kde-workspace/kcontrol/keyboard/kcmmisc.cpp
2015-09-01 04:37:19 +03:00

237 lines
7.5 KiB
C++

/*
* kcmmisc.cpp
*
* Copyright (c) 1997 Patrick Dowler dowler@morgul.fsh.uvic.ca
*
* Layout management, cleanups:
* Copyright (c) 1999 Dirk A. Mueller <dmuell@gmx.net>
*
* Requires the Qt widget libraries, available at no cost at
* http://www.troll.no/
*
* 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 "kcmmisc.h"
#include "ui_kcmmiscwidget.h"
#include <math.h>
#include <QtGui/QCheckBox>
#include <QtGui/QWhatsThis>
#include <QtGui/qx11info_x11.h>
#include <klocale.h>
#include <kconfiggroup.h>
#include <knuminput.h>
#include <X11/Xlib.h>
KCMiscKeyboardWidget::KCMiscKeyboardWidget(QWidget *parent)
: QWidget(parent),
ui(*new Ui_KeyboardConfigWidget)
{
ui.setupUi(this);
ui.delay->setRange(100, 5000, 50);
ui.delay->setSliderEnabled(false);
ui.rate->setRange(0.2, 50, 5, false);
sliderMax = (int)floor (0.5 + 2*(log(5000.0L)-log(100.0L)) / (log(5000.0L)-log(4999.0L)));
ui.delaySlider->setRange(0, sliderMax);
ui.delaySlider->setSingleStep(sliderMax/100);
ui.delaySlider->setPageStep(sliderMax/10);
ui.delaySlider->setTickInterval(sliderMax/10);
ui.rateSlider->setRange(20, 5000);
ui.rateSlider->setSingleStep(30);
ui.rateSlider->setPageStep(500);
ui.rateSlider->setTickInterval(498);
connect(ui.keyboardRepeatButtonGroup, SIGNAL(clicked()), this, SLOT(changed()));
connect(ui.keyboardRepeatButtonGroup, SIGNAL(changed(int)), this, SLOT(keyboardRepeatStateChanged(int)));
connect(ui.delay, SIGNAL(valueChanged(int)), this, SLOT(delaySpinboxChanged(int)));
connect(ui.delaySlider, SIGNAL(valueChanged(int)), this, SLOT(delaySliderChanged(int)));
connect(ui.rate, SIGNAL(valueChanged(double)), this, SLOT(rateSpinboxChanged(double)));
connect(ui.rateSlider, SIGNAL(valueChanged(int)), this, SLOT(rateSliderChanged(int)));
connect(ui.click, SIGNAL(valueChanged(int)), this, SLOT(changed()));
connect(ui.numlockButtonGroup, SIGNAL(released(int)), this, SLOT(changed()));
// Not sure why we need this - if XKB is not found the whole keyboard module won't be compiled
//#if !defined(HAVE_XTEST) && !defined(HAVE_XKB)
// ui.numlockButtonGroup->setDisabled( true );
//#endif
//#if !defined(HAVE_XKB) && !defined(HAVE_XF86MISC)
// ui.delay->setDisabled( true );
// ui.rate->setDisabled( true );
//#endif
}
KCMiscKeyboardWidget::~KCMiscKeyboardWidget()
{
delete &ui;
}
int KCMiscKeyboardWidget::getClick()
{
return ui.click->value();
}
// set the slider and LCD values
void KCMiscKeyboardWidget::setRepeat(TriState keyboardRepeat, int delay_, double rate_)
{
TriStateHelper::setTriState( ui.keyboardRepeatButtonGroup, keyboardRepeat );
// ui.repeatBox->setChecked(r == AutoRepeatModeOn);
ui.delay->setValue(delay_);
ui.rate->setValue(rate_);
delaySpinboxChanged(delay_);
rateSpinboxChanged(rate_);
}
void KCMiscKeyboardWidget::setClickVolume(int v)
{
ui.click->setValue(v);
}
TriState TriStateHelper::getTriState(const KButtonGroup* group)
{
int selected = group->selected();
return selected < 0 ? STATE_UNCHANGED : getTriState(selected);
}
void TriStateHelper::setTriState(KButtonGroup* group, TriState state)
{
group->setSelected( getInt(state) );
}
void KCMiscKeyboardWidget::load()
{
KConfigGroup config(KSharedConfig::openConfig("kcminputrc", KConfig::NoGlobals), "Keyboard");
ui.delay->blockSignals(true);
ui.rate->blockSignals(true);
ui.click->blockSignals(true);
// need to read as string to support old "true/false" parameter
QString key = config.readEntry("KeyboardRepeating", TriStateHelper::getString(STATE_ON));
if( key == "true" || key == TriStateHelper::getString(STATE_ON)) {
keyboardRepeat = STATE_ON;
}
else if( key == "false" || key == TriStateHelper::getString(STATE_OFF)) {
keyboardRepeat = STATE_OFF;
}
else {
keyboardRepeat = STATE_UNCHANGED;
}
// keyboardRepeat = (key ? AutoRepeatModeOn : AutoRepeatModeOff);
float delay = config.readEntry( "RepeatDelay", 660 );
float rate = config.readEntry( "RepeatRate", 25. );
setRepeat(keyboardRepeat, delay, rate);
XKeyboardState kbd;
XGetKeyboardControl(QX11Info::display(), &kbd);
clickVolume = config.readEntry("ClickVolume", kbd.key_click_percent);
setClickVolume(clickVolume);
// setRepeat(kbd.global_auto_repeat, ui.delay->value(), ui.rate->value());
numlockState = TriStateHelper::getTriState(config.readEntry( "NumLock", TriStateHelper::getInt(STATE_UNCHANGED) ));
TriStateHelper::setTriState( ui.numlockButtonGroup, numlockState );
ui.delay->blockSignals(false);
ui.rate->blockSignals(false);
ui.click->blockSignals(false);
}
void KCMiscKeyboardWidget::save()
{
KConfigGroup config(KSharedConfig::openConfig("kcminputrc", KConfig::NoGlobals), "Keyboard");
clickVolume = getClick();
keyboardRepeat = TriStateHelper::getTriState(ui.keyboardRepeatButtonGroup);
numlockState = TriStateHelper::getTriState(ui.numlockButtonGroup);
config.writeEntry("ClickVolume",clickVolume);
config.writeEntry("KeyboardRepeating", TriStateHelper::getInt(keyboardRepeat));
config.writeEntry("RepeatRate", ui.rate->value() );
config.writeEntry("RepeatDelay", ui.delay->value() );
config.writeEntry("NumLock", TriStateHelper::getInt(numlockState) );
config.sync();
}
void KCMiscKeyboardWidget::defaults()
{
setClickVolume(50);
setRepeat(STATE_ON, 660, 25);
TriStateHelper::setTriState( ui.numlockButtonGroup, STATE_UNCHANGED );
emit changed(true);
}
QString KCMiscKeyboardWidget::quickHelp() const
{
return QString();
/* "<h1>Keyboard</h1> This module allows you to choose options"
" for the way in which your keyboard works. The actual effect of"
" setting these options depends upon the features provided by your"
" keyboard hardware and the X server on which KDE is running.<p>"
" For example, you may find that changing the key click volume"
" has no effect because this feature is not available on your system." */
}
void KCMiscKeyboardWidget::delaySliderChanged (int value) {
double alpha = sliderMax / (log(5000.0L) - log(100.0L));
double linearValue = exp (value/alpha + log(100.0L));
ui.delay->setValue((int)floor(0.5 + linearValue));
emit changed(true);
}
void KCMiscKeyboardWidget::delaySpinboxChanged (int value) {
double alpha = sliderMax / (log(5000.0L) - log(100.0L));
double logVal = alpha * (log((double)value)-log(100.0L));
ui.delaySlider->setValue ((int)floor (0.5 + logVal));
emit changed(true);
}
void KCMiscKeyboardWidget::rateSliderChanged (int value) {
ui.rate->setValue(value/100.0);
emit changed(true);
}
void KCMiscKeyboardWidget::rateSpinboxChanged (double value) {
ui.rateSlider->setValue ((int)(value*100));
emit changed(true);
}
void KCMiscKeyboardWidget::changed()
{
emit changed(true);
}
void KCMiscKeyboardWidget::keyboardRepeatStateChanged(int selection)
{
bool enabled = selection == TriStateHelper::getInt(STATE_ON);
ui.keyboardRepeatParamsGroupBox->setEnabled(enabled);
changed();
}