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Diffstat (limited to 'src/imports/pathitem/qquickpathitem.cpp')
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diff --git a/src/imports/pathitem/qquickpathitem.cpp b/src/imports/pathitem/qquickpathitem.cpp new file mode 100644 index 0000000000..5255a55798 --- /dev/null +++ b/src/imports/pathitem/qquickpathitem.cpp @@ -0,0 +1,2258 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickpathitem_p.h" +#include "qquickpathitem_p_p.h" +#include "qquickpathitemgenericrenderer_p.h" +#include "qquickpathitemnvprrenderer_p.h" +#include "qquickpathitemsoftwarerenderer_p.h" +#include <private/qsgtexture_p.h> +#include <private/qquicksvgparser_p.h> +#include <QtGui/private/qdrawhelper_p.h> +#include <QOpenGLFunctions> + +#include <private/qv4engine_p.h> +#include <private/qv4object_p.h> +#include <private/qv4qobjectwrapper_p.h> +#include <private/qv4mm_p.h> +#include <private/qqmlengine_p.h> + +QT_BEGIN_NAMESPACE + +QQuickPathItemStrokeFillParams::QQuickPathItemStrokeFillParams() + : strokeColor(Qt::white), + strokeWidth(1), + fillColor(Qt::white), + fillRule(QQuickVisualPath::OddEvenFill), + joinStyle(QQuickVisualPath::BevelJoin), + miterLimit(2), + capStyle(QQuickVisualPath::SquareCap), + strokeStyle(QQuickVisualPath::SolidLine), + dashOffset(0), + fillGradient(nullptr) +{ + dashPattern << 4 << 2; // 4 * strokeWidth dash followed by 2 * strokeWidth space +} + +QPainterPath QQuickPathItemPath::toPainterPath() const +{ + QPainterPath p; + int coordIdx = 0; + for (int i = 0; i < cmd.count(); ++i) { + switch (cmd[i]) { + case QQuickPathItemPath::MoveTo: + p.moveTo(coords[coordIdx], coords[coordIdx + 1]); + coordIdx += 2; + break; + case QQuickPathItemPath::LineTo: + p.lineTo(coords[coordIdx], coords[coordIdx + 1]); + coordIdx += 2; + break; + case QQuickPathItemPath::QuadTo: + p.quadTo(coords[coordIdx], coords[coordIdx + 1], + coords[coordIdx + 2], coords[coordIdx + 3]); + coordIdx += 4; + break; + case QQuickPathItemPath::CubicTo: + p.cubicTo(coords[coordIdx], coords[coordIdx + 1], + coords[coordIdx + 2], coords[coordIdx + 3], + coords[coordIdx + 4], coords[coordIdx + 5]); + coordIdx += 6; + break; + case QQuickPathItemPath::ArcTo: + // does not map to the QPainterPath API; reuse the helper code from QQuickSvgParser + QQuickSvgParser::pathArc(p, + coords[coordIdx], coords[coordIdx + 1], // radius + coords[coordIdx + 2], // xAxisRotation + !qFuzzyIsNull(coords[coordIdx + 6]), // useLargeArc + !qFuzzyIsNull(coords[coordIdx + 5]), // sweep flag + coords[coordIdx + 3], coords[coordIdx + 4], // end + p.currentPosition().x(), p.currentPosition().y()); + coordIdx += 7; + break; + default: + qWarning("Unknown JS path command: %d", cmd[i]); + break; + } + } + return p; +} + +/*! + \qmltype VisualPath + \instantiates QQuickVisualPath + \inqmlmodule QtQuick + \ingroup qtquick-paths + \ingroup qtquick-views + \inherits Object + \brief Describes a Path and associated properties for stroking and filling + \since 5.10 + + A PathItem contains one or more VisualPath elements. At least one + VisualPath is necessary in order to have a PathItem output anything + visible. A VisualPath in turn contains a Path and properties describing the + stroking and filling parameters, such as the stroke width and color, the + fill color or gradient, join and cap styles, and so on. Finally, the Path + object contains a list of path elements like PathMove, PathLine, PathCubic, + PathQuad, PathArc. + + Any property changes in these data sets will be bubble up and change the + output of the PathItem. This means that it is simple and easy to change, or + even animate, the starting and ending position, control points, or any + stroke or fill parameters using the usual QML bindings and animation types + like NumberAnimation. + + In the following example the line join style changes automatically based on + the value of joinStyleIndex: + + \code + VisualPath { + strokeColor: "black" + strokeWidth: 16 + fillColor: "transparent" + capStyle: VisualPath.RoundCap + + property int joinStyleIndex: 0 + property variant styles: [ VisualPath.BevelJoin, VisualPath.MiterJoin, VisualPath.RoundJoin ] + + joinStyle: styles[joinStyleIndex] + + Path { + startX: 30 + startY: 30 + PathLine { x: 100; y: 100 } + PathLine { x: 30; y: 100 } + } + } + \endcode + + Once associated with a PathItem, here is the output with a joinStyleIndex + of 2 (VisualPath.RoundJoin): + + \image visualpath-code-example.png + */ + +QQuickVisualPathPrivate::QQuickVisualPathPrivate() + : path(nullptr), + dirty(DirtyAll) +{ +} + +QQuickVisualPath::QQuickVisualPath(QObject *parent) + : QObject(*(new QQuickVisualPathPrivate), parent) +{ +} + +QQuickVisualPath::~QQuickVisualPath() +{ +} + +/*! + \qmlproperty Path QtQuick::VisualPath::path + + This property holds the Path object. + + \default + */ + +QQuickPath *QQuickVisualPath::path() const +{ + Q_D(const QQuickVisualPath); + return d->path; +} + +void QQuickVisualPath::setPath(QQuickPath *path) +{ + Q_D(QQuickVisualPath); + if (d->path == path) + return; + + if (d->path) + qmlobject_disconnect(d->path, QQuickPath, SIGNAL(changed()), + this, QQuickVisualPath, SLOT(_q_pathChanged())); + d->path = path; + qmlobject_connect(d->path, QQuickPath, SIGNAL(changed()), + this, QQuickVisualPath, SLOT(_q_pathChanged())); + + d->dirty |= QQuickVisualPathPrivate::DirtyPath; + emit pathChanged(); + emit changed(); +} + +void QQuickVisualPathPrivate::_q_pathChanged() +{ + Q_Q(QQuickVisualPath); + dirty |= DirtyPath; + emit q->changed(); +} + +/*! + \qmlproperty color QtQuick::VisualPath::strokeColor + + This property holds the stroking color. + + When set to \c transparent, no stroking occurs. + + The default value is \c white. + */ + +QColor QQuickVisualPath::strokeColor() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.strokeColor; +} + +void QQuickVisualPath::setStrokeColor(const QColor &color) +{ + Q_D(QQuickVisualPath); + if (d->sfp.strokeColor != color) { + d->sfp.strokeColor = color; + d->dirty |= QQuickVisualPathPrivate::DirtyStrokeColor; + emit strokeColorChanged(); + emit changed(); + } +} + +/*! + \qmlproperty color QtQuick::VisualPath::strokeWidth + + This property holds the stroke width. + + When set to a negative value, no stroking occurs. + + The default value is 1. + */ + +qreal QQuickVisualPath::strokeWidth() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.strokeWidth; +} + +void QQuickVisualPath::setStrokeWidth(qreal w) +{ + Q_D(QQuickVisualPath); + if (d->sfp.strokeWidth != w) { + d->sfp.strokeWidth = w; + d->dirty |= QQuickVisualPathPrivate::DirtyStrokeWidth; + emit strokeWidthChanged(); + emit changed(); + } +} + +/*! + \qmlproperty color QtQuick::VisualPath::fillColor + + This property holds the fill color. + + When set to \c transparent, no filling occurs. + + The default value is \c white. + */ + +QColor QQuickVisualPath::fillColor() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.fillColor; +} + +void QQuickVisualPath::setFillColor(const QColor &color) +{ + Q_D(QQuickVisualPath); + if (d->sfp.fillColor != color) { + d->sfp.fillColor = color; + d->dirty |= QQuickVisualPathPrivate::DirtyFillColor; + emit fillColorChanged(); + emit changed(); + } +} + +/*! + \qmlproperty enumeration QtQuick::VisualPath::fillRule + + This property holds the fill rule. The default value is + VisualPath.OddEvenFill. For an example on fill rules, see + QPainterPath::setFillRule(). + + \list + \li VisualPath.OddEvenFill + \li VisualPath.WindingFill + \endlist + */ + +QQuickVisualPath::FillRule QQuickVisualPath::fillRule() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.fillRule; +} + +void QQuickVisualPath::setFillRule(FillRule fillRule) +{ + Q_D(QQuickVisualPath); + if (d->sfp.fillRule != fillRule) { + d->sfp.fillRule = fillRule; + d->dirty |= QQuickVisualPathPrivate::DirtyFillRule; + emit fillRuleChanged(); + emit changed(); + } +} + +/*! + \qmlproperty enumeration QtQuick::VisualPath::joinStyle + + This property defines how joins between two connected lines are drawn. The + default value is VisualPath.BevelJoin. + + \list + \li VisualPath.MiterJoin - The outer edges of the lines are extended to meet at an angle, and this area is filled. + \li VisualPath.BevelJoin - The triangular notch between the two lines is filled. + \li VisualPath.RoundJoin - A circular arc between the two lines is filled. + \endlist + */ + +QQuickVisualPath::JoinStyle QQuickVisualPath::joinStyle() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.joinStyle; +} + +void QQuickVisualPath::setJoinStyle(JoinStyle style) +{ + Q_D(QQuickVisualPath); + if (d->sfp.joinStyle != style) { + d->sfp.joinStyle = style; + d->dirty |= QQuickVisualPathPrivate::DirtyStyle; + emit joinStyleChanged(); + emit changed(); + } +} + +/*! + \qmlproperty int QtQuick::VisualPath::miterLimit + + When VisualPath.joinStyle is set to VisualPath.MiterJoin, this property + specifies how far the miter join can extend from the join point. + + The default value is 2. + */ + +int QQuickVisualPath::miterLimit() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.miterLimit; +} + +void QQuickVisualPath::setMiterLimit(int limit) +{ + Q_D(QQuickVisualPath); + if (d->sfp.miterLimit != limit) { + d->sfp.miterLimit = limit; + d->dirty |= QQuickVisualPathPrivate::DirtyStyle; + emit miterLimitChanged(); + emit changed(); + } +} + +/*! + \qmlproperty enumeration QtQuick::VisualPath::capStyle + + This property defines how the end points of lines are drawn. The + default value is VisualPath.SquareCap. + + \list + \li VisualPath.FlatCap - A square line end that does not cover the end point of the line. + \li VisualPath.SquareCap - A square line end that covers the end point and extends beyond it by half the line width. + \li VisualPath.RoundCap - A rounded line end. + \endlist + */ + +QQuickVisualPath::CapStyle QQuickVisualPath::capStyle() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.capStyle; +} + +void QQuickVisualPath::setCapStyle(CapStyle style) +{ + Q_D(QQuickVisualPath); + if (d->sfp.capStyle != style) { + d->sfp.capStyle = style; + d->dirty |= QQuickVisualPathPrivate::DirtyStyle; + emit capStyleChanged(); + emit changed(); + } +} + +/*! + \qmlproperty enumeration QtQuick::VisualPath::strokeStyle + + This property defines the style of stroking. The default value is + VisualPath.SolidLine. + + \list + \li VisualPath.SolidLine - A plain line. + \li VisualPath.DashLine - Dashes separated by a few pixels. + \endlist + */ + +QQuickVisualPath::StrokeStyle QQuickVisualPath::strokeStyle() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.strokeStyle; +} + +void QQuickVisualPath::setStrokeStyle(StrokeStyle style) +{ + Q_D(QQuickVisualPath); + if (d->sfp.strokeStyle != style) { + d->sfp.strokeStyle = style; + d->dirty |= QQuickVisualPathPrivate::DirtyDash; + emit strokeStyleChanged(); + emit changed(); + } +} + +/*! + \qmlproperty real QtQuick::VisualPath::dashOffset + + This property defines the starting point on the dash pattern, measured in + units used to specify the dash pattern. + + The default value is 0. + + \sa QPen::setDashOffset() + */ + +qreal QQuickVisualPath::dashOffset() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.dashOffset; +} + +void QQuickVisualPath::setDashOffset(qreal offset) +{ + Q_D(QQuickVisualPath); + if (d->sfp.dashOffset != offset) { + d->sfp.dashOffset = offset; + d->dirty |= QQuickVisualPathPrivate::DirtyDash; + emit dashOffsetChanged(); + emit changed(); + } +} + +/*! + \qmlproperty list<real> QtQuick::VisualPath::dashPattern + + This property defines the dash pattern when VisualPath.strokeStyle is set + to VisualPath.DashLine. The pattern must be specified as an even number of + positive entries where the entries 1, 3, 5... are the dashes and 2, 4, 6... + are the spaces. The pattern is specified in units of the pen's width. + + The default value is (4, 2), meaning a dash of 4 * VisualPath.strokeWidth + pixels followed by a space of 2 * VisualPath.strokeWidth pixels. + + \sa QPen::setDashPattern() + */ + +QVector<qreal> QQuickVisualPath::dashPattern() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.dashPattern; +} + +void QQuickVisualPath::setDashPattern(const QVector<qreal> &array) +{ + Q_D(QQuickVisualPath); + if (d->sfp.dashPattern != array) { + d->sfp.dashPattern = array; + d->dirty |= QQuickVisualPathPrivate::DirtyDash; + emit dashPatternChanged(); + emit changed(); + } +} + +/*! + \qmlproperty PathGradient QtQuick::VisualPath::fillGradient + + This property defines the fill gradient. By default no gradient is enabled + and the value is \c null. In this case the fill uses a solid color based on + the value of VisuaLPath.fillColor. + + When set, VisualPath.fillColor is ignored and filling is done using one of + the PathGradient subtypes. + */ + +QQuickPathGradient *QQuickVisualPath::fillGradient() const +{ + Q_D(const QQuickVisualPath); + return d->sfp.fillGradient; +} + +void QQuickVisualPath::setFillGradient(QQuickPathGradient *gradient) +{ + Q_D(QQuickVisualPath); + if (d->sfp.fillGradient != gradient) { + if (d->sfp.fillGradient) + qmlobject_disconnect(d->sfp.fillGradient, QQuickPathGradient, SIGNAL(updated()), + this, QQuickVisualPath, SLOT(_q_fillGradientChanged())); + d->sfp.fillGradient = gradient; + if (d->sfp.fillGradient) + qmlobject_connect(d->sfp.fillGradient, QQuickPathGradient, SIGNAL(updated()), + this, QQuickVisualPath, SLOT(_q_fillGradientChanged())); + d->dirty |= QQuickVisualPathPrivate::DirtyFillGradient; + emit changed(); + } +} + +void QQuickVisualPathPrivate::_q_fillGradientChanged() +{ + Q_Q(QQuickVisualPath); + dirty |= DirtyFillGradient; + emit q->changed(); +} + +void QQuickVisualPath::resetFillGradient() +{ + setFillGradient(nullptr); +} + +/*! + \qmltype PathItem + \instantiates QQuickPathItem + \inqmlmodule QtQuick + \ingroup qtquick-paths + \ingroup qtquick-views + \inherits Item + \brief Renders a path + \since 5.10 + + Renders a path either by generating geometry via QPainterPath and manual + triangulation or by using a GPU vendor extension like \c{GL_NV_path_rendering}. + + This approach is different from rendering shapes via QQuickPaintedItem or + the 2D Canvas because the path never gets rasterized in software. Therefore + PathItem is suitable for creating shapes spreading over larger areas of the + screen, avoiding the performance penalty for texture uploads or framebuffer + blits. In addition, the declarative API allows manipulating, binding to, + and even animating the path element properties like starting and ending + position, the control points, etc. + + The types for specifying path elements are shared between \l PathView and + PathItem. However, not all PathItem implementations support all path + element types, while some may not make sense for PathView. PathItem's + currently supported subset is: PathMove, PathLine, PathQuad, PathCubic, + PathArc, PathSvg. + + See \l Path for a detailed overview of the supported path elements. + + \code + PathItem { + width: 200 + height: 150 + anchors.centerIn: parent + VisualPath { + strokeWidth: 4 + strokeColor: "red" + fillGradient: PathLinearGradient { + x1: 20; y1: 20 + x2: 180; y2: 130 + PathGradientStop { position: 0; color: "blue" } + PathGradientStop { position: 0.2; color: "green" } + PathGradientStop { position: 0.4; color: "red" } + PathGradientStop { position: 0.6; color: "yellow" } + PathGradientStop { position: 1; color: "cyan" } + } + strokeStyle: VisualPath.DashLine + dashPattern: [ 1, 4 ] + Path { + startX: 20; startY: 20 + PathLine { x: 180; y: 130 } + PathLine { x: 20; y: 130 } + PathLine { x: 20; y: 20 } + } + } + } + \endcode + + \image pathitem-code-example.png + + \note It is important to be aware of performance implications, in + particular when the application is running on the generic PathItem + implementation due to not having support for accelerated path rendering. + The geometry generation happens entirely on the CPU in this case, and this + is potentially expensive. Changing the set of path elements, changing the + properties of these elements, or changing certain properties of the + PathItem itself all lead to retriangulation on every change. Therefore, + applying animation to such properties can heavily affect performance on + less powerful systems. If animating properties other than stroke and fill + colors is a must, it is recommended to target systems providing + \c{GL_NV_path_rendering} where the cost of path property changes is much + smaller. + + The following list summarizes the available PathItem rendering approaches: + + \list + + \li When running with the default, OpenGL backend of Qt Quick, both the + generic, triangulation-based and the NVIDIA-specific + \c{GL_NV_path_rendering} methods are available. The choice is made at + runtime, depending on the graphics driver's capabilities. When this is not + desired, applications can force using the generic method by setting the + PathItem.enableVendorExtensions property to \c false. + + \li The \c software backend is fully supported. The path is rendered via + QPainter::strokePath() and QPainter::fillPath() in this case. + + \li The Direct 3D 12 backend is not currently supported. + + \li The OpenVG backend is not currently supported. + + \endlist + + \sa Path, PathMove, PathLine, PathQuad, PathCubic, PathArc, PathSvg +*/ + +QQuickPathItemPrivate::QQuickPathItemPrivate() + : componentComplete(true), + vpChanged(false), + rendererType(QQuickPathItem::UnknownRenderer), + async(false), + status(QQuickPathItem::Null), + renderer(nullptr), + enableVendorExts(true) +{ +} + +QQuickPathItemPrivate::~QQuickPathItemPrivate() +{ + delete renderer; +} + +void QQuickPathItemPrivate::_q_visualPathChanged() +{ + Q_Q(QQuickPathItem); + vpChanged = true; + q->polish(); +} + +void QQuickPathItemPrivate::setStatus(QQuickPathItem::Status newStatus) +{ + Q_Q(QQuickPathItem); + if (status != newStatus) { + status = newStatus; + emit q->statusChanged(); + } +} + +QQuickPathItem::QQuickPathItem(QQuickItem *parent) + : QQuickItem(*(new QQuickPathItemPrivate), parent) +{ + setFlag(ItemHasContents); +} + +QQuickPathItem::~QQuickPathItem() +{ +} + +/*! + \qmlproperty enumeration QtQuick::PathItem::rendererType + + This property determines which path rendering backend is active. + + \list + + \li PathItem.UnknownRenderer - The renderer is unknown. + + \li PathItem.GeometryRenderer - The generic, driver independent solution + for OpenGL. Uses the same CPU-based triangulation approach as QPainter's + OpenGL 2 paint engine. This is the default on non-NVIDIA hardware when the + default, OpenGL Qt Quick scenegraph backend is in use. + + \li PathItem.NvprRenderer - Path items are rendered by performing OpenGL + calls using the \c{GL_NV_path_rendering} extension. This is the default on + NVIDIA hardware when the default, OpenGL Qt Quick scenegraph backend is in + use. + + \li PathItem.SoftwareRenderer - Pure QPainter drawing using the raster + paint engine. This is the default, and only, option when the Qt Quick + scenegraph is running with the \c software backend. + + \endlist +*/ + +QQuickPathItem::RendererType QQuickPathItem::rendererType() const +{ + Q_D(const QQuickPathItem); + return d->rendererType; +} + +/*! + \qmlproperty bool QtQuick::PathItem::asynchronous + + When PathItem.rendererType is PathItem.GeometryRenderer, the input path is + triangulated on the CPU during the polishing phase of the PathItem. This is + potentially expensive. To offload this work to separate worker threads, set + this property to \c true. + + When enabled, making a PathItem visible will not wait for the content to + become available. Instead, the gui/main thread is not blocked and the + results of the path rendering are shown only when all the asynchronous work + has been finished. + + The default value is \c false. + */ + +bool QQuickPathItem::asynchronous() const +{ + Q_D(const QQuickPathItem); + return d->async; +} + +void QQuickPathItem::setAsynchronous(bool async) +{ + Q_D(QQuickPathItem); + if (d->async != async) { + d->async = async; + emit asynchronousChanged(); + if (d->componentComplete) + d->_q_visualPathChanged(); + } +} + +/*! + \qmlproperty bool QtQuick::PathItem::enableVendorExtensions + + This property controls the usage of non-standard OpenGL extensions like + GL_NV_path_rendering. To disable PathItem.NvprRenderer and force a uniform + behavior regardless of the graphics card and drivers, set this property to + \c false. + + The default value is \c true. + */ + +bool QQuickPathItem::enableVendorExtensions() const +{ + Q_D(const QQuickPathItem); + return d->enableVendorExts; +} + +void QQuickPathItem::setEnableVendorExtensions(bool enable) +{ + Q_D(QQuickPathItem); + if (d->enableVendorExts != enable) { + d->enableVendorExts = enable; + emit enableVendorExtensionsChanged(); + } +} + +/*! + \qmlproperty enumeration QtQuick::PathItem::status + + This property determines the status of the PathItem and is relevant when + PathItem.asynchronous is set to \c true. + + \list + + \li PathItem.Null - Not yet initialized. + + \li PathItem.Ready - The PathItem has finished processing. + + \li PathItem.Processing - The path is being processed. + + \endlist + */ + +QQuickPathItem::Status QQuickPathItem::status() const +{ + Q_D(const QQuickPathItem); + return d->status; +} + +static QQuickVisualPath *vpe_at(QQmlListProperty<QQuickVisualPath> *property, int index) +{ + QQuickPathItemPrivate *d = QQuickPathItemPrivate::get(static_cast<QQuickPathItem *>(property->object)); + return d->qmlData.vp.at(index); +} + +static void vpe_append(QQmlListProperty<QQuickVisualPath> *property, QQuickVisualPath *obj) +{ + QQuickPathItem *item = static_cast<QQuickPathItem *>(property->object); + QQuickPathItemPrivate *d = QQuickPathItemPrivate::get(item); + d->qmlData.vp.append(obj); + + if (d->componentComplete) { + QObject::connect(obj, SIGNAL(changed()), item, SLOT(_q_visualPathChanged())); + d->_q_visualPathChanged(); + } +} + +static int vpe_count(QQmlListProperty<QQuickVisualPath> *property) +{ + QQuickPathItemPrivate *d = QQuickPathItemPrivate::get(static_cast<QQuickPathItem *>(property->object)); + return d->qmlData.vp.count(); +} + +static void vpe_clear(QQmlListProperty<QQuickVisualPath> *property) +{ + QQuickPathItem *item = static_cast<QQuickPathItem *>(property->object); + QQuickPathItemPrivate *d = QQuickPathItemPrivate::get(item); + + for (QQuickVisualPath *p : d->qmlData.vp) + QObject::disconnect(p, SIGNAL(changed()), item, SLOT(_q_visualPathChanged())); + + d->qmlData.vp.clear(); + + if (d->componentComplete) + d->_q_visualPathChanged(); +} + +/*! + \qmlproperty list<VisualPath> QtQuick::PathItem::elements + + This property holds the VisualPath objects that define the contents of the + PathItem. + + \default + */ + +QQmlListProperty<QQuickVisualPath> QQuickPathItem::elements() +{ + return QQmlListProperty<QQuickVisualPath>(this, + nullptr, + vpe_append, + vpe_count, + vpe_at, + vpe_clear); +} + +void QQuickPathItem::classBegin() +{ + Q_D(QQuickPathItem); + d->componentComplete = false; +} + +void QQuickPathItem::componentComplete() +{ + Q_D(QQuickPathItem); + d->componentComplete = true; + + for (QQuickVisualPath *p : d->qmlData.vp) + connect(p, SIGNAL(changed()), this, SLOT(_q_visualPathChanged())); + + d->_q_visualPathChanged(); +} + +void QQuickPathItem::updatePolish() +{ + Q_D(QQuickPathItem); + + if (!d->vpChanged) + return; + + d->vpChanged = false; + + if (!d->renderer) { + d->createRenderer(); + if (!d->renderer) + return; + emit rendererChanged(); + } + + // endSync() is where expensive calculations may happen (or get kicked off + // on worker threads), depending on the backend. Therefore do this only + // when the item is visible. + if (isVisible()) + d->sync(); + + update(); +} + +void QQuickPathItem::itemChange(ItemChange change, const ItemChangeData &data) +{ + Q_D(QQuickPathItem); + + // sync may have been deferred; do it now if the item became visible + if (change == ItemVisibleHasChanged && data.boolValue) + d->_q_visualPathChanged(); + + QQuickItem::itemChange(change, data); +} + +QSGNode *QQuickPathItem::updatePaintNode(QSGNode *node, UpdatePaintNodeData *) +{ + // Called on the render thread, with the gui thread blocked. We can now + // safely access gui thread data. + + Q_D(QQuickPathItem); + if (d->renderer) { + if (!node) + node = d->createNode(); + d->renderer->updateNode(); + } + return node; +} + +// the renderer object lives on the gui thread +void QQuickPathItemPrivate::createRenderer() +{ + Q_Q(QQuickPathItem); + QSGRendererInterface *ri = q->window()->rendererInterface(); + if (!ri) + return; + + switch (ri->graphicsApi()) { +#ifndef QT_NO_OPENGL + case QSGRendererInterface::OpenGL: + if (enableVendorExts && QQuickPathItemNvprRenderNode::isSupported()) { + rendererType = QQuickPathItem::NvprRenderer; + renderer = new QQuickPathItemNvprRenderer; + } else { + rendererType = QQuickPathItem::GeometryRenderer; + renderer = new QQuickPathItemGenericRenderer(q); + } + break; +#endif + case QSGRendererInterface::Software: + rendererType = QQuickPathItem::SoftwareRenderer; + renderer = new QQuickPathItemSoftwareRenderer; + break; + default: + qWarning("No path backend for this graphics API yet"); + break; + } +} + +// the node lives on the render thread +QSGNode *QQuickPathItemPrivate::createNode() +{ + Q_Q(QQuickPathItem); + QSGNode *node = nullptr; + if (!q->window()) + return node; + QSGRendererInterface *ri = q->window()->rendererInterface(); + if (!ri) + return node; + + switch (ri->graphicsApi()) { +#ifndef QT_NO_OPENGL + case QSGRendererInterface::OpenGL: + if (enableVendorExts && QQuickPathItemNvprRenderNode::isSupported()) { + node = new QQuickPathItemNvprRenderNode; + static_cast<QQuickPathItemNvprRenderer *>(renderer)->setNode( + static_cast<QQuickPathItemNvprRenderNode *>(node)); + } else { + node = new QQuickPathItemGenericNode; + static_cast<QQuickPathItemGenericRenderer *>(renderer)->setRootNode( + static_cast<QQuickPathItemGenericNode *>(node)); + } + break; +#endif + case QSGRendererInterface::Software: + node = new QQuickPathItemSoftwareRenderNode(q); + static_cast<QQuickPathItemSoftwareRenderer *>(renderer)->setNode( + static_cast<QQuickPathItemSoftwareRenderNode *>(node)); + break; + default: + qWarning("No path backend for this graphics API yet"); + break; + } + + return node; +} + +static void q_asyncPathItemReady(void *data) +{ + QQuickPathItemPrivate *self = static_cast<QQuickPathItemPrivate *>(data); + self->setStatus(QQuickPathItem::Ready); +} + +void QQuickPathItemPrivate::sync() +{ + const bool useAsync = async && renderer->flags().testFlag(QQuickAbstractPathRenderer::SupportsAsync); + if (useAsync) { + setStatus(QQuickPathItem::Processing); + renderer->setAsyncCallback(q_asyncPathItemReady, this); + } + + if (!jsData.isValid()) { + // Standard route: The path and stroke/fill parameters are provided via + // VisualPath and Path. + const int count = qmlData.vp.count(); + renderer->beginSync(count); + + for (int i = 0; i < count; ++i) { + QQuickVisualPath *p = qmlData.vp[i]; + int &dirty(QQuickVisualPathPrivate::get(p)->dirty); + + if (dirty & QQuickVisualPathPrivate::DirtyPath) + renderer->setPath(i, p->path()); + if (dirty & QQuickVisualPathPrivate::DirtyStrokeColor) + renderer->setStrokeColor(i, p->strokeColor()); + if (dirty & QQuickVisualPathPrivate::DirtyStrokeWidth) + renderer->setStrokeWidth(i, p->strokeWidth()); + if (dirty & QQuickVisualPathPrivate::DirtyFillColor) + renderer->setFillColor(i, p->fillColor()); + if (dirty & QQuickVisualPathPrivate::DirtyFillRule) + renderer->setFillRule(i, p->fillRule()); + if (dirty & QQuickVisualPathPrivate::DirtyStyle) { + renderer->setJoinStyle(i, p->joinStyle(), p->miterLimit()); + renderer->setCapStyle(i, p->capStyle()); + } + if (dirty & QQuickVisualPathPrivate::DirtyDash) + renderer->setStrokeStyle(i, p->strokeStyle(), p->dashOffset(), p->dashPattern()); + if (dirty & QQuickVisualPathPrivate::DirtyFillGradient) + renderer->setFillGradient(i, p->fillGradient()); + + dirty = 0; + } + + renderer->endSync(useAsync); + } else { + // Path and stroke/fill params provided from JavaScript. This avoids + // QObjects at the expense of not supporting changes afterwards. + const int count = jsData.paths.count(); + renderer->beginSync(count); + + for (int i = 0; i < count; ++i) { + renderer->setJSPath(i, jsData.paths[i]); + const QQuickPathItemStrokeFillParams sfp(jsData.sfp[i]); + renderer->setStrokeColor(i, sfp.strokeColor); + renderer->setStrokeWidth(i, sfp.strokeWidth); + renderer->setFillColor(i, sfp.fillColor); + renderer->setFillRule(i, sfp.fillRule); + renderer->setJoinStyle(i, sfp.joinStyle, sfp.miterLimit); + renderer->setCapStyle(i, sfp.capStyle); + renderer->setStrokeStyle(i, sfp.strokeStyle, sfp.dashOffset, sfp.dashPattern); + renderer->setFillGradient(i, sfp.fillGradient); + } + + renderer->endSync(useAsync); + } + + if (!useAsync) + setStatus(QQuickPathItem::Ready); +} + +// ***** gradient support ***** + +/*! + \qmltype PathGradientStop + \instantiates QQuickPathGradientStop + \inqmlmodule QtQuick + \ingroup qtquick-paths + \ingroup qtquick-views + \inherits Object + \brief Defines a color at a position in a gradient + \since 5.10 + */ + +QQuickPathGradientStop::QQuickPathGradientStop(QObject *parent) + : QObject(parent), + m_position(0), + m_color(Qt::black) +{ +} + +/*! + \qmlproperty real QtQuick::PathGradientStop::position + + The position and color properties describe the color used at a given + position in a gradient, as represented by a gradient stop. + + The default value is 0. + */ + +qreal QQuickPathGradientStop::position() const +{ + return m_position; +} + +void QQuickPathGradientStop::setPosition(qreal position) +{ + if (m_position != position) { + m_position = position; + if (QQuickPathGradient *grad = qobject_cast<QQuickPathGradient *>(parent())) + emit grad->updated(); + } +} + +/*! + \qmlproperty real QtQuick::PathGradientStop::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 value is \c black. + */ + +QColor QQuickPathGradientStop::color() const +{ + return m_color; +} + +void QQuickPathGradientStop::setColor(const QColor &color) +{ + if (m_color != color) { + m_color = color; + if (QQuickPathGradient *grad = qobject_cast<QQuickPathGradient *>(parent())) + emit grad->updated(); + } +} + +/*! + \qmltype PathGradient + \instantiates QQuickPathGradient + \inqmlmodule QtQuick + \ingroup qtquick-paths + \ingroup qtquick-views + \inherits Object + \brief Base type of PathItem fill gradients + \since 5.10 + + This is an abstract base class for gradients like PathLinearGradient and + cannot be created directly. + */ + +QQuickPathGradient::QQuickPathGradient(QObject *parent) + : QObject(parent), + m_spread(PadSpread) +{ +} + +int QQuickPathGradient::countStops(QQmlListProperty<QObject> *list) +{ + QQuickPathGradient *grad = qobject_cast<QQuickPathGradient *>(list->object); + Q_ASSERT(grad); + return grad->m_stops.count(); +} + +QObject *QQuickPathGradient::atStop(QQmlListProperty<QObject> *list, int index) +{ + QQuickPathGradient *grad = qobject_cast<QQuickPathGradient *>(list->object); + Q_ASSERT(grad); + return grad->m_stops.at(index); +} + +void QQuickPathGradient::appendStop(QQmlListProperty<QObject> *list, QObject *stop) +{ + QQuickPathGradientStop *sstop = qobject_cast<QQuickPathGradientStop *>(stop); + if (!sstop) { + qWarning("Gradient stop list only supports QQuickPathGradientStop elements"); + return; + } + QQuickPathGradient *grad = qobject_cast<QQuickPathGradient *>(list->object); + Q_ASSERT(grad); + sstop->setParent(grad); + grad->m_stops.append(sstop); +} + +/*! + \qmlproperty list<Object> QtQuick::PathGradient::stops + \default + + The list of PathGradientStop objects defining the colors at given positions + in the gradient. + */ + +QQmlListProperty<QObject> QQuickPathGradient::stops() +{ + return QQmlListProperty<QObject>(this, nullptr, + &QQuickPathGradient::appendStop, + &QQuickPathGradient::countStops, + &QQuickPathGradient::atStop, + nullptr); +} + +QGradientStops QQuickPathGradient::sortedGradientStops() const +{ + QGradientStops result; + for (int i = 0; i < m_stops.count(); ++i) { + QQuickPathGradientStop *s = static_cast<QQuickPathGradientStop *>(m_stops[i]); + int j = 0; + while (j < result.count() && result[j].first < s->position()) + ++j; + result.insert(j, QGradientStop(s->position(), s->color())); + } + return result; +} + +/*! + \qmlproperty enumeration QtQuick::PathGradient::spred + + Specifies how the area outside the gradient area should be filled. The + default value is PathGradient.PadSpread. + + \list + \li PathGradient.PadSpread - The area is filled with the closest stop color. + \li PathGradient.RepeatSpread - The gradient is repeated outside the gradient area. + \li PathGradient.ReflectSpread - The gradient is reflected outside the gradient area. + \endlist + */ + +QQuickPathGradient::SpreadMode QQuickPathGradient::spread() const +{ + return m_spread; +} + +void QQuickPathGradient::setSpread(SpreadMode mode) +{ + if (m_spread != mode) { + m_spread = mode; + emit spreadChanged(); + emit updated(); + } +} + +/*! + \qmltype PathLinearGradient + \instantiates QQuickPathLinearGradient + \inqmlmodule QtQuick + \ingroup qtquick-paths + \ingroup qtquick-views + \inherits PathGradient + \brief Linear gradient + \since 5.10 + + Linear gradients interpolate colors between start and end points. Outside + these points the gradient is either padded, reflected or repeated depending + on the spread type. + + \sa QLinearGradient + */ + +QQuickPathLinearGradient::QQuickPathLinearGradient(QObject *parent) + : QQuickPathGradient(parent) +{ +} + +/*! + \qmlproperty real QtQuick::PathLinearGradient::x1 + \qmlproperty real QtQuick::PathLinearGradient::y1 + \qmlproperty real QtQuick::PathLinearGradient::x2 + \qmlproperty real QtQuick::PathLinearGradient::y2 + + These properties define the start and end points between which color + interpolation occurs. By default both the stard and end points are set to + (0, 0). + */ + +qreal QQuickPathLinearGradient::x1() const +{ + return m_start.x(); +} + +void QQuickPathLinearGradient::setX1(qreal v) +{ + if (m_start.x() != v) { + m_start.setX(v); + emit x1Changed(); + emit updated(); + } +} + +qreal QQuickPathLinearGradient::y1() const +{ + return m_start.y(); +} + +void QQuickPathLinearGradient::setY1(qreal v) +{ + if (m_start.y() != v) { + m_start.setY(v); + emit y1Changed(); + emit updated(); + } +} + +qreal QQuickPathLinearGradient::x2() const +{ + return m_end.x(); +} + +void QQuickPathLinearGradient::setX2(qreal v) +{ + if (m_end.x() != v) { + m_end.setX(v); + emit x2Changed(); + emit updated(); + } +} + +qreal QQuickPathLinearGradient::y2() const +{ + return m_end.y(); +} + +void QQuickPathLinearGradient::setY2(qreal v) +{ + if (m_end.y() != v) { + m_end.setY(v); + emit y2Changed(); + emit updated(); + } +} + +#ifndef QT_NO_OPENGL + +// contexts sharing with each other get the same cache instance +class QQuickPathItemGradientCacheWrapper +{ +public: + QQuickPathItemGradientCache *get(QOpenGLContext *context) + { + return m_resource.value<QQuickPathItemGradientCache>(context); + } + +private: + QOpenGLMultiGroupSharedResource m_resource; +}; + +QQuickPathItemGradientCache *QQuickPathItemGradientCache::currentCache() +{ + static QQuickPathItemGradientCacheWrapper qt_path_gradient_caches; + return qt_path_gradient_caches.get(QOpenGLContext::currentContext()); +} + +// let QOpenGLContext manage the lifetime of the cached textures +QQuickPathItemGradientCache::~QQuickPathItemGradientCache() +{ + m_cache.clear(); +} + +void QQuickPathItemGradientCache::invalidateResource() +{ + m_cache.clear(); +} + +void QQuickPathItemGradientCache::freeResource(QOpenGLContext *) +{ + qDeleteAll(m_cache); + m_cache.clear(); +} + +static void generateGradientColorTable(const QQuickPathItemGradientCache::GradientDesc &gradient, + uint *colorTable, int size, float opacity) +{ + int pos = 0; + const QGradientStops &s = gradient.stops; + const bool colorInterpolation = true; + + uint alpha = qRound(opacity * 256); + uint current_color = ARGB_COMBINE_ALPHA(s[0].second.rgba(), alpha); + qreal incr = 1.0 / qreal(size); + qreal fpos = 1.5 * incr; + colorTable[pos++] = ARGB2RGBA(qPremultiply(current_color)); + + while (fpos <= s.first().first) { + colorTable[pos] = colorTable[pos - 1]; + pos++; + fpos += incr; + } + + if (colorInterpolation) + current_color = qPremultiply(current_color); + + const int sLast = s.size() - 1; + for (int i = 0; i < sLast; ++i) { + qreal delta = 1/(s[i+1].first - s[i].first); + uint next_color = ARGB_COMBINE_ALPHA(s[i + 1].second.rgba(), alpha); + if (colorInterpolation) + next_color = qPremultiply(next_color); + + while (fpos < s[i+1].first && pos < size) { + int dist = int(256 * ((fpos - s[i].first) * delta)); + int idist = 256 - dist; + if (colorInterpolation) + colorTable[pos] = ARGB2RGBA(INTERPOLATE_PIXEL_256(current_color, idist, next_color, dist)); + else + colorTable[pos] = ARGB2RGBA(qPremultiply(INTERPOLATE_PIXEL_256(current_color, idist, next_color, dist))); + ++pos; + fpos += incr; + } + current_color = next_color; + } + + Q_ASSERT(s.size() > 0); + + uint last_color = ARGB2RGBA(qPremultiply(ARGB_COMBINE_ALPHA(s[sLast].second.rgba(), alpha))); + for ( ; pos < size; ++pos) + colorTable[pos] = last_color; + + colorTable[size-1] = last_color; +} + +QSGTexture *QQuickPathItemGradientCache::get(const GradientDesc &grad) +{ + QSGPlainTexture *tx = m_cache[grad]; + if (!tx) { + QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions(); + GLuint id; + f->glGenTextures(1, &id); + f->glBindTexture(GL_TEXTURE_2D, id); + static const uint W = 1024; // texture size is 1024x1 + uint buf[W]; + generateGradientColorTable(grad, buf, W, 1.0f); + f->glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, W, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, buf); + tx = new QSGPlainTexture; + tx->setTextureId(id); + switch (grad.spread) { + case QQuickPathGradient::PadSpread: + tx->setHorizontalWrapMode(QSGTexture::ClampToEdge); + tx->setVerticalWrapMode(QSGTexture::ClampToEdge); + break; + case QQuickPathGradient::RepeatSpread: + tx->setHorizontalWrapMode(QSGTexture::Repeat); + tx->setVerticalWrapMode(QSGTexture::Repeat); + break; + case QQuickPathGradient::ReflectSpread: + tx->setHorizontalWrapMode(QSGTexture::MirroredRepeat); + tx->setVerticalWrapMode(QSGTexture::MirroredRepeat); + break; + default: + qWarning("Unknown gradient spread mode %d", grad.spread); + break; + } + m_cache[grad] = tx; + } + return tx; +} + +#endif // QT_NO_OPENGL + +// ***** JS-based alternative for creating static paths, (mostly) without QObjects ***** + +class QQuickPathItemJSEngineData : public QV8Engine::Deletable +{ +public: + QQuickPathItemJSEngineData(QV4::ExecutionEngine *engine); + + QV4::PersistentValue pathProto; + QV4::PersistentValue strokeFillParamsProto; +}; + +V4_DEFINE_EXTENSION(QQuickPathItemJSEngineData, engineData) + +namespace QV4 { +namespace Heap { + +struct QQuickPathItemJSPathPrototype : Object { + void init() { Object::init(); } +}; + +struct QQuickPathItemJSPath : Object { + void init() { Object::init(); } + QQuickPathItemPathObject *obj; +}; + +struct QQuickPathItemJSStrokeFillParamsPrototype : Object { + void init() { Object::init(); } +}; + +struct QQuickPathItemJSStrokeFillParams : Object { + void init() { Object::init(); } + QQuickPathItemStrokeFillParamsObject *obj; +}; + +} // namespace Heap +} // namespace QV4 + +struct QQuickPathItemJSPathPrototype : public QV4::Object +{ + V4_OBJECT2(QQuickPathItemJSPathPrototype, QV4::Object) +public: + static QV4::Heap::QQuickPathItemJSPathPrototype *create(QV4::ExecutionEngine *engine) + { + QV4::Scope scope(engine); + auto obj = engine->memoryManager->allocObject<QQuickPathItemJSPathPrototype>(); + QV4::Scoped<QQuickPathItemJSPathPrototype> o(scope, obj); + + o->defineDefaultProperty(QStringLiteral("clear"), method_clear, 0); + o->defineDefaultProperty(QStringLiteral("moveTo"), method_moveTo, 0); + o->defineDefaultProperty(QStringLiteral("lineTo"), method_lineTo, 0); + o->defineDefaultProperty(QStringLiteral("quadTo"), method_quadTo, 0); + o->defineDefaultProperty(QStringLiteral("cubicTo"), method_cubicTo, 0); + o->defineDefaultProperty(QStringLiteral("arcTo"), method_arcTo, 0); + + return o->d(); + } + + static void method_clear(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_moveTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_lineTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_quadTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_cubicTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_arcTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); +}; + +DEFINE_OBJECT_VTABLE(QQuickPathItemJSPathPrototype); + +struct QQuickPathItemJSStrokeFillParamsPrototype : public QV4::Object +{ + V4_OBJECT2(QQuickPathItemJSStrokeFillParamsPrototype, QV4::Object) +public: + static QV4::Heap::QQuickPathItemJSStrokeFillParamsPrototype *create(QV4::ExecutionEngine *engine) + { + QV4::Scope scope(engine); + auto obj = engine->memoryManager->allocObject<QQuickPathItemJSStrokeFillParamsPrototype>(); + QV4::Scoped<QQuickPathItemJSStrokeFillParamsPrototype> o(scope, obj); + + o->defineDefaultProperty(QStringLiteral("clear"), method_clear, 0); + + return o->d(); + } + + static void method_clear(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); +}; + +DEFINE_OBJECT_VTABLE(QQuickPathItemJSStrokeFillParamsPrototype); + +struct QQuickPathItemJSPath : public QV4::Object +{ + V4_OBJECT2(QQuickPathItemJSPath, QV4::Object) +}; + +DEFINE_OBJECT_VTABLE(QQuickPathItemJSPath); + +struct QQuickPathItemJSStrokeFillParams : public QV4::Object +{ + V4_OBJECT2(QQuickPathItemJSStrokeFillParams, QV4::Object) + + static void method_get_strokeColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_strokeColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_strokeWidth(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_strokeWidth(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_fillColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_fillColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_fillRule(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_fillRule(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_joinStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_joinStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_miterLimit(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_miterLimit(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_capStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_capStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_strokeStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_strokeStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_dashOffset(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_dashOffset(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_dashPattern(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_dashPattern(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_get_fillGradient(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); + static void method_set_fillGradient(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData); +}; + +DEFINE_OBJECT_VTABLE(QQuickPathItemJSStrokeFillParams); + +void QQuickPathItemJSPathPrototype::method_clear(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSPath> r(scope, callData->thisObject.as<QQuickPathItemJSPath>()); + + r->d()->obj->clear(); + + scope.result = callData->thisObject.asReturnedValue(); +} + +void QQuickPathItemJSPathPrototype::method_moveTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSPath> r(scope, callData->thisObject.as<QQuickPathItemJSPath>()); + + if (callData->argc >= 2) { + QQuickPathItemPathObject *p = r->d()->obj; + p->path.cmd.append(QQuickPathItemPath::MoveTo); + p->path.coords.append(callData->args[0].toNumber()); + p->path.coords.append(callData->args[1].toNumber()); + } + + scope.result = callData->thisObject.asReturnedValue(); +} + +void QQuickPathItemJSPathPrototype::method_lineTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSPath> r(scope, callData->thisObject.as<QQuickPathItemJSPath>()); + + if (callData->argc >= 2) { + QQuickPathItemPathObject *p = r->d()->obj; + p->path.cmd.append(QQuickPathItemPath::LineTo); + p->path.coords.append(callData->args[0].toNumber()); + p->path.coords.append(callData->args[1].toNumber()); + } + + scope.result = callData->thisObject.asReturnedValue(); +} + +void QQuickPathItemJSPathPrototype::method_quadTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSPath> r(scope, callData->thisObject.as<QQuickPathItemJSPath>()); + + if (callData->argc >= 4) { + QQuickPathItemPathObject *p = r->d()->obj; + p->path.cmd.append(QQuickPathItemPath::QuadTo); + const QV4::Value *v = callData->args; + p->path.coords.append(v[0].toNumber()); // cx + p->path.coords.append(v[1].toNumber()); // cy + p->path.coords.append(v[2].toNumber()); // x + p->path.coords.append(v[3].toNumber()); // y + } + + scope.result = callData->thisObject.asReturnedValue(); +} + +void QQuickPathItemJSPathPrototype::method_cubicTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSPath> r(scope, callData->thisObject.as<QQuickPathItemJSPath>()); + + if (callData->argc >= 6) { + QQuickPathItemPathObject *p = r->d()->obj; + p->path.cmd.append(QQuickPathItemPath::CubicTo); + const QV4::Value *v = callData->args; + p->path.coords.append(v[0].toNumber()); // c1x + p->path.coords.append(v[1].toNumber()); // c1y + p->path.coords.append(v[2].toNumber()); // c2x + p->path.coords.append(v[3].toNumber()); // c2y + p->path.coords.append(v[4].toNumber()); // x + p->path.coords.append(v[5].toNumber()); // y + } + + scope.result = callData->thisObject.asReturnedValue(); +} + +void QQuickPathItemJSPathPrototype::method_arcTo(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSPath> r(scope, callData->thisObject.as<QQuickPathItemJSPath>()); + + if (callData->argc >= 7) { + QQuickPathItemPathObject *p = r->d()->obj; + p->path.cmd.append(QQuickPathItemPath::ArcTo); + const QV4::Value *v = callData->args; + p->path.coords.append(v[0].toNumber()); // radiusX + p->path.coords.append(v[1].toNumber()); // radiusY + p->path.coords.append(v[2].toNumber()); // xAxisRotation + p->path.coords.append(v[3].toNumber()); // x + p->path.coords.append(v[4].toNumber()); // y + p->path.coords.append(v[5].toNumber()); // sweepFlag + p->path.coords.append(v[6].toNumber()); // largeArc + } + + scope.result = callData->thisObject.asReturnedValue(); +} + +void QQuickPathItemJSStrokeFillParamsPrototype::method_clear(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + r->d()->obj->clear(); + + scope.result = callData->thisObject.asReturnedValue(); +} + +Q_QUICK_PRIVATE_EXPORT QColor qt_color_from_string(const QV4::Value &name); // qquickcontext2d.cpp + +static inline QString qt_color_string(const QColor &color) +{ + if (color.alpha() == 255) + return color.name(); + QString alphaString = QString::number(color.alphaF(), 'f'); + while (alphaString.endsWith(QLatin1Char('0'))) + alphaString.chop(1); + if (alphaString.endsWith(QLatin1Char('.'))) + alphaString += QLatin1Char('0'); + return QString::fromLatin1("rgba(%1, %2, %3, %4)").arg(color.red()).arg(color.green()).arg(color.blue()).arg(alphaString); +} + +void QQuickPathItemJSStrokeFillParams::method_get_strokeColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = QV4::Encode(scope.engine->newString(qt_color_string(r->d()->obj->sfp.strokeColor))); +} + +void QQuickPathItemJSStrokeFillParams::method_set_strokeColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isString()) + r->d()->obj->sfp.strokeColor = qt_color_from_string(value); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_strokeWidth(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.strokeWidth); +} + +void QQuickPathItemJSStrokeFillParams::method_set_strokeWidth(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + r->d()->obj->sfp.strokeWidth = value->toNumber(); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_fillColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = QV4::Encode(scope.engine->newString(qt_color_string(r->d()->obj->sfp.fillColor))); +} + +void QQuickPathItemJSStrokeFillParams::method_set_fillColor(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isString()) + r->d()->obj->sfp.fillColor = qt_color_from_string(value); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_fillRule(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.fillRule); +} + +void QQuickPathItemJSStrokeFillParams::method_set_fillRule(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isInt32()) + r->d()->obj->sfp.fillRule = QQuickVisualPath::FillRule(value->integerValue()); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_joinStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.joinStyle); +} + +void QQuickPathItemJSStrokeFillParams::method_set_joinStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isInt32()) + r->d()->obj->sfp.joinStyle = QQuickVisualPath::JoinStyle(value->integerValue()); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_miterLimit(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.miterLimit); +} + +void QQuickPathItemJSStrokeFillParams::method_set_miterLimit(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + r->d()->obj->sfp.miterLimit = value->toNumber(); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_capStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.capStyle); +} + +void QQuickPathItemJSStrokeFillParams::method_set_capStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isInt32()) + r->d()->obj->sfp.capStyle = QQuickVisualPath::CapStyle(value->integerValue()); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_strokeStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.strokeStyle); +} + +void QQuickPathItemJSStrokeFillParams::method_set_strokeStyle(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isInt32()) + r->d()->obj->sfp.strokeStyle = QQuickVisualPath::StrokeStyle(value->integerValue()); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_dashOffset(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = scope.engine->fromVariant(r->d()->obj->sfp.dashOffset); +} + +void QQuickPathItemJSStrokeFillParams::method_set_dashOffset(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + r->d()->obj->sfp.dashOffset = value->toNumber(); + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_dashPattern(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedArrayObject a(scope, scope.engine->newArrayObject()); + QQuickPathItemStrokeFillParamsObject *p = r->d()->obj; + a->arrayReserve(p->sfp.dashPattern.count()); + QV4::ScopedValue v(scope); + for (int i = 0; i < p->sfp.dashPattern.count(); ++i) + a->arrayPut(i, (v = scope.engine->fromVariant(p->sfp.dashPattern[i]))); + a->setArrayLengthUnchecked(p->sfp.dashPattern.count()); + + scope.result = a.asReturnedValue(); +} + +void QQuickPathItemJSStrokeFillParams::method_set_dashPattern(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + if (value->isObject()) { + QV4::Scoped<QV4::ArrayObject> ao(scope, value); + if (!!ao) { + QQuickPathItemStrokeFillParamsObject *p = r->d()->obj; + p->sfp.dashPattern.resize(ao->getLength()); + QV4::ScopedValue val(scope); + for (int i = 0; i < p->sfp.dashPattern.count(); ++i) { + val = ao->getIndexed(i); + p->sfp.dashPattern[i] = val->toNumber(); + } + } + } + + scope.result = QV4::Encode::undefined(); +} + +void QQuickPathItemJSStrokeFillParams::method_get_fillGradient(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + scope.result = r->d()->obj->v4fillGradient.value(); +} + +void QQuickPathItemJSStrokeFillParams::method_set_fillGradient(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData) +{ + QV4::Scoped<QQuickPathItemJSStrokeFillParams> r(scope, callData->thisObject.as<QQuickPathItemJSStrokeFillParams>()); + + QV4::ScopedValue value(scope, callData->argument(0)); + QV4::Scoped<QV4::QObjectWrapper> qobjectWrapper(scope, value); + if (!!qobjectWrapper) { + if (QQuickPathGradient *grad = qobject_cast<QQuickPathGradient *>(qobjectWrapper->object())) { + r->d()->obj->v4fillGradient.set(scope.engine, value); + r->d()->obj->sfp.fillGradient = grad; + } + } else { + r->d()->obj->v4fillGradient.set(scope.engine, nullptr); + r->d()->obj->sfp.fillGradient = nullptr; + } + + scope.result = QV4::Encode::undefined(); +} + +QQuickPathItemJSEngineData::QQuickPathItemJSEngineData(QV4::ExecutionEngine *v4) +{ + QV4::Scope scope(v4); + + QV4::ScopedObject proto(scope, QQuickPathItemJSPathPrototype::create(v4)); + pathProto = proto; + + proto = QV4::ScopedObject(scope, QQuickPathItemJSStrokeFillParamsPrototype::create(v4)); + + proto->defineAccessorProperty(QStringLiteral("strokeColor"), + QQuickPathItemJSStrokeFillParams::method_get_strokeColor, + QQuickPathItemJSStrokeFillParams::method_set_strokeColor); + proto->defineAccessorProperty(QStringLiteral("strokeWidth"), + QQuickPathItemJSStrokeFillParams::method_get_strokeWidth, + QQuickPathItemJSStrokeFillParams::method_set_strokeWidth); + proto->defineAccessorProperty(QStringLiteral("fillColor"), + QQuickPathItemJSStrokeFillParams::method_get_fillColor, + QQuickPathItemJSStrokeFillParams::method_set_fillColor); + proto->defineAccessorProperty(QStringLiteral("fillRule"), + QQuickPathItemJSStrokeFillParams::method_get_fillRule, + QQuickPathItemJSStrokeFillParams::method_set_fillRule); + proto->defineAccessorProperty(QStringLiteral("joinStyle"), + QQuickPathItemJSStrokeFillParams::method_get_joinStyle, + QQuickPathItemJSStrokeFillParams::method_set_joinStyle); + proto->defineAccessorProperty(QStringLiteral("miterLimit"), + QQuickPathItemJSStrokeFillParams::method_get_miterLimit, + QQuickPathItemJSStrokeFillParams::method_set_miterLimit); + proto->defineAccessorProperty(QStringLiteral("capStyle"), + QQuickPathItemJSStrokeFillParams::method_get_capStyle, + QQuickPathItemJSStrokeFillParams::method_set_capStyle); + proto->defineAccessorProperty(QStringLiteral("strokeStyle"), + QQuickPathItemJSStrokeFillParams::method_get_strokeStyle, + QQuickPathItemJSStrokeFillParams::method_set_strokeStyle); + proto->defineAccessorProperty(QStringLiteral("dashOffset"), + QQuickPathItemJSStrokeFillParams::method_get_dashOffset, + QQuickPathItemJSStrokeFillParams::method_set_dashOffset); + proto->defineAccessorProperty(QStringLiteral("dashPattern"), + QQuickPathItemJSStrokeFillParams::method_get_dashPattern, + QQuickPathItemJSStrokeFillParams::method_set_dashPattern); + proto->defineAccessorProperty(QStringLiteral("fillGradient"), + QQuickPathItemJSStrokeFillParams::method_get_fillGradient, + QQuickPathItemJSStrokeFillParams::method_set_fillGradient); + + strokeFillParamsProto = proto; +} + +void QQuickPathItemPathObject::setV4Engine(QV4::ExecutionEngine *engine) +{ + QQuickPathItemJSEngineData *ed = engineData(engine); + QV4::Scope scope(engine); + QV4::Scoped<QQuickPathItemJSPath> wrapper(scope, engine->memoryManager->allocObject<QQuickPathItemJSPath>()); + QV4::ScopedObject p(scope, ed->pathProto.value()); + wrapper->setPrototype(p); + wrapper->d()->obj = this; + m_v4value = wrapper; +} + +/*! + \qmltype JSPath + \inqmlmodule QtQuick + \ingroup qtquick-path + \brief Describes a path via a JavaScript API + */ + +/*! + \qmlmethod void QtQuick::JSPath::moveTo(x, y) + + Moves the path's position to the absolute position specified by (\a x, \a y). + */ + +/*! + \qmlmethod void QtQuick::JSPath::lineTo(x, y) + + Defines a straight line to the absolute position specified by (\a x, \a y). + */ + +/*! + \qmlmethod void QtQuick::JSPath::quadTo(cx, cy, x, y) + + Defines a quadratic Bezier curve with a control point (\a cx, \a cy) and an + end point of (\a x, \a y). + */ + +/*! + \qmlmethod void QtQuick::JSPath::cubicTo(c1x, c1y, c2x, c2y, x, y) + + Defines a cubic Bezier curve with two control points (\a c1x, \a c1y) and + (\a c2x, \a c2y), and an end point of (\a x, \a y). + */ + +/*! + \qmlmethod void QtQuick::JSPath::arcTo(radiusX, radiusY, xAxisRotation, x, y, sweepFlag, largeArc) + + Defines an elliptical arc, following the elliptical arc command in SVG. See + \l{https://www.w3.org/TR/SVG/paths.html#PathDataEllipticalArcCommands}{the + SVG path specification} for details on the parameters. + */ + +/*! + \qmlmethod void QtQuick::JSPath::clear() + + Clears the path object removing all path elements. This is more lightweight + than creating a new JSPath object. + */ + +void QQuickPathItemPathObject::clear() +{ + path = QQuickPathItemPath(); +} + +/*! + \qmltype StrokeFillParams + \inqmlmodule QtQuick + \ingroup qtquick-path + \brief Describes stroke and fill parameters via a JavaScript API + + The properties of StrokeFillParams objects correspond 1:1 to VisualPath + properties. The possible values for enumerations are the same as well, for + example: + + \code + sfp.strokeStyle = VisualPath.DashLine; + sfp.capStyle = VisualPath.RoundCap; + \endcode + */ + +/*! + \qmlproperty color QtQuick::StrokeFillParams::strokeColor + */ + +/*! + \qmlproperty real QtQuick::StrokeFillParams::strokeWidth + */ + +/*! + \qmlproperty color QtQuick::StrokeFillParams::fillColor + */ + +/*! + \qmlproperty enumeration QtQuick::StrokeFillParams::fillRule + */ + +/*! + \qmlproperty enumeration QtQuick::StrokeFillParams::joinStyle + */ + +/*! + \qmlproperty int QtQuick::StrokeFillParams::miterLimit + */ + +/*! + \qmlproperty enumeration QtQuick::StrokeFillParams::capStyle + */ + +/*! + \qmlproperty enumeration QtQuick::StrokeFillParams::strokeStyle + */ + +/*! + \qmlproperty real QtQuick::StrokeFillParams::dashOffset + */ + +/*! + \qmlproperty list<real> QtQuick::StrokeFillParams::dashPattern + + The dash pattern can be specified using JavaScript arrays. + + \code + sfp.dashPattern = [ 4, 2 ]; + \endcode + */ + +/*! + \qmlproperty object QtQuick::StrokeFillParams::fillGradient + + Sets the fill gradient. The default value is null. Gradients cannot be + created from JavaScript. Instead, reference a PathLinearGradient or other + item by id. + + \code + PathLinearGradient { id: grad; ... } + ... + sfp.fillGradient = grad; + \endcode + */ + +/*! + \qmlmethod void QtQuick::StrokeFillParams::clear() + + Resets all values to their defaults. This is more lightweight than creating + a new StrokeFillParams object. + */ + +void QQuickPathItemStrokeFillParamsObject::clear() +{ + sfp = QQuickPathItemStrokeFillParams(); + if (!v4fillGradient.isNullOrUndefined()) + v4fillGradient.set(v4fillGradient.engine(), nullptr); +} + +void QQuickPathItemStrokeFillParamsObject::setV4Engine(QV4::ExecutionEngine *engine) +{ + QQuickPathItemJSEngineData *ed = engineData(engine); + QV4::Scope scope(engine); + QV4::Scoped<QQuickPathItemJSStrokeFillParams> wrapper(scope, engine->memoryManager->allocObject<QQuickPathItemJSStrokeFillParams>()); + QV4::ScopedObject p(scope, ed->strokeFillParamsProto.value()); + wrapper->setPrototype(p); + wrapper->d()->obj = this; + m_v4value = wrapper; +} + +/*! + \qmlmethod JSPath QtQuick::PathItem::newPath() + + Creates and returns a new object that describes a path and offers a + JavaScript API. Paired with a stroke-fill parameter object it is + equivalent to a VisualPath. + + The following two snippets are equivalent when it comes to the end result: + + \code + var p = pathItem.newPath(); + var sfp = pathItem.newStrokeFillParams(); + sfp.fillColor = "white"; + sfp.strokeColor = "black"; + sfp.strokeWidth = 0.172; + p.moveTo(-122.304, 84.285); + p.cubicTo(-122.304, 84.285, -122.203, 86.179, -123.027, 86.16); + pathItem.appendVisualPath(p, sfp); + \endcode + + \code + PathItem { + VisualPath { + fillColor: "white" + strokeColor: "black" + strokeWidth: 0.172 + Path { + startX: -122.304; startY: 84.285 + PathCubic { control1X: -122.304; control1Y: 84.285; control2X: -122.203; control2Y: 86.179; x: -123.027; y: 86.16 } + } + } + } + \endcode + + The latter offers a full declarative API, with the possibility to binding + to and animating properties, while the former uses less resources due to + greatly reducing the number of QObject instances created. +*/ + +void QQuickPathItem::newPath(QQmlV4Function *args) +{ + QQuickPathItemPathObject *obj = new QQuickPathItemPathObject(this); + obj->setV4Engine(QQmlEnginePrivate::get(qmlEngine(this))->v4engine()); + args->setReturnValue(obj->v4value()); +} + +/*! + \qmlmethod StrokeFillParams QtQuick::PathItem::newStrokeFillParams() + + Creates and returns a new object that describes stroke and fill parameters + and offers a JavaScript API. Paired with a path object it is equivalent to + a VisualPath. + */ + +void QQuickPathItem::newStrokeFillParams(QQmlV4Function *args) +{ + QQuickPathItemStrokeFillParamsObject *obj = new QQuickPathItemStrokeFillParamsObject(this); + obj->setV4Engine(QQmlEnginePrivate::get(qmlEngine(this))->v4engine()); + args->setReturnValue(obj->v4value()); +} + +/*! + \qmlmethod void QtQuick::PathItem::clearVisualPaths() + + Clears the list of visual paths. + + \note This applies only to path and stroke-fill parameter objects registered + via appendVisualPaths(). + */ + +void QQuickPathItem::clearVisualPaths(QQmlV4Function *args) +{ + Q_UNUSED(args); + Q_D(QQuickPathItem); + d->jsData.paths.clear(); + d->jsData.sfp.clear(); +} + +/*! + \qmlmethod void QtQuick::PathItem::commitVisualPaths() + + Updates the PathItem. + + In order to avoid rendering a half-prepared PathItem, calling + PathItem.appendVisualPath() does not trigger any processing. Instead, + applications must call this function when all path and stroke-fill + parameter objects are registered. + */ + +void QQuickPathItem::commitVisualPaths(QQmlV4Function *args) +{ + Q_UNUSED(args); + Q_D(QQuickPathItem); + d->_q_visualPathChanged(); +} + +/*! + \qmlmethod void QtQuick::PathItem::appendVisualPath(object path, object strokeFillParams) + + Adds the visual path compoes of \a path and \a strokeFillParams into the + PathItem. + + \note The declarative and imprative (JavaScript) APIs of PathItem use + independent data structures. Calling this function has no effect on the + PathItem.elements property and vice versa. Once this function is called, + the PathItem will only consider the data registered via this function and + will ignore the declarative elements property. + */ + +void QQuickPathItem::appendVisualPath(QQmlV4Function *args) +{ + if (args->length() < 2) + return; + + Q_D(QQuickPathItem); + QV4::Scope scope(args->v4engine()); + QV4::Scoped<QQuickPathItemJSPath> jsp(scope, (*args)[0]); + QV4::Scoped<QQuickPathItemJSStrokeFillParams> jssfp(scope, (*args)[1]); + + const QQuickPathItemPath &path(jsp->d()->obj->path); + const QQuickPathItemStrokeFillParams &sfp(jssfp->d()->obj->sfp); + + d->jsData.paths.append(path); + d->jsData.sfp.append(sfp); +} + +QT_END_NAMESPACE + +#include "moc_qquickpathitem_p.cpp" |