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tdebase/kcontrol/randr/krandrmodule.cpp

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/*
* Copyright (c) 2002,2003 Hamish Rodda <rodda@kde.org>
*
* 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 <tqapplication.h>
#include <tqbuttongroup.h>
#include <tqcheckbox.h>
#include <tqdesktopwidget.h>
#include <tqhbox.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqradiobutton.h>
#include <tqvbox.h>
#include <tqvbuttongroup.h>
#include <tqwhatsthis.h>
#include <kcmodule.h>
#include <kcombobox.h>
#include <kdebug.h>
#include <kdialog.h>
#include <kgenericfactory.h>
#include <kglobal.h>
#include <klocale.h>
#include "krandrmodule.h"
#include "krandrmodule.moc"
#include <X11/Xlib.h>
#include <X11/extensions/Xrandr.h>
// DLL Interface for kcontrol
typedef KGenericFactory<KRandRModule, TQWidget > KSSFactory;
K_EXPORT_COMPONENT_FACTORY (kcm_randr, KSSFactory("krandr") )
extern "C"
{
KDE_EXPORT void init_randr()
{
KRandRModule::performApplyOnStartup();
}
KDE_EXPORT bool test_randr()
{
int eventBase, errorBase;
if( XRRQueryExtension(qt_xdisplay(), &eventBase, &errorBase ) )
return true;
return false;
}
}
void KRandRModule::performApplyOnStartup()
{
KConfig config("kcmrandrrc", true);
if (RandRDisplay::applyOnStartup(config))
{
// Load settings and apply appropriate config
RandRDisplay display;
if (display.isValid() && display.loadDisplay(config))
display.applyProposed(false);
}
}
KRandRModule::KRandRModule(TQWidget *parent, const char *name, const TQStringList&)
: KCModule(parent, name)
, m_changed(false)
{
if (!isValid()) {
TQVBoxLayout *topLayout = new TQVBoxLayout(this);
topLayout->addWidget(new TQLabel(i18n("<qt>Your X server does not support resizing and rotating the display. Please update to version 4.3 or greater. You need the X Resize And Rotate extension (RANDR) version 1.1 or greater to use this feature.</qt>"), this));
kdWarning() << "Error: " << errorCode() << endl;
return;
}
TQVBoxLayout* topLayout = new TQVBoxLayout(this, 0, KDialog::spacingHint());
TQHBox* screenBox = new TQHBox(this);
topLayout->addWidget(screenBox);
TQLabel *screenLabel = new TQLabel(i18n("Settings for screen:"), screenBox);
m_screenSelector = new KComboBox(screenBox);
for (int s = 0; s < numScreens(); s++) {
m_screenSelector->insertItem(i18n("Screen %1").tqarg(s+1));
}
m_screenSelector->setCurrentItem(currentScreenIndex());
screenLabel->setBuddy( m_screenSelector );
TQWhatsThis::add(m_screenSelector, i18n("The screen whose settings you would like to change can be selected using this drop-down list."));
connect(m_screenSelector, TQT_SIGNAL(activated(int)), TQT_SLOT(slotScreenChanged(int)));
if (numScreens() <= 1)
m_screenSelector->setEnabled(false);
TQHBox* sizeBox = new TQHBox(this);
topLayout->addWidget(sizeBox);
TQLabel *sizeLabel = new TQLabel(i18n("Screen size:"), sizeBox);
m_sizeCombo = new KComboBox(sizeBox);
TQWhatsThis::add(m_sizeCombo, i18n("The size, otherwise known as the resolution, of your screen can be selected from this drop-down list."));
connect(m_sizeCombo, TQT_SIGNAL(activated(int)), TQT_SLOT(slotSizeChanged(int)));
sizeLabel->setBuddy( m_sizeCombo );
TQHBox* refreshBox = new TQHBox(this);
topLayout->addWidget(refreshBox);
TQLabel *rateLabel = new TQLabel(i18n("Refresh rate:"), refreshBox);
m_refreshRates = new KComboBox(refreshBox);
TQWhatsThis::add(m_refreshRates, i18n("The refresh rate of your screen can be selected from this drop-down list."));
connect(m_refreshRates, TQT_SIGNAL(activated(int)), TQT_SLOT(slotRefreshChanged(int)));
rateLabel->setBuddy( m_refreshRates );
m_rotationGroup = new TQButtonGroup(2, Qt::Horizontal, i18n("Orientation (degrees counterclockwise)"), this);
topLayout->addWidget(m_rotationGroup);
m_rotationGroup->setRadioButtonExclusive(true);
TQWhatsThis::add(m_rotationGroup, i18n("The options in this section allow you to change the rotation of your screen."));
m_applyOnStartup = new TQCheckBox(i18n("Apply settings on KDE startup"), this);
topLayout->addWidget(m_applyOnStartup);
TQWhatsThis::add(m_applyOnStartup, i18n("If this option is enabled the size and orientation settings will be used when KDE starts."));
connect(m_applyOnStartup, TQT_SIGNAL(clicked()), TQT_SLOT(setChanged()));
TQHBox* syncBox = new TQHBox(this);
syncBox->layout()->addItem(new TQSpacerItem(20, 1, TQSizePolicy::Maximum));
m_syncTrayApp = new TQCheckBox(i18n("Allow tray application to change startup settings"), syncBox);
topLayout->addWidget(syncBox);
TQWhatsThis::add(m_syncTrayApp, i18n("If this option is enabled, options set by the system tray applet will be saved and loaded when KDE starts instead of being temporary."));
connect(m_syncTrayApp, TQT_SIGNAL(clicked()), TQT_SLOT(setChanged()));
topLayout->addStretch(1);
// just set the "apply settings on startup" box
load();
m_syncTrayApp->setEnabled(m_applyOnStartup->isChecked());
slotScreenChanged(TQApplication::desktop()->primaryScreen());
setButtons(KCModule::Apply);
}
void KRandRModule::addRotationButton(int thisRotation, bool checkbox)
{
Q_ASSERT(m_rotationGroup);
if (!checkbox) {
TQRadioButton* thisButton = new TQRadioButton(RandRScreen::rotationName(thisRotation), m_rotationGroup);
thisButton->setEnabled(thisRotation & currentScreen()->rotations());
connect(thisButton, TQT_SIGNAL(clicked()), TQT_SLOT(slotRotationChanged()));
} else {
TQCheckBox* thisButton = new TQCheckBox(RandRScreen::rotationName(thisRotation), m_rotationGroup);
thisButton->setEnabled(thisRotation & currentScreen()->rotations());
connect(thisButton, TQT_SIGNAL(clicked()), TQT_SLOT(slotRotationChanged()));
}
}
void KRandRModule::slotScreenChanged(int screen)
{
setCurrentScreen(screen);
// Clear resolutions
m_sizeCombo->clear();
// Add new resolutions
for (int i = 0; i < currentScreen()->numSizes(); i++) {
m_sizeCombo->insertItem(i18n("%1 x %2").tqarg(currentScreen()->pixelSize(i).width()).tqarg(currentScreen()->pixelSize(i).height()));
// Aspect ratio
/* , aspect ratio %5)*/
/*.arg((double)currentScreen()->size(i).mwidth / (double)currentScreen()->size(i).mheight))*/
}
// Clear rotations
for (int i = m_rotationGroup->count() - 1; i >= 0; i--)
m_rotationGroup->remove(m_rotationGroup->find(i));
// Create rotations
for (int i = 0; i < RandRScreen::OrientationCount; i++)
addRotationButton(1 << i, i > RandRScreen::RotationCount - 1);
populateRefreshRates();
update();
setChanged();
}
void KRandRModule::slotRotationChanged()
{
if (m_rotationGroup->find(0)->isOn())
currentScreen()->proposeRotation(RandRScreen::Rotate0);
else if (m_rotationGroup->find(1)->isOn())
currentScreen()->proposeRotation(RandRScreen::Rotate90);
else if (m_rotationGroup->find(2)->isOn())
currentScreen()->proposeRotation(RandRScreen::Rotate180);
else {
Q_ASSERT(m_rotationGroup->find(3)->isOn());
currentScreen()->proposeRotation(RandRScreen::Rotate270);
}
if (m_rotationGroup->find(4)->isOn())
currentScreen()->proposeRotation(currentScreen()->proposedRotation() ^ RandRScreen::ReflectX);
if (m_rotationGroup->find(5)->isOn())
currentScreen()->proposeRotation(currentScreen()->proposedRotation() ^ RandRScreen::ReflectY);
setChanged();
}
void KRandRModule::slotSizeChanged(int index)
{
int oldProposed = currentScreen()->proposedSize();
currentScreen()->proposeSize(index);
if (currentScreen()->proposedSize() != oldProposed) {
currentScreen()->proposeRefreshRate(0);
populateRefreshRates();
// Item with index zero is already selected
}
setChanged();
}
void KRandRModule::slotRefreshChanged(int index)
{
currentScreen()->proposeRefreshRate(index);
setChanged();
}
void KRandRModule::populateRefreshRates()
{
m_refreshRates->clear();
TQStringList rr = currentScreen()->refreshRates(currentScreen()->proposedSize());
m_refreshRates->setEnabled(rr.count());
for (TQStringList::Iterator it = rr.begin(); it != rr.end(); ++it)
m_refreshRates->insertItem(*it);
}
void KRandRModule::defaults()
{
load( true );
}
void KRandRModule::load()
{
load( false );
}
void KRandRModule::load( bool useDefaults )
{
if (!isValid())
return;
// Don't load screen configurations:
// It will be correct already if they wanted to retain their settings over KDE restarts,
// and if it isn't correct they have changed a) their X configuration, b) the screen
// with another program, or c) their hardware.
KConfig config("kcmrandrrc", true);
config.setReadDefaults( useDefaults );
m_oldApply = loadDisplay(config, false);
m_oldSyncTrayApp = syncTrayApp(config);
m_applyOnStartup->setChecked(m_oldApply);
m_syncTrayApp->setChecked(m_oldSyncTrayApp);
emit changed( useDefaults );
}
void KRandRModule::save()
{
if (!isValid())
return;
apply();
m_oldApply = m_applyOnStartup->isChecked();
m_oldSyncTrayApp = m_syncTrayApp->isChecked();
KConfig config("kcmrandrrc");
saveDisplay(config, m_oldApply, m_oldSyncTrayApp);
setChanged();
}
void KRandRModule::setChanged()
{
bool isChanged = (m_oldApply != m_applyOnStartup->isChecked()) || (m_oldSyncTrayApp != m_syncTrayApp->isChecked());
m_syncTrayApp->setEnabled(m_applyOnStartup->isChecked());
if (!isChanged)
for (int screenIndex = 0; screenIndex < numScreens(); screenIndex++) {
if (screen(screenIndex)->proposedChanged()) {
isChanged = true;
break;
}
}
if (isChanged != m_changed) {
m_changed = isChanged;
emit changed(m_changed);
}
}
void KRandRModule::apply()
{
if (m_changed) {
applyProposed();
update();
}
}
void KRandRModule::update()
{
m_sizeCombo->blockSignals(true);
m_sizeCombo->setCurrentItem(currentScreen()->proposedSize());
m_sizeCombo->blockSignals(false);
m_rotationGroup->blockSignals(true);
switch (currentScreen()->proposedRotation() & RandRScreen::RotateMask) {
case RandRScreen::Rotate0:
m_rotationGroup->setButton(0);
break;
case RandRScreen::Rotate90:
m_rotationGroup->setButton(1);
break;
case RandRScreen::Rotate180:
m_rotationGroup->setButton(2);
break;
case RandRScreen::Rotate270:
m_rotationGroup->setButton(3);
break;
default:
// Shouldn't hit this one
Q_ASSERT(currentScreen()->proposedRotation() & RandRScreen::RotateMask);
break;
}
m_rotationGroup->find(4)->setDown(currentScreen()->proposedRotation() & RandRScreen::ReflectX);
m_rotationGroup->find(5)->setDown(currentScreen()->proposedRotation() & RandRScreen::ReflectY);
m_rotationGroup->blockSignals(false);
m_refreshRates->blockSignals(true);
m_refreshRates->setCurrentItem(currentScreen()->proposedRefreshRate());
m_refreshRates->blockSignals(false);
}