From d4005e273d4285d0b6a9c60f712cfd12c311c3a3 Mon Sep 17 00:00:00 2001 From: Prasanth Ullattil Date: Fri, 11 Dec 2009 20:19:53 +0100 Subject: Focus frames in mac style gets clipped. The focus frame on mac is a separate widget. The parent of the focus frame is same as the parent of the widget who has the focus. So if there is not enough room for a focus frame between the parent and the widget, it gets clipped to the parent. This parent is now changed to the nearest (in hierarchy) top level, toolbar or scrollarea-viewport. A clip area is set on the focus frame widget based on the visible region of the widget. This reduces the chances of having clipped focus frames. It is always better to leave enough margin for widgets which shows focus frames. Task-number: 6567 Reviewed-by: Richard Moe Gustavsen Reviewed-by: Jan-Arve --- src/gui/widgets/qfocusframe.cpp | 91 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 80 insertions(+), 11 deletions(-) diff --git a/src/gui/widgets/qfocusframe.cpp b/src/gui/widgets/qfocusframe.cpp index e96f50d..02f76f1 100644 --- a/src/gui/widgets/qfocusframe.cpp +++ b/src/gui/widgets/qfocusframe.cpp @@ -53,11 +53,14 @@ 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(); @@ -66,10 +69,10 @@ public: void QFocusFramePrivate::update() { Q_Q(QFocusFrame); - q->setParent(widget->parentWidget()); + q->setParent(frameParent); updateSize(); if (q->parentWidget()->rect().intersects(q->geometry())) { - if (q->style()->styleHint(QStyle::SH_FocusFrame_AboveWidget, 0, q)) + if (showFrameAboveWidget) q->raise(); else q->stackUnder(widget); @@ -84,7 +87,10 @@ void QFocusFramePrivate::updateSize() Q_Q(QFocusFrame); int vmargin = q->style()->pixelMetric(QStyle::PM_FocusFrameVMargin), hmargin = q->style()->pixelMetric(QStyle::PM_FocusFrameHMargin); - QRect geom(widget->x()-hmargin, widget->y()-vmargin, + 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; @@ -176,14 +182,52 @@ void QFocusFrame::setWidget(QWidget *widget) { Q_D(QFocusFrame); - if(widget == d->widget) - return; - if(d->widget) - d->widget->removeEventFilter(this); - if(widget && !widget->isWindow() && widget->parentWidget()->windowType() != Qt::SubWindow) { + 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; - widget->installEventFilter(this); + 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; @@ -210,9 +254,15 @@ QFocusFrame::widget() const 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); } @@ -233,7 +283,13 @@ QFocusFrame::eventFilter(QObject *o, QEvent *e) hide(); break; case QEvent::ParentChange: - d->update(); + if (d->showFrameAboveWidget) { + QWidget *w = d->widget; + setWidget(0); + setWidget(w); + } else { + d->update(); + } break; case QEvent::Show: d->update(); @@ -254,6 +310,19 @@ QFocusFrame::eventFilter(QObject *o, QEvent *e) 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; } -- cgit v0.12