vcs.maemo.org Git - presencevnc/blob - src/mainwindow.cpp

   1 #include "mainwindow.h"
   2 #include "vncview.h"
   3
   4 #include <QtMaemo5>
   5 #include <QX11Info>
   6
   7 #include <X11/Xlib.h>
   8 #include <X11/Xatom.h>
   9
  10 #include <iostream>
  11
  12 MainWindow::MainWindow(QString url, int quality):
  13         QMainWindow(0),
  14         vnc_view(0),
  15         scroll_area(new QScrollArea(0))
  16 {
  17         setWindowTitle("Presence VNC");
  18         swipe_start = QPoint(0,0);
  19         setAttribute(Qt::WA_Maemo5StackedWindow);
  20
  21         //set up toolbar
  22         toolbar = new QToolBar(0);
  23         toolbar->addAction("Mod"); //TODO
  24         toolbar->addAction("Tab", this, SLOT(sendTab()));
  25         toolbar->addAction("Esc", this, SLOT(sendEsc()));
  26         toolbar->addAction("PgUp", this, SLOT(sendPgUp()));
  27         toolbar->addAction("PgDn", this, SLOT(sendPgDn()));
  28         toolbar->addAction("Fullscreen", this, SLOT(toggleFullscreen()));
  29         addToolBar(toolbar);
  30
  31         //set up menu
  32         QMenuBar *menu = new QMenuBar(this);
  33         QAction *connect_action = new QAction("Connect", this);
  34         disconnect_action = new QAction("Disconnect", this);
  35         menu->addAction(connect_action);
  36         menu->addAction(disconnect_action);
  37         scaling = new QAction("Rescale Remote Screen", this);
  38         scaling->setCheckable(true);
  39         scaling->setChecked(true);
  40         menu->addAction(scaling);
  41         QAction *show_toolbar = new QAction("Show Toolbar", this);
  42         show_toolbar->setCheckable(true);
  43         show_toolbar->setChecked(true);
  44         menu->addAction(show_toolbar);
  45         QAction *about_action = new QAction("About", this);
  46         menu->addAction(about_action);
  47
  48         //menu->setAttribute(Qt::WA_Maemo5StackedWindow);
  49         //menu->hide();
  50
  51         connect(about_action, SIGNAL(triggered()),
  52                 this, SLOT(about()));
  53         connect(connect_action, SIGNAL(triggered()),
  54                 this, SLOT(connectDialog()));
  55         connect(disconnect_action, SIGNAL(triggered()),
  56                 this, SLOT(disconnectFromHost()));
  57         connect(show_toolbar, SIGNAL(toggled(bool)),
  58                 toolbar, SLOT(setVisible(bool)));
  59
  60         setCentralWidget(scroll_area);
  61
  62         grabZoomKeys(true);
  63         setAttribute(Qt::WA_Maemo5AutoOrientation, true);
  64         //setAttribute(Qt::WA_Maemo5PortraitOrientation, true);
  65
  66         if(url.isNull()) {
  67                 disconnect_action->setEnabled(false);
  68                 toolbar->setEnabled(false);
  69                 connectDialog();
  70         } else {
  71                 vnc_view = new VncView(0, url, RemoteView::Quality(quality));
  72                 connect(scaling, SIGNAL(toggled(bool)),
  73                         vnc_view, SLOT(enableScaling(bool)));
  74                 connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
  75                         this, SLOT(statusChanged(RemoteView::RemoteStatus)));
  76                 scroll_area->setWidget(vnc_view);
  77                 vnc_view->start();
  78         }
  79 }
  80
  81 void MainWindow::grabZoomKeys(bool grab)
  82 {
  83         unsigned long val = (grab)?1:0;
  84         Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
  85         if(!atom) {
  86                 qWarning("Couldn't get zoom key atom");
  87                 return;
  88         }
  89         XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
  90                 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
  91 }
  92
  93 void MainWindow::closeEvent(QCloseEvent*) {
  94         hide();
  95         grabZoomKeys(false);
  96         disconnectFromHost();
  97 }
  98
  99 void MainWindow::about() {
 100         QMessageBox::about(this, tr("About Presence VNC"),
 101                 tr("<center><h1>Presence VNC 0.1 alpha</h1>\
 102 A touch screen friendly VNC client\
 103 <small><p>&copy;2010 Christian Pulvermacher &lt;pulvermacher@gmx.de&gt</p>\
 104 <p>Based on KRDC, &copy; 2007-2008 Urs Wolfer</small></center>\
 105 <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>"));
 106 }
 107
 108 /* swipe not used, and doesn't work without scaling anyway :/
 109 virtual bool event(QEvent *event) {
 110         if(event->type() == QEvent::MouseMove) {
 111                 QMouseEvent *ev = dynamic_cast<QMouseEvent* >(event);
 112                 if(!swipe_start.isNull()) {
 113                         QPoint diff = swipe_start - ev->pos();
 114                         const int swipe_dist = 60;
 115                         if(diff.x() > swipe_dist and diff.y() < swipe_dist and diff.y() > -swipe_dist) { //
 116                                 menu->show();
 117                                 swipe_start = QPoint(0,0);
 118                         }
 119                 } else if((width() - ev->x()) < 10) {
 120                         swipe_start = ev->pos();
 121                 }
 122                 std::cout << "mousex: " << width() - ev->x() << "\n";
 123                 //TODO: make scrolling over border result in wheel events? i get weird (out of range) mouse events when that happens
 124                 return true;
 125         } else if(event->type() == QEvent::MouseButtonRelease) {
 126                 swipe_start = QPoint(0,0);
 127                 return true;
 128         } else {
 129 //                      std::cout << "event " << event->type() << "\n";
 130                 return QScrollArea::event(event);
 131         }
 132 }
 133 */
 134
 135 void MainWindow::connectDialog()
 136 {
 137         QSettings settings;
 138         QString url = QInputDialog::getText(this, "Connect to Host", "VNC Server:", QLineEdit::Normal, settings.value("last_hostname", "").toString());
 139         if(url.isEmpty()) { //dialog dismissed or nothing entered
 140                 return;
 141         }
 142         settings.setValue("last_hostname", url);
 143         url = "vnc://" + url;
 144
 145         disconnectFromHost();
 146
 147         vnc_view = new VncView(0, url, RemoteView::Quality(2)); //TODO: get quality in dialog
 148         scroll_area->setWidget(vnc_view);
 149
 150         connect(scaling, SIGNAL(toggled(bool)),
 151                 vnc_view, SLOT(enableScaling(bool)));
 152         connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 153                 this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 154         vnc_view->start();
 155         disconnect_action->setEnabled(true);
 156         toolbar->setEnabled(true);
 157 }
 158
 159 void MainWindow::disconnectFromHost()
 160 {
 161         if(!vnc_view)
 162                 return;
 163
 164         vnc_view->startQuitting();
 165         scroll_area->setWidget(0);
 166
 167         vnc_view->disconnect(); //remove all connections
 168         delete vnc_view;
 169         vnc_view = 0;
 170         disconnect_action->setEnabled(false);
 171         toolbar->setEnabled(false);
 172 }
 173
 174 void MainWindow::statusChanged(RemoteView::RemoteStatus status)
 175 {
 176         static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
 177
 178         switch(status) {
 179         case RemoteView::Connecting:
 180                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 181                 break;
 182         case RemoteView::Connected:
 183                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 184                 break;
 185         case RemoteView::Disconnecting:
 186                 if(old_status != RemoteView::Disconnected) { //Disconnecting also occurs while connecting, so check last state
 187                         QMaemo5InformationBox::information(this, "Connection lost");
 188                 }
 189                 break;
 190         case RemoteView::Disconnected:
 191                 if(old_status == RemoteView::Disconnecting) {
 192                         scroll_area->setWidget(0); //remove widget
 193                 }
 194                 break;
 195         }
 196
 197         old_status = status;
 198 }