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42 #ifndef FULLSCREENEXITBUTTON_H
43 #define FULLSCREENEXITBUTTON_H
45 #include <QtGui/qtoolbutton.h>
46 #include <QtGui/qevent.h>
49 class FullScreenExitButton : public QToolButton
53 inline explicit FullScreenExitButton(QWidget *parent);
56 inline bool eventFilter(QObject *obj, QEvent *ev);
62 FullScreenExitButton::FullScreenExitButton(QWidget *parent)
67 // set the fullsize icon from Maemo's theme
68 setIcon(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"));
70 // ensure that our size is fixed to our ideal size
71 setFixedSize(sizeHint());
73 // set the background to 0.5 alpha
74 QPalette pal = palette();
75 QColor backgroundColor = pal.color(backgroundRole());
76 backgroundColor.setAlpha(128);
77 pal.setColor(backgroundRole(), backgroundColor);
80 // ensure that we're painting our background
81 setAutoFillBackground(true);
83 // hide after 4s of inactivity
84 connect(&timer, SIGNAL(timeout()), this, SLOT(hide()));
85 timer.setInterval(4000);
86 timer.setSingleShot(true);
88 // install an event filter to listen for the parent's events
89 parent->installEventFilter(this);
91 setVisible(false); //assuming we don't start in fullscreen
94 bool FullScreenExitButton::eventFilter(QObject *obj, QEvent *ev)
97 return QToolButton::eventFilter(obj, ev);
99 const QWidget *parent = parentWidget();
100 const bool isFullScreen = parent->windowState() & Qt::WindowFullScreen;
102 switch (ev->type()) {
103 case QEvent::MouseButtonPress:
104 case QEvent::MouseButtonRelease:
105 case QEvent::MouseMove:
106 case QEvent::HoverMove:
107 //fall through to show button
108 case QEvent::WindowStateChange:
109 setVisible(isFullScreen);
117 move(parent->width() - width(), parent->height() - height());
125 return QToolButton::eventFilter(obj, ev);