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

   1 /*
   2     Presence VNC
   3     Copyright (C) 2010 Christian Pulvermacher
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License along
  16     with this program; if not, write to the Free Software Foundation, Inc.,
  17     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19 #include "connectdialog.h"
  20 #include "fullscreenexitbutton.h"
  21 #include "keymenu.h"
  22 #include "mainwindow.h"
  23 #include "preferences.h"
  24 #include "vncview.h"
  25
  26 #ifdef Q_WS_MAEMO_5
  27 #include <QtMaemo5>
  28 #include <QX11Info>
  29
  30 #include <X11/Xlib.h>
  31 #include <X11/Xatom.h>
  32 #endif
  33
  34
  35
  36 MainWindow::MainWindow(QString url, int quality):
  37         QMainWindow(0),
  38         vnc_view(0),
  39         scroll_area(new ScrollArea(0)),
  40         key_menu(0)
  41 {
  42         setWindowTitle("Presence VNC");
  43
  44         migrateConfiguration();
  45         QSettings settings;
  46
  47 #ifdef Q_WS_MAEMO_5
  48         setAttribute(Qt::WA_Maemo5StackedWindow);
  49 #endif
  50
  51         //set up toolbar
  52         toolbar = new QToolBar(0);
  53         toolbar->addAction(QChar(0x2026), this, SLOT(showKeyMenu())); //"..." button
  54         toolbar->addAction(tr("Tab"), this, SLOT(sendTab()));
  55         toolbar->addAction(tr("Esc"), this, SLOT(sendEsc()));
  56         toolbar->addAction(tr("PgUp"), this, SLOT(sendPgUp()));
  57         toolbar->addAction(tr("PgDn"), this, SLOT(sendPgDn()));
  58 #ifdef Q_WS_MAEMO_5
  59         toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/chat_enter.png"), "", this, SLOT(sendReturn()));
  60         toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/control_keyboard.png"), "", this, SLOT(showInputPanel()));
  61 #endif
  62
  63         //move remaining buttons to the right
  64         QWidget *spacer = new QWidget();
  65         spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
  66         toolbar->addWidget(spacer);
  67
  68         toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"), "", this, SLOT(toggleFullscreen()));
  69         addToolBar(toolbar);
  70         toolbar->setVisible(settings.value("show_toolbar", true).toBool());
  71
  72         //set up zoombar
  73         zoombar = new QToolBar(0);
  74         zoom_slider = new QSlider(Qt::Horizontal, 0);
  75         zoom_slider->setRange(0, 100);
  76         connect(zoom_slider, SIGNAL(valueChanged(int)),
  77                 this, SLOT(setZoomLevel(int)));
  78         zoom_slider->setValue(settings.value("zoomlevel", 95).toInt());
  79         zoombar->addWidget(zoom_slider);
  80         addToolBar(zoombar);
  81
  82         //set up menu
  83         QAction *connect_action = new QAction(tr("Connect"), this);
  84         disconnect_action = new QAction(tr("Disconnect"), this);
  85         show_toolbar = new QAction(tr("Show Toolbar"), this);
  86         show_toolbar->setCheckable(true);
  87         show_toolbar->setChecked(settings.value("show_toolbar", true).toBool());
  88         QAction *pref_action = new QAction(tr("Preferences"), this);
  89         QAction *about_action = new QAction(tr("About"), this);
  90
  91 #ifdef Q_WS_MAEMO_5
  92         menuBar()->addAction(connect_action);
  93         menuBar()->addAction(disconnect_action);
  94         menuBar()->addAction(show_toolbar);
  95         menuBar()->addAction(pref_action);
  96         menuBar()->addAction(about_action);
  97 #else
  98         QMenu* session_menu = menuBar()->addMenu(tr("&Session"));
  99         session_menu->addAction(connect_action);
 100         session_menu->addAction(disconnect_action);
 101         session_menu->addSeparator();
 102         session_menu->addAction(pref_action);
 103         session_menu->addSeparator();
 104         session_menu->addAction(tr("&Quit"), this, SLOT(close()));
 105
 106         QMenu* view_menu = menuBar()->addMenu(tr("&View"));
 107         view_menu->addAction(show_toolbar);
 108
 109         QMenu* help_menu = menuBar()->addMenu(tr("&Help"));
 110         help_menu->addAction(about_action);
 111 #endif
 112
 113         connect(about_action, SIGNAL(triggered()),
 114                 this, SLOT(about()));
 115         connect(pref_action, SIGNAL(triggered()),
 116                 this, SLOT(showPreferences()));
 117         connect(connect_action, SIGNAL(triggered()),
 118                 this, SLOT(showConnectDialog()));
 119         connect(disconnect_action, SIGNAL(triggered()),
 120                 this, SLOT(disconnectFromHost()));
 121         connect(show_toolbar, SIGNAL(toggled(bool)),
 122                 toolbar, SLOT(setVisible(bool)));
 123         connect(show_toolbar, SIGNAL(toggled(bool)),
 124                 this, SLOT(forceResizeDelayed()));
 125
 126         setCentralWidget(scroll_area);
 127         new FullScreenExitButton(this);
 128
 129         grabZoomKeys(true);
 130         reloadSettings();
 131
 132         if(url.isNull()) {
 133                 disconnect_action->setEnabled(false);
 134                 toolbar->setEnabled(false);
 135                 showConnectDialog();
 136         } else {
 137                 vnc_view = new VncView(this, url, RemoteView::Quality(quality));
 138                 connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 139                         this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 140                 scroll_area->setWidget(vnc_view);
 141                 vnc_view->start();
 142                 key_menu = new KeyMenu(this);
 143         }
 144 }
 145
 146 void MainWindow::grabZoomKeys(bool grab)
 147 {
 148 #ifdef Q_WS_MAEMO_5
 149         unsigned long val = (grab)?1:0;
 150         Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
 151         if(!atom) {
 152                 qWarning("Couldn't get zoom key atom");
 153                 return;
 154         }
 155         XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
 156                 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
 157 #endif
 158 }
 159
 160 void MainWindow::closeEvent(QCloseEvent*) {
 161         grabZoomKeys(false);
 162
 163         QSettings settings;
 164         settings.setValue("show_toolbar", show_toolbar->isChecked());
 165         settings.setValue("zoomlevel", zoom_slider->value());
 166         settings.sync();
 167
 168         hide();
 169
 170         disconnectFromHost();
 171 }
 172
 173 void MainWindow::about() {
 174         QMessageBox::about(this, tr("About Presence VNC"),
 175                 tr("<center><h1>Presence VNC 0.6</h1>\
 176 <p>A touchscreen friendly VNC client</p>\
 177 <p><a href=\"https://garage.maemo.org/projects/presencevnc/\">https://garage.maemo.org/projects/presencevnc</a></p></center>\
 178 <small><p>&copy;2010 Christian Pulvermacher &lt;pulvermacher@gmx.de&gt;<br />\
 179 Based on KRDC, &copy; 2007-2008 Urs Wolfer<br />\
 180 and LibVNCServer, &copy; 2001-2003 Johannes E. Schindelin</p>\
 181 <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>"));
 182 }
 183
 184 void MainWindow::showConnectDialog()
 185 {
 186         ConnectDialog *connect_dialog = new ConnectDialog(this);
 187         connect(connect_dialog, SIGNAL(connectToHost(QString, int)),
 188                 this, SLOT(connectToHost(QString, int)));
 189         connect_dialog->exec();
 190 }
 191
 192 void MainWindow::connectToHost(QString url, int quality)
 193 {
 194         disconnectFromHost();
 195
 196         vnc_view = new VncView(this, url, RemoteView::Quality(quality));
 197
 198         connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 199                 this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 200         scroll_area->setWidget(vnc_view);
 201         vnc_view->start();
 202         disconnect_action->setEnabled(true);
 203         toolbar->setEnabled(true);
 204
 205         if(key_menu) //reset
 206                 delete key_menu;
 207         key_menu = new KeyMenu(this);
 208 }
 209
 210 void MainWindow::disconnectFromHost()
 211 {
 212         if(!vnc_view)
 213                 return;
 214
 215         scroll_area->setWidget(0);
 216
 217         vnc_view->disconnect(); //remove all signal-slot connections
 218         delete vnc_view;
 219         vnc_view = 0;
 220         disconnect_action->setEnabled(false);
 221         toolbar->setEnabled(false);
 222 }
 223
 224 void MainWindow::statusChanged(RemoteView::RemoteStatus status)
 225 {
 226         static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
 227
 228         switch(status) {
 229         case RemoteView::Connecting:
 230 #ifdef Q_WS_MAEMO_5
 231                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 232 #endif
 233                 break;
 234         case RemoteView::Connected:
 235 #ifdef Q_WS_MAEMO_5
 236                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 237 #endif
 238                 /* TODO: still needed?
 239                 if(!scaling->isChecked()) {
 240                         //ugly hack to force a refresh (forceFullRepaint() doesn't repaint?? -> vnc_view hidden???)
 241                         vnc_view->resize(scroll_area->size());
 242                         vnc_view->enableScaling(false);
 243                 }
 244                 */
 245                 break;
 246         case RemoteView::Disconnecting:
 247                 if(old_status != RemoteView::Disconnected) { //Disconnecting also occurs while connecting, so check last state
 248 #ifdef Q_WS_MAEMO_5
 249                         QMaemo5InformationBox::information(this, tr("Connection lost"));
 250 #endif
 251
 252                         //clean up
 253                         scroll_area->setWidget(0);
 254                         vnc_view = 0;
 255                         disconnect_action->setEnabled(false);
 256                         toolbar->setEnabled(false);
 257
 258                         //exit fullscreen mode
 259                         if(windowState() & Qt::WindowFullScreen)
 260                                 setWindowState(windowState() ^ Qt::WindowFullScreen);
 261                 }
 262                 break;
 263         case RemoteView::Disconnected:
 264 #ifdef Q_WS_MAEMO_5
 265                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 266 #endif
 267                 if(old_status == RemoteView::Disconnecting) {
 268                         scroll_area->setWidget(0); //remove widget
 269                 }
 270                 break;
 271         }
 272
 273         old_status = status;
 274 }
 275
 276 //resizes the widget to use available screen space
 277 //necessary when rotating, showing fullscreen, etc.
 278 void MainWindow::forceResize()
 279 {
 280         if(vnc_view) {
 281                 vnc_view->resize(scroll_area->size());
 282         }
 283 }
 284
 285 void MainWindow::forceResizeDelayed()
 286 {
 287         QTimer::singleShot(500, this, SLOT(forceResize()));
 288 }
 289
 290 void MainWindow::toggleFullscreen()
 291 {
 292         bool in_fullscreen = windowState() & Qt::WindowFullScreen;
 293
 294         //hide menu/toolbar in fullscreen (new state is !in_fullscreen)
 295         toolbar->setVisible(show_toolbar->isChecked() and in_fullscreen);
 296
 297 #ifndef Q_WS_MAEMO_5
 298         //menu bar is invisible by default on maemo
 299         menuBar()->setVisible(in_fullscreen);
 300 #endif
 301
 302         setWindowState(windowState() ^ Qt::WindowFullScreen);
 303         forceResizeDelayed();
 304 }
 305
 306 void MainWindow::showKeyMenu()
 307 {
 308         key_menu->exec();
 309         vnc_view->sendKeySequence(key_menu->getKeySequence());
 310 }
 311
 312 void MainWindow::showPreferences()
 313 {
 314         Preferences *p = new Preferences(this);
 315         p->exec();
 316         delete p;
 317
 318         reloadSettings();
 319 }
 320
 321 void MainWindow::reloadSettings()
 322 {
 323         QSettings settings;
 324 #ifdef Q_WS_MAEMO_5
 325         int rotation = settings.value("screen_rotation", 0).toInt();
 326         setAttribute(Qt::WA_Maemo5AutoOrientation, rotation == 0);
 327         setAttribute(Qt::WA_Maemo5LandscapeOrientation, rotation == 1);
 328         setAttribute(Qt::WA_Maemo5PortraitOrientation, rotation == 2);
 329 #endif
 330
 331         if(vnc_view)
 332                 vnc_view->reloadSettings();
 333 }
 334
 335 void MainWindow::resizeEvent(QResizeEvent *event)
 336 {
 337         QMainWindow::resizeEvent(event);
 338
 339         forceResize();
 340         if(vnc_view)
 341                 vnc_view->setZoomLevel(zoom_slider->value());
 342 }
 343
 344 void MainWindow::showInputPanel()
 345 {
 346 #ifdef Q_WS_MAEMO_5
 347         //TODO: when hardware keyboard is open, this will only cause the IM to mess up 'real' key events
 348         vnc_view->setAttribute(Qt::WA_InputMethodEnabled, true);
 349         vnc_view->setInputMethodHints(Qt::ImhNoAutoUppercase); //without this, IM starts with caps lock
 350
 351         QEvent event(QEvent::RequestSoftwareInputPanel);
 352         QApplication::sendEvent(vnc_view, &event);
 353 #endif
 354 }
 355
 356 void MainWindow::setZoomLevel(int level)
 357 {
 358         if(vnc_view)
 359                 vnc_view->setZoomLevel(level);
 360 }