+/*
+ Presence VNC
+ Copyright (C) 2010 Christian Pulvermacher
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include "connectdialog.h"
+#include "keymenu.h"
#include "mainwindow.h"
+#include "preferences.h"
+#include "scrollarea.h"
#include "vncview.h"
+#ifdef Q_WS_MAEMO_5
#include <QtMaemo5>
#include <QX11Info>
+#include <QDBusConnection>
+
+#include <mce/mode-names.h>
+#include <mce/dbus-names.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
+#endif
+
+
+MainWindow::MainWindow(QString url, int quality, int listen_port, bool view_only):
+ QMainWindow(0),
+ vnc_view(0),
+ scroll_area(new ScrollArea(this)),
+ input_toolbuttons(new QActionGroup(this)),
+ key_menu(0)
+{
+ setWindowTitle("Presence VNC");
+#ifdef Q_WS_MAEMO_5
+ setContextMenuPolicy(Qt::NoContextMenu);
+ setAttribute(Qt::WA_Maemo5StackedWindow);
+#endif
+
+ migrateConfiguration();
+
+ //set up toolbar
+ toolbar = new QToolBar(0);
+ key_menu_button = input_toolbuttons->addAction(toolbar->addAction(QChar(0x2026), this, SLOT(showKeyMenu()))); //"..." button
+ key_menu_button->setCheckable(true); //used to indicate wether a modifier key is still pressed
+ input_toolbuttons->addAction(toolbar->addAction(tr("Tab"), this, SLOT(sendTab())));
+ input_toolbuttons->addAction(toolbar->addAction(tr("Esc"), this, SLOT(sendEsc())));
+ input_toolbuttons->addAction(toolbar->addAction(tr("PgUp"), this, SLOT(sendPgUp())));
+ input_toolbuttons->addAction(toolbar->addAction(tr("PgDn"), this, SLOT(sendPgDn())));
+#ifdef Q_WS_MAEMO_5
+ input_toolbuttons->addAction(toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/chat_enter.png"), "", this, SLOT(sendReturn())));
+ input_toolbuttons->addAction(toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/control_keyboard.png"), "", this, SLOT(showInputPanel())));
+#endif
+
+ QSettings settings;
+ zoom_slider = new QSlider(Qt::Horizontal, 0);
+ zoom_slider->setRange(0, 100);
+ connect(zoom_slider, SIGNAL(valueChanged(int)),
+ this, SLOT(setZoomLevel(int)));
+ connect(zoom_slider, SIGNAL(sliderReleased()),
+ this, SLOT(zoomSliderReleased()));
+ zoom_slider->setValue(settings.value("zoomlevel", 95).toInt());
+ toolbar->addWidget(zoom_slider);
+
+#ifdef Q_WS_MAEMO_5
+ toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"), "", this, SLOT(toggleFullscreen()));
+#else
+ toolbar->addAction(tr("Toggle Fullscreen"), this, SLOT(toggleFullscreen()));
+#endif
+ addToolBar(toolbar);
+ toolbar->setVisible(settings.value("show_toolbar", true).toBool());
+ toolbar->setEnabled(false);
+
+ //set up menu
+ QAction *connect_action = new QAction(tr("Connect"), this);
+ disconnect_action = new QAction(tr("Disconnect"), this);
+ show_toolbar = new QAction(tr("Show toolbar"), this);
+ show_toolbar->setCheckable(true);
+ show_toolbar->setChecked(settings.value("show_toolbar", true).toBool());
+ QAction *pref_action = new QAction(tr("Preferences"), this);
+ QAction *about_action = new QAction(tr("About"), this);
-#include <iostream>
-
-MainWindow::MainWindow(QString url, int quality):
- QMainWindow(0),
- vnc_view(0),
- scroll_area(new QScrollArea(0))
-{
- setWindowTitle("Presence VNC");
-// swipe_start = QPoint(0,0);
- setAttribute(Qt::WA_Maemo5StackedWindow);
-
- //set up toolbar
- toolbar = new QToolBar(0);
- toolbar->addAction("Mod"); //TODO
- toolbar->addAction("Tab", this, SLOT(sendTab()));
- toolbar->addAction("Esc", this, SLOT(sendEsc()));
- toolbar->addAction("PgUp", this, SLOT(sendPgUp()));
- toolbar->addAction("PgDn", this, SLOT(sendPgDn()));
- toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"), "", this, SLOT(toggleFullscreen()));
- addToolBar(toolbar);
-
- //set up menu
- QMenuBar *menu = new QMenuBar(this);
- QAction *connect_action = new QAction("Connect", this);
- disconnect_action = new QAction("Disconnect", this);
- menu->addAction(connect_action);
- menu->addAction(disconnect_action);
- scaling = new QAction("Rescale Remote Screen", this);
- scaling->setCheckable(true);
- scaling->setChecked(true);
- menu->addAction(scaling);
- QAction *show_toolbar = new QAction("Show Toolbar", this);
- show_toolbar->setCheckable(true);
- show_toolbar->setChecked(true);
- menu->addAction(show_toolbar);
- QAction *about_action = new QAction("About", this);
- menu->addAction(about_action);
-
- //menu->setAttribute(Qt::WA_Maemo5StackedWindow);
- //menu->hide();
-
- connect(about_action, SIGNAL(triggered()),
- this, SLOT(about()));
- connect(connect_action, SIGNAL(triggered()),
- this, SLOT(connectDialog()));
- connect(disconnect_action, SIGNAL(triggered()),
- this, SLOT(disconnectFromHost()));
- connect(show_toolbar, SIGNAL(toggled(bool)),
- toolbar, SLOT(setVisible(bool)));
- connect(show_toolbar, SIGNAL(toggled(bool)),
- this, SLOT(forceResizeDelayed()));
-
- setCentralWidget(scroll_area);
-
- grabZoomKeys(true);
- setAttribute(Qt::WA_Maemo5AutoOrientation, true);
- //setAttribute(Qt::WA_Maemo5PortraitOrientation, true);
-
- connect(QApplication::desktop(), SIGNAL(resized(int)),
- this, SLOT(forceResize()));
-
- if(url.isNull()) {
- disconnect_action->setEnabled(false);
- toolbar->setEnabled(false);
- connectDialog();
- } else {
- vnc_view = new VncView(0, url, RemoteView::Quality(quality));
- connect(scaling, SIGNAL(toggled(bool)),
- vnc_view, SLOT(enableScaling(bool)));
- connect(scaling, SIGNAL(toggled(bool)),
- scroll_area, SLOT(setWidgetResizable(bool)));
- connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
- this, SLOT(statusChanged(RemoteView::RemoteStatus)));
- scroll_area->setWidget(vnc_view);
- vnc_view->start();
- }
+#ifdef Q_WS_MAEMO_5
+ menuBar()->addAction(connect_action);
+ menuBar()->addAction(disconnect_action);
+ menuBar()->addAction(show_toolbar);
+ menuBar()->addAction(pref_action);
+ menuBar()->addAction(about_action);
+#else
+ QMenu* session_menu = menuBar()->addMenu(tr("&Session"));
+ session_menu->addAction(connect_action);
+ session_menu->addAction(disconnect_action);
+ session_menu->addSeparator();
+ session_menu->addAction(pref_action);
+ session_menu->addSeparator();
+ session_menu->addAction(tr("&Quit"), this, SLOT(close()));
+
+ QMenu* view_menu = menuBar()->addMenu(tr("&View"));
+ view_menu->addAction(show_toolbar);
+
+ QMenu* help_menu = menuBar()->addMenu(tr("&Help"));
+ help_menu->addAction(about_action);
+#endif
+
+ connect(about_action, SIGNAL(triggered()),
+ this, SLOT(about()));
+ connect(pref_action, SIGNAL(triggered()),
+ this, SLOT(showPreferences()));
+ connect(connect_action, SIGNAL(triggered()),
+ this, SLOT(showConnectDialog()));
+ connect(disconnect_action, SIGNAL(triggered()),
+ this, SLOT(disconnectFromHost()));
+ connect(show_toolbar, SIGNAL(toggled(bool)),
+ toolbar, SLOT(setVisible(bool)));
+ connect(show_toolbar, SIGNAL(toggled(bool)),
+ this, SLOT(updateScreenSpaceDelayed()));
+#ifdef Q_WS_MAEMO_5
+ QDBusConnection::systemBus().connect("", MCE_SIGNAL_PATH, MCE_SIGNAL_IF, MCE_DISPLAY_SIG,
+ this, SLOT(displayStateChanged(QString)));
+#endif
+
+ setCentralWidget(scroll_area);
+
+ connect(scroll_area, SIGNAL(fullscreenButtonClicked()),
+ this, SLOT(toggleFullscreen()));
+
+ grabZoomKeys(true);
+ reloadSettings();
+
+ if(url.isEmpty() and listen_port == 0) {
+ disconnect_action->setEnabled(false);
+ showConnectDialog();
+ } else {
+ connectToHost(url, quality, listen_port, view_only);
+ }
}
void MainWindow::grabZoomKeys(bool grab)
{
- unsigned long val = (grab)?1:0;
- Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
- if(!atom) {
- qWarning("Couldn't get zoom key atom");
- return;
- }
- XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
- 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
-}
-
-void MainWindow::closeEvent(QCloseEvent*) {
- hide();
- grabZoomKeys(false);
- disconnectFromHost();
-}
-
-void MainWindow::about() {
- QMessageBox::about(this, tr("About Presence VNC"),
- tr("<center><h1>Presence VNC 0.1 alpha</h1>\
-A touch screen friendly VNC client\
-<small><p>©2010 Christian Pulvermacher <pulvermacher@gmx.de></p>\
-<p>Based on KRDC, © 2007-2008 Urs Wolfer</small></center>\
-<p>This program is free software; License: <a href=\"http://www.gnu.org/licenses/gpl-2.0.html\">GNU GPL 2</a> or later.</p>"));
-}
-
-/* swipe not used, and doesn't work without scaling anyway :/
-virtual bool event(QEvent *event) {
- if(event->type() == QEvent::MouseMove) {
- QMouseEvent *ev = dynamic_cast<QMouseEvent* >(event);
- if(!swipe_start.isNull()) {
- QPoint diff = swipe_start - ev->pos();
- const int swipe_dist = 60;
- if(diff.x() > swipe_dist and diff.y() < swipe_dist and diff.y() > -swipe_dist) { //
- menu->show();
- swipe_start = QPoint(0,0);
- }
- } else if((width() - ev->x()) < 10) {
- swipe_start = ev->pos();
- }
- std::cout << "mousex: " << width() - ev->x() << "\n";
- //TODO: make scrolling over border result in wheel events? i get weird (out of range) mouse events when that happens
- return true;
- } else if(event->type() == QEvent::MouseButtonRelease) {
- swipe_start = QPoint(0,0);
- return true;
- } else {
-// std::cout << "event " << event->type() << "\n";
- return QScrollArea::event(event);
- }
-}
-*/
-
-void MainWindow::connectDialog()
-{
- QSettings settings;
- QString url = QInputDialog::getText(this, "Connect to Host", "VNC Server:", QLineEdit::Normal, settings.value("last_hostname", "").toString());
- if(url.isEmpty()) { //dialog dismissed or nothing entered
- return;
- }
- settings.setValue("last_hostname", url);
- url = "vnc://" + url;
-
- disconnectFromHost();
-
- vnc_view = new VncView(0, url, RemoteView::Quality(2)); //TODO: get quality in dialog
- scroll_area->setWidget(vnc_view);
-
- connect(scaling, SIGNAL(toggled(bool)),
- vnc_view, SLOT(enableScaling(bool)));
- connect(scaling, SIGNAL(toggled(bool)),
- scroll_area, SLOT(setWidgetResizable(bool)));
- connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
- this, SLOT(statusChanged(RemoteView::RemoteStatus)));
- vnc_view->start();
- disconnect_action->setEnabled(true);
- toolbar->setEnabled(true);
+#ifdef Q_WS_MAEMO_5
+ unsigned long val = (grab)?1:0;
+ Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
+ if(!atom) {
+ qWarning("Couldn't get zoom key atom");
+ return;
+ }
+ XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
+ 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
+#endif
+}
+
+void MainWindow::closeEvent(QCloseEvent*)
+{
+ grabZoomKeys(false);
+
+ QSettings settings;
+ settings.setValue("show_toolbar", show_toolbar->isChecked());
+ settings.setValue("zoomlevel", zoom_slider->value());
+ settings.sync();
+
+ hide();
+
+ disconnectFromHost();
+}
+
+void MainWindow::about()
+{
+ QMessageBox::about(this, tr("About Presence VNC"),
+ tr("<center><h1>Presence VNC 0.8</h1>\
+ <p>A touchscreen friendly VNC client</p>\
+ <p><a href=\"http://presencevnc.garage.maemo.org/\">http://presencevnc.garage.maemo.org/</a></p></center>\
+ <small><p>©2010-2012 Christian Pulvermacher <pulvermacher@gmx.de><br />\
+ Based on KRDC, © 2007-2008 Urs Wolfer<br />\
+ and LibVNCServer, © 2001-2003 Johannes E. Schindelin</p>\
+ <p>This program is free software; License: <a href=\"http://www.gnu.org/licenses/gpl-2.0.html\">GNU GPL 2</a> or later.</p></small>"));
+}
+
+void MainWindow::showConnectDialog()
+{
+ ConnectDialog *connect_dialog = new ConnectDialog(this);
+ connect(connect_dialog, SIGNAL(connectToHost(QString, int, int, bool)),
+ this, SLOT(connectToHost(QString, int, int, bool)));
+ connect_dialog->exec();
+ //ConnectDialog cleans up after itself
+}
+
+void MainWindow::connectToHost(QString url, int quality, int listen_port, bool view_only)
+{
+ disconnectFromHost();
+
+ vnc_view = new VncView(this, url, RemoteView::Quality(quality), listen_port);
+ vnc_view->setViewOnly(view_only);
+
+ connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
+ this, SLOT(statusChanged(RemoteView::RemoteStatus)));
+ connect(vnc_view, SIGNAL(errorMessage(QString, QString)),
+ scroll_area, SLOT(showMessage(QString, QString)));
+ scroll_area->setWidget(vnc_view);
+ vnc_view->start();
+ setWindowTitle(QString("Presence VNC - %1").arg(vnc_view->host()) + (view_only?tr(" [View Only]"):""));
+
+ disconnect_action->setEnabled(true);
+
+ //reset key menu
+ delete key_menu;
+ key_menu = new KeyMenu(this);
}
void MainWindow::disconnectFromHost()
{
- if(!vnc_view)
- return;
+ if(!vnc_view)
+ return;
- vnc_view->startQuitting();
- scroll_area->setWidget(0);
+ setWindowTitle("Presence VNC");
+ disconnect_action->setEnabled(false);
+ toolbar->setEnabled(false);
+ scroll_area->setWidget(0);
- vnc_view->disconnect(); //remove all connections
- delete vnc_view;
- vnc_view = 0;
- disconnect_action->setEnabled(false);
- toolbar->setEnabled(false);
+ delete vnc_view;
+ vnc_view = 0;
}
void MainWindow::statusChanged(RemoteView::RemoteStatus status)
{
- static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
-
- switch(status) {
- case RemoteView::Connecting:
- setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
- break;
- case RemoteView::Connected:
- setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
- break;
- case RemoteView::Disconnecting:
- if(old_status != RemoteView::Disconnected) { //Disconnecting also occurs while connecting, so check last state
- QMaemo5InformationBox::information(this, "Connection lost");
- }
- break;
- case RemoteView::Disconnected:
- if(old_status == RemoteView::Disconnecting) {
- scroll_area->setWidget(0); //remove widget
- }
- break;
- }
-
- old_status = status;
-}
-
-//when rescaling is enabled, this resizes the widget to use available screen space
+ static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
+
+ switch(status) {
+ case RemoteView::Connecting:
+#ifdef Q_WS_MAEMO_5
+ setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
+#endif
+ break;
+ case RemoteView::Connected:
+#ifdef Q_WS_MAEMO_5
+ setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
+#endif
+ toolbar->setEnabled(true);
+
+ //disable key input buttons in view only mode
+ input_toolbuttons->setEnabled(!vnc_view->viewOnly());
+
+ vnc_view->setZoomLevel(zoom_slider->value());
+ vnc_view->useFastTransformations(false);
+ vnc_view->update();
+ break;
+ case RemoteView::Disconnecting:
+ if(old_status == RemoteView::Disconnected) //Disconnecting also occurs while connecting, so check last state
+ break;
+
+ if(disconnect_action->isEnabled()) //don't show when manually disconnecting
+ scroll_area->showMessage(tr("Connection lost"));
+
+ //clean up
+ scroll_area->setWidget(0);
+ vnc_view = 0;
+ setWindowTitle("Presence VNC");
+ disconnect_action->setEnabled(false);
+ toolbar->setEnabled(false);
+
+ //exit fullscreen mode
+ if(windowState() & Qt::WindowFullScreen)
+ setWindowState(windowState() ^ Qt::WindowFullScreen);
+ break;
+ case RemoteView::Disconnected:
+#ifdef Q_WS_MAEMO_5
+ setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
+#endif
+ if(old_status == RemoteView::Disconnecting) {
+ scroll_area->setWidget(0); //remove widget
+ }
+ break;
+ default: //avoid compiler warnings
+ break;
+ }
+
+ old_status = status;
+}
+
+//updates available screen space for current zoom level
//necessary when rotating, showing fullscreen, etc.
-void MainWindow::forceResize()
+void MainWindow::updateScreenSpace()
{
- if(vnc_view and scaling->isChecked()) {
- vnc_view->resize(scroll_area->size());
- }
-}
+ if(vnc_view) {
+ vnc_view->setZoomLevel();
+ }
+}
-void MainWindow::forceResizeDelayed()
+void MainWindow::updateScreenSpaceDelayed()
{
- QTimer::singleShot(500, this, SLOT(forceResize()));
+ QTimer::singleShot(500, this, SLOT(updateScreenSpace()));
}
void MainWindow::toggleFullscreen()
{
- setWindowState(windowState() ^ Qt::WindowFullScreen);
- forceResizeDelayed();
+ bool in_fullscreen = windowState() & Qt::WindowFullScreen;
+
+ //hide menu/toolbar in fullscreen (new state is !in_fullscreen)
+ toolbar->setVisible(show_toolbar->isChecked() and in_fullscreen);
+
+#ifndef Q_WS_MAEMO_5
+ //menu bar is invisible by default on maemo
+ menuBar()->setVisible(in_fullscreen);
+#endif
+
+ setWindowState(windowState() ^ Qt::WindowFullScreen);
+ updateScreenSpaceDelayed();
+}
+
+void MainWindow::showKeyMenu()
+{
+ key_menu->exec();
+ vnc_view->sendKeySequence(key_menu->getKeySequence());
+ key_menu_button->setChecked(key_menu->isAltChecked() or key_menu->isWinChecked());
+}
+
+void MainWindow::showPreferences()
+{
+ Preferences *p = new Preferences(this);
+ p->exec();
+ delete p;
+
+ reloadSettings();
}
+
+void MainWindow::reloadSettings()
+{
+ QSettings settings;
+ zoom_to_cursor = settings.value("zoom_to_cursor", true).toBool();
+
+#ifdef Q_WS_MAEMO_5
+ int rotation = settings.value("screen_rotation", 0).toInt();
+ setAttribute(Qt::WA_Maemo5AutoOrientation, rotation == 0);
+ setAttribute(Qt::WA_Maemo5LandscapeOrientation, rotation == 1);
+ setAttribute(Qt::WA_Maemo5PortraitOrientation, rotation == 2);
+#endif
+
+ if(vnc_view)
+ vnc_view->reloadSettings();
+}
+
+void MainWindow::resizeEvent(QResizeEvent *event)
+{
+ QMainWindow::resizeEvent(event);
+
+ updateScreenSpace();
+ if(vnc_view)
+ vnc_view->setZoomLevel(zoom_slider->value());
+
+#ifdef Q_WS_MAEMO_5
+ //in portrait mode, show only zoom slider and fullscreen button
+ //(opening HW keyboard or OSK will return to landscape)
+ const bool portrait = height() > width();
+ for(int i = 0; i < 7; i++)
+ toolbar->actions()[i]->setVisible(!portrait);
+#endif
+}
+
+void MainWindow::showInputPanel()
+{
+#ifdef Q_WS_MAEMO_5
+ //TODO: when hardware keyboard is open, this will only cause the IM to mess up 'real' key events
+ vnc_view->setAttribute(Qt::WA_InputMethodEnabled, true);
+ vnc_view->setInputMethodHints(Qt::ImhNoAutoUppercase); //without this, IM starts with caps lock
+
+ QEvent event(QEvent::RequestSoftwareInputPanel);
+ QApplication::sendEvent(vnc_view, &event);
+#endif
+}
+
+void MainWindow::setZoomLevel(int level)
+{
+ if(!vnc_view)
+ return;
+
+ const qreal old_factor = vnc_view->zoomFactor();
+ QPoint center = vnc_view->visibleRegion().boundingRect().center();
+
+ vnc_view->setZoomLevel(level);
+
+ const qreal new_factor = vnc_view->zoomFactor();
+
+ //scroll to center, if zoom level actually changed
+ if(old_factor != new_factor) {
+ if(zoom_to_cursor)
+ center = new_factor * vnc_view->cursorPosition();
+ else //zoom to center of visible region
+ center = center * (double(new_factor)/old_factor);
+
+ scroll_area->ensureVisible(center.x(), center.y(),
+ vnc_view->visibleRegion().boundingRect().width()/2,
+ vnc_view->visibleRegion().boundingRect().height()/2);
+
+ vnc_view->useFastTransformations(zoom_slider->isSliderDown());
+ vnc_view->update();
+
+ scroll_area->showMessage(tr("Zoom: %1\%").arg(qRound(100*new_factor)));
+ }
+}
+
+void MainWindow::zoomSliderReleased()
+{
+ static QTime time;
+ if(!time.isNull() and time.elapsed() < 500) //double clicked
+ zoom_slider->setValue(95); //100%
+
+ time.restart();
+
+ //stopped zooming, reenable high quality
+ vnc_view->useFastTransformations(false);
+}
+
+void MainWindow::displayStateChanged(QString state)
+{
+ const bool display_on = (state != "off");
+ if(vnc_view)
+ vnc_view->setDisplayOff(!display_on);
+}
+
+void MainWindow::sendTab() { vnc_view->sendKey(Qt::Key_Tab); }
+void MainWindow::sendEsc() { vnc_view->sendKey(Qt::Key_Escape); }
+void MainWindow::sendPgUp() { vnc_view->sendKey(Qt::Key_PageUp); }
+void MainWindow::sendPgDn() { vnc_view->sendKey(Qt::Key_PageDown); }
+void MainWindow::sendReturn() { vnc_view->sendKey(Qt::Key_Return); }