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

   1 #include "mainwindow.h"
   2 #include "preferences.h"
   3 #include "vncview.h"
   4
   5 #include <QtMaemo5>
   6 #include <QX11Info>
   7
   8 #include <X11/Xlib.h>
   9 #include <X11/Xatom.h>
  10
  11 #include <iostream>
  12
  13 MainWindow::MainWindow(QString url, int quality):
  14         QMainWindow(0),
  15         vnc_view(0),
  16         scroll_area(new QScrollArea(0))
  17 {
  18         setWindowTitle("Presence VNC");
  19 //      swipe_start = QPoint(0,0);
  20         setAttribute(Qt::WA_Maemo5StackedWindow);
  21         QSettings settings;
  22
  23         //set up toolbar
  24         toolbar = new QToolBar(0);
  25         toolbar->setAttribute(Qt::WA_InputMethodEnabled, true);
  26         toolbar->addAction("Mod", this, SLOT(showModifierMenu()));
  27         toolbar->addAction("Tab", this, SLOT(sendTab()));
  28         toolbar->addAction("Esc", this, SLOT(sendEsc()));
  29         toolbar->addAction("PgUp", this, SLOT(sendPgUp()));
  30         toolbar->addAction("PgDn", this, SLOT(sendPgDn()));
  31         toolbar->addAction("IM", toolbar, SLOT(setFocus())); //doesn't work
  32         toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"), "", this, SLOT(toggleFullscreen()));
  33         addToolBar(toolbar);
  34         toolbar->setVisible(settings.value("show_toolbar", true).toBool());
  35
  36         //set up menu
  37         QMenuBar *menu = new QMenuBar(this);
  38         QAction *connect_action = new QAction("Connect", this);
  39         disconnect_action = new QAction("Disconnect", this);
  40         menu->addAction(connect_action);
  41         menu->addAction(disconnect_action);
  42         scaling = new QAction("Rescale Remote Screen", this);
  43         scaling->setCheckable(true);
  44         scaling->setChecked(settings.value("rescale", true).toBool());
  45         menu->addAction(scaling);
  46         QAction *show_toolbar = new QAction("Show Toolbar", this);
  47         show_toolbar->setCheckable(true);
  48         show_toolbar->setChecked(settings.value("show_toolbar", true).toBool());
  49         menu->addAction(show_toolbar);
  50         QAction *pref_action = new QAction("Preferences", this);
  51         menu->addAction(pref_action);
  52         QAction *about_action = new QAction("About", this);
  53         menu->addAction(about_action);
  54
  55         //menu->setAttribute(Qt::WA_Maemo5StackedWindow);
  56         //menu->hide();
  57
  58         connect(about_action, SIGNAL(triggered()),
  59                 this, SLOT(about()));
  60         connect(pref_action, SIGNAL(triggered()),
  61                 this, SLOT(showPreferences()));
  62         connect(connect_action, SIGNAL(triggered()),
  63                 this, SLOT(connectDialog()));
  64         connect(disconnect_action, SIGNAL(triggered()),
  65                 this, SLOT(disconnectFromHost()));
  66         connect(show_toolbar, SIGNAL(toggled(bool)),
  67                 toolbar, SLOT(setVisible(bool)));
  68         connect(show_toolbar, SIGNAL(toggled(bool)),
  69                 this, SLOT(forceResizeDelayed()));
  70
  71         setCentralWidget(scroll_area);
  72
  73         grabZoomKeys(true);
  74         reloadSettings();
  75
  76         connect(QApplication::desktop(), SIGNAL(resized(int)),
  77                 this, SLOT(forceResize()));
  78
  79         if(url.isNull()) {
  80                 disconnect_action->setEnabled(false);
  81                 toolbar->setEnabled(false);
  82                 connectDialog();
  83         } else {
  84                 vnc_view = new VncView(0, url, RemoteView::Quality(quality));
  85                 connect(scaling, SIGNAL(toggled(bool)),
  86                         vnc_view, SLOT(enableScaling(bool)));
  87                 connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
  88                         this, SLOT(statusChanged(RemoteView::RemoteStatus)));
  89                 scroll_area->setWidget(vnc_view);
  90                 vnc_view->start();
  91                 vnc_view->enableScaling(scaling->isChecked());
  92         }
  93 }
  94
  95 void MainWindow::grabZoomKeys(bool grab)
  96 {
  97         unsigned long val = (grab)?1:0;
  98         Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
  99         if(!atom) {
 100                 qWarning("Couldn't get zoom key atom");
 101                 return;
 102         }
 103         XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
 104                 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
 105 }
 106
 107 void MainWindow::closeEvent(QCloseEvent*) {
 108         grabZoomKeys(false);
 109
 110         QSettings settings;
 111         settings.setValue("show_toolbar", toolbar->isVisible());
 112         settings.setValue("rescale", scaling->isChecked());
 113         settings.sync();
 114
 115         hide();
 116
 117         disconnectFromHost();
 118 }
 119
 120 void MainWindow::about() {
 121         QMessageBox::about(this, tr("About Presence VNC"),
 122                 tr("<center><h1>Presence VNC 0.1 beta</h1>\
 123 A touch screen friendly VNC client\
 124 <small><p>&copy;2010 Christian Pulvermacher &lt;pulvermacher@gmx.de&gt</p>\
 125 <p>Based on KRDC, &copy; 2007-2008 Urs Wolfer</small></center>\
 126 <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>"));
 127 }
 128
 129 /* swipe not used, and doesn't work without scaling anyway :/
 130 virtual bool event(QEvent *event) {
 131         if(event->type() == QEvent::MouseMove) {
 132                 QMouseEvent *ev = dynamic_cast<QMouseEvent* >(event);
 133                 if(!swipe_start.isNull()) {
 134                         QPoint diff = swipe_start - ev->pos();
 135                         const int swipe_dist = 60;
 136                         if(diff.x() > swipe_dist and diff.y() < swipe_dist and diff.y() > -swipe_dist) { //
 137                                 menu->show();
 138                                 swipe_start = QPoint(0,0);
 139                         }
 140                 } else if((width() - ev->x()) < 10) {
 141                         swipe_start = ev->pos();
 142                 }
 143                 std::cout << "mousex: " << width() - ev->x() << "\n";
 144                 //TODO: make scrolling over border result in wheel events? i get weird (out of range) mouse events when that happens
 145                 return true;
 146         } else if(event->type() == QEvent::MouseButtonRelease) {
 147                 swipe_start = QPoint(0,0);
 148                 return true;
 149         } else {
 150 //                      std::cout << "event " << event->type() << "\n";
 151                 return QScrollArea::event(event);
 152         }
 153 }
 154 */
 155
 156 void MainWindow::connectDialog()
 157 {
 158         QSettings settings;
 159         QString url = QInputDialog::getText(this, "Connect to Host", "VNC Server:", QLineEdit::Normal, settings.value("last_hostname", "").toString());
 160         if(url.isEmpty()) { //dialog dismissed or nothing entered
 161                 return;
 162         }
 163         settings.setValue("last_hostname", url);
 164         url = "vnc://" + url;
 165
 166         disconnectFromHost();
 167
 168         vnc_view = new VncView(0, url, RemoteView::Quality(2)); //TODO: get quality in dialog
 169         scroll_area->setWidget(vnc_view);
 170
 171         connect(scaling, SIGNAL(toggled(bool)),
 172                 vnc_view, SLOT(enableScaling(bool)));
 173         connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 174                 this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 175         vnc_view->start();
 176         vnc_view->enableScaling(scaling->isChecked());
 177         disconnect_action->setEnabled(true);
 178         toolbar->setEnabled(true);
 179 }
 180
 181 void MainWindow::disconnectFromHost()
 182 {
 183         if(!vnc_view)
 184                 return;
 185
 186         vnc_view->startQuitting();
 187         scroll_area->setWidget(0);
 188
 189         vnc_view->disconnect(); //remove all connections
 190         delete vnc_view;
 191         vnc_view = 0;
 192         disconnect_action->setEnabled(false);
 193         toolbar->setEnabled(false);
 194 }
 195
 196 void MainWindow::statusChanged(RemoteView::RemoteStatus status)
 197 {
 198         static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
 199
 200         switch(status) {
 201         case RemoteView::Connecting:
 202                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 203                 break;
 204         case RemoteView::Connected:
 205                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 206                 break;
 207         case RemoteView::Disconnecting:
 208                 if(old_status != RemoteView::Disconnected) { //Disconnecting also occurs while connecting, so check last state
 209                         QMaemo5InformationBox::information(this, "Connection lost");
 210                 }
 211                 break;
 212         case RemoteView::Disconnected:
 213                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 214                 if(old_status == RemoteView::Disconnecting) {
 215                         scroll_area->setWidget(0); //remove widget
 216                 }
 217                 break;
 218         }
 219
 220         old_status = status;
 221 }
 222
 223 //when rescaling is enabled, this resizes the widget to use available screen space
 224 //necessary when rotating, showing fullscreen, etc.
 225 void MainWindow::forceResize()
 226 {
 227         if(vnc_view and scaling->isChecked()) {
 228                 vnc_view->resize(scroll_area->size());
 229         }
 230 }
 231
 232 void MainWindow::forceResizeDelayed()
 233 {
 234         QTimer::singleShot(500, this, SLOT(forceResize()));
 235 }
 236
 237 void MainWindow::toggleFullscreen()
 238 {
 239         setWindowState(windowState() ^ Qt::WindowFullScreen);
 240         forceResizeDelayed();
 241 }
 242
 243 void MainWindow::showModifierMenu()
 244 {
 245         static QMenu *mod_menu = new QMenu(tr("Modifiers"), this);
 246         static QAction *win = mod_menu->addAction(tr("Win"));
 247         static QAction *alt = mod_menu->addAction(tr("Alt"));
 248         win->setCheckable(true);
 249         alt->setCheckable(true);
 250
 251         //show menu at top-left corner of toolbar
 252         QAction *chosen = mod_menu->exec(toolbar->mapToGlobal(QPoint(0,0)));
 253         if(!chosen) {
 254                 return;
 255         } else if(chosen == alt) {
 256                 vnc_view->sendKey(Qt::Key_Alt);
 257         } else if(chosen == win) {
 258                 vnc_view->sendKey(Qt::Key_Meta);
 259         } else {
 260                 std::cout << "unhandled action?\n";
 261         }
 262 }
 263
 264 void MainWindow::showPreferences()
 265 {
 266         Preferences *p = new Preferences(this);
 267         p->exec();
 268         delete p;
 269
 270         reloadSettings();
 271 }
 272
 273 void MainWindow::reloadSettings()
 274 {
 275         QSettings settings;
 276         int rotation = settings.value("screen_rotation", 0).toInt();
 277         setAttribute(Qt::WA_Maemo5AutoOrientation, rotation == 0);
 278         setAttribute(Qt::WA_Maemo5LandscapeOrientation, rotation == 1);
 279         setAttribute(Qt::WA_Maemo5PortraitOrientation, rotation == 2);
 280
 281         if(vnc_view)
 282                 vnc_view->reloadSettings();
 283 }