qwindowsstyle.cpp

奇趣公司比较新的qt/emd版本

                                  const QWidget *w) const
{
    // Used to restore across fallthrough cases. Currently only used in PE_IndicatorCheckBox
    bool doRestore = false;

    switch (pe) {
#ifndef QT_NO_TOOLBAR
  case PE_IndicatorToolBarSeparator:
        {
            QRect rect = opt->rect;
            const int margin = 2;
            QPen oldPen = p->pen();
            if(opt->state & State_Horizontal){
                const int offset = rect.width()/2;
                p->setPen(QPen(opt->palette.dark().color()));
                p->drawLine(rect.bottomLeft().x() + offset,
                            rect.bottomLeft().y() - margin,
                            rect.topLeft().x() + offset,
                            rect.topLeft().y() + margin);
                p->setPen(QPen(opt->palette.light().color()));
                p->drawLine(rect.bottomLeft().x() + offset + 1,
                            rect.bottomLeft().y() - margin,
                            rect.topLeft().x() + offset + 1,
                            rect.topLeft().y() + margin);
            }
            else{ //Draw vertical separator
                const int offset = rect.height()/2;
                p->setPen(QPen(opt->palette.dark().color()));
                p->drawLine(rect.topLeft().x() + margin ,
                            rect.topLeft().y() + offset,
                            rect.topRight().x() - margin,
                            rect.topRight().y() + offset);
                p->setPen(QPen(opt->palette.light().color()));
                p->drawLine(rect.topLeft().x() + margin ,
                            rect.topLeft().y() + offset + 1,
                            rect.topRight().x() - margin,
                            rect.topRight().y() + offset + 1);
            }
            p->setPen(oldPen);
        }
        break;
    case PE_IndicatorToolBarHandle:
        p->save();
        p->translate(opt->rect.x(), opt->rect.y());
        if (opt->state & State_Horizontal) {
            int x = opt->rect.width() / 2 - 4;
            if (QApplication::layoutDirection() == Qt::RightToLeft)
                x -= 2;
            if (opt->rect.height() > 4) {
                qDrawShadePanel(p, x, 2, 3, opt->rect.height() - 4,
                                opt->palette, false, 1, 0);
                qDrawShadePanel(p, x + 3, 2, 3, opt->rect.height() - 4,
                                opt->palette, false, 1, 0);
            }
        } else {
            if (opt->rect.width() > 4) {
                int y = opt->rect.height() / 2 - 4;
                qDrawShadePanel(p, 2, y, opt->rect.width() - 4, 3,
                                opt->palette, false, 1, 0);
                qDrawShadePanel(p, 2, y + 3, opt->rect.width() - 4, 3,
                                opt->palette, false, 1, 0);
            }
        }
        p->restore();
        break;

#endif // QT_NO_TOOLBAR
    case PE_FrameButtonTool:
    case PE_PanelButtonTool: {
        QPen oldPen = p->pen();
#ifndef QT_NO_DOCKWIDGET
        if (w && w->inherits("QDockWidgetTitleButton")) {
           if (const QWidget *dw = w->parentWidget())
                if (dw->isWindow()){
                    qDrawWinButton(p, opt->rect.adjusted(1, 1, 0, 0), opt->palette, opt->state & (State_Sunken | State_On),
                           &opt->palette.button());

                    return;
                }
        }
#endif // QT_NO_DOCKWIDGET
        QBrush fill;
        bool stippled;
        bool panel = (pe == PE_PanelButtonTool);
        if ((!(opt->state & State_Sunken ))
            && (!(opt->state & State_Enabled)
                || !(opt->state & State_MouseOver && opt->state & State_AutoRaise))
            && (opt->state & State_On) && use2000style) {
            fill = QBrush(opt->palette.light().color(), Qt::Dense4Pattern);
            stippled = true;
        } else {
            fill = opt->palette.brush(QPalette::Button);
            stippled = false;
        }

        if (opt->state & (State_Raised | State_Sunken | State_On)) {
            if (opt->state & State_AutoRaise) {
                if(opt->state & (State_Enabled | State_Sunken | State_On)){
                    if (panel)
                        qDrawShadePanel(p, opt->rect, opt->palette,
                                        opt->state & (State_Sunken | State_On), 1, &fill);
                    else
                        qDrawShadeRect(p, opt->rect, opt->palette,
                                       opt->state & (State_Sunken | State_On), 1);
                }
                if (stippled) {
                    p->setPen(opt->palette.button().color());
                    p->drawRect(opt->rect.adjusted(1,1,-2,-2));
                }
            } else {
                qDrawWinButton(p, opt->rect, opt->palette,
                               opt->state & (State_Sunken | State_On), panel ? &fill : 0);
            }
        } else {
            p->fillRect(opt->rect, fill);
        }
        p->setPen(oldPen);
        break; }
    case PE_PanelButtonCommand:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            QBrush fill;
            State flags = opt->state;
            QPalette pal = opt->palette;
            QRect r = opt->rect;
            if (! (flags & State_Sunken) && (flags & State_On))
                fill = QBrush(pal.light().color(), Qt::Dense4Pattern);
            else
                fill = pal.brush(QPalette::Button);

            if (btn->features & QStyleOptionButton::DefaultButton && flags & State_Sunken) {
                p->setPen(pal.dark().color());
                p->setBrush(fill);
                p->drawRect(r.adjusted(0, 0, -1, -1));
            } else if (flags & (State_Raised | State_Sunken | State_On | State_Sunken)) {
                qDrawWinButton(p, r, pal, flags & (State_Sunken | State_On),
                               &fill);
            } else {
                p->fillRect(r, fill);
            }
        }
        break;
    case PE_FrameDefaultButton: {
        QPen oldPen = p->pen();
        p->setPen(opt->palette.shadow().color());
        QRect rect = opt->rect;
        rect.adjust(0, 0, -1, -1);
        p->drawRect(rect);
        p->setPen(oldPen);
        break;
    }
    case PE_IndicatorArrowUp:
    case PE_IndicatorArrowDown:
    case PE_IndicatorArrowRight:
    case PE_IndicatorArrowLeft:
        {
            if (opt->rect.width() <= 0 || opt->rect.height() <= 0)
                break;
            QRect r = opt->rect;
            int size = qMin(r.height(), r.width());
            QPixmap pixmap;
            QString pixmapName;
            pixmapName.sprintf("%s-%s-%d-%d-%d-%lld",
                               "$qt_ia", metaObject()->className(),
                               uint(opt->state), pe,
                               size, opt->palette.cacheKey());
            if (!QPixmapCache::find(pixmapName, pixmap)) {
                int border = size/5;
                size = 2*(size/2);
                QImage image(size, size, QImage::Format_ARGB32);
                image.fill(Qt::transparent);
                QPainter imagePainter(&image);

                QPolygon a;
                switch (pe) {
                    case PE_IndicatorArrowUp:
                        a.setPoints(3, border, size/2,  size/2, border,  size - border, size/2);
                        break;
                    case PE_IndicatorArrowDown:
                        a.setPoints(3, border, size/2,  size/2, size - border,  size - border, size/2);
                        break;
                    case PE_IndicatorArrowRight:
                        a.setPoints(3, size - border, size/2,  size/2, border,  size/2, size - border);
                        break;
                    case PE_IndicatorArrowLeft:
                        a.setPoints(3, border, size/2,  size/2, border,  size/2, size - border);
                        break;
                    default:
                        break;
                }

                int bsx = 0;
                int bsy = 0;

                if (opt->state & State_Sunken) {
                    bsx = pixelMetric(PM_ButtonShiftHorizontal);
                    bsy = pixelMetric(PM_ButtonShiftVertical);
                }

                QRect bounds = a.boundingRect();
                int sx = size / 2 - bounds.center().x() - 1;
                int sy = size / 2 - bounds.center().y() - 1;
                imagePainter.translate(sx + bsx, sy + bsy);
                imagePainter.setPen(opt->palette.buttonText().color());
                imagePainter.setBrush(opt->palette.buttonText());

                if (!(opt->state & State_Enabled)) {
                    imagePainter.translate(1, 1);
                    imagePainter.setBrush(opt->palette.light().color());
                    imagePainter.setPen(opt->palette.light().color());
                    imagePainter.drawPolygon(a);
                    imagePainter.translate(-1, -1);
                    imagePainter.setBrush(opt->palette.mid().color());
                    imagePainter.setPen(opt->palette.mid().color());
                }

                imagePainter.drawPolygon(a);
                imagePainter.end();
                pixmap = QPixmap::fromImage(image);
                QPixmapCache::insert(pixmapName, pixmap);
            }
            int xOffset = r.x() + (r.width() - size)/2;
            int yOffset = r.y() + (r.height() - size)/2;
            p->drawPixmap(xOffset, yOffset, pixmap);
        }
        break;
    case PE_IndicatorCheckBox: {
        QBrush fill;
        if (opt->state & State_NoChange)
            fill = QBrush(opt->palette.base().color(), Qt::Dense4Pattern);
        else if (opt->state & State_Sunken)
            fill = opt->palette.button();
        else if (opt->state & State_Enabled)
            fill = opt->palette.base();
        else
            fill = opt->palette.background();
        p->save();
        doRestore = true;
        qDrawWinPanel(p, opt->rect, opt->palette, true, &fill);
        if (opt->state & State_NoChange)
            p->setPen(opt->palette.dark().color());
        else
            p->setPen(opt->palette.text().color());
        } // Fall through!
    case PE_IndicatorViewItemCheck:
    case PE_Q3CheckListIndicator:
        if (!doRestore) {
            p->save();
            doRestore = true;
        }
        if (pe == PE_Q3CheckListIndicator || pe == PE_IndicatorViewItemCheck) {
            const QStyleOptionViewItem *itemViewOpt = qstyleoption_cast<const QStyleOptionViewItem *>(opt);
            p->setPen(itemViewOpt
                      && itemViewOpt->showDecorationSelected
                      && opt->state & State_Selected
                        ? opt->palette.highlightedText().color()
                        : opt->palette.text().color());
            if (opt->state & State_NoChange)
                p->setBrush(opt->palette.brush(QPalette::Button));
            p->drawRect(opt->rect.x() + 1, opt->rect.y() + 1, 11, 11);
        }
        if (!(opt->state & State_Off)) {
            QLineF lines[7];
            int i, xx, yy;
            xx = opt->rect.x() + 3;
            yy = opt->rect.y() + 5;
            for (i = 0; i < 3; ++i) {
                lines[i] = QLineF(xx, yy, xx, yy + 2);
                ++xx;
                ++yy;
            }
            yy -= 2;
            for (i = 3; i < 7; ++i) {
                lines[i] = QLineF(xx, yy, xx, yy + 2);
                ++xx;
                --yy;
            }
            p->drawLines(lines, 7);
        }
        if (doRestore)
            p->restore();
        break;
    case PE_FrameFocusRect:
        if (const QStyleOptionFocusRect *fropt = qstyleoption_cast<const QStyleOptionFocusRect *>(opt)) {
            //### check for d->alt_down
            if (!(fropt->state & State_KeyboardFocusChange) && !styleHint(SH_UnderlineShortcut, opt))
                return;
            QRect r = opt->rect;
            p->save();
            p->setBackgroundMode(Qt::TransparentMode);
            QColor bg_col = fropt->backgroundColor;
            if (!bg_col.isValid())
                bg_col = p->background().color();
            // Create an "XOR" color.
            QColor patternCol((bg_col.red() ^ 0xff) & 0xff,
                              (bg_col.green() ^ 0xff) & 0xff,
                              (bg_col.blue() ^ 0xff) & 0xff);
            p->setBrush(QBrush(patternCol, Qt::Dense4Pattern));
            p->setBrushOrigin(r.topLeft());
            p->setPen(Qt::NoPen);
            p->drawRect(r.left(), r.top(), r.width(), 1);    // Top
            p->drawRect(r.left(), r.bottom(), r.width(), 1); // Bottom
            p->drawRect(r.left(), r.top(), 1, r.height());   // Left
            p->drawRect(r.right(), r.top(), 1, r.height());  // Right
            p->restore();
        }
        break;
    case PE_IndicatorRadioButton:
        {
#define PTSARRLEN(x) sizeof(x)/(sizeof(QPoint))
            static const QPoint pts1[] = {              // dark lines
                QPoint(1, 9), QPoint(1, 8), QPoint(0, 7), QPoint(0, 4), QPoint(1, 3), QPoint(1, 2),
                QPoint(2, 1), QPoint(3, 1), QPoint(4, 0), QPoint(7, 0), QPoint(8, 1), QPoint(9, 1)
            };
            static const QPoint pts2[] = {              // black lines
                QPoint(2, 8), QPoint(1, 7), QPoint(1, 4), QPoint(2, 3), QPoint(2, 2), QPoint(3, 2),
                QPoint(4, 1), QPoint(7, 1), QPoint(8, 2), QPoint(9, 2)
            };
            static const QPoint pts3[] = {              // background lines
                QPoint(2, 9), QPoint(3, 9), QPoint(4, 10), QPoint(7, 10), QPoint(8, 9), QPoint(9, 9),
                QPoint(9, 8), QPoint(10, 7), QPoint(10, 4), QPoint(9, 3)
            };
            static const QPoint pts4[] = {              // white lines
                QPoint(2, 10), QPoint(3, 10), QPoint(4, 11), QPoint(7, 11), QPoint(8, 10),
                QPoint(9, 10), QPoint(10, 9), QPoint(10, 8), QPoint(11, 7), QPoint(11, 4),
                QPoint(10, 3), QPoint(10, 2)
            };
            static const QPoint pts5[] = {              // inner fill
                QPoint(4, 2), QPoint(7, 2), QPoint(9, 4), QPoint(9, 7), QPoint(7, 9), QPoint(4, 9),
                QPoint(2, 7), QPoint(2, 4)
            };

            // make sure the indicator is square
            QRect ir = opt->rect;

            if (opt->rect.width() < opt->rect.height()) {
                ir.setTop(opt->rect.top() + (opt->rect.height() - opt->rect.width()) / 2);
                ir.setHeight(opt->rect.width());
            } else if (opt->rect.height() < opt->rect.width()) {
                ir.setLeft(opt->rect.left() + (opt->rect.width() - opt->rect.height()) / 2);
                ir.setWidth(opt->rect.height());
            }

            p->save();
            bool down = opt->state & State_Sunken;
            bool enabled = opt->state & State_Enabled;
            bool on = opt->state & State_On;
            QPolygon a;

            //center when rect is larger than indicator size
            int xOffset = 0;
            int yOffset = 0;
            int indicatorWidth = pixelMetric(PM_ExclusiveIndicatorWidth);
            int indicatorHeight = pixelMetric(PM_ExclusiveIndicatorWidth);
            if (ir.width() > indicatorWidth)
                xOffset += (ir.width() - indicatorWidth)/2;
            if (ir.height() > indicatorHeight)
                yOffset += (ir.height() - indicatorHeight)/2;
            p->translate(xOffset, yOffset);

            p->translate(ir.x(), ir.y());

            p->setPen(opt->palette.dark().color());
            p->drawPolyline(pts1, PTSARRLEN(pts1));

            p->setPen(opt->palette.shadow().color());
            p->drawPolyline(pts2, PTSARRLEN(pts2));

            p->setPen(opt->palette.midlight().color());
            p->drawPolyline(pts3, PTSARRLEN(pts3));

            p->setPen(opt->palette.light().color());
            p->drawPolyline(pts4, PTSARRLEN(pts4));