--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/kernel/qx11info_x11.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,543 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwidget.h"
+#include "qpixmap.h"
+#include "qx11info_x11.h"
+#include "qt_x11_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+ \class QX11Info
+ \brief The QX11Info class provides information about the X display
+ configuration.
+
+ \ingroup shared
+
+ The class provides two APIs: a set of non-static functions that
+ provide information about a specific widget or pixmap, and a set
+ of static functions that provide the default information for the
+ application.
+
+ \warning This class is only available on X11. For querying
+ per-screen information in a portable way, use QDesktopWidget.
+
+ \sa QWidget::x11Info(), QPixmap::x11Info(), QDesktopWidget
+*/
+
+/*!
+ Constructs an empty QX11Info object.
+*/
+QX11Info::QX11Info()
+ : x11data(0)
+{
+}
+
+/*!
+ Constructs a copy of \a other.
+*/
+QX11Info::QX11Info(const QX11Info &other)
+{
+ x11data = other.x11data;
+ if (x11data)
+ ++x11data->ref;
+}
+
+/*!
+ Assigns \a other to this object and returns a reference to this
+ object.
+*/
+QX11Info &QX11Info::operator=(const QX11Info &other)
+{
+ if (other.x11data)
+ ++other.x11data->ref;
+ if (x11data && !--x11data->ref)
+ delete x11data;
+ x11data = other.x11data;
+ return *this;
+}
+
+/*!
+ Destroys the QX11Info object.
+*/
+QX11Info::~QX11Info()
+{
+ if (x11data && !--x11data->ref)
+ delete x11data;
+}
+
+/*!
+ \internal
+ Makes a shallow copy of the X11-specific data of \a fromDevice, if it is not
+ null. Otherwise this function sets it to null.
+*/
+
+void QX11Info::copyX11Data(const QPaintDevice *fromDevice)
+{
+ QX11InfoData *xd = 0;
+ if (fromDevice) {
+ if (fromDevice->devType() == QInternal::Widget)
+ xd = static_cast<const QWidget *>(fromDevice)->x11Info().x11data;
+ else if (fromDevice->devType() == QInternal::Pixmap)
+ xd = static_cast<const QPixmap *>(fromDevice)->x11Info().x11data;
+ }
+ setX11Data(xd);
+}
+
+/*!
+ \internal
+ Makes a deep copy of the X11-specific data of \a fromDevice, if it is not
+ null. Otherwise this function sets it to null.
+*/
+
+void QX11Info::cloneX11Data(const QPaintDevice *fromDevice)
+{
+ QX11InfoData *d = 0;
+ if (fromDevice) {
+ QX11InfoData *xd;
+ if (fromDevice->devType() == QInternal::Widget) {
+ xd = static_cast<const QWidget *>(fromDevice)->x11Info().x11data;
+ } else {
+ Q_ASSERT(fromDevice->devType() == QInternal::Pixmap);
+ xd = static_cast<const QPixmap *>(fromDevice)->x11Info().x11data;
+ }
+ d = new QX11InfoData(*xd);
+ d->ref = 0;
+ }
+ setX11Data(d);
+}
+
+/*!
+ \internal
+ Makes a shallow copy of the X11-specific data \a d and assigns it to this
+ class. This function increments the reference code of \a d.
+*/
+
+void QX11Info::setX11Data(const QX11InfoData* d)
+{
+ if (x11data && !--x11data->ref)
+ delete x11data;
+ x11data = (QX11InfoData *)d;
+ if (x11data)
+ ++x11data->ref;
+}
+
+
+/*!
+ \internal
+ If \a def is false, returns a deep copy of the x11Data, or 0 if x11Data is 0.
+ If \a def is true, makes a QX11Data struct filled with the default
+ values.
+
+ In either case the caller is responsible for deleting the returned
+ struct. But notice that the struct is a shared class, so other
+ classes might also have a reference to it. The reference count of
+ the returned QX11Data* is 0.
+*/
+
+QX11InfoData* QX11Info::getX11Data(bool def) const
+{
+ QX11InfoData* res = 0;
+ if (def) {
+ res = new QX11InfoData;
+ res->ref = 0;
+ res->screen = appScreen();
+ res->depth = appDepth();
+ res->cells = appCells();
+ res->colormap = colormap();
+ res->defaultColormap = appDefaultColormap();
+ res->visual = (Visual*) appVisual();
+ res->defaultVisual = appDefaultVisual();
+ } else if (x11data) {
+ res = new QX11InfoData;
+ *res = *x11data;
+ res->ref = 0;
+ }
+ return res;
+}
+
+/*!
+ Returns the horizontal resolution of the given \a screen in terms of the
+ number of dots per inch.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa setAppDpiX(), appDpiY()
+*/
+int QX11Info::appDpiX(int screen)
+{
+ if (!X11)
+ return 75;
+ if (screen < 0)
+ screen = X11->defaultScreen;
+ if (screen > X11->screenCount)
+ return 0;
+ return X11->screens[screen].dpiX;
+}
+
+/*!
+ Sets the horizontal resolution of the given \a screen to the number of
+ dots per inch specified by \a xdpi.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa appDpiX(), setAppDpiY()
+*/
+
+void QX11Info::setAppDpiX(int screen, int xdpi)
+{
+ if (!X11)
+ return;
+ if (screen < 0)
+ screen = X11->defaultScreen;
+ if (screen > X11->screenCount)
+ return;
+ X11->screens[screen].dpiX = xdpi;
+}
+
+/*!
+ Returns the vertical resolution of the given \a screen in terms of the
+ number of dots per inch.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa setAppDpiY(), appDpiX()
+*/
+
+int QX11Info::appDpiY(int screen)
+{
+ if (!X11)
+ return 75;
+ if (screen < 0)
+ screen = X11->defaultScreen;
+ if (screen > X11->screenCount)
+ return 0;
+ return X11->screens[screen].dpiY;
+}
+
+/*!
+ Sets the vertical resolution of the given \a screen to the number of
+ dots per inch specified by \a ydpi.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa appDpiY(), setAppDpiX()
+*/
+void QX11Info::setAppDpiY(int screen, int ydpi)
+{
+ if (!X11)
+ return;
+ if (screen < 0)
+ screen = X11->defaultScreen;
+ if (screen > X11->screenCount)
+ return;
+ X11->screens[screen].dpiY = ydpi;
+}
+
+/*!
+ Returns the X11 time.
+
+ \sa setAppTime(), appUserTime()
+*/
+unsigned long QX11Info::appTime()
+{
+ return X11 ? X11->time : 0;
+}
+
+/*!
+ Sets the X11 time to the value specified by \a time.
+
+ \sa appTime(), setAppUserTime()
+*/
+void QX11Info::setAppTime(unsigned long time)
+{
+ if (X11) {
+ X11->time = time;
+ }
+}
+
+/*!
+ Returns the X11 user time.
+
+ \sa setAppUserTime(), appTime()
+*/
+unsigned long QX11Info::appUserTime()
+{
+ return X11 ? X11->userTime : 0;
+}
+
+/*!
+ Sets the X11 user time as specified by \a time.
+
+ \sa appUserTime(), setAppTime()
+*/
+void QX11Info::setAppUserTime(unsigned long time)
+{
+ if (X11) {
+ X11->userTime = time;
+ }
+}
+
+
+/*!
+ \fn const char *QX11Info::appClass()
+
+ Returns the X11 application class.
+
+ \sa display()
+*/
+
+/*!
+ Returns the default display for the application.
+
+ \sa appScreen()
+*/
+
+Display *QX11Info::display()
+{
+ return X11 ? X11->display : 0;
+}
+
+/*!
+ Returns the number of the screen where the application is being
+ displayed.
+
+ \sa display(), screen()
+*/
+int QX11Info::appScreen()
+{
+ return X11 ? X11->defaultScreen : 0;
+}
+
+/*!
+ Returns a handle for the application's color map on the given \a screen.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa colormap(), defaultColormap()
+*/
+Qt::HANDLE QX11Info::appColormap(int screen)
+{
+ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].colormap : 0;
+}
+
+/*!
+ Returns the current visual used by the application on the given
+ \a screen.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa visual(), defaultVisual()
+*/
+
+void *QX11Info::appVisual(int screen)
+{
+ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].visual : 0;
+}
+
+/*!
+ Returns a handle for the applications root window on the given \a screen.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa QApplication::desktop()
+*/
+Qt::HANDLE QX11Info::appRootWindow(int screen)
+{
+ return X11 ? RootWindow(X11->display, screen == -1 ? X11->defaultScreen : screen) : 0;
+}
+
+/*!
+ Returns the color depth (bits per pixel) used by the application on the
+ given \a screen.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa depth()
+*/
+
+int QX11Info::appDepth(int screen)
+{
+ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].depth : 32;
+}
+
+/*!
+ Returns the number of cells used by the application on the given \a screen.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa cells()
+*/
+
+int QX11Info::appCells(int screen)
+{ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].cells : 0; }
+
+/*!
+ Returns true if the application has a default color map on the given
+ \a screen; otherwise returns false.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+*/
+bool QX11Info::appDefaultColormap(int screen)
+{ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].defaultColormap : true; }
+
+/*!
+ Returns true if the application has a default visual on the given \a screen;
+ otherwise returns false.
+
+ The \a screen argument is an X screen number. Be aware that if
+ the user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+*/
+bool QX11Info::appDefaultVisual(int screen)
+{ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].defaultVisual : true; }
+
+/*!
+ Returns the number of the screen currently in use.
+
+ The return value is an X screen number. Be aware that if the
+ user's system uses Xinerama (as opposed to traditional X11
+ multiscreen), there is only one X screen. Use QDesktopWidget to
+ query for information about Xinerama screens.
+
+ \sa appScreen()
+*/
+int QX11Info::screen() const
+{ return x11data ? x11data->screen : QX11Info::appScreen(); }
+
+/*!
+ Returns the color depth (bits per pixel) of the X display.
+
+ \sa appDepth()
+*/
+
+int QX11Info::depth() const
+{ return x11data ? x11data->depth : QX11Info::appDepth(); }
+
+/*!
+ Returns the number of cells.
+
+ \sa appCells()
+*/
+
+int QX11Info::cells() const
+{ return x11data ? x11data->cells : QX11Info::appCells(); }
+
+/*!
+ Returns a handle for the color map.
+
+ \sa defaultColormap()
+*/
+
+Qt::HANDLE QX11Info::colormap() const
+{ return x11data ? x11data->colormap : QX11Info::appColormap(); }
+
+/*!
+ Returns true if there is a default color map; otherwise returns false.
+
+ \sa colormap()
+*/
+
+bool QX11Info::defaultColormap() const
+{ return x11data ? x11data->defaultColormap : QX11Info::appDefaultColormap(); }
+
+/*!
+ Returns the current visual.
+
+ \sa appVisual(), defaultVisual()
+*/
+
+void *QX11Info::visual() const
+{ return x11data ? x11data->visual : QX11Info::appVisual(); }
+
+/*!
+ Returns true if there is a default visual; otherwise returns false.
+
+ \sa visual(), appVisual()
+*/
+
+bool QX11Info::defaultVisual() const
+{ return x11data ? x11data->defaultVisual : QX11Info::appDefaultVisual(); }
+
+
+/*!
+ \since 4.4
+
+ Returns true if there is a compositing manager running.
+*/
+bool QX11Info::isCompositingManagerRunning()
+{
+ return X11 ? X11->compositingManagerRunning : false;
+}
+
+QT_END_NAMESPACE