C++ KWPage::pageSide方法代码示例

KWPageSettingsDialog::KWPageSettingsDialog(QWidget *parent, KWDocument *document, const KWPage &page)
        : KoPageLayoutDialog(parent, page.pageStyle().pageLayout()),
        m_document(document),
        m_page(page)
{
    Q_ASSERT(document);
    showUnitchooser(true);
    Q_ASSERT(page.isValid());
    m_columns = new KWDocumentColumns(this, m_page.pageStyle().columns());
    addPage(m_columns, i18n("Columns"));
    m_headerFooter = new KWHeaderFooter(this, m_page.pageStyle());
    addPage(m_headerFooter, i18n("Header/Footer"));

    showPageSpread(true);
    showTextDirection(true); // TODO can we hide this in selected usecases? Use the resource manager bidi-check maybe?
    //showApplyToDocument(true); // TODO uncommand when we can handle it.

    bool simpleSetup = document->pageCount() == 1
            || (document->pageCount() == 2 && page.pageSide() == KWPage::PageSpread);
    if (!simpleSetup) { // if there is one style, its still a simple doc
        bool onlyOneStyle = true;
        foreach (const KWPage &p, document->pageManager()->pages()) {
            if (p.pageStyle() != m_page.pageStyle()) {
                onlyOneStyle = false;
                break;
            }
        }
        if (onlyOneStyle)
            simpleSetup = true;
    }

KWPageSettingsDialog::KWPageSettingsDialog(QWidget *parent, KWDocument *document, const KWPage &page)
        : KoPageLayoutDialog(parent, page.pageStyle().pageLayout()),
        m_document(document),
        m_page(page),
        m_pageStyle(page.pageStyle())
{
    Q_ASSERT(document);
    setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Apply | QDialogButtonBox::Cancel);
    connect(buttonBox(), SIGNAL(clicked(QAbstractButton*)),
            this, SLOT(slotButtonClicked(QAbstractButton*)));
    showUnitchooser(true);
    Q_ASSERT(page.isValid());

    m_columns = new KWDocumentColumns(this, m_page.pageStyle().columns());
    KPageWidgetItem *columnsPage = addPage(m_columns, i18n("Columns"));

    QWidget *pageStyleWidget = new QWidget(this);
    QHBoxLayout *pageStyleLayout = new QHBoxLayout(pageStyleWidget);
    pageStyleLayout->setMargin(0);
    KPageWidgetItem *stylePage = addPage(pageStyleWidget, i18n("Style"));
    m_pageStylesView = new QListWidget(this);
    pageStyleLayout->addWidget(m_pageStylesView, 1);
    connect(m_pageStylesView, SIGNAL(currentRowChanged(int)), this, SLOT(pageStyleCurrentRowChanged(int)));
    QVBoxLayout *pageStyleLayout2 = new QVBoxLayout();
    pageStyleLayout->addLayout(pageStyleLayout2);
    m_clonePageStyleButton = new QPushButton(i18n("Clone"), pageStyleWidget);
    connect(m_clonePageStyleButton, SIGNAL(clicked()), this, SLOT(pageStyleCloneClicked()));
    pageStyleLayout2->addWidget(m_clonePageStyleButton);
    m_deletePageStyleButton = new QPushButton(i18n("Delete"), pageStyleWidget);
    connect(m_deletePageStyleButton, SIGNAL(clicked()), this, SLOT(pageStyleDeleteClicked()));
    pageStyleLayout2->addWidget(m_deletePageStyleButton);
    pageStyleLayout2->addStretch();
    foreach(KPageWidgetItem *item, QList<KPageWidgetItem*>() << columnsPage << stylePage)
        m_pages[item->name()] = item;

    reloadPageStyles();

    showPageSpread(false); //TODO better would be allow n pages to face rather then only 2
    showTextDirection(true); // TODO can we hide this in selected usecases? Use the resource manager bidi-check maybe?
    //showApplyToDocument(true); // TODO uncommand when we can handle it.

#if 0
    bool simpleSetup = m_document->pageCount() == 1
            || (m_document->pageCount() == 2 && page.pageSide() == KWPage::PageSpread);
    if (!simpleSetup) { // if there is one style, its still a simple doc
        bool onlyOneStyle = true;
        foreach (const KWPage &p, m_document->pageManager()->pages()) {
            if (p.pageStyle() != m_page.pageStyle()) {
                onlyOneStyle = false;
                break;
            }
        }
        if (onlyOneStyle)
            simpleSetup = true;
    }

//.........这里部分代码省略.........
        // Some invariants
        const QRectF pageRect = page.rect();
        const qreal offsetY = m_pageTops[page.pageNumber() - pageOffset] - pageRect.top();

        bool pageIntersects = false;

        // 1. First handle the page itself.
        const QRectF zoomedPage = viewConverter->documentToView(pageRect);
        ViewMap vm;
        vm.page = page;
        //kDebug(32003) <<"page" << page.pageNumber();
        vm.distance = viewConverter->documentToView(QPointF(offsetX, offsetY));

        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(),
                                zoomedPage.width(), zoomedPage.height());
        QRectF intersection = targetPage.intersect(viewRect);
        if (! intersection.isEmpty()) {
            intersection.moveTopLeft(intersection.topLeft() - vm.distance);
            vm.clipRect = intersection.toRect();
            answer.append(vm);
            pageIntersects = true;
        }

        // 2. Then handle the annotation area if annotations are active.
        //
        //    The reason we don't do them together with the page
        //    itself is because the pages have a gap between them, but
        //    the annotation area should be unbroken.
        //
        // NOTE: 'annotation' below means the annotation area.
        //
        // FIXME: We should only do this if the annotation area is
        //        actually shown. How can we inside the KWViewMode
        //        know if annotations are active?
        if (1 /* annotations are shown */) {
            const QRectF annotationRect = pageRect.adjusted(page.width(), 0,
                                                            KWCanvasBase::AnnotationAreaWidth, GAP);
            const QRectF zoomedAnnotation = viewConverter->documentToView(annotationRect);
            ViewMap vm2;
            vm2.page = page;
            vm2.distance = viewConverter->documentToView(QPointF(offsetX, offsetY));

            const QRectF targetAnnotation(zoomedAnnotation.x() + vm2.distance.x(),
                                          zoomedAnnotation.y() + vm2.distance.y(),
                                          zoomedAnnotation.width(), zoomedAnnotation.height());
            intersection = targetAnnotation.intersect(viewRect);
            if (! intersection.isEmpty()) {
                intersection.moveTopLeft(intersection.topLeft() - vm2.distance);
                vm2.clipRect = intersection.toRect();
                answer.append(vm2);
                pageIntersects = true;
            }
        }

        // Record whether this page had an intersection with the view rect.
        if (pageIntersects) {
            emptyPages = 0;
        } else {
            ++emptyPages;
        }
        if (emptyPages > 2) // Since we show at max 2 pages side by side this is an easy rule
            break;

        if (m_pageSpreadMode) {
            if (page.pageSide() == KWPage::Left)
                offsetX = page.width() + GAP;
            else
                offsetX = 0.0;
        }
    }
#else
    KWPage page  = m_pageManager->begin();
    Q_ASSERT(page.isValid());
    qreal offsetX = 0.0;
    const int pageOffset = page.pageNumber();
    for(; page.isValid(); page = page.next()) {
        const QRectF pageRect = page.rect();
        const QRectF zoomedPage = viewConverter->documentToView(pageRect);
        ViewMap vm;
        vm.page = page;

        const qreal offsetY = m_pageTops[page.pageNumber() - pageOffset] - pageRect.top();
        vm.distance = viewConverter->documentToView(QPointF(offsetX, offsetY));
#if 0
        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(), zoomedPage.width() , zoomedPage.height());
        QRectF intersection = targetPage.intersect(viewRect);
        if (! intersection.isEmpty()) {
            intersection.moveTopLeft(intersection.topLeft() - vm.distance);
            vm.clipRect = intersection.toRect();
            answer.append(vm);
        }
#else
        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(), zoomedPage.width() , zoomedPage.height());
        vm.clipRect = targetPage.toRect();
        answer.append(vm);
#endif
    }
#endif
    return answer;
}

QList<KWViewMode::ViewMap> KWViewModeNormal::mapExposedRects(const QRectF &viewRect, KoViewConverter *viewConverter) const
{
    QList<ViewMap> answer;
    if (!viewConverter) return answer;

#if 1
    if (m_pageTops.isEmpty())
        return answer;
    KWPage page  = m_pageManager->begin();
    qreal offsetX = 0.0;
    const int pageOffset = page.pageNumber();

    int begin = 0;
    int end = m_pageTops.count() - 1;
    int index = 0;
    const qreal value = viewConverter->viewToDocument(viewRect.topLeft()).y();
    if (m_pageTops.value(end) <= value) { // check extremes. Only end is needed since begin is zero.
        begin = end;
        index = end;
    }
    while (end - begin > 1) { // binary search for page-index using our m_pageTops cache.
        index = begin + (end - begin) / 2;
        qreal diff = m_pageTops.value(index) - value;
        if (diff < 0)
            begin = index;
        else if (diff > 0)
            end = index;
        else
            break;
    }
    while (index > 1) { // 1 since we might hit a pagespread in the binary search, so start one page early
        page = page.next();
        --index;
    }

    int emptyPages = 0;
    for(; page.isValid(); page = page.next()) {
        Q_ASSERT_X(page.pageNumber()-pageOffset < m_pageTops.count(), __FUNCTION__,
                   QString("Pagemanager has more pages than viewmode (%1>%2 with pageOffset=%3 and pageNumber=%4 and pageCount=%5). Make sure you add pages via the document!")
                   .arg(page.pageNumber()-pageOffset).arg(m_pageTops.count()).arg(pageOffset).arg(page.pageNumber()).arg(m_pageManager->pageCount()).toLocal8Bit());

        const QRectF pageRect = page.rect();
        const QRectF zoomedPage = viewConverter->documentToView(pageRect);
        ViewMap vm;
        vm.page = page;
        //kDebug(32003) <<"page" << page.pageNumber();
        const qreal offsetY = m_pageTops[page.pageNumber() - pageOffset] - pageRect.top();
        vm.distance = viewConverter->documentToView(QPointF(offsetX, offsetY));

        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(),
                zoomedPage.width() , zoomedPage.height());
        QRectF intersection = targetPage.intersect(viewRect);
        if (! intersection.isEmpty()) {
            intersection.moveTopLeft(intersection.topLeft() - vm.distance);
            vm.clipRect = intersection.toRect();
            answer.append(vm);
            emptyPages = 0;
        } else {
            emptyPages++;
        }
        if (emptyPages > 2) // Since we show at max 2 pages side by side this is an easy rule
            break;
        if (m_pageSpreadMode) {
            if (page.pageSide() == KWPage::Left)
                offsetX = page.width() + GAP;
            else
                offsetX = 0.0;
        }
    }
#else
    KWPage page  = m_pageManager->begin();
    Q_ASSERT(page.isValid());
    qreal offsetX = 0.0;
    const int pageOffset = page.pageNumber();
    for(; page.isValid(); page = page.next()) {
        const QRectF pageRect = page.rect();
        const QRectF zoomedPage = viewConverter->documentToView(pageRect);
        ViewMap vm;
        vm.page = page;

        const qreal offsetY = m_pageTops[page.pageNumber() - pageOffset] - pageRect.top();
        vm.distance = viewConverter->documentToView(QPointF(offsetX, offsetY));
#if 0
        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(), zoomedPage.width() , zoomedPage.height());
        QRectF intersection = targetPage.intersect(viewRect);
        if (! intersection.isEmpty()) {
            intersection.moveTopLeft(intersection.topLeft() - vm.distance);
            vm.clipRect = intersection.toRect();
            answer.append(vm);
        }
#else
        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(), zoomedPage.width() , zoomedPage.height());
        vm.clipRect = targetPage.toRect();
        answer.append(vm);
#endif
    }
#endif
    return answer;
}

QList<KWViewMode::ViewMap> KWViewModeNormal::clipRectToDocument(const QRect &viewRect) const
{
    QList<ViewMap> answer;
    if (m_pageTops.isEmpty())
        return answer;
    KWPage page  = m_pageManager->begin();
    qreal offsetX = 0.0;
    const int pageOffset = page.pageNumber();

    int begin = 0;
    int end = m_pageTops.count() - 1;
    int index = 0;
    const qreal value = m_viewConverter->viewToDocument(viewRect.topLeft()).y();
    if (m_pageTops.value(end) <= value) { // check extremes. Only end is needed since begin is zero.
        begin = end;
        index = end;
    }
    while (end - begin > 1) { // binary search for page-index using our m_pageTops cache.
        index = begin + (end - begin) / 2;
        qreal diff = m_pageTops.value(index) - value;
        if (diff < 0)
            begin = index;
        else if (diff > 0)
            end = index;
        else
            break;
    }
    while (index > 1) { // 1 since we might hit a pagespread in the binary search, so start one page early
        page = page.next();
        --index;
        if (page.pageSide() == KWPage::PageSpread)
            --index;
    }

    int emptyPages = 0;
    while (page.isValid()) {
#ifndef NDEBUG
        if (page.pageNumber() - pageOffset >= m_pageTops.count()) {
            kWarning(32003) << "ERROR; pagemanager has more pages than viewmode ("
                << m_pageManager->pageCount() << ">" << m_pageTops.count()
                << "). Make sure you add pages via the document!";
            break;
        }
#endif
        const QRectF pageRect = page.rect();
        const QRectF zoomedPage = m_viewConverter->documentToView(pageRect);
        ViewMap vm;
        vm.page = page;
        //kDebug(32003) <<"page" << page.pageNumber();
        const qreal offsetY = m_pageTops[page.pageNumber() - pageOffset] - pageRect.top();
        vm.distance = m_viewConverter->documentToView(QPointF(offsetX, offsetY));

        const QRectF targetPage(zoomedPage.x() + vm.distance.x(), zoomedPage.y() + vm.distance.y(),
                zoomedPage.width() , zoomedPage.height());
        QRectF intersection = targetPage.intersect(viewRect);
        if (! intersection.isEmpty()) {
            intersection.moveTopLeft(intersection.topLeft() - vm.distance);
            vm.clipRect = intersection.toRect();
            answer.append(vm);
            emptyPages = 0;
        } else {
            emptyPages++;
        }
        if (emptyPages > 2) // Since we show at max 2 pages side by side this is an easy rule
            break;
        if (m_pageSpreadMode) {
            if (page.pageSide() == KWPage::Left)
                offsetX = page.width() + GAP;
            else
                offsetX = 0.0;
        }
        page = page.next();
    }

    return answer;
}