diff options
Diffstat (limited to 'src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp')
| -rw-r--r-- | src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp b/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp deleted file mode 100644 index abb4ac17..00000000 --- a/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp +++ /dev/null @@ -1,466 +0,0 @@ -#include "PrintWidget.h" -#include <QGraphicsProxyWidget> -#include <QPushButton> -#include <QtConcurrent> - -PrintWidget::PrintWidget(Renderer *backend, QWidget *parent) - : QGraphicsView(parent), scene(0), curPage(1), viewMode(SinglePageView), - zoomMode(FitInView), zoomFactor(1), initialized(false), fitting(true), - BACKEND(backend) { - - this->setMouseTracking(true); - QList<QWidget *> children = - this->findChildren<QWidget *>("", Qt::FindChildrenRecursively); - for (int i = 0; i < children.length(); i++) { - children[i]->setContextMenuPolicy(Qt::CustomContextMenu); - QObject::connect(children[i], - SIGNAL(customContextMenuRequested(const QPoint &)), this, - SIGNAL(customContextMenuRequested(const QPoint &))); - } - this->setInteractive(false); - this->setDragMode(QGraphicsView::ScrollHandDrag); - this->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate); - this->setFocusPolicy(Qt::NoFocus); - QObject::connect(this->verticalScrollBar(), SIGNAL(valueChanged(int)), this, - SLOT(updateCurrentPage())); - QObject::connect(this, SIGNAL(resized()), this, SLOT(fit())); - - scene = new QGraphicsScene(this); - scene->setBackgroundBrush(Qt::gray); - this->setScene(scene); - - /*QVBoxLayout *layout = new QVBoxLayout; - setLayout(layout); - layout->setContentsMargins(0, 0, 0, 0); - layout->addWidget(this);*/ -} - -PrintWidget::~PrintWidget() { - for (int i = 0; i < pages.size(); i++) { - scene->removeItem(pages.at(i)); - } - qDeleteAll(pages); - pages.clear(); - scene->deleteLater(); -} - -// Public Slots - -void PrintWidget::fitView() { - setZoomMode(FitInView); - setCurrentPage(curPage); // Make sure we stay on the same page - //generatePreview(); -} - -void PrintWidget::fitToWidth() { - setZoomMode(FitToWidth); - setCurrentPage(curPage); // Make sure we stay on the same page - // generatePreview(); -} - -void PrintWidget::setZoomMode(ZoomMode mode) { - zoomMode = mode; - fitting = true; - fit(true); - generatePreview(); -} - -void PrintWidget::setAllPagesViewMode() { setViewMode(AllPagesView); } - -void PrintWidget::setSinglePageViewMode() { setViewMode(SinglePageView); } - -void PrintWidget::setFacingPagesViewMode() { setViewMode(FacingPagesView); } - -void PrintWidget::setViewMode(ViewMode mode) { - viewMode = mode; - layoutPages(); - if (viewMode == AllPagesView) { - this->fitInView(scene->itemsBoundingRect(), Qt::KeepAspectRatio); - fitting = false; - zoomMode = CustomZoom; - zoomFactor = this->transform().m11() * (150.0 / logicalDpiY()); - } else { - fitting = true; - fit(); - } - generatePreview(); -} - -void PrintWidget::zoomIn(double factor) { - fitting = false; - zoomMode = CustomZoom; - zoomFactor *= factor; - this->scale(factor, factor); -} - -void PrintWidget::zoomOut(double factor) { - fitting = false; - zoomMode = CustomZoom; - zoomFactor *= factor; - this->scale(1 / factor, 1 / factor); -} - -void PrintWidget::updatePreview() { - initialized = true; - generatePreview(); - this->updateGeometry(); -} - -void PrintWidget::setVisible(bool visible) { - if (visible and !initialized) - updatePreview(); - QGraphicsView::setVisible(visible); -} - -void PrintWidget::setCurrentPage(int pageNumber) { - - int lastPage = curPage; - //We need to allow one additional page after the last page here for presentation mode. - // This allows a "blank" page at the end of a presentation before actually closing down the presentation; - curPage = std::max(1, std::min(pageNumber, BACKEND->numPages()+1)); - - /*if (lastPage != curPage && lastPage > 0 && lastPage <= pages.count()) { - if (zoomMode != FitInView) { - QScrollBar *hsc = this->horizontalScrollBar(); - QScrollBar *vsc = this->verticalScrollBar(); - QPointF pt = this->transform().map(pages.at(curPage - 1)->pos()); - vsc->setValue(int(pt.y()) - 10); - hsc->setValue(int(pt.x()) - 10); - } else { - this->centerOn(pages.at(curPage - 1)); - } - }*/ - - QSize DPI(300, 300); - if (lastPage != curPage || !BACKEND->imageSize(curPage).isNull()){ - updatePreview(); - for(int i=(curPage-3); i<=BACKEND->numPages(); i++){ - if(i<0){ continue; } - else if( i < (curPage-2) ){ BACKEND->clearHash(i); } - else if( i > (curPage+2) ){ BACKEND->clearHash(i); } - else{ - if (BACKEND->loadMultiThread()) { - QtConcurrent::run(BACKEND, &Renderer::renderPage, i, DPI, degrees); - } else { - BACKEND->renderPage(i, DPI, degrees); - } - } - } - } - //qDebug() << "Current page set to " << pageNumber << "\n"; -} - -void PrintWidget::highlightText(TextData *text) { - // Creates a rectangle around the text if the text has not already been - // highlighted qDebug() << "Page:" << text->page() << "Loc:" << text->loc(); - if (!text->highlighted() && !text->loc().isNull()) { - int degrees = BACKEND->rotatedDegrees(); - // qDebug() << "Degrees:" << degrees; - // Shows the text's location on a non-rotated page - QRectF rect = text->loc(); - // Rotates the rectangle by the page's center and gets the right calculation - // for text's new location - if (degrees != 0) { - QSize center = BACKEND->imageSize(text->page() - 1) / 2; - - if (degrees == 90 or degrees == 270) - center.transpose(); - - double cx = center.width(), cy = center.height(); - rect.adjust(-cx, -cy, -cx, -cy); - QMatrix matrix; - matrix.rotate(BACKEND->rotatedDegrees()); - rect = matrix.mapRect(rect); - if (BACKEND->rotatedDegrees() == 180) - rect.adjust(cx, cy, cx, cy); - else - rect.adjust(cy, cx, cy, cx); - } - - // qDebug() << "Post Degrees:" << rect; - // Moves the rectangle onto the right page - double pageHeight = 0; - for (int i = 0; i < text->page() - 1; i++) - pageHeight += pages.at(i)->boundingRect().height(); - - // qDebug() << "PageHeight:" << pageHeight; - - rect.moveTop(rect.y() + pageHeight); - - // qDebug() << "Final Rect:" << rect; - // Transparent yellow for the highlight box - QBrush highlightFill(QColor(255, 255, 177, 100)); - QPen highlightOutline(QColor(255, 255, 100, 125)); - scene->addRect(rect, highlightOutline, highlightFill); - text->highlighted(true); - } - goToPosition(text->page(), text->loc().x(), text->loc().y()); -} - -// Private functions - -void PrintWidget::generatePreview() { - populateScene(); // i.e. setPreviewPrintedPictures() e.l. - layoutPages(); - // curPage = qBound(1, curPage, pages.count()); - publicPageNum = curPage; - emit currentPageChanged(); - if (fitting) { - fit(); - } -} - -void PrintWidget::layoutPages() { - int numPages = pages.count(); - if (numPages < 1) - return; - - int numPagePlaces = numPages; - int cols = 1; // singleMode and default - QSize pageSize = BACKEND->imageSize(curPage); - if (viewMode == AllPagesView) { - cols = pageSize.width() > pageSize.height() ? qFloor(qSqrt(numPages)) - : qCeil(qSqrt(numPages)); - cols += cols % 2; // Nicer with an even number of cols - } else if (viewMode == FacingPagesView) { - cols = 2; - numPagePlaces += 1; - } - int rows = qCeil(double(numPagePlaces) / cols); - - int pageNum = 0; - QList<double> rowMaxList; - for (int i = 0; i < rows && pageNum < numPages; i++) { - double rowMax = 0; - for (int j = 0; j < cols && pageNum < numPages; j++) { - double itemWidth = 0, itemHeight = 0; - double pageHeight = pages.at(pageNum)->boundingRect().height(); - - for (int k = cols * (pageNum / cols); k < pageNum; k++) - itemWidth += pages.at(k)->boundingRect().width(); - - foreach (double size, rowMaxList) - itemHeight += size; - - pages.at(pageNum)->setPos(QPointF(itemWidth, itemHeight)); - pageNum++; - rowMax = qMax(rowMax, pageHeight); - } - rowMaxList.push_back(rowMax); - } - scene->setSceneRect(scene->itemsBoundingRect()); - // qDebug() << "Finished Page Layout"; -} - -void PrintWidget::populateScene() { - // qDeleteAll(scene->items().begin(), scene->items().end()); - scene->clear(); - // qDeleteAll(pages.begin(), pages.end()); - pages.clear(); - links.clear(); - annots.clear(); - // int numPages = BACKEND->numPages(); - if (!BACKEND->isDoneLoading(curPage)) { - //qDebug() << "populateScene() called while backend still loading.\n"; - return; - } // nothing to show yet - int start = curPage; - int end = start; - if( viewMode == FacingPagesView){ end += 1; } - else if( viewMode == AllPagesView ) { start = 1; end = BACKEND->numPages(); } - //single-page view otherwise - //qDebug() << "Populate Scene" << start << end; - for (int i = start; i < end + 1; i++) { - QImage pagePicture = BACKEND->imageHash(i); - QSize paperSize = pagePicture.size(); - QList<QGraphicsItem *> linkLocations; - QList<QGraphicsItem *> annotLocations; - - if (pagePicture.isNull()) { - //qDebug() << "NULL IMAGE ON PAGE " << i; - continue; - } - - PageItem *item = new PageItem(i + 1, pagePicture, paperSize, BACKEND); - scene->addItem(item); - pages.append(item); - - if (BACKEND->supportsExtraFeatures()) { - for (int k = 0; k < BACKEND->linkSize(i); k++) { - LinkItem *lItem = new LinkItem(item, BACKEND->linkList(i, k)); - lItem->setOpacity(0.1); - linkLocations.append(lItem); - } - // qDebug() << "Creating annotations for:" << i; - for (int k = 0; k < BACKEND->annotSize(i); k++) { - Annotation *annot = BACKEND->annotList(i, k); - if (annot->getType() == 14) { - InkItem *iItem = new InkItem(item, annot); - annotLocations.append(iItem); - } - PopupItem *aItem = new PopupItem(item, annot); - AnnotZone *aZone = new AnnotZone(item, annot, aItem); - aItem->setVisible(false); - annotLocations.append(aItem); - annotLocations.append(aZone); - } - - for (int k = 0; k < BACKEND->widgetSize(i); k++) { - Widget *widget = BACKEND->widgetList(i, k); - int type = widget->getWidgetType(); - QRectF loc = widget->getLocation(); - QString text = widget->getCurrentText(); - switch (type) { - case 0: { - QPushButton *button = new QPushButton(widget->getCurrentText()); - button->setGeometry(loc.toRect()); - button->setText(text); - QGraphicsProxyWidget *proxy = new QGraphicsProxyWidget(item); - proxy->setWidget(button); - } break; - case 1: { - - } break; - case 2: { - - } break; - case 3: { - - } break; - case 4: { - - } break; - case 5: { - - } break; - case 6: { - - } break; - default: { qDebug() << "INVALID WIDGET"; } - } - } - links.insert(i, linkLocations); - annots.insert(i, annotLocations); - } - } -} - -// Private Slots -void PrintWidget::updateCurrentPage() { - if (viewMode == AllPagesView) - return; - - int newPage = calcCurrentPage(); - if (newPage != curPage) { - curPage = newPage; - publicPageNum = curPage; - emit currentPageChanged(); - } -} - -int PrintWidget::calcCurrentPage() { - int maxArea = 0; - - return curPage; - - int newPage = curPage; - QRect viewRect = this->viewport()->rect(); - QList<QGraphicsItem *> items = this->items(viewRect); - for (int i = 0; i < items.size(); ++i) { - PageItem *pg = static_cast<PageItem *>(items.at(i)); - QRect overlap = - this->mapFromScene(pg->sceneBoundingRect()).boundingRect() & viewRect; - int area = overlap.width() * overlap.height(); - if (area > maxArea) { - maxArea = area; - newPage = pg->pageNumber(); - } else if (area == maxArea && pg->pageNumber() < newPage) { - newPage = pg->pageNumber(); - } - } - return newPage; -} - -void PrintWidget::fit(bool doFitting) { - if (curPage < 1 || curPage > pages.count()) - return; - if (!doFitting && !fitting) - return; - - if (doFitting && fitting) { - QRect viewRect = this->viewport()->rect(); - if (zoomMode == FitInView) { - QList<QGraphicsItem *> containedItems = - this->items(viewRect, Qt::ContainsItemBoundingRect); - foreach (QGraphicsItem *item, containedItems) { - PageItem *pg = static_cast<PageItem *>(item); - if (pg->pageNumber() == curPage) - return; - } - } - - int newPage = calcCurrentPage(); - if (newPage != curPage) - curPage = newPage; - } - - QRectF target = pages.at(curPage - 1)->sceneBoundingRect(); - if (viewMode == FacingPagesView) { - if (curPage % 2) - target.setLeft(target.left() - target.width()); - else - target.setRight(target.right() + target.width()); - } else if (viewMode == AllPagesView) { - target = scene->itemsBoundingRect(); - } - - if (zoomMode == FitToWidth) { - QTransform t; - qreal scale = this->viewport()->width() / target.width(); - t.scale(scale, scale); - this->setTransform(t); - if (doFitting && fitting) { - QRectF viewSceneRect = - this->viewportTransform().mapRect(this->viewport()->rect()); - viewSceneRect.moveTop(target.top()); - this->ensureVisible(viewSceneRect); // Nah... - } - } else { - this->fitInView(target, Qt::KeepAspectRatio); - if (zoomMode == FitInView) { - int step = qRound(this->matrix().mapRect(target).height()); - this->verticalScrollBar()->setSingleStep(step); - this->verticalScrollBar()->setPageStep(step); - } - } - - zoomFactor = this->transform().m11() * (150.0 / this->logicalDpiY()); -} - -void PrintWidget::goToPosition(int pagenum, float x, float y) { - // qDebug() << "Page:" << pagenum << "X:" << x << "Y:" << y; - setCurrentPage(pagenum); - - QScrollBar *hsc = this->horizontalScrollBar(); - QScrollBar *vsc = this->verticalScrollBar(); - QPointF pt = this->transform().map(pages.at(pagenum - 1)->pos()); - int secondPagenum = pagenum < pages.size() ? pagenum : pagenum - 2; - QPointF pt2 = this->transform().map(pages.at(secondPagenum)->pos()); - double realHeight = pages.at(pagenum - 1)->boundingRect().height(); - double virtualHeight = qAbs(pt2.y() - pt.y()); - - // qDebug() << "Real:" << realHeight << "Virtual:" << virtualHeight; - - int yConv = int(pt.y() + y * (virtualHeight / realHeight)) - 30; - int xConv = int(pt.x() + x * (virtualHeight / realHeight)) - 30; - - // qDebug() << "newX:" << xConv << "newY:" << yConv; - - if (yConv > vsc->maximum()) - vsc->triggerAction(QAbstractSlider::SliderToMaximum); - else if (y != 0) - vsc->setValue(yConv); - - if (x != 0) - hsc->setValue(xConv); -} |