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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include <qlabel.h>
#include <qlayout.h>
#include <qpainter.h>
#include <math.h>
#include "tabletstats.h"
MyOrientation::MyOrientation( QWidget *parent, const char *name )
: QFrame( parent, name, WRepaintNoErase )
{
// QSizePolicy mySize( QSizePolicy::Minimum, QSizePolicy::Expanding );
// setSizePolicy( mySize );
setFrameStyle( QFrame::Box | QFrame::Sunken );
}
MyOrientation::~MyOrientation()
{
}
void MyOrientation::newOrient( int tiltX, int tiltY )
{
double PI = 3.14159265359;
int realWidth,
realHeight,
hypot, // a faux hypoteneus, to mess with calculations
shaX,
shaY;
static int oldX = 0,
oldY = 0;
realWidth = width() - 2 * frameWidth();
realHeight = height() - 2 * frameWidth();
QRect cr( 0 + frameWidth(), 0 + frameWidth(), realWidth, realHeight );
QPixmap pix( cr.size() );
pix.fill( this, cr.topLeft() );
QPainter p( &pix );
if ( realWidth > realHeight )
hypot = realHeight / 2;
else
hypot = realWidth / 2;
// create a shadow...
shaX = int(hypot * sin( tiltX * (PI / 180) ));
shaY = int(hypot * sin( tiltY * (PI / 180) ));
p.translate( realWidth / 2, realHeight / 2 );
p.setPen( backgroundColor() );
p.drawLine( 0, 0, oldX, oldY );
p.setPen( foregroundColor() );
p.drawLine( 0, 0,shaX, shaY );
oldX = shaX;
oldY = shaY;
p.end();
QPainter p2( this );
p2.drawPixmap( cr.topLeft(), pix );
p2.end();
}
StatsCanvas::StatsCanvas( QWidget *parent, const char* name )
: Canvas( parent, name, WRepaintNoErase )
{
QSizePolicy mySize( QSizePolicy::Expanding, QSizePolicy::Minimum );
setSizePolicy( mySize );
}
StatsCanvas::~StatsCanvas()
{
}
void StatsCanvas::tabletEvent( QTabletEvent *e )
{
static QRect oldR( -1, -1, -1, -1);
QPainter p;
e->accept();
switch( e->type() ) {
case QEvent::TabletPress:
qDebug( "Tablet Press" );
mousePressed = TRUE;
break;
case QEvent::TabletRelease:
qDebug( "Tablet Release" );
mousePressed = FALSE;
clearScreen();
break;
default:
break;
}
r.setRect( e->x() - e->pressure() / 2,
e->y() - e->pressure() / 2, e->pressure(), e->pressure() );
QRect tmpR = r | oldR;
oldR = r;
update( tmpR );
emit signalNewTilt( e->xTilt(), e->yTilt() );
emit signalNewDev( e->device() );
emit signalNewLoc( e->x(), e->y() );
emit signalNewPressure( e->pressure() );
}
void StatsCanvas::mouseMoveEvent( QMouseEvent *e )
{
qDebug( "Mouse Move" );
// do nothing
QWidget::mouseMoveEvent( e );
}
void StatsCanvas::mousePressEvent( QMouseEvent *e )
{
qDebug( "Mouse Press" );
QWidget::mousePressEvent( e );
}
void StatsCanvas::mouseReleaseEvent( QMouseEvent *e )
{
qDebug( "Mouse Release" );
QWidget::mouseReleaseEvent( e );
}
void StatsCanvas::paintEvent( QPaintEvent *e )
{
QPainter p;
p.begin( &buffer );
p.fillRect( e->rect(), colorGroup().base() );
// draw a circle if we have the tablet down
if ( mousePressed ) {
p.setBrush( red );
p.drawEllipse( r );
}
bitBlt( this, e->rect().x(), e->rect().y(), &buffer, e->rect().x(),
e->rect().y(), e->rect().width(), e->rect().height() );
p.end();
}
TabletStats::TabletStats( QWidget *parent, const char *name )
: TabletStatsBase( parent, name )
{
lblXPos->setMinimumSize( lblXPos->sizeHint() );
lblYPos->setMinimumSize( lblYPos->sizeHint() );
lblPressure->setMinimumSize( lblPressure->sizeHint() );
lblDev->setMinimumSize( lblDev->sizeHint() );
lblXTilt->setMinimumSize( lblXTilt->sizeHint() );
lblYTilt->setMinimumSize( lblYTilt->sizeHint() );
QObject::connect( statCan, SIGNAL(signalNewTilt(int, int)),
orient, SLOT(newOrient(int, int)) );
QObject::connect( statCan, SIGNAL(signalNewTilt(int, int)),
this, SLOT(slotTiltChanged(int, int)) );
QObject::connect( statCan, SIGNAL(signalNewDev(int)),
this, SLOT(slotDevChanged(int)) );
QObject::connect( statCan, SIGNAL(signalNewLoc(int,int)),
this, SLOT( slotLocationChanged(int,int)) );
}
TabletStats::~TabletStats()
{
}
void TabletStats::slotDevChanged( int newDev )
{
if ( newDev == QTabletEvent::Stylus )
lblDev->setText( tr("Stylus") );
else if ( newDev == QTabletEvent::Eraser )
lblDev->setText( tr("Eraser") );
}
void TabletStats::slotLocationChanged( int newX, int newY )
{
lblXPos->setNum( newX );
lblYPos->setNum( newY );
}
void TabletStats::slotTiltChanged( int newTiltX, int newTiltY )
{
lblXTilt->setNum( newTiltX );
lblYTilt->setNum( newTiltY );
}
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