qmag-qmag-cpp.html

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        z = 16;
    else
        z = index+1;
    <a name="grab"></a><a href="#303">grab</a>();
}

void <a name="300"></a>MagWidget::setRefresh( int index )
{
    r = index;
    <a name="killTimers"></a><a href="qobject.html#0ef111">killTimers</a>();
    if (index &amp;&amp; !grabbing)
        <a name="startTimer"></a><a href="qobject.html#4c6b67">startTimer</a>( timer[r] );
}

void <a name="301"></a>MagWidget::save()
{
    if ( !p.<a name="isNull"></a><a href="qpixmap.html#7803c4">isNull</a>() ) {
        <a href="qobject.html#0ef111">killTimers</a>();
        <a href="qstring.html">QString</a> fn = QFileDialog::getSaveFileName();
        if ( !fn.<a name="isEmpty"></a><a href="qstring.html#c62623">isEmpty</a>() )
            p.<a name="save"></a><a href="qpixmap.html#a38b1c">save</a>( fn, "BMP" );
        if ( r )
            <a href="qobject.html#4c6b67">startTimer</a>( timer[r] );
    }
}

void <a name="302"></a>MagWidget::multiSave()
{
    if ( !p.<a href="qpixmap.html#7803c4">isNull</a>() ) {
        multifn = ""; // stops saving
        multifn = QFileDialog::getSaveFileName();
        if ( multifn.<a href="qstring.html#c62623">isEmpty</a>() )
            multiSaveButton-&gt;<a name="setOn"></a><a href="qpushbutton.html#15502f">setOn</a>(FALSE);
        if ( !r )
            p.<a href="qpixmap.html#a38b1c">save</a>( multifn, "BMP" );
    } else {
        multiSaveButton-&gt;<a href="qpushbutton.html#15502f">setOn</a>(FALSE);
    }
}

void <a name="303"></a>MagWidget::grab()
{
    if ( !isVisible() ) 
        return;                 // don't eat resources when iconified

    if ( grabx &lt; 0 || graby &lt; 0 )
        return;                 // don't grab until the user has said to

    int x,y, w,h;

    w = (<a href="qwidget.html#2edab1">width</a>()+z-1)/z;
    h = (<a href="qwidget.html#e3c588">height</a>()+z-1-yoffset)/z;
    if ( w&lt;1 || h&lt;1 )
        return;                 // don't ask too much from the window system :)

    x = grabx-w/2;              // find a suitable position to grab from
    y = graby-h/2;
    if ( x + w &gt; <a name="QApplication::desktop"></a><a href="qapplication.html#d8ed8c">QApplication::desktop</a>()-&gt;width() )
        x = QApplication::desktop()-&gt;width()-w;
    else if ( x &lt; 0 )
        x = 0;
    if ( y + h &gt; <a href="qapplication.html#d8ed8c">QApplication::desktop</a>()-&gt;height() ) 
        y = QApplication::desktop()-&gt;height()-h;
    else if ( y &lt; 0 )
        y = 0;

    p = QPixmap::grabWindow( <a href="qapplication.html#d8ed8c">QApplication::desktop</a>()-&gt;winId(),  x, y, w, h );
    image = p.<a name="convertToImage"></a><a href="qpixmap.html#8c5f15">convertToImage</a>();
    <a name="QWMatrix"></a><a href="qwmatrix.html">QWMatrix</a> m;                 // after getting it, scale it
    m.scale( (double)z, (double)z );
    pm = p.<a name="xForm"></a><a href="qpixmap.html#ff5fcf">xForm</a>( m );

    if ( !multiSaveButton || !multiSaveButton-&gt;<a name="isOn"></a><a href="qbutton.html#12ce08">isOn</a>() )
        <a name="repaint"></a><a href="qwidget.html#7569b1">repaint</a>( FALSE );               // and finally repaint, flicker-free
}

void <a name="304"></a>MagWidget::paintEvent( <a href="qpaintevent.html">QPaintEvent</a> * )
{
    if ( !pm.<a href="qpixmap.html#7803c4">isNull</a>() ) {
        <a name="QPainter"></a><a href="qpainter.html">QPainter</a> paint( this );
        paint.<a name="drawPixmap"></a><a href="qpainter.html#c64b89">drawPixmap</a>( 0, zoom ? zoom-&gt;<a href="qwidget.html#e3c588">height</a>()+4 : 0, pm, 
                              0,0, <a href="qwidget.html#2edab1">width</a>(), <a href="qwidget.html#e3c588">height</a>()-yoffset );
    }
}

void <a name="305"></a>MagWidget::mousePressEvent( <a href="qmouseevent.html">QMouseEvent</a> *e )
{
    if ( !grabbing ) {          // prepare to grab...
        grabbing = TRUE;
        <a href="qobject.html#0ef111">killTimers</a>();
        <a name="grabMouse"></a><a href="qwidget.html#5bdd5f">grabMouse</a>( crossCursor );
        grabx = -1;
        graby = -1;
    } else {                    // REALLY prepare to grab
        grabx = mapToGlobal(e-&gt;<a name="pos"></a><a href="qmouseevent.html#ac6f25">pos</a>()).x();
        graby = mapToGlobal(e-&gt;<a href="qmouseevent.html#ac6f25">pos</a>()).y();
    }
}

void <a name="306"></a>MagWidget::mouseReleaseEvent( <a href="qmouseevent.html">QMouseEvent</a> * e )
{
    if ( grabbing &amp;&amp; grabx &gt;= 0 &amp;&amp; graby &gt;= 0 ) {
        grabbing = FALSE;
        <a href=#307>grabAround</a>(e-&gt;<a href="qmouseevent.html#ac6f25">pos</a>());
        <a name="releaseMouse"></a><a href="qwidget.html#369707">releaseMouse</a>();
    }
}

void <a name="307"></a>MagWidget::grabAround(<a href="qpoint.html">QPoint</a> pos)
{
    int rx, ry;
    rx = mapToGlobal(pos).x();
    ry = mapToGlobal(pos).y();
    int w = QABS(rx-grabx);
    int h = QABS(ry-graby);
    if ( w &gt; 10 &amp;&amp; h &gt; 10 ) {
        int pz;
        pz = 1;
        while ( w*pz*h*pz &lt; width()*(<a href="qwidget.html#e3c588">height</a>()-yoffset) &amp;&amp;
                w*pz &lt; <a href="qapplication.html#d8ed8c">QApplication::desktop</a>()-&gt;width() &amp;&amp;
                h*pz &lt; <a href="qapplication.html#d8ed8c">QApplication::desktop</a>()-&gt;height() )
            pz++;
        if ( (w*pz*h*pz - width()*(<a href="qwidget.html#e3c588">height</a>()-yoffset)) &gt; 
             (<a href="qwidget.html#2edab1">width</a>()*(<a href="qwidget.html#e3c588">height</a>()-yoffset) - w*(pz-1)*h*(pz-1)) )
            pz--;
        if ( pz &lt; 1 )
            pz = 1;
        if ( pz &gt; 8 )
            pz = 8;
        if ( zoom )
            zoom-&gt;<a name="setCurrentItem"></a><a href="qcombobox.html#8a94f7">setCurrentItem</a>( pz-1 );

        z = pz;
        grabx = QMIN(rx, grabx) + w/2;
        graby = QMIN(ry, graby) + h/2;
        <a href="qwidget.html#8fcbbe">resize</a>( w*z, h*z+yoffset );
    }
    <a href=#303>grab</a>();
    if ( r )
        <a href="qobject.html#4c6b67">startTimer</a>( timer[r] );
}

void <a name="308"></a>MagWidget::mouseMoveEvent( <a href="qmouseevent.html">QMouseEvent</a> *e )
{
    if ( grabbing || pm.<a href="qpixmap.html#7803c4">isNull</a>() ||
         e-&gt;<a href="qmouseevent.html#ac6f25">pos</a>().y() &gt; height() - (zoom ? zoom-&gt;<a href="qwidget.html#386569">fontMetrics</a>().height() - 4 : 0) ||
         e-&gt;<a href="qmouseevent.html#ac6f25">pos</a>().y() &lt; (zoom ? zoom-&gt;<a href="qwidget.html#e3c588">height</a>()+4 : 4) ) {
        rgb-&gt;<a href="qlabel.html#bc5ea6">setText</a>( "" );
    } else {
        int x,y;
        x = e-&gt;<a href="qmouseevent.html#ac6f25">pos</a>().x() / z;
        y = (e-&gt;<a href="qmouseevent.html#ac6f25">pos</a>().y() - ( zoom ? zoom-&gt;<a href="qwidget.html#e3c588">height</a>() : 0 ) - 4) / z;
        <a href="qstring.html">QString</a> pixelinfo;
        if ( image.<a name="valid"></a><a href="qimage.html#81538b">valid</a>(x,y) )
        {
            QRgb px = image.<a name="pixel"></a><a href="qimage.html#ecfb25">pixel</a>(x,y);
            pixelinfo.<a name="sprintf"></a><a href="qstring.html#926f67">sprintf</a>(" %3d,%3d,%3d  #%02x%02x%02x",
                <a name="qRed"></a><a href="qcolor.html#2f7325">qRed</a>(px), <a name="qGreen"></a><a href="qcolor.html#1cf303">qGreen</a>(px), <a name="qBlue"></a><a href="qcolor.html#c84970">qBlue</a>(px),
                <a href="qcolor.html#2f7325">qRed</a>(px), <a href="qcolor.html#1cf303">qGreen</a>(px), <a href="qcolor.html#c84970">qBlue</a>(px));
        }
        <a href="qstring.html">QString</a> label;
        label.<a href="qstring.html#926f67">sprintf</a>( "x=%d, y=%d %s", 
            x+grabx, y+graby, (const char*)pixelinfo );
        rgb-&gt;<a href="qlabel.html#bc5ea6">setText</a>( label );
    }
}

void <a name="309"></a>MagWidget::focusOutEvent( <a href="qfocusevent.html">QFocusEvent</a> * )
{
    rgb-&gt;<a href="qlabel.html#bc5ea6">setText</a>( "" );
}

void <a name="310"></a>MagWidget::timerEvent( <a href="qtimerevent.html">QTimerEvent</a> * )
{
    <a href=#303>grab</a>();
/*
    if ( multiSaveButton-&gt;<a href="qbutton.html#12ce08">isOn</a>() &amp;&amp; !multifn.<a href="qstring.html#c62623">isEmpty</a>() ) {
        <a name="QRegExp"></a><a href="qregexp.html">QRegExp</a> num("[0-9][0-9]*");
        int start;
        int len;
        if ((start=num.<a name="match"></a><a href="qregexp.html#f6e804">match</a>(multifn,0,&amp;len))&gt;=0)
            multifn.<a name="replace"></a><a href="qstring.html#034e6e">replace</a>(num,
                <a href="qstring.html">QString</a>().setNum(multifn.<a name="mid"></a><a href="qstring.html#3b1493">mid</a>(start,len).toInt()+1)
            );
        p.<a href="qpixmap.html#a38b1c">save</a>( multifn, "BMP" );
    }
*/
}

void <a name="311"></a>MagWidget::resizeEvent( <a href="qresizeevent.html">QResizeEvent</a> * )
{
    rgb-&gt;<a href="qwidget.html#9ede68">setGeometry</a>( 0, <a href="qwidget.html#e3c588">height</a>() - rgb-&gt;<a href="qwidget.html#e3c588">height</a>(), <a href="qwidget.html#2edab1">width</a>(), rgb-&gt;<a href="qwidget.html#e3c588">height</a>() );
    <a href=#303>grab</a>();
}

#include "qmag.moc"

int main( int argc, char **argv )
{
    <a name="QApplication"></a><a href="qapplication.html">QApplication</a> a( argc, argv );
    MagWidget m;
    a.<a name="setMainWidget"></a><a href="qapplication.html#7ad759">setMainWidget</a>( &amp;m );
    m.<a name="show"></a><a href="qwidget.html#200ee5">show</a>();
    return a.<a name="exec"></a><a href="qapplication.html#84c7bf">exec</a>();
}
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