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Diffstat (limited to 'src/declarative/graphicsitems/qmlgraphicsrectangle.cpp')
| -rw-r--r-- | src/declarative/graphicsitems/qmlgraphicsrectangle.cpp | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/src/declarative/graphicsitems/qmlgraphicsrectangle.cpp b/src/declarative/graphicsitems/qmlgraphicsrectangle.cpp deleted file mode 100644 index adc4cf3..0000000 --- a/src/declarative/graphicsitems/qmlgraphicsrectangle.cpp +++ /dev/null @@ -1,466 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qmlgraphicsrectangle_p.h" -#include "qmlgraphicsrectangle_p_p.h" - -#include <QPainter> -#include <QtCore/qmath.h> - -QT_BEGIN_NAMESPACE - -/*! - \internal - \class QmlGraphicsPen - \brief The QmlGraphicsPen class provides a pen used for drawing rectangle borders on a QmlView. - - 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 -*/ - -void QmlGraphicsPen::setColor(const QColor &c) -{ - _color = c; - _valid = _color.alpha() ? true : false; - emit penChanged(); -} - -void QmlGraphicsPen::setWidth(int w) -{ - if (_width == w && _valid) - return; - - _width = w; - _valid = (_width < 1) ? false : true; - emit penChanged(); -} - - -/*! - \qmlclass GradientStop QmlGraphicsGradientStop - \since 4.7 - \brief The GradientStop item defines the color at a position in a Gradient - - \sa Gradient -*/ - -/*! - \qmlproperty real GradientStop::position - \qmlproperty color GradientStop::color - - Sets a \e color at a \e position in a gradient. -*/ - -void QmlGraphicsGradientStop::updateGradient() -{ - if (QmlGraphicsGradient *grad = qobject_cast<QmlGraphicsGradient*>(parent())) - grad->doUpdate(); -} - -/*! - \qmlclass Gradient QmlGraphicsGradient - \since 4.7 - \brief The Gradient item defines a gradient fill. - - A gradient is defined by two or more colors, which will be blended seemlessly. The - colors are specified at their position in the range 0.0 - 1.0 via - the GradientStop item. For example, the following code paints a - rectangle with a gradient starting with red, blending to yellow at 1/3 of the - size of the rectangle, and ending with Green: - - \table - \row - \o \image gradient.png - \o \quotefile doc/src/snippets/declarative/gradient.qml - \endtable - - \sa GradientStop -*/ - -/*! - \qmlproperty list<GradientStop> Gradient::stops - This property holds the gradient stops describing the gradient. -*/ - -const QGradient *QmlGraphicsGradient::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 QmlGraphicsGradientStop *stop = m_stops.at(i); - m_gradient->setCoordinateMode(QGradient::ObjectBoundingMode); - m_gradient->setColorAt(stop->position(), stop->color()); - } - } - - return m_gradient; -} - -void QmlGraphicsGradient::doUpdate() -{ - delete m_gradient; - m_gradient = 0; - emit updated(); -} - - -/*! - \qmlclass Rectangle QmlGraphicsRectangle - \since 4.7 - \brief The Rectangle item allows you to add rectangles to a scene. - \inherits Item - - A Rectangle is painted having a solid fill (color) and an optional border. - You can also create rounded rectangles using the radius property. - - \qml - Rectangle { - width: 100 - height: 100 - color: "red" - border.color: "black" - border.width: 5 - radius: 10 - } - \endqml - - \image declarative-rect.png -*/ - -/*! - \internal - \class QmlGraphicsRectangle - \brief The QmlGraphicsRectangle class provides a rectangle item that you can add to a QmlView. -*/ -QmlGraphicsRectangle::QmlGraphicsRectangle(QmlGraphicsItem *parent) - : QmlGraphicsItem(*(new QmlGraphicsRectanglePrivate), parent) -{ - Q_D(QmlGraphicsRectangle); - d->init(); - setFlag(QGraphicsItem::ItemHasNoContents, false); -} - -void QmlGraphicsRectangle::doUpdate() -{ - Q_D(QmlGraphicsRectangle); - d->rectImage = QPixmap(); - const int pw = d->pen && d->pen->isValid() ? d->pen->width() : 0; - d->setPaintMargin((pw+1)/2); - update(); -} - -/*! - \qmlproperty int Rectangle::border.width - \qmlproperty color 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. - - To keep the border smooth (rather than blurry), odd widths cause the rectangle to be painted at - a half-pixel offset; -*/ -QmlGraphicsPen *QmlGraphicsRectangle::border() -{ - Q_D(QmlGraphicsRectangle); - return d->getPen(); -} - -/*! - \qmlproperty Gradient 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. - - \table - \row - \o \image declarative-rect_gradient.png - \o - \qml - Rectangle { y: 0; width: 80; height: 80; color: "lightsteelblue" } - Rectangle { y: 100; width: 80; height: 80 - gradient: Gradient { - GradientStop { position: 0.0; color: "lightsteelblue" } - GradientStop { position: 1.0; color: "blue" } - } - } - Rectangle { rotation: 90; x: 80; y: 200; width: 80; height: 80 - gradient: Gradient { - GradientStop { position: 0.0; color: "lightsteelblue" } - GradientStop { position: 1.0; color: "blue" } - } - } - // The x offset is needed because the rotation is from the top left corner - \endqml - \endtable - - If both a gradient and a color are specified, the gradient will be used. - - \sa Gradient, color -*/ -QmlGraphicsGradient *QmlGraphicsRectangle::gradient() const -{ - Q_D(const QmlGraphicsRectangle); - return d->gradient; -} - -void QmlGraphicsRectangle::setGradient(QmlGraphicsGradient *gradient) -{ - Q_D(QmlGraphicsRectangle); - if (d->gradient == gradient) - return; - if (d->gradient) - disconnect(d->gradient, SIGNAL(updated()), this, SLOT(doUpdate())); - d->gradient = gradient; - if (d->gradient) - connect(d->gradient, SIGNAL(updated()), this, SLOT(doUpdate())); - update(); -} - - -/*! - \qmlproperty real 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 QmlGraphicsRectangle::radius() const -{ - Q_D(const QmlGraphicsRectangle); - return d->radius; -} - -void QmlGraphicsRectangle::setRadius(qreal radius) -{ - Q_D(QmlGraphicsRectangle); - if (d->radius == radius) - return; - - d->radius = radius; - d->rectImage = QPixmap(); - update(); - emit radiusChanged(); -} - -/*! - \qmlproperty color Rectangle::color - This property holds the color used to fill the rectangle. - - \qml - // green rectangle using hexidecimal notation - Rectangle { color: "#00FF00" } - - // steelblue rectangle using SVG color name - Rectangle { color: "steelblue" } - \endqml - - The default color is white. - - If both a gradient and a color are specified, the gradient will be used. -*/ -QColor QmlGraphicsRectangle::color() const -{ - Q_D(const QmlGraphicsRectangle); - return d->color; -} - -void QmlGraphicsRectangle::setColor(const QColor &c) -{ - Q_D(QmlGraphicsRectangle); - if (d->color == c) - return; - - d->color = c; - d->rectImage = QPixmap(); - update(); - emit colorChanged(); -} - -void QmlGraphicsRectangle::generateRoundedRect() -{ - Q_D(QmlGraphicsRectangle); - if (d->rectImage.isNull()) { - const int pw = d->pen && d->pen->isValid() ? d->pen->width() : 0; - const int radius = qCeil(d->radius); //ensure odd numbered width/height so we get 1-pixel center - d->rectImage = QPixmap(radius*2 + 3 + pw*2, radius*2 + 3 + pw*2); - d->rectImage.fill(Qt::transparent); - QPainter p(&(d->rectImage)); - p.setRenderHint(QPainter::Antialiasing); - if (d->pen && d->pen->isValid()) { - QPen pn(QColor(d->pen->color()), d->pen->width()); - p.setPen(pn); - } else { - p.setPen(Qt::NoPen); - } - p.setBrush(d->color); - if (pw%2) - p.drawRoundedRect(QRectF(qreal(pw)/2+1, qreal(pw)/2+1, d->rectImage.width()-(pw+1), d->rectImage.height()-(pw+1)), d->radius, d->radius); - else - p.drawRoundedRect(QRectF(qreal(pw)/2, qreal(pw)/2, d->rectImage.width()-pw, d->rectImage.height()-pw), d->radius, d->radius); - } -} - -void QmlGraphicsRectangle::generateBorderedRect() -{ - Q_D(QmlGraphicsRectangle); - if (d->rectImage.isNull()) { - const int pw = d->pen && d->pen->isValid() ? d->pen->width() : 0; - d->rectImage = QPixmap(pw*2 + 3, pw*2 + 3); - d->rectImage.fill(Qt::transparent); - QPainter p(&(d->rectImage)); - p.setRenderHint(QPainter::Antialiasing); - if (d->pen && d->pen->isValid()) { - QPen pn(QColor(d->pen->color()), d->pen->width()); - pn.setJoinStyle(Qt::MiterJoin); - p.setPen(pn); - } else { - p.setPen(Qt::NoPen); - } - p.setBrush(d->color); - if (pw%2) - p.drawRect(QRectF(qreal(pw)/2+1, qreal(pw)/2+1, d->rectImage.width()-(pw+1), d->rectImage.height()-(pw+1))); - else - p.drawRect(QRectF(qreal(pw)/2, qreal(pw)/2, d->rectImage.width()-pw, d->rectImage.height()-pw)); - } -} - -void QmlGraphicsRectangle::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *) -{ - Q_D(QmlGraphicsRectangle); - if (d->radius > 0 || (d->pen && d->pen->isValid()) - || (d->gradient && d->gradient->gradient()) ) { - drawRect(*p); - } - else { - bool oldAA = p->testRenderHint(QPainter::Antialiasing); - if (d->smooth) - p->setRenderHints(QPainter::Antialiasing, true); - p->fillRect(QRectF(0, 0, width(), height()), d->color); - if (d->smooth) - p->setRenderHint(QPainter::Antialiasing, oldAA); - } -} - -void QmlGraphicsRectangle::drawRect(QPainter &p) -{ - Q_D(QmlGraphicsRectangle); - if (d->gradient && d->gradient->gradient()) { - // XXX This path is still slower than the image path - // Image path won't work for gradients though - bool oldAA = p.testRenderHint(QPainter::Antialiasing); - if (d->smooth) - p.setRenderHint(QPainter::Antialiasing); - if (d->pen && d->pen->isValid()) { - QPen pn(QColor(d->pen->color()), d->pen->width()); - p.setPen(pn); - } else { - p.setPen(Qt::NoPen); - } - p.setBrush(*d->gradient->gradient()); - if (d->radius > 0.) - p.drawRoundedRect(0, 0, width(), height(), d->radius, d->radius); - else - p.drawRect(0, 0, width(), height()); - if (d->smooth) - p.setRenderHint(QPainter::Antialiasing, oldAA); - } else { - bool oldAA = p.testRenderHint(QPainter::Antialiasing); - bool oldSmooth = p.testRenderHint(QPainter::SmoothPixmapTransform); - if (d->smooth) - p.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, d->smooth); - - const int pw = d->pen && d->pen->isValid() ? (d->pen->width()+1)/2*2 : 0; - - if (d->radius > 0) - generateRoundedRect(); - else - generateBorderedRect(); - - int xOffset = (d->rectImage.width()-1)/2; - int yOffset = (d->rectImage.height()-1)/2; - Q_ASSERT(d->rectImage.width() == 2*xOffset + 1); - Q_ASSERT(d->rectImage.height() == 2*yOffset + 1); - - QMargins margins(xOffset, yOffset, xOffset, yOffset); - QTileRules rules(Qt::StretchTile, Qt::StretchTile); - //NOTE: even though our item may have qreal-based width and height, qDrawBorderPixmap only supports QRects - qDrawBorderPixmap(&p, QRect(-pw/2, -pw/2, width()+pw, height()+pw), margins, d->rectImage, d->rectImage.rect(), margins, rules); - - if (d->smooth) { - p.setRenderHint(QPainter::Antialiasing, oldAA); - p.setRenderHint(QPainter::SmoothPixmapTransform, oldSmooth); - } - } -} - -/*! - \qmlproperty bool 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 -*/ - -QRectF QmlGraphicsRectangle::boundingRect() const -{ - Q_D(const QmlGraphicsRectangle); - return QRectF(-d->paintmargin, -d->paintmargin, d->width+d->paintmargin*2, d->height+d->paintmargin*2); -} - -QT_END_NAMESPACE |