qcommonstyle.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

                                || 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());
                QMatrix m;
                m.translate(newX, newY);
                m.rotate(newRot);
                p->setMatrix(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);
            }

            if (verticalTabs){
                QPixmap pixmap(tr.size());
                pixmap.fill(Qt::transparent);
                QPainter pixPainter(&pixmap);
                drawItemText(&pixPainter, pixmap.rect(), alignment, tab->palette, tab->state & State_Enabled, tab->text, QPalette::Foreground);
                drawItemPixmap(p,tr,alignment,pixmap);
                p->restore();
            } else {
                drawItemText(p, tr, alignment, tab->palette, tab->state & State_Enabled, tab->text, QPalette::Foreground);
            }

            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;

        if (opt->direction == Qt::RightToLeft) {
            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 {
            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;
            }
        }
        p->restore();
        break; }
#endif // QT_NO_SIZEGRIP
#ifndef QT_NO_RUBBERBAND
    case CE_RubberBand: {
        if (const QStyleOptionRubberBand *rbOpt = qstyleoption_cast<const QStyleOptionRubberBand *>(opt)) {
            QPixmap tiledPixmap(16, 16);
            QPainter pixmapPainter(&tiledPixmap);
            pixmapPainter.setPen(Qt::NoPen);
            pixmapPainter.setBrush(Qt::Dense4Pattern);
            pixmapPainter.setBackground(QBrush(opt->palette.base()));
            pixmapPainter.setBackgroundMode(Qt::OpaqueMode);
            pixmapPainter.drawRect(0, 0, tiledPixmap.width(), tiledPixmap.height());
            pixmapPainter.end();
            // ### workaround for borked XRENDER
            tiledPixmap = QPixmap::fromImage(tiledPixmap.toImage());

            p->save();
            QRect r = opt->rect;
            QStyleHintReturnMask mask;
            if (styleHint(QStyle::SH_RubberBand_Mask, opt, widget, &mask))
                p->setClipRegion(mask.region);
            p->drawTiledPixmap(r.x(), r.y(), r.width(), r.height(), tiledPixmap);
            p->setPen(opt->palette.color(QPalette::Active, QPalette::Foreground));
            p->setBrush(Qt::NoBrush);
            p->drawRect(r.adjusted(0, 0, -1, -1));
            if (rbOpt->shape == QRubberBand::Rectangle)
                p->drawRect(r.adjusted(3, 3, -4, -4));
            p->restore();
        }
        break; }
#endif // QT_NO_RUBBERBAND
#ifndef QT_NO_DOCKWIDGET
    case CE_DockWidgetTitle:
        if (const QStyleOptionDockWidget *dwOpt = qstyleoption_cast<const QStyleOptionDockWidget *>(opt)) {
            QRect r = dwOpt->rect.adjusted(0, 0, -1, -1);
            if (dwOpt->movable) {
                p->setPen(dwOpt->palette.color(QPalette::Dark));
                p->drawRect(r);
            }

            if (!dwOpt->title.isEmpty()) {
                const int indent = p->fontMetrics().descent();
                drawItemText(p, r.adjusted(indent + 1, 1, -indent - 1, -1),
                              Qt::AlignLeft | Qt::AlignVCenter, dwOpt->palette,
                              dwOpt->state & State_Enabled, dwOpt->title,
                              QPalette::Foreground);
            }
        }
        break;
#endif // QT_NO_DOCKWIDGET
    case CE_Header:
        if (const QStyleOptionHeader *header = qstyleoption_cast<const QStyleOptionHeader *>(opt)) {
            QRegion clipRegion = p->clipRegion();
            p->setClipRect(opt->rect);
            drawControl(CE_HeaderSection, header, p, widget);
            QStyleOptionHeader subopt = *header;
            subopt.rect = subElementRect(SE_HeaderLabel, header, widget);
            if (subopt.rect.isValid())
                drawControl(CE_HeaderLabel, &subopt, p, widget);
            if (header->sortIndicator != QStyleOptionHeader::None) {
                subopt.rect = subElementRect(SE_HeaderArrow, opt, widget);
                drawPrimitive(PE_IndicatorHeaderArrow, &subopt, p, widget);
            }
            p->setClipRegion(clipRegion);
        }
        break;
    case CE_FocusFrame:
        p->fillRect(opt->rect, opt->palette.foreground());
        break;
    case CE_HeaderSection:
        qDrawShadePanel(p, opt->rect, opt->palette,
                        opt->state & State_Sunken, 1,
                        &opt->palette.brush(QPalette::Button));
        break;
#ifndef QT_NO_COMBOBOX
    case CE_ComboBoxLabel:
        if (const QStyleOptionComboBox *cb = qstyleoption_cast<const QStyleOptionComboBox *>(opt)) {
            QRect editRect = subControlRect(CC_ComboBox, cb, SC_ComboBoxEditField, widget);
            p->save();
            p->setClipRect(editRect);
            if (!cb->currentIcon.isNull()) {
                QIcon::Mode mode = cb->state & State_Enabled ? QIcon::Normal
                                                             : QIcon::Disabled;
                QPixmap pixmap = cb->currentIcon.pixmap(cb->iconSize, mode);
                QRect iconRect(editRect);
                iconRect.setWidth(cb->iconSize.width() + 4);
                iconRect = alignedRect(QApplication::layoutDirection(),
                                       Qt::AlignLeft | Qt::AlignVCenter,
                                       iconRect.size(), editRect);
                if (cb->editable)
                    p->fillRect(iconRect, opt->palette.brush(QPalette::Base));
                drawItemPixmap(p, iconRect, Qt::AlignCenter, pixmap);

                if (cb->direction == Qt::RightToLeft)
                    editRect.translate(-4 - cb->iconSize.width(), 0);
                else
                    editRect.translate(cb->iconSize.width() + 4, 0);
            }
            if (!cb->currentText.isEmpty() && !cb->editable) {
                drawItemText(p, editRect.adjusted(1, 0, -1, 0), Qt::AlignLeft | Qt::AlignVCenter, cb->palette,
                             cb->state & State_Enabled, cb->currentText);
            }
            p->restore();
        }
        break;
#endif // QT_NO_COMBOBOX
#ifndef QT_NO_TOOLBAR
    case CE_ToolBar:
        if (const QStyleOptionToolBar *toolBar = qstyleoption_cast<const QStyleOptionToolBar *>(opt)) {
            // Compatibility with styles that use PE_PanelToolBar
            QStyleOptionFrame frame;
            frame.QStyleOption::operator=(*toolBar);
            frame.lineWidth = toolBar->lineWidth;
            frame.midLineWidth = toolBar->midLineWidth;
            drawPrimitive(PE_PanelToolBar, opt, p, widget);

            if (widget && qobject_cast<QToolBar *>(widget->parentWidget()))
                break;
            qDrawShadePanel(p, toolBar->rect, toolBar->palette, false, toolBar->lineWidth,
                            &toolBar->palette.brush(QPalette::Button));
        }
        break;
#endif // QT_NO_TOOLBAR
    default:
        break;
    }
}


/*!
  \reimp
*/
QRect QCommonStyle::subElementRect(SubElement sr, const QStyleOption *opt, const QWidget *widget) const
{
    QRect r;
    switch (sr) {
    case SE_PushButtonContents:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            int dx1, dx2;
            dx1 = pixelMetric(PM_DefaultFrameWidth, btn, widget);
            if (btn->features & QStyleOptionButton::AutoDefaultButton)
                dx1 += pixelMetric(PM_ButtonDefaultIndicator, btn, widget);
            dx2 = dx1 * 2;
            r.setRect(opt->rect.x() + dx1, opt->rect.y() + dx1, opt->rect.width() - dx2,
                      opt->rect.height() - dx2);
            r = visualRect(opt->direction, opt->rect, r);
        }
        break;
    case SE_PushButtonFocusRect:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            int dbw1 = 0, dbw2 = 0;
            if (btn->features & QStyleOptionButton::AutoDefaultButton){
                dbw1 = pixelMetric(PM_ButtonDefaultIndicator, btn, widget);
                dbw2 = dbw1 * 2;
            }

            int dfw1 = pixelMetric(PM_DefaultFrameWidth, btn, widget) + 1,
                dfw2 = dfw1 * 2;

            r.setRect(btn->rect.x() + dfw1 + dbw1, btn->rect.y() + dfw1 + dbw1,
                      btn->rect.width() - dfw2 - dbw2, btn->rect.height()- dfw2 - dbw2);
            r = visualRect(opt->direction, opt->rect, r);
        }
        break;
    case SE_ViewItemCheckIndicator:
        r = subElementRect(SE_CheckBoxIndicator, opt, widget);
        break;
    case SE_CheckBoxIndicator:
        {
            int h = pixelMetric(PM_IndicatorHeight, opt, widget);
            r.setRect(opt->rect.x(), opt->rect.y() + ((opt->rect.height() - h) / 2),
                      pixelMetric(PM_IndicatorWidth, opt, widget), h);
            r = visualRect(opt->direction, opt->rect, r);
        }
        break;

    case SE_CheckBoxContents:
        {
            // Deal with the logical first, then convert it back to screen coords.
            QRect ir = visualRect(opt->direction, opt->rect,
                                  subElementRect(SE_CheckBoxIndicator, opt, widget));
            r.setRect(ir.right() + 6, opt->rect.y(), opt->rect.width() - ir.width() - 6,
                      opt->rect.height());
            r = visualRect(opt->direction, opt->rect, r);
        }
        break;

    case SE_CheckBoxFocusRect: