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Diffstat (limited to 'src/printsupport/kernel/qpaintengine_preview.cpp')
| -rw-r--r-- | src/printsupport/kernel/qpaintengine_preview.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/printsupport/kernel/qpaintengine_preview.cpp b/src/printsupport/kernel/qpaintengine_preview.cpp new file mode 100644 index 0000000000..3cf06f5770 --- /dev/null +++ b/src/printsupport/kernel/qpaintengine_preview.cpp @@ -0,0 +1,223 @@ +/**************************************************************************** +** +** 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 <private/qpaintengine_preview_p.h> +#include <private/qpainter_p.h> +#include <private/qpaintengine_p.h> +#include <private/qpicture_p.h> + +#include <QtPrintSupport/qprintengine.h> +#include <QtGui/qpainter.h> +#include <QtGui/qpicture.h> + +#ifndef QT_NO_PRINTPREVIEWWIDGET +QT_BEGIN_NAMESPACE + +class QPreviewPaintEnginePrivate : public QPaintEnginePrivate +{ + Q_DECLARE_PUBLIC(QPreviewPaintEngine) +public: + QPreviewPaintEnginePrivate() : state(QPrinter::Idle) {} + ~QPreviewPaintEnginePrivate() {} + + QList<const QPicture *> pages; + QPaintEngine *engine; + QPainter *painter; + QPrinter::PrinterState state; + + QPaintEngine *proxy_paint_engine; + QPrintEngine *proxy_print_engine; +}; + + +QPreviewPaintEngine::QPreviewPaintEngine() + : QPaintEngine(*(new QPreviewPaintEnginePrivate), PaintEngineFeatures(AllFeatures & ~ObjectBoundingModeGradients)) +{ + Q_D(QPreviewPaintEngine); + d->proxy_print_engine = 0; + d->proxy_paint_engine = 0; +} + +QPreviewPaintEngine::~QPreviewPaintEngine() +{ + Q_D(QPreviewPaintEngine); + + qDeleteAll(d->pages); +} + +bool QPreviewPaintEngine::begin(QPaintDevice *) +{ + Q_D(QPreviewPaintEngine); + + qDeleteAll(d->pages); + d->pages.clear(); + + QPicture *page = new QPicture; + page->d_func()->in_memory_only = true; + d->painter = new QPainter(page); + d->engine = d->painter->paintEngine(); + d->pages.append(page); + d->state = QPrinter::Active; + return true; +} + +bool QPreviewPaintEngine::end() +{ + Q_D(QPreviewPaintEngine); + + delete d->painter; + d->painter = 0; + d->engine = 0; + d->state = QPrinter::Idle; + return true; +} + +void QPreviewPaintEngine::updateState(const QPaintEngineState &state) +{ + Q_D(QPreviewPaintEngine); + d->engine->updateState(state); +} + +void QPreviewPaintEngine::drawPath(const QPainterPath &path) +{ + Q_D(QPreviewPaintEngine); + d->engine->drawPath(path); +} + +void QPreviewPaintEngine::drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode) +{ + Q_D(QPreviewPaintEngine); + d->engine->drawPolygon(points, pointCount, mode); +} + +void QPreviewPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem) +{ + Q_D(QPreviewPaintEngine); + d->engine->drawTextItem(p, textItem); +} + +void QPreviewPaintEngine::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) +{ + Q_D(QPreviewPaintEngine); + d->engine->drawPixmap(r, pm, sr); +} + +void QPreviewPaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pm, const QPointF &p) +{ + Q_D(QPreviewPaintEngine); + d->engine->drawTiledPixmap(r, pm, p); +} + +bool QPreviewPaintEngine::newPage() +{ + Q_D(QPreviewPaintEngine); + + QPicture *page = new QPicture; + page->d_func()->in_memory_only = true; + QPainter *tmp_painter = new QPainter(page); + QPaintEngine *tmp_engine = tmp_painter->paintEngine(); + + // copy the painter state from the original painter + Q_ASSERT(painter()->d_func()->state && tmp_painter->d_func()->state); + *tmp_painter->d_func()->state = *painter()->d_func()->state; + + // composition modes aren't supported on a QPrinter and yields a + // warning, so ignore it for now + tmp_engine->setDirty(DirtyFlags(AllDirty & ~DirtyCompositionMode)); + tmp_engine->syncState(); + + delete d->painter; + d->painter = tmp_painter; + d->pages.append(page); + d->engine = tmp_engine; + return true; +} + +bool QPreviewPaintEngine::abort() +{ + Q_D(QPreviewPaintEngine); + end(); + qDeleteAll(d->pages); + d->state = QPrinter::Aborted; + + return true; +} + +QList<const QPicture *> QPreviewPaintEngine::pages() +{ + Q_D(QPreviewPaintEngine); + return d->pages; +} + +void QPreviewPaintEngine::setProxyEngines(QPrintEngine *printEngine, QPaintEngine *paintEngine) +{ + Q_D(QPreviewPaintEngine); + d->proxy_print_engine = printEngine; + d->proxy_paint_engine = paintEngine; +} + +void QPreviewPaintEngine::setProperty(PrintEnginePropertyKey key, const QVariant &value) +{ + Q_D(QPreviewPaintEngine); + d->proxy_print_engine->setProperty(key, value); +} + +QVariant QPreviewPaintEngine::property(PrintEnginePropertyKey key) const +{ + Q_D(const QPreviewPaintEngine); + return d->proxy_print_engine->property(key); +} + +int QPreviewPaintEngine::metric(QPaintDevice::PaintDeviceMetric id) const +{ + Q_D(const QPreviewPaintEngine); + return d->proxy_print_engine->metric(id); +} + +QPrinter::PrinterState QPreviewPaintEngine::printerState() const +{ + Q_D(const QPreviewPaintEngine); + return d->state; +} + +QT_END_NAMESPACE + +#endif |