diff options
Diffstat (limited to 'src/quick/util/qquickpath.cpp')
| -rw-r--r-- | src/quick/util/qquickpath.cpp | 229 |
1 files changed, 226 insertions, 3 deletions
diff --git a/src/quick/util/qquickpath.cpp b/src/quick/util/qquickpath.cpp index 24b22f00c1..74ee52b1d3 100644 --- a/src/quick/util/qquickpath.cpp +++ b/src/quick/util/qquickpath.cpp @@ -301,6 +301,8 @@ void QQuickPath::pathElements_append(QQmlListProperty<QQuickPathElement> *proper QQuickCurve *curve = qobject_cast<QQuickCurve *>(pathElement); if (curve) d->_pathCurves.append(curve); + else if (QQuickPathText *text = qobject_cast<QQuickPathText *>(pathElement)) + d->_pathTexts.append(text); else { QQuickPathAttribute *attribute = qobject_cast<QQuickPathAttribute *>(pathElement); if (attribute && !d->_attributes.contains(attribute->name())) @@ -329,6 +331,7 @@ void QQuickPath::pathElements_clear(QQmlListProperty<QQuickPathElement> *propert d->_pathElements.clear(); d->_pathCurves.clear(); d->_pointCache.clear(); + d->_pathTexts.clear(); } void QQuickPath::interpolate(int idx, const QString &name, qreal value) @@ -478,6 +481,8 @@ QPainterPath QQuickPath::createPath(const QPointF &startPoint, const QPointF &en point.values[percentString] = percent->value(); interpolate(attributePoints, attributePoints.count() - 1, percentString, percent->value()); usesPercent = true; + } else if (QQuickPathText *text = qobject_cast<QQuickPathText *>(pathElement)) { + text->addToPath(path); } } @@ -547,6 +552,9 @@ QPainterPath QQuickPath::createShapePath(const QPointF &startPoint, const QPoint ++index; } + for (QQuickPathText *text : qAsConst(d->_pathTexts)) + text->addToPath(path); + if (closed) { QPointF end = path.currentPosition(); *closed = startX == end.x() && startY == end.y(); @@ -593,6 +601,8 @@ void QQuickPath::gatherAttributes() for (QQuickPathElement *pathElement : qAsConst(d->_pathElements)) { if (QQuickCurve *curve = qobject_cast<QQuickCurve *>(pathElement)) d->_pathCurves.append(curve); + else if (QQuickPathText *text = qobject_cast<QQuickPathText *>(pathElement)) + d->_pathTexts.append(text); else if (QQuickPathAttribute *attribute = qobject_cast<QQuickPathAttribute *>(pathElement)) attributes.insert(attribute->name()); } @@ -2415,7 +2425,7 @@ QVariant QQuickPathPolyline::path() const void QQuickPathPolyline::setPath(const QVariant &path) { - if (path.type() == QVariant::PolygonF) { + if (path.userType() == QMetaType::QPolygonF) { setPath(path.value<QPolygonF>()); } else if (path.canConvert<QVector<QPointF>>()) { setPath(path.value<QVector<QPointF>>()); @@ -2431,7 +2441,7 @@ void QQuickPathPolyline::setPath(const QVariant &path) pathList.append(v.toPointF()); setPath(pathList); } else { - qWarning() << "PathPolyline: path of type" << path.type() << "not supported"; + qWarning() << "PathPolyline: path of type" << path.userType() << "not supported"; } } @@ -2583,7 +2593,7 @@ void QQuickPathMultiline::setPaths(const QVariant &paths) } setPaths(pathsList); } else { - qWarning() << "PathMultiline: paths of type" << paths.type() << "not supported"; + qWarning() << "PathMultiline: paths of type" << paths.userType() << "not supported"; setPaths(QVector<QVector<QPointF>>()); } } @@ -2619,6 +2629,219 @@ void QQuickPathMultiline::addToPath(QPainterPath &path, const QQuickPathData &) } } +/*! + \qmltype PathText + \instantiates QQuickPathText + \inqmlmodule QtQuick + \ingroup qtquick-animation-paths + \brief Defines a string in a specified font. + \since QtQuick 2.15 + + This element defines the shape of a specified string in a specified font. The text's + baseline will be translated to the x and y coordinates, and the outlines from the font + will be added to the path accordingly. + + \qml + PathText { + x: 0 + y: font.pixelSize + font.family: "Arial" + font.pixelSize: 100 + text: "Foobar" + } + \endqml + + \sa Path, QPainterPath::setFillRule, PathPolyline, PathQuad, PathCubic, PathArc, PathAngleArc, PathCurve, PathSvg, PathMove +*/ + +/*! + \qmlproperty real QtQuick::PathText::x + + The horizontal position of the PathText's baseline. +*/ + +/*! + \qmlproperty real QtQuick::PathText::y + + The vertical position of the PathText's baseline. + + \note This property refers to the position of the baseline of the text, not the top of its bounding box. This may + cause some confusion, e.g. when using the PathText with Qt Quick Shapes. See \l FontMetrics for information on how to + get the ascent of a font, which can be used to translate the text into the expected position. +*/ + +/*! + \qmlproperty string QtQuick::PathText::text + + The text for which this PathText should contain the outlines. +*/ + +/*! + \qmlproperty string QtQuick::PathText::font.family + + Sets the family name of the font. + + The family name is case insensitive and may optionally include a foundry name, e.g. "Helvetica [Cronyx]". + If the family is available from more than one foundry and the foundry isn't specified, an arbitrary foundry is chosen. + If the family isn't available a family will be set using the font matching algorithm. +*/ + +/*! + \qmlproperty string QtQuick::PathText::font.styleName + + Sets the style name of the font. + + The style name is case insensitive. If set, the font will be matched against style name instead + of the font properties \l font.weight, \l font.bold and \l font.italic. +*/ + +/*! + \qmlproperty bool QtQuick::PathText::font.bold + + Sets whether the font weight is bold. +*/ + +/*! + \qmlproperty enumeration QtQuick::PathText::font.weight + + Sets the font's weight. + + The weight can be one of: + \list + \li Font.Thin + \li Font.Light + \li Font.ExtraLight + \li Font.Normal - the default + \li Font.Medium + \li Font.DemiBold + \li Font.Bold + \li Font.ExtraBold + \li Font.Black + \endlist + + \qml + PathText { text: "Hello"; font.weight: Font.DemiBold } + \endqml +*/ + +/*! + \qmlproperty bool QtQuick::PathText::font.italic + + Sets whether the font has an italic style. +*/ + +/*! + \qmlproperty bool QtQuick::PathText::font.underline + + Sets whether the text is underlined. +*/ + +/*! + \qmlproperty bool QtQuick::PathText::font.strikeout + + Sets whether the font has a strikeout style. +*/ + +/*! + \qmlproperty real QtQuick::PathText::font.pointSize + + Sets the font size in points. The point size must be greater than zero. +*/ + +/*! + \qmlproperty int QtQuick::PathText::font.pixelSize + + Sets the font size in pixels. + + Using this function makes the font device dependent. + Use \c pointSize to set the size of the font in a device independent manner. +*/ + +/*! + \qmlproperty real QtQuick::PathText::font.letterSpacing + + Sets the letter spacing for the font. + + Letter spacing changes the default spacing between individual letters in the font. + A positive value increases the letter spacing by the corresponding pixels; a negative value decreases the spacing. +*/ + +/*! + \qmlproperty real QtQuick::PathText::font.wordSpacing + + Sets the word spacing for the font. + + Word spacing changes the default spacing between individual words. + A positive value increases the word spacing by a corresponding amount of pixels, + while a negative value decreases the inter-word spacing accordingly. +*/ + +/*! + \qmlproperty enumeration QtQuick::PathText::font.capitalization + + Sets the capitalization for the text. + + \list + \li Font.MixedCase - This is the normal text rendering option where no capitalization change is applied. + \li Font.AllUppercase - This alters the text to be rendered in all uppercase type. + \li Font.AllLowercase - This alters the text to be rendered in all lowercase type. + \li Font.SmallCaps - This alters the text to be rendered in small-caps type. + \li Font.Capitalize - This alters the text to be rendered with the first character of each word as an uppercase character. + \endlist + + \qml + PathText { text: "Hello"; font.capitalization: Font.AllLowercase } + \endqml +*/ + +/*! + \qmlproperty bool QtQuick::PathText::font.kerning + + Enables or disables the kerning OpenType feature when shaping the text. Disabling this may + improve performance when creating or changing the text, at the expense of some cosmetic + features. The default value is true. + + \qml + PathText { text: "OATS FLAVOUR WAY"; font.kerning: false } + \endqml +*/ + +/*! + \qmlproperty bool QtQuick::PathText::font.preferShaping + + Sometimes, a font will apply complex rules to a set of characters in order to + display them correctly. In some writing systems, such as Brahmic scripts, this is + required in order for the text to be legible, but in e.g. Latin script, it is merely + a cosmetic feature. Setting the \c preferShaping property to false will disable all + such features when they are not required, which will improve performance in most cases. + + The default value is true. + + \qml + PathText { text: "Some text"; font.preferShaping: false } + \endqml +*/ + +void QQuickPathText::updatePath() const +{ + if (!_path.isEmpty()) + return; + + _path.addText(0.0, 0.0, _font, _text); + + // Account for distance from baseline to top, since addText() takes baseline position + QRectF brect = _path.boundingRect(); + _path.translate(_x, _y - brect.y()); +} + +void QQuickPathText::addToPath(QPainterPath &path) +{ + if (_text.isEmpty()) + return; + updatePath(); + path.addPath(_path); +} + QT_END_NAMESPACE #include "moc_qquickpath_p.cpp" |