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Diffstat (limited to 'src/declarative/items/qsgrectangle.cpp')
-rw-r--r-- | src/declarative/items/qsgrectangle.cpp | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/src/declarative/items/qsgrectangle.cpp b/src/declarative/items/qsgrectangle.cpp new file mode 100644 index 0000000000..247d6336b2 --- /dev/null +++ b/src/declarative/items/qsgrectangle.cpp @@ -0,0 +1,286 @@ +// Commit: acc903853d5ac54d646d324b7386c998bc07d464 +/**************************************************************************** +** +** 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 QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsgrectangle_p.h" +#include "qsgrectangle_p_p.h" + +#include <private/qsgcontext_p.h> +#include <private/qsgadaptationlayer_p.h> + +#include <QtGui/qpixmapcache.h> +#include <QtCore/qstringbuilder.h> +#include <QtCore/qmath.h> + +QT_BEGIN_NAMESPACE + +// XXX todo - should we change rectangle to draw entirely within its width/height? + +QSGPen::QSGPen(QObject *parent) +: QObject(parent), _width(1), _color("#000000"), _valid(false) +{ +} + +QColor QSGPen::color() const +{ + return _color; +} + +void QSGPen::setColor(const QColor &c) +{ + _color = c; + _valid = (_color.alpha() && _width >= 1) ? true : false; + emit penChanged(); +} + +int QSGPen::width() const +{ + return _width; +} + +void QSGPen::setWidth(int w) +{ + if (_width == w && _valid) + return; + + _width = w; + _valid = (_color.alpha() && _width >= 1) ? true : false; + emit penChanged(); +} + +bool QSGPen::isValid() const +{ + return _valid; +} + +QSGGradientStop::QSGGradientStop(QObject *parent) +: QObject(parent) +{ +} + +qreal QSGGradientStop::position() const +{ + return m_position; +} + +void QSGGradientStop::setPosition(qreal position) +{ + m_position = position; updateGradient(); +} + +QColor QSGGradientStop::color() const +{ + return m_color; +} + +void QSGGradientStop::setColor(const QColor &color) +{ + m_color = color; updateGradient(); +} + +void QSGGradientStop::updateGradient() +{ + if (QSGGradient *grad = qobject_cast<QSGGradient*>(parent())) + grad->doUpdate(); +} + +QSGGradient::QSGGradient(QObject *parent) +: QObject(parent), m_gradient(0) +{ +} + +QSGGradient::~QSGGradient() +{ + delete m_gradient; +} + +QDeclarativeListProperty<QSGGradientStop> QSGGradient::stops() +{ + return QDeclarativeListProperty<QSGGradientStop>(this, m_stops); +} + +const QGradient *QSGGradient::gradient() const +{ + if (!m_gradient && !m_stops.isEmpty()) { + m_gradient = new QLinearGradient(0,0,0,1.0); + for (int i = 0; i < m_stops.count(); ++i) { + const QSGGradientStop *stop = m_stops.at(i); + m_gradient->setCoordinateMode(QGradient::ObjectBoundingMode); + m_gradient->setColorAt(stop->position(), stop->color()); + } + } + + return m_gradient; +} + +void QSGGradient::doUpdate() +{ + delete m_gradient; + m_gradient = 0; + emit updated(); +} + +int QSGRectanglePrivate::doUpdateSlotIdx = -1; + +QSGRectangle::QSGRectangle(QSGItem *parent) +: QSGItem(*(new QSGRectanglePrivate), parent) +{ + setFlag(ItemHasContents); +} + +void QSGRectangle::doUpdate() +{ + Q_D(QSGRectangle); + const int pw = d->pen && d->pen->isValid() ? d->pen->width() : 0; + d->setPaintMargin((pw+1)/2); + update(); +} + +QSGPen *QSGRectangle::border() +{ + Q_D(QSGRectangle); + return d->getPen(); +} + +QSGGradient *QSGRectangle::gradient() const +{ + Q_D(const QSGRectangle); + return d->gradient; +} + +void QSGRectangle::setGradient(QSGGradient *gradient) +{ + Q_D(QSGRectangle); + if (d->gradient == gradient) + return; + static int updatedSignalIdx = -1; + if (updatedSignalIdx < 0) + updatedSignalIdx = QSGGradient::staticMetaObject.indexOfSignal("updated()"); + if (d->doUpdateSlotIdx < 0) + d->doUpdateSlotIdx = QSGRectangle::staticMetaObject.indexOfSlot("doUpdate()"); + if (d->gradient) + QMetaObject::disconnect(d->gradient, updatedSignalIdx, this, d->doUpdateSlotIdx); + d->gradient = gradient; + if (d->gradient) + QMetaObject::connect(d->gradient, updatedSignalIdx, this, d->doUpdateSlotIdx); + update(); +} + +qreal QSGRectangle::radius() const +{ + Q_D(const QSGRectangle); + return d->radius; +} + +void QSGRectangle::setRadius(qreal radius) +{ + Q_D(QSGRectangle); + if (d->radius == radius) + return; + + d->radius = radius; + update(); + emit radiusChanged(); +} + +QColor QSGRectangle::color() const +{ + Q_D(const QSGRectangle); + return d->color; +} + +void QSGRectangle::setColor(const QColor &c) +{ + Q_D(QSGRectangle); + if (d->color == c) + return; + + d->color = c; + update(); + emit colorChanged(); +} + +QSGNode *QSGRectangle::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *data) +{ + Q_UNUSED(data); + Q_D(QSGRectangle); + + if (width() <= 0 || height() <= 0) { + delete oldNode; + return 0; + } + + QSGRectangleNode *rectangle = static_cast<QSGRectangleNode *>(oldNode); + if (!rectangle) rectangle = d->sceneGraphContext()->createRectangleNode(); + + rectangle->setRect(QRectF(0, 0, width(), height())); + rectangle->setColor(d->color); + + if (d->pen && d->pen->isValid()) { + rectangle->setPenColor(d->pen->color()); + rectangle->setPenWidth(d->pen->width()); + } else { + rectangle->setPenColor(QColor()); + rectangle->setPenWidth(0); + } + + rectangle->setRadius(d->radius); + + QGradientStops stops; + if (d->gradient) { + QList<QSGGradientStop *> qxstops = d->gradient->m_stops; + for (int i = 0; i < qxstops.size(); ++i) + stops.append(QGradientStop(qxstops.at(i)->position(), qxstops.at(i)->color())); + } + rectangle->setGradientStops(stops); + + rectangle->update(); + + return rectangle; +} + +QRectF QSGRectangle::boundingRect() const +{ + Q_D(const QSGRectangle); + return QRectF(-d->paintmargin, -d->paintmargin, width()+d->paintmargin*2, height()+d->paintmargin*2); +} + +QT_END_NAMESPACE |