vcs.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("Fit to 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(this, 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         if(!vnc_view) //not connected
  95                 QTimer::singleShot(100, this, SLOT(close()));
  96 }
  97
  98 void MainWindow::grabZoomKeys(bool grab)
  99 {
 100         unsigned long val = (grab)?1:0;
 101         Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
 102         if(!atom) {
 103                 qWarning("Couldn't get zoom key atom");
 104                 return;
 105         }
 106         XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
 107                 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
 108 }
 109
 110 void MainWindow::closeEvent(QCloseEvent*) {
 111         grabZoomKeys(false);
 112
 113         QSettings settings;
 114         settings.setValue("show_toolbar", toolbar->isVisible());
 115         settings.setValue("rescale", scaling->isChecked());
 116         settings.sync();
 117
 118         hide();
 119
 120         disconnectFromHost();
 121 }
 122
 123 void MainWindow::about() {
 124         QMessageBox::about(this, tr("About Presence VNC"),
 125                 tr("<center><h1>Presence VNC 0.2</h1>\
 126 A touchscreen friendly VNC client\
 127 <small><p>&copy;2010 Christian Pulvermacher &lt;pulvermacher@gmx.de&gt</p>\
 128 <p>Based on KRDC, &copy; 2007-2008 Urs Wolfer</small></center>\
 129 <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>"));
 130 }
 131
 132 /* swipe not used, and doesn't work without scaling anyway :/
 133 virtual bool event(QEvent *event) {
 134         if(event->type() == QEvent::MouseMove) {
 135                 QMouseEvent *ev = dynamic_cast<QMouseEvent* >(event);
 136                 if(!swipe_start.isNull()) {
 137                         QPoint diff = swipe_start - ev->pos();
 138                         const int swipe_dist = 60;
 139                         if(diff.x() > swipe_dist and diff.y() < swipe_dist and diff.y() > -swipe_dist) { //
 140                                 menu->show();
 141                                 swipe_start = QPoint(0,0);
 142                         }
 143                 } else if((width() - ev->x()) < 10) {
 144                         swipe_start = ev->pos();
 145                 }
 146                 std::cout << "mousex: " << width() - ev->x() << "\n";
 147                 //TODO: make scrolling over border result in wheel events? i get weird (out of range) mouse events when that happens
 148                 return true;
 149         } else if(event->type() == QEvent::MouseButtonRelease) {
 150                 swipe_start = QPoint(0,0);
 151                 return true;
 152         } else {
 153 //                      std::cout << "event " << event->type() << "\n";
 154                 return QScrollArea::event(event);
 155         }
 156 }
 157 */
 158
 159 void MainWindow::connectDialog()
 160 {
 161         QSettings settings;
 162         QString url = QInputDialog::getText(this, "Connect to Host", "VNC Server:", QLineEdit::Normal, settings.value("last_hostname", "").toString());
 163         if(url.isEmpty()) { //dialog dismissed or nothing entered
 164                 return;
 165         }
 166         settings.setValue("last_hostname", url);
 167         url = "vnc://" + url;
 168
 169         disconnectFromHost();
 170
 171         vnc_view = new VncView(this, url, RemoteView::Quality(2)); //TODO: get quality in dialog
 172         scroll_area->setWidget(vnc_view);
 173
 174         connect(scaling, SIGNAL(toggled(bool)),
 175                 vnc_view, SLOT(enableScaling(bool)));
 176         connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 177                 this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 178         vnc_view->start();
 179         vnc_view->enableScaling(scaling->isChecked());
 180         disconnect_action->setEnabled(true);
 181         toolbar->setEnabled(true);
 182 }
 183
 184 void MainWindow::disconnectFromHost()
 185 {
 186         if(!vnc_view)
 187                 return;
 188
 189 //TODO: crashes when deleting vnc_view - no idea why
 190         //vnc_view->startQuitting();
 191         //scroll_area->setWidget(0);
 192
 193 //      vnc_view->disconnect(); //remove all connections
 194         //delete vnc_view;
 195         //vnc_view = 0;
 196         disconnect_action->setEnabled(false);
 197         toolbar->setEnabled(false);
 198 }
 199
 200 void MainWindow::statusChanged(RemoteView::RemoteStatus status)
 201 {
 202         static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
 203
 204         switch(status) {
 205         case RemoteView::Connecting:
 206                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 207                 break;
 208         case RemoteView::Connected:
 209                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 210                 break;
 211         case RemoteView::Disconnecting:
 212                 if(old_status != RemoteView::Disconnected) { //Disconnecting also occurs while connecting, so check last state
 213                         QMaemo5InformationBox::information(this, "Connection lost");
 214                         close();
 215                 }
 216                 break;
 217         case RemoteView::Disconnected:
 218                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 219                 if(old_status == RemoteView::Disconnecting) {
 220                         scroll_area->setWidget(0); //remove widget
 221                 }
 222                 break;
 223         }
 224
 225         old_status = status;
 226 }
 227
 228 //when rescaling is enabled, this resizes the widget to use available screen space
 229 //necessary when rotating, showing fullscreen, etc.
 230 void MainWindow::forceResize()
 231 {
 232         if(vnc_view and scaling->isChecked()) {
 233                 vnc_view->resize(scroll_area->size());
 234         }
 235 }
 236
 237 void MainWindow::forceResizeDelayed()
 238 {
 239         QTimer::singleShot(500, this, SLOT(forceResize()));
 240 }
 241
 242 void MainWindow::toggleFullscreen()
 243 {
 244         setWindowState(windowState() ^ Qt::WindowFullScreen);
 245         forceResizeDelayed();
 246 }
 247
 248 void MainWindow::showModifierMenu()
 249 {
 250         static QMenu *mod_menu = new QMenu(tr("Modifiers"), this);
 251         static QAction *win = mod_menu->addAction(tr("Win"));
 252         static QAction *alt = mod_menu->addAction(tr("Alt"));
 253         win->setCheckable(true);
 254         alt->setCheckable(true);
 255
 256         //show menu at top-left corner of toolbar
 257         QAction *chosen = mod_menu->exec(toolbar->mapToGlobal(QPoint(0,0)));
 258         if(!chosen) {
 259                 return;
 260         } else if(chosen == alt) {
 261                 vnc_view->sendKey(Qt::Key_Alt);
 262         } else if(chosen == win) {
 263                 vnc_view->sendKey(Qt::Key_Meta);
 264         } else {
 265                 std::cout << "unhandled action?\n";
 266         }
 267 }
 268
 269 void MainWindow::showPreferences()
 270 {
 271         Preferences *p = new Preferences(this);
 272         p->exec();
 273         delete p;
 274
 275         reloadSettings();
 276 }
 277
 278 void MainWindow::reloadSettings()
 279 {
 280         QSettings settings;
 281         int rotation = settings.value("screen_rotation", 0).toInt();
 282         setAttribute(Qt::WA_Maemo5AutoOrientation, rotation == 0);
 283         setAttribute(Qt::WA_Maemo5LandscapeOrientation, rotation == 1);
 284         setAttribute(Qt::WA_Maemo5PortraitOrientation, rotation == 2);
 285
 286         if(vnc_view)
 287                 vnc_view->reloadSettings();
 288 }