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Diffstat (limited to 'src/gui/widgets/qprintpreviewwidget.cpp')
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diff --git a/src/gui/widgets/qprintpreviewwidget.cpp b/src/gui/widgets/qprintpreviewwidget.cpp deleted file mode 100644 index 47e67a46fe..0000000000 --- a/src/gui/widgets/qprintpreviewwidget.cpp +++ /dev/null @@ -1,844 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qprintpreviewwidget.h" -#include "private/qwidget_p.h" -#include <private/qprinter_p.h> - -#include <QtCore/qmath.h> -#include <QtGui/qboxlayout.h> -#include <QtGui/qgraphicsitem.h> -#include <QtGui/qgraphicsview.h> -#include <QtGui/qscrollbar.h> -#include <QtGui/qstyleoption.h> - -#ifndef QT_NO_PRINTPREVIEWWIDGET - -QT_BEGIN_NAMESPACE - -namespace { -class PageItem : public QGraphicsItem -{ -public: - PageItem(int _pageNum, const QPicture* _pagePicture, QSize _paperSize, QRect _pageRect) - : pageNum(_pageNum), pagePicture(_pagePicture), - paperSize(_paperSize), pageRect(_pageRect) - { - qreal border = qMax(paperSize.height(), paperSize.width()) / 25; - brect = QRectF(QPointF(-border, -border), - QSizeF(paperSize)+QSizeF(2*border, 2*border)); - setCacheMode(DeviceCoordinateCache); - } - - inline QRectF boundingRect() const - { return brect; } - - inline int pageNumber() const - { return pageNum; } - - void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget); - -private: - int pageNum; - const QPicture* pagePicture; - QSize paperSize; - QRect pageRect; - QRectF brect; -}; - -void PageItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) -{ - Q_UNUSED(widget); - -#if 0 - // Draw item bounding rect, for debugging - painter->save(); - painter->setPen(QPen(Qt::red, 0)); - painter->setBrush(Qt::NoBrush); - painter->drawRect(QRectF(-border()+1.0, -border()+1.0, boundingRect().width()-2, boundingRect().height()-2)); - painter->restore(); -#endif - - QRectF paperRect(0,0, paperSize.width(), paperSize.height()); - - // Draw shadow - painter->setClipRect(option->exposedRect); - qreal shWidth = paperRect.width()/100; - QRectF rshadow(paperRect.topRight() + QPointF(0, shWidth), - paperRect.bottomRight() + QPointF(shWidth, 0)); - QLinearGradient rgrad(rshadow.topLeft(), rshadow.topRight()); - rgrad.setColorAt(0.0, QColor(0,0,0,255)); - rgrad.setColorAt(1.0, QColor(0,0,0,0)); - painter->fillRect(rshadow, QBrush(rgrad)); - QRectF bshadow(paperRect.bottomLeft() + QPointF(shWidth, 0), - paperRect.bottomRight() + QPointF(0, shWidth)); - QLinearGradient bgrad(bshadow.topLeft(), bshadow.bottomLeft()); - bgrad.setColorAt(0.0, QColor(0,0,0,255)); - bgrad.setColorAt(1.0, QColor(0,0,0,0)); - painter->fillRect(bshadow, QBrush(bgrad)); - QRectF cshadow(paperRect.bottomRight(), - paperRect.bottomRight() + QPointF(shWidth, shWidth)); - QRadialGradient cgrad(cshadow.topLeft(), shWidth, cshadow.topLeft()); - cgrad.setColorAt(0.0, QColor(0,0,0,255)); - cgrad.setColorAt(1.0, QColor(0,0,0,0)); - painter->fillRect(cshadow, QBrush(cgrad)); - - painter->setClipRect(paperRect & option->exposedRect); - painter->fillRect(paperRect, Qt::white); - if (!pagePicture) - return; - painter->drawPicture(pageRect.topLeft(), *pagePicture); - - // Effect: make anything drawn in the margins look washed out. - QPainterPath path; - path.addRect(paperRect); - path.addRect(pageRect); - painter->setPen(QPen(Qt::NoPen)); - painter->setBrush(QColor(255, 255, 255, 180)); - painter->drawPath(path); - -#if 0 - // Draw frame around paper. - painter->setPen(QPen(Qt::black, 0)); - painter->setBrush(Qt::NoBrush); - painter->drawRect(paperRect); -#endif - - // todo: drawtext "Page N" below paper -} - -class GraphicsView : public QGraphicsView -{ - Q_OBJECT -public: - GraphicsView(QWidget* parent = 0) - : QGraphicsView(parent) - { -#ifdef Q_WS_MAC - setFrameStyle(QFrame::NoFrame); -#endif - } -signals: - void resized(); - -protected: - void resizeEvent(QResizeEvent* e) - { - QGraphicsView::resizeEvent(e); - emit resized(); - } - - void showEvent(QShowEvent* e) - { - QGraphicsView::showEvent(e); - emit resized(); - } -}; - -} // anonymous namespace - -class QPrintPreviewWidgetPrivate : public QWidgetPrivate -{ - Q_DECLARE_PUBLIC(QPrintPreviewWidget) -public: - QPrintPreviewWidgetPrivate() - : scene(0), curPage(1), - viewMode(QPrintPreviewWidget::SinglePageView), - zoomMode(QPrintPreviewWidget::FitInView), - zoomFactor(1), initialized(false), fitting(true) - {} - - // private slots - void _q_fit(bool doFitting = false); - void _q_updateCurrentPage(); - - void init(); - void populateScene(); - void layoutPages(); - void generatePreview(); - void setCurrentPage(int pageNumber); - void zoom(qreal zoom); - void setZoomFactor(qreal zoomFactor); - int calcCurrentPage(); - - GraphicsView *graphicsView; - QGraphicsScene *scene; - - int curPage; - QList<const QPicture *> pictures; - QList<QGraphicsItem *> pages; - - QPrintPreviewWidget::ViewMode viewMode; - QPrintPreviewWidget::ZoomMode zoomMode; - qreal zoomFactor; - bool ownPrinter; - QPrinter* printer; - bool initialized; - bool fitting; -}; - -void QPrintPreviewWidgetPrivate::_q_fit(bool doFitting) -{ - Q_Q(QPrintPreviewWidget); - - if (curPage < 1 || curPage > pages.count()) - return; - - if (!doFitting && !fitting) - return; - - if (doFitting && fitting) { - QRect viewRect = graphicsView->viewport()->rect(); - if (zoomMode == QPrintPreviewWidget::FitInView) { - QList<QGraphicsItem*> containedItems = graphicsView->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 == QPrintPreviewWidget::FacingPagesView) { - // fit two pages - if (curPage % 2) - target.setLeft(target.left() - target.width()); - else - target.setRight(target.right() + target.width()); - } else if (viewMode == QPrintPreviewWidget::AllPagesView) { - target = scene->itemsBoundingRect(); - } - - if (zoomMode == QPrintPreviewWidget::FitToWidth) { - QTransform t; - qreal scale = graphicsView->viewport()->width() / target.width(); - t.scale(scale, scale); - graphicsView->setTransform(t); - if (doFitting && fitting) { - QRectF viewSceneRect = graphicsView->viewportTransform().mapRect(graphicsView->viewport()->rect()); - viewSceneRect.moveTop(target.top()); - graphicsView->ensureVisible(viewSceneRect); // Nah... - } - } else { - graphicsView->fitInView(target, Qt::KeepAspectRatio); - if (zoomMode == QPrintPreviewWidget::FitInView) { - int step = qRound(graphicsView->matrix().mapRect(target).height()); - graphicsView->verticalScrollBar()->setSingleStep(step); - graphicsView->verticalScrollBar()->setPageStep(step); - } - } - - zoomFactor = graphicsView->transform().m11() * (float(printer->logicalDpiY()) / q->logicalDpiY()); - emit q->previewChanged(); -} - -void QPrintPreviewWidgetPrivate::_q_updateCurrentPage() -{ - Q_Q(QPrintPreviewWidget); - - if (viewMode == QPrintPreviewWidget::AllPagesView) - return; - - int newPage = calcCurrentPage(); - if (newPage != curPage) { - curPage = newPage; - emit q->previewChanged(); - } -} - -int QPrintPreviewWidgetPrivate::calcCurrentPage() -{ - int maxArea = 0; - int newPage = curPage; - QRect viewRect = graphicsView->viewport()->rect(); - QList<QGraphicsItem*> items = graphicsView->items(viewRect); - for (int i=0; i<items.size(); ++i) { - PageItem* pg = static_cast<PageItem*>(items.at(i)); - QRect overlap = graphicsView->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 QPrintPreviewWidgetPrivate::init() -{ - Q_Q(QPrintPreviewWidget); - - graphicsView = new GraphicsView; - graphicsView->setInteractive(false); - graphicsView->setDragMode(QGraphicsView::ScrollHandDrag); - graphicsView->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate); - QObject::connect(graphicsView->verticalScrollBar(), SIGNAL(valueChanged(int)), - q, SLOT(_q_updateCurrentPage())); - QObject::connect(graphicsView, SIGNAL(resized()), q, SLOT(_q_fit())); - - scene = new QGraphicsScene(graphicsView); - scene->setBackgroundBrush(Qt::gray); - graphicsView->setScene(scene); - - QVBoxLayout *layout = new QVBoxLayout; - q->setLayout(layout); - layout->setContentsMargins(0, 0, 0, 0); - layout->addWidget(graphicsView); -} - -void QPrintPreviewWidgetPrivate::populateScene() -{ - // remove old pages - for (int i = 0; i < pages.size(); i++) - scene->removeItem(pages.at(i)); - qDeleteAll(pages); - pages.clear(); - - int numPages = pictures.count(); - QSize paperSize = printer->paperRect().size(); - QRect pageRect = printer->pageRect(); - - for (int i = 0; i < numPages; i++) { - PageItem* item = new PageItem(i+1, pictures.at(i), paperSize, pageRect); - scene->addItem(item); - pages.append(item); - } -} - -void QPrintPreviewWidgetPrivate::layoutPages() -{ - int numPages = pages.count(); - if (numPages < 1) - return; - - int numPagePlaces = numPages; - int cols = 1; // singleMode and default - if (viewMode == QPrintPreviewWidget::AllPagesView) { - if (printer->orientation() == QPrinter::Portrait) - cols = qCeil(qSqrt((float) numPages)); - else - cols = qFloor(qSqrt((float) numPages)); - cols += cols % 2; // Nicer with an even number of cols - } - else if (viewMode == QPrintPreviewWidget::FacingPagesView) { - cols = 2; - numPagePlaces += 1; - } - int rows = qCeil(qreal(numPagePlaces) / cols); - - qreal itemWidth = pages.at(0)->boundingRect().width(); - qreal itemHeight = pages.at(0)->boundingRect().height(); - int pageNum = 1; - for (int i = 0; i < rows && pageNum <= numPages; i++) { - for (int j = 0; j < cols && pageNum <= numPages; j++) { - if (!i && !j && viewMode == QPrintPreviewWidget::FacingPagesView) { - // Front page doesn't have a facing page - continue; - } else { - pages.at(pageNum-1)->setPos(QPointF(j*itemWidth, i*itemHeight)); - pageNum++; - } - } - } - scene->setSceneRect(scene->itemsBoundingRect()); -} - -void QPrintPreviewWidgetPrivate::generatePreview() -{ - //### If QPrinter::setPreviewMode() becomes public, handle the - //### case that we have been constructed with a printer that - //### _already_ has been preview-painted to, so we should - //### initially just show the pages it already contains, and not - //### emit paintRequested() until the user changes some parameter - - Q_Q(QPrintPreviewWidget); - printer->d_func()->setPreviewMode(true); - emit q->paintRequested(printer); - printer->d_func()->setPreviewMode(false); - pictures = printer->d_func()->previewPages(); - populateScene(); // i.e. setPreviewPrintedPictures() e.l. - layoutPages(); - curPage = qBound(1, curPage, pages.count()); - if (fitting) - _q_fit(); - emit q->previewChanged(); -} - -void QPrintPreviewWidgetPrivate::setCurrentPage(int pageNumber) -{ - if (pageNumber < 1 || pageNumber > pages.count()) - return; - - int lastPage = curPage; - curPage = pageNumber; - - if (lastPage != curPage && lastPage > 0 && lastPage <= pages.count()) { - if (zoomMode != QPrintPreviewWidget::FitInView) { - QScrollBar *hsc = graphicsView->horizontalScrollBar(); - QScrollBar *vsc = graphicsView->verticalScrollBar(); - QPointF pt = graphicsView->transform().map(pages.at(curPage-1)->pos()); - vsc->setValue(int(pt.y()) - 10); - hsc->setValue(int(pt.x()) - 10); - } else { - graphicsView->centerOn(pages.at(curPage-1)); - } - } -} - -void QPrintPreviewWidgetPrivate::zoom(qreal zoom) -{ - zoomFactor *= zoom; - graphicsView->scale(zoom, zoom); -} - -void QPrintPreviewWidgetPrivate::setZoomFactor(qreal _zoomFactor) -{ - Q_Q(QPrintPreviewWidget); - zoomFactor = _zoomFactor; - graphicsView->resetTransform(); - int dpi_y = q->logicalDpiY(); - int printer_dpi_y = printer->logicalDpiY(); - graphicsView->scale(zoomFactor*(dpi_y/float(printer_dpi_y)), - zoomFactor*(dpi_y/float(printer_dpi_y))); -} - -/////////////////////////////////////// - -/*! - \class QPrintPreviewWidget - \since 4.4 - - \brief The QPrintPreviewWidget class provides a widget for - previewing page layouts for printer output. - - \ingroup printing - - QPrintPreviewDialog uses a QPrintPreviewWidget internally, and the - purpose of QPrintPreviewWidget is to make it possible to embed the - preview into other widgets. It also makes it possible to build a different - user interface around it than the default one provided with QPrintPreviewDialog. - - Using QPrintPreviewWidget is straightforward: - - \list 1 - \o Create the QPrintPreviewWidget - - Construct the QPrintPreviewWidget either by passing in an - existing QPrinter object, or have QPrintPreviewWidget create a - default constructed QPrinter object for you. - - \o Connect the paintRequested() signal to a slot. - - When the widget needs to generate a set of preview pages, a - paintRequested() signal will be emitted from the widget. Connect a - slot to this signal, and draw onto the QPrinter passed in as a - signal parameter. Call QPrinter::newPage(), to start a new - page in the preview. - - \endlist - - \sa QPrinter, QPrintDialog, QPageSetupDialog, QPrintPreviewDialog -*/ - - -/*! - \enum QPrintPreviewWidget::ViewMode - - This enum is used to describe the view mode of the preview widget. - - \value SinglePageView A mode where single pages in the preview - is viewed. - - \value FacingPagesView A mode where the facing pages in the preview - is viewed. - - \value AllPagesView A view mode where all the pages in the preview - is viewed. -*/ - -/*! - \enum QPrintPreviewWidget::ZoomMode - - This enum is used to describe zoom mode of the preview widget. - - \value CustomZoom The zoom is set to a custom zoom value. - - \value FitToWidth This mode fits the current page to the width of the view. - - \value FitInView This mode fits the current page inside the view. - -*/ - -/*! - Constructs a QPrintPreviewWidget based on \a printer and with \a - parent as the parent widget. The widget flags \a flags are passed on - to the QWidget constructor. - - \sa QWidget::setWindowFlags() -*/ -QPrintPreviewWidget::QPrintPreviewWidget(QPrinter *printer, QWidget *parent, Qt::WindowFlags flags) - : QWidget(*new QPrintPreviewWidgetPrivate, parent, flags) -{ - Q_D(QPrintPreviewWidget); - d->printer = printer; - d->ownPrinter = false; - d->init(); -} - -/*! - \overload - - This will cause QPrintPreviewWidget to create an internal, default - constructed QPrinter object, which will be used to generate the - preview. -*/ -QPrintPreviewWidget::QPrintPreviewWidget(QWidget *parent, Qt::WindowFlags flags) - : QWidget(*new QPrintPreviewWidgetPrivate, parent, flags) -{ - Q_D(QPrintPreviewWidget); - d->printer = new QPrinter; - d->ownPrinter = true; - d->init(); -} - - -/*! - Destroys the QPrintPreviewWidget. -*/ -QPrintPreviewWidget::~QPrintPreviewWidget() -{ - Q_D(QPrintPreviewWidget); - if (d->ownPrinter) - delete d->printer; -} - -/*! - Returns the current view mode. The default view mode is SinglePageView. -*/ -QPrintPreviewWidget::ViewMode QPrintPreviewWidget::viewMode() const -{ - Q_D(const QPrintPreviewWidget); - return d->viewMode; -} - -/*! - Sets the view mode to \a mode. The default view mode is - SinglePageView. -*/ -void QPrintPreviewWidget::setViewMode(ViewMode mode) -{ - Q_D(QPrintPreviewWidget); - d->viewMode = mode; - d->layoutPages(); - if (d->viewMode == AllPagesView) { - d->graphicsView->fitInView(d->scene->itemsBoundingRect(), Qt::KeepAspectRatio); - d->fitting = false; - d->zoomMode = QPrintPreviewWidget::CustomZoom; - d->zoomFactor = d->graphicsView->transform().m11() * (float(d->printer->logicalDpiY()) / logicalDpiY()); - emit previewChanged(); - } else { - d->fitting = true; - d->_q_fit(); - } -} - -/*! - Returns the current orientation of the preview. This value is - obtained from the QPrinter object associated with the preview. -*/ -QPrinter::Orientation QPrintPreviewWidget::orientation() const -{ - Q_D(const QPrintPreviewWidget); - return d->printer->orientation(); -} - -/*! - Sets the current orientation to \a orientation. This value will be - set on the QPrinter object associated with the preview. -*/ -void QPrintPreviewWidget::setOrientation(QPrinter::Orientation orientation) -{ - Q_D(QPrintPreviewWidget); - d->printer->setOrientation(orientation); - d->generatePreview(); -} - -/*! - Prints the preview to the printer associated with the preview. -*/ -void QPrintPreviewWidget::print() -{ - Q_D(QPrintPreviewWidget); - // ### make use of the generated pages - emit paintRequested(d->printer); -} - -/*! - Zooms the current view in by \a factor. The default value for \a - factor is 1.1, which means the view will be scaled up by 10%. -*/ -void QPrintPreviewWidget::zoomIn(qreal factor) -{ - Q_D(QPrintPreviewWidget); - d->fitting = false; - d->zoomMode = QPrintPreviewWidget::CustomZoom; - d->zoom(factor); -} - -/*! - Zooms the current view out by \a factor. The default value for \a - factor is 1.1, which means the view will be scaled down by 10%. -*/ -void QPrintPreviewWidget::zoomOut(qreal factor) -{ - Q_D(QPrintPreviewWidget); - d->fitting = false; - d->zoomMode = QPrintPreviewWidget::CustomZoom; - d->zoom(1/factor); -} - -/*! - Returns the zoom factor of the view. -*/ -qreal QPrintPreviewWidget::zoomFactor() const -{ - Q_D(const QPrintPreviewWidget); - return d->zoomFactor; -} - -/*! - Sets the zoom factor of the view to \a factor. For example, a - value of 1.0 indicates an unscaled view, which is approximately - the size the view will have on paper. A value of 0.5 will halve - the size of the view, while a value of 2.0 will double the size of - the view. -*/ -void QPrintPreviewWidget::setZoomFactor(qreal factor) -{ - Q_D(QPrintPreviewWidget); - d->fitting = false; - d->zoomMode = QPrintPreviewWidget::CustomZoom; - d->setZoomFactor(factor); -} - -/*! - \obsolete - Returns the number of pages in the preview. - \sa pageCount() -*/ -int QPrintPreviewWidget::numPages() const -{ - Q_D(const QPrintPreviewWidget); - return d->pages.size(); -} - -/*! - \since 4.6 - Returns the number of pages in the preview. -*/ -int QPrintPreviewWidget::pageCount() const -{ - Q_D(const QPrintPreviewWidget); - return d->pages.size(); -} - -/*! - Returns the currently viewed page in the preview. -*/ -int QPrintPreviewWidget::currentPage() const -{ - Q_D(const QPrintPreviewWidget); - return d->curPage; -} - -/*! - Sets the current page in the preview. This will cause the view to - skip to the beginning of \a page. -*/ -void QPrintPreviewWidget::setCurrentPage(int page) -{ - Q_D(QPrintPreviewWidget); - d->setCurrentPage(page); -} - -/*! - This is a convenience function and is the same as calling \c - {setZoomMode(QPrintPreviewWidget::FitToWidth)}. -*/ -void QPrintPreviewWidget::fitToWidth() -{ - setZoomMode(FitToWidth); -} - -/*! - This is a convenience function and is the same as calling \c - {setZoomMode(QPrintPreviewWidget::FitInView)}. -*/ -void QPrintPreviewWidget::fitInView() -{ - setZoomMode(FitInView); -} - -/*! - Sets the zoom mode to \a zoomMode. The default zoom mode is FitInView. - - \sa zoomMode(), viewMode(), setViewMode() -*/ -void QPrintPreviewWidget::setZoomMode(QPrintPreviewWidget::ZoomMode zoomMode) -{ - Q_D(QPrintPreviewWidget); - d->zoomMode = zoomMode; - if (d->zoomMode == FitInView || d->zoomMode == FitToWidth) { - d->fitting = true; - d->_q_fit(true); - } else { - d->fitting = false; - } -} - -/*! - Returns the current zoom mode. - - \sa setZoomMode(), viewMode(), setViewMode() -*/ -QPrintPreviewWidget::ZoomMode QPrintPreviewWidget::zoomMode() const -{ - Q_D(const QPrintPreviewWidget); - return d->zoomMode; -} - -/*! - This is a convenience function and is the same as calling \c - {setOrientation(QPrinter::Landscape)}. -*/ -void QPrintPreviewWidget::setLandscapeOrientation() -{ - setOrientation(QPrinter::Landscape); -} - -/*! - This is a convenience function and is the same as calling \c - {setOrientation(QPrinter::Portrait)}. -*/ -void QPrintPreviewWidget::setPortraitOrientation() -{ - setOrientation(QPrinter::Portrait); -} - -/*! - This is a convenience function and is the same as calling \c - {setViewMode(QPrintPreviewWidget::SinglePageView)}. -*/ -void QPrintPreviewWidget::setSinglePageViewMode() -{ - setViewMode(SinglePageView); -} - -/*! - This is a convenience function and is the same as calling \c - {setViewMode(QPrintPreviewWidget::FacingPagesView)}. -*/ -void QPrintPreviewWidget::setFacingPagesViewMode() -{ - setViewMode(FacingPagesView); -} - -/*! - This is a convenience function and is the same as calling \c - {setViewMode(QPrintPreviewWidget::AllPagesView)}. -*/ -void QPrintPreviewWidget::setAllPagesViewMode() -{ - setViewMode(AllPagesView); -} - - -/*! - This function updates the preview, which causes the - paintRequested() signal to be emitted. -*/ -void QPrintPreviewWidget::updatePreview() -{ - Q_D(QPrintPreviewWidget); - d->initialized = true; - d->generatePreview(); - d->graphicsView->updateGeometry(); -} - -/*! \reimp -*/ -void QPrintPreviewWidget::setVisible(bool visible) -{ - Q_D(QPrintPreviewWidget); - if (visible && !d->initialized) - updatePreview(); - QWidget::setVisible(visible); -} - -/*! - \fn void QPrintPreviewWidget::paintRequested(QPrinter *printer) - - This signal is emitted when the preview widget needs to generate a - set of preview pages. \a printer is the printer associated with - this preview widget. -*/ - -/*! - \fn void QPrintPreviewWidget::previewChanged() - - This signal is emitted whenever the preview widget has changed - some internal state, such as the orientation. -*/ - - -QT_END_NAMESPACE - -#include "moc_qprintpreviewwidget.cpp" -#include "qprintpreviewwidget.moc" - -#endif // QT_NO_PRINTPREVIEWWIDGET |