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