/******************************************************************************** Copyright (C) 2010 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 "qscreenmulti_qws_p.h"#ifndef QT_NO_QWS_MULTISCREEN#include <qlist.h>#include <qstringlist.h>#include <qwidget.h>#include <qdebug.h>QT_BEGIN_NAMESPACE#ifndef QT_NO_QWS_CURSORclass QMultiScreenCursor : public QScreenCursor{public: QMultiScreenCursor() : currentCursor(qt_screencursor) { enable = false; } ~QMultiScreenCursor() { qt_screencursor = 0; } void set(const QImage &image, int hotx, int hoty); void move(int x, int y); void show(); void hide(); void addCursor(QScreenCursor *cursor);private: void setCurrentCursor(QScreenCursor *newCursor); QScreenCursor *currentCursor; QList<QScreenCursor*> cursors;};void QMultiScreenCursor::set(const QImage &image, int hotx, int hoty){ QScreenCursor::set(image, hotx, hoty); if (currentCursor) currentCursor->set(image, hotx, hoty);}void QMultiScreenCursor::setCurrentCursor(QScreenCursor *newCursor){ *((QScreenCursor*)this) = *newCursor; currentCursor = newCursor;}// XXX: this is a mess!void QMultiScreenCursor::move(int x, int y){ const int oldIndex = qt_screen->subScreenIndexAt(pos); QScreenCursor::move(x, y); // updates pos const int newIndex = qt_screen->subScreenIndexAt(pos); if (!currentCursor && oldIndex != -1) setCurrentCursor(cursors.at(oldIndex)); QScreenCursor *oldCursor = currentCursor; if (oldIndex != -1) { const QScreen *oldScreen = qt_screen->subScreens().at(oldIndex); if (newIndex == -1 || oldScreen->region().contains(pos)) { oldCursor->move(x, y); return; } } if (newIndex != -1) { QScreenCursor *newCursor = cursors.at(newIndex); newCursor->set(cursor, hotspot.x(), hotspot.y()); if (oldCursor) { if (oldCursor->isVisible()) newCursor->show(); oldCursor->hide(); } newCursor->move(x, y); setCurrentCursor(newCursor); }}void QMultiScreenCursor::show(){ if (currentCursor) currentCursor->show();}void QMultiScreenCursor::hide(){ if (currentCursor) currentCursor->hide();}void QMultiScreenCursor::addCursor(QScreenCursor *cursor){ cursors.append(cursor);}#endifclass QMultiScreenPrivate{public: QMultiScreenPrivate()#ifndef QT_NO_QWS_CURSOR : cursor(0)#endif {} ~QMultiScreenPrivate() {#ifndef QT_NO_QWS_CURSOR delete cursor;#endif } QList<QScreen*> screens; QRegion region;#ifndef QT_NO_QWS_CURSOR QMultiScreenCursor *cursor;#endif};QMultiScreen::QMultiScreen(int displayId) : QScreen(displayId, MultiClass), d_ptr(new QMultiScreenPrivate){}QMultiScreen::~QMultiScreen(){ delete d_ptr;}bool QMultiScreen::initDevice(){ bool ok = true;#ifndef QT_NO_QWS_CURSOR d_ptr->cursor = new QMultiScreenCursor;#endif const int n = d_ptr->screens.count(); for (int i = 0; i < n; ++i) { QScreen *s = d_ptr->screens.at(i); ok = s->initDevice() && ok;#ifndef QT_NO_QWS_CURSOR d_ptr->cursor->addCursor(qt_screencursor); // XXX#endif }#ifndef QT_NO_QWS_CURSOR // XXX qt_screencursor = d_ptr->cursor;#endif return ok;}static int getDisplayId(const QString &spec){ QRegExp regexp(QLatin1String(":(\\d+)\\b")); if (regexp.lastIndexIn(spec) != -1) { const QString capture = regexp.cap(1); return capture.toInt(); } return 0;}static QPoint filterDisplayOffset(QString &spec){ QRegExp regexp(QLatin1String(":offset=(\\d+),(\\d+)\\b")); if (regexp.indexIn(spec) == -1) return QPoint(); const int x = regexp.cap(1).toInt(); const int y = regexp.cap(2).toInt(); spec.remove(regexp.pos(0), regexp.matchedLength()); return QPoint(x, y);}bool QMultiScreen::connect(const QString &displaySpec){ QString dSpec = displaySpec; if (dSpec.startsWith(QLatin1String("Multi:"), Qt::CaseInsensitive)) dSpec = dSpec.mid(QString::fromLatin1("Multi:").size()); const QString displayIdSpec = QString::fromLatin1(" :%1").arg(displayId); if (dSpec.endsWith(displayIdSpec)) dSpec = dSpec.left(dSpec.size() - displayIdSpec.size()); QStringList specs = dSpec.split(QLatin1Char(' '), QString::SkipEmptyParts); foreach (QString spec, specs) { const int id = getDisplayId(spec); if (spec.startsWith("vnc:", Qt::CaseInsensitive)) { spec.append(":noDisablePainting"); } const QPoint offset = filterDisplayOffset(spec); QScreen *s = qt_get_screen(id, spec.toLatin1().constData()); s->setOffset(offset); addSubScreen(s); } QScreen *firstScreen = d_ptr->screens.at(0); Q_ASSERT(firstScreen); // XXX QScreen::d = firstScreen->depth(); QScreen::lstep = 0; QScreen::data = 0; QScreen::size = 0; QScreen::w = d_ptr->region.boundingRect().width(); QScreen::h = d_ptr->region.boundingRect().height(); QScreen::dw = QScreen::w; QScreen::dh = QScreen::h; // XXX - Extend the physical size based on the first screen // to encompass all screens, so that code that uses the multi // screen to calculate dpi values will get the right numbers. QScreen::physWidth = firstScreen->physicalWidth() * w / firstScreen->width(); QScreen::physHeight = firstScreen->physicalHeight() * h / firstScreen->height(); // XXXXX qt_screen = this; return true;}void QMultiScreen::disconnect(){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->disconnect();}void QMultiScreen::shutdownDevice(){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->shutdownDevice();}void QMultiScreen::setMode(int, int, int){ return;}bool QMultiScreen::supportsDepth(int) const{ return false;}void QMultiScreen::save(){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->save();}void QMultiScreen::restore(){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->restore();}void QMultiScreen::blank(bool on){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->blank(on);}bool QMultiScreen::onCard(const unsigned char *ptr) const{ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) if (d_ptr->screens.at(i)->onCard(ptr)) return true; return false;}bool QMultiScreen::onCard(const unsigned char *ptr, ulong &offset) const{ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) if (d_ptr->screens.at(i)->onCard(ptr, offset)) return true; return false;}bool QMultiScreen::isInterlaced() const{ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) if (d_ptr->screens.at(i)->isInterlaced()) return true; return false;}int QMultiScreen::memoryNeeded(const QString &string){ int total = 0; const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) total += d_ptr->screens.at(i)->memoryNeeded(string); return total;}int QMultiScreen::sharedRamSize(void *arg){ int total = 0; const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) total += d_ptr->screens.at(i)->sharedRamSize(arg); return total;}void QMultiScreen::haltUpdates(){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->haltUpdates();}void QMultiScreen::resumeUpdates(){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) d_ptr->screens.at(i)->resumeUpdates();}void QMultiScreen::exposeRegion(QRegion region, int changing){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) { QScreen *screen = d_ptr->screens.at(i); const QRegion r = region & screen->region(); if (r.isEmpty()) continue; screen->exposeRegion(r, changing); }}void QMultiScreen::solidFill(const QColor &color, const QRegion ®ion){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) { QScreen *screen = d_ptr->screens.at(i); const QRegion r = region & screen->region(); if (r.isEmpty()) continue; screen->solidFill(color, r); }}void QMultiScreen::blit(const QImage &img, const QPoint &topLeft, const QRegion ®ion){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) { QScreen *screen = d_ptr->screens.at(i); const QRegion r = region & screen->region(); if (r.isEmpty()) continue; screen->blit(img, topLeft, r); }}void QMultiScreen::blit(QWSWindow *bs, const QRegion &clip){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) { QScreen *screen = d_ptr->screens.at(i); const QRegion r = clip & screen->region(); if (r.isEmpty()) continue; screen->blit(bs, r); }}void QMultiScreen::setDirty(const QRect &rect){ const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) { QScreen *screen = d_ptr->screens.at(i); const QRegion r = screen->region() & rect; if (r.isEmpty()) continue; screen->setDirty(r.boundingRect()); }}QWSWindowSurface* QMultiScreen::createSurface(const QString &key) const{ QWSWindowSurface* surf = 0; const int n = d_ptr->screens.size(); for (int i = 0; i < n; ++i) { QScreen *screen = d_ptr->screens.at(i); surf = screen->createSurface(key); if (surf) break; } return surf;}QWSWindowSurface* QMultiScreen::createSurface(QWidget *widget) const{ const QPoint midpoint = (widget->frameGeometry().topLeft() + widget->frameGeometry().bottomRight()) / 2; int index = subScreenIndexAt(midpoint); if (index == -1) index = 0; // XXX return d_ptr->screens.at(index)->createSurface(widget);}QList<QScreen*> QMultiScreen::subScreens() const{ return d_ptr->screens;}QRegion QMultiScreen::region() const{ return d_ptr->region;}void QMultiScreen::addSubScreen(QScreen *screen){ d_ptr->screens.append(screen); d_ptr->region += screen->region();}void QMultiScreen::removeSubScreen(QScreen *screen){ d_ptr->screens.removeAll(screen); d_ptr->region -= screen->region();}QT_END_NAMESPACE#endif // QT_NO_QWS_MULTISCREEN