critical(parent, caption, message)
#include <QApplication>
+#include <QBitmap>
+#include <QCheckBox>
+#include <QDialog>
#include <QImage>
+#include <QHBoxLayout>
+#include <QVBoxLayout>
#include <QPainter>
#include <QMouseEvent>
+#include <QPushButton>
#include <QEvent>
#include <QSettings>
#include <QTime>
#include <QTimer>
+
// Definition of key modifier mask constants
#define KMOD_Alt_R 0x01
#define KMOD_Alt_L 0x02
#define KMOD_Control_L 0x08
#define KMOD_Shift_L 0x10
-VncView::VncView(QWidget *parent, const KUrl &url, RemoteView::Quality quality)
+//local cursor width/height in px, should be an odd number
+const int CURSOR_SIZE = 7;
+
+const int TAP_PRESS_TIME = 180;
+const int DOUBLE_TAP_UP_TIME = 500;
+
+
+VncView::VncView(QWidget *parent, const KUrl &url, RemoteView::Quality quality, int listen_port)
: RemoteView(parent),
m_initDone(false),
m_buttonMask(0),
m_verticalFactor(1.0),
m_forceLocalCursor(false),
force_full_repaint(false),
- quality(quality)
+ quality(quality),
+ listen_port(listen_port)
{
m_url = url;
m_host = url.host();
m_port = url.port();
+ //BlockingQueuedConnection can cause deadlocks when exiting, handled in startQuitting()
connect(&vncThread, SIGNAL(imageUpdated(int, int, int, int)), this, SLOT(updateImage(int, int, int, int)), Qt::BlockingQueuedConnection);
connect(&vncThread, SIGNAL(gotCut(const QString&)), this, SLOT(setCut(const QString&)), Qt::BlockingQueuedConnection);
connect(&vncThread, SIGNAL(passwordRequest()), this, SLOT(requestPassword()), Qt::BlockingQueuedConnection);
connect(m_clipboard, SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
reloadSettings();
-
}
VncView::~VncView()
void VncView::forceFullRepaint()
{
- kDebug(5011) << "forceFullRepaint()";
force_full_repaint = true;
repaint();
}
event->type() == QEvent::MouseMove)
return true;
}
- if(event->type() == 200)
- kDebug(5011) << "eventFilter: 200";
return RemoteView::eventFilter(obj, event);
}
return size();
}
-void VncView::scaleResize(int w, int h)
-{
- RemoteView::scaleResize(w, h);
-
- kDebug(5011) << "scaleResize(): " <<w << h;
- if (m_scale) {
- m_verticalFactor = (qreal) h / m_frame.height();
- m_horizontalFactor = (qreal) w / m_frame.width();
-
- m_verticalFactor = m_horizontalFactor = qMin(m_verticalFactor, m_horizontalFactor);
-
- const qreal newW = m_frame.width() * m_horizontalFactor;
- const qreal newH = m_frame.height() * m_verticalFactor;
- /*
- setMaximumSize(newW, newH); //This is a hack to force Qt to center the view in the scroll area
- //also causes the widget's size to flicker
- */
- resize(newW, newH);
- }
-}
-
-
void VncView::startQuitting()
{
kDebug(5011) << "about to quit";
- const bool connected = status() == RemoteView::Connected;
+ //const bool connected = status() == RemoteView::Connected;
setStatus(Disconnecting);
m_quitFlag = true;
- if (connected) {
- vncThread.stop();
- }
-
- vncThread.quit();
-
- const bool quitSuccess = vncThread.wait(500);
-
- kDebug(5011) << "startQuitting(): Quit VNC thread success:" << quitSuccess;
-
+ //if(connected) //remove if things work without it
+ vncThread.stop();
+
+ const bool quitSuccess = vncThread.wait(700);
+ if(!quitSuccess) {
+ //happens when vncThread wants to call a slot via BlockingQueuedConnection,
+ //needs an event loop in this thread so execution continues after 'emit'
+ QEventLoop loop;
+ if(!loop.processEvents())
+ kDebug(5011) << "BUG: deadlocked, but no events to deliver?";
+ vncThread.wait(700);
+ }
setStatus(Disconnected);
}
{
vncThread.setHost(m_host);
vncThread.setPort(m_port);
-
+ vncThread.setListenPort(listen_port); //if port is != 0, thread will listen for connections
vncThread.setQuality(quality);
// set local cursor on by default because low quality mostly means slow internet connection
return;
}
- bool ok;
- QString password = QInputDialog::getText(this, //krazy:exclude=qclasses
- tr("Password required"),
- tr("Please enter the password for the remote desktop:"),
- QLineEdit::Password, QString(), &ok);
- m_firstPasswordTry = false;
- if (ok) {
- vncThread.setPassword(password);
- } else {
- startQuitting();
- }
+ QSettings settings;
+ settings.beginGroup("hosts");
+ QString password = settings.value(QString("%1/password").arg(m_host), "").toString();
+ //check for saved password
+ if(m_firstPasswordTry and !password.isEmpty()) {
+ kDebug(5011) << "Trying saved password";
+ m_firstPasswordTry = false;
+ vncThread.setPassword(password);
+ return;
+ }
+ m_firstPasswordTry = false;
+
+ //build dialog
+ QDialog dialog(this);
+ dialog.setWindowTitle(tr("Password required"));
+
+ QLineEdit passwordbox;
+ passwordbox.setEchoMode(QLineEdit::Password);
+ passwordbox.setText(password);
+ QCheckBox save_password(tr("Save Password"));
+ save_password.setChecked(!password.isEmpty()); //offer to overwrite saved password
+ QPushButton ok_button(tr("Done"));
+ ok_button.setMaximumWidth(100);
+ connect(&ok_button, SIGNAL(clicked()),
+ &dialog, SLOT(accept()));
+
+ QHBoxLayout layout1;
+ QVBoxLayout layout2;
+ layout2.addWidget(&passwordbox);
+ layout2.addWidget(&save_password);
+ layout1.addLayout(&layout2);
+ layout1.addWidget(&ok_button);
+ dialog.setLayout(&layout1);
+
+ if(dialog.exec()) { //dialog accepted
+ password = passwordbox.text();
+
+ if(save_password.isChecked()) {
+ kDebug(5011) << "Saving password for host '" << m_host << "'";
+
+ settings.setValue(QString("%1/password").arg(m_host), password);
+ settings.sync();
+ }
+
+ vncThread.setPassword(password);
+ } else {
+ startQuitting();
+ }
}
void VncView::outputErrorMessage(const QString &message)
void VncView::updateImage(int x, int y, int w, int h)
{
-// kDebug(5011) << "got update" << width() << height();
+ if(!QApplication::focusWidget()) { //no focus, we're probably minimized
+ return;
+ }
+
+ //kDebug(5011) << "got update" << width() << height();
m_x = x;
m_y = y;
if (m_horizontalFactor != 1.0 || m_verticalFactor != 1.0) {
// If the view is scaled, grow the update rectangle to avoid artifacts
- m_x-=1;
- m_y-=1;
- m_w+=2;
- m_h+=2;
+ int x_extrapixels = 1.0/m_horizontalFactor + 1;
+ int y_extrapixels = 1.0/m_verticalFactor + 1;
+
+ m_x-=x_extrapixels;
+ m_y-=y_extrapixels;
+ m_w+=2*x_extrapixels;
+ m_h+=2*y_extrapixels;
}
m_frame = vncThread.image();
// emit framebufferSizeChanged(m_frame.width(), m_frame.height());
emit connected();
- if (m_scale) {
- if (parentWidget())
- scaleResize(parentWidget()->width(), parentWidget()->height());
- else
- scaleResize(width(), height());
- }
+ resize(width(), height());
m_initDone = true;
if ((y == 0 && x == 0) && (m_frame.size() != old_frame_size)) {
old_frame_size = m_frame.size();
kDebug(5011) << "Updating framebuffer size";
- if (m_scale) {
- //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
- if (parentWidget())
- scaleResize(parentWidget()->width(), parentWidget()->height());
- } else {
- kDebug(5011) << "Resizing: " << m_frame.width() << m_frame.height();
- resize(m_frame.width(), m_frame.height());
- //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
- //setMinimumSize(m_frame.width(), m_frame.height());
- }
+ setZoomLevel();
emit framebufferSizeChanged(m_frame.width(), m_frame.height());
}
setCursor(state == CursorOn ? localDotCursor() : Qt::BlankCursor);
}
-void VncView::enableScaling(bool scale)
+//level should be in [0, 100]
+void VncView::setZoomLevel(int level)
{
- RemoteView::enableScaling(scale);
+ Q_ASSERT(parentWidget() != 0);
- if (scale) {
- //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
- //setMinimumSize(1, 1);
- if (parentWidget())
- scaleResize(parentWidget()->width(), parentWidget()->height());
- else
- scaleResize(width(), height());
- } else {
- m_verticalFactor = 1.0;
- m_horizontalFactor = 1.0;
+ if(level == -1) { //handle resize
+ resize(m_frame.width()*m_horizontalFactor, m_frame.height()*m_verticalFactor);
+ return;
+ }
- //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
- //setMinimumSize(m_frame.width(), m_frame.height());
- resize(m_frame.width(), m_frame.height());
- }
+ double magnification;
+ if(level == 100) {
+ magnification = 2.0;
+ } else if(level >= 90) {
+ magnification = 1.0;
+ } else {
+ const double min_horiz_magnification = double(parentWidget()->width())/m_frame.width();
+ const double min_vert_magnification = double(parentWidget()->height())/m_frame.height();
+ const double fit_screen_magnification = qMin(min_horiz_magnification, min_vert_magnification);
+
+ //level=90 => magnification=1.0, level=0 => magnification=fit_screen_magnification
+ magnification = (level)/90.0*(1.0 - fit_screen_magnification) + fit_screen_magnification;
+ }
+
+ if(magnification < 0 //remote display smaller than local?
+ or magnification != magnification) //nan
+ magnification = 1.0;
+
+ m_verticalFactor = m_horizontalFactor = magnification;
+ resize(m_frame.width()*magnification, m_frame.height()*magnification);
}
void VncView::setCut(const QString &text)
QPainter painter(this);
+ Qt::TransformationMode transformation_mode = Qt::SmoothTransformation;
+ if( m_horizontalFactor >= 1.0 )
+ transformation_mode = Qt::FastTransformation;
+
if (m_repaint and !force_full_repaint) {
// kDebug(5011) << "normal repaint";
painter.drawImage(QRect(qRound(m_x*m_horizontalFactor), qRound(m_y*m_verticalFactor),
qRound(m_w*m_horizontalFactor), qRound(m_h*m_verticalFactor)),
m_frame.copy(m_x, m_y, m_w, m_h).scaled(qRound(m_w*m_horizontalFactor),
qRound(m_h*m_verticalFactor),
- Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+ Qt::IgnoreAspectRatio, transformation_mode));
} else {
- kDebug(5011) << "resize repaint";
+ //kDebug(5011) << "resize repaint";
QRect rect = event->rect();
if (!force_full_repaint and (rect.width() != width() || rect.height() != height())) {
- kDebug(5011) << "Partial repaint";
+ // kDebug(5011) << "Partial repaint";
const int sx = rect.x()/m_horizontalFactor;
const int sy = rect.y()/m_verticalFactor;
const int sw = rect.width()/m_horizontalFactor;
const int sh = rect.height()/m_verticalFactor;
painter.drawImage(rect,
m_frame.copy(sx, sy, sw, sh).scaled(rect.width(), rect.height(),
- Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+ Qt::IgnoreAspectRatio, transformation_mode));
} else {
kDebug(5011) << "Full repaint" << width() << height() << m_frame.width() << m_frame.height();
painter.drawImage(QRect(0, 0, width(), height()),
m_frame.scaled(m_frame.width() * m_horizontalFactor, m_frame.height() * m_verticalFactor,
- Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
- force_full_repaint = false;
+ Qt::IgnoreAspectRatio, transformation_mode));
+ force_full_repaint = false;
}
}
+ //draw local cursor ourselves, normal mouse pointer doesn't deal with scrolling
+ if((m_dotCursorState == CursorOn) || m_forceLocalCursor) {
+#if QT_VERSION >= 0x040500
+ painter.setCompositionMode(QPainter::RasterOp_SourceXorDestination);
+#endif
+ //rectangle size includes 1px pen width
+ painter.drawRect(cursor_x*m_horizontalFactor - CURSOR_SIZE/2, cursor_y*m_verticalFactor - CURSOR_SIZE/2, CURSOR_SIZE-1, CURSOR_SIZE-1);
+ }
+
RemoteView::paintEvent(event);
}
void VncView::resizeEvent(QResizeEvent *event)
{
RemoteView::resizeEvent(event);
- scaleResize(event->size().width(), event->size().height());
- forceFullRepaint();
+ update();
}
bool VncView::event(QEvent *event)
static QTime press_time;
static QTime up_time; //used for double clicks/tap&drag, for time after first tap
- const int TAP_PRESS_TIME = 180;
- const int DOUBLE_TAP_UP_TIME = 500;
-
if(!e) { //flush held taps
if(tap_detected) {
m_buttonMask |= 0x01;
cursor_y = qRound(e->y()/m_verticalFactor);
vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask); // plain move event
- if(disable_tapping) { //only move cursor
- e->ignore();
- return;
- }
+ if(!disable_tapping and e->button() == Qt::LeftButton) { //implement touchpad-like input for left button
+ if(e->type() == QEvent::MouseButtonPress or e->type() == QEvent::MouseButtonDblClick) {
+ press_time.start();
+ if(tap_detected and up_time.elapsed() < DOUBLE_TAP_UP_TIME) {
+ tap_detected = false;
+ double_tap_detected = true;
+
+ QTimer::singleShot(TAP_PRESS_TIME, this, SLOT(mouseEventHandler()));
+ }
+ } else if(e->type() == QEvent::MouseButtonRelease) {
+ if(tap_drag_detected) {
+ m_buttonMask &= 0xfe;
+ vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
+ tap_drag_detected = false;
+ } else if(double_tap_detected) { //double click
+ double_tap_detected = false;
+
+ m_buttonMask |= 0x01;
+ vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
+ m_buttonMask &= 0xfe;
+ vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
+ m_buttonMask |= 0x01;
+ vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
+ m_buttonMask &= 0xfe;
+ vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
+ } else if(press_time.elapsed() < TAP_PRESS_TIME) { //tap
+ up_time.start();
+ tap_detected = true;
+ QTimer::singleShot(DOUBLE_TAP_UP_TIME, this, SLOT(mouseEventHandler()));
+ }
- if(e->type() == QEvent::MouseButtonPress or e->type() == QEvent::MouseButtonDblClick) {
- press_time.start();
- if(tap_detected and up_time.elapsed() < DOUBLE_TAP_UP_TIME) {
- tap_detected = false;
- double_tap_detected = true;
-
- QTimer::singleShot(TAP_PRESS_TIME, this, SLOT(mouseEventHandler()));
}
- } else if(e->type() == QEvent::MouseButtonRelease) {
- if(tap_drag_detected) {
- m_buttonMask &= 0xfe;
- vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
- tap_drag_detected = false;
- } else if(double_tap_detected) { //double click
- double_tap_detected = false;
-
- m_buttonMask |= 0x01;
- vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
- m_buttonMask &= 0xfe;
- vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
- m_buttonMask |= 0x01;
- vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
- m_buttonMask &= 0xfe;
- vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
- } else if(press_time.elapsed() < TAP_PRESS_TIME) { //tap
- up_time.start();
- tap_detected = true;
- QTimer::singleShot(DOUBLE_TAP_UP_TIME, this, SLOT(mouseEventHandler()));
+ } else { //middle or right button, send directly
+ if ((e->type() == QEvent::MouseButtonPress)) {
+ if (e->button() & Qt::MidButton)
+ m_buttonMask |= 0x02;
+ if (e->button() & Qt::RightButton)
+ m_buttonMask |= 0x04;
+ } else if (e->type() == QEvent::MouseButtonRelease) {
+ if (e->button() & Qt::MidButton)
+ m_buttonMask &= 0xfd;
+ if (e->button() & Qt::RightButton)
+ m_buttonMask &= 0xfb;
}
-
+ vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
}
-/* for reference:
- if (e->type() != QEvent::MouseMove) {
- if ((e->type() == QEvent::MouseButtonPress)) {
- if (e->button() & Qt::LeftButton)
- m_buttonMask |= 0x01;
- if (e->button() & Qt::MidButton)
- m_buttonMask |= 0x02;
- if (e->button() & Qt::RightButton)
- m_buttonMask |= 0x04;
- } else if (e->type() == QEvent::MouseButtonRelease) {
- if (e->button() & Qt::LeftButton)
- m_buttonMask &= 0xfe;
- if (e->button() & Qt::MidButton)
- m_buttonMask &= 0xfd;
- if (e->button() & Qt::RightButton)
- m_buttonMask &= 0xfb;
- */
+ //prevent local cursor artifacts
+ static int old_cursor_x = cursor_x;
+ static int old_cursor_y = cursor_y;
+ if(((m_dotCursorState == CursorOn) || m_forceLocalCursor)
+ and (cursor_x != old_cursor_x or cursor_y != old_cursor_y)) {
+ //clear last position
+ repaint(old_cursor_x*m_horizontalFactor - CURSOR_SIZE/2, old_cursor_y*m_verticalFactor - CURSOR_SIZE/2, CURSOR_SIZE, CURSOR_SIZE);
+ //and refresh new one
+ repaint(cursor_x*m_horizontalFactor - CURSOR_SIZE/2, cursor_y*m_verticalFactor - CURSOR_SIZE/2, CURSOR_SIZE, CURSOR_SIZE);
+
+ old_cursor_x = cursor_x; old_cursor_y = cursor_y;
+ }
}
void VncView::wheelEventHandler(QWheelEvent *event)
const int x = qRound(event->x() / m_horizontalFactor);
const int y = qRound(event->y() / m_verticalFactor);
- kDebug(5011) << "Wheelevent";
vncThread.mouseEvent(x, y, eb | m_buttonMask);
vncThread.mouseEvent(x, y, m_buttonMask);
}
const bool pressed = (e->type() == QEvent::KeyPress);
+#ifdef Q_WS_MAEMO_5
+ //don't send ISO_Level3_Shift (would break things like Win+0-9)
+ //also enable IM so symbol key works
+ if(k == 0xfe03) {
+ setAttribute(Qt::WA_InputMethodEnabled, pressed);
+ e->ignore();
+ return;
+ }
+#endif
+
// handle modifiers
if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L) {
if (pressed) {
void VncView::clipboardSelectionChanged()
{
- kDebug(5011);
-
if (m_status != Connected)
return;
void VncView::clipboardDataChanged()
{
- kDebug(5011);
-
if (m_status != Connected)
return;
//fake key events
void VncView::sendKey(Qt::Key key)
{
- int k = 0; //X11 keysym
+ //convert Qt::Key into x11 keysym
+ int k = 0;
switch(key) {
case Qt::Key_Escape:
k = 0xff1b;
case Qt::Key_Return:
k = 0xff0d;
break;
- case Qt::Key_Meta: //TODO: test this.
+ case Qt::Key_Insert:
+ k = 0xff63;
+ break;
+ case Qt::Key_Delete:
+ k = 0xffff;
+ break;
+ case Qt::Key_Home:
+ k = 0xff50;
+ break;
+ case Qt::Key_End:
+ k = 0xff57;
+ break;
+ case Qt::Key_Backspace:
+ k = 0xff08;
+ break;
+ case Qt::Key_F1:
+ case Qt::Key_F2:
+ case Qt::Key_F3:
+ case Qt::Key_F4:
+ case Qt::Key_F5:
+ case Qt::Key_F6:
+ case Qt::Key_F7:
+ case Qt::Key_F8:
+ case Qt::Key_F9:
+ case Qt::Key_F10:
+ case Qt::Key_F11:
+ case Qt::Key_F12:
+ k = 0xffbe + int(key - Qt::Key_F1);
+ break;
+ case Qt::Key_Pause:
+ k = 0xff13;
+ break;
+ case Qt::Key_Print:
+ k = 0xff61;
+ break;
+ case Qt::Key_Menu:
+ k = 0xff67;
+ break;
+ case Qt::Key_Meta:
+ case Qt::MetaModifier:
k = XK_Super_L;
break;
case Qt::Key_Alt:
+ case Qt::AltModifier:
k = XK_Alt_L;
break;
+ case Qt::Key_Control:
+ case Qt::ControlModifier:
+ k = XK_Control_L;
+ break;
default:
kDebug(5011) << "sendKey(): Unhandled Qt::Key value " << key;
return;
}
}
+void VncView::sendKeySequence(QKeySequence keys)
+{
+ Q_ASSERT(keys.count() <= 1); //we can only handle a single combination
+
+ //to get at individual key presses, we split 'keys' into its components
+ QList<int> key_list;
+ for(int i = 0; ; i++) {
+ QString k = keys.toString().section('+', i, i);
+ if(k.isEmpty())
+ break;
+ //kDebug(5011) << "found key: " << k;
+ if(k == "Alt") {
+ key_list.append(Qt::Key_Alt);
+ } else if(k == "Ctrl") {
+ key_list.append(Qt::Key_Control);
+ } else if(k == "Meta") {
+ key_list.append(Qt::Key_Meta);
+ } else {
+ key_list.append(QKeySequence(k)[0]);
+ }
+ }
+
+ for(int i = 0; i < key_list.count(); i++)
+ sendKey(Qt::Key(key_list.at(i)));
+
+ //release modifiers (everything before final key)
+ for(int i = key_list.count()-2; i >= 0; i--)
+ sendKey(Qt::Key(key_list.at(i)));
+}
+
void VncView::reloadSettings()
{
QSettings settings;
left_zoom = settings.value("left_zoom", 0).toInt();
right_zoom = settings.value("right_zoom", 1).toInt();
disable_tapping = settings.value("disable_tapping", false).toBool();
+
+ bool always_show_local_cursor = settings.value("always_show_local_cursor", false).toBool();
+ if(always_show_local_cursor)
+ showDotCursor(CursorOn);
+
+ enableScaling(true);
}
//convert commitString into keyevents
void VncView::inputMethodEvent(QInputMethodEvent *event)
{
//TODO handle replacements
- //TODO convert utf8 to X11 keysyms myself, should work with umlauts, kana...
//NOTE for the return key to work Qt needs to enable multiline input, which only works for Q(Plain)TextEdit
//kDebug(5011) << event->commitString() << "|" << event->preeditString() << "|" << event->replacementLength() << "|" << event->replacementStart();
kDebug(5011) << "unhandled key";
continue;
}
- kDebug(5011) << "key: " << int(k);
vncThread.keyEvent(k, true);
vncThread.keyEvent(k, false);
}
projects / presencevnc / blobdiff