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42 #ifndef FULLSCREENEXITBUTTON_H
43 #define FULLSCREENEXITBUTTON_H
45 #include "mainwindow.h"
47 #include <QtGui/qtoolbutton.h>
48 #include <QtGui/qevent.h>
51 class FullScreenExitButton : public QToolButton
55 inline explicit FullScreenExitButton(MainWindow *parent);
58 inline bool eventFilter(QObject *obj, QEvent *ev);
64 FullScreenExitButton::FullScreenExitButton(MainWindow *parent)
69 // set the fullsize icon from Maemo's theme
70 setIcon(QIcon("/usr/share/icons/hicolor/48x48/hildon/general_fullsize.png"));
72 // ensure that our size is fixed to our ideal size
73 setFixedSize(sizeHint());
75 // set the background to 0.5 alpha
76 QPalette pal = palette();
77 QColor backgroundColor = pal.color(backgroundRole());
78 backgroundColor.setAlpha(128);
79 pal.setColor(backgroundRole(), backgroundColor);
82 // ensure that we're painting our background
83 setAutoFillBackground(true);
85 // when we're clicked, tell the parent to exit fullscreen
86 connect(this, SIGNAL(clicked()), parent, SLOT(toggleFullscreen()));
88 // hide after 4s of inactivity
89 connect(&timer, SIGNAL(timeout()), this, SLOT(hide()));
90 timer.setInterval(4000);
91 timer.setSingleShot(true);
93 // install an event filter to listen for the parent's events
94 parent->installEventFilter(this);
96 setVisible(false); //assuming we don't start in fullscreen
100 bool FullScreenExitButton::eventFilter(QObject *obj, QEvent *ev)
103 return QToolButton::eventFilter(obj, ev);
105 QWidget *parent = parentWidget();
106 bool isFullScreen = parent->windowState() & Qt::WindowFullScreen;
108 switch (ev->type()) {
109 case QEvent::MouseButtonPress:
110 case QEvent::MouseButtonRelease:
111 case QEvent::MouseMove:
112 case QEvent::HoverMove:
113 //fall through to show button
114 case QEvent::WindowStateChange:
115 setVisible(isFullScreen);
121 move(parent->width() - width(),
122 parent->height() - height());
130 return QToolButton::eventFilter(obj, ev);