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 <QCheckBox>
  34 #include <QDialog>
  35 #include <QImage>
  36 #include <QHBoxLayout>
  37 #include <QVBoxLayout>
  38 #include <QPainter>
  39 #include <QMouseEvent>
  40 #include <QPushButton>
  41 #include <QEvent>
  42 #include <QSettings>
  43 #include <QTime>
  44 #include <QTimer>
  45
  46
  47 // Definition of key modifier mask constants
  48 #define KMOD_Alt_R      0x01
  49 #define KMOD_Alt_L      0x02
  50 #define KMOD_Meta_L     0x04
  51 #define KMOD_Control_L  0x08
  52 #define KMOD_Shift_L    0x10
  53
  54 VncView::VncView(QWidget *parent, const KUrl &url, RemoteView::Quality quality)
  55         : RemoteView(parent),
  56         m_initDone(false),
  57         m_buttonMask(0),
  58         cursor_x(0),
  59         cursor_y(0),
  60         m_repaint(false),
  61         m_quitFlag(false),
  62         m_firstPasswordTry(true),
  63         m_dontSendClipboard(false),
  64         m_horizontalFactor(1.0),
  65         m_verticalFactor(1.0),
  66         m_forceLocalCursor(false),
  67         force_full_repaint(false),
  68         quality(quality)
  69 {
  70     m_url = url;
  71     m_host = url.host();
  72     m_port = url.port();
  73
  74     connect(&vncThread, SIGNAL(imageUpdated(int, int, int, int)), this, SLOT(updateImage(int, int, int, int)), Qt::BlockingQueuedConnection);
  75     connect(&vncThread, SIGNAL(gotCut(const QString&)), this, SLOT(setCut(const QString&)), Qt::BlockingQueuedConnection);
  76     connect(&vncThread, SIGNAL(passwordRequest()), this, SLOT(requestPassword()), Qt::BlockingQueuedConnection);
  77     connect(&vncThread, SIGNAL(outputErrorMessage(QString)), this, SLOT(outputErrorMessage(QString)));
  78
  79     m_clipboard = QApplication::clipboard();
  80     connect(m_clipboard, SIGNAL(selectionChanged()), this, SLOT(clipboardSelectionChanged()));
  81     connect(m_clipboard, SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
  82
  83     reloadSettings();
  84 }
  85
  86 VncView::~VncView()
  87 {
  88     unpressModifiers();
  89
  90     // Disconnect all signals so that we don't get any more callbacks from the client thread
  91     vncThread.disconnect();
  92
  93     startQuitting();
  94 }
  95
  96 void VncView::forceFullRepaint()
  97 {
  98         force_full_repaint = true;
  99         repaint();
 100 }
 101
 102 bool VncView::eventFilter(QObject *obj, QEvent *event)
 103 {
 104     if (m_viewOnly) {
 105         if (event->type() == QEvent::KeyPress ||
 106                 event->type() == QEvent::KeyRelease ||
 107                 event->type() == QEvent::MouseButtonDblClick ||
 108                 event->type() == QEvent::MouseButtonPress ||
 109                 event->type() == QEvent::MouseButtonRelease ||
 110                 event->type() == QEvent::Wheel ||
 111                 event->type() == QEvent::MouseMove)
 112             return true;
 113     }
 114     return RemoteView::eventFilter(obj, event);
 115 }
 116
 117 QSize VncView::framebufferSize()
 118 {
 119     return m_frame.size();
 120 }
 121
 122 QSize VncView::sizeHint() const
 123 {
 124     return size();
 125 }
 126
 127 QSize VncView::minimumSizeHint() const
 128 {
 129     return size();
 130 }
 131
 132 void VncView::scaleResize(int w, int h)
 133 {
 134     RemoteView::scaleResize(w, h);
 135
 136     kDebug(5011) << "scaleResize(): " <<w << h;
 137     if (m_scale) {
 138         m_verticalFactor = (qreal) h / m_frame.height();
 139         m_horizontalFactor = (qreal) w / m_frame.width();
 140
 141         m_verticalFactor = m_horizontalFactor = qMin(m_verticalFactor, m_horizontalFactor);
 142
 143         const qreal newW = m_frame.width() * m_horizontalFactor;
 144         const qreal newH = m_frame.height() * m_verticalFactor;
 145         /*
 146         setMaximumSize(newW, newH); //This is a hack to force Qt to center the view in the scroll area
 147         //also causes the widget's size to flicker
 148         */
 149         resize(newW, newH);
 150     }
 151 }
 152
 153
 154 void VncView::startQuitting()
 155 {
 156     kDebug(5011) << "about to quit";
 157
 158     const bool connected = status() == RemoteView::Connected;
 159
 160     setStatus(Disconnecting);
 161
 162     m_quitFlag = true;
 163
 164     if (connected) {
 165         vncThread.stop();
 166     }
 167
 168     vncThread.quit();
 169
 170     const bool quitSuccess = vncThread.wait(500);
 171
 172     kDebug(5011) << "startQuitting(): Quit VNC thread success:" << quitSuccess;
 173
 174     setStatus(Disconnected);
 175 }
 176
 177 bool VncView::isQuitting()
 178 {
 179     return m_quitFlag;
 180 }
 181
 182 bool VncView::start()
 183 {
 184     vncThread.setHost(m_host);
 185     vncThread.setPort(m_port);
 186
 187     vncThread.setQuality(quality);
 188
 189     // set local cursor on by default because low quality mostly means slow internet connection
 190     if (quality == RemoteView::Low) {
 191         showDotCursor(RemoteView::CursorOn);
 192     }
 193
 194     setStatus(Connecting);
 195
 196     vncThread.start();
 197     return true;
 198 }
 199
 200 bool VncView::supportsScaling() const
 201 {
 202     return true;
 203 }
 204
 205 bool VncView::supportsLocalCursor() const
 206 {
 207     return true;
 208 }
 209
 210 void VncView::requestPassword()
 211 {
 212     kDebug(5011) << "request password";
 213
 214     setStatus(Authenticating);
 215
 216     if (!m_url.password().isNull()) {
 217         vncThread.setPassword(m_url.password());
 218         return;
 219     }
 220
 221         QSettings settings;
 222         settings.beginGroup("hosts");
 223         QString password = settings.value(QString("%1/password").arg(m_host), "").toString();
 224         //check for saved password
 225         if(m_firstPasswordTry and !password.isEmpty()) {
 226                 kDebug(5011) << "Trying saved password";
 227                 m_firstPasswordTry = false;
 228                 vncThread.setPassword(password);
 229                 return;
 230         }
 231         m_firstPasswordTry = false;
 232
 233         //build dialog
 234         QDialog dialog(this);
 235         dialog.setWindowTitle(tr("Password required"));
 236
 237         QLineEdit passwordbox;
 238         passwordbox.setEchoMode(QLineEdit::Password);
 239         passwordbox.setText(password);
 240         QCheckBox save_password(tr("Save Password"));
 241         save_password.setChecked(!password.isEmpty()); //offer to overwrite saved password
 242         QPushButton ok_button(tr("Done"));
 243         ok_button.setMaximumWidth(100);
 244         connect(&ok_button, SIGNAL(clicked()),
 245                 &dialog, SLOT(accept()));
 246
 247         QHBoxLayout layout1;
 248         QVBoxLayout layout2;
 249         layout2.addWidget(&passwordbox);
 250         layout2.addWidget(&save_password);
 251         layout1.addLayout(&layout2);
 252         layout1.addWidget(&ok_button);
 253         dialog.setLayout(&layout1);
 254
 255         if(dialog.exec()) { //dialog accepted
 256                 password = passwordbox.text();
 257
 258                 if(save_password.isChecked()) {
 259                         kDebug(5011) << "Saving password for host '" << m_host << "'";
 260
 261                         settings.setValue(QString("%1/password").arg(m_host), password);
 262                         settings.sync();
 263                 }
 264
 265                 vncThread.setPassword(password);
 266         } else {
 267                 startQuitting();
 268         }
 269 }
 270
 271 void VncView::outputErrorMessage(const QString &message)
 272 {
 273     kDebug(5011) << message;
 274
 275     if (message == "INTERNAL:APPLE_VNC_COMPATIBILTY") {
 276         setCursor(localDotCursor());
 277         m_forceLocalCursor = true;
 278         return;
 279     }
 280
 281     startQuitting();
 282
 283     emit errorMessage(i18n("VNC failure"), message);
 284 }
 285
 286 void VncView::updateImage(int x, int y, int w, int h)
 287 {
 288         if(!QApplication::focusWidget()) { //no focus, we're probably minimized
 289                 return;
 290         }
 291      //kDebug(5011) << "got update" << width() << height();
 292
 293     m_x = x;
 294     m_y = y;
 295     m_w = w;
 296     m_h = h;
 297
 298     if (m_horizontalFactor != 1.0 || m_verticalFactor != 1.0) {
 299         // If the view is scaled, grow the update rectangle to avoid artifacts
 300         int x_extrapixels = 1.0/m_horizontalFactor+1;
 301         int y_extrapixels = 1.0/m_verticalFactor+1;
 302
 303         m_x-=x_extrapixels;
 304         m_y-=y_extrapixels;
 305         m_w+=2*x_extrapixels;
 306         m_h+=2*y_extrapixels;
 307     }
 308
 309     m_frame = vncThread.image();
 310
 311     if (!m_initDone) {
 312         setAttribute(Qt::WA_StaticContents);
 313         setAttribute(Qt::WA_OpaquePaintEvent);
 314         installEventFilter(this);
 315
 316         setCursor(((m_dotCursorState == CursorOn) || m_forceLocalCursor) ? localDotCursor() : Qt::BlankCursor);
 317
 318         setMouseTracking(true); // get mouse events even when there is no mousebutton pressed
 319         setFocusPolicy(Qt::WheelFocus);
 320         setStatus(Connected);
 321 //         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 322         emit connected();
 323
 324         if (m_scale) {
 325             if (parentWidget())
 326                 scaleResize(parentWidget()->width(), parentWidget()->height());
 327             else
 328                 scaleResize(width(), height());
 329         }
 330
 331         m_initDone = true;
 332
 333     }
 334
 335         static QSize old_frame_size = QSize();
 336     if ((y == 0 && x == 0) && (m_frame.size() != old_frame_size)) {
 337             old_frame_size = m_frame.size();
 338         kDebug(5011) << "Updating framebuffer size";
 339         if (m_scale) {
 340             //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 341             if (parentWidget())
 342                 scaleResize(parentWidget()->width(), parentWidget()->height());
 343         } else {
 344             kDebug(5011) << "Resizing: " << m_frame.width() << m_frame.height();
 345             resize(m_frame.width(), m_frame.height());
 346             //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 347             //setMinimumSize(m_frame.width(), m_frame.height());
 348         }
 349         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 350     }
 351
 352     m_repaint = true;
 353     repaint(qRound(m_x * m_horizontalFactor), qRound(m_y * m_verticalFactor), qRound(m_w * m_horizontalFactor), qRound(m_h * m_verticalFactor));
 354     m_repaint = false;
 355 }
 356
 357 void VncView::setViewOnly(bool viewOnly)
 358 {
 359     RemoteView::setViewOnly(viewOnly);
 360
 361     m_dontSendClipboard = viewOnly;
 362
 363     if (viewOnly)
 364         setCursor(Qt::ArrowCursor);
 365     else
 366         setCursor(m_dotCursorState == CursorOn ? localDotCursor() : Qt::BlankCursor);
 367 }
 368
 369 void VncView::showDotCursor(DotCursorState state)
 370 {
 371     RemoteView::showDotCursor(state);
 372
 373     setCursor(state == CursorOn ? localDotCursor() : Qt::BlankCursor);
 374 }
 375
 376 void VncView::enableScaling(bool scale)
 377 {
 378     RemoteView::enableScaling(scale);
 379
 380     if (scale) {
 381         //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 382         //setMinimumSize(1, 1);
 383         if (parentWidget())
 384             scaleResize(parentWidget()->width(), parentWidget()->height());
 385             else
 386                 scaleResize(width(), height());
 387     } else {
 388         m_verticalFactor = 1.0;
 389         m_horizontalFactor = 1.0;
 390
 391         //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 392         //setMinimumSize(m_frame.width(), m_frame.height());
 393         resize(m_frame.width(), m_frame.height());
 394     }
 395 }
 396
 397 void VncView::setCut(const QString &text)
 398 {
 399     m_dontSendClipboard = true;
 400     m_clipboard->setText(text, QClipboard::Clipboard);
 401     m_clipboard->setText(text, QClipboard::Selection);
 402     m_dontSendClipboard = false;
 403 }
 404
 405 void VncView::paintEvent(QPaintEvent *event)
 406 {
 407      //kDebug(5011) << "paint event: x: " << m_x << ", y: " << m_y << ", w: " << m_w << ", h: " << m_h;
 408     if (m_frame.isNull() || m_frame.format() == QImage::Format_Invalid) {
 409         kDebug(5011) << "no valid image to paint";
 410         RemoteView::paintEvent(event);
 411         return;
 412     }
 413
 414     event->accept();
 415
 416     QPainter painter(this);
 417
 418     if (m_repaint and !force_full_repaint) {
 419 //         kDebug(5011) << "normal repaint";
 420         painter.drawImage(QRect(qRound(m_x*m_horizontalFactor), qRound(m_y*m_verticalFactor),
 421                                 qRound(m_w*m_horizontalFactor), qRound(m_h*m_verticalFactor)),
 422                           m_frame.copy(m_x, m_y, m_w, m_h).scaled(qRound(m_w*m_horizontalFactor),
 423                                                                   qRound(m_h*m_verticalFactor),
 424                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 425     } else {
 426          //kDebug(5011) << "resize repaint";
 427         QRect rect = event->rect();
 428         if (!force_full_repaint and (rect.width() != width() || rect.height() != height())) {
 429           //   kDebug(5011) << "Partial repaint";
 430             const int sx = rect.x()/m_horizontalFactor;
 431             const int sy = rect.y()/m_verticalFactor;
 432             const int sw = rect.width()/m_horizontalFactor;
 433             const int sh = rect.height()/m_verticalFactor;
 434             painter.drawImage(rect,
 435                               m_frame.copy(sx, sy, sw, sh).scaled(rect.width(), rect.height(),
 436                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 437         } else {
 438              kDebug(5011) << "Full repaint" << width() << height() << m_frame.width() << m_frame.height();
 439             painter.drawImage(QRect(0, 0, width(), height()),
 440                               m_frame.scaled(m_frame.width() * m_horizontalFactor, m_frame.height() * m_verticalFactor,
 441                                              Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 442             force_full_repaint = false;
 443         }
 444     }
 445
 446     RemoteView::paintEvent(event);
 447 }
 448
 449 void VncView::resizeEvent(QResizeEvent *event)
 450 {
 451     RemoteView::resizeEvent(event);
 452     scaleResize(event->size().width(), event->size().height());
 453     forceFullRepaint();
 454 }
 455
 456 bool VncView::event(QEvent *event)
 457 {
 458     switch (event->type()) {
 459     case QEvent::KeyPress:
 460     case QEvent::KeyRelease:
 461 //         kDebug(5011) << "keyEvent";
 462         keyEventHandler(static_cast<QKeyEvent*>(event));
 463         return true;
 464         break;
 465     case QEvent::MouseButtonDblClick:
 466     case QEvent::MouseButtonPress:
 467     case QEvent::MouseButtonRelease:
 468     case QEvent::MouseMove:
 469 //         kDebug(5011) << "mouseEvent";
 470         mouseEventHandler(static_cast<QMouseEvent*>(event));
 471         return true;
 472         break;
 473     case QEvent::Wheel:
 474 //         kDebug(5011) << "wheelEvent";
 475         wheelEventHandler(static_cast<QWheelEvent*>(event));
 476         return true;
 477         break;
 478     case QEvent::WindowActivate: //input panel may have been closed, prevent IM from interfering with hardware keyboard
 479         setAttribute(Qt::WA_InputMethodEnabled, false);
 480         //fall through
 481     default:
 482         return RemoteView::event(event);
 483     }
 484 }
 485
 486 //call with e == 0 to flush held events
 487 void VncView::mouseEventHandler(QMouseEvent *e)
 488 {
 489         static bool tap_detected = false;
 490         static bool double_tap_detected = false;
 491         static bool tap_drag_detected = false;
 492         static QTime press_time;
 493         static QTime up_time; //used for double clicks/tap&drag, for time after first tap
 494
 495         const int TAP_PRESS_TIME = 180;
 496         const int DOUBLE_TAP_UP_TIME = 500;
 497
 498         if(!e) { //flush held taps
 499                 if(tap_detected) {
 500                         m_buttonMask |= 0x01;
 501                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 502                         m_buttonMask &= 0xfe;
 503                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 504                         tap_detected = false;
 505                 } else if(double_tap_detected and press_time.elapsed() > TAP_PRESS_TIME) { //got tap + another press -> tap & drag
 506                         m_buttonMask |= 0x01;
 507                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 508                         double_tap_detected = false;
 509                         tap_drag_detected = true;
 510                 }
 511
 512                 return;
 513         }
 514
 515         if(e->x() < 0 or e->y() < 0) { //QScrollArea tends to send invalid events sometimes...
 516                 e->ignore();
 517                 return;
 518         }
 519
 520         cursor_x = qRound(e->x()/m_horizontalFactor);
 521         cursor_y = qRound(e->y()/m_verticalFactor);
 522         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask); // plain move event
 523
 524         if(disable_tapping) { //only move cursor
 525                 e->ignore();
 526                 return;
 527         }
 528
 529         if(e->type() == QEvent::MouseButtonPress or e->type() == QEvent::MouseButtonDblClick) {
 530                 press_time.start();
 531                 if(tap_detected and up_time.elapsed() < DOUBLE_TAP_UP_TIME) {
 532                         tap_detected = false;
 533                         double_tap_detected = true;
 534
 535                         QTimer::singleShot(TAP_PRESS_TIME, this, SLOT(mouseEventHandler()));
 536                 }
 537         } else if(e->type() == QEvent::MouseButtonRelease) {
 538                 if(tap_drag_detected) {
 539                         m_buttonMask &= 0xfe;
 540                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 541                         tap_drag_detected = false;
 542                 } else if(double_tap_detected) { //double click
 543                         double_tap_detected = false;
 544
 545                         m_buttonMask |= 0x01;
 546                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 547                         m_buttonMask &= 0xfe;
 548                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 549                         m_buttonMask |= 0x01;
 550                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 551                         m_buttonMask &= 0xfe;
 552                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 553                 } else if(press_time.elapsed() < TAP_PRESS_TIME) { //tap
 554                         up_time.start();
 555                         tap_detected = true;
 556                         QTimer::singleShot(DOUBLE_TAP_UP_TIME, this, SLOT(mouseEventHandler()));
 557                 }
 558
 559         }
 560
 561 /* for reference:
 562     if (e->type() != QEvent::MouseMove) {
 563         if ((e->type() == QEvent::MouseButtonPress)) {
 564             if (e->button() & Qt::LeftButton)
 565                 m_buttonMask |= 0x01;
 566             if (e->button() & Qt::MidButton)
 567                 m_buttonMask |= 0x02;
 568             if (e->button() & Qt::RightButton)
 569                 m_buttonMask |= 0x04;
 570         } else if (e->type() == QEvent::MouseButtonRelease) {
 571             if (e->button() & Qt::LeftButton)
 572                 m_buttonMask &= 0xfe;
 573             if (e->button() & Qt::MidButton)
 574                 m_buttonMask &= 0xfd;
 575             if (e->button() & Qt::RightButton)
 576                 m_buttonMask &= 0xfb;
 577         */
 578 }
 579
 580 void VncView::wheelEventHandler(QWheelEvent *event)
 581 {
 582     int eb = 0;
 583     if (event->delta() < 0)
 584         eb |= 0x10;
 585     else
 586         eb |= 0x8;
 587
 588     const int x = qRound(event->x() / m_horizontalFactor);
 589     const int y = qRound(event->y() / m_verticalFactor);
 590
 591         kDebug(5011) << "Wheelevent";
 592     vncThread.mouseEvent(x, y, eb | m_buttonMask);
 593     vncThread.mouseEvent(x, y, m_buttonMask);
 594 }
 595
 596 void VncView::keyEventHandler(QKeyEvent *e)
 597 {
 598     // strip away autorepeating KeyRelease; see bug #206598
 599     if (e->isAutoRepeat() && (e->type() == QEvent::KeyRelease)) {
 600         return;
 601     }
 602
 603 // parts of this code are based on http://italc.sourcearchive.com/documentation/1.0.9.1/vncview_8cpp-source.html
 604     rfbKeySym k = e->nativeVirtualKey();
 605
 606     // we do not handle Key_Backtab separately as the Shift-modifier
 607     // is already enabled
 608     if (e->key() == Qt::Key_Backtab) {
 609         k = XK_Tab;
 610     }
 611
 612     const bool pressed = (e->type() == QEvent::KeyPress);
 613
 614     // handle modifiers
 615     if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L) {
 616         if (pressed) {
 617             m_mods[k] = true;
 618         } else if (m_mods.contains(k)) {
 619             m_mods.remove(k);
 620         } else {
 621             unpressModifiers();
 622         }
 623     }
 624
 625
 626         int current_zoom = -1;
 627         if(e->key() == Qt::Key_F8)
 628                 current_zoom = left_zoom;
 629         else if(e->key() == Qt::Key_F7)
 630                 current_zoom = right_zoom;
 631         else if (k) {
 632         //      kDebug(5011) << "got '" << e->text() << "'.";
 633                 vncThread.keyEvent(k, pressed);
 634         } else {
 635                 kDebug(5011) << "nativeVirtualKey() for '" << e->text() << "' failed.";
 636                 return;
 637         }
 638
 639         if(current_zoom == -1)
 640                 return;
 641
 642         //handle zoom buttons
 643         if(current_zoom == 0) { //left click
 644                 if(pressed)
 645                         m_buttonMask |= 0x01;
 646                 else
 647                         m_buttonMask &= 0xfe;
 648                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 649         } else if(current_zoom == 1) { //right click
 650                 if(pressed)
 651                         m_buttonMask |= 0x04;
 652                 else
 653                         m_buttonMask &= 0xfb;
 654                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 655         } else if(current_zoom == 2) { //middle click
 656                 if(pressed)
 657                         m_buttonMask |= 0x02;
 658                 else
 659                         m_buttonMask &= 0xfd;
 660                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 661         } else if(current_zoom == 3 and pressed) { //wheel up
 662                 int eb = 0x8;
 663                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 664                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 665         } else if(current_zoom == 4 and pressed) { //wheel down
 666                 int eb = 0x10;
 667                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 668                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 669         } else if(current_zoom == 5) { //page up
 670                 vncThread.keyEvent(0xff55, pressed);
 671         } else if(current_zoom == 6) { //page down
 672                 vncThread.keyEvent(0xff56, pressed);
 673         }
 674 }
 675
 676 void VncView::unpressModifiers()
 677 {
 678     const QList<unsigned int> keys = m_mods.keys();
 679     QList<unsigned int>::const_iterator it = keys.constBegin();
 680     while (it != keys.end()) {
 681         vncThread.keyEvent(*it, false);
 682         it++;
 683     }
 684     m_mods.clear();
 685 }
 686
 687 void VncView::clipboardSelectionChanged()
 688 {
 689     kDebug(5011);
 690
 691     if (m_status != Connected)
 692         return;
 693
 694     if (m_clipboard->ownsSelection() || m_dontSendClipboard)
 695         return;
 696
 697     const QString text = m_clipboard->text(QClipboard::Selection);
 698
 699     vncThread.clientCut(text);
 700 }
 701
 702 void VncView::clipboardDataChanged()
 703 {
 704     kDebug(5011);
 705
 706     if (m_status != Connected)
 707         return;
 708
 709     if (m_clipboard->ownsClipboard() || m_dontSendClipboard)
 710         return;
 711
 712     const QString text = m_clipboard->text(QClipboard::Clipboard);
 713
 714     vncThread.clientCut(text);
 715 }
 716
 717 //fake key events
 718 void VncView::sendKey(Qt::Key key)
 719 {
 720         int k = 0; //X11 keysym
 721         switch(key) {
 722         case Qt::Key_Escape:
 723                 k = 0xff1b;
 724                 break;
 725         case Qt::Key_Tab:
 726                 k = 0xff09;
 727                 break;
 728         case Qt::Key_PageUp:
 729                 k = 0xff55;
 730                 break;
 731         case Qt::Key_PageDown:
 732                 k = 0xff56;
 733                 break;
 734         case Qt::Key_Return:
 735                 k = 0xff0d;
 736                 break;
 737         case Qt::Key_Meta: //TODO: test this.
 738                 k = XK_Super_L;
 739                 break;
 740         case Qt::Key_Alt:
 741                 k = XK_Alt_L;
 742                 break;
 743         default:
 744                 kDebug(5011) << "sendKey(): Unhandled Qt::Key value " << key;
 745                 return;
 746         }
 747
 748         if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L || k == XK_Super_L) {
 749                 if (m_mods.contains(k)) { //release
 750                         m_mods.remove(k);
 751                         vncThread.keyEvent(k, false);
 752                 } else { //press
 753                         m_mods[k] = true;
 754                         vncThread.keyEvent(k, true);
 755                 }
 756         } else { //normal key
 757                 vncThread.keyEvent(k, true);
 758                 vncThread.keyEvent(k, false);
 759         }
 760 }
 761
 762 void VncView::reloadSettings()
 763 {
 764         QSettings settings;
 765         left_zoom = settings.value("left_zoom", 0).toInt();
 766         right_zoom = settings.value("right_zoom", 1).toInt();
 767         disable_tapping = settings.value("disable_tapping", false).toBool();
 768 }
 769
 770 //convert commitString into keyevents
 771 void VncView::inputMethodEvent(QInputMethodEvent *event)
 772 {
 773         //TODO handle replacements
 774         //NOTE for the return key to work Qt needs to enable multiline input, which only works for Q(Plain)TextEdit
 775
 776         //kDebug(5011) << event->commitString() << "|" << event->preeditString() << "|" << event->replacementLength() << "|" << event->replacementStart();
 777         QString letters = event->commitString();
 778         for(int i = 0; i < letters.length(); i++) {
 779                 char k = letters.at(i).toLatin1(); //works with all 'normal' keys, not umlauts.
 780                 if(!k) {
 781                         kDebug(5011) << "unhandled key";
 782                         continue;
 783                 }
 784                 vncThread.keyEvent(k, true);
 785                 vncThread.keyEvent(k, false);
 786         }
 787 }
 788
 789
 790 #include "moc_vncview.cpp"