3 Copyright (C) 2010 Christian Pulvermacher
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.
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.
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.
19 #include "connectdialog.h"
21 #include "mainwindow.h"
22 #include "preferences.h"
23 #include "scrollarea.h"
29 #include <QDBusConnection>
31 #include <mce/mode-names.h>
32 #include <mce/dbus-names.h>
35 #include <X11/Xatom.h>
39 MainWindow::MainWindow(QString url, int quality, int listen_port, bool view_only):
42 scroll_area(new ScrollArea(this)),
43 input_toolbuttons(new QActionGroup(this)),
46 setWindowTitle("Presence VNC");
48 setContextMenuPolicy(Qt::NoContextMenu);
49 setAttribute(Qt::WA_Maemo5StackedWindow);
52 migrateConfiguration();
55 toolbar = new QToolBar(0);
56 key_menu_button = input_toolbuttons->addAction(toolbar->addAction(QChar(0x2026), this, SLOT(showKeyMenu()))); //"..." button
57 key_menu_button->setCheckable(true); //used to indicate wether a modifier key is still pressed
58 input_toolbuttons->addAction(toolbar->addAction(tr("Tab"), this, SLOT(sendTab())));
59 input_toolbuttons->addAction(toolbar->addAction(tr("Esc"), this, SLOT(sendEsc())));
60 input_toolbuttons->addAction(toolbar->addAction(tr("PgUp"), this, SLOT(sendPgUp())));
61 input_toolbuttons->addAction(toolbar->addAction(tr("PgDn"), this, SLOT(sendPgDn())));
63 input_toolbuttons->addAction(toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/chat_enter.png"), "", this, SLOT(sendReturn())));
64 input_toolbuttons->addAction(toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/control_keyboard.png"), "", this, SLOT(showInputPanel())));
68 zoom_slider = new QSlider(Qt::Horizontal, 0);
69 zoom_slider->setRange(0, 100);
70 connect(zoom_slider, SIGNAL(valueChanged(int)),
71 this, SLOT(setZoomLevel(int)));
72 connect(zoom_slider, SIGNAL(sliderReleased()),
73 this, SLOT(zoomSliderReleased()));
74 zoom_slider->setValue(settings.value("zoomlevel", 95).toInt());
75 toolbar->addWidget(zoom_slider);
78 toolbar->addAction(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"), "", this, SLOT(toggleFullscreen()));
80 toolbar->addAction(tr("Toggle Fullscreen"), this, SLOT(toggleFullscreen()));
83 toolbar->setVisible(settings.value("show_toolbar", true).toBool());
84 toolbar->setEnabled(false);
87 QAction *connect_action = new QAction(tr("Connect"), this);
88 disconnect_action = new QAction(tr("Disconnect"), this);
89 show_toolbar = new QAction(tr("Show toolbar"), this);
90 show_toolbar->setCheckable(true);
91 show_toolbar->setChecked(settings.value("show_toolbar", true).toBool());
92 QAction *pref_action = new QAction(tr("Preferences"), this);
93 QAction *about_action = new QAction(tr("About"), this);
96 menuBar()->addAction(connect_action);
97 menuBar()->addAction(disconnect_action);
98 menuBar()->addAction(show_toolbar);
99 menuBar()->addAction(pref_action);
100 menuBar()->addAction(about_action);
102 QMenu* session_menu = menuBar()->addMenu(tr("&Session"));
103 session_menu->addAction(connect_action);
104 session_menu->addAction(disconnect_action);
105 session_menu->addSeparator();
106 session_menu->addAction(pref_action);
107 session_menu->addSeparator();
108 session_menu->addAction(tr("&Quit"), this, SLOT(close()));
110 QMenu* view_menu = menuBar()->addMenu(tr("&View"));
111 view_menu->addAction(show_toolbar);
113 QMenu* help_menu = menuBar()->addMenu(tr("&Help"));
114 help_menu->addAction(about_action);
117 connect(about_action, SIGNAL(triggered()),
118 this, SLOT(about()));
119 connect(pref_action, SIGNAL(triggered()),
120 this, SLOT(showPreferences()));
121 connect(connect_action, SIGNAL(triggered()),
122 this, SLOT(showConnectDialog()));
123 connect(disconnect_action, SIGNAL(triggered()),
124 this, SLOT(disconnectFromHost()));
125 connect(show_toolbar, SIGNAL(toggled(bool)),
126 toolbar, SLOT(setVisible(bool)));
127 connect(show_toolbar, SIGNAL(toggled(bool)),
128 this, SLOT(updateScreenSpaceDelayed()));
130 QDBusConnection::systemBus().connect("", MCE_SIGNAL_PATH, MCE_SIGNAL_IF, MCE_DISPLAY_SIG,
131 this, SLOT(displayStateChanged(QString)));
134 setCentralWidget(scroll_area);
136 connect(scroll_area, SIGNAL(fullscreenButtonClicked()),
137 this, SLOT(toggleFullscreen()));
142 if(url.isEmpty() and listen_port == 0) {
143 disconnect_action->setEnabled(false);
146 connectToHost(url, quality, listen_port, view_only);
150 void MainWindow::grabZoomKeys(bool grab)
153 unsigned long val = (grab)?1:0;
154 Atom atom = XInternAtom(QX11Info::display(), "_HILDON_ZOOM_KEY_ATOM", False);
156 qWarning("Couldn't get zoom key atom");
159 XChangeProperty(QX11Info::display(), winId(), atom, XA_INTEGER,
160 32, PropModeReplace, reinterpret_cast<unsigned char *>(&val), 1);
164 void MainWindow::closeEvent(QCloseEvent*)
169 settings.setValue("show_toolbar", show_toolbar->isChecked());
170 settings.setValue("zoomlevel", zoom_slider->value());
175 disconnectFromHost();
178 void MainWindow::about()
180 QMessageBox::about(this, tr("About Presence VNC"),
181 tr("<center><h1>Presence VNC 0.9</h1>\
182 <p>A touchscreen friendly VNC client</p>\
183 <p><a href=\"http://presencevnc.garage.maemo.org/\">http://presencevnc.garage.maemo.org/</a></p></center>\
184 <small><p>©2010-2012 Christian Pulvermacher <pulvermacher@gmx.de><br />\
185 Based on KRDC, © 2007-2008 Urs Wolfer<br />\
186 and LibVNCServer, © 2001-2003 Johannes E. Schindelin</p>\
187 <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>"));
190 void MainWindow::showConnectDialog()
192 ConnectDialog *connect_dialog = new ConnectDialog(this);
193 connect(connect_dialog, SIGNAL(connectToHost(QString, int, int, bool)),
194 this, SLOT(connectToHost(QString, int, int, bool)));
195 connect_dialog->exec();
196 //ConnectDialog cleans up after itself
199 void MainWindow::connectToHost(QString url, int quality, int listen_port, bool view_only)
201 disconnectFromHost();
203 vnc_view = new VncView(this, url, RemoteView::Quality(quality), listen_port);
204 vnc_view->setViewOnly(view_only);
206 connect(vnc_view, SIGNAL(statusChanged(RemoteView::RemoteStatus)),
207 this, SLOT(statusChanged(RemoteView::RemoteStatus)));
208 connect(vnc_view, SIGNAL(errorMessage(QString, QString)),
209 scroll_area, SLOT(showMessage(QString, QString)));
210 scroll_area->setWidget(vnc_view);
212 setWindowTitle(QString("Presence VNC - %1").arg(vnc_view->host()) + (view_only?tr(" [View Only]"):""));
214 disconnect_action->setEnabled(true);
218 key_menu = new KeyMenu(this);
221 void MainWindow::disconnectFromHost()
226 setWindowTitle("Presence VNC");
227 disconnect_action->setEnabled(false);
228 toolbar->setEnabled(false);
229 scroll_area->setWidget(0);
235 void MainWindow::statusChanged(RemoteView::RemoteStatus status)
237 static RemoteView::RemoteStatus old_status = RemoteView::Disconnected;
240 case RemoteView::Connecting:
242 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
245 case RemoteView::Connected:
247 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
249 toolbar->setEnabled(true);
251 //disable key input buttons in view only mode
252 input_toolbuttons->setEnabled(!vnc_view->viewOnly());
254 vnc_view->setZoomLevel(zoom_slider->value());
255 vnc_view->useFastTransformations(false);
258 case RemoteView::Disconnecting:
259 if(old_status == RemoteView::Disconnected) //Disconnecting also occurs while connecting, so check last state
262 if(disconnect_action->isEnabled()) //don't show when manually disconnecting
263 scroll_area->showMessage(tr("Connection lost"));
266 scroll_area->setWidget(0);
268 setWindowTitle("Presence VNC");
269 disconnect_action->setEnabled(false);
270 toolbar->setEnabled(false);
272 //exit fullscreen mode
273 if(windowState() & Qt::WindowFullScreen)
276 case RemoteView::Disconnected:
278 setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
280 if(old_status == RemoteView::Disconnecting) {
281 scroll_area->setWidget(0); //remove widget
284 default: //avoid compiler warnings
291 //updates available screen space for current zoom level
292 //necessary when rotating, showing fullscreen, etc.
293 void MainWindow::updateScreenSpace()
296 vnc_view->setZoomLevel();
300 void MainWindow::updateScreenSpaceDelayed()
302 QTimer::singleShot(500, this, SLOT(updateScreenSpace()));
305 void MainWindow::toggleFullscreen()
307 bool in_fullscreen = windowState() & Qt::WindowFullScreen;
309 //hide menu/toolbar in fullscreen (new state is !in_fullscreen)
310 toolbar->setVisible(show_toolbar->isChecked() and in_fullscreen);
313 //menu bar is invisible by default on maemo
314 menuBar()->setVisible(in_fullscreen);
317 setWindowState(windowState() ^ Qt::WindowFullScreen);
318 updateScreenSpaceDelayed();
321 void MainWindow::showKeyMenu()
328 vnc_view->sendKeySequence(key_menu->getKeySequence());
329 key_menu_button->setChecked(key_menu->isAltChecked() or key_menu->isWinChecked());
332 void MainWindow::showPreferences()
334 Preferences *p = new Preferences(this);
341 void MainWindow::reloadSettings()
344 zoom_to_cursor = settings.value("zoom_to_cursor", true).toBool();
347 int rotation = settings.value("screen_rotation", 0).toInt();
348 setAttribute(Qt::WA_Maemo5AutoOrientation, rotation == 0);
349 setAttribute(Qt::WA_Maemo5LandscapeOrientation, rotation == 1);
350 setAttribute(Qt::WA_Maemo5PortraitOrientation, rotation == 2);
354 vnc_view->reloadSettings();
357 void MainWindow::resizeEvent(QResizeEvent *event)
359 QMainWindow::resizeEvent(event);
363 vnc_view->setZoomLevel(zoom_slider->value());
366 //in portrait mode, show only zoom slider and fullscreen button
367 //(opening HW keyboard or OSK will return to landscape)
368 const bool portrait = height() > width();
369 for(int i = 0; i < 7; i++)
370 toolbar->actions()[i]->setVisible(!portrait);
374 void MainWindow::showInputPanel()
377 //TODO: when hardware keyboard is open, this will only cause the IM to mess up 'real' key events
378 vnc_view->setAttribute(Qt::WA_InputMethodEnabled, true);
379 vnc_view->setInputMethodHints(Qt::ImhNoAutoUppercase); //without this, IM starts with caps lock
381 QEvent event(QEvent::RequestSoftwareInputPanel);
382 QApplication::sendEvent(vnc_view, &event);
386 void MainWindow::setZoomLevel(int level)
391 const qreal old_factor = vnc_view->zoomFactor();
392 QPoint center = vnc_view->visibleRegion().boundingRect().center();
394 vnc_view->setZoomLevel(level);
396 const qreal new_factor = vnc_view->zoomFactor();
398 //scroll to center, if zoom level actually changed
399 if(old_factor != new_factor) {
401 center = new_factor * vnc_view->cursorPosition();
402 else //zoom to center of visible region
403 center = center * (double(new_factor)/old_factor);
405 scroll_area->ensureVisible(center.x(), center.y(),
406 vnc_view->visibleRegion().boundingRect().width()/2,
407 vnc_view->visibleRegion().boundingRect().height()/2);
409 vnc_view->useFastTransformations(zoom_slider->isSliderDown());
412 scroll_area->showMessage(tr("Zoom: %1\%").arg(qRound(100*new_factor)));
416 void MainWindow::zoomSliderReleased()
419 if(!time.isNull() and time.elapsed() < 500) //double clicked
420 zoom_slider->setValue(95); //100%
424 //stopped zooming, reenable high quality
425 vnc_view->useFastTransformations(false);
428 void MainWindow::displayStateChanged(QString state)
430 const bool display_on = (state != "off");
432 vnc_view->setDisplayOff(!display_on);
435 void MainWindow::sendTab() { vnc_view->sendKey(Qt::Key_Tab); }
436 void MainWindow::sendEsc() { vnc_view->sendKey(Qt::Key_Escape); }
437 void MainWindow::sendPgUp() { vnc_view->sendKey(Qt::Key_PageUp); }
438 void MainWindow::sendPgDn() { vnc_view->sendKey(Qt::Key_PageDown); }
439 void MainWindow::sendReturn() { vnc_view->sendKey(Qt::Key_Return); }