qwindowsstyle.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

            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;
            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));

            QColor fillColor = (down || !enabled)
                               ? opt->palette.button().color()
                               : opt->palette.base().color();
            p->setPen(fillColor);
            p->setBrush(fillColor) ;
            p->drawPolygon(pts5, PTSARRLEN(pts5));

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

            if (on) {
                p->setPen(Qt::NoPen);
                p->setBrush(opt->palette.text());
                p->drawRect(ir.x() + 5, ir.y() + 4, 2, 4);
                p->drawRect(ir.x() + 4, ir.y() + 5, 4, 2);
            }
            p->restore();
            break;
        }
#ifndef QT_NO_FRAME
    case PE_Frame:
    case PE_FrameMenu:
        if (const QStyleOptionFrame *frame = qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            if (frame->lineWidth == 2 || pe == PE_Frame) {
                QPalette popupPal = frame->palette;
                if (pe == PE_FrameMenu) {
                    popupPal.setColor(QPalette::Light, frame->palette.background().color());
                    popupPal.setColor(QPalette::Midlight, frame->palette.light().color());
                }
                if (use2000style && pe == PE_Frame && (frame->state & State_Raised))
                    qDrawWinButton(p, frame->rect, popupPal, frame->state & State_Sunken);
                else
                    qDrawWinPanel(p, frame->rect, popupPal, frame->state & State_Sunken);
            } else {
                QCommonStyle::drawPrimitive(pe, opt, p, w);
            }
        }
        break;
#endif // QT_NO_FRAME
    case PE_IndicatorBranch: {
        // This is _way_ too similar to the common style.
        static const int decoration_size = 9;
        int mid_h = opt->rect.x() + opt->rect.width() / 2;
        int mid_v = opt->rect.y() + opt->rect.height() / 2;
        int bef_h = mid_h;
        int bef_v = mid_v;
        int aft_h = mid_h;
        int aft_v = mid_v;
        if (opt->state & State_Children) {
            int delta = decoration_size / 2;
            bef_h -= delta;
            bef_v -= delta;
            aft_h += delta;
            aft_v += delta;
            p->drawLine(bef_h + 2, bef_v + 4, bef_h + 6, bef_v + 4);
            if (!(opt->state & State_Open))
                p->drawLine(bef_h + 4, bef_v + 2, bef_h + 4, bef_v + 6);
            QPen oldPen = p->pen();
            p->setPen(opt->palette.dark().color());
            p->drawRect(bef_h, bef_v, decoration_size - 1, decoration_size - 1);
            p->setPen(oldPen);
        }
        QBrush brush(opt->palette.dark().color(), Qt::Dense4Pattern);
        if (opt->state & State_Item) {
            if (opt->direction == Qt::RightToLeft)
                p->fillRect(opt->rect.left(), mid_v, bef_h - opt->rect.left(), 1, brush);
            else
                p->fillRect(aft_h, mid_v, opt->rect.right() - aft_h + 1, 1, brush);
        }
        if (opt->state & State_Sibling)
            p->fillRect(mid_h, aft_v, 1, opt->rect.bottom() - aft_v + 1, brush);
        if (opt->state & (State_Open | State_Children | State_Item | State_Sibling))
            p->fillRect(mid_h, opt->rect.y(), 1, bef_v - opt->rect.y(), brush);
        break; }
    case PE_FrameButtonBevel:
    case PE_PanelButtonBevel: {
        QBrush fill;
        bool panel = pe != PE_FrameButtonBevel;
        p->setBrushOrigin(opt->rect.topLeft());
        if (!(opt->state & State_Sunken) && (opt->state & State_On))
            fill = QBrush(opt->palette.light().color(), Qt::Dense4Pattern);
        else
            fill = opt->palette.brush(QPalette::Button);

        if (opt->state & (State_Raised | State_On | State_Sunken)) {
            qDrawWinButton(p, opt->rect, opt->palette, opt->state & (State_Sunken | State_On),
                           panel ? &fill : 0);
        } else {
            if (panel)
                p->fillRect(opt->rect, fill);
            else
                p->drawRect(opt->rect);
        }
        break; }
    case PE_FrameWindow: {
         QPalette popupPal = opt->palette;
         popupPal.setColor(QPalette::Light, opt->palette.background().color());
         popupPal.setColor(QPalette::Midlight, opt->palette.light().color());
         qDrawWinPanel(p, opt->rect, popupPal, opt->state & State_Sunken);
        break; }
#ifndef QT_NO_DOCKWIDGET
    case PE_IndicatorDockWidgetResizeHandle: {
        QPen oldPen = p->pen();
        p->setPen(opt->palette.light().color());
        if (opt->state & State_Horizontal) {
            p->drawLine(opt->rect.left(),          opt->rect.top(),
                        opt->rect.right(), opt->rect.top());
            p->setPen(opt->palette.dark().color());
            p->drawLine(opt->rect.left(),          opt->rect.bottom() - 1,
                        opt->rect.right(), opt->rect.bottom() - 1);
            p->setPen(opt->palette.shadow().color());
            p->drawLine(opt->rect.left(),          opt->rect.bottom(),
                        opt->rect.right(), opt->rect.bottom());
        } else {
            p->drawLine(opt->rect.left(), opt->rect.top(),
                        opt->rect.left(), opt->rect.bottom());
            p->setPen(opt->palette.dark().color());
            p->drawLine(opt->rect.right() - 1, opt->rect.top(),
                        opt->rect.right() - 1, opt->rect.bottom());
            p->setPen(opt->palette.shadow().color());
            p->drawLine(opt->rect.right(), opt->rect.top(),
                        opt->rect.right(), opt->rect.bottom());
        }
        p->setPen(oldPen);
        break; }
case PE_FrameDockWidget:
        if (qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            drawPrimitive(QStyle::PE_FrameWindow, opt, p, w);
        }
    break;
#endif // QT_NO_DOCKWIDGET

    case PE_FrameTabWidget:
        if (use2000style) {
            QRect rect = opt->rect;
            QPalette pal = opt->palette;
            qDrawWinButton(p, opt->rect, opt->palette, false, 0);
            break;
       }
    default:
        QCommonStyle::drawPrimitive(pe, opt, p, w);
    }
}

/*! \reimp */
void QWindowsStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter *p,
                                const QWidget *widget) const
{
    switch (ce) {
#ifndef QT_NO_RUBBERBAND
    case CE_RubberBand:
        if (qstyleoption_cast<const QStyleOptionRubberBand *>(opt)) {
            // ### workaround for slow general painter path
            QPixmap tiledPixmap(16, 16);
            QPainter pixmapPainter(&tiledPixmap);
            pixmapPainter.setPen(Qt::NoPen);
            pixmapPainter.setBrush(Qt::Dense4Pattern);
            pixmapPainter.setBackground(Qt::white);
            pixmapPainter.setBackgroundMode(Qt::OpaqueMode);
            pixmapPainter.drawRect(0, 0, tiledPixmap.width(), tiledPixmap.height());
            pixmapPainter.end();
            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->restore();
            return;
        }
        break;
#endif // QT_NO_RUBBERBAND

#if !defined(QT_NO_MENU) && !defined(QT_NO_MAINWINDOW)
    case CE_MenuBarEmptyArea:
        if (widget && qobject_cast<const QMainWindow *>(widget->parentWidget())) {
            QPen oldPen = p->pen();
            p->setPen(QPen(opt->palette.dark().color()));
            p->drawLine(opt->rect.bottomLeft(), opt->rect.bottomRight());
        }
        break;
#endif
#ifndef QT_NO_MENU
    case CE_MenuItem:
        if (const QStyleOptionMenuItem *menuitem = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            int x, y, w, h;
            menuitem->rect.getRect(&x, &y, &w, &h);
            int tab = menuitem->tabWidth;
            bool dis = !(menuitem->state & State_Enabled);
            bool checked = menuitem->checkType != QStyleOptionMenuItem::NotCheckable
                            ? menuitem->checked : false;
            bool act = menuitem->state & State_Selected;

            // windows always has a check column, regardless whether we have an icon or not
            int checkcol = qMax(menuitem->maxIconWidth, use2000style ? 20 : windowsCheckMarkWidth);


            QBrush fill = menuitem->palette.brush(act ? QPalette::Highlight : QPalette::Button);
            p->fillRect(menuitem->rect, fill);

            if (menuitem->menuItemType == QStyleOptionMenuItem::Separator){
                int yoff = y-1 + h / 2;
                p->setPen(menuitem->palette.dark().color());
                p->drawLine(x, yoff, x + w, yoff);
                p->setPen(menuitem->palette.light().color());
                p->drawLine(x, yoff + 1, x + w, yoff + 1);
                return;
            }

            QRect vCheckRect = visualRect(opt->direction, menuitem->rect, QRect(menuitem->rect.x(), menuitem->rect.y(), checkcol, menuitem->rect.height()));
            if (checked) {
                if (act && !dis) {
                    qDrawShadePanel(p, vCheckRect,
                                    menuitem->palette, true, 1,
                                    &menuitem->palette.brush(QPalette::Button));
                } else {
                    QBrush fill(menuitem->palette.light().color(), Qt::Dense4Pattern);
                    qDrawShadePanel(p, vCheckRect, menuitem->palette, true, 1, &fill);
                }
            } else if (!act) {
                p->fillRect(vCheckRect, menuitem->palette.brush(QPalette::Button));
            }

            // On Windows Style, if we have a checkable item and an icon we
            // draw the icon recessed to indicate an item is checked. If we
            // have no icon, we draw a checkmark instead.
            if (!menuitem->icon.isNull()) {
                QIcon::Mode mode = dis ? QIcon::Disabled : QIcon::Normal;
                if (act && !dis)
                    mode = QIcon::Active;
                QPixmap pixmap;
                if (checked)
                    pixmap = menuitem->icon.pixmap(pixelMetric(PM_SmallIconSize), mode, QIcon::On);
                else
                    pixmap = menuitem->icon.pixmap(pixelMetric(PM_SmallIconSize), mode);
                int pixw = pixmap.width();
                int pixh = pixmap.height();
                if (act && !dis && !checked)
                    qDrawShadePanel(p, vCheckRect,  menuitem->palette, false, 1,
                                    &menuitem->palette.brush(QPalette::Button));
                QRect pmr(0, 0, pixw, pixh);
                pmr.moveCenter(vCheckRect.center());
                p->setPen(menuitem->palette.text().color());
                p->drawPixmap(pmr.topLeft(), pixmap);
            } else if (checked) {
                QStyleOptionMenuItem newMi = *menuitem;
                newMi.state = State_None;
                if (!dis)
                    newMi.state |= State_Enabled;
                if (act)
                    newMi.state |= State_On;
                newMi.rect = visualRect(opt->direction, menuitem->rect, QRect(menuitem->rect.x() + windowsItemFrame, menuitem->rect.y() + windowsItemFrame,
                                                                              checkcol - 2 * windowsItemFrame, menuitem->rect.height() - 2*windowsItemFrame));
                drawPrimitive(PE_IndicatorMenuCheckMark, &newMi, p, widget);
            }
            p->setPen(act ? menuitem->palette.highlightedText().color() : menuitem->palette.buttonText().color());

            QColor discol;
            if (dis) {
                discol = menuitem->palette.text().color();
                p->setPen(discol);
            }

            int xm = windowsItemFrame + checkcol + windowsItemHMargin;
            int xpos = menuitem->rect.x() + xm;
            QRect textRect(xpos, y + windowsItemVMargin, w - xm - windowsRightBorder - tab + 1, h - 2 * windowsItemVMargin);
            QRect vTextRect = visualRect(opt->direction, menuitem->rect, textRect);
            QString s = menuitem->text;
            if (!s.isEmpty()) {                     // draw text
                p->save();
                int t = s.indexOf('\t');
                int text_flags = Qt::AlignVCenter | Qt::TextShowMnemonic | Qt::TextDontClip | Qt::TextSingleLine;
                if (!styleHint(SH_UnderlineShortcut, menuitem, widget))
                    text_flags |= Qt::TextHideMnemonic;
                text_flags |= Qt::AlignLeft;
                if (t >= 0) {
                    QRect vShortcutRect = visualRect(opt->direction, menuitem->rect, QRect(textRect.topRight(), menuitem->rect.bottomRight()));
                    if (dis && !act) {
                        p->setPen(menuitem->palette.light().color());
                        p->drawText(vShortcutRect.adjusted(1,1,1,1), text_flags, s.mid(t + 1));
                        p->setPen(discol);
                    }
                    p->drawText(vShortcutRect, text_flags, s.mid(t + 1));
                    s = s.left(t);
                }
                QFont font = menuitem->font;
                if (menuitem->menuItemType == QStyleOptionMenuItem::DefaultItem)
                    font.setBold(true);
                p->setFont(font);
                if (dis && !act) {
                    p->setPen(menuitem->palette.light().color());
                    p->drawText(vTextRect.adjusted(1,1,1,1), text_flags, s.left(t));
                    p->setPen(discol);
                }
                p->drawText(vTextRect, text_flags, s.left(t));
                p->restore();
            }
            if (menuitem->menuItemType == QStyleOptionMenuItem::SubMenu) {// draw sub menu arrow
                int dim = (h - 2 * windowsItemFrame) / 2;
                PrimitiveElement arrow;
                arrow = (opt->direction == Qt::RightToLeft) ? PE_IndicatorArrowLeft : PE_IndicatorArrowRight;
                xpos = x + w - windowsArrowHMargin - windowsItemFrame - dim;
                QRect  vSubMenuRect = visualRect(opt->direction, menuitem->rect, QRect(xpos, y + h / 2 - dim / 2, dim, dim));
                QStyleOptionMenuItem newMI = *menuitem;
                newMI.rect = vSubMenuRect;
                newMI.state = dis ? State_None : State_Enabled;
                if (act)
                    newMI.palette.setColor(QPalette::ButtonText,
                                           newMI.palette.highlightedText().color());
                drawPrimitive(arrow, &newMI, p, widget);
            }

        }
        break;
#endif // QT_NO_MENU
#ifndef QT_NO_MENUBAR
    case CE_MenuBarItem:
        if (const QStyleOptionMenuItem *mbi = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            bool active = mbi->state & State_Selected;
            bool hasFocus = mbi->state & State_HasFocus;
            bool down = mbi->state & State_Sunken;
            QStyleOptionMenuItem newMbi = *mbi;
            p->fillRect(mbi->rect, mbi->palette.brush(QPalette::Button));
            if (active || hasFocus) {
                QBrush b = mbi->palette.brush(QPalette::Button);
                if (active && down)
                    p->setBrushOrigin(p->brushOrigin() + QPoint(1, 1));
                if (active && hasFocus)
                    qDrawShadeRect(p, mbi->rect.x(), mbi->rect.y(), mbi->rect.width(),
                                   mbi->rect.height(), mbi->palette, active && down, 1, 0, &b);
                if (active && down) {
                    newMbi.rect.translate(pixelMetric(PM_ButtonShiftHorizontal, mbi, widget),
                                       pixelMetric(PM_ButtonShiftVertical, mbi, widget));
                    p->setBrushOrigin(p->brushOrigin() - QPoint(1, 1));
                }
            }
            QCommonStyle::drawControl(ce, &newMbi, p, widget);
        }
        break;
#endif // QT_NO_M