qplastiquestyle.cpp

奇趣公司比较新的qt/emd版本

        corner = option->palette.highlight();
        qBrushSetAlphaF(&corner, 0.5);
        innerTopLeft = qBrushDark(option->palette.highlight(), 125);
        innerBottomRight = option->palette.highlight();
        qBrushSetAlphaF(&innerBottomRight, 0.65);
    } else {
        border = option->palette.shadow();
        qBrushSetAlphaF(&border, 0.4);
        corner = option->palette.shadow();
        qBrushSetAlphaF(&corner, 0.25);
        innerTopLeft = option->palette.shadow();
        innerBottomRight = option->palette.shadow();
        if (shadow == QFrame::Sunken) {
            qBrushSetAlphaF(&innerTopLeft, 0.23);
            qBrushSetAlphaF(&innerBottomRight, 0.075);
        } else {
            qBrushSetAlphaF(&innerTopLeft, 0.075);
            qBrushSetAlphaF(&innerBottomRight, 0.23);
        }
    }

    QLine lines[4];
    QPoint points[8];

    // Opaque corner lines
    painter->setPen(QPen(border, 0));
    lines[0] = QLine(rect.left() + 2, rect.top(), rect.right() - 2, rect.top());
    lines[1] = QLine(rect.left() + 2, rect.bottom(), rect.right() - 2, rect.bottom());
    lines[2] = QLine(rect.left(), rect.top() + 2, rect.left(), rect.bottom() - 2);
    lines[3] = QLine(rect.right(), rect.top() + 2, rect.right(), rect.bottom() - 2);
    painter->drawLines(lines, 4);

    // Opaque corner dots
    points[0] = QPoint(rect.left() + 1, rect.top() + 1);
    points[1] = QPoint(rect.left() + 1, rect.bottom() - 1);
    points[2] = QPoint(rect.right() - 1, rect.top() + 1);
    points[3] = QPoint(rect.right() - 1, rect.bottom() - 1);
    painter->drawPoints(points, 4);

    // Shaded corner dots
    painter->setPen(QPen(corner, 0));
    points[0] = QPoint(rect.left(), rect.top() + 1);
    points[1] = QPoint(rect.left(), rect.bottom() - 1);
    points[2] = QPoint(rect.left() + 1, rect.top());
    points[3] = QPoint(rect.left() + 1, rect.bottom());
    points[4] = QPoint(rect.right(), rect.top() + 1);
    points[5] = QPoint(rect.right(), rect.bottom() - 1);
    points[6] = QPoint(rect.right() - 1, rect.top());
    points[7] = QPoint(rect.right() - 1, rect.bottom());
    painter->drawPoints(points, 8);

    // Shadows
    if (shadow != QFrame::Plain) {
        painter->setPen(QPen(innerTopLeft, 0));
        lines[0] = QLine(rect.left() + 2, rect.top() + 1, rect.right() - 2, rect.top() + 1);
        lines[1] = QLine(rect.left() + 1, rect.top() + 2, rect.left() + 1, rect.bottom() - 2);
        painter->drawLines(lines, 2);
        painter->setPen(QPen(innerBottomRight, 0));
        lines[0] = QLine(rect.left() + 2, rect.bottom() - 1, rect.right() - 2, rect.bottom() - 1);
        lines[1] = QLine(rect.right() - 1, rect.top() + 2, rect.right() - 1, rect.bottom() - 2);
        painter->drawLines(lines, 2);
    }

    painter->setPen(oldPen);
}

static QColor mergedColors(const QColor &colorA, const QColor &colorB, int factor = 50)
{
    const int maxFactor = 100;
    QColor tmp = colorA;
    tmp.setRed((tmp.red() * factor) / maxFactor + (colorB.red() * (maxFactor - factor)) / maxFactor);
    tmp.setGreen((tmp.green() * factor) / maxFactor + (colorB.green() * (maxFactor - factor)) / maxFactor);
    tmp.setBlue((tmp.blue() * factor) / maxFactor + (colorB.blue() * (maxFactor - factor)) / maxFactor);
    return tmp;
}

static QString uniqueName(const QString &key, const QStyleOption *option, const QSize &size)
{
    QString tmp;
    const QStyleOptionComplex *complexOption = qstyleoption_cast<const QStyleOptionComplex *>(option);
    tmp.sprintf("%s-%d-%d-%d-%lld-%dx%d", key.toLatin1().constData(), uint(option->state),
                option->direction, complexOption ? uint(complexOption->activeSubControls) : uint(0),
                option->palette.cacheKey(), size.width(), size.height());
    return tmp;
}

static void qt_plastique_draw_gradient(QPainter *painter, const QRect &rect, const QColor &gradientStart,
                                       const QColor &gradientStop)
{
    QString gradientName;
    gradientName.sprintf("%dx%d-%x-%x", rect.width(), rect.height(), gradientStart.rgba(), gradientStop.rgba());
    QPixmap cache;
    if (!UsePixmapCache || !QPixmapCache::find(gradientName, cache)) {
        cache = QPixmap(rect.size());
        cache.fill(Qt::white);
        QPainter cachePainter(&cache);
        QRect pixmapRect(0, 0, rect.width(), rect.height());
        int x = pixmapRect.center().x();
        QLinearGradient gradient(x, pixmapRect.top(), x, pixmapRect.bottom());
        gradient.setColorAt(0, gradientStart);
        gradient.setColorAt(1, gradientStop);
        cachePainter.fillRect(pixmapRect, gradient);
        cachePainter.end();
        if (UsePixmapCache)
            QPixmapCache::insert(gradientName, cache);
    }
    painter->drawPixmap(rect, cache);
}

static void qt_plastique_drawFrame(QPainter *painter, const QStyleOption *option, const QWidget *widget)
{
    QRect rect = option->rect;
    QPen oldPen = painter->pen();

    QColor borderColor = option->palette.background().color().darker(178);
    QColor gradientStartColor = option->palette.button().color().lighter(104);
    QColor gradientStopColor = option->palette.button().color().darker(105);
    QColor alphaCornerColor;
    if (widget) {
        // ### backgroundrole/foregroundrole should be part of the style option
        alphaCornerColor = mergedColors(option->palette.color(widget->backgroundRole()), borderColor);
    } else {
        alphaCornerColor = mergedColors(option->palette.background().color(), borderColor);
    }

    QLine lines[4];
    QPoint points[8];

    // outline / border
    painter->setPen(borderColor);
    lines[0] = QLine(rect.left() + 2, rect.top(), rect.right() - 2, rect.top());
    lines[1] = QLine(rect.left() + 2, rect.bottom(), rect.right() - 2, rect.bottom());
    lines[2] = QLine(rect.left(), rect.top() + 2, rect.left(), rect.bottom() - 2);
    lines[3] = QLine(rect.right(), rect.top() + 2, rect.right(), rect.bottom() - 2);
    painter->drawLines(lines, 4);

    points[0] = QPoint(rect.left() + 1, rect.top() + 1);
    points[1] = QPoint(rect.right() - 1, rect.top() + 1);
    points[2] = QPoint(rect.left() + 1, rect.bottom() - 1);
    points[3] = QPoint(rect.right() - 1, rect.bottom() - 1);
    painter->drawPoints(points, 4);

    painter->setPen(alphaCornerColor);

    points[0] = QPoint(rect.left() + 1, rect.top());
    points[1] = QPoint(rect.right() - 1, rect.top());
    points[2] = QPoint(rect.left() + 1, rect.bottom());
    points[3] = QPoint(rect.right() - 1, rect.bottom());
    points[4] = QPoint(rect.left(), rect.top() + 1);
    points[5] = QPoint(rect.right(), rect.top() + 1);
    points[6] = QPoint(rect.left(), rect.bottom() - 1);
    points[7] = QPoint(rect.right(), rect.bottom() - 1);
    painter->drawPoints(points, 8);

    // inner border
    if ((option->state & QStyle::State_Sunken) || (option->state & QStyle::State_On))
        painter->setPen(option->palette.button().color().darker(118));
    else
        painter->setPen(gradientStartColor);

    lines[0] = QLine(rect.left() + 2, rect.top() + 1, rect.right() - 2, option->rect.top() + 1);
    lines[1] = QLine(rect.left() + 1, rect.top() + 2, rect.left() + 1, option->rect.bottom() - 2);
    painter->drawLines(lines, 2);

    if ((option->state & QStyle::State_Sunken) || (option->state & QStyle::State_On))
        painter->setPen(option->palette.button().color().darker(110));
    else
        painter->setPen(gradientStopColor.darker(102));

    lines[0] = QLine(rect.left() + 2, rect.bottom() - 1, rect.right() - 2, rect.bottom() - 1);
    lines[1] = QLine(rect.right() - 1, rect.top() + 2, rect.right() - 1, rect.bottom() - 2);
    painter->drawLines(lines, 2);

    painter->setPen(oldPen);
}

static void qt_plastique_drawShadedPanel(QPainter *painter, const QStyleOption *option, bool base,
                                         const QWidget *widget)
{
    QRect rect = option->rect;
    QPen oldPen = painter->pen();

    QColor gradientStartColor = option->palette.button().color().lighter(104);
    QColor gradientStopColor = option->palette.button().color().darker(105);

    // gradient fill
    if ((option->state & QStyle::State_Enabled) || !(option->state & QStyle::State_AutoRaise)) {
        if ((option->state & QStyle::State_Sunken) || (option->state & QStyle::State_On)) {
            qt_plastique_draw_gradient(painter, rect.adjusted(1, 1, -1, -1),
                                       option->palette.button().color().darker(114),
                                       option->palette.button().color().darker(106));
        } else {
            qt_plastique_draw_gradient(painter, rect.adjusted(1, 1, -1, -1),
                                       base ? option->palette.background().color().lighter(105) : gradientStartColor,
                                       base ? option->palette.background().color().darker(102) : gradientStopColor);
        }
    }

    qt_plastique_drawFrame(painter, option, widget);

    painter->setPen(oldPen);
}

static void qt_plastique_draw_mdibutton(QPainter *painter, const QStyleOptionTitleBar *option, const QRect &tmp, bool hover, bool sunken)
{
    if (tmp.isNull())
        return;
    bool active = (option->titleBarState & QStyle::State_Active);

    // ### use palette colors instead
    QColor mdiButtonGradientStartColor;
    QColor mdiButtonGradientStopColor;
    if (active) {
        mdiButtonGradientStartColor = QColor((hover || sunken) ? 0x7d8bb1 : 0x55689a);
        mdiButtonGradientStopColor = QColor((hover || sunken) ? 0x939ebe : 0x7381ab);
    } else {
        mdiButtonGradientStartColor = QColor((hover || sunken) ? 0x9e9e9e : 0x818181);
        mdiButtonGradientStopColor = QColor((hover || sunken) ? 0xababab : 0x929292);
    }

    qt_plastique_draw_gradient(painter, tmp.adjusted(1, 1, -1, -1),
                               mdiButtonGradientStartColor, mdiButtonGradientStopColor);

    QColor mdiButtonBorderColor;
    if (active) {
        mdiButtonBorderColor = (hover || sunken) ? QColor(0x627097) : QColor(0x324577);
    } else {
        mdiButtonBorderColor = (hover || sunken) ? QColor(0x838383) : QColor(0x5e5e5e);
    }
    painter->setPen(QPen(mdiButtonBorderColor, 1));

    const QLine lines[4] = {
        QLine(tmp.left() + 2, tmp.top(), tmp.right() - 2, tmp.top()),
        QLine(tmp.left() + 2, tmp.bottom(), tmp.right() - 2, tmp.bottom()),
        QLine(tmp.left(), tmp.top() + 2, tmp.left(), tmp.bottom() - 2),
        QLine(tmp.right(), tmp.top() + 2, tmp.right(), tmp.bottom() - 2) };
    painter->drawLines(lines, 4);

    const QPoint points[4] = {
        QPoint(tmp.left() + 1, tmp.top() + 1),
        QPoint(tmp.right() - 1, tmp.top() + 1),
        QPoint(tmp.left() + 1, tmp.bottom() - 1),
        QPoint(tmp.right() - 1, tmp.bottom() - 1) };
    painter->drawPoints(points, 4);
}

#ifndef QT_NO_DOCKWIDGET
static QString elliditide(const QString &text, const QFontMetrics &fontMetrics, const QRect &rect, int *textWidth = 0)
{
    // Chop and insert ellide into title if text is too wide
    QString title = text;
    int width = textWidth ? *textWidth : fontMetrics.width(text);
    QString ellipsis = QLatin1String("...");
    if (width > rect.width()) {
        QString leftHalf = title.left(title.size() / 2);
        QString rightHalf = title.mid(leftHalf.size() + 1);
        while (!leftHalf.isEmpty() && !rightHalf.isEmpty()) {
            leftHalf.chop(1);
            int width = fontMetrics.width(leftHalf + ellipsis + rightHalf);
            if (width < rect.width()) {
                title = leftHalf + ellipsis + rightHalf;
                width = width;
                break;
            }
            rightHalf.remove(0, 1);
            width = fontMetrics.width(leftHalf + ellipsis + rightHalf);
            if (width < rect.width()) {
                title = leftHalf + ellipsis + rightHalf;
                width = width;
                break;
            }
        }
    }
    if (textWidth)
        *textWidth = width;
    return title;
}
#endif

#if !defined(QT_NO_DOCKWIDGET) || !defined(QT_NO_SPLITTER)
static void qt_plastique_draw_handle(QPainter *painter, const QStyleOption *option,
                                     const QRect &rect, Qt::Orientation orientation,
                                     const QWidget *widget)
{
    QColor borderColor = option->palette.background().color().darker(178);
    QColor alphaCornerColor;
    if (widget) {
        // ### backgroundrole/foregroundrole should be part of the style option
        alphaCornerColor = mergedColors(option->palette.color(widget->backgroundRole()), borderColor);
    } else {
        alphaCornerColor = mergedColors(option->palette.background().color(), borderColor);
    }

    QImage handle(qt_simple_toolbarhandle);
    handle.setColor(1, alphaCornerColor.rgba());
    handle.setColor(2, mergedColors(alphaCornerColor, option->palette.base().color()).rgba());
    handle.setColor(3, option->palette.base().color().rgba());

    const int spacing = 2;

    if (orientation == Qt::Vertical) {
        int nchunks = rect.width() / (handle.width() + spacing);
        for (int i = 0; i < nchunks; ++i)
            painter->drawImage(QPoint(rect.left() + i * (handle.width() + spacing), rect.top()), handle);
    } else {
        int nchunks = rect.height() / (handle.height() + spacing);
        for (int i = 0; i < nchunks; ++i)
            painter->drawImage(QPoint(rect.left(), rect.top() + i * (handle.height() + spacing)), handle);
    }
}
#endif

class QPlastiqueStylePrivate : public QWindowsStylePrivate
{
    Q_DECLARE_PUBLIC(QPlastiqueStyle)
public:
    QPlastiqueStylePrivate();
    virtual ~QPlastiqueStylePrivate();
    void lookupIconTheme() const;

#ifndef QT_NO_PROGRESSBAR
    QList<QProgressBar *> bars;
    int progressBarAnimateTimer;
    QTime timer;
#endif
};

/*!
  \internal
 */
QPlastiqueStylePrivate::QPlastiqueStylePrivate() :
    QWindowsStylePrivate()
#ifndef QT_NO_PROGRESSBAR
    , progressBarAnimateTimer(0)