src/gui/kernel/qx11info_x11.cpp

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/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
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**
** If you are unsure which license is appropriate for your use, please
** review the following information:
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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****************************************************************************/

#include "qwidget.h"
#include "qpixmap.h"
#include "qx11info_x11.h"
#include "qt_x11_p.h"

QX11Info::QX11Info()
    : x11data(0)
{
}

QX11Info::QX11Info(const QX11Info &other)
{
    x11data = other.x11data;
    if (x11data)
        ++x11data->ref;
}

QX11Info &QX11Info::operator=(const QX11Info &other)
{
    QX11InfoData *x = other.x11data;
    if (x)
        ++x->ref;
    x = qAtomicSetPtr(&x11data, x);
    if (x && !--x->ref)
        delete x;
    return *this;
}

QX11Info::~QX11Info()
{
    if (x11data && !--x11data->ref)
        delete x11data;
}

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);
}

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);
}

void QX11Info::setX11Data(const QX11InfoData* d)
{
    if (x11data && !--x11data->ref)
        delete x11data;
    x11data = (QX11InfoData *)d;
    if (x11data)
        ++x11data->ref;
}


QX11InfoData* QX11Info::getX11Data(bool def) const
{
    QX11InfoData* res = 0;
    if (def) {
        res = new QX11InfoData;
        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;
}

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;
}

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;
}

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;
}

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;
}

unsigned long QX11Info::appTime()
{
    return X11 ? X11->time : 0;
}

void QX11Info::setAppTime(unsigned long time)
{
    if (X11) {
        X11->time = time;
    }
}

unsigned long QX11Info::appUserTime()
{
    return X11 ? X11->userTime : 0;
}

void QX11Info::setAppUserTime(unsigned long time)
{
    if (X11) {
        X11->userTime = time;
    }
}


Display *QX11Info::display()
{
    return X11 ? X11->display : 0;
}

int QX11Info::appScreen()
{
    return X11 ? X11->defaultScreen : 0;
}

Qt::HANDLE QX11Info::appColormap(int screen)
{
    return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].colormap : 0;
}

void *QX11Info::appVisual(int screen)
{
    return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].visual : 0;
}

Qt::HANDLE QX11Info::appRootWindow(int screen)
{
    return X11 ? RootWindow(X11->display, screen == -1 ? X11->defaultScreen : screen) : 0;
}

int QX11Info::appDepth(int screen)
{
    return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].depth : 32;
}

int QX11Info::appCells(int screen)
{ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].cells : 0; }

bool QX11Info::appDefaultColormap(int screen)
{ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].defaultColormap : true; }

bool QX11Info::appDefaultVisual(int screen)
{ return X11 ? X11->screens[screen == -1 ? X11->defaultScreen : screen].defaultVisual : true; }

int QX11Info::screen() const
{ return x11data ? x11data->screen : QX11Info::appScreen(); }

int QX11Info::depth() const
{ return x11data ? x11data->depth : QX11Info::appDepth(); }

int QX11Info::cells() const
{ return x11data ? x11data->cells : QX11Info::appCells(); }

Qt::HANDLE QX11Info::colormap() const
{ return x11data ? x11data->colormap : QX11Info::appColormap(); }

bool QX11Info::defaultColormap() const
{ return x11data ? x11data->defaultColormap : QX11Info::appDefaultColormap(); }

void *QX11Info::visual() const
{ return x11data ? x11data->visual : QX11Info::appVisual(); }

bool QX11Info::defaultVisual() const
{ return x11data ? x11data->defaultVisual : QX11Info::appDefaultVisual(); }

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