Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 379 insertions, 0 deletions

diff --git a/kcontrol/joystick/joywidget.cpp b/kcontrol/joystick/joywidget.cpp
new file mode 100644
index 000000000..a4d42e3f1
--- /dev/null
+++ b/kcontrol/joystick/joywidget.cpp
@@ -0,0 +1,379 @@
+/***************************************************************************
+ *   Copyright (C) 2003 by Martin Koller                                   *
+ *   m.koller@surfeu.at                                                    *
+ *   This file is part of the KDE Control Center Module for Joysticks      *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
+ ***************************************************************************/
+#include "joywidget.h"
+#include "joydevice.h"
+#include "poswidget.h"
+#include "caldialog.h"
+
+#include <qhbox.h>
+#include <qvbox.h>
+#include <qtable.h>
+#include <qlabel.h>
+#include <qcombobox.h>
+#include <qlistbox.h>
+#include <qcheckbox.h>
+#include <qtimer.h>
+#include <qfontmetrics.h>
+#include <qpushbutton.h>
+
+#include <klocale.h>
+#include <kdialog.h>
+#include <kmessagebox.h>
+#include <kiconloader.h>
+
+//--------------------------------------------------------------
+static QString PRESSED = I18N_NOOP("PRESSED");
+//--------------------------------------------------------------
+
+JoyWidget::JoyWidget(QWidget *parent, const char *name)
+ : QWidget(parent, name), idle(0), joydev(0)
+{
+  QVBox *mainVbox = new QVBox(parent);
+  mainVbox->setSpacing(KDialog::spacingHint());
+
+  // create area to show an icon + message if no joystick was detected
+  {
+    messageBox = new QHBox(mainVbox);
+    messageBox->setSpacing(KDialog::spacingHint());
+    QLabel *icon = new QLabel(messageBox);
+    icon->setPixmap(KGlobal::iconLoader()->loadIcon("messagebox_warning", KIcon::NoGroup,
+                                                    KIcon::SizeMedium, KIcon::DefaultState, 0, true));
+    icon->setFixedSize(icon->sizeHint());
+    message = new QLabel(messageBox);
+    messageBox->hide();
+  }
+
+  QHBox *devHbox = new QHBox(mainVbox);
+  new QLabel(i18n("Device:"), devHbox);
+  device = new QComboBox(true, devHbox);
+  device->setInsertionPolicy(QComboBox::NoInsertion);
+  connect(device, SIGNAL(activated(const QString &)), this, SLOT(deviceChanged(const QString &)));
+  devHbox->setStretchFactor(device, 3);
+
+  QHBox *hbox = new QHBox(mainVbox);
+  hbox->setSpacing(KDialog::spacingHint());
+
+  QVBox *vboxLeft = new QVBox(hbox);
+  vboxLeft->setSpacing(KDialog::spacingHint());
+
+  new QLabel(i18n("Position:"), vboxLeft);
+  xyPos = new PosWidget(vboxLeft);
+  trace = new QCheckBox(i18n("Show trace"), mainVbox);
+  connect(trace, SIGNAL(toggled(bool)), this, SLOT(traceChanged(bool)));
+
+  QVBox *vboxMid = new QVBox(hbox);
+  vboxMid->setSpacing(KDialog::spacingHint());
+
+  QVBox *vboxRight = new QVBox(hbox);
+  vboxRight->setSpacing(KDialog::spacingHint());
+
+  // calculate the column width we need
+  QFontMetrics fm(font());
+  int colWidth = QMAX(fm.width(PRESSED), fm.width("-32767")) + 10;  // -32767 largest string
+
+  new QLabel(i18n("Buttons:"), vboxMid);
+  buttonTbl = new QTable(0, 1, vboxMid);
+  buttonTbl->setReadOnly(true);
+  buttonTbl->horizontalHeader()->setLabel(0, i18n("State"));
+  buttonTbl->horizontalHeader()->setClickEnabled(false);
+  buttonTbl->horizontalHeader()->setResizeEnabled(false);
+  buttonTbl->verticalHeader()->setClickEnabled(false);
+  buttonTbl->verticalHeader()->setResizeEnabled(false);
+  buttonTbl->setColumnWidth(0, colWidth);
+
+  new QLabel(i18n("Axes:"), vboxRight);
+  axesTbl = new QTable(0, 1, vboxRight);
+  axesTbl->setReadOnly(true);
+  axesTbl->horizontalHeader()->setLabel(0, i18n("Value"));
+  axesTbl->horizontalHeader()->setClickEnabled(false);
+  axesTbl->horizontalHeader()->setResizeEnabled(false);
+  axesTbl->verticalHeader()->setClickEnabled(false);
+  axesTbl->verticalHeader()->setResizeEnabled(false);
+  axesTbl->setColumnWidth(0, colWidth);
+
+  // calibrate button
+  calibrate = new QPushButton(i18n("Calibrate"), mainVbox);
+  connect(calibrate, SIGNAL(clicked()), this, SLOT(calibrateDevice()));
+  calibrate->setEnabled(false);
+
+  // set up a timer for idle processing of joystick events
+  idle = new QTimer(this);
+  connect(idle, SIGNAL(timeout()), this, SLOT(checkDevice()));
+
+  // check which devicefiles we have
+  init();
+
+  vboxLeft->adjustSize();
+  vboxMid->adjustSize();
+  vboxRight->adjustSize();
+  hbox->adjustSize();
+  mainVbox->adjustSize();
+
+  setMinimumSize(mainVbox->size());
+}
+
+//--------------------------------------------------------------
+
+JoyWidget::~JoyWidget()
+{
+  delete joydev;
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::init()
+{
+  // check which devicefiles we have
+  int i;
+  bool first = true;
+  char dev[30];
+
+  device->clear();
+  buttonTbl->setNumRows(0);
+  axesTbl->setNumRows(0);
+
+  for (i = 0; i < 5; i++)  // check the first 5 devices
+  {
+    sprintf(dev, "/dev/js%d", i);  // first look in /dev
+    JoyDevice *joy = new JoyDevice(dev);
+
+    if ( joy->open() != JoyDevice::SUCCESS )
+    {
+      delete joy;
+      sprintf(dev, "/dev/input/js%d", i);  // then look in /dev/input
+      joy = new JoyDevice(dev);
+
+      if ( joy->open() != JoyDevice::SUCCESS )
+      {
+        delete joy;
+        continue;    // try next number
+      }
+    }
+
+    // we found one
+
+    device->insertItem(QString("%1 (%2)").arg(joy->text()).arg(joy->device()));
+
+    // display values for first device
+    if ( first )
+    {
+      showDeviceProps(joy);  // this sets the joy object into this->joydev
+      first = false;
+    }
+    else
+      delete joy;
+  }
+
+  /* KDE 4: Remove this check(and i18n) when all KCM wrappers properly test modules */
+  if ( device->count() == 0 )
+  {
+    messageBox->show();
+    message->setText(QString("<qt><b>%1</b></qt>").arg(
+      i18n("No joystick device automatically found on this computer.<br>"
+           "Checks were done in /dev/js[0-4] and /dev/input/js[0-4]<br>"
+           "If you know that there is one attached, please enter the correct device file.")));
+  }
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::traceChanged(bool state)
+{
+  xyPos->showTrace(state);
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::restoreCurrDev()
+{
+  if ( !joydev )  // no device open
+  {
+    device->setCurrentText("");
+    calibrate->setEnabled(false);
+  }
+  else
+  {
+    // try to find the current open device in the combobox list
+    QListBoxItem *item;
+    item = device->listBox()->findItem(joydev->device(), Qt::Contains);
+
+    if ( !item )  // the current open device is one the user entered (not in the list)
+      device->setCurrentText(joydev->device());
+    else
+      device->setCurrentText(item->text());
+  }
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::deviceChanged(const QString &dev)
+{
+  // find "/dev" in given string
+  int start, stop;
+  QString devName;
+
+  if ( (start = dev.find("/dev")) == -1 )
+  {
+    KMessageBox::sorry(this,
+      i18n("The given device name is invalid (does not contain /dev).\n"
+           "Please select a device from the list or\n"
+           "enter a device file, like /dev/js0."), i18n("Unknown Device"));
+
+    restoreCurrDev();
+    return;
+  }
+
+  if ( (stop = dev.find(")", start)) != -1 )  // seems to be text selected from our list
+    devName = dev.mid(start, stop - start);
+  else
+    devName = dev.mid(start);
+
+  if ( joydev && (devName == joydev->device()) ) return;  // user selected the current device; ignore it
+
+  JoyDevice *joy = new JoyDevice(devName);
+  JoyDevice::ErrorCode ret = joy->open();
+
+  if ( ret != JoyDevice::SUCCESS )
+  {
+    KMessageBox::error(this, joy->errText(ret), i18n("Device Error"));
+
+    delete joy;
+    restoreCurrDev();
+    return;
+  }
+
+  showDeviceProps(joy);
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::showDeviceProps(JoyDevice *joy)
+{
+  joydev = joy;
+
+  buttonTbl->setNumRows(joydev->numButtons());
+
+  axesTbl->setNumRows(joydev->numAxes());
+  if ( joydev->numAxes() >= 2 )
+  {
+    axesTbl->verticalHeader()->setLabel(0, "1(x)");
+    axesTbl->verticalHeader()->setLabel(1, "2(y)");
+  }
+
+  calibrate->setEnabled(true);
+  idle->start(0);
+
+  // make both tables use the same space for header; this looks nicer
+  buttonTbl->setLeftMargin(QMAX(buttonTbl->verticalHeader()->width(),
+                                  axesTbl->verticalHeader()->width()));
+  axesTbl->setLeftMargin(buttonTbl->verticalHeader()->width());
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::checkDevice()
+{
+  if ( !joydev ) return;  // no open device yet
+
+  JoyDevice::EventType type;
+  int number, value;
+
+  if ( !joydev->getEvent(type, number, value) )
+    return;
+
+  if ( type == JoyDevice::BUTTON )
+  {
+    if ( value == 0 )  // button release
+      buttonTbl->setText(number, 0, "-");
+    else
+      buttonTbl->setText(number, 0, PRESSED);
+  }
+
+  if ( type == JoyDevice::AXIS )
+  {
+    if ( number == 0 ) // x-axis
+      xyPos->changeX(value);
+
+    if ( number == 1 ) // y-axis
+      xyPos->changeY(value);
+
+    axesTbl->setText(number, 0, QString("%1").arg(int(value)));
+  }
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::calibrateDevice()
+{
+  if ( !joydev ) return;  // just to be save
+
+  JoyDevice::ErrorCode ret = joydev->initCalibration();
+
+  if ( ret != JoyDevice::SUCCESS )
+  {
+    KMessageBox::error(this, joydev->errText(ret), i18n("Communication Error"));
+    return;
+  }
+
+  if ( KMessageBox::messageBox(this, KMessageBox::Information,
+        i18n("<qt>Calibration is about to check the precision.<br><br>"
+             "<b>Please move all axes to their center position and then "
+             "do not touch the joystick anymore.</b><br><br>"
+             "Click OK to start the calibration.</qt>"),
+        i18n("Calibration"),
+        KStdGuiItem::ok(), KStdGuiItem::cancel()) != KMessageBox::Ok )
+    return;
+
+  idle->stop();  // stop the joystick event getting; this must be done inside the calibrate dialog
+
+  CalDialog dlg(this, joydev);
+  dlg.calibrate();
+
+  // user cancelled somewhere during calibration, therefore the device is in a bad state
+  if ( dlg.result() == QDialog::Rejected )
+    joydev->restoreCorr();
+
+  idle->start(0);  // continue with event getting
+}
+
+//--------------------------------------------------------------
+
+void JoyWidget::resetCalibration()
+{
+  if ( !joydev ) return;  // just to be save
+
+  JoyDevice::ErrorCode ret = joydev->restoreCorr();
+
+  if ( ret != JoyDevice::SUCCESS )
+  {
+    KMessageBox::error(this, joydev->errText(ret), i18n("Communication Error"));
+  }
+  else
+  {
+    KMessageBox::information(this,
+      i18n("Restored all calibration values for joystick device %1.").arg(joydev->device()),
+      i18n("Calibration Success"));
+  }
+}
+
+//--------------------------------------------------------------
+
+#include "joywidget.moc"