author | sandman <sandman> | 2002-06-25 21:19:29 (UTC) |
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committer | sandman <sandman> | 2002-06-25 21:19:29 (UTC) |
commit | 27d9215054a51c1d605e0f4e77abcee3c96e8270 (patch) (side-by-side diff) | |
tree | 4ece274016a03911beaa9fd2e011440a6af10877 /core/apps/calibrate/calibrate.cpp | |
parent | d64bb324d4b617479dab8bf967f954a66f0faa29 (diff) | |
download | opie-27d9215054a51c1d605e0f4e77abcee3c96e8270.zip opie-27d9215054a51c1d605e0f4e77abcee3c96e8270.tar.gz opie-27d9215054a51c1d605e0f4e77abcee3c96e8270.tar.bz2 |
Fix for the calibration routine I broke with my latest "enhancement"
(it is not that trivial to detect all sort of rotations and permutations
of the x and y axis)
Diffstat (limited to 'core/apps/calibrate/calibrate.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | core/apps/calibrate/calibrate.cpp | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/core/apps/calibrate/calibrate.cpp b/core/apps/calibrate/calibrate.cpp index 54fa8ec..1f4fb1b 100644 --- a/core/apps/calibrate/calibrate.cpp +++ b/core/apps/calibrate/calibrate.cpp @@ -76,55 +76,87 @@ void Calibrate::store() QWSServer::mouseHandler() ->calibrate( &goodcd ); } void Calibrate::hide() { if ( isVisible() ) store(); QDialog::hide(); } void Calibrate::reset() { penPos = QPoint(); location = QWSPointerCalibrationData::TopLeft; crossPos = fromDevice( cd.screenPoints[ location ] ); } QPoint Calibrate::fromDevice( const QPoint &p ) { return qt_screen->mapFromDevice ( p, QSize( qt_screen->deviceWidth ( ), qt_screen->deviceHeight() ) ); } bool Calibrate::sanityCheck() { - QRect r ( cd.devPoints[ QWSPointerCalibrationData::TopLeft ], cd.devPoints[ QWSPointerCalibrationData::BottomRight ] ); - r = r. normalize ( ); // This should also handle rotated TS controllers - - cd. devPoints [QWSPointerCalibrationData::TopRight] = r. topRight ( ); - cd. devPoints [QWSPointerCalibrationData::BottomLeft] = r. bottomLeft ( ); - cd. devPoints [QWSPointerCalibrationData::Center] = r. center ( ); - + QPoint tl = cd.devPoints[QWSPointerCalibrationData::TopLeft]; + QPoint tr = cd.devPoints[QWSPointerCalibrationData::TopRight]; + QPoint bl = cd.devPoints[QWSPointerCalibrationData::BottomLeft]; + QPoint br = cd.devPoints[QWSPointerCalibrationData::BottomRight]; + + // not needed anywhere .. just calculate it, so it's there + cd. devPoints [QWSPointerCalibrationData::Center] = QRect ( tl, br ). normalize ( ). center ( ); + + int dlx = QABS( bl. x ( ) - tl. x ( )); + int dly = QABS( bl. y ( ) - tl. y ( )); + int drx = QABS( br. x ( ) - tr. x ( )); + int dry = QABS( br. y ( ) - tr. y ( )); + int dtx = QABS( tr. x ( ) - tl. x ( )); + int dty = QABS( tr. y ( ) - tl. y ( )); + int dbx = QABS( br. x ( ) - bl. x ( )); + int dby = QABS( br. y ( ) - bl. y ( )); + + int dl = (int) ::sqrt (( dlx * dlx ) + ( dly * dly )); // calculate vector lengths for all sides + int dr = (int) ::sqrt (( drx * drx ) + ( dry * dry )); + int dt = (int) ::sqrt (( dtx * dtx ) + ( dty * dty )); + int db = (int) ::sqrt (( dbx * dbx ) + ( dby * dby )); + + // Calculate leeway for x/y (we do not care if diff1/diff2 is for x or y here !) + int diff1 = QABS( dl - dr ); + int avg1 = ( dl + dr ) / 2; + int diff2 = QABS( dt - db ); + int avg2 = ( dt + db ) / 2; + + // Calculate leeway for "real" vector length against "manhattan" vector length + // This is a check, if the rect is rotated (other then 0/90/180/270) + // It needs to be performed only for the triange (bl, tl, tr) + int diff3 = QABS(( dlx + dly + dtx + dty ) - ( dl + dt )); + int avg3 = (( dlx + dly + dtx + dty ) + ( dl + dt )) / 2; + + if (( diff1 > ( avg1 / 20 )) || // 5% leeway + ( diff2 > ( avg2 / 20 )) || + ( diff3 > ( avg3 / 20 ))) + return false; + else return true; } void Calibrate::moveCrosshair( QPoint pt ) { showCross = FALSE; repaint( crossPos.x() - 8, crossPos.y() - 8, 16, 16 ); showCross = TRUE; crossPos = pt; repaint( crossPos.x() - 8, crossPos.y() - 8, 16, 16 ); } void Calibrate::paintEvent( QPaintEvent * ) { QPainter p( this ); int y; if ( !logo.isNull() ) { y = height() / 2 - logo.height() - 15; p.drawPixmap( ( width() - logo.width() ) / 2, y, logo ); } y = height() / 2 + 15; @@ -145,50 +177,50 @@ void Calibrate::paintEvent( QPaintEvent * ) p.drawRect( crossPos.x() - 8, crossPos.y() - 1, 7, 2 ); p.drawRect( crossPos.x() + 1, crossPos.y() - 1, 7, 2 ); } } void Calibrate::mousePressEvent( QMouseEvent *e ) { // map to device coordinates QPoint devPos = qt_screen->mapToDevice( e->pos(), QSize( qt_screen->width(), qt_screen->height() ) ); if ( penPos.isNull() ) penPos = devPos; else penPos = QPoint( ( penPos.x() + devPos.x() ) / 2, ( penPos.y() + devPos.y() ) / 2 ); } void Calibrate::mouseReleaseEvent( QMouseEvent * ) { if ( timer->isActive() ) return ; bool doMove = TRUE; cd.devPoints[ location ] = penPos; - if ( location == QWSPointerCalibrationData::TopLeft ) { - location = QWSPointerCalibrationData::BottomRight; + if ( location < QWSPointerCalibrationData::TopRight ) { + location = (QWSPointerCalibrationData::Location) ( int( location ) + 1 ); } else { if ( sanityCheck() ) { reset(); goodcd = cd; hide(); emit accept(); doMove = FALSE; } else { location = QWSPointerCalibrationData::TopLeft; } } if ( doMove ) { QPoint target = fromDevice( cd.screenPoints[ location ] ); dx = ( target.x() - crossPos.x() ) / 10; dy = ( target.y() - crossPos.y() ) / 10; timer->start( 30 ); } } void Calibrate::timeout() { |