From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Sun, 10 Jul 2011 15:24:15 -0500
Subject: Add Qt3 development HEAD version

---
 examples/tablet/tabletstats.cpp | 194 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 194 insertions(+)
 create mode 100644 examples/tablet/tabletstats.cpp

(limited to 'examples/tablet/tabletstats.cpp')

diff --git a/examples/tablet/tabletstats.cpp b/examples/tablet/tabletstats.cpp
new file mode 100644
index 0000000..a6e91fb
--- /dev/null
+++ b/examples/tablet/tabletstats.cpp
@@ -0,0 +1,194 @@
+/****************************************************************************
+**
+** 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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