C++ Doc::GetEvenSpacing方法代码示例

void Page::LayOutHorizontally()
{
    Doc *doc = dynamic_cast<Doc *>(GetParent());
    assert(doc);

    // Doc::SetDrawingPage should have been called before
    // Make sure we have the correct page
    assert(this == doc->GetDrawingPage());

    // Reset the horizontal alignment
    Functor resetHorizontalAlignment(&Object::ResetHorizontalAlignment);
    this->Process(&resetHorizontalAlignment, NULL);

    // Reset the vertical alignment
    Functor resetVerticalAlignment(&Object::ResetVerticalAlignment);
    this->Process(&resetVerticalAlignment, NULL);

    // Align the content of the page using measure aligners
    // After this:
    // - each LayerElement object will have its Alignment pointer initialized
    Functor alignHorizontally(&Object::AlignHorizontally);
    Functor alignHorizontallyEnd(&Object::AlignHorizontallyEnd);
    AlignHorizontallyParams alignHorizontallyParams(&alignHorizontally);
    this->Process(&alignHorizontally, &alignHorizontallyParams, &alignHorizontallyEnd);

    // Align the content of the page using system aligners
    // After this:
    // - each Staff object will then have its StaffAlignment pointer initialized
    Functor alignVertically(&Object::AlignVertically);
    Functor alignVerticallyEnd(&Object::AlignVerticallyEnd);
    AlignVerticallyParams alignVerticallyParams(doc, &alignVerticallyEnd);
    this->Process(&alignVertically, &alignVerticallyParams, &alignVerticallyEnd);

    // Unless duration-based spacing is disabled, set the X position of each Alignment.
    // Does non-linear spacing based on the duration space between two Alignment objects.
    if (!doc->GetEvenSpacing()) {
        int longestActualDur = DUR_4;
        // Get the longest duration in the piece
        AttDurExtreme durExtremeComparison(LONGEST);
        Object *longestDur = this->FindChildExtremeByAttComparison(&durExtremeComparison);
        if (longestDur) {
            DurationInterface *interface = longestDur->GetDurationInterface();
            assert(interface);
            longestActualDur = interface->GetActualDur();
            // LogDebug("Longest duration is DUR_* code %d", longestActualDur);
        }

        Functor setAlignmentX(&Object::SetAlignmentXPos);
        SetAlignmentXPosParams setAlignmentXPosParams(doc, &setAlignmentX);
        setAlignmentXPosParams.m_longestActualDur = longestActualDur;
        this->Process(&setAlignmentX, &setAlignmentXPosParams);
    }

    // Set the pitch / pos alignement
    SetAlignmentPitchPosParams setAlignmentPitchPosParams(doc);
    Functor setAlignmentPitchPos(&Object::SetAlignmentPitchPos);
    this->Process(&setAlignmentPitchPos, &setAlignmentPitchPosParams);

    CalcStemParams calcStemParams(doc);
    Functor calcStem(&Object::CalcStem);
    this->Process(&calcStem, &calcStemParams);

    FunctorDocParams calcChordNoteHeadsParams(doc);
    Functor calcChordNoteHeads(&Object::CalcChordNoteHeads);
    this->Process(&calcChordNoteHeads, &calcChordNoteHeadsParams);

    CalcDotsParams calcDotsParams(doc);
    Functor calcDots(&Object::CalcDots);
    this->Process(&calcDots, &calcDotsParams);

    // Render it for filling the bounding box
    View view;
    view.SetDoc(doc);
    BBoxDeviceContext bBoxDC(&view, 0, 0, BBOX_HORIZONTAL_ONLY);
    // Do not do the layout in this view - otherwise we will loop...
    view.SetPage(this->GetIdx(), false);
    view.DrawCurrentPage(&bBoxDC, false);

    // Adjust the x position of the LayerElement where multiple layer collide
    // Look at each LayerElement and change the m_xShift if the bounding box is overlapping
    Functor adjustLayers(&Object::AdjustLayers);
    AdjustLayersParams adjustLayersParams(doc, &adjustLayers, doc->m_scoreDef.GetStaffNs());
    this->Process(&adjustLayers, &adjustLayersParams);

    // Adjust the X position of the accidentals, including in chords
    Functor adjustAccidX(&Object::AdjustAccidX);
    AdjustAccidXParams adjustAccidXParams(doc, &adjustAccidX);
    this->Process(&adjustAccidX, &adjustAccidXParams);

    // Adjust the X shift of the Alignment looking at the bounding boxes
    // Look at each LayerElement and change the m_xShift if the bounding box is overlapping
    Functor adjustXPos(&Object::AdjustXPos);
    Functor adjustXPosEnd(&Object::AdjustXPosEnd);
    AdjustXPosParams adjustXPosParams(doc, &adjustXPos, &adjustXPosEnd, doc->m_scoreDef.GetStaffNs());
    this->Process(&adjustXPos, &adjustXPosParams, &adjustXPosEnd);

    // Adjust the X shift of the Alignment looking at the bounding boxes
    // Look at each LayerElement and change the m_xShift if the bounding box is overlapping
    Functor adjustGraceXPos(&Object::AdjustGraceXPos);
    Functor adjustGraceXPosEnd(&Object::AdjustGraceXPosEnd);
//.........这里部分代码省略.........