git.maemo.org Git - presencevnc/blob - src/vncview.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2007-2008 Urs Wolfer <uwolfer @ kde.org>
   4 **
   5 ** This file is part of KDE.
   6 **
   7 ** This program is free software; you can redistribute it and/or modify
   8 ** it under the terms of the GNU General Public License as published by
   9 ** the Free Software Foundation; either version 2 of the License, or
  10 ** (at your option) any later version.
  11 **
  12 ** This program is distributed in the hope that it will be useful,
  13 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 ** GNU General Public License for more details.
  16 **
  17 ** You should have received a copy of the GNU General Public License
  18 ** along with this program; see the file COPYING. If not, write to
  19 ** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 ** Boston, MA 02110-1301, USA.
  21 **
  22 ****************************************************************************/
  23
  24 #include "vncview.h"
  25
  26 #include <QMessageBox>
  27 #include <QInputDialog>
  28 #define KMessageBox QMessageBox
  29 #define error(parent, message, caption) \
  30 critical(parent, caption, message)
  31
  32 #include <QApplication>
  33 #include <QImage>
  34 #include <QPainter>
  35 #include <QMouseEvent>
  36 #include <QEvent>
  37 #include <QSettings>
  38 #include <QTime>
  39 #include <QTimer>
  40
  41 // Definition of key modifier mask constants
  42 #define KMOD_Alt_R      0x01
  43 #define KMOD_Alt_L      0x02
  44 #define KMOD_Meta_L     0x04
  45 #define KMOD_Control_L  0x08
  46 #define KMOD_Shift_L    0x10
  47
  48 VncView::VncView(QWidget *parent, const KUrl &url, RemoteView::Quality quality)
  49         : RemoteView(parent),
  50         m_initDone(false),
  51         m_buttonMask(0),
  52         cursor_x(0),
  53         cursor_y(0),
  54         m_repaint(false),
  55         m_quitFlag(false),
  56         m_firstPasswordTry(true),
  57         m_authenticaionCanceled(false),
  58         m_dontSendClipboard(false),
  59         m_horizontalFactor(1.0),
  60         m_verticalFactor(1.0),
  61         m_forceLocalCursor(false),
  62         force_full_repaint(false),
  63         quality(quality)
  64 {
  65     m_url = url;
  66     m_host = url.host();
  67     m_port = url.port();
  68
  69     connect(&vncThread, SIGNAL(imageUpdated(int, int, int, int)), this, SLOT(updateImage(int, int, int, int)), Qt::BlockingQueuedConnection);
  70     connect(&vncThread, SIGNAL(gotCut(const QString&)), this, SLOT(setCut(const QString&)), Qt::BlockingQueuedConnection);
  71     connect(&vncThread, SIGNAL(passwordRequest()), this, SLOT(requestPassword()), Qt::BlockingQueuedConnection);
  72     connect(&vncThread, SIGNAL(outputErrorMessage(QString)), this, SLOT(outputErrorMessage(QString)));
  73
  74     m_clipboard = QApplication::clipboard();
  75     connect(m_clipboard, SIGNAL(selectionChanged()), this, SLOT(clipboardSelectionChanged()));
  76     connect(m_clipboard, SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
  77
  78     reloadSettings();
  79 }
  80
  81 VncView::~VncView()
  82 {
  83     unpressModifiers();
  84
  85     // Disconnect all signals so that we don't get any more callbacks from the client thread
  86     disconnect(&vncThread, SIGNAL(imageUpdated(int, int, int, int)), this, SLOT(updateImage(int, int, int, int)));
  87     disconnect(&vncThread, SIGNAL(gotCut(const QString&)), this, SLOT(setCut(const QString&)));
  88     disconnect(&vncThread, SIGNAL(passwordRequest()), this, SLOT(requestPassword()));
  89     disconnect(&vncThread, SIGNAL(outputErrorMessage(QString)), this, SLOT(outputErrorMessage(QString)));
  90
  91     startQuitting();
  92 }
  93
  94 void VncView::forceFullRepaint()
  95 {
  96         force_full_repaint = true;
  97         repaint();
  98 }
  99
 100 bool VncView::eventFilter(QObject *obj, QEvent *event)
 101 {
 102     if (m_viewOnly) {
 103         if (event->type() == QEvent::KeyPress ||
 104                 event->type() == QEvent::KeyRelease ||
 105                 event->type() == QEvent::MouseButtonDblClick ||
 106                 event->type() == QEvent::MouseButtonPress ||
 107                 event->type() == QEvent::MouseButtonRelease ||
 108                 event->type() == QEvent::Wheel ||
 109                 event->type() == QEvent::MouseMove)
 110             return true;
 111     }
 112     return RemoteView::eventFilter(obj, event);
 113 }
 114
 115 QSize VncView::framebufferSize()
 116 {
 117     return m_frame.size();
 118 }
 119
 120 QSize VncView::sizeHint() const
 121 {
 122     return size();
 123 }
 124
 125 QSize VncView::minimumSizeHint() const
 126 {
 127     return size();
 128 }
 129
 130 void VncView::scaleResize(int w, int h)
 131 {
 132     RemoteView::scaleResize(w, h);
 133
 134     kDebug(5011) << "scaleResize(): " <<w << h;
 135     if (m_scale) {
 136         m_verticalFactor = (qreal) h / m_frame.height();
 137         m_horizontalFactor = (qreal) w / m_frame.width();
 138
 139         m_verticalFactor = m_horizontalFactor = qMin(m_verticalFactor, m_horizontalFactor);
 140
 141         const qreal newW = m_frame.width() * m_horizontalFactor;
 142         const qreal newH = m_frame.height() * m_verticalFactor;
 143         /*
 144         setMaximumSize(newW, newH); //This is a hack to force Qt to center the view in the scroll area
 145         //also causes the widget's size to flicker
 146         */
 147         resize(newW, newH);
 148     }
 149 }
 150
 151 void VncView::updateConfiguration()
 152 {
 153     RemoteView::updateConfiguration();
 154
 155     // Update the scaling mode in case KeepAspectRatio changed
 156     if(parentWidget())
 157             scaleResize(parentWidget()->width(), parentWidget()->height());
 158     else
 159         scaleResize(width(), height());
 160 }
 161
 162 void VncView::startQuitting()
 163 {
 164     kDebug(5011) << "about to quit";
 165
 166     const bool connected = status() == RemoteView::Connected;
 167
 168     setStatus(Disconnecting);
 169
 170     m_quitFlag = true;
 171
 172     if (connected) {
 173         vncThread.stop();
 174     }
 175
 176     vncThread.quit();
 177
 178     const bool quitSuccess = vncThread.wait(500);
 179
 180     kDebug(5011) << "Quit VNC thread success:" << quitSuccess;
 181
 182     setStatus(Disconnected);
 183 }
 184
 185 bool VncView::isQuitting()
 186 {
 187     return m_quitFlag;
 188 }
 189
 190 bool VncView::start()
 191 {
 192     vncThread.setHost(m_host);
 193     vncThread.setPort(m_port);
 194
 195     vncThread.setQuality(quality);
 196
 197     // set local cursor on by default because low quality mostly means slow internet connection
 198     if (quality == RemoteView::Low) {
 199         showDotCursor(RemoteView::CursorOn);
 200     }
 201
 202     setStatus(Connecting);
 203
 204     vncThread.start();
 205     return true;
 206 }
 207
 208 bool VncView::supportsScaling() const
 209 {
 210     return true;
 211 }
 212
 213 bool VncView::supportsLocalCursor() const
 214 {
 215     return true;
 216 }
 217
 218 void VncView::requestPassword()
 219 {
 220     kDebug(5011) << "request password";
 221
 222     if (m_authenticaionCanceled) {
 223         startQuitting();
 224         return;
 225     }
 226
 227     setStatus(Authenticating);
 228
 229     if (!m_url.password().isNull()) {
 230         vncThread.setPassword(m_url.password());
 231         return;
 232     }
 233
 234     bool ok;
 235     QString password = QInputDialog::getText(this, //krazy:exclude=qclasses
 236                                              tr("Password required"),
 237                                              tr("Please enter the password for the remote desktop:"),
 238                                              QLineEdit::Password, QString(), &ok);
 239     m_firstPasswordTry = false;
 240     if (ok)
 241         vncThread.setPassword(password);
 242     else
 243         m_authenticaionCanceled = true;
 244 }
 245
 246 void VncView::outputErrorMessage(const QString &message)
 247 {
 248     kDebug(5011) << message;
 249
 250     if (message == "INTERNAL:APPLE_VNC_COMPATIBILTY") {
 251         setCursor(localDotCursor());
 252         m_forceLocalCursor = true;
 253         return;
 254     }
 255
 256     startQuitting();
 257
 258     emit errorMessage(i18n("VNC failure"), message);
 259 }
 260
 261 void VncView::updateImage(int x, int y, int w, int h)
 262 {
 263 //     kDebug(5011) << "got update" << width() << height();
 264
 265     m_x = x;
 266     m_y = y;
 267     m_w = w;
 268     m_h = h;
 269
 270     if (m_horizontalFactor != 1.0 || m_verticalFactor != 1.0) {
 271         // If the view is scaled, grow the update rectangle to avoid artifacts
 272         m_x-=1;
 273         m_y-=1;
 274         m_w+=2;
 275         m_h+=2;
 276     }
 277
 278     m_frame = vncThread.image();
 279
 280     if (!m_initDone) {
 281         setAttribute(Qt::WA_StaticContents);
 282         setAttribute(Qt::WA_OpaquePaintEvent);
 283         installEventFilter(this);
 284
 285         setCursor(((m_dotCursorState == CursorOn) || m_forceLocalCursor) ? localDotCursor() : Qt::BlankCursor);
 286
 287         setMouseTracking(true); // get mouse events even when there is no mousebutton pressed
 288         setFocusPolicy(Qt::WheelFocus);
 289         setStatus(Connected);
 290 //         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 291         emit connected();
 292
 293         if (m_scale) {
 294             if (parentWidget())
 295                 scaleResize(parentWidget()->width(), parentWidget()->height());
 296             else
 297                 scaleResize(width(), height());
 298         }
 299
 300         m_initDone = true;
 301
 302     }
 303
 304         static QSize old_frame_size = QSize();
 305     if ((y == 0 && x == 0) && (m_frame.size() != old_frame_size)) {
 306             old_frame_size = m_frame.size();
 307         kDebug(5011) << "Updating framebuffer size";
 308         if (m_scale) {
 309             //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 310             if (parentWidget())
 311                 scaleResize(parentWidget()->width(), parentWidget()->height());
 312         } else {
 313             kDebug(5011) << "Resizing: " << m_frame.width() << m_frame.height();
 314             resize(m_frame.width(), m_frame.height());
 315             //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 316             //setMinimumSize(m_frame.width(), m_frame.height());
 317         }
 318         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 319     }
 320
 321     m_repaint = true;
 322     repaint(qRound(m_x * m_horizontalFactor), qRound(m_y * m_verticalFactor), qRound(m_w * m_horizontalFactor), qRound(m_h * m_verticalFactor));
 323     m_repaint = false;
 324 }
 325
 326 void VncView::setViewOnly(bool viewOnly)
 327 {
 328     RemoteView::setViewOnly(viewOnly);
 329
 330     m_dontSendClipboard = viewOnly;
 331
 332     if (viewOnly)
 333         setCursor(Qt::ArrowCursor);
 334     else
 335         setCursor(m_dotCursorState == CursorOn ? localDotCursor() : Qt::BlankCursor);
 336 }
 337
 338 void VncView::showDotCursor(DotCursorState state)
 339 {
 340     RemoteView::showDotCursor(state);
 341
 342     setCursor(state == CursorOn ? localDotCursor() : Qt::BlankCursor);
 343 }
 344
 345 void VncView::enableScaling(bool scale)
 346 {
 347     RemoteView::enableScaling(scale);
 348
 349     if (scale) {
 350         //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 351         //setMinimumSize(1, 1);
 352         if (parentWidget())
 353             scaleResize(parentWidget()->width(), parentWidget()->height());
 354             else
 355                 scaleResize(width(), height());
 356     } else {
 357         m_verticalFactor = 1.0;
 358         m_horizontalFactor = 1.0;
 359
 360         //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 361         //setMinimumSize(m_frame.width(), m_frame.height());
 362         resize(m_frame.width(), m_frame.height());
 363     }
 364 }
 365
 366 void VncView::setCut(const QString &text)
 367 {
 368     m_dontSendClipboard = true;
 369     m_clipboard->setText(text, QClipboard::Clipboard);
 370     m_clipboard->setText(text, QClipboard::Selection);
 371     m_dontSendClipboard = false;
 372 }
 373
 374 void VncView::paintEvent(QPaintEvent *event)
 375 {
 376 //     kDebug(5011) << "paint event: x: " << m_x << ", y: " << m_y << ", w: " << m_w << ", h: " << m_h;
 377     if (m_frame.isNull() || m_frame.format() == QImage::Format_Invalid) {
 378         kDebug(5011) << "no valid image to paint";
 379         RemoteView::paintEvent(event);
 380         return;
 381     }
 382
 383     event->accept();
 384
 385     QPainter painter(this);
 386
 387     if (m_repaint) {
 388 //         kDebug(5011) << "normal repaint";
 389         painter.drawImage(QRect(qRound(m_x*m_horizontalFactor), qRound(m_y*m_verticalFactor),
 390                                 qRound(m_w*m_horizontalFactor), qRound(m_h*m_verticalFactor)),
 391                           m_frame.copy(m_x, m_y, m_w, m_h).scaled(qRound(m_w*m_horizontalFactor),
 392                                                                   qRound(m_h*m_verticalFactor),
 393                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 394     } else {
 395          kDebug(5011) << "resize repaint";
 396         QRect rect = event->rect();
 397         if (!force_full_repaint and (rect.width() != width() || rect.height() != height())) {
 398              kDebug(5011) << "Partial repaint";
 399             const int sx = rect.x()/m_horizontalFactor;
 400             const int sy = rect.y()/m_verticalFactor;
 401             const int sw = rect.width()/m_horizontalFactor;
 402             const int sh = rect.height()/m_verticalFactor;
 403             painter.drawImage(rect,
 404                               m_frame.copy(sx, sy, sw, sh).scaled(rect.width(), rect.height(),
 405                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 406         } else {
 407              kDebug(5011) << "Full repaint" << width() << height() << m_frame.width() << m_frame.height();
 408             painter.drawImage(QRect(0, 0, width(), height()),
 409                               m_frame.scaled(m_frame.width() * m_horizontalFactor, m_frame.height() * m_verticalFactor,
 410                                              Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 411             force_full_repaint = false;
 412         }
 413     }
 414
 415     RemoteView::paintEvent(event);
 416 }
 417
 418 void VncView::resizeEvent(QResizeEvent *event)
 419 {
 420     RemoteView::resizeEvent(event);
 421     scaleResize(event->size().width(), event->size().height());
 422     forceFullRepaint();
 423 }
 424
 425 bool VncView::event(QEvent *event)
 426 {
 427     switch (event->type()) {
 428     case QEvent::KeyPress:
 429     case QEvent::KeyRelease:
 430 //         kDebug(5011) << "keyEvent";
 431         keyEventHandler(static_cast<QKeyEvent*>(event));
 432         return true;
 433         break;
 434     case QEvent::MouseButtonDblClick:
 435     case QEvent::MouseButtonPress:
 436     case QEvent::MouseButtonRelease:
 437     case QEvent::MouseMove:
 438 //         kDebug(5011) << "mouseEvent";
 439         mouseEventHandler(static_cast<QMouseEvent*>(event));
 440         return true;
 441         break;
 442     case QEvent::Wheel:
 443 //         kDebug(5011) << "wheelEvent";
 444         wheelEventHandler(static_cast<QWheelEvent*>(event));
 445         return true;
 446         break;
 447     default:
 448         return RemoteView::event(event);
 449     }
 450 }
 451
 452
 453 void VncView::mouseEventHandler(QMouseEvent *e)
 454 {
 455         static bool tap_detected = false;
 456         static bool double_tap_detected = false;
 457         static bool tap_drag_detected = false;
 458         static QTime press_time;
 459         static QTime up_time; //used for double clicks/tap&drag, for time after first tap
 460
 461         const int TAP_PRESS_TIME = 200;
 462         const int DOUBLE_TAP_UP_TIME = 500;
 463
 464         if(!e) { //flush held taps
 465                 if(tap_detected) {
 466                         m_buttonMask |= 0x01;
 467                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 468                         m_buttonMask &= 0xfe;
 469                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 470                         tap_detected = false;
 471                 } else if(double_tap_detected and press_time.elapsed() > TAP_PRESS_TIME) { //got tap + another press -> tap & drag
 472                         m_buttonMask |= 0x01;
 473                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 474                         double_tap_detected = false;
 475                         tap_drag_detected = true;
 476                 }
 477
 478                 return;
 479         }
 480
 481         if(e->x() < 0 or e->y() < 0) { //QScrollArea tends to send invalid events sometimes...
 482                 e->ignore();
 483                 return;
 484         }
 485
 486         cursor_x = qRound(e->x()/m_horizontalFactor);
 487         cursor_y = qRound(e->y()/m_verticalFactor);
 488         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask); // plain move event
 489
 490         if(e->type() == QEvent::MouseButtonPress or e->type() == QEvent::MouseButtonDblClick) {
 491                 press_time.start();
 492                 if(tap_detected and up_time.elapsed() < DOUBLE_TAP_UP_TIME) {
 493                         tap_detected = false;
 494                         double_tap_detected = true;
 495
 496                         QTimer::singleShot(TAP_PRESS_TIME, this, SLOT(mouseEventHandler()));
 497                 }
 498         } else if(e->type() == QEvent::MouseButtonRelease) {
 499                 if(tap_drag_detected) {
 500                         m_buttonMask &= 0xfe;
 501                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 502                         tap_drag_detected = false;
 503                 } else if(double_tap_detected) { //double click
 504                         double_tap_detected = false;
 505
 506                         m_buttonMask |= 0x01;
 507                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 508                         m_buttonMask &= 0xfe;
 509                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 510                         m_buttonMask |= 0x01;
 511                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 512                         m_buttonMask &= 0xfe;
 513                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 514                 } else if(press_time.elapsed() < TAP_PRESS_TIME) { //tap
 515                         up_time.start();
 516                         tap_detected = true;
 517                         QTimer::singleShot(DOUBLE_TAP_UP_TIME, this, SLOT(mouseEventHandler()));
 518                 }
 519
 520         }
 521
 522 /* for reference:
 523     if (e->type() != QEvent::MouseMove) {
 524         if ((e->type() == QEvent::MouseButtonPress)) {
 525             if (e->button() & Qt::LeftButton)
 526                 m_buttonMask |= 0x01;
 527             if (e->button() & Qt::MidButton)
 528                 m_buttonMask |= 0x02;
 529             if (e->button() & Qt::RightButton)
 530                 m_buttonMask |= 0x04;
 531         } else if (e->type() == QEvent::MouseButtonRelease) {
 532             if (e->button() & Qt::LeftButton)
 533                 m_buttonMask &= 0xfe;
 534             if (e->button() & Qt::MidButton)
 535                 m_buttonMask &= 0xfd;
 536             if (e->button() & Qt::RightButton)
 537                 m_buttonMask &= 0xfb;
 538         */
 539 }
 540
 541 void VncView::wheelEventHandler(QWheelEvent *event)
 542 {
 543     int eb = 0;
 544     if (event->delta() < 0)
 545         eb |= 0x10;
 546     else
 547         eb |= 0x8;
 548
 549     const int x = qRound(event->x() / m_horizontalFactor);
 550     const int y = qRound(event->y() / m_verticalFactor);
 551
 552         kDebug(5011) << "Wheelevent";
 553     vncThread.mouseEvent(x, y, eb | m_buttonMask);
 554     vncThread.mouseEvent(x, y, m_buttonMask);
 555 }
 556
 557 void VncView::keyEventHandler(QKeyEvent *e)
 558 {
 559     // strip away autorepeating KeyRelease; see bug #206598
 560     if (e->isAutoRepeat() && (e->type() == QEvent::KeyRelease))
 561         return;
 562
 563 // parts of this code are based on http://italc.sourcearchive.com/documentation/1.0.9.1/vncview_8cpp-source.html
 564     rfbKeySym k = e->nativeVirtualKey();
 565
 566     // we do not handle Key_Backtab separately as the Shift-modifier
 567     // is already enabled
 568     if (e->key() == Qt::Key_Backtab) {
 569         k = XK_Tab;
 570     }
 571
 572     const bool pressed = (e->type() == QEvent::KeyPress);
 573
 574     // handle modifiers
 575     if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L) {
 576         if (pressed) {
 577             m_mods[k] = true;
 578         } else if (m_mods.contains(k)) {
 579             m_mods.remove(k);
 580         } else {
 581             unpressModifiers();
 582         }
 583     }
 584
 585
 586         int current_zoom = -1;
 587         if(e->key() == Qt::Key_F8)
 588                 current_zoom = left_zoom;
 589         else if(e->key() == Qt::Key_F7)
 590                 current_zoom = right_zoom;
 591         else if (k)
 592                 vncThread.keyEvent(k, pressed);
 593
 594         if(current_zoom == -1)
 595                 return;
 596
 597         //handle zoom buttons
 598         if(current_zoom == 0) { //left click
 599                 if(pressed)
 600                         m_buttonMask |= 0x01;
 601                 else
 602                         m_buttonMask &= 0xfe;
 603                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 604         } else if(current_zoom == 1) { //right click
 605                 if(pressed)
 606                         m_buttonMask |= 0x04;
 607                 else
 608                         m_buttonMask &= 0xfb;
 609                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 610         } else if(current_zoom == 2) { //wheel up
 611                 int eb = 0x10;
 612                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 613                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 614         } else if(current_zoom == 3) { //wheel down
 615                 int eb = 0x8;
 616                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 617                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 618         } else if(current_zoom == 4) { //page up
 619                 vncThread.keyEvent(0xff55, pressed);
 620         } else if(current_zoom == 5) { //page down
 621                 vncThread.keyEvent(0xff56, pressed);
 622         }
 623 }
 624
 625 void VncView::unpressModifiers()
 626 {
 627     const QList<unsigned int> keys = m_mods.keys();
 628     QList<unsigned int>::const_iterator it = keys.constBegin();
 629     while (it != keys.end()) {
 630         vncThread.keyEvent(*it, false);
 631         it++;
 632     }
 633     m_mods.clear();
 634 }
 635
 636 void VncView::clipboardSelectionChanged()
 637 {
 638     kDebug(5011);
 639
 640     if (m_status != Connected)
 641         return;
 642
 643     if (m_clipboard->ownsSelection() || m_dontSendClipboard)
 644         return;
 645
 646     const QString text = m_clipboard->text(QClipboard::Selection);
 647
 648     vncThread.clientCut(text);
 649 }
 650
 651 void VncView::clipboardDataChanged()
 652 {
 653     kDebug(5011);
 654
 655     if (m_status != Connected)
 656         return;
 657
 658     if (m_clipboard->ownsClipboard() || m_dontSendClipboard)
 659         return;
 660
 661     const QString text = m_clipboard->text(QClipboard::Clipboard);
 662
 663     vncThread.clientCut(text);
 664 }
 665
 666 //fake key events
 667 void VncView::sendKey(Qt::Key key)
 668 {
 669         int k = 0; //X11 keysym
 670         switch(key) {
 671         case Qt::Key_Escape:
 672                 k = 0xff1b;
 673                 break;
 674         case Qt::Key_Tab:
 675                 k = 0xff09;
 676                 break;
 677         case Qt::Key_PageUp:
 678                 k = 0xff55;
 679                 break;
 680         case Qt::Key_PageDown:
 681                 k = 0xff56;
 682                 break;
 683         case Qt::Key_Meta: //TODO: test this.
 684                 k = XK_Super_L;
 685                 break;
 686         case Qt::Key_Alt:
 687                 k = XK_Alt_L;
 688                 break;
 689         default:
 690                 kDebug(5011) << "unhandled Qt::Key value " << key;
 691                 return;
 692         }
 693
 694         if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L || k == XK_Super_L) {
 695                 if (m_mods.contains(k)) { //release
 696                         m_mods.remove(k);
 697                         vncThread.keyEvent(k, false);
 698                 } else { //press
 699                         m_mods[k] = true;
 700                         vncThread.keyEvent(k, true);
 701                 }
 702         } else { //normal key
 703                 vncThread.keyEvent(k, true);
 704                 vncThread.keyEvent(k, false);
 705         }
 706 }
 707
 708 void VncView::reloadSettings()
 709 {
 710         QSettings settings;
 711         left_zoom = settings.value("left_zoom", 0).toInt();
 712         right_zoom = settings.value("right_zoom", 1).toInt();
 713 }
 714
 715 #include "moc_vncview.cpp"