qwindowsvistastyle.cpp

奇趣公司比较新的qt/emd版本

            }
            if (btn->features & QStyleOptionButton::HasMenu) {
                int mbiw = 0, mbih = 0;
                XPThemeData theme(widget, 0, QLatin1String("TOOLBAR"), TP_DROPDOWNBUTTON);
                if (theme.isValid()) {
                    SIZE size;
                    if (pGetThemePartSize(theme.handle(), 0, theme.partId, theme.stateId, 0, TS_TRUE, &size) == S_OK) {
                        mbiw = size.cx;
                        mbih = size.cy;
                    }
                }
                QRect ir = subElementRect(SE_PushButtonContents, option, 0);
                QStyleOptionButton newBtn = *btn;
                newBtn.rect = QStyle::visualRect(option->direction, option->rect,
                                                QRect(ir.right() - mbiw - 2, (option->rect.height()/2) - (mbih/2),
                                                      mbiw + 1, mbih + 1));
                drawPrimitive(PE_IndicatorArrowDown, &newBtn, painter, widget);
            }
            return;
        }
        break;

    case CE_ProgressBarContents:
        if (const QStyleOptionProgressBar *bar
                = qstyleoption_cast<const QStyleOptionProgressBar *>(option)) {
            int stateId = MBI_NORMAL;
            if (disabled)
                stateId = MBI_DISABLED;
            bool isIndeterminate = (bar->minimum == 0 && bar->maximum == 0);
            bool vertical = false;
            bool inverted = false;
            if (const QStyleOptionProgressBarV2 *pb2 = qstyleoption_cast<const QStyleOptionProgressBarV2 *>(option)) {
                vertical = (pb2->orientation == Qt::Vertical);
                inverted = pb2->invertedAppearance;
            }

            if (const QProgressBar *progressbar = qobject_cast<const QProgressBar *>(widget)) {
                if ((progressbar->value() > 0 || isIndeterminate) && d->transitionsEnabled()) {
                    if (!d->widgetAnimation(progressbar)) {
                        Animation *a = new Animation;
                        a->setWidget(const_cast<QWidget*>(widget));
                        a->setStartTime(QTime::currentTime());
                        d->startAnimation(a);
                    }
                } else {
                    d->stopAnimation(progressbar);
                }
            }

            XPThemeData theme(widget, painter, QLatin1String("PROGRESS"), vertical ? PP_FILLVERT : PP_FILL);
            theme.rect = option->rect;
            bool reverse = bar->direction == Qt::LeftToRight && inverted || bar->direction == Qt::RightToLeft && !inverted;
            QTime current = QTime::currentTime();

            if (isIndeterminate) {
                if (Animation *a = d->widgetAnimation(widget)) {
                    int glowSize = 120;
                    int animationWidth = glowSize * 2 + (vertical ? theme.rect.height() : theme.rect.width());
                    int animOffset = a->startTime().msecsTo(current) / 4;
                    if (animOffset > animationWidth)
                        a->setStartTime(QTime::currentTime());
                    painter->save();
                    painter->setClipRect(theme.rect);
                    QRect animRect;
                    QSize pixmapSize(14, 14);
                    if (vertical) {
                        animRect = QRect(theme.rect.left(),
                                         inverted ? rect.top() - glowSize + animOffset :
                                                    rect.bottom() + glowSize - animOffset,
                                         rect.width(), glowSize);
                         pixmapSize.setHeight(animRect.height());
                    } else {
                        animRect = QRect(reverse ? rect.right() + glowSize - animOffset:
                                                   rect.left() - glowSize + animOffset,
                                         rect.top(), glowSize, rect.height());
                        pixmapSize.setWidth(animRect.width());
                    }
                    QString name = QString::fromLatin1("qiprogress-%1-%2").arg(pixmapSize.width()).arg(pixmapSize.height());
                    QPixmap pixmap;
                    if (!QPixmapCache::find(name, pixmap)) {
                        QImage image(pixmapSize, QImage::Format_ARGB32);
                        image.fill(Qt::transparent);
                        QPainter imagePainter(&image);
                        theme.painter = &imagePainter;
                        theme.partId = vertical ? PP_FILLVERT : PP_FILL;
                        theme.rect = QRect(QPoint(0,0), theme.rect.size());
                        QLinearGradient alphaGradient(0, 0, vertical ? 0 : image.width(), 
                                                      vertical ? image.height() : 0);
                        alphaGradient.setColorAt(0, QColor(0, 0, 0, 0));
                        alphaGradient.setColorAt(0.5, QColor(0, 0, 0, 220));
                        alphaGradient.setColorAt(1, QColor(0, 0, 0, 0));
                        imagePainter.fillRect(image.rect(), alphaGradient);
                        imagePainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
                        d->drawBackground(theme);
                        imagePainter.end();
                        pixmap = QPixmap::fromImage(image);
                        QPixmapCache::insert(name, pixmap);
                    }
                    painter->drawPixmap(animRect, pixmap);
                    painter->restore();
                }
            }
            else {
                qint64 progress = qMax<qint64>(bar->progress, bar->minimum); // workaround for bug in QProgressBar

                if (vertical) {
                    int maxHeight = option->rect.height();
                    int minHeight = 0;
                    double vc6_workaround = ((progress - qint64(bar->minimum)) / double(qint64(bar->maximum) - qint64(bar->minimum))) * maxHeight;
                    int height = isIndeterminate ? maxHeight: qMax(int(vc6_workaround), minHeight);
                    theme.rect.setHeight(height);
                    if (!inverted)
                        theme.rect.moveTop(rect.height() - theme.rect.height());
                } else {
                    int maxWidth = option->rect.width();
                    int minWidth = 0;
                    double vc6_workaround = ((progress - qint64(bar->minimum)) / double(qint64(bar->maximum) - qint64(bar->minimum))) * maxWidth;
                    int width = isIndeterminate ? maxWidth : qMax(int(vc6_workaround), minWidth);
                    theme.rect.setWidth(width);
                    if (reverse) {
                        theme.rect = QStyle::visualRect(bar->direction, option->rect, theme.rect);
                        theme.rect.moveLeft(rect.width() - theme.rect.width());
                    }
                }
                d->drawBackground(theme);

                if (Animation *a = d->widgetAnimation(widget)) {
                    int glowSize = 140;
                    int animationWidth = glowSize * 2 + (vertical ? theme.rect.height() : theme.rect.width());
                    int animOffset = a->startTime().msecsTo(current) / 4;
                    theme.partId = vertical ? PP_MOVEOVERLAYVERT : PP_MOVEOVERLAY;
                    if (animOffset > animationWidth)
                        a->setStartTime(QTime::currentTime());
                    painter->save();
                    painter->setClipRect(theme.rect);
                    if (vertical) {
                        theme.rect = QRect(theme.rect.left(),
                                           inverted ? rect.top() - glowSize + animOffset :
                                                      rect.bottom() + glowSize - animOffset,
                                           rect.width(), glowSize);
                    } else {
                        theme.rect = QRect(reverse ? rect.right() + glowSize - animOffset:
                                                     rect.left() - glowSize + animOffset,
                                           rect.top(), glowSize, rect.height());
                    }
                    d->drawBackground(theme);
                    painter->restore();
                }
            }
        }
        break;
    case CE_MenuBarItem:
        {

        if (const QStyleOptionMenuItem *mbi = qstyleoption_cast<const QStyleOptionMenuItem *>(option))
        {
            if (mbi->menuItemType == QStyleOptionMenuItem::DefaultItem)
                break;

            QPalette::ColorRole textRole = disabled ? QPalette::Text : QPalette::ButtonText;
            QPixmap pix = mbi->icon.pixmap(pixelMetric(PM_SmallIconSize), QIcon::Normal);

            uint alignment = Qt::AlignCenter | Qt::TextShowMnemonic | Qt::TextDontClip | Qt::TextSingleLine;
            if (!styleHint(SH_UnderlineShortcut, mbi, widget))
                alignment |= Qt::TextHideMnemonic;

            //The rect adjustment is a workaround for the menu not really filling it's background.
            XPThemeData theme(widget, painter, QLatin1String("MENU"), MENU_BARBACKGROUND, 0, option->rect.adjusted(-1, 1 , 2, 1));
            d->drawBackground(theme);

            int stateId = MBI_NORMAL;
            if (disabled)
                stateId = MBI_DISABLED;
            else if (pressed)
                stateId = MBI_PUSHED;
            else if (selected)
                stateId = MBI_HOT;

            XPThemeData theme2(widget, painter, QLatin1String("MENU"), MENU_BARITEM, stateId, option->rect);
            d->drawBackground(theme2);

            if (!pix.isNull())
                drawItemPixmap(painter, mbi->rect, alignment, pix);
            else
                drawItemText(painter, mbi->rect, alignment, mbi->palette, mbi->state & State_Enabled, mbi->text, textRole);
        }
    }
    break;
#ifndef QT_NO_MENU
    case CE_MenuItem:
        if (const QStyleOptionMenuItem *menuitem = qstyleoption_cast<const QStyleOptionMenuItem *>(option)) {
            // windows always has a check column, regardless whether we have an icon or not
            int checkcol = qMax(menuitem->maxIconWidth, 28);
            QColor darkLine = option->palette.background().color().darker(108);
            QColor lightLine = option->palette.background().color().lighter(107);
            QRect rect = option->rect;
            QStyleOptionMenuItem mbiCopy = *menuitem;

            //draw vertical menu line
            QPoint p1 = QStyle::visualPos(option->direction, menuitem->rect, QPoint(checkcol, rect.top()));
            QPoint p2 = QStyle::visualPos(option->direction, menuitem->rect, QPoint(checkcol, rect.bottom()));
            QRect gutterRect(p1.x(), p1.y(), 3, p2.y() - p1.y() + 1);
            XPThemeData theme2(widget, painter, QLatin1String("MENU"), MENU_POPUPGUTTER, stateId, gutterRect);
            d->drawBackground(theme2);

            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;

            if (menuitem->menuItemType == QStyleOptionMenuItem::Separator) {
                int yoff = y-2 + h / 2;
                QPoint p1 = QPoint(x + checkcol, yoff);
                QPoint p2 = QPoint(x + w + 6 , yoff);
                int stateId = stateId = MBI_HOT;
                QRect subRect(p1.x(), p1.y(), p2.x() - p1.x(), 6);
                subRect  = QStyle::visualRect(option->direction, option->rect, subRect );
                XPThemeData theme2(widget, painter, QLatin1String("MENU"), MENU_POPUPSEPARATOR, stateId, subRect);
                d->drawBackground(theme2);
                return;
            }

            QRect vCheckRect = visualRect(option->direction, menuitem->rect, QRect(menuitem->rect.x(),
                                          menuitem->rect.y(), checkcol - 6, menuitem->rect.height()));

            if (act) {
                int stateId = stateId = MBI_HOT;
                XPThemeData theme2(widget, painter, QLatin1String("MENU"), MENU_POPUPITEM, stateId, option->rect);
                d->drawBackground(theme2);
            }

            if (checked) {
                XPThemeData theme(widget, painter, QLatin1String("MENU"), MENU_POPUPCHECKBACKGROUND,
                                  menuitem->icon.isNull() ? MBI_HOT : MBI_PUSHED, vCheckRect);
                d->drawBackground(theme);
                theme.partId = MENU_POPUPCHECK;
                bool bullet = menuitem->checkType & QStyleOptionMenuItem::Exclusive;
                if (dis)
                    theme.stateId = bullet ? MC_BULLETDISABLED: MC_CHECKMARKDISABLED;
                else
                    theme.stateId = bullet ? MC_BULLETNORMAL: MC_CHECKMARKNORMAL;
                d->drawBackground(theme);
            }

            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();
                QRect pmr(0, 0, pixw, pixh);
                pmr.moveCenter(vCheckRect.center());
                painter->setPen(menuitem->palette.text().color());
                painter->drawPixmap(pmr.topLeft(), pixmap);
            }

            painter->setPen(menuitem->palette.buttonText().color());

            QColor discol;
            if (dis) {
                discol = menuitem->palette.text().color();
                painter->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(option->direction, menuitem->rect, textRect);
            QString s = menuitem->text;
            if (!s.isEmpty()) {    // draw text
                painter->save();
                int t = s.indexOf(QLatin1Char('\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(option->direction, menuitem->rect,