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Diffstat (limited to 'src/gui/widgets/qfocusframe.cpp')
| -rw-r--r-- | src/gui/widgets/qfocusframe.cpp | 339 |
1 files changed, 0 insertions, 339 deletions
diff --git a/src/gui/widgets/qfocusframe.cpp b/src/gui/widgets/qfocusframe.cpp deleted file mode 100644 index 6508c31b50..0000000000 --- a/src/gui/widgets/qfocusframe.cpp +++ /dev/null @@ -1,339 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qfocusframe.h" -#include "qstyle.h" -#include "qbitmap.h" -#include "qstylepainter.h" -#include "qstyleoption.h" -#include "qdebug.h" -#include <private/qwidget_p.h> - -QT_BEGIN_NAMESPACE - -class QFocusFramePrivate : public QWidgetPrivate -{ - Q_DECLARE_PUBLIC(QFocusFrame) - QWidget *widget; - QWidget *frameParent; - bool showFrameAboveWidget; -public: - QFocusFramePrivate() { - widget = 0; - frameParent = 0; - sendChildEvents = false; - showFrameAboveWidget = false; - } - void updateSize(); - void update(); -}; - -void QFocusFramePrivate::update() -{ - Q_Q(QFocusFrame); - q->setParent(frameParent); - updateSize(); - if (q->parentWidget()->rect().intersects(q->geometry())) { - if (showFrameAboveWidget) - q->raise(); - else - q->stackUnder(widget); - q->show(); - } else { - q->hide(); - } -} - -void QFocusFramePrivate::updateSize() -{ - Q_Q(QFocusFrame); - if (!widget) - return; - - int vmargin = q->style()->pixelMetric(QStyle::PM_FocusFrameVMargin), - hmargin = q->style()->pixelMetric(QStyle::PM_FocusFrameHMargin); - QPoint pos(widget->x(), widget->y()); - if (q->parentWidget() != widget->parentWidget()) - pos = widget->parentWidget()->mapTo(q->parentWidget(), pos); - QRect geom(pos.x()-hmargin, pos.y()-vmargin, - widget->width()+(hmargin*2), widget->height()+(vmargin*2)); - if(q->geometry() == geom) - return; - - q->setGeometry(geom); - QStyleHintReturnMask mask; - QStyleOption opt; - q->initStyleOption(&opt); - if (q->style()->styleHint(QStyle::SH_FocusFrame_Mask, &opt, q, &mask)) - q->setMask(mask.region); -} - -/*! - Initialize \a option with the values from this QFocusFrame. This method is useful - for subclasses when they need a QStyleOption, but don't want to fill - in all the information themselves. - - \sa QStyleOption::initFrom() -*/ -void QFocusFrame::initStyleOption(QStyleOption *option) const -{ - if (!option) - return; - - option->initFrom(this); -} - -/*! - \class QFocusFrame - \brief The QFocusFrame widget provides a focus frame which can be - outside of a widget's normal paintable area. - - \ingroup basicwidgets - - - Normally an application will not need to create its own - QFocusFrame as QStyle will handle this detail for - you. A style writer can optionally use a QFocusFrame to have a - focus area outside of the widget's paintable geometry. In this way - space need not be reserved for the widget to have focus but only - set on a QWidget with QFocusFrame::setWidget. It is, however, - legal to create your own QFocusFrame on a custom widget and set - its geometry manually via QWidget::setGeometry however you will - not get auto-placement when the focused widget changes size or - placement. -*/ - -/*! - Constructs a QFocusFrame. - - The focus frame will not monitor \a parent for updates but rather - can be placed manually or by using QFocusFrame::setWidget. A - QFocusFrame sets Qt::WA_NoChildEventsForParent attribute; as a - result the parent will not receive a QEvent::ChildInserted event, - this will make it possible to manually set the geometry of the - QFocusFrame inside of a QSplitter or other child event monitoring - widget. - - \sa QFocusFrame::setWidget() -*/ - -QFocusFrame::QFocusFrame(QWidget *parent) - : QWidget(*new QFocusFramePrivate, parent, 0) -{ - setAttribute(Qt::WA_TransparentForMouseEvents); - setFocusPolicy(Qt::NoFocus); - setAttribute(Qt::WA_NoChildEventsForParent, true); - setAttribute(Qt::WA_AcceptDrops, style()->styleHint(QStyle::SH_FocusFrame_AboveWidget, 0, this)); -} - -/*! - Destructor. -*/ - -QFocusFrame::~QFocusFrame() -{ -} - -/*! - QFocusFrame will track changes to \a widget and resize itself automatically. - If the monitored widget's parent changes, QFocusFrame will follow the widget - and place itself around the widget automatically. If the monitored widget is deleted, - QFocusFrame will set it to zero. - - \sa QFocusFrame::widget() -*/ - -void -QFocusFrame::setWidget(QWidget *widget) -{ - Q_D(QFocusFrame); - - if (style()->styleHint(QStyle::SH_FocusFrame_AboveWidget, 0, this)) - d->showFrameAboveWidget = true; - else - d->showFrameAboveWidget = false; - - if (widget == d->widget) - return; - if (d->widget) { - // Remove event filters from the widget hierarchy. - QWidget *p = d->widget; - do { - p->removeEventFilter(this); - if (!d->showFrameAboveWidget || p == d->frameParent) - break; - p = p->parentWidget(); - }while (p); - } - if (widget && !widget->isWindow() && widget->parentWidget()->windowType() != Qt::SubWindow) { - d->widget = widget; - d->widget->installEventFilter(this); - QWidget *p = widget->parentWidget(); - QWidget *prev = 0; - if (d->showFrameAboveWidget) { - // Find the right parent for the focus frame. - while (p) { - // Traverse the hirerarchy of the 'widget' for setting event filter. - // During this if come across toolbar or a top level, use that - // as the parent for the focus frame. If we find a scroll area - // use its viewport as the parent. - bool isScrollArea = false; - if (p->isWindow() || p->inherits("QToolBar") || (isScrollArea = p->inherits("QAbstractScrollArea"))) { - d->frameParent = p; - // The previous one in the hierarchy will be the viewport. - if (prev && isScrollArea) - d->frameParent = prev; - break; - } else { - p->installEventFilter(this); - prev = p; - p = p->parentWidget(); - } - } - } else { - d->frameParent = p; - } - d->update(); - } else { - d->widget = 0; - hide(); - } -} - -/*! - Returns the currently monitored widget for automatically resize and - update. - - \sa QFocusFrame::setWidget() -*/ - -QWidget * -QFocusFrame::widget() const -{ - Q_D(const QFocusFrame); - return d->widget; -} - - -/*! \reimp */ -void -QFocusFrame::paintEvent(QPaintEvent *) -{ - Q_D(QFocusFrame); - QStylePainter p(this); - QStyleOption option; - initStyleOption(&option); - int vmargin = style()->pixelMetric(QStyle::PM_FocusFrameVMargin); - int hmargin = style()->pixelMetric(QStyle::PM_FocusFrameHMargin); - QWidgetPrivate *wd = qt_widget_private(d->widget); - QRect rect = wd->clipRect().adjusted(0, 0, hmargin*2, vmargin*2); - p.setClipRect(rect); - p.drawControl(QStyle::CE_FocusFrame, option); -} - - -/*! \reimp */ -bool -QFocusFrame::eventFilter(QObject *o, QEvent *e) -{ - Q_D(QFocusFrame); - if(o == d->widget) { - switch(e->type()) { - case QEvent::Move: - case QEvent::Resize: - d->updateSize(); - break; - case QEvent::Hide: - case QEvent::StyleChange: - hide(); - break; - case QEvent::ParentChange: - if (d->showFrameAboveWidget) { - QWidget *w = d->widget; - setWidget(0); - setWidget(w); - } else { - d->update(); - } - break; - case QEvent::Show: - d->update(); - show(); - break; - case QEvent::PaletteChange: - setPalette(d->widget->palette()); - break; - case QEvent::ZOrderChange: - if (style()->styleHint(QStyle::SH_FocusFrame_AboveWidget, 0, this)) - raise(); - else - stackUnder(d->widget); - break; - case QEvent::Destroy: - setWidget(0); - break; - default: - break; - } - } else if (d->showFrameAboveWidget) { - // Handle changes in the parent widgets we are monitoring. - switch(e->type()) { - case QEvent::Move: - case QEvent::Resize: - d->updateSize(); - break; - case QEvent::ZOrderChange: - raise(); - break; - default: - break; - } - } - return false; -} - -/*! \reimp */ -bool QFocusFrame::event(QEvent *e) -{ - return QWidget::event(e); -} - -QT_END_NAMESPACE |