qmotifstyle.cpp

奇趣公司比较新的qt/emd版本

    case CE_MenuBarItem:
        if (opt->state & State_Selected)  // active item
            qDrawShadePanel(p, opt->rect, opt->palette, false, motifItemFrame,
                            &opt->palette.brush(QPalette::Button));
        else  // other item
            p->fillRect(opt->rect, opt->palette.brush(QPalette::Button));
        QCommonStyle::drawControl(element, opt, p, widget);
        break;

    case CE_HeaderSection:
        p->save();
        p->setBrushOrigin(opt->rect.topLeft());
        qDrawShadePanel(p, opt->rect, opt->palette, bool(opt->state & (State_Sunken|State_On)),
                        pixelMetric(PM_DefaultFrameWidth),
                        &opt->palette.brush((opt->state & State_Sunken) ? QPalette::Mid : QPalette::Button));
        p->restore();
        break;
    case CE_RubberBand: {
        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->restore();
        }
        break;
#ifndef QT_NO_PROGRESSBAR
    case CE_ProgressBarContents:
        if (const QStyleOptionProgressBar *pb = qstyleoption_cast<const QStyleOptionProgressBar *>(opt)) {
            QRect rect = pb->rect;
            bool vertical = false;
            bool inverted = false;

            // Get extra style options if version 2
            const QStyleOptionProgressBarV2 *pb2 = qstyleoption_cast<const QStyleOptionProgressBarV2 *>(opt);
            if (pb2) {
                vertical = (pb2->orientation == Qt::Vertical);
                inverted = pb2->invertedAppearance;
            }

            QTransform m;
            if (vertical) {
                rect = QRect(rect.left(), rect.top(), rect.height(), rect.width()); // flip width and height
                m.rotate(90);
                m.translate(0, -(rect.height() + rect.y()*2));
            }

            QPalette pal2 = pb->palette;
            // Correct the highlight color if it is the same as the background
            if (pal2.highlight() == pal2.background())
                pal2.setColor(QPalette::Highlight, pb->palette.color(QPalette::Active,
                                                                     QPalette::Highlight));
            bool reverse = ((!vertical && (pb->direction == Qt::RightToLeft)) || vertical);
            if (inverted)
                reverse = !reverse;
            int w = rect.width();
            if (pb->minimum == 0 && pb->maximum == 0) {
                QRect progressBar;
                Q_D(const QMotifStyle);
                 // draw busy indicator
                 int x = (d->animateStep*8)% (w * 2);
                 if (x > w)
                     x = 2 * w - x;
                 x = reverse ? rect.right() - x : x + rect.x();
                 p->setTransform(m);
                 p->setPen(QPen(pal2.highlight().color(), 4));
                 p->drawLine(x, rect.y(), x, rect.height());

            } else
                QCommonStyle::drawControl(element, opt, p, widget);
        }
        break;
#endif // QT_NO_PROGRESSBAR
    default:
        QCommonStyle::drawControl(element, opt, p, widget);
        break; }
}

static int get_combo_extra_width(int h, int w, int *return_awh=0)
{
    int awh,
        tmp;
    if (h < 8) {
        awh = 6;
    } else if (h < 14) {
        awh = h - 2;
    } else {
        awh = h/2;
    }
    tmp = (awh * 3) / 2;
    if (tmp > w / 2) {
        awh = w / 2 - 3;
        tmp = w / 2 + 3;
    }

    if (return_awh)
        *return_awh = awh;

    return tmp;
}

static void get_combo_parameters(const QRect &r,
                                 int &ew, int &awh, int &ax,
                                 int &ay, int &sh, int &dh,
                                 int &sy)
{
    ew = get_combo_extra_width(r.height(), r.width(), &awh);

    sh = (awh+3)/4;
    if (sh < 3)
        sh = 3;
    dh = sh/2 + 1;

    ay = r.y() + (r.height()-awh-sh-dh)/2;
    if (ay < 0) {
        //panic mode
        ay = 0;
        sy = r.height();
    } else {
        sy = ay+awh+dh;
    }
    ax = r.x() + r.width() - ew;
    ax  += (ew-awh)/2;
}

/*!
  \reimp
*/
void QMotifStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
                                     const QWidget *widget) const
{
    switch (cc) {
    case CC_ToolButton:
        if (const QStyleOptionToolButton *toolbutton
            = qstyleoption_cast<const QStyleOptionToolButton *>(opt)) {
            QRect button, menuarea;
            button = subControlRect(cc, toolbutton, SC_ToolButton, widget);
            menuarea = subControlRect(cc, toolbutton, SC_ToolButtonMenu, widget);

            State bflags = toolbutton->state;

            if (bflags & State_AutoRaise) {
                if (!(bflags & State_MouseOver)) {
                    bflags &= ~State_Raised;
                }
            }
            State mflags = bflags;

            if (toolbutton->activeSubControls & SC_ToolButton)
                bflags |= State_Sunken;
            if (toolbutton->activeSubControls & SC_ToolButtonMenu)
                mflags |= State_Sunken;

            QStyleOption tool(0);
            tool.palette = toolbutton->palette;
            if (toolbutton->subControls & SC_ToolButton) {
                if (bflags & (State_Sunken | State_On | State_Raised)) {
                    tool.rect = button;
                    tool.state = bflags;
                    drawPrimitive(PE_PanelButtonTool, &tool, p, widget);
                }
            }

            if (toolbutton->subControls & SC_ToolButtonMenu) {
                tool.rect = menuarea;
                tool.state = mflags;
                if (mflags & (State_Sunken | State_On | State_Raised))
                    drawPrimitive(PE_IndicatorButtonDropDown, &tool, p, widget);
                drawPrimitive(PE_IndicatorArrowDown, &tool, p, widget);
            }

            if ((toolbutton->state & State_HasFocus) && (!focus || !focus->isVisible())) {
                QStyleOptionFocusRect fr;
                fr.QStyleOption::operator=(*toolbutton);
                fr.rect = toolbutton->rect.adjusted(3, 3, -3, -3);
                drawPrimitive(PE_FrameFocusRect, &fr, p, widget);
            }
            QStyleOptionToolButton label = *toolbutton;
            int fw = pixelMetric(PM_DefaultFrameWidth, opt, widget);
            label.rect = button.adjusted(fw, fw, -fw, -fw);
            drawControl(CE_ToolButtonLabel, &label, p, widget);
        }
        break;
#ifndef QT_NO_SPINBOX
    case CC_SpinBox:
        if (const QStyleOptionSpinBox *spinbox = qstyleoption_cast<const QStyleOptionSpinBox *>(opt)) {
            QStyleOptionSpinBox copy = *spinbox;
            PrimitiveElement pe;

            if (spinbox->frame && (spinbox->subControls & SC_SpinBoxFrame)) {
                QRect r = subControlRect(CC_SpinBox, spinbox, SC_SpinBoxFrame, widget);
                qDrawShadePanel(p, r, opt->palette, false, pixelMetric(PM_SpinBoxFrameWidth));

                int fw = pixelMetric(QStyle::PM_DefaultFrameWidth);
                r = subControlRect(CC_SpinBox, spinbox, SC_SpinBoxEditField, widget).adjusted(-fw,-fw,fw,fw);
                QStyleOptionFrame lineOpt;
                lineOpt.QStyleOption::operator=(*opt);
                lineOpt.rect = r;
                lineOpt.lineWidth = fw;
                lineOpt.midLineWidth = 0;
                lineOpt.state |= QStyle::State_Sunken;
                drawPrimitive(QStyle::PE_FrameLineEdit, &lineOpt, p, widget);
            }

            if (spinbox->subControls & SC_SpinBoxUp) {
                copy.subControls = SC_SpinBoxUp;
                QPalette pal2 = spinbox->palette;
                if (!(spinbox->stepEnabled & QAbstractSpinBox::StepUpEnabled)) {
                    pal2.setCurrentColorGroup(QPalette::Disabled);
                    copy.state &= ~State_Enabled;
                }

                copy.palette = pal2;

                if (spinbox->activeSubControls == SC_SpinBoxUp && (spinbox->state & State_Sunken)) {
                    copy.state |= State_On;
                    copy.state |= State_Sunken;
                } else {
                    copy.state |= State_Raised;
                    copy.state &= ~State_Sunken;
                }
                pe = (spinbox->buttonSymbols == QAbstractSpinBox::PlusMinus ? PE_IndicatorSpinPlus
                      : PE_IndicatorSpinUp);

                copy.rect = subControlRect(CC_SpinBox, spinbox, SC_SpinBoxUp, widget);
                drawPrimitive(pe, &copy, p, widget);
            }

            if (spinbox->subControls & SC_SpinBoxDown) {
                copy.subControls = SC_SpinBoxDown;
                copy.state = spinbox->state;
                QPalette pal2 = spinbox->palette;
                if (!(spinbox->stepEnabled & QAbstractSpinBox::StepDownEnabled)) {
                    pal2.setCurrentColorGroup(QPalette::Disabled);
                    copy.state &= ~State_Enabled;
                }
                copy.palette = pal2;

                if (spinbox->activeSubControls == SC_SpinBoxDown && (spinbox->state & State_Sunken)) {
                    copy.state |= State_On;
                    copy.state |= State_Sunken;
                } else {
                    copy.state |= State_Raised;
                    copy.state &= ~State_Sunken;
                }
                pe = (spinbox->buttonSymbols == QAbstractSpinBox::PlusMinus ? PE_IndicatorSpinMinus
                      : PE_IndicatorSpinDown);

                copy.rect = subControlRect(CC_SpinBox, spinbox, SC_SpinBoxDown, widget);
                drawPrimitive(pe, &copy, p, widget);
            }
        }
        break;
#endif // QT_NO_SPINBOX
#ifndef QT_NO_SLIDER
    case CC_Slider:
        if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
            QRect groove = subControlRect(CC_Slider, opt, SC_SliderGroove, widget),
                  handle = subControlRect(CC_Slider, opt, SC_SliderHandle, widget);

            if ((opt->subControls & SC_SliderGroove) && groove.isValid()) {
                qDrawShadePanel(p, groove, opt->palette, true, pixelMetric(PM_DefaultFrameWidth),
                                &opt->palette.brush((opt->state & State_Enabled) ? QPalette::Mid : QPalette::Window));
                if ((opt->state & State_HasFocus) && (!focus || !focus->isVisible())) {
                    QStyleOption focusOpt = *opt;
                    focusOpt.rect = subElementRect(SE_SliderFocusRect, opt, widget);
                    drawPrimitive(PE_FrameFocusRect, &focusOpt, p, widget);
                }
            }

            if ((opt->subControls & SC_SliderHandle) && handle.isValid()) {
                QStyleOption bevelOpt = *opt;
                bevelOpt.state = (opt->state | State_Raised) & ~State_Sunken;
                bevelOpt.rect = handle;
                p->save();
                p->setBrushOrigin(bevelOpt.rect.topLeft());
                drawPrimitive(PE_PanelButtonBevel, &bevelOpt, p, widget);
                p->restore();

                if (slider->orientation == Qt::Horizontal) {
                    int mid = handle.x() + handle.width() / 2;
                    qDrawShadeLine(p, mid, handle.y(), mid, handle.y() + handle.height() - 2,
                                   opt->palette, true, 1);
                } else {
                    int mid = handle.y() + handle.height() / 2;
                    qDrawShadeLine(p, handle.x(), mid, handle.x() + handle.width() - 2, mid, opt->palette,
                                   true, 1);
                }
                if (!(opt->state & State_Enabled) && styleHint(SH_DitherDisabledText))
                    p->fillRect(handle, QBrush(p->background().color(), Qt::Dense5Pattern));
            }

            if (slider->subControls & SC_SliderTickmarks) {
                QStyleOptionSlider tmpSlider = *slider;
                tmpSlider.subControls = SC_SliderTickmarks;
                int frameWidth = pixelMetric(PM_DefaultFrameWidth);
                tmpSlider.rect.translate(frameWidth - 1, 0);
                QCommonStyle::drawComplexControl(cc, &tmpSlider, p, widget);
            }
        }
        break;
#endif // QT_NO_SLIDER
    case CC_ComboBox:
        if (const QStyleOptionComboBox *cb = qstyleoption_cast<const QStyleOptionComboBox *>(opt)) {
            if (opt->subControls & SC_ComboBoxArrow) {