3 files changed, 383 insertions, 0 deletions

diff --git a/development/calibrate2/README b/development/calibrate2/README
new file mode 100644
index 0000000..c40e57b
--- a/dev/null
+++ b/development/calibrate2/README
@@ -0,0 +1,13 @@
+I had problems with a swapped x/y axis when I moved to libts and calibrated
+using opie-calibrate.
+
+When I uses ts_calibrate from tslib-tools, the x/y-axis were correct.
+
+So I used tslib-tools' ts_calibate.c as a template to write a newer opie-calibrate
+tools. It works for me so far, now it would be helpful to find out if it works
+for other devices equally well.
+
+CAVEAT: in Qt/E src/kernel/qwsmouse_qws.cpp there is no direct access to
+the a,b,c d,e,f and s variables, not even via readCalibration() because their're
+protected. So you basically have to restart Opie after calibrating, which I'm
+doing (yet).
diff --git a/development/calibrate2/calibrate.cpp b/development/calibrate2/calibrate.cpp
new file mode 100644
index 0000000..e5d5ead
--- a/dev/null
+++ b/development/calibrate2/calibrate.cpp
@@ -0,0 +1,305 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include "calibrate.h"
+
+#include <qpe/resource.h>
+#include <qpe/qcopenvelope_qws.h>
+#include <qapplication.h>
+#include <qfile.h>
+#include <qtextstream.h>
+
+#include <qpainter.h>
+#include <qwindowsystem_qws.h>
+#include <qgfx_qws.h>
+
+
+Calibrate::Calibrate( QWidget* parent, const char * name, WFlags wf ) :
+                QDialog( parent, name, TRUE, wf | WStyle_Tool | WStyle_Customize | WStyle_StaysOnTop )
+{
+        showCross = true;
+        const int offset = 50;
+        QRect desk = qApp->desktop() ->geometry();
+        setGeometry( 0, 0, desk.width(), desk.height() );
+        if ( desk.height() < 250 ) {
+                int w = desk.height() / 3;
+                logo.convertFromImage( Resource::loadImage( "logo/opielogo" ).smoothScale( w, w ) );
+        } else {
+                logo = Resource::loadPixmap( "logo/opielogo" );
+        }
+
+        cal.xfb[0] = offset;
+        cal.yfb[0] = offset;
+        cal.xfb[1] = desk.width()-offset;
+        cal.yfb[1] = offset;
+        cal.xfb[2] = desk.width()-offset;
+        cal.yfb[2] = desk.height()-offset;
+        cal.xfb[3] = offset;
+        cal.yfb[3] = desk.height()-offset;
+        cal.xfb[4] = desk.width()/2;
+        cal.yfb[4] = desk.height()/2;
+
+        reset();
+}
+
+Calibrate::~Calibrate()
+{
+        store();
+}
+
+void Calibrate::reset()
+{
+        penPos = QPoint();
+        location = 0;
+        samples = 0;
+        crossPos = QPoint(cal.xfb[0], cal.yfb[0]);
+}
+
+
+void Calibrate::show()
+{
+        grabMouse();
+        QWSServer::mouseHandler() ->clearCalibration();
+        QDialog::show();
+}
+
+void Calibrate::store()
+{
+#ifndef QT_NO_TEXTSTREAM
+    QFile file("/etc/pointercal");
+    if ( file.open( IO_WriteOnly ) ) {
+        QTextStream t( &file );
+        t << cal.a[1] << " " << cal.a[2] << " " << cal.a[0] << " ";
+        t << cal.a[4] << " " << cal.a[5] << " " << cal.a[3] << " ";
+        t << cal.a[6] << endl;
+            } else
+#endif
+    {
+        qDebug("Could not save calibration");
+    }
+}
+
+void Calibrate::hide()
+{
+        if ( isVisible() )
+                store();
+        // hack - calibrate is a launcher dialog, but treated like a standalone app
+        {
+                QCopEnvelope e( "QPE/System", "closing(QString)" );
+                e << QString ( "calibrate" );
+        }
+        QDialog::hide();
+}
+
+QPoint Calibrate::fromDevice( const QPoint &p )
+{
+
+        QPoint np = qt_screen->mapFromDevice ( p, QSize( qt_screen->deviceWidth ( ), qt_screen->deviceHeight() ) );
+        qDebug("Calibrate::fromDevice(%d,%d) -> %d,%d", p.x(), p.y(), np.x(), np.y());
+        return np;
+}
+
+bool Calibrate::performCalculation(void)
+{
+        int j;
+        float n, x, y, x2, y2, xy, z, zx, zy;
+        float det, a, b, c, e, f, i;
+        float scaling = 65536.0;
+
+        //qDebug("Top left : X = %4d Y = %4d", cal.x[0], cal.y[0]);
+        //qDebug("Top right: X = %4d Y = %4d", cal.x[1], cal.y[1]);
+        //qDebug("Bot left : X = %4d Y = %4d", cal.x[2], cal.y[2]);
+        //qDebug("Bot right: X = %4d Y = %4d", cal.x[3], cal.y[3]);
+        //qDebug("Middle: X = %4d Y = %4d", cal.x[4], cal.y[4]);
+
+        // Get sums for matrix
+        n = x = y = x2 = y2 = xy = 0;
+        for(j=0;j<5;j++) {
+                n += 1.0;
+                x += (float)cal.x[j];
+                y += (float)cal.y[j];
+                x2 += (float)(cal.x[j]*cal.x[j]);
+                y2 += (float)(cal.y[j]*cal.y[j]);
+                xy += (float)(cal.x[j]*cal.y[j]);
+        }
+
+        // Get determinant of matrix -- check if determinant is too small
+        det = n*(x2*y2 - xy*xy) + x*(xy*y - x*y2) + y*(x*xy - y*x2);
+        if(det < 0.1 && det > -0.1) {
+                qDebug("determinant is too small -- %f",det);
+                return false;
+        }
+
+        // Get elements of inverse matrix
+        a = (x2*y2 - xy*xy)/det;
+        b = (xy*y - x*y2)/det;
+        c = (x*xy - y*x2)/det;
+        e = (n*y2 - y*y)/det;
+        f = (x*y - n*xy)/det;
+        i = (n*x2 - x*x)/det;
+
+        // Get sums for x calibration
+        z = zx = zy = 0;
+        for(j=0;j<5;j++) {
+                z += (float)cal.xfb[j];
+                zx += (float)(cal.xfb[j]*cal.x[j]);
+                zy += (float)(cal.xfb[j]*cal.y[j]);
+        }
+
+        // Now multiply out to get the calibration for framebuffer x coord
+        cal.a[0] = (int)((a*z + b*zx + c*zy)*(scaling));
+        cal.a[1] = (int)((b*z + e*zx + f*zy)*(scaling));
+        cal.a[2] = (int)((c*z + f*zx + i*zy)*(scaling));
+
+        qDebug("%f %f %f",(a*z + b*zx + c*zy), (b*z + e*zx + f*zy), (c*z + f*zx + i*zy));
+
+        // Get sums for y calibration
+        z = zx = zy = 0;
+        for (j=0;j<5;j++) {
+                z += (float)cal.yfb[j];
+                zx += (float)(cal.yfb[j]*cal.x[j]);
+                zy += (float)(cal.yfb[j]*cal.y[j]);
+        }
+
+        // Now multiply out to get the calibration for framebuffer y coord
+        cal.a[3] = (int)((a*z + b*zx + c*zy)*(scaling));
+        cal.a[4] = (int)((b*z + e*zx + f*zy)*(scaling));
+        cal.a[5] = (int)((c*z + f*zx + i*zy)*(scaling));
+
+        qDebug("%f %f %f",(a*z + b*zx + c*zy), (b*z + e*zx + f*zy), (c*z + f*zx + i*zy));
+
+
+        // If we got here, we're OK, so assign scaling to a[6] and return
+        cal.a[6] = (int) scaling;
+
+        qDebug("Calibration constants: %d %d %d %d %d %d %d",
+                cal.a[0], cal.a[1], cal.a[2],
+                cal.a[3], cal.a[4], cal.a[5],
+                cal.a[6]);
+
+        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() ) {
+                p.drawPixmap( ( width() - logo.width() ) / 2, 0, logo );
+        }
+
+        y = height() / 2 + 15;
+
+        p.drawText( 0, y + height() / 8, width(), height() - y, AlignHCenter,
+                    tr( "Um den Touchscreen zu kalibrieren bitte\n"
+                        "mit dem Stift auf die Fadenkreuze tippen." ) );
+
+        QFont f = p.font();
+        f.setBold( TRUE );
+        p.setFont( f );
+        p.drawText( 0, y, width(), height() - y, AlignHCenter | WordBreak,
+                    tr( "Willkommen beim Ramses" ) );
+
+        if ( showCross ) {
+                p.drawRect( crossPos.x() - 1, crossPos.y() - 8, 2, 7 );
+                p.drawRect( crossPos.x() - 1, crossPos.y() + 1, 2, 7 );
+                p.drawRect( crossPos.x() - 8, crossPos.y() - 1, 7, 2 );
+                p.drawRect( crossPos.x() + 1, crossPos.y() - 1, 7, 2 );
+        }
+}
+
+void Calibrate::mouseMoveEvent( QMouseEvent *e)
+{
+qDebug("Calibrate::mouseMoveEvent(%d,%d)", e->pos().x(), e->pos().y());
+        penPos += e->pos();
+        samples++;
+}
+
+void Calibrate::mouseReleaseEvent( QMouseEvent *e )
+{
+qDebug("Calibrate::mouseReleaseEvent(%d,%d)", e->pos().x(), e->pos().y());
+        penPos += e->pos();
+        samples++;
+        penPos /= samples;
+
+        if (location < 5) {
+qDebug(" entering %d samples as penPos %d,%d", samples, penPos.x(), penPos.y() );
+                cal.x[location] = e->pos().x();
+                cal.y[location] = e->pos().y();
+                location++;
+                penPos  = QPoint();
+                samples = 0;
+        }
+        if (location < 5) {
+                moveCrosshair(QPoint(cal.xfb[location], cal.yfb[location]));
+        } else {
+                showCross = FALSE;
+                repaint( crossPos.x() - 8, crossPos.y() - 8, 16, 16 );
+                if (performCalculation()) {
+                        hide();
+                        emit accept();
+                } else {
+                        qDebug("nochmal");
+                        reset();
+                }
+        }
+}
+
+#if 0
+
+# ts_calibrate
+xres = 240, yres = 320
+Top left : X =  822 Y =  750
+Top right: X =  806 Y =  242
+Bot right: X =  209 Y =  255
+Bot left : X =  216 Y =  754
+Middle: X =  518 Y =  504
+261.248383 -0.003901 -0.277929
+343.781494 -0.365597 0.008400
+Calibration constants: 17121174 -255 -18214 22530064 -23959 550 65536
+# cat /etc/pointercal
+-255 -18214 17121174 -23959 550 22530064 65536
+
+
+# calibrate -qws
+xres = 240, yres = 320
+Top left : X =  814 Y =  759
+Top right: X =  817 Y =  247
+Bot left : X =  205 Y =  270
+Bot right: X =  200 Y =  760
+Middle: X =  511 Y =  507
+264.857605 -0.005462 -0.279346
+344.296326 -0.358942 -0.002853
+Calibration constants: 17357708 -357 -18307 22563804 -23523 -186 65536
+# cat /etc/pointercal
+-357 -18307 17357708 -23523 -186 22563804 65536
+
+#endif
diff --git a/development/calibrate2/calibrate.h b/development/calibrate2/calibrate.h
new file mode 100644
index 0000000..56c19e4
--- a/dev/null
+++ b/development/calibrate2/calibrate.h
@@ -0,0 +1,65 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include <qwsmouse_qws.h>
+
+#if defined(Q_WS_QWS) || defined(_WS_QWS_)
+
+#include <qdialog.h>
+#include <qpixmap.h>
+
+struct calibration {
+        int x[5], xfb[5];
+        int y[5], yfb[5];
+        int a[7];
+};
+
+class Calibrate : public QDialog
+{
+    Q_OBJECT
+public:
+    Calibrate(QWidget* parent=0, const char * name=0, WFlags=0);
+    ~Calibrate();
+
+    void show();
+    void hide();
+
+private:
+    QPoint fromDevice( const QPoint &p );
+    bool performCalculation(void);
+    void moveCrosshair( QPoint pt );
+    void paintEvent( QPaintEvent * );
+    void mouseMoveEvent( QMouseEvent * );
+    void mouseReleaseEvent( QMouseEvent * );
+    struct calibration cal;
+
+private:
+    void store();
+    void reset();
+    QPixmap logo;
+    QPixmap saveUnder;
+    bool showCross;
+    QPoint crossPos;
+    QPoint penPos;
+    int samples;
+    int location;
+};
+
+#endif // _WS_QWS_