vcs.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         /*
  64         //move remaining buttons to the right
  65         QWidget *spacer = new QWidget();
  66         spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
  67         toolbar->addWidget(spacer);
  68         */
  69
  70         zoom_slider = new QSlider(Qt::Horizontal, 0);
  71         zoom_slider->setRange(0, 100);
  72         connect(zoom_slider, SIGNAL(valueChanged(int)),
  73                 this, SLOT(setZoomLevel(int)));
  74         zoom_slider->setValue(settings.value("zoomlevel", 95).toInt());
  75         toolbar->addWidget(zoom_slider);
  76
  77         toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"), "", this, SLOT(toggleFullscreen()));
  78         addToolBar(toolbar);
  79         toolbar->setVisible(settings.value("show_toolbar", true).toBool());
  80
  81         //set up menu
  82         QAction *connect_action = new QAction(tr("Connect"), this);
  83         disconnect_action = new QAction(tr("Disconnect"), this);
  84         show_toolbar = new QAction(tr("Show Toolbar"), this);
  85         show_toolbar->setCheckable(true);
  86         show_toolbar->setChecked(settings.value("show_toolbar", true).toBool());
  87         QAction *pref_action = new QAction(tr("Preferences"), this);
  88         QAction *about_action = new QAction(tr("About"), this);
  89
  90 #ifdef Q_WS_MAEMO_5
  91         menuBar()->addAction(connect_action);
  92         menuBar()->addAction(disconnect_action);
  93         menuBar()->addAction(show_toolbar);
  94         menuBar()->addAction(pref_action);
  95         menuBar()->addAction(about_action);
  96 #else
  97         QMenu* session_menu = menuBar()->addMenu(tr("&Session"));
  98         session_menu->addAction(connect_action);
  99         session_menu->addAction(disconnect_action);
 100         session_menu->addSeparator();
 101         session_menu->addAction(pref_action);
 102         session_menu->addSeparator();
 103         session_menu->addAction(tr("&Quit"), this, SLOT(close()));
 104
 105         QMenu* view_menu = menuBar()->addMenu(tr("&View"));
 106         view_menu->addAction(show_toolbar);
 107
 108         QMenu* help_menu = menuBar()->addMenu(tr("&Help"));
 109         help_menu->addAction(about_action);
 110 #endif
 111
 112         connect(about_action, SIGNAL(triggered()),
 113                 this, SLOT(about()));
 114         connect(pref_action, SIGNAL(triggered()),
 115                 this, SLOT(showPreferences()));
 116         connect(connect_action, SIGNAL(triggered()),
 117                 this, SLOT(showConnectDialog()));
 118         connect(disconnect_action, SIGNAL(triggered()),
 119                 this, SLOT(disconnectFromHost()));
 120         connect(show_toolbar, SIGNAL(toggled(bool)),
 121                 toolbar, SLOT(setVisible(bool)));
 122         connect(show_toolbar, SIGNAL(toggled(bool)),
 123                 this, SLOT(forceResizeDelayed()));
 124
 125         setCentralWidget(scroll_area);
 126         new FullScreenExitButton(this);
 127
 128         grabZoomKeys(true);
 129         reloadSettings();
 130
 131         if(url.isNull()) {
 132                 disconnect_action->setEnabled(false);
 133                 toolbar->setEnabled(false);
 134                 showConnectDialog();
 135         } else {
 136                 vnc_view = new VncView(this, url, RemoteView::Quality(quality));
 137                 connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 138                         this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 139                 scroll_area->setWidget(vnc_view);
 140                 vnc_view->start();
 141                 key_menu = new KeyMenu(this);
 142         }
 143 }
 144
 145 void MainWindow::grabZoomKeys(bool grab)
 146 {
 147 #ifdef Q_WS_MAEMO_5
 148         unsigned long val = (grab)?1:0;
 149         Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
 150         if(!atom) {
 151                 qWarning("Couldn't get zoom key atom");
 152                 return;
 153         }
 154         XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
 155                 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
 156 #endif
 157 }
 158
 159 void MainWindow::closeEvent(QCloseEvent*) {
 160         grabZoomKeys(false);
 161
 162         QSettings settings;
 163         settings.setValue("show_toolbar", show_toolbar->isChecked());
 164         settings.setValue("zoomlevel", zoom_slider->value());
 165         settings.sync();
 166
 167         hide();
 168
 169         disconnectFromHost();
 170 }
 171
 172 void MainWindow::about() {
 173         QMessageBox::about(this, tr("About Presence VNC"),
 174                 tr("<center><h1>Presence VNC 0.6</h1>\
 175 <p>A touchscreen friendly VNC client</p>\
 176 <p><a href=\"https://garage.maemo.org/projects/presencevnc/\">https://garage.maemo.org/projects/presencevnc</a></p></center>\
 177 <small><p>&copy;2010 Christian Pulvermacher &lt;pulvermacher@gmx.de&gt;<br />\
 178 Based on KRDC, &copy; 2007-2008 Urs Wolfer<br />\
 179 and LibVNCServer, &copy; 2001-2003 Johannes E. Schindelin</p>\
 180 <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>"));
 181 }
 182
 183 void MainWindow::showConnectDialog()
 184 {
 185         ConnectDialog *connect_dialog = new ConnectDialog(this);
 186         connect(connect_dialog, SIGNAL(connectToHost(QString, int)),
 187                 this, SLOT(connectToHost(QString, int)));
 188         connect_dialog->exec();
 189 }
 190
 191 void MainWindow::connectToHost(QString url, int quality)
 192 {
 193         disconnectFromHost();
 194
 195         vnc_view = new VncView(this, url, RemoteView::Quality(quality));
 196
 197         connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
 198                 this, SLOT(statusChanged(RemoteView::RemoteStatus)));
 199         scroll_area->setWidget(vnc_view);
 200         vnc_view->start();
 201         disconnect_action->setEnabled(true);
 202         toolbar->setEnabled(true);
 203
 204         if(key_menu) //reset
 205                 delete key_menu;
 206         key_menu = new KeyMenu(this);
 207 }
 208
 209 void MainWindow::disconnectFromHost()
 210 {
 211         if(!vnc_view)
 212                 return;
 213
 214         scroll_area->setWidget(0);
 215
 216         delete vnc_view;
 217         vnc_view = 0;
 218         disconnect_action->setEnabled(false);
 219         toolbar->setEnabled(false);
 220 }
 221
 222 void MainWindow::statusChanged(RemoteView::RemoteStatus status)
 223 {
 224         static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
 225
 226         switch(status) {
 227         case RemoteView::Connecting:
 228 #ifdef Q_WS_MAEMO_5
 229                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 230 #endif
 231                 break;
 232         case RemoteView::Connected:
 233 #ifdef Q_WS_MAEMO_5
 234                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 235 #endif
 236                 vnc_view->setZoomLevel(zoom_slider->value());
 237                 vnc_view->forceFullRepaint();
 238                 break;
 239         case RemoteView::Disconnecting:
 240                 if(old_status != RemoteView::Disconnected) { //Disconnecting also occurs while connecting, so check last state
 241 #ifdef Q_WS_MAEMO_5
 242                         QMaemo5InformationBox::information(this, tr("Connection lost"));
 243 #endif
 244
 245                         //clean up
 246                         scroll_area->setWidget(0);
 247                         vnc_view = 0;
 248                         disconnect_action->setEnabled(false);
 249                         toolbar->setEnabled(false);
 250
 251                         //exit fullscreen mode
 252                         if(windowState() & Qt::WindowFullScreen)
 253                                 setWindowState(windowState() ^ Qt::WindowFullScreen);
 254                 }
 255                 break;
 256         case RemoteView::Disconnected:
 257 #ifdef Q_WS_MAEMO_5
 258                 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 259 #endif
 260                 if(old_status == RemoteView::Disconnecting) {
 261                         scroll_area->setWidget(0); //remove widget
 262                 }
 263                 break;
 264         default: //avoid compiler warnings
 265                 break;
 266         }
 267
 268         old_status = status;
 269 }
 270
 271 //resizes the widget to use available screen space
 272 //necessary when rotating, showing fullscreen, etc.
 273 void MainWindow::forceResize()
 274 {
 275         if(vnc_view) {
 276                 vnc_view->resize(scroll_area->size());
 277         }
 278 }
 279
 280 void MainWindow::forceResizeDelayed()
 281 {
 282         QTimer::singleShot(500, this, SLOT(forceResize()));
 283 }
 284
 285 void MainWindow::toggleFullscreen()
 286 {
 287         bool in_fullscreen = windowState() & Qt::WindowFullScreen;
 288
 289         //hide menu/toolbar in fullscreen (new state is !in_fullscreen)
 290         toolbar->setVisible(show_toolbar->isChecked() and in_fullscreen);
 291
 292 #ifndef Q_WS_MAEMO_5
 293         //menu bar is invisible by default on maemo
 294         menuBar()->setVisible(in_fullscreen);
 295 #endif
 296
 297         setWindowState(windowState() ^ Qt::WindowFullScreen);
 298         forceResizeDelayed();
 299 }
 300
 301 void MainWindow::showKeyMenu()
 302 {
 303         key_menu->exec();
 304         vnc_view->sendKeySequence(key_menu->getKeySequence());
 305 }
 306
 307 void MainWindow::showPreferences()
 308 {
 309         Preferences *p = new Preferences(this);
 310         p->exec();
 311         delete p;
 312
 313         reloadSettings();
 314 }
 315
 316 void MainWindow::reloadSettings()
 317 {
 318         QSettings settings;
 319 #ifdef Q_WS_MAEMO_5
 320         int rotation = settings.value("screen_rotation", 0).toInt();
 321         setAttribute(Qt::WA_Maemo5AutoOrientation, rotation == 0);
 322         setAttribute(Qt::WA_Maemo5LandscapeOrientation, rotation == 1);
 323         setAttribute(Qt::WA_Maemo5PortraitOrientation, rotation == 2);
 324 #endif
 325
 326         if(vnc_view)
 327                 vnc_view->reloadSettings();
 328 }
 329
 330 void MainWindow::resizeEvent(QResizeEvent *event)
 331 {
 332         QMainWindow::resizeEvent(event);
 333
 334         forceResize();
 335         if(vnc_view)
 336                 vnc_view->setZoomLevel(zoom_slider->value());
 337
 338 #ifdef Q_WS_MAEMO_5
 339         //hide zoom slider in portrait mode
 340         zoom_slider->setVisible(height() < width());
 341 #endif
 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 }