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Diffstat (limited to 'krandr/randr.cpp')
| -rw-r--r-- | krandr/randr.cpp | 703 |
1 files changed, 703 insertions, 0 deletions
diff --git a/krandr/randr.cpp b/krandr/randr.cpp new file mode 100644 index 000000000..63c5c0450 --- /dev/null +++ b/krandr/randr.cpp @@ -0,0 +1,703 @@ +/* + * 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 "randr.h" + +#include <qtimer.h> + +#include <kdebug.h> +#include <klocale.h> +#include <kglobal.h> +#include <kapplication.h> +#include <kiconloader.h> +#include <dcopclient.h> +#include <kipc.h> +#include <kactivelabel.h> + +#include "ktimerdialog.h" + +#include <X11/Xlib.h> +#define INT8 _X11INT8 +#define INT32 _X11INT32 +#include <X11/Xproto.h> +#undef INT8 +#undef INT32 +#include <X11/extensions/Xrandr.h> + +class RandRScreenPrivate +{ +public: + RandRScreenPrivate() : config(0L) {}; + ~RandRScreenPrivate() + { + if (config) + XRRFreeScreenConfigInfo(config); + } + + XRRScreenConfiguration* config; +}; + +RandRScreen::RandRScreen(int screenIndex) + : d(new RandRScreenPrivate()) + , m_screen(screenIndex) + , m_shownDialog(NULL) +{ + loadSettings(); + setOriginal(); +} + +RandRScreen::~RandRScreen() +{ + delete d; +} + +void RandRScreen::loadSettings() +{ + if (d->config) + XRRFreeScreenConfigInfo(d->config); + + d->config = XRRGetScreenInfo(qt_xdisplay(), RootWindow(qt_xdisplay(), m_screen)); + Q_ASSERT(d->config); + + Rotation rotation; + m_currentSize = m_proposedSize = XRRConfigCurrentConfiguration(d->config, &rotation); + m_currentRotation = m_proposedRotation = rotation; + + m_pixelSizes.clear(); + m_mmSizes.clear(); + int numSizes; + XRRScreenSize* sizes = XRRSizes(qt_xdisplay(), m_screen, &numSizes); + for (int i = 0; i < numSizes; i++) { + m_pixelSizes.append(QSize(sizes[i].width, sizes[i].height)); + m_mmSizes.append(QSize(sizes[i].mwidth, sizes[i].mheight)); + } + + m_rotations = XRRRotations(qt_xdisplay(), m_screen, &rotation); + + m_currentRefreshRate = m_proposedRefreshRate = refreshRateHzToIndex(m_currentSize, XRRConfigCurrentRate(d->config)); +} + +void RandRScreen::setOriginal() +{ + m_originalSize = m_currentSize; + m_originalRotation = m_currentRotation; + m_originalRefreshRate = m_currentRefreshRate; +} + +bool RandRScreen::applyProposed() +{ + //kdDebug() << k_funcinfo << " size " << (SizeID)proposedSize() << ", rotation " << proposedRotation() << ", refresh " << refreshRateIndexToHz(proposedSize(), proposedRefreshRate()) << endl; + + Status status; + + if (proposedRefreshRate() < 0) + status = XRRSetScreenConfig(qt_xdisplay(), d->config, DefaultRootWindow(qt_xdisplay()), (SizeID)proposedSize(), (Rotation)proposedRotation(), CurrentTime); + else { + if( refreshRateIndexToHz(proposedSize(), proposedRefreshRate()) <= 0 ) { + m_proposedRefreshRate = 0; + } + status = XRRSetScreenConfigAndRate(qt_xdisplay(), d->config, DefaultRootWindow(qt_xdisplay()), (SizeID)proposedSize(), (Rotation)proposedRotation(), refreshRateIndexToHz(proposedSize(), proposedRefreshRate()), CurrentTime); + } + + //kdDebug() << "New size: " << WidthOfScreen(ScreenOfDisplay(QPaintDevice::x11AppDisplay(), screen)) << ", " << HeightOfScreen(ScreenOfDisplay(QPaintDevice::x11AppDisplay(), screen)) << endl; + + if (status == RRSetConfigSuccess) { + m_currentSize = m_proposedSize; + m_currentRotation = m_proposedRotation; + m_currentRefreshRate = m_proposedRefreshRate; + return true; + } + + return false; +} + +bool RandRScreen::applyProposedAndConfirm() +{ + if (proposedChanged()) { + setOriginal(); + + if (applyProposed()) { + if (!confirm()) { + proposeOriginal(); + applyProposed(); + return false; + } + } else { + return false; + } + } + + return true; +} + +bool RandRScreen::confirm() +{ + // uncomment the line below and edit out the KTimerDialog stuff to get + // a version which works on today's kdelibs (no accept dialog is presented) + + // FIXME remember to put the dialog on the right screen + + KTimerDialog acceptDialog ( 15000, KTimerDialog::CountDown, + KApplication::kApplication()->mainWidget(), + "mainKTimerDialog", + true, + i18n("Confirm Display Setting Change"), + KTimerDialog::Ok|KTimerDialog::Cancel, + KTimerDialog::Cancel); + + acceptDialog.setButtonOK(KGuiItem(i18n("&Accept Configuration"), "button_ok")); + acceptDialog.setButtonCancel(KGuiItem(i18n("&Return to Previous Configuration"), "button_cancel")); + + KActiveLabel *label = new KActiveLabel(i18n("Your screen orientation, size and refresh rate " + "have been changed to the requested settings. Please indicate whether you wish to " + "keep this configuration. In 15 seconds the display will revert to your previous " + "settings."), &acceptDialog, "userSpecifiedLabel"); + + acceptDialog.setMainWidget(label); + + KDialog::centerOnScreen(&acceptDialog, m_screen); + + m_shownDialog = &acceptDialog; + connect( m_shownDialog, SIGNAL( destroyed()), this, SLOT( shownDialogDestroyed())); + connect( kapp->desktop(), SIGNAL( resized(int)), this, SLOT( desktopResized())); + + return acceptDialog.exec(); +} + +void RandRScreen::shownDialogDestroyed() +{ + m_shownDialog = NULL; + disconnect( kapp->desktop(), SIGNAL( resized(int)), this, SLOT( desktopResized())); +} + +void RandRScreen::desktopResized() +{ + if( m_shownDialog != NULL ) + KDialog::centerOnScreen(m_shownDialog, m_screen); +} + +QString RandRScreen::changedMessage() const +{ + if (currentRefreshRate() == -1) + return i18n("New configuration:\nResolution: %1 x %2\nOrientation: %3") + .arg(currentPixelWidth()) + .arg(currentPixelHeight()) + .arg(currentRotationDescription()); + else + return i18n("New configuration:\nResolution: %1 x %2\nOrientation: %3\nRefresh rate: %4") + .arg(currentPixelWidth()) + .arg(currentPixelHeight()) + .arg(currentRotationDescription()) + .arg(currentRefreshRateDescription()); +} + +bool RandRScreen::changedFromOriginal() const +{ + return m_currentSize != m_originalSize || m_currentRotation != m_originalRotation || m_currentRefreshRate != m_originalRefreshRate; +} + +void RandRScreen::proposeOriginal() +{ + m_proposedSize = m_originalSize; + m_proposedRotation = m_originalRotation; + m_proposedRefreshRate = m_originalRefreshRate; +} + +bool RandRScreen::proposedChanged() const +{ + return m_currentSize != m_proposedSize || m_currentRotation != m_proposedRotation || m_currentRefreshRate != m_proposedRefreshRate; +} + +QString RandRScreen::rotationName(int rotation, bool pastTense, bool capitalised) +{ + if (!pastTense) + switch (rotation) { + case RR_Rotate_0: + return i18n("Normal"); + case RR_Rotate_90: + return i18n("Left (90 degrees)"); + case RR_Rotate_180: + return i18n("Upside-down (180 degrees)"); + case RR_Rotate_270: + return i18n("Right (270 degrees)"); + case RR_Reflect_X: + return i18n("Mirror horizontally"); + case RR_Reflect_Y: + return i18n("Mirror vertically"); + default: + return i18n("Unknown orientation"); + } + + switch (rotation) { + case RR_Rotate_0: + return i18n("Normal"); + case RR_Rotate_90: + return i18n("Rotated 90 degrees counterclockwise"); + case RR_Rotate_180: + return i18n("Rotated 180 degrees counterclockwise"); + case RR_Rotate_270: + return i18n("Rotated 270 degrees counterclockwise"); + default: + if (rotation & RR_Reflect_X) + if (rotation & RR_Reflect_Y) + if (capitalised) + return i18n("Mirrored horizontally and vertically"); + else + return i18n("mirrored horizontally and vertically"); + else + if (capitalised) + return i18n("Mirrored horizontally"); + else + return i18n("mirrored horizontally"); + else if (rotation & RR_Reflect_Y) + if (capitalised) + return i18n("Mirrored vertically"); + else + return i18n("mirrored vertically"); + else + if (capitalised) + return i18n("Unknown orientation"); + else + return i18n("unknown orientation"); + } +} + +QPixmap RandRScreen::rotationIcon(int rotation) const +{ + // Adjust icons for current screen orientation + if (!(m_currentRotation & RR_Rotate_0) && rotation & (RR_Rotate_0 | RR_Rotate_90 | RR_Rotate_180 | RR_Rotate_270)) { + int currentAngle = m_currentRotation & (RR_Rotate_90 | RR_Rotate_180 | RR_Rotate_270); + switch (currentAngle) { + case RR_Rotate_90: + rotation <<= 3; + break; + case RR_Rotate_180: + rotation <<= 2; + break; + case RR_Rotate_270: + rotation <<= 1; + break; + } + + // Fix overflow + if (rotation > RR_Rotate_270) { + rotation >>= 4; + } + } + + switch (rotation) { + case RR_Rotate_0: + return SmallIcon("up"); + case RR_Rotate_90: + return SmallIcon("back"); + case RR_Rotate_180: + return SmallIcon("down"); + case RR_Rotate_270: + return SmallIcon("forward"); + case RR_Reflect_X: + case RR_Reflect_Y: + default: + return SmallIcon("stop"); + } +} + +QString RandRScreen::currentRotationDescription() const +{ + QString ret = rotationName(m_currentRotation & RotateMask); + + if (m_currentRotation != m_currentRotation & RotateMask) + if (m_currentRotation & RR_Rotate_0) + ret = rotationName(m_currentRotation & (RR_Reflect_X + RR_Reflect_X), true, true); + else + ret += ", " + rotationName(m_currentRotation & (RR_Reflect_X + RR_Reflect_X), true, false); + + return ret; +} + +int RandRScreen::rotationIndexToDegree(int rotation) const +{ + switch (rotation & RotateMask) { + case RR_Rotate_90: + return 90; + + case RR_Rotate_180: + return 180; + + case RR_Rotate_270: + return 270; + + default: + return 0; + } +} + +int RandRScreen::rotationDegreeToIndex(int degree) const +{ + switch (degree) { + case 90: + return RR_Rotate_90; + + case 180: + return RR_Rotate_180; + + case 270: + return RR_Rotate_270; + + default: + return RR_Rotate_0; + } +} + +int RandRScreen::currentPixelWidth() const +{ + return m_pixelSizes[m_currentSize].width(); +} + +int RandRScreen::currentPixelHeight() const +{ + return m_pixelSizes[m_currentSize].height(); +} + +int RandRScreen::currentMMWidth() const +{ + return m_pixelSizes[m_currentSize].width(); +} + +int RandRScreen::currentMMHeight() const +{ + return m_pixelSizes[m_currentSize].height(); +} + +QStringList RandRScreen::refreshRates(int size) const +{ + int nrates; + short* rates = XRRRates(qt_xdisplay(), m_screen, (SizeID)size, &nrates); + + QStringList ret; + for (int i = 0; i < nrates; i++) + ret << refreshRateDirectDescription(rates[i]); + + return ret; +} + +QString RandRScreen::refreshRateDirectDescription(int rate) const +{ + return i18n("Refresh rate in Hertz (Hz)", "%1 Hz").arg(rate); +} + +QString RandRScreen::refreshRateIndirectDescription(int size, int index) const +{ + return i18n("Refresh rate in Hertz (Hz)", "%1 Hz").arg(refreshRateIndexToHz(size, index)); +} + +QString RandRScreen::refreshRateDescription(int size, int index) const +{ + return refreshRates(size)[index]; +} + +bool RandRScreen::proposeRefreshRate(int index) +{ + if (index >= 0 && (int)refreshRates(proposedSize()).count() > index) { + m_proposedRefreshRate = index; + return true; + } + + return false; +} + +int RandRScreen::currentRefreshRate() const +{ + return m_currentRefreshRate; +} + +QString RandRScreen::currentRefreshRateDescription() const +{ + return refreshRateIndirectDescription(m_currentSize, m_currentRefreshRate); +} + +int RandRScreen::proposedRefreshRate() const +{ + return m_proposedRefreshRate; +} + +int RandRScreen::refreshRateHzToIndex(int size, int hz) const +{ + int nrates; + short* rates = XRRRates(qt_xdisplay(), m_screen, (SizeID)size, &nrates); + + for (int i = 0; i < nrates; i++) + if (hz == rates[i]) + return i; + + if (nrates != 0) + // Wrong input Hz! + Q_ASSERT(false); + + return -1; +} + +int RandRScreen::refreshRateIndexToHz(int size, int index) const +{ + int nrates; + short* rates = XRRRates(qt_xdisplay(), m_screen, (SizeID)size, &nrates); + + if (nrates == 0 || index < 0) + return 0; + + // Wrong input Hz! + if(index >= nrates) + return 0; + + return rates[index]; +} + +int RandRScreen::numSizes() const +{ + return m_pixelSizes.count(); +} + +const QSize& RandRScreen::pixelSize(int index) const +{ + return m_pixelSizes[index]; +} + +const QSize& RandRScreen::mmSize(int index) const +{ + return m_mmSizes[index]; +} + +int RandRScreen::sizeIndex(QSize pixelSize) const +{ + for (uint i = 0; i < m_pixelSizes.count(); i++) + if (m_pixelSizes[i] == pixelSize) + return i; + + return -1; +} + +int RandRScreen::rotations() const +{ + return m_rotations; +} + +int RandRScreen::currentRotation() const +{ + return m_currentRotation; +} + +int RandRScreen::currentSize() const +{ + return m_currentSize; +} + +int RandRScreen::proposedRotation() const +{ + return m_proposedRotation; +} + +void RandRScreen::proposeRotation(int newRotation) +{ + m_proposedRotation = newRotation & OrientationMask; +} + +int RandRScreen::proposedSize() const +{ + return m_proposedSize; +} + +bool RandRScreen::proposeSize(int newSize) +{ + if ((int)m_pixelSizes.count() > newSize) { + m_proposedSize = newSize; + return true; + } + + return false; +} + +void RandRScreen::load(KConfig& config) +{ + config.setGroup(QString("Screen%1").arg(m_screen)); + + if (proposeSize(sizeIndex(QSize(config.readNumEntry("width", currentPixelWidth()), config.readNumEntry("height", currentPixelHeight()))))) + proposeRefreshRate(refreshRateHzToIndex(proposedSize(), config.readNumEntry("refresh", currentRefreshRate()))); + + proposeRotation(rotationDegreeToIndex(config.readNumEntry("rotation", 0)) + (config.readBoolEntry("reflectX") ? ReflectX : 0) + (config.readBoolEntry("reflectY") ? ReflectY : 0)); +} + +void RandRScreen::save(KConfig& config) const +{ + config.setGroup(QString("Screen%1").arg(m_screen)); + config.writeEntry("width", currentPixelWidth()); + config.writeEntry("height", currentPixelHeight()); + config.writeEntry("refresh", refreshRateIndexToHz(currentSize(), currentRefreshRate())); + config.writeEntry("rotation", rotationIndexToDegree(currentRotation())); + config.writeEntry("reflectX", (bool)(currentRotation() & ReflectMask) == ReflectX); + config.writeEntry("reflectY", (bool)(currentRotation() & ReflectMask) == ReflectY); +} + +RandRDisplay::RandRDisplay() + : m_valid(true) +{ + // Check extension + Status s = XRRQueryExtension(qt_xdisplay(), &m_eventBase, &m_errorBase); + if (!s) { + m_errorCode = QString("%1, base %1").arg(s).arg(m_errorBase); + m_valid = false; + return; + } + + int major_version, minor_version; + XRRQueryVersion(qt_xdisplay(), &major_version, &minor_version); + + m_version = QString("X Resize and Rotate extension version %1.%1").arg(major_version).arg(minor_version); + + m_numScreens = ScreenCount(qt_xdisplay()); + + // This assumption is WRONG with Xinerama + // Q_ASSERT(QApplication::desktop()->numScreens() == ScreenCount(qt_xdisplay())); + + m_screens.setAutoDelete(true); + for (int i = 0; i < m_numScreens; i++) { + m_screens.append(new RandRScreen(i)); + } + + setCurrentScreen(QApplication::desktop()->primaryScreen()); +} + +bool RandRDisplay::isValid() const +{ + return m_valid; +} + +const QString& RandRDisplay::errorCode() const +{ + return m_errorCode; +} + +int RandRDisplay::eventBase() const +{ + return m_eventBase; +} + +int RandRDisplay::screenChangeNotifyEvent() const +{ + return m_eventBase + RRScreenChangeNotify; +} + +int RandRDisplay::errorBase() const +{ + return m_errorBase; +} + +const QString& RandRDisplay::version() const +{ + return m_version; +} + +void RandRDisplay::setCurrentScreen(int index) +{ + m_currentScreenIndex = index; + m_currentScreen = m_screens.at(m_currentScreenIndex); + Q_ASSERT(m_currentScreen); +} + +int RandRDisplay::screenIndexOfWidget(QWidget* widget) +{ + int ret = QApplication::desktop()->screenNumber(widget); + return ret != -1 ? ret : QApplication::desktop()->primaryScreen(); +} + +int RandRDisplay::currentScreenIndex() const +{ + return m_currentScreenIndex; +} + +void RandRDisplay::refresh() +{ + for (RandRScreen* s = m_screens.first(); s; s = m_screens.next()) + s->loadSettings(); +} + +int RandRDisplay::numScreens() const +{ + return m_numScreens; +} + +RandRScreen* RandRDisplay::screen(int index) +{ + return m_screens.at(index); +} + +RandRScreen* RandRDisplay::currentScreen() +{ + return m_currentScreen; +} + +bool RandRDisplay::loadDisplay(KConfig& config, bool loadScreens) +{ + if (loadScreens) + for (RandRScreen* s = m_screens.first(); s; s = m_screens.next()) + s->load(config); + + return applyOnStartup(config); +} + +bool RandRDisplay::applyOnStartup(KConfig& config) +{ + config.setGroup("Display"); + return config.readBoolEntry("ApplyOnStartup", false); +} + +bool RandRDisplay::syncTrayApp(KConfig& config) +{ + config.setGroup("Display"); + return config.readBoolEntry("SyncTrayApp", false); +} + +void RandRDisplay::saveDisplay(KConfig& config, bool applyOnStartup, bool syncTrayApp) +{ + Q_ASSERT(!config.isReadOnly()); + + config.setGroup("Display"); + config.writeEntry("ApplyOnStartup", applyOnStartup); + config.writeEntry("SyncTrayApp", syncTrayApp); + + for (RandRScreen* s = m_screens.first(); s; s = m_screens.next()) + s->save(config); +} + +void RandRDisplay::applyProposed(bool confirm) +{ + for (int screenIndex = 0; screenIndex < numScreens(); screenIndex++) { + if (screen(screenIndex)->proposedChanged()) { + if (confirm) + screen(screenIndex)->applyProposedAndConfirm(); + else + screen(screenIndex)->applyProposed(); + } + } +} + +int RandRScreen::pixelCount( int index ) const +{ + QSize sz = pixelSize(index); + return sz.width() * sz.height(); +} + +#include "randr.moc" |