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