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_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
  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     vncThread.disconnect();
  87
  88     startQuitting();
  89 }
  90
  91 void VncView::forceFullRepaint()
  92 {
  93         kDebug(5011) << "forceFullRepaint()";
  94         force_full_repaint = true;
  95         repaint();
  96 }
  97
  98 bool VncView::eventFilter(QObject *obj, QEvent *event)
  99 {
 100     if (m_viewOnly) {
 101         if (event->type() == QEvent::KeyPress ||
 102                 event->type() == QEvent::KeyRelease ||
 103                 event->type() == QEvent::MouseButtonDblClick ||
 104                 event->type() == QEvent::MouseButtonPress ||
 105                 event->type() == QEvent::MouseButtonRelease ||
 106                 event->type() == QEvent::Wheel ||
 107                 event->type() == QEvent::MouseMove)
 108             return true;
 109     }
 110     if(event->type() == 200)
 111             kDebug(5011) << "eventFilter: 200";
 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
 152 void VncView::startQuitting()
 153 {
 154     kDebug(5011) << "about to quit";
 155
 156     const bool connected = status() == RemoteView::Connected;
 157
 158     setStatus(Disconnecting);
 159
 160     m_quitFlag = true;
 161
 162     if (connected) {
 163         vncThread.stop();
 164     }
 165
 166     vncThread.quit();
 167
 168     const bool quitSuccess = vncThread.wait(500);
 169
 170     kDebug(5011) << "startQuitting(): Quit VNC thread success:" << quitSuccess;
 171
 172     setStatus(Disconnected);
 173 }
 174
 175 bool VncView::isQuitting()
 176 {
 177     return m_quitFlag;
 178 }
 179
 180 bool VncView::start()
 181 {
 182     vncThread.setHost(m_host);
 183     vncThread.setPort(m_port);
 184
 185     vncThread.setQuality(quality);
 186
 187     // set local cursor on by default because low quality mostly means slow internet connection
 188     if (quality == RemoteView::Low) {
 189         showDotCursor(RemoteView::CursorOn);
 190     }
 191
 192     setStatus(Connecting);
 193
 194     vncThread.start();
 195     return true;
 196 }
 197
 198 bool VncView::supportsScaling() const
 199 {
 200     return true;
 201 }
 202
 203 bool VncView::supportsLocalCursor() const
 204 {
 205     return true;
 206 }
 207
 208 void VncView::requestPassword()
 209 {
 210     kDebug(5011) << "request password";
 211
 212     setStatus(Authenticating);
 213
 214     if (!m_url.password().isNull()) {
 215         vncThread.setPassword(m_url.password());
 216         return;
 217     }
 218
 219     bool ok;
 220     QString password = QInputDialog::getText(this, //krazy:exclude=qclasses
 221                                              tr("Password required"),
 222                                              tr("Please enter the password for the remote desktop:"),
 223                                              QLineEdit::Password, QString(), &ok);
 224     m_firstPasswordTry = false;
 225     if (ok) {
 226         vncThread.setPassword(password);
 227     } else {
 228         startQuitting();
 229     }
 230 }
 231
 232 void VncView::outputErrorMessage(const QString &message)
 233 {
 234     kDebug(5011) << message;
 235
 236     if (message == "INTERNAL:APPLE_VNC_COMPATIBILTY") {
 237         setCursor(localDotCursor());
 238         m_forceLocalCursor = true;
 239         return;
 240     }
 241
 242     startQuitting();
 243
 244     emit errorMessage(i18n("VNC failure"), message);
 245 }
 246
 247 void VncView::updateImage(int x, int y, int w, int h)
 248 {
 249 //     kDebug(5011) << "got update" << width() << height();
 250
 251     m_x = x;
 252     m_y = y;
 253     m_w = w;
 254     m_h = h;
 255
 256     if (m_horizontalFactor != 1.0 || m_verticalFactor != 1.0) {
 257         // If the view is scaled, grow the update rectangle to avoid artifacts
 258         m_x-=1;
 259         m_y-=1;
 260         m_w+=2;
 261         m_h+=2;
 262     }
 263
 264     m_frame = vncThread.image();
 265
 266     if (!m_initDone) {
 267         setAttribute(Qt::WA_StaticContents);
 268         setAttribute(Qt::WA_OpaquePaintEvent);
 269         installEventFilter(this);
 270
 271         setCursor(((m_dotCursorState == CursorOn) || m_forceLocalCursor) ? localDotCursor() : Qt::BlankCursor);
 272
 273         setMouseTracking(true); // get mouse events even when there is no mousebutton pressed
 274         setFocusPolicy(Qt::WheelFocus);
 275         setStatus(Connected);
 276 //         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 277         emit connected();
 278
 279         if (m_scale) {
 280             if (parentWidget())
 281                 scaleResize(parentWidget()->width(), parentWidget()->height());
 282             else
 283                 scaleResize(width(), height());
 284         }
 285
 286         m_initDone = true;
 287
 288     }
 289
 290         static QSize old_frame_size = QSize();
 291     if ((y == 0 && x == 0) && (m_frame.size() != old_frame_size)) {
 292             old_frame_size = m_frame.size();
 293         kDebug(5011) << "Updating framebuffer size";
 294         if (m_scale) {
 295             //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 296             if (parentWidget())
 297                 scaleResize(parentWidget()->width(), parentWidget()->height());
 298         } else {
 299             kDebug(5011) << "Resizing: " << m_frame.width() << m_frame.height();
 300             resize(m_frame.width(), m_frame.height());
 301             //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 302             //setMinimumSize(m_frame.width(), m_frame.height());
 303         }
 304         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 305     }
 306
 307     m_repaint = true;
 308     repaint(qRound(m_x * m_horizontalFactor), qRound(m_y * m_verticalFactor), qRound(m_w * m_horizontalFactor), qRound(m_h * m_verticalFactor));
 309     m_repaint = false;
 310 }
 311
 312 void VncView::setViewOnly(bool viewOnly)
 313 {
 314     RemoteView::setViewOnly(viewOnly);
 315
 316     m_dontSendClipboard = viewOnly;
 317
 318     if (viewOnly)
 319         setCursor(Qt::ArrowCursor);
 320     else
 321         setCursor(m_dotCursorState == CursorOn ? localDotCursor() : Qt::BlankCursor);
 322 }
 323
 324 void VncView::showDotCursor(DotCursorState state)
 325 {
 326     RemoteView::showDotCursor(state);
 327
 328     setCursor(state == CursorOn ? localDotCursor() : Qt::BlankCursor);
 329 }
 330
 331 void VncView::enableScaling(bool scale)
 332 {
 333     RemoteView::enableScaling(scale);
 334
 335     if (scale) {
 336         //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 337         //setMinimumSize(1, 1);
 338         if (parentWidget())
 339             scaleResize(parentWidget()->width(), parentWidget()->height());
 340             else
 341                 scaleResize(width(), height());
 342     } else {
 343         m_verticalFactor = 1.0;
 344         m_horizontalFactor = 1.0;
 345
 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         resize(m_frame.width(), m_frame.height());
 349     }
 350 }
 351
 352 void VncView::setCut(const QString &text)
 353 {
 354     m_dontSendClipboard = true;
 355     m_clipboard->setText(text, QClipboard::Clipboard);
 356     m_clipboard->setText(text, QClipboard::Selection);
 357     m_dontSendClipboard = false;
 358 }
 359
 360 void VncView::paintEvent(QPaintEvent *event)
 361 {
 362      //kDebug(5011) << "paint event: x: " << m_x << ", y: " << m_y << ", w: " << m_w << ", h: " << m_h;
 363     if (m_frame.isNull() || m_frame.format() == QImage::Format_Invalid) {
 364         kDebug(5011) << "no valid image to paint";
 365         RemoteView::paintEvent(event);
 366         return;
 367     }
 368
 369     event->accept();
 370
 371     QPainter painter(this);
 372
 373     if (m_repaint and !force_full_repaint) {
 374 //         kDebug(5011) << "normal repaint";
 375         painter.drawImage(QRect(qRound(m_x*m_horizontalFactor), qRound(m_y*m_verticalFactor),
 376                                 qRound(m_w*m_horizontalFactor), qRound(m_h*m_verticalFactor)),
 377                           m_frame.copy(m_x, m_y, m_w, m_h).scaled(qRound(m_w*m_horizontalFactor),
 378                                                                   qRound(m_h*m_verticalFactor),
 379                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 380     } else {
 381          kDebug(5011) << "resize repaint";
 382         QRect rect = event->rect();
 383         if (!force_full_repaint and (rect.width() != width() || rect.height() != height())) {
 384              kDebug(5011) << "Partial repaint";
 385             const int sx = rect.x()/m_horizontalFactor;
 386             const int sy = rect.y()/m_verticalFactor;
 387             const int sw = rect.width()/m_horizontalFactor;
 388             const int sh = rect.height()/m_verticalFactor;
 389             painter.drawImage(rect,
 390                               m_frame.copy(sx, sy, sw, sh).scaled(rect.width(), rect.height(),
 391                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 392         } else {
 393              kDebug(5011) << "Full repaint" << width() << height() << m_frame.width() << m_frame.height();
 394             painter.drawImage(QRect(0, 0, width(), height()),
 395                               m_frame.scaled(m_frame.width() * m_horizontalFactor, m_frame.height() * m_verticalFactor,
 396                                              Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 397             force_full_repaint = false;
 398         }
 399     }
 400
 401     RemoteView::paintEvent(event);
 402 }
 403
 404 void VncView::resizeEvent(QResizeEvent *event)
 405 {
 406     RemoteView::resizeEvent(event);
 407     scaleResize(event->size().width(), event->size().height());
 408     forceFullRepaint();
 409 }
 410
 411 bool VncView::event(QEvent *event)
 412 {
 413     switch (event->type()) {
 414     case QEvent::KeyPress:
 415     case QEvent::KeyRelease:
 416 //         kDebug(5011) << "keyEvent";
 417         keyEventHandler(static_cast<QKeyEvent*>(event));
 418         return true;
 419         break;
 420     case QEvent::MouseButtonDblClick:
 421     case QEvent::MouseButtonPress:
 422     case QEvent::MouseButtonRelease:
 423     case QEvent::MouseMove:
 424 //         kDebug(5011) << "mouseEvent";
 425         mouseEventHandler(static_cast<QMouseEvent*>(event));
 426         return true;
 427         break;
 428     case QEvent::Wheel:
 429 //         kDebug(5011) << "wheelEvent";
 430         wheelEventHandler(static_cast<QWheelEvent*>(event));
 431         return true;
 432         break;
 433     case QEvent::WindowActivate: //input panel may have been closed, prevent IM from interfering with hardware keyboard
 434         setAttribute(Qt::WA_InputMethodEnabled, false);
 435         //fall through
 436     default:
 437         return RemoteView::event(event);
 438     }
 439 }
 440
 441 //call with e == 0 to flush held events
 442 void VncView::mouseEventHandler(QMouseEvent *e)
 443 {
 444         static bool tap_detected = false;
 445         static bool double_tap_detected = false;
 446         static bool tap_drag_detected = false;
 447         static QTime press_time;
 448         static QTime up_time; //used for double clicks/tap&drag, for time after first tap
 449
 450         const int TAP_PRESS_TIME = 180;
 451         const int DOUBLE_TAP_UP_TIME = 500;
 452
 453         if(!e) { //flush held taps
 454                 if(tap_detected) {
 455                         m_buttonMask |= 0x01;
 456                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 457                         m_buttonMask &= 0xfe;
 458                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 459                         tap_detected = false;
 460                 } else if(double_tap_detected and press_time.elapsed() > TAP_PRESS_TIME) { //got tap + another press -> tap & drag
 461                         m_buttonMask |= 0x01;
 462                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 463                         double_tap_detected = false;
 464                         tap_drag_detected = true;
 465                 }
 466
 467                 return;
 468         }
 469
 470         if(e->x() < 0 or e->y() < 0) { //QScrollArea tends to send invalid events sometimes...
 471                 e->ignore();
 472                 return;
 473         }
 474
 475         cursor_x = qRound(e->x()/m_horizontalFactor);
 476         cursor_y = qRound(e->y()/m_verticalFactor);
 477         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask); // plain move event
 478
 479         if(disable_tapping) { //only move cursor
 480                 e->ignore();
 481                 return;
 482         }
 483
 484         if(e->type() == QEvent::MouseButtonPress or e->type() == QEvent::MouseButtonDblClick) {
 485                 press_time.start();
 486                 if(tap_detected and up_time.elapsed() < DOUBLE_TAP_UP_TIME) {
 487                         tap_detected = false;
 488                         double_tap_detected = true;
 489
 490                         QTimer::singleShot(TAP_PRESS_TIME, this, SLOT(mouseEventHandler()));
 491                 }
 492         } else if(e->type() == QEvent::MouseButtonRelease) {
 493                 if(tap_drag_detected) {
 494                         m_buttonMask &= 0xfe;
 495                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 496                         tap_drag_detected = false;
 497                 } else if(double_tap_detected) { //double click
 498                         double_tap_detected = false;
 499
 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                         m_buttonMask |= 0x01;
 505                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 506                         m_buttonMask &= 0xfe;
 507                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 508                 } else if(press_time.elapsed() < TAP_PRESS_TIME) { //tap
 509                         up_time.start();
 510                         tap_detected = true;
 511                         QTimer::singleShot(DOUBLE_TAP_UP_TIME, this, SLOT(mouseEventHandler()));
 512                 }
 513
 514         }
 515
 516 /* for reference:
 517     if (e->type() != QEvent::MouseMove) {
 518         if ((e->type() == QEvent::MouseButtonPress)) {
 519             if (e->button() & Qt::LeftButton)
 520                 m_buttonMask |= 0x01;
 521             if (e->button() & Qt::MidButton)
 522                 m_buttonMask |= 0x02;
 523             if (e->button() & Qt::RightButton)
 524                 m_buttonMask |= 0x04;
 525         } else if (e->type() == QEvent::MouseButtonRelease) {
 526             if (e->button() & Qt::LeftButton)
 527                 m_buttonMask &= 0xfe;
 528             if (e->button() & Qt::MidButton)
 529                 m_buttonMask &= 0xfd;
 530             if (e->button() & Qt::RightButton)
 531                 m_buttonMask &= 0xfb;
 532         */
 533 }
 534
 535 void VncView::wheelEventHandler(QWheelEvent *event)
 536 {
 537     int eb = 0;
 538     if (event->delta() < 0)
 539         eb |= 0x10;
 540     else
 541         eb |= 0x8;
 542
 543     const int x = qRound(event->x() / m_horizontalFactor);
 544     const int y = qRound(event->y() / m_verticalFactor);
 545
 546         kDebug(5011) << "Wheelevent";
 547     vncThread.mouseEvent(x, y, eb | m_buttonMask);
 548     vncThread.mouseEvent(x, y, m_buttonMask);
 549 }
 550
 551 void VncView::keyEventHandler(QKeyEvent *e)
 552 {
 553     // strip away autorepeating KeyRelease; see bug #206598
 554     if (e->isAutoRepeat() && (e->type() == QEvent::KeyRelease)) {
 555         return;
 556     }
 557
 558 // parts of this code are based on http://italc.sourcearchive.com/documentation/1.0.9.1/vncview_8cpp-source.html
 559     rfbKeySym k = e->nativeVirtualKey();
 560
 561     // we do not handle Key_Backtab separately as the Shift-modifier
 562     // is already enabled
 563     if (e->key() == Qt::Key_Backtab) {
 564         k = XK_Tab;
 565     }
 566
 567     const bool pressed = (e->type() == QEvent::KeyPress);
 568
 569     // handle modifiers
 570     if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L) {
 571         if (pressed) {
 572             m_mods[k] = true;
 573         } else if (m_mods.contains(k)) {
 574             m_mods.remove(k);
 575         } else {
 576             unpressModifiers();
 577         }
 578     }
 579
 580
 581         int current_zoom = -1;
 582         if(e->key() == Qt::Key_F8)
 583                 current_zoom = left_zoom;
 584         else if(e->key() == Qt::Key_F7)
 585                 current_zoom = right_zoom;
 586         else if (k) {
 587         //      kDebug(5011) << "got '" << e->text() << "'.";
 588                 vncThread.keyEvent(k, pressed);
 589         } else {
 590                 kDebug(5011) << "nativeVirtualKey() for '" << e->text() << "' failed.";
 591                 return;
 592         }
 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) { //middle click
 611                 if(pressed)
 612                         m_buttonMask |= 0x02;
 613                 else
 614                         m_buttonMask &= 0xfd;
 615                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 616         } else if(current_zoom == 3 and pressed) { //wheel up
 617                 int eb = 0x8;
 618                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 619                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 620         } else if(current_zoom == 4 and pressed) { //wheel down
 621                 int eb = 0x10;
 622                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 623                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 624         } else if(current_zoom == 5) { //page up
 625                 vncThread.keyEvent(0xff55, pressed);
 626         } else if(current_zoom == 6) { //page down
 627                 vncThread.keyEvent(0xff56, pressed);
 628         }
 629 }
 630
 631 void VncView::unpressModifiers()
 632 {
 633     const QList<unsigned int> keys = m_mods.keys();
 634     QList<unsigned int>::const_iterator it = keys.constBegin();
 635     while (it != keys.end()) {
 636         vncThread.keyEvent(*it, false);
 637         it++;
 638     }
 639     m_mods.clear();
 640 }
 641
 642 void VncView::clipboardSelectionChanged()
 643 {
 644     kDebug(5011);
 645
 646     if (m_status != Connected)
 647         return;
 648
 649     if (m_clipboard->ownsSelection() || m_dontSendClipboard)
 650         return;
 651
 652     const QString text = m_clipboard->text(QClipboard::Selection);
 653
 654     vncThread.clientCut(text);
 655 }
 656
 657 void VncView::clipboardDataChanged()
 658 {
 659     kDebug(5011);
 660
 661     if (m_status != Connected)
 662         return;
 663
 664     if (m_clipboard->ownsClipboard() || m_dontSendClipboard)
 665         return;
 666
 667     const QString text = m_clipboard->text(QClipboard::Clipboard);
 668
 669     vncThread.clientCut(text);
 670 }
 671
 672 //fake key events
 673 void VncView::sendKey(Qt::Key key)
 674 {
 675         int k = 0; //X11 keysym
 676         switch(key) {
 677         case Qt::Key_Escape:
 678                 k = 0xff1b;
 679                 break;
 680         case Qt::Key_Tab:
 681                 k = 0xff09;
 682                 break;
 683         case Qt::Key_PageUp:
 684                 k = 0xff55;
 685                 break;
 686         case Qt::Key_PageDown:
 687                 k = 0xff56;
 688                 break;
 689         case Qt::Key_Return:
 690                 k = 0xff0d;
 691                 break;
 692         case Qt::Key_Meta: //TODO: test this.
 693                 k = XK_Super_L;
 694                 break;
 695         case Qt::Key_Alt:
 696                 k = XK_Alt_L;
 697                 break;
 698         default:
 699                 kDebug(5011) << "sendKey(): Unhandled Qt::Key value " << key;
 700                 return;
 701         }
 702
 703         if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L || k == XK_Super_L) {
 704                 if (m_mods.contains(k)) { //release
 705                         m_mods.remove(k);
 706                         vncThread.keyEvent(k, false);
 707                 } else { //press
 708                         m_mods[k] = true;
 709                         vncThread.keyEvent(k, true);
 710                 }
 711         } else { //normal key
 712                 vncThread.keyEvent(k, true);
 713                 vncThread.keyEvent(k, false);
 714         }
 715 }
 716
 717 void VncView::reloadSettings()
 718 {
 719         QSettings settings;
 720         left_zoom = settings.value("left_zoom", 0).toInt();
 721         right_zoom = settings.value("right_zoom", 1).toInt();
 722         disable_tapping = settings.value("disable_tapping", false).toBool();
 723 }
 724
 725 //convert commitString into keyevents
 726 void VncView::inputMethodEvent(QInputMethodEvent *event)
 727 {
 728         //TODO handle replacements
 729         //TODO convert utf8 to X11 keysyms myself, should work with umlauts, kana...
 730         //NOTE for the return key to work Qt needs to enable multiline input, which only works for Q(Plain)TextEdit
 731
 732         //kDebug(5011) << event->commitString() << "|" << event->preeditString() << "|" << event->replacementLength() << "|" << event->replacementStart();
 733         QString letters = event->commitString();
 734         for(int i = 0; i < letters.length(); i++) {
 735                 char k = letters.at(i).toLatin1(); //works with all 'normal' keys, not umlauts.
 736                 if(!k) {
 737                         kDebug(5011) << "unhandled key";
 738                         continue;
 739                 }
 740                 kDebug(5011) << "key: " << int(k);
 741                 vncThread.keyEvent(k, true);
 742                 vncThread.keyEvent(k, false);
 743         }
 744 }
 745
 746
 747 #include "moc_vncview.cpp"