLeft();

    painter.translate(squareTopLeft.x(), squareTopLeft.y());

    QSize squareSize = m_squareRegion.boundingRect().size();

    qreal S = color.saturationF() * squareSize.width();
    qreal V = squareSize.height() - (color.valueF() * squareSize.height());

    QPen pen;
    pen.setWidth(3);
    if (color.saturation() > 30 || color.value() < 50)
    {
        pen.setColor(Qt::white);
    }
    painter.setPen(pen);

    painter.drawEllipse(S - 5, V - 5, 10, 10);
}
void KisColorSelectorSimple::setColor(const QColor &c)
{
    switch (m_parameter) {
    case KisColorSelector::SL:
        m_lastClickPos.setX(c.hslSaturationF());
        m_lastClickPos.setY(1.-c.lightnessF());
        emit paramChanged(-1, -1, -1, c.hslSaturationF(), c.lightnessF());
        break;
    case KisColorSelector::LH:
        m_lastClickPos.setX(qBound<qreal>(0., c.hueF(), 1.));
        m_lastClickPos.setY(1.-c.lightnessF());
        emit paramChanged(c.hueF(), -1, -1, -1, c.lightnessF());
        break;
    case KisColorSelector::SV:
        m_lastClickPos.setX(c.saturationF());
        m_lastClickPos.setY(1-c.valueF());
        emit paramChanged(-1, c.saturationF(), c.valueF(), -1, -1);
        break;
    case KisColorSelector::SV2: {
        qreal xRel = c.hsvSaturationF();
        qreal yRel = 0.5;
        
        if(xRel != 1.0)
            yRel = 1.0 - qBound<qreal>(0.0, (c.valueF() - xRel) / (1.0 - xRel), 1.0);
        
        m_lastClickPos.setX(xRel);
        m_lastClickPos.setY(yRel);
        emit paramChanged(-1, -1, -1, xRel, yRel);
        break;
    }
    case KisColorSelector::VH:
        m_lastClickPos.setX(qBound<qreal>(0., c.hueF(), 1.));
        m_lastClickPos.setY(c.valueF());
        emit paramChanged(c.hueF(), -1, c.valueF(), -1, -1);
        break;
    case KisColorSelector::hsvSH:
        m_lastClickPos.setX(qBound<qreal>(0., c.hueF(), 1.));
        m_lastClickPos.setY(1-c.saturationF());
        emit paramChanged(c.hueF(), c.saturationF(), -1, -1, -1);
        break;
    case KisColorSelector::hslSH:
        m_lastClickPos.setX(qBound<qreal>(0., c.hueF(), 1.));
        m_lastClickPos.setY(1-c.hslSaturationF());
        emit paramChanged(c.hueF(), -1, -1, c.hslSaturationF(), -1);
        break;
    case KisColorSelector::L:
        m_lastClickPos.setX(c.lightnessF());
        emit paramChanged(-1, -1, -1, -1, c.lightnessF());
        break;
    case KisColorSelector::V:
        m_lastClickPos.setX(c.valueF());
        emit paramChanged(-1, -1, c.valueF(), -1, -1);
        break;
    case KisColorSelector::hsvS:
        m_lastClickPos.setX(c.saturationF());
        emit paramChanged(-1, c.saturationF(), -1, -1, -1);
        break;
    case KisColorSelector::hslS:
        m_lastClickPos.setX(c.hslSaturationF());
        emit paramChanged(-1, -1, -1, c.hslSaturationF(), -1);
        break;
    case KisColorSelector::H:
        m_lastClickPos.setX(qBound<qreal>(0., c.hueF(), 1.));
        emit paramChanged(c.hueF(), -1, -1, -1, -1);
        break;
    default:
        Q_ASSERT(false);
        break;
    }
    emit update();
}
QString colorToString(const QColor &color, ColorFormat format)
{
    QString ret;

    QString prefix;
    QString colorComponents;

    if (format == ColorFormat::QCssRgbUCharFormat) {
        prefix = QLatin1String("rgb(");
        colorComponents = QString::number(color.red()) + QLatin1String(", ")
                + QString::number(color.green()) + QLatin1String(", ")
                + QString::number(color.blue());

        qreal alpha = color.alphaF();
        if (alpha < 1.0) {
            prefix.insert(3, QLatin1Char('a'));
            colorComponents += QLatin1String(", ") + colorDoubleToQString(color.alphaF());
        }
    }
    if (format == ColorFormat::QCssRgbPercentFormat) {
        int rP = qRound(color.redF() * 100);
        int gP = qRound(color.greenF() * 100);
        int bP = qRound(color.blueF() * 100);

        prefix = QLatin1String("rgb(");
        colorComponents = QString::number(rP) + QChar::fromLatin1('%') + QLatin1String(", ")
                + QString::number(gP) + QChar::fromLatin1('%') + QLatin1String(", ")
                + QString::number(bP) + QChar::fromLatin1('%');

        qreal alpha = color.alphaF();

        if (alpha < 1.0) {
            prefix.insert(3, QLatin1Char('a'));
            colorComponents += QLatin1String(", ") + colorDoubleToQString(alpha);
        }
    }
    else if (format == ColorFormat::QssHsvFormat) {
        prefix = QLatin1String("hsv(");
        colorComponents = QString::number(color.hsvHue()) + QLatin1String(", ")
                + QString::number(color.hsvSaturation()) + QLatin1String(", ")
                + QString::number(color.value());

        int aP = qRound(color.alphaF() * 100);

        if (aP < 100) {
            prefix.insert(3, QLatin1Char('a'));
            colorComponents += QLatin1String(", ") + colorDoubleToQString(aP);
        }
    }
    else if (format == ColorFormat::CssHslFormat) {
        prefix = QLatin1String("hsl(");

        int sP = qRound(color.hslSaturationF() * 100);
        int lP = qRound(color.lightnessF() * 100);

        colorComponents = QString::number(color.hslHue()) + QLatin1String(", ")
                + QString::number(sP) + QChar::fromLatin1('%') + QLatin1String(", ")
                + QString::number(lP) + QChar::fromLatin1('%');

        qreal alpha = color.alphaF();
        if (alpha < 1.0) {
            prefix.insert(3, QLatin1Char('a'));
            colorComponents += QLatin1String(", ") + colorDoubleToQString(color.alphaF());
        }
    }
    else if (format == ColorFormat::QmlRgbaFormat) {
        prefix = QLatin1String("Qt.rgba(");
        colorComponents = colorDoubleToQString(color.redF()) + QLatin1String(", ")
                + colorDoubleToQString(color.greenF()) + QLatin1String(", ")
                + colorDoubleToQString(color.blueF()) + QLatin1String(", ")
                + colorDoubleToQString(color.alphaF());
    }
    else if (format == ColorFormat::QmlHslaFormat) {
        prefix = QLatin1String("Qt.hsla(");
        colorComponents = colorDoubleToQString(color.hueF()) + QLatin1String(", ")
                + colorDoubleToQString(color.saturationF()) + QLatin1String(", ")
                + colorDoubleToQString(color.lightnessF()) + QLatin1String(", ")
                + colorDoubleToQString(color.alphaF());
    }
    else if (format == ColorFormat::GlslFormat) {
        prefix = QLatin1String("vec");

        colorComponents = colorDoubleToQString(color.redF()) + QLatin1String(", ")
                + colorDoubleToQString(color.greenF()) + QLatin1String(", ")
                + colorDoubleToQString(color.blueF());

        qreal alpha = color.alphaF();
        if (alpha < 1.0) {
            prefix.append(QLatin1Char('4'));
            colorComponents += QLatin1String(", ") + colorDoubleToQString(color.alphaF());
        } else {
            prefix.append(QLatin1Char('3'));
        }

        prefix.append(QLatin1Char('('));
    }
    else if (format == ColorFormat::HexFormat) {
        prefix = QLatin1String("#");

        int alpha = color.alpha();

        if (alpha < 255)
            colorComponents.sprintf("%02x%02x%02x%02x", alpha, color.red(), color.green(), color.blue());
        else
            colorComponents.sprintf("%02x%02x%02x", color.red(), color.green(), color.blue());

        colorComponents = colorComponents.toUpper();
    }

    Q_ASSERT(!prefix.isNull());
    Q_ASSERT(!colorComponents.isNull());

    ret = prefix + colorComponents;

    if (format != ColorFormat::HexFormat)
        ret += QChar::fromLatin1(')');

    Q_ASSERT_X(!ret.isNull(), Q_FUNC_INFO, "The string version of the color is invalid");

    return ret;
}
double ColorFilterStrategySaturation::pixelToZeroToOne (const QColor &pixel,
                                                        QRgb /* rgbBackground */) const
{
  return pixel.saturationF();
}
Example #23
0
ItemLibraryWidget::ItemLibraryWidget(QWidget *parent) :
    QFrame(parent),
    m_iconProvider(m_resIconSize),
    m_itemIconSize(24, 24),
    m_resIconSize(24, 24),
    m_itemsView(new QDeclarativeView(this)),
    m_resourcesView(new Internal::ItemLibraryTreeView(this)),
    m_filterFlag(QtBasic)
{
    setWindowTitle(tr("Library", "Title of library view"));

    /* create Items view and its model */
    m_itemsView->setAttribute(Qt::WA_OpaquePaintEvent);
    m_itemsView->setAttribute(Qt::WA_NoSystemBackground);
    m_itemsView->setAcceptDrops(false);
    m_itemsView->setFocusPolicy(Qt::ClickFocus);
    m_itemsView->setResizeMode(QDeclarativeView::SizeRootObjectToView);
    m_itemLibraryModel = new Internal::ItemLibraryModel(QDeclarativeEnginePrivate::getScriptEngine(m_itemsView->engine()), this);
    m_itemLibraryModel->setItemIconSize(m_itemIconSize);

    QDeclarativeContext *rootContext = m_itemsView->rootContext();
    rootContext->setContextProperty(QLatin1String("itemLibraryModel"), m_itemLibraryModel.data());
    rootContext->setContextProperty(QLatin1String("itemLibraryIconWidth"), m_itemIconSize.width());
    rootContext->setContextProperty(QLatin1String("itemLibraryIconHeight"), m_itemIconSize.height());

    QColor highlightColor = palette().highlight().color();
    if (0.5*highlightColor.saturationF()+0.75-highlightColor.valueF() < 0)
        highlightColor.setHsvF(highlightColor.hsvHueF(),0.1 + highlightColor.saturationF()*2.0, highlightColor.valueF());
    m_itemsView->rootContext()->setContextProperty(QLatin1String("highlightColor"), highlightColor);

    // loading the qml has to come after all needed context properties are set
    m_itemsView->setSource(QUrl("qrc:/ItemLibrary/qml/ItemsView.qml"));

    QDeclarativeItem *rootItem = qobject_cast<QDeclarativeItem*>(m_itemsView->rootObject());
    connect(rootItem, SIGNAL(itemSelected(int)), this, SLOT(showItemInfo(int)));
    connect(rootItem, SIGNAL(itemDragged(int)), this, SLOT(startDragAndDrop(int)));
    connect(this, SIGNAL(scrollItemsView(QVariant)), rootItem, SLOT(scrollView(QVariant)));
    connect(this, SIGNAL(resetItemsView()), rootItem, SLOT(resetView()));

    /* create Resources view and its model */
    m_resourcesFileSystemModel = new QFileSystemModel(this);
    m_resourcesFileSystemModel->setIconProvider(&m_iconProvider);
    m_resourcesView->setModel(m_resourcesFileSystemModel.data());
    m_resourcesView->setIconSize(m_resIconSize);

    /* create image provider for loading item icons */
    m_itemsView->engine()->addImageProvider(QLatin1String("qmldesigner_itemlibrary"), new Internal::ItemLibraryImageProvider);

    /* other widgets */
    QTabBar *tabBar = new QTabBar(this);
    tabBar->addTab(tr("Items", "Title of library items view"));
    tabBar->addTab(tr("Resources", "Title of library resources view"));
    tabBar->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

    m_lineEdit = new Utils::FilterLineEdit(this);
    m_lineEdit->setObjectName(QLatin1String("itemLibrarySearchInput"));
    m_lineEdit->setPlaceholderText(tr("<Filter>", "Library search input hint text"));
    m_lineEdit->setDragEnabled(false);
    m_lineEdit->setMinimumWidth(75);
    m_lineEdit->setTextMargins(0, 0, 20, 0);
    QWidget *lineEditFrame = new QWidget(this);
    lineEditFrame->setObjectName(QLatin1String("itemLibrarySearchInputFrame"));
    QGridLayout *lineEditLayout = new QGridLayout(lineEditFrame);
    lineEditLayout->setMargin(2);
    lineEditLayout->setSpacing(0);
    lineEditLayout->addItem(new QSpacerItem(5, 3, QSizePolicy::Fixed, QSizePolicy::Fixed), 0, 0, 1, 3);
    lineEditLayout->addItem(new QSpacerItem(5, 5, QSizePolicy::Fixed, QSizePolicy::Fixed), 1, 0);
    lineEditLayout->addWidget(m_lineEdit.data(), 1, 1, 1, 1);
    lineEditLayout->addItem(new QSpacerItem(5, 5, QSizePolicy::Fixed, QSizePolicy::Fixed), 1, 2);
    connect(m_lineEdit.data(), SIGNAL(filterChanged(QString)), this, SLOT(setSearchFilter(QString)));

    m_stackedWidget = new QStackedWidget(this);
    m_stackedWidget->addWidget(m_itemsView.data());
    m_stackedWidget->addWidget(m_resourcesView.data());
    connect(tabBar, SIGNAL(currentChanged(int)),
            m_stackedWidget.data(), SLOT(setCurrentIndex(int)));
    connect(tabBar, SIGNAL(currentChanged(int)),
            this, SLOT(updateSearch()));

    QWidget *spacer = new QWidget(this);
    spacer->setObjectName(QLatin1String("itemLibrarySearchInputSpacer"));
    spacer->setFixedHeight(4);

    QGridLayout *layout = new QGridLayout(this);
    layout->setContentsMargins(0, 0, 0, 0);
    layout->setSpacing(0);
    layout->addWidget(tabBar, 0, 0, 1, 1);
    layout->addWidget(spacer, 1, 0);
    layout->addWidget(lineEditFrame, 2, 0, 1, 1);
    layout->addWidget(m_stackedWidget.data(), 3, 0, 1, 1);

    setResourcePath(QDir::currentPath());
    setSearchFilter(QString());

    /* style sheets */
    setStyleSheet(QLatin1String(Utils::FileReader::fetchQrc(":/qmldesigner/stylesheet.css")));
    m_resourcesView->setStyleSheet(
            QLatin1String(Utils::FileReader::fetchQrc(":/qmldesigner/scrollbar.css")));
}
Example #24
0
void tst_QColor::setHsv()
{
    QColor color;

    for (int A = 0; A <= USHRT_MAX; ++A) {
        {
            // 0-255
            int a = A >> 8;
            color.setHsv(0, 0, 0, a);
            QCOMPARE(color.alpha(), a);

            int h, s, v, a2;
            color.getHsv(&h, &s, &v, &a2);
            QCOMPARE(a2, a);
        }

        {
            // 0.0-1.0
            qreal a = A / qreal(USHRT_MAX);
            color.setHsvF(0.0, 0.0, 0.0, a);
            QCOMPARE(color.alphaF(), a);

            qreal h, s, v, a2;
            color.getHsvF(&h, &s, &v, &a2);
            QCOMPARE(a2, a);
        }
    }

    for (int H = 0; H < 36000; ++H) {
        {
            // 0-255
            int h = H / 100;

            color.setHsv(h, 0, 0, 0);
            QCOMPARE(color.hue(), h);

            int h2, s, v, a;
            color.getHsv(&h2, &s, &v, &a);
            QCOMPARE(h2, h);
        }

        {
            // 0.0-1.0
            qreal h = H / 36000.0;
            color.setHsvF(h, 0.0, 0.0, 0.0);
            QCOMPARE(color.hueF(), h);

            qreal h2, s, v, a;
            color.getHsvF(&h2, &s, &v, &a);
            QCOMPARE(h2, h);
        }
    }

    for (int S = 0; S <= USHRT_MAX; ++S) {
        {
            // 0-255
            int s = S >> 8;
            color.setHsv(0, s, 0, 0);
            QCOMPARE(color.saturation(), s);

            int h, s2, v, a;
            color.getHsv(&h, &s2, &v, &a);
            QCOMPARE(s2, s);
        }

        {
            // 0.0-1.0
            qreal s = S / qreal(USHRT_MAX);
            color.setHsvF(0.0, s, 0.0, 0.0);
            QCOMPARE(color.saturationF(), s);

            qreal h, s2, v, a;
            color.getHsvF(&h, &s2, &v, &a);
            QCOMPARE(s2, s);
        }
    }

    for (int V = 0; V <= USHRT_MAX; ++V) {
        {
            // 0-255
            int v = V >> 8;
            color.setHsv(0, 0, v, 0);
            QCOMPARE(color.value(),  v);

            int h, s, v2, a;
            color.getHsv(&h, &s, &v2, &a);
            QCOMPARE(v2, v);
        }

        {
            // 0.0-1.0
            qreal v = V / qreal(USHRT_MAX);
            color.setHsvF(0.0, 0.0, v, 0.0);
            QCOMPARE(color.valueF(), v);

            qreal h, s, v2, a;
            color.getHsvF(&h, &s, &v2, &a);
            QCOMPARE(v2, v);
        }
    }
}
Example #25
0
/***********************************************************************
 * color map helper utilities
 **********************************************************************/
static QColor pastelize(const QColor &c)
{
    //Pastels have high value and low to intermediate saturation:
    //http://en.wikipedia.org/wiki/Pastel_%28color%29
    return QColor::fromHsv(c.hue(), int(c.saturationF()*128), int(c.valueF()*64)+191);
}
QImage GradientLoader::drawGradient(const GradientList& data)
{
    if (data.isEmpty())
    {
        return QImage();
    }

    QPixmap pix(MAX_THUMB_SIZE, MAX_THUMB_SIZE / 2);
    pix.fill(Qt::white);

    QPainter p(&pix);
    p.setPen(QPen(Qt::transparent));
    p.setRenderHint(QPainter::Antialiasing, true);

    QLinearGradient grad(0.0, 0.0, 1.0, 0.0);
    grad.setCoordinateMode(QGradient::StretchToDeviceMode);

    foreach(const GradientData & gradient, data)
    {
        if (gradient.status != GradientData::Ok)
        {
            continue;
        }

        qreal start = gradient.startPoint + 0.01;
        qreal end   = gradient.endPoint;

        // do some basic range checks
        start = qMin(1.0, start);
        start = qMax(0.0, start);
        end   = qMin(1.0, end);
        end   = qMax(0.0, end);

        // check coloring mode
        if (gradient.coloringMode == GradientData::HSVclockwise ||
            gradient.coloringMode == GradientData::HSVcounterClockwise
           )
        {
            const int hue_range = 360;

            bool reverse        = (gradient.coloringMode == GradientData::HSVcounterClockwise);
            qreal stepping      = qAbs(end - start) / (qreal)hue_range;
            qreal pos           = reverse ? start : end;

            QColor col = QColor::fromRgbF(gradient.leftColorRed,
                                          gradient.leftColorGreen,
                                          gradient.leftColorBlue,
                                          gradient.leftColorAlpha);
            QColor hsv        = col.toHsv();
            qreal saturationF = hsv.saturationF();
            qreal valueF      = hsv.valueF();
            qreal alphaF      = hsv.alphaF();

            for (int h = 0.0; h < hue_range; ++h)
            {
                grad.setColorAt(pos, QColor::fromHsvF((qreal)h / hue_range,
                                                      saturationF,
                                                      valueF,
                                                      alphaF));

                if (reverse)
                {
                    pos += stepping;
                }
                else
                {
                    pos -= stepping;
                }
            }
        }
        else
        {
            grad.setColorAt(start, QColor::fromRgbF(gradient.leftColorRed,
                                                    gradient.leftColorGreen,
                                                    gradient.leftColorBlue,
                                                    gradient.leftColorAlpha));

            grad.setColorAt(end, QColor::fromRgbF(gradient.rightColorRed,
                                                  gradient.rightColorGreen,
                                                  gradient.rightColorBlue,
                                                  gradient.rightColorAlpha));
        }
    }

    p.fillRect(pix.rect(), QBrush(grad));
    p.end();

    return pix.toImage();
}