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Diffstat (limited to 'src/declarative/items/qquickrectangle.cpp')
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diff --git a/src/declarative/items/qquickrectangle.cpp b/src/declarative/items/qquickrectangle.cpp deleted file mode 100644 index c3cbaaa00e..0000000000 --- a/src/declarative/items/qquickrectangle.cpp +++ /dev/null @@ -1,556 +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 QtDeclarative 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 "qquickrectangle_p.h" -#include "qquickrectangle_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? -/*! - \internal - \class QQuickPen - \brief The QQuickPen class provides a pen used for drawing rectangle borders on a QQuickView. - - By default, the pen is invalid and nothing is drawn. You must either set a color (then the default - width is 1) or a width (then the default color is black). - - A width of 1 indicates is a single-pixel line on the border of the item being painted. - - Example: - \qml - Rectangle { - border.width: 2 - border.color: "red" - } - \endqml -*/ - -QQuickPen::QQuickPen(QObject *parent) - : QObject(parent) - , m_width(1) - , m_color("#000000") - , m_aligned(true) - , m_valid(false) -{ -} - -qreal QQuickPen::width() const -{ - return m_width; -} - -void QQuickPen::setWidth(qreal w) -{ - if (m_width == w && m_valid) - return; - - m_width = w; - m_valid = m_color.alpha() && (qRound(m_width) >= 1 || (!m_aligned && m_width > 0)); - emit penChanged(); -} - -QColor QQuickPen::color() const -{ - return m_color; -} - -void QQuickPen::setColor(const QColor &c) -{ - m_color = c; - m_valid = m_color.alpha() && (qRound(m_width) >= 1 || (!m_aligned && m_width > 0)); - emit penChanged(); -} - -bool QQuickPen::aligned() const -{ - return m_aligned; -} - -void QQuickPen::setAligned(bool aligned) -{ - if (aligned == m_aligned) - return; - m_aligned = aligned; - m_valid = m_color.alpha() && (qRound(m_width) >= 1 || (!m_aligned && m_width > 0)); - emit penChanged(); -} - -bool QQuickPen::isValid() const -{ - return m_valid; -} - -/*! - \qmlclass GradientStop QQuickGradientStop - \inqmlmodule QtQuick 2 - \ingroup qml-basic-visual-elements - \brief The GradientStop item defines the color at a position in a Gradient. - - \sa Gradient -*/ - -/*! - \qmlproperty real QtQuick2::GradientStop::position - \qmlproperty color QtQuick2::GradientStop::color - - The position and color properties describe the color used at a given - position in a gradient, as represented by a gradient stop. - - The default position is 0.0; the default color is black. - - \sa Gradient -*/ -QQuickGradientStop::QQuickGradientStop(QObject *parent) - : QObject(parent) -{ -} - -qreal QQuickGradientStop::position() const -{ - return m_position; -} - -void QQuickGradientStop::setPosition(qreal position) -{ - m_position = position; updateGradient(); -} - -QColor QQuickGradientStop::color() const -{ - return m_color; -} - -void QQuickGradientStop::setColor(const QColor &color) -{ - m_color = color; updateGradient(); -} - -void QQuickGradientStop::updateGradient() -{ - if (QQuickGradient *grad = qobject_cast<QQuickGradient*>(parent())) - grad->doUpdate(); -} - -/*! - \qmlclass Gradient QQuickGradient - \inqmlmodule QtQuick 2 - \ingroup qml-basic-visual-elements - \brief The Gradient item defines a gradient fill. - - A gradient is defined by two or more colors, which will be blended seamlessly. - - The colors are specified as a set of GradientStop child items, each of - which defines a position on the gradient from 0.0 to 1.0 and a color. - The position of each GradientStop is defined by setting its - \l{GradientStop::}{position} property; its color is defined using its - \l{GradientStop::}{color} property. - - A gradient without any gradient stops is rendered as a solid white fill. - - Note that this item is not a visual representation of a gradient. To display a - gradient, use a visual element (like \l Rectangle) which supports the use - of gradients. - - \section1 Example Usage - - \div {class="float-right"} - \inlineimage qml-gradient.png - \enddiv - - The following example declares a \l Rectangle item with a gradient starting - with red, blending to yellow at one third of the height of the rectangle, - and ending with green: - - \snippet doc/src/snippets/declarative/gradient.qml code - - \clearfloat - \section1 Performance and Limitations - - Calculating gradients can be computationally expensive compared to the use - of solid color fills or images. Consider using gradients for static items - in a user interface. - - In Qt 4.7, only vertical, linear gradients can be applied to items. If you - need to apply different orientations of gradients, a combination of rotation - and clipping will need to be applied to the relevant items. This can - introduce additional performance requirements for your application. - - The use of animations involving gradient stops may not give the desired - result. An alternative way to animate gradients is to use pre-generated - images or SVG drawings containing gradients. - - \sa GradientStop -*/ - -/*! - \qmlproperty list<GradientStop> QtQuick2::Gradient::stops - \default - - This property holds the gradient stops describing the gradient. - - By default, this property contains an empty list. - - To set the gradient stops, define them as children of the Gradient element. -*/ -QQuickGradient::QQuickGradient(QObject *parent) -: QObject(parent), m_gradient(0) -{ -} - -QQuickGradient::~QQuickGradient() -{ - delete m_gradient; -} - -QDeclarativeListProperty<QQuickGradientStop> QQuickGradient::stops() -{ - return QDeclarativeListProperty<QQuickGradientStop>(this, m_stops); -} - -const QGradient *QQuickGradient::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 QQuickGradientStop *stop = m_stops.at(i); - m_gradient->setCoordinateMode(QGradient::ObjectBoundingMode); - m_gradient->setColorAt(stop->position(), stop->color()); - } - } - - return m_gradient; -} - -void QQuickGradient::doUpdate() -{ - delete m_gradient; - m_gradient = 0; - emit updated(); -} - -int QQuickRectanglePrivate::doUpdateSlotIdx = -1; - -/*! - \qmlclass Rectangle QQuickRectangle - \inqmlmodule QtQuick 2 - \ingroup qml-basic-visual-elements - \brief The Rectangle item provides a filled rectangle with an optional border. - \inherits Item - - Rectangle items are used to fill areas with solid color or gradients, and are - often used to hold other items. - - \section1 Appearance - - Each Rectangle item is painted using either a solid fill color, specified using - the \l color property, or a gradient, defined using a Gradient element and set - using the \l gradient property. If both a color and a gradient are specified, - the gradient is used. - - You can add an optional border to a rectangle with its own color and thickness - by setting the \l border.color and \l border.width properties. - - You can also create rounded rectangles using the \l radius property. Since this - introduces curved edges to the corners of a rectangle, it may be appropriate to - set the \l smooth property to improve its appearance. - - \section1 Example Usage - - \div {class="float-right"} - \inlineimage declarative-rect.png - \enddiv - - The following example shows the effects of some of the common properties on a - Rectangle item, which in this case is used to create a square: - - \snippet doc/src/snippets/declarative/rectangle/rectangle.qml document - - \clearfloat - \section1 Performance - - Using the \l smooth property improves the appearance of a rounded rectangle at - the cost of rendering performance. You should consider unsetting this property - for rectangles in motion, and only set it when they are stationary. - - \sa Image -*/ - -QQuickRectangle::QQuickRectangle(QQuickItem *parent) -: QQuickItem(*(new QQuickRectanglePrivate), parent) -{ - setFlag(ItemHasContents); -} - -void QQuickRectangle::doUpdate() -{ - Q_D(QQuickRectangle); - qreal penMargin = 0; - qreal penOffset = 0; - if (d->pen && d->pen->isValid()) { - if (d->pen->aligned()) { - const int pw = qRound(d->pen->width()); - penMargin = qreal(0.5) * pw; - penOffset = (pw & 1) * qreal(0.5); - } else { - penMargin = qreal(0.5) * d->pen->width(); - } - } - if (penMargin != d->penMargin || penOffset != d->penOffset) { - d->penMargin = penMargin; - d->penOffset = penOffset; - d->dirty(QQuickItemPrivate::Size); // update clip - } - update(); -} - -/*! - \qmlproperty int QtQuick2::Rectangle::border.width - \qmlproperty color QtQuick2::Rectangle::border.color - - The width and color used to draw the border of the rectangle. - - A width of 1 creates a thin line. For no line, use a width of 0 or a transparent color. - - \note The width of the rectangle's border does not affect the geometry of the - rectangle itself or its position relative to other items if anchors are used. - - If \c border.width is an odd number, the rectangle is painted at a half-pixel offset to retain - border smoothness. Also, the border is rendered evenly on either side of the - rectangle's boundaries, and the spare pixel is rendered to the right and below the - rectangle (as documented for QRect rendering). This can cause unintended effects if - \c border.width is 1 and the rectangle is \l{Item::clip}{clipped} by a parent item: - - \div {class="float-right"} - \inlineimage rect-border-width.png - \enddiv - - \snippet doc/src/snippets/declarative/rectangle/rect-border-width.qml 0 - - \clearfloat - Here, the innermost rectangle's border is clipped on the bottom and right edges by its - parent. To avoid this, the border width can be set to two instead of one. -*/ -QQuickPen *QQuickRectangle::border() -{ - Q_D(QQuickRectangle); - return d->getPen(); -} - -/*! - \qmlproperty Gradient QtQuick2::Rectangle::gradient - - The gradient to use to fill the rectangle. - - This property allows for the construction of simple vertical gradients. - Other gradients may by formed by adding rotation to the rectangle. - - \div {class="float-left"} - \inlineimage declarative-rect_gradient.png - \enddiv - - \snippet doc/src/snippets/declarative/rectangle/rectangle-gradient.qml rectangles - \clearfloat - - If both a gradient and a color are specified, the gradient will be used. - - \sa Gradient, color -*/ -QQuickGradient *QQuickRectangle::gradient() const -{ - Q_D(const QQuickRectangle); - return d->gradient; -} - -void QQuickRectangle::setGradient(QQuickGradient *gradient) -{ - Q_D(QQuickRectangle); - if (d->gradient == gradient) - return; - static int updatedSignalIdx = -1; - if (updatedSignalIdx < 0) - updatedSignalIdx = QQuickGradient::staticMetaObject.indexOfSignal("updated()"); - if (d->doUpdateSlotIdx < 0) - d->doUpdateSlotIdx = QQuickRectangle::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(); -} - -/*! - \qmlproperty real QtQuick2::Rectangle::radius - This property holds the corner radius used to draw a rounded rectangle. - - If radius is non-zero, the rectangle will be painted as a rounded rectangle, otherwise it will be - painted as a normal rectangle. The same radius is used by all 4 corners; there is currently - no way to specify different radii for different corners. -*/ -qreal QQuickRectangle::radius() const -{ - Q_D(const QQuickRectangle); - return d->radius; -} - -void QQuickRectangle::setRadius(qreal radius) -{ - Q_D(QQuickRectangle); - if (d->radius == radius) - return; - - d->radius = radius; - update(); - emit radiusChanged(); -} - -/*! - \qmlproperty color QtQuick2::Rectangle::color - This property holds the color used to fill the rectangle. - - The default color is white. - - \div {class="float-right"} - \inlineimage rect-color.png - \enddiv - - The following example shows rectangles with colors specified - using hexadecimal and named color notation: - - \snippet doc/src/snippets/declarative/rectangle/rectangle-colors.qml rectangles - - \clearfloat - If both a gradient and a color are specified, the gradient will be used. - - \sa gradient -*/ -QColor QQuickRectangle::color() const -{ - Q_D(const QQuickRectangle); - return d->color; -} - -void QQuickRectangle::setColor(const QColor &c) -{ - Q_D(QQuickRectangle); - if (d->color == c) - return; - - d->color = c; - update(); - emit colorChanged(); -} - -QSGNode *QQuickRectangle::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *data) -{ - Q_UNUSED(data); - Q_D(QQuickRectangle); - - if (width() <= 0 || height() <= 0 - || (d->color.alpha() == 0 && (!d->pen || d->pen->width() == 0 || d->pen->color().alpha() == 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()); - rectangle->setAligned(d->pen->aligned()); - } else { - rectangle->setPenWidth(0); - } - - rectangle->setRadius(d->radius); - - QGradientStops stops; - if (d->gradient) { - QList<QQuickGradientStop *> qxstops = d->gradient->m_stops; - for (int i = 0; i < qxstops.size(); ++i){ - int j = 0; - while (j < stops.size() && stops.at(j).first < qxstops[i]->position()) - j++; - stops.insert(j, QGradientStop(qxstops.at(i)->position(), qxstops.at(i)->color())); - } - } - rectangle->setGradientStops(stops); - - rectangle->update(); - - return rectangle; -} -/*! - \qmlproperty bool QtQuick2::Rectangle::smooth - - Set this property if you want the item to be smoothly scaled or - transformed. Smooth filtering gives better visual quality, but is slower. If - the item is displayed at its natural size, this property has no visual or - performance effect. - - \note Generally scaling artifacts are only visible if the item is stationary on - the screen. A common pattern when animating an item is to disable smooth - filtering at the beginning of the animation and reenable it at the conclusion. - - \image rect-smooth.png - On this image, smooth is turned off for the top half and on for the bottom half. -*/ - -QRectF QQuickRectangle::boundingRect() const -{ - Q_D(const QQuickRectangle); - return QRectF(d->penOffset - d->penMargin, d->penOffset - d->penMargin, - d->width + 2 * d->penMargin, d->height + 2 * d->penMargin); -} - -QT_END_NAMESPACE |