source: trunk/src/qt3support/widgets/q3frame.cpp@ 1023

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#include "q3frame.h"
#include "qevent.h"
#include "qpainter.h"

QT_BEGIN_NAMESPACE

/*! \class Q3Frame

    \compat
*/

/*!
    Creates a new frame with the given \a parent, object \a name, and
    with widget flags \a f.
*/
Q3Frame::Q3Frame(QWidget* parent, const char* name, Qt::WindowFlags f)
    :QFrame(parent, f), marg(0)
{
    if (name)
        setObjectName(QLatin1String(name));
    setAttribute(Qt::WA_LayoutOnEntireRect);
}

/*!
    Destructs the frame.
*/
Q3Frame::~Q3Frame()
{
}

/*!
    Paints the frame (or part of the frame) that's necessary,
    depending on the \a event.
*/
void Q3Frame::paintEvent(QPaintEvent * event)
{
    QPainter paint(this);
    if (!contentsRect().contains(event->rect())) {
        paint.save();
        paint.setClipRegion(event->region().intersected(frameRect()));
        drawFrame(&paint);
        paint.restore();
    }
    if (event->rect().intersects(contentsRect())) {
        paint.setClipRegion(event->region().intersected(contentsRect()));
        drawContents(&paint);
    }
}

/*!
    \fn void Q3Frame::drawContents(QPainter *painter)

    Virtual function that draws the contents of the frame on the given
    \a painter.

    The QPainter is already open when you get it, and you must leave
    it open. Painter \link QPainter::setWorldMatrix()
    transformations\endlink are switched off on entry. If you
    transform the painter, remember to take the frame into account and
    \link QPainter::resetXForm() reset transformation\endlink before
    returning.

    This function is reimplemented by subclasses that draw something
    inside the frame. It should only draw inside contentsRect(). The
    default function does nothing.

    \sa contentsRect(), QPainter::setClipRect()
*/

void Q3Frame::drawContents(QPainter *)
{
}

/*!
    Draws the frame using the painter \a p and the current frame
    attributes and color group. The rectangle inside the frame is not
    affected.

    This function is virtual, but in general you do not need to
    reimplement it. If you do, note that the QPainter is already open
    and must remain open.

    \sa frameRect(), contentsRect(), drawContents(), frameStyle(), setPalette()
*/

void Q3Frame::drawFrame(QPainter *p)
{
    QFrame::drawFrame(p);
}