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#include "qwsembedwidget.h" | |
#ifndef QT_NO_QWSEMBEDWIDGET | |
#include <qwsdisplay_qws.h> | |
#include <private/qwidget_p.h> | |
#include <private/qwsdisplay_qws_p.h> | |
#include <private/qwscommand_qws_p.h> | |
QT_BEGIN_NAMESPACE | |
// TODO: | |
// Must remove window decorations from the embedded window | |
// Focus In/Out, Keyboard/Mouse... | |
// | |
// BUG: what if my parent change parent? | |
class QWSEmbedWidgetPrivate : public QWidgetPrivate | |
{ | |
Q_DECLARE_PUBLIC(QWSEmbedWidget); | |
public: | |
QWSEmbedWidgetPrivate(int winId); | |
void updateWindow(); | |
void resize(const QSize &size); | |
QWidget *window; | |
WId windowId; | |
WId embeddedId; | |
}; | |
QWSEmbedWidgetPrivate::QWSEmbedWidgetPrivate(int winId) | |
: window(0), windowId(0), embeddedId(winId) | |
{ | |
} | |
void QWSEmbedWidgetPrivate::updateWindow() | |
{ | |
Q_Q(QWSEmbedWidget); | |
QWidget *win = q->window(); | |
if (win == window) | |
return; | |
if (window) { | |
window->removeEventFilter(q); | |
QWSEmbedCommand command; | |
command.setData(windowId, embeddedId, QWSEmbedEvent::StopEmbed); | |
QWSDisplay::instance()->d->sendCommand(command); | |
} | |
window = win; | |
if (!window) | |
return; | |
windowId = window->winId(); | |
QWSEmbedCommand command; | |
command.setData(windowId, embeddedId, QWSEmbedEvent::StartEmbed); | |
QWSDisplay::instance()->d->sendCommand(command); | |
window->installEventFilter(q); | |
q->installEventFilter(q); | |
} | |
void QWSEmbedWidgetPrivate::resize(const QSize &size) | |
{ | |
if (!window) | |
return; | |
Q_Q(QWSEmbedWidget); | |
QWSEmbedCommand command; | |
command.setData(windowId, embeddedId, QWSEmbedEvent::Region, | |
QRect(q->mapToGlobal(QPoint(0, 0)), size)); | |
QWSDisplay::instance()->d->sendCommand(command); | |
} | |
/*! | |
\class QWSEmbedWidget | |
\since 4.2 | |
\ingroup qws | |
\ingroup advanced | |
\brief The QWSEmbedWidget class enables embedded top-level widgets | |
in Qt for Embedded Linux. | |
Note that this class is only available in \l{Qt for Embedded Linux}. | |
QWSEmbedWidget inherits QWidget and acts as any other widget, but | |
in addition it is capable of embedding another top-level widget. | |
An example of use is when painting directly onto the screen using | |
the QDirectPainter class. Then the reserved region can be embedded | |
into an instance of the QWSEmbedWidget class, providing for | |
example event handling and size policies for the reserved region. | |
All that is required to embed a top-level widget is its window ID. | |
\sa {Qt for Embedded Linux Architecture} | |
*/ | |
/*! | |
Constructs a widget with the given \a parent, embedding the widget | |
identified by the given window \a id. | |
*/ | |
QWSEmbedWidget::QWSEmbedWidget(WId id, QWidget *parent) | |
: QWidget(*new QWSEmbedWidgetPrivate(id), parent, 0) | |
{ | |
Q_D(QWSEmbedWidget); | |
d->updateWindow(); | |
} | |
/*! | |
Destroys this widget. | |
*/ | |
QWSEmbedWidget::~QWSEmbedWidget() | |
{ | |
Q_D(QWSEmbedWidget); | |
if (!d->window) | |
return; | |
QWSEmbedCommand command; | |
command.setData(d->windowId, d->embeddedId, QWSEmbedEvent::StopEmbed); | |
QWSDisplay::instance()->d->sendCommand(command); | |
} | |
/*! | |
\reimp | |
*/ | |
bool QWSEmbedWidget::eventFilter(QObject *object, QEvent *event) | |
{ | |
Q_D(QWSEmbedWidget); | |
if (object == d->window && event->type() == QEvent::Move) | |
resizeEvent(0); | |
else if (object == this && event->type() == QEvent::Hide) | |
d->resize(QSize()); | |
return QWidget::eventFilter(object, event); | |
} | |
/*! | |
\reimp | |
*/ | |
void QWSEmbedWidget::changeEvent(QEvent *event) | |
{ | |
Q_D(QWSEmbedWidget); | |
if (event->type() == QEvent::ParentChange) | |
d->updateWindow(); | |
} | |
/*! | |
\reimp | |
*/ | |
void QWSEmbedWidget::resizeEvent(QResizeEvent*) | |
{ | |
Q_D(QWSEmbedWidget); | |
d->resize(rect().size()); | |
} | |
/*! | |
\reimp | |
*/ | |
void QWSEmbedWidget::moveEvent(QMoveEvent*) | |
{ | |
resizeEvent(0); | |
} | |
/*! | |
\reimp | |
*/ | |
void QWSEmbedWidget::hideEvent(QHideEvent*) | |
{ | |
Q_D(QWSEmbedWidget); | |
d->resize(QSize()); | |
} | |
/*! | |
\reimp | |
*/ | |
void QWSEmbedWidget::showEvent(QShowEvent*) | |
{ | |
Q_D(QWSEmbedWidget); | |
d->resize(rect().size()); | |
} | |
QT_END_NAMESPACE | |
#endif // QT_NO_QWSEMBEDWIDGET |