workspace/kcontrol/hardware/joystick/caldialog.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2003 by Martin Koller
   3  *   m.koller@surfeu.at
   4  *   This file is part of the KDE Control Center Module for Joysticks
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the
  18  *   Free Software Foundation, Inc.,
  19  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20  ***************************************************************************/
  21
  22 #include "caldialog.h"
  23 #include "joydevice.h"
  24
  25 #include <QLabel>
  26 #include <QTimer>
  27 #include <QApplication>
  28
  29 #include <klocale.h>
  30 #include <kmessagebox.h>
  31 #include <kdebug.h>
  32 #include <kvbox.h>
  33 //--------------------------------------------------------------
  34
  35 CalDialog::CalDialog(QWidget *parent, JoyDevice *joy)
  36   : KDialog( parent ),
  37     joydev(joy)
  38 {
  39   setObjectName( "calibrateDialog" );
  40   setModal( true );
  41   setCaption( i18n("Calibration") );
  42   setButtons( Cancel | User1 );
  43   setDefaultButton( User1 );
  44   setButtonGuiItem( User1, KGuiItem( i18n("Next") ) );
  45   showButtonSeparator( true );
  46
  47   KVBox *main = new KVBox( this );
  48   setMainWidget( main );
  49
  50   text = new QLabel(main);
  51   text->setMinimumHeight(200);
  52   valueLbl = new QLabel(main);
  53   connect(this,SIGNAL(user1Clicked()),this,SLOT(slotUser1()));
  54 }
  55
  56 //--------------------------------------------------------------
  57
  58 void CalDialog::calibrate()
  59 {
  60   text->setText(i18n("Please wait a moment to calculate the precision"));
  61   setResult(-1);
  62   show();
  63
  64   // calibrate precision (which min,max delivers the joystick in its center position)
  65   // get values through the normal idle procedure
  66   QTimer ti;
  67   ti.setSingleShot(true); // single shot
  68   ti.start(2000);         // in 2 seconds
  69
  70   // normally I'd like to hide the 'Next' button in this step,
  71   // but it does not work - which means: in the steps after the first,
  72   // the 'Next' button does not have the focus (to be the default button)
  73
  74   do
  75   {
  76     qApp->processEvents(QEventLoop::AllEvents, 2000);
  77   }
  78   while ( ti.isActive() && (result() != QDialog::Rejected) );
  79
  80   if ( result() == QDialog::Rejected ) return;  // user cancelled the dialog
  81
  82   joydev->calcPrecision();
  83
  84   int i, lastVal;
  85   int min[2], center[2], max[2];
  86   QString hint;
  87
  88   for (i = 0; i < joydev->numAxes(); i++)
  89   {
  90     if ( i == 0 )
  91       hint = i18n("(usually X)");
  92     else if ( i == 1 )
  93       hint = i18n("(usually Y)");
  94     else
  95       hint = "";
  96
  97     // minimum position
  98     text->setText(i18n("<qt>Calibration is about to check the value range your device delivers.<br /><br />"
  99                        "Please move <b>axis %1 %2</b> on your device to the <b>minimum</b> position.<br /><br />"
 100                        "Press any button on the device or click on the 'Next' button "
 101                        "to continue with the next step.</qt>", i+1, hint));
 102     waitButton(i, true, lastVal);
 103
 104     if ( result() == QDialog::Rejected ) return;  // user cancelled the dialog
 105
 106     joydev->resetMinMax(i, lastVal);
 107     if ( result() != -2 ) waitButton(i, false, lastVal);
 108
 109     if ( result() == QDialog::Rejected ) return;  // user cancelled the dialog
 110
 111     min[0] = joydev->axisMin(i);
 112     min[1] = joydev->axisMax(i);
 113
 114     // center position
 115     text->setText(i18n("<qt>Calibration is about to check the value range your device delivers.<br /><br />"
 116                        "Please move <b>axis %1 %2</b> on your device to the <b>center</b> position.<br /><br />"
 117                        "Press any button on the device or click on the 'Next' button "
 118                        "to continue with the next step.</qt>", i+1, hint));
 119     waitButton(i, true, lastVal);
 120
 121     if ( result() == QDialog::Rejected ) return;  // user cancelled the dialog
 122
 123     joydev->resetMinMax(i, lastVal);
 124     if ( result() != -2 ) waitButton(i, false, lastVal);
 125
 126     if ( result() == QDialog::Rejected ) return;  // user canceled the dialog
 127
 128     center[0] = joydev->axisMin(i);
 129     center[1] = joydev->axisMax(i);
 130
 131     // maximum position
 132     text->setText(i18n("<qt>Calibration is about to check the value range your device delivers.<br /><br />"
 133                        "Please move <b>axis %1 %2</b> on your device to the <b>maximum</b> position.<br /><br />"
 134                        "Press any button on the device or click on the 'Next' button "
 135                        "to continue with the next step.</qt>", i+1, hint));
 136     waitButton(i, true, lastVal);
 137
 138     if ( result() == QDialog::Rejected ) return;  // user cancelled the dialog
 139
 140     joydev->resetMinMax(i, lastVal);
 141     if ( result() != -2 ) waitButton(i, false, lastVal);
 142
 143     if ( result() == QDialog::Rejected ) return;  // user canceled the dialog
 144
 145     max[0] = joydev->axisMin(i);
 146     max[1] = joydev->axisMax(i);
 147
 148     joydev->calcCorrection(i, min, center, max);
 149   }
 150
 151   JoyDevice::ErrorCode ret = joydev->applyCalibration();
 152
 153   if ( ret != JoyDevice::SUCCESS )
 154   {
 155     KMessageBox::error(this, joydev->errText(ret), i18n("Communication Error"));
 156     reject();
 157   }
 158
 159   KMessageBox::information(this, i18n("You have successfully calibrated your device"), i18n("Calibration Success"));
 160   accept();
 161 }
 162
 163 //--------------------------------------------------------------
 164
 165 void CalDialog::waitButton(int axis, bool press, int &lastVal)
 166 {
 167   JoyDevice::EventType type;
 168   int number, value;
 169   bool button = false;
 170   lastVal = 0;
 171
 172   setResult(-1);
 173   // loop until the user presses a button on the device or on the dialog
 174   do
 175   {
 176     qApp->processEvents(QEventLoop::AllEvents, 100);
 177
 178     if ( joydev->getEvent(type, number, value) )
 179     {
 180       button = ( (type == JoyDevice::BUTTON) && (press ? (value == 1) : (value == 0)) );
 181
 182       if ( (type == JoyDevice::AXIS) && (number == axis) )
 183         valueLbl->setText(i18n("Value Axis %1: %2", axis+1, lastVal = value));
 184     }
 185   }
 186   while ( !button && (result() == -1) );
 187 }
 188
 189 //--------------------------------------------------------------
 190 // Next button
 191
 192 void CalDialog::slotUser1()
 193 {
 194   setResult(-2);
 195 }
 196
 197 //--------------------------------------------------------------
 198
 199 #include "caldialog.moc"
 200
 201 //--------------------------------------------------------------