qtdeclarative/src/quick/scenegraph/util/qsgsimplerectnode.cpp

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#include "qsgsimplerectnode.h"
#include "qsgflatcolormaterial.h"

QT_BEGIN_NAMESPACE

/*!
  \class QSGSimpleRectNode

  \brief The QSGSimpleRectNode class is a convenience class for drawing
  solid filled rectangles using scenegraph.

 */



/*!
    Constructs a QSGSimpleRectNode instance which is spanning \a rect with
    the color \a color.
 */
QSGSimpleRectNode::QSGSimpleRectNode(const QRectF &rect, const QColor &color)
    : m_geometry(QSGGeometry::defaultAttributes_Point2D(), 4)
{
    Q_UNUSED(reserved);
    QSGGeometry::updateRectGeometry(&m_geometry, rect);
    m_material.setColor(color);
    setMaterial(&m_material);
    setGeometry(&m_geometry);
}



/*!
    Constructs a QSGSimpleRectNode instance with an empty rectangle and
    white color.
 */
QSGSimpleRectNode::QSGSimpleRectNode()
    : m_geometry(QSGGeometry::defaultAttributes_Point2D(), 4)
{
    QSGGeometry::updateRectGeometry(&m_geometry, QRectF());
    setMaterial(&m_material);
    setGeometry(&m_geometry);
}



/*!
    Sets the rectangle of this rect node to \a rect.
 */
void QSGSimpleRectNode::setRect(const QRectF &rect)
{
    QSGGeometry::updateRectGeometry(&m_geometry, rect);
    markDirty(QSGNode::DirtyGeometry);
}


/*!
    \fn void QSGSimpleRectNode::setRect(qreal x, qreal y, qreal w, qreal h)
    \overload

    Sets the rectangle of this rect node to begin at (\a x, \a y) and have
    width \a w and height \a h.
 */

/*!
    Returns the rectangle that this rect node covers.
 */
QRectF QSGSimpleRectNode::rect() const
{
    const QSGGeometry::Point2D *pts = m_geometry.vertexDataAsPoint2D();
    return QRectF(pts[0].x,
                  pts[0].y,
                  pts[3].x - pts[0].x,
                  pts[3].y - pts[0].y);
}


/*!
    Sets the color of this rectangle to \a color. The default
    color will be white.
 */
void QSGSimpleRectNode::setColor(const QColor &color)
{
    if (color != m_material.color()) {
        m_material.setColor(color);
        markDirty(QSGNode::DirtyMaterial);
    }
}



/*!
    Returns the color of this rectangle.
 */
QColor QSGSimpleRectNode::color() const
{
    return m_material.color();
}

QT_END_NAMESPACE