qplastiquestyle.cpp

奇趣公司比较新的qt/emd版本

    "..  ..  ..",
    ".+  .+  .+",
    "          ",
    "          ",
    "..  ..  ..",
    ".+  .+  .+",
    "          ",
    "          ",
    "..  ..  ..",
    ".+  .+  .+"};

static const char * const qt_scrollbar_slider_pattern_horizontal[] = {
    "18 10 3 1",
    "   c None",
    ".  c #BFBFBF",
    "+  c #979797",
    "..  ..  ..  ..  ..",
    ".+  .+  .+  .+  .+",
    "                  ",
    "                  ",
    "..  ..  ..  ..  ..",
    ".+  .+  .+  .+  .+",
    "                  ",
    "                  ",
    "..  ..  ..  ..  ..",
    ".+  .+  .+  .+  .+"};

static const char * const qt_toolbarhandle[] = {
    "6 6 4 1",
    "       c None",
    ".      c #C5C5C5",
    "+      c #EEEEEE",
    "@      c #FAFAFA",
    "..    ",
    ".+@   ",
    " @@   ",
    "   .. ",
    "   .+@",
    "    @@"};

static const char * const qt_simple_toolbarhandle[] = {
    "3 3 4 1",
    "       c None",
    ".      c #C5C5C5",
    "+      c #EEEEEE",
    "@      c #FAFAFA",
    ".. ",
    ".+@",
    " @@"};

static const char * const qt_titlebar_context_help[] = {
"27 27 5 1",
"  c None",
". c #0A0C12",
"+ c #1B202D",
"@ c #293144",
"# c #3C435D",
"                           ",
"                           ",
"                           ",
"                           ",
"                           ",
"                           ",
"                           ",
"                           ",
"           +@##@+          ",
"         .@@@.+@@..        ",
"         .##+  +@@+.       ",
"         .##@  @#@+.       ",
"         ....  +@+..       ",
"            .@+@@..        ",
"            +#@@+          ",
"            .##.           ",
"            .++.           ",
"            .++.           ",
"            +##+           ",
"            .@@.           ",
"                           ",
"                           ",
"                           ",
"                           ",
"                           ",
"                           ",
"                           "};

#define BEGIN_PLASTIQUE_PIXMAPCACHE(a) \
    QRect rect = button->rect; \
    QPixmap cache; \
    QPainter *p = painter; \
    QString unique = uniqueName((a), option, option->rect.size()); \
    if (UsePixmapCache) { \
        if (!QPixmapCache::find(unique, cache)) { \
            rect.setRect(0, 0, option->rect.width(), option->rect.height()); \
            cache = QPixmap(option->rect.size()); \
            cache.fill(Qt::transparent); \
            p = new QPainter(&cache); \
        } else { \
            painter->drawPixmap(button->rect.topLeft(), cache); \
            break; \
        } \
    }

#define END_PLASTIQUE_PIXMAPCACHE \
    if (p != painter) { \
        p->end(); \
        delete p; \
        painter->drawPixmap(option->rect.topLeft(), cache); \
        QPixmapCache::insert(unique, cache); \
    }

static QLinearGradient qMapGradientToRect(const QLinearGradient &gradient, const QRectF &rect)
{
    QLinearGradient tmpGrad(rect.center().x(), rect.top(),
                            rect.center().x(), rect.bottom());
    tmpGrad.setStops(gradient.stops());
    return tmpGrad;
}

static QBrush qMapBrushToRect(const QBrush &brush, const QRectF &rect)
{
    if (!brush.gradient())
        return brush;

    // ### Ugly assumption that it's a linear gradient
    QBrush tmp(qMapGradientToRect(*static_cast<const QLinearGradient *>(brush.gradient()), rect));
    return tmp;
}

static void qBrushSetAlphaF(QBrush *brush, qreal alpha)
{
    if (const QGradient *gradient = brush->gradient()) {
        // Use the gradient. Call QColor::setAlphaF() on all color stops.
        QGradientStops stops = gradient->stops();
        QMutableVectorIterator<QGradientStop> it(stops);
        QColor tmpColor;
        while (it.hasNext()) {
            it.next();
            tmpColor = it.value().second;
            tmpColor.setAlphaF(alpha * tmpColor.alphaF());
            it.setValue(QPair<qreal, QColor>(it.value().first, tmpColor));
        }

        switch (gradient->type()) {
        case QGradient::RadialGradient: {
            QRadialGradient grad = *static_cast<const QRadialGradient *>(gradient);
            grad.setStops(stops);
            *brush = QBrush(grad);
            break;
        }
        case QGradient::ConicalGradient: {
            QConicalGradient grad = *static_cast<const QConicalGradient *>(gradient);
            grad.setStops(stops);
            *brush = QBrush(grad);
            break;
        }
        default:
            qWarning("QPlastiqueStyle::qBrushLight() - unknown gradient type"
                     " - falling back to QLinearGradient");
        case QGradient::LinearGradient: {
            QLinearGradient grad = *static_cast<const QLinearGradient *>(gradient);
            grad.setStops(stops);
            *brush = QBrush(grad);
            break;
        }
        }
    } else if (!brush->texture().isNull()) {
        // Modify the texture - ridiculously expensive.
        QPixmap texture = brush->texture();
        QPixmap pixmap;
        QString name = QString::fromLatin1("qbrushtexture-alpha-%1-%2").arg(alpha).arg(texture.cacheKey());
        if (UsePixmapCache && !QPixmapCache::find(name, pixmap)) {
            QImage image = texture.toImage();
            QRgb *rgb = reinterpret_cast<QRgb *>(image.bits());
            int pixels = image.width() * image.height();
            QColor tmpColor;
            while (pixels--) {
                tmpColor.setRgb(*rgb);
                tmpColor.setAlphaF(alpha * tmpColor.alphaF());
                *rgb++ = tmpColor.rgba();
            }
            pixmap = QPixmap::fromImage(image);
            QPixmapCache::insert(name, pixmap);
        }
        brush->setTexture(pixmap);
    } else {
        // Use the color
        QColor tmpColor = brush->color();
        tmpColor.setAlphaF(alpha * tmpColor.alphaF());
        brush->setColor(tmpColor);
    }
}

static QBrush qBrushLight(QBrush brush, int light)
{
    if (const QGradient *gradient = brush.gradient()) {
        // Use the gradient. Call QColor::lighter() on all color stops.
        QGradientStops stops = gradient->stops();
        QMutableVectorIterator<QGradientStop> it(stops);
        while (it.hasNext()) {
            it.next();
            it.setValue(QPair<qreal, QColor>(it.value().first, it.value().second.lighter(light)));
        }

        switch (gradient->type()) {
        case QGradient::RadialGradient: {
            QRadialGradient grad = *static_cast<const QRadialGradient *>(gradient);
            grad.setStops(stops);
            brush = QBrush(grad);
            break;
        }
        case QGradient::ConicalGradient: {
            QConicalGradient grad = *static_cast<const QConicalGradient *>(gradient);
            grad.setStops(stops);
            brush = QBrush(grad);
            break;
        }
        default:
            qWarning("QPlastiqueStyle::qBrushLight() - unknown gradient type"
                     " - falling back to QLinearGradient");
        case QGradient::LinearGradient: {
            QLinearGradient grad = *static_cast<const QLinearGradient *>(gradient);
            grad.setStops(stops);
            brush = QBrush(grad);
            break;
        }
        }
    } else if (!brush.texture().isNull()) {
        // Modify the texture - ridiculously expensive.
        QPixmap texture = brush.texture();
        QPixmap pixmap;
        QString name = QString::fromLatin1("qbrushtexture-light-%1-%2").arg(light).arg(texture.cacheKey());
        if (UsePixmapCache && !QPixmapCache::find(name, pixmap)) {
            QImage image = texture.toImage();
            QRgb *rgb = reinterpret_cast<QRgb *>(image.bits());
            int pixels = image.width() * image.height();
            QColor tmpColor;
            while (pixels--) {
                tmpColor.setRgb(*rgb);
                *rgb++ = tmpColor.lighter(light).rgba();
            }
            pixmap = QPixmap::fromImage(image);
            QPixmapCache::insert(name, pixmap);
        }
        brush.setTexture(pixmap);
    } else {
        // Use the color
        brush.setColor(brush.color().lighter(light));
    }
    return brush;
}

static QBrush qBrushDark(QBrush brush, int dark)
{
    if (const QGradient *gradient = brush.gradient()) {
        // Use the gradient. Call QColor::darker() on all color stops.
        QGradientStops stops = gradient->stops();
        QMutableVectorIterator<QGradientStop> it(stops);
        while (it.hasNext()) {
            it.next();
            it.setValue(QPair<qreal, QColor>(it.value().first, it.value().second.darker(dark)));
        }

        switch (gradient->type()) {
        case QGradient::RadialGradient: {
            QRadialGradient grad = *static_cast<const QRadialGradient *>(gradient);
            grad.setStops(stops);
            brush = QBrush(grad);
            break;
        }
        case QGradient::ConicalGradient: {
            QConicalGradient grad = *static_cast<const QConicalGradient *>(gradient);
            grad.setStops(stops);
            brush = QBrush(grad);
            break;
        }
        default:
            qWarning("QPlastiqueStyle::qBrushDark() - unknown gradient type"
                     " - falling back to QLinearGradient");
        case QGradient::LinearGradient: {
            QLinearGradient grad = *static_cast<const QLinearGradient *>(gradient);
            grad.setStops(stops);
            brush = QBrush(grad);
            break;
        }
        }
    } else if (!brush.texture().isNull()) {
        // Modify the texture - ridiculously expensive.
        QPixmap texture = brush.texture();
        QPixmap pixmap;
        QString name = QString::fromLatin1("qbrushtexture-dark-%1-%2").arg(dark).arg(brush.texture().cacheKey());
        if (UsePixmapCache && !QPixmapCache::find(name, pixmap)) {
            QImage image = texture.toImage();
            QRgb *rgb = reinterpret_cast<QRgb *>(image.bits());
            int pixels = image.width() * image.height();
            QColor tmpColor;
            while (pixels--) {
                tmpColor.setRgb(*rgb);
                *rgb++ = tmpColor.darker(dark).rgba();
            }
            pixmap = QPixmap::fromImage(image);
            QPixmapCache::insert(name, pixmap);
        }
        brush.setTexture(pixmap);
    } else {
        // Use the color
        brush.setColor(brush.color().darker(dark));
    }
    return brush;
}

/*
    Draws a rounded frame using the provided brush for 1, and adds 0.5 alpha
    for 0.

     0111111110
    01        10
    1          1
    1          1
    1          1
    01        10
     0111111110
*/
static void qt_plastique_draw_frame(QPainter *painter, const QRect &rect, const QStyleOption *option,
                                    QFrame::Shadow shadow = QFrame::Plain)
{
    QPen oldPen = painter->pen();
    QBrush border;
    QBrush corner;
    QBrush innerTopLeft;
    QBrush innerBottomRight;

    if (shadow != QFrame::Plain && (option->state & QStyle::State_HasFocus)) {
        border = option->palette.highlight();
        qBrushSetAlphaF(&border, 0.8);