qcommonstyle.cpp

奇趣公司比较新的qt/emd版本

                p->drawLine(tb->rect.width() - 20, tb->rect.height() - 1,
                            tb->rect.width(), tb->rect.height() - 1);
            } else {
                p->drawLine(tb->rect.width() - 1, 2, d - 1, 2);
                p->drawLine(d, 2, 20, tb->rect.height() - 1);
                p->drawLine(19, tb->rect.height() - 1,
                            -1, tb->rect.height() - 1);
            }
            p->setBrush(Qt::NoBrush);
        }
        break;
#endif // QT_NO_TOOLBOX
#ifndef QT_NO_TABBAR
    case CE_TabBarTab:
        if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
            drawControl(CE_TabBarTabShape, tab, p, widget);
            drawControl(CE_TabBarTabLabel, tab, p, widget);
        }
        break;
    case CE_TabBarTabShape:
        if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
            p->save();

            QRect rect(tab->rect);
            bool selected = tab->state & State_Selected;
            bool onlyOne = tab->position == QStyleOptionTab::OnlyOneTab;
            int tabOverlap = onlyOne ? 0 : pixelMetric(PM_TabBarTabOverlap, opt, widget);

            if (!selected) {
                switch (tab->shape) {
                case QTabBar::TriangularNorth:
                    rect.adjust(0, 0, 0, -tabOverlap);
                    if(!selected)
                        rect.adjust(1, 1, -1, 0);
                    break;
                case QTabBar::TriangularSouth:
                    rect.adjust(0, tabOverlap, 0, 0);
                    if(!selected)
                        rect.adjust(1, 0, -1, -1);
                    break;
                case QTabBar::TriangularEast:
                    rect.adjust(tabOverlap, 0, 0, 0);
                    if(!selected)
                        rect.adjust(0, 1, -1, -1);
                    break;
                case QTabBar::TriangularWest:
                    rect.adjust(0, 0, -tabOverlap, 0);
                    if(!selected)
                        rect.adjust(1, 1, 0, -1);
                    break;
                default:
                    break;
                }
            }

            p->setPen(QPen(tab->palette.foreground(), 0));
            if (selected) {
                p->setBrush(tab->palette.base());
            } else {
                if (widget && widget->parentWidget())
                    p->setBrush(widget->parentWidget()->palette().background());
                else
                    p->setBrush(tab->palette.background());
            }

            int y;
            int x;
            QPolygon a(10);
            switch (tab->shape) {
            case QTabBar::TriangularNorth:
            case QTabBar::TriangularSouth: {
                a.setPoint(0, 0, -1);
                a.setPoint(1, 0, 0);
                y = rect.height() - 2;
                x = y / 3;
                a.setPoint(2, x++, y - 1);
                ++x;
                a.setPoint(3, x++, y++);
                a.setPoint(4, x, y);

                int i;
                int right = rect.width() - 1;
                for (i = 0; i < 5; ++i)
                    a.setPoint(9 - i, right - a.point(i).x(), a.point(i).y());
                if (tab->shape == QTabBar::TriangularNorth)
                    for (i = 0; i < 10; ++i)
                        a.setPoint(i, a.point(i).x(), rect.height() - 1 - a.point(i).y());

                a.translate(rect.left(), rect.top());
                p->setRenderHint(QPainter::Antialiasing);
                p->translate(0, 0.5);

                QPainterPath path;
                path.addPolygon(a);
                p->drawPath(path);
                break; }
            case QTabBar::TriangularEast:
            case QTabBar::TriangularWest: {
                a.setPoint(0, -1, 0);
                a.setPoint(1, 0, 0);
                x = rect.width() - 2;
                y = x / 3;
                a.setPoint(2, x - 1, y++);
                ++y;
                a.setPoint(3, x++, y++);
                a.setPoint(4, x, y);
                int i;
                int bottom = rect.height() - 1;
                for (i = 0; i < 5; ++i)
                    a.setPoint(9 - i, a.point(i).x(), bottom - a.point(i).y());
                if (tab->shape == QTabBar::TriangularWest)
                    for (i = 0; i < 10; ++i)
                        a.setPoint(i, rect.width() - 1 - a.point(i).x(), a.point(i).y());
                a.translate(rect.left(), rect.top());
                p->setRenderHint(QPainter::Antialiasing);
                p->translate(0.5, 0);
                QPainterPath path;
                path.addPolygon(a);
                p->drawPath(path);
                break; }
            default:
                break;
            }
            p->restore();
        }
        break;
    case CE_ToolBoxTabLabel:
        if (const QStyleOptionToolBox *tb = qstyleoption_cast<const QStyleOptionToolBox *>(opt)) {
            bool enabled = tb->state & State_Enabled;
            bool selected = tb->state & State_Selected;
            QPixmap pm = tb->icon.pixmap(pixelMetric(QStyle::PM_SmallIconSize, tb, widget),
                                         enabled ? QIcon::Normal : QIcon::Disabled);

            QRect cr = subElementRect(QStyle::SE_ToolBoxTabContents, tb, widget);
            QRect tr, ir;
            int ih = 0;
            if (pm.isNull()) {
                tr = cr;
                tr.adjust(4, 0, -8, 0);
            } else {
                int iw = pm.width() + 4;
                ih = pm.height();
                ir = QRect(cr.left() + 4, cr.top(), iw + 2, ih);
                tr = QRect(ir.right(), cr.top(), cr.width() - ir.right() - 4, cr.height());
            }

            if (selected && styleHint(QStyle::SH_ToolBox_SelectedPageTitleBold, tb, widget)) {
                QFont f(p->font());
                f.setBold(true);
                p->setFont(f);
            }

            QString txt = tb->fontMetrics.elidedText(tb->text, Qt::ElideRight, tr.width());

            if (ih)
                p->drawPixmap(ir.left(), (tb->rect.height() - ih) / 2, pm);

            int alignment = Qt::AlignLeft | Qt::AlignVCenter | Qt::TextShowMnemonic;
            if (!styleHint(QStyle::SH_UnderlineShortcut, tb, widget))
                alignment |= Qt::TextHideMnemonic;
            drawItemText(p, tr, alignment, tb->palette, enabled, txt, QPalette::ButtonText);

            if (!txt.isEmpty() && opt->state & State_HasFocus) {
                QStyleOptionFocusRect opt;
                opt.rect = tr;
                opt.palette = tb->palette;
                opt.state = QStyle::State_None;
                drawPrimitive(QStyle::PE_FrameFocusRect, &opt, p, widget);
            }
        }
        break;
    case CE_TabBarTabLabel:
        if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
            QStyleOptionTabV2 tabV2(*tab);
            QRect tr = tabV2.rect;
            bool verticalTabs = tabV2.shape == QTabBar::RoundedEast
                                || tabV2.shape == QTabBar::RoundedWest
                                || tabV2.shape == QTabBar::TriangularEast
                                || tabV2.shape == QTabBar::TriangularWest;
            bool selected = tabV2.state & State_Selected;
            if (verticalTabs) {
                p->save();
                int newX, newY, newRot;
                if (tabV2.shape == QTabBar::RoundedEast || tabV2.shape == QTabBar::TriangularEast) {
                    newX = tr.width();
                    newY = tr.y();
                    newRot = 90;
                } else {
                    newX = 0;
                    newY = tr.y() + tr.height();
                    newRot = -90;
                }
                tr.setRect(0, 0, tr.height(), tr.width());
                QTransform m;
                m.translate(newX, newY);
                m.rotate(newRot);
                p->setTransform(m, true);
            }
            tr.adjust(0, 0, pixelMetric(QStyle::PM_TabBarTabShiftHorizontal, tab, widget),
                            pixelMetric(QStyle::PM_TabBarTabShiftVertical, tab, widget));

            if (selected)
            {
                tr.setBottom(tr.bottom() - pixelMetric(QStyle::PM_TabBarTabShiftVertical, tab,
                                                    widget));
                tr.setRight(tr.right() - pixelMetric(QStyle::PM_TabBarTabShiftHorizontal, tab,
                                                    widget));
            }

            int alignment = Qt::AlignCenter | Qt::TextShowMnemonic;
            if (!styleHint(SH_UnderlineShortcut, opt, widget))
                alignment |= Qt::TextHideMnemonic;
            if (!tabV2.icon.isNull()) {
                QSize iconSize = tabV2.iconSize;
                if (!iconSize.isValid()) {
                    int iconExtent = pixelMetric(PM_SmallIconSize);
                    iconSize = QSize(iconExtent, iconExtent);
                }
                QPixmap tabIcon = tabV2.icon.pixmap(iconSize,
                                                    (tabV2.state & State_Enabled) ? QIcon::Normal
                                                                                  : QIcon::Disabled);
                p->drawPixmap(tr.left() + 6, tr.center().y() - tabIcon.height() / 2, tabIcon);
                tr.setLeft(tr.left() + iconSize.width() + 4);
            }

            drawItemText(p, tr, alignment, tab->palette, tab->state & State_Enabled, tab->text, QPalette::WindowText);
            if (verticalTabs)
                p->restore();

            if (tabV2.state & State_HasFocus) {
                const int OFFSET = 1 + pixelMetric(PM_DefaultFrameWidth);

                int x1, x2;
                x1 = tabV2.rect.left();
                x2 = tabV2.rect.right() - 1;

                QStyleOptionFocusRect fropt;
                fropt.QStyleOption::operator=(*tab);
                fropt.rect.setRect(x1 + 1 + OFFSET, tabV2.rect.y() + OFFSET,
                                   x2 - x1 - 2*OFFSET, tabV2.rect.height() - 2*OFFSET);
                drawPrimitive(PE_FrameFocusRect, &fropt, p, widget);
            }
        }
        break;
#endif // QT_NO_TABBAR
#ifndef QT_NO_SIZEGRIP
    case CE_SizeGrip: {
        p->save();
        int x, y, w, h;
        opt->rect.getRect(&x, &y, &w, &h);

        int sw = qMin(h, w);
        if (h > w)
            p->translate(0, h - w);
        else
            p->translate(w - h, 0);

        int sx = x;
        int sy = y;
        int s = sw / 3;

        Qt::Corner corner;
        if (const QStyleOptionSizeGrip *sgOpt = qstyleoption_cast<const QStyleOptionSizeGrip *>(opt))
            corner = sgOpt->corner;
        else if (opt->direction == Qt::RightToLeft)
            corner = Qt::BottomLeftCorner;
        else
            corner = Qt::BottomRightCorner;

        if (corner == Qt::BottomLeftCorner) {
            sx = x + sw;
            for (int i = 0; i < 4; ++i) {
                p->setPen(QPen(opt->palette.light().color(), 1));
                p->drawLine(x, sy - 1 , sx + 1, sw);
                p->setPen(QPen(opt->palette.dark().color(), 1));
                p->drawLine(x, sy, sx, sw);
                p->setPen(QPen(opt->palette.dark().color(), 1));
                p->drawLine(x, sy + 1, sx - 1, sw);
                sx -= s;
                sy += s;
            }
        } else if (corner == Qt::BottomRightCorner) {
            for (int i = 0; i < 4; ++i) {
                p->setPen(QPen(opt->palette.light().color(), 1));
                p->drawLine(sx - 1, sw, sw, sy - 1);
                p->setPen(QPen(opt->palette.dark().color(), 1));
                p->drawLine(sx, sw, sw, sy);
                p->setPen(QPen(opt->palette.dark().color(), 1));
                p->drawLine(sx + 1, sw, sw, sy + 1);
                sx += s;
                sy += s;
            }
        } else if (corner == Qt::TopRightCorner) {
            sy = y + sw;
            for (int i = 0; i < 4; ++i) {
                p->setPen(QPen(opt->palette.light().color(), 1));
                p->drawLine(sx - 1, y, sw, sy + 1);
                p->setPen(QPen(opt->palette.dark().color(), 1));
                p->drawLine(sx, y, sw, sy);
                p->setPen(QPen(opt->