diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicswidget_p.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicswidget_p.cpp | 260 |
1 files changed, 134 insertions, 126 deletions
diff --git a/src/gui/graphicsview/qgraphicswidget_p.cpp b/src/gui/graphicsview/qgraphicswidget_p.cpp index 3b692c4..c9212f7 100644 --- a/src/gui/graphicsview/qgraphicswidget_p.cpp +++ b/src/gui/graphicsview/qgraphicswidget_p.cpp @@ -66,17 +66,20 @@ void QGraphicsWidgetPrivate::init(QGraphicsItem *parentItem, Qt::WindowFlags wFl isWidget = 1; // QGraphicsItem::isWidget() returns true. focusNext = focusPrev = q; focusPolicy = Qt::NoFocus; + + adjustWindowFlags(&wFlags); + windowFlags = wFlags; + q->setParentItem(parentItem); q->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred, QSizePolicy::DefaultType)); q->setGraphicsItem(q); resolveLayoutDirection(); - - if (!parentItem) - adjustWindowFlags(&wFlags); - windowFlags = wFlags; q->unsetWindowFrameMargins(); + q->setFlag(QGraphicsItem::ItemUsesExtendedStyleOption); + q->setFlag(QGraphicsItem::ItemSendsGeometryChanges); } + qreal QGraphicsWidgetPrivate::titleBarHeight(const QStyleOptionTitleBar &options) const { Q_Q(const QGraphicsWidget); @@ -89,56 +92,57 @@ qreal QGraphicsWidgetPrivate::titleBarHeight(const QStyleOptionTitleBar &options return (qreal)height; } -void QGraphicsWidgetPrivate::getLayoutItemMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const +/*! + \internal +*/ +QGraphicsWidgetPrivate::~QGraphicsWidgetPrivate() { - if (left) - *left = leftLayoutItemMargin; - if (top) - *top = topLayoutItemMargin; - if (right) - *right = rightLayoutItemMargin; - if (bottom) - *bottom = bottomLayoutItemMargin; + // Remove any lazily allocated data + delete[] margins; + delete[] windowFrameMargins; + delete windowData; } -void QGraphicsWidgetPrivate::setLayoutItemMargins(qreal left, qreal top, qreal right, qreal bottom) -{ - if (leftLayoutItemMargin == left - && topLayoutItemMargin == top - && rightLayoutItemMargin == right - && bottomLayoutItemMargin == bottom) - return; +/*! + \internal - Q_Q(QGraphicsWidget); - leftLayoutItemMargin = left; - topLayoutItemMargin = top; - rightLayoutItemMargin = right; - bottomLayoutItemMargin = bottom; - q->updateGeometry(); + Ensures that margins is allocated. + This function must be called before any dereferencing. +*/ +void QGraphicsWidgetPrivate::ensureMargins() const +{ + if (!margins) { + margins = new qreal[4]; + for (int i = 0; i < 4; ++i) + margins[i] = 0; + } } -void QGraphicsWidgetPrivate::setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt) +/*! + \internal + + Ensures that windowFrameMargins is allocated. + This function must be called before any dereferencing. +*/ +void QGraphicsWidgetPrivate::ensureWindowFrameMargins() const { - Q_Q(QGraphicsWidget); - QStyleOption myOpt; - if (!opt) { - q->initStyleOption(&myOpt); - myOpt.rect.setRect(0, 0, 32768, 32768); // arbitrary - opt = &myOpt; + if (!windowFrameMargins) { + windowFrameMargins = new qreal[4]; + for (int i = 0; i < 4; ++i) + windowFrameMargins[i] = 0; } +} - QRect liRect = q->style()->subElementRect(element, opt, /* q */ 0); - if (liRect.isValid()) { - leftLayoutItemMargin = (opt->rect.left() - liRect.left()); - topLayoutItemMargin = (opt->rect.top() - liRect.top()); - rightLayoutItemMargin = (liRect.right() - opt->rect.right()); - bottomLayoutItemMargin = (liRect.bottom() - opt->rect.bottom()); - } else { - leftLayoutItemMargin = 0; - topLayoutItemMargin = 0; - rightLayoutItemMargin = 0; - bottomLayoutItemMargin = 0; - } +/*! + \internal + + Ensures that windowData is allocated. + This function must be called before any dereferencing. +*/ +void QGraphicsWidgetPrivate::ensureWindowData() +{ + if (!windowData) + windowData = new WindowData; } void QGraphicsWidgetPrivate::setPalette_helper(const QPalette &palette) @@ -297,11 +301,12 @@ QFont QGraphicsWidgetPrivate::naturalWidgetFont() const void QGraphicsWidgetPrivate::initStyleOptionTitleBar(QStyleOptionTitleBar *option) { Q_Q(QGraphicsWidget); + ensureWindowData(); q->initStyleOption(option); option->rect.setHeight(titleBarHeight(*option)); option->titleBarFlags = windowFlags; option->subControls = QStyle::SC_TitleBarCloseButton | QStyle::SC_TitleBarLabel | QStyle::SC_TitleBarSysMenu; - option->activeSubControls = hoveredSubControl; + option->activeSubControls = windowData->hoveredSubControl; bool isActive = q->isActiveWindow(); if (isActive) { option->state |= QStyle::State_Active; @@ -313,7 +318,8 @@ void QGraphicsWidgetPrivate::initStyleOptionTitleBar(QStyleOptionTitleBar *optio } QFont windowTitleFont = QApplication::font("QWorkspaceTitleBar"); QRect textRect = q->style()->subControlRect(QStyle::CC_TitleBar, option, QStyle::SC_TitleBarLabel, 0); - option->text = QFontMetrics(windowTitleFont).elidedText(windowTitle, Qt::ElideRight, textRect.width()); + option->text = QFontMetrics(windowTitleFont).elidedText( + windowData->windowTitle, Qt::ElideRight, textRect.width()); } void QGraphicsWidgetPrivate::adjustWindowFlags(Qt::WindowFlags *flags) @@ -341,9 +347,10 @@ void QGraphicsWidgetPrivate::adjustWindowFlags(Qt::WindowFlags *flags) void QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent(QGraphicsSceneMouseEvent *event) { Q_Q(QGraphicsWidget); - if (grabbedSection != Qt::NoSection) { - if (grabbedSection == Qt::TitleBarArea) { - buttonSunken = false; + ensureWindowData(); + if (windowData->grabbedSection != Qt::NoSection) { + if (windowData->grabbedSection == Qt::TitleBarArea) { + windowData->buttonSunken = false; QStyleOptionTitleBar bar; initStyleOptionTitleBar(&bar); // make sure that the coordinates (rect and pos) we send to the style are positive. @@ -351,8 +358,10 @@ void QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent(QGraphicsSceneMouseEve bar.rect.moveTo(0,0); bar.rect.setHeight(q->style()->pixelMetric(QStyle::PM_TitleBarHeight, &bar)); QPointF pos = event->pos(); - pos.rx() += leftWindowFrameMargin; - pos.ry() += topWindowFrameMargin; + if (windowFrameMargins) { + pos.rx() += windowFrameMargins[Left]; + pos.ry() += windowFrameMargins[Top]; + } bar.subControls = QStyle::SC_TitleBarCloseButton; if (q->style()->subControlRect(QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarCloseButton, @@ -361,7 +370,7 @@ void QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent(QGraphicsSceneMouseEve } } if (!(static_cast<QGraphicsSceneMouseEvent *>(event)->buttons())) - grabbedSection = Qt::NoSection; + windowData->grabbedSection = Qt::NoSection; event->accept(); } } @@ -372,35 +381,16 @@ void QGraphicsWidgetPrivate::windowFrameMousePressEvent(QGraphicsSceneMouseEvent if (event->button() != Qt::LeftButton) return; - startGeometry = q->geometry(); - grabbedSection = q->windowFrameSectionAt(event->pos()); - switch (grabbedSection) { - case Qt::LeftSection: - case Qt::TopLeftSection: - mouseDelta = event->pos() - q->rect().topLeft(); - break; - case Qt::TopSection: - case Qt::TopRightSection: - mouseDelta = event->pos() - q->rect().topRight(); - break; - case Qt::RightSection: - case Qt::BottomRightSection: - mouseDelta = event->pos() - q->rect().bottomRight(); - break; - case Qt::BottomSection: - case Qt::BottomLeftSection: - mouseDelta = event->pos() - q->rect().bottomLeft(); - break; - case Qt::TitleBarArea: - if (hoveredSubControl == QStyle::SC_TitleBarCloseButton) { - buttonSunken = true; - q->update(); - } - break; - case Qt::NoSection: - break; + ensureWindowData(); + windowData->startGeometry = q->geometry(); + windowData->grabbedSection = q->windowFrameSectionAt(event->pos()); + ensureWindowData(); + if (windowData->grabbedSection == Qt::TitleBarArea + && windowData->hoveredSubControl == QStyle::SC_TitleBarCloseButton) { + windowData->buttonSunken = true; + q->update(); } - event->setAccepted(grabbedSection != Qt::NoSection); + event->setAccepted(windowData->grabbedSection != Qt::NoSection); } static void _q_boundGeometryToSizeConstraints(const QRectF &startGeometry, @@ -455,7 +445,8 @@ static void _q_boundGeometryToSizeConstraints(const QRectF &startGeometry, void QGraphicsWidgetPrivate::windowFrameMouseMoveEvent(QGraphicsSceneMouseEvent *event) { Q_Q(QGraphicsWidget); - if (!(event->buttons() & Qt::LeftButton) || hoveredSubControl != QStyle::SC_TitleBarLabel) + ensureWindowData(); + if (!(event->buttons() & Qt::LeftButton) || windowData->hoveredSubControl != QStyle::SC_TitleBarLabel) return; QLineF delta(q->mapFromScene(event->buttonDownScenePos(Qt::LeftButton)), event->pos()); @@ -464,49 +455,56 @@ void QGraphicsWidgetPrivate::windowFrameMouseMoveEvent(QGraphicsSceneMouseEvent QLineF parentYDelta(q->mapToParent(QPointF(0, delta.p1().y())), q->mapToParent(QPointF(0, delta.p2().y()))); QRectF newGeometry; - switch (grabbedSection) { + switch (windowData->grabbedSection) { case Qt::LeftSection: - newGeometry = QRectF(startGeometry.topLeft() + QPointF(parentXDelta.dx(), parentXDelta.dy()), - startGeometry.size() - QSizeF(delta.dx(), delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft() + + QPointF(parentXDelta.dx(), parentXDelta.dy()), + windowData->startGeometry.size() - QSizeF(delta.dx(), delta.dy())); break; case Qt::TopLeftSection: - newGeometry = QRectF(startGeometry.topLeft() + QPointF(parentDelta.dx(), parentDelta.dy()), - startGeometry.size() - QSizeF(delta.dx(), delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft() + + QPointF(parentDelta.dx(), parentDelta.dy()), + windowData->startGeometry.size() - QSizeF(delta.dx(), delta.dy())); break; case Qt::TopSection: - newGeometry = QRectF(startGeometry.topLeft() + QPointF(parentYDelta.dx(), parentYDelta.dy()), - startGeometry.size() - QSizeF(0, delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft() + + QPointF(parentYDelta.dx(), parentYDelta.dy()), + windowData->startGeometry.size() - QSizeF(0, delta.dy())); break; case Qt::TopRightSection: - newGeometry = QRectF(startGeometry.topLeft() + QPointF(parentYDelta.dx(), parentYDelta.dy()), - startGeometry.size() - QSizeF(-delta.dx(), delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft() + + QPointF(parentYDelta.dx(), parentYDelta.dy()), + windowData->startGeometry.size() - QSizeF(-delta.dx(), delta.dy())); break; case Qt::RightSection: - newGeometry = QRectF(startGeometry.topLeft(), - startGeometry.size() + QSizeF(delta.dx(), 0)); + newGeometry = QRectF(windowData->startGeometry.topLeft(), + windowData->startGeometry.size() + QSizeF(delta.dx(), 0)); break; case Qt::BottomRightSection: - newGeometry = QRectF(startGeometry.topLeft(), - startGeometry.size() + QSizeF(delta.dx(), delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft(), + windowData->startGeometry.size() + QSizeF(delta.dx(), delta.dy())); break; case Qt::BottomSection: - newGeometry = QRectF(startGeometry.topLeft(), - startGeometry.size() + QSizeF(0, delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft(), + windowData->startGeometry.size() + QSizeF(0, delta.dy())); break; case Qt::BottomLeftSection: - newGeometry = QRectF(startGeometry.topLeft() + QPointF(parentXDelta.dx(), parentXDelta.dy()), - startGeometry.size() - QSizeF(delta.dx(), -delta.dy())); + newGeometry = QRectF(windowData->startGeometry.topLeft() + + QPointF(parentXDelta.dx(), parentXDelta.dy()), + windowData->startGeometry.size() - QSizeF(delta.dx(), -delta.dy())); break; case Qt::TitleBarArea: - newGeometry = QRectF(startGeometry.topLeft() + QPointF(parentDelta.dx(), parentDelta.dy()), - startGeometry.size()); + newGeometry = QRectF(windowData->startGeometry.topLeft() + + QPointF(parentDelta.dx(), parentDelta.dy()), + windowData->startGeometry.size()); break; case Qt::NoSection: break; } - if (grabbedSection != Qt::NoSection) { - _q_boundGeometryToSizeConstraints(startGeometry, &newGeometry, grabbedSection, + if (windowData->grabbedSection != Qt::NoSection) { + _q_boundGeometryToSizeConstraints(windowData->startGeometry, &newGeometry, + windowData->grabbedSection, q->effectiveSizeHint(Qt::MinimumSize), q->effectiveSizeHint(Qt::MaximumSize)); q->setGeometry(newGeometry); @@ -519,21 +517,25 @@ void QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent if (!hasDecoration()) return; + ensureWindowData(); + if (q->rect().contains(event->pos())) { - if (buttonMouseOver || hoveredSubControl != QStyle::SC_None) + if (windowData->buttonMouseOver || windowData->hoveredSubControl != QStyle::SC_None) windowFrameHoverLeaveEvent(event); return; } - bool wasMouseOver = buttonMouseOver; - QRect oldButtonRect = buttonRect; - buttonRect = QRect(); - buttonMouseOver = false; + bool wasMouseOver = windowData->buttonMouseOver; + QRect oldButtonRect = windowData->buttonRect; + windowData->buttonRect = QRect(); + windowData->buttonMouseOver = false; QPointF pos = event->pos(); QStyleOptionTitleBar bar; // make sure that the coordinates (rect and pos) we send to the style are positive. - pos.rx() += leftWindowFrameMargin; - pos.ry() += topWindowFrameMargin; + if (windowFrameMargins) { + pos.rx() += windowFrameMargins[Left]; + pos.ry() += windowFrameMargins[Top]; + } initStyleOptionTitleBar(&bar); bar.rect = q->windowFrameRect().toRect(); bar.rect.moveTo(0,0); @@ -559,14 +561,17 @@ void QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent cursorShape = Qt::SizeVerCursor; break; case Qt::TitleBarArea: - buttonRect = q->style()->subControlRect(QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarCloseButton, 0); + windowData->buttonRect = q->style()->subControlRect( + QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarCloseButton, 0); #ifdef Q_WS_MAC // On mac we should hover if we are in the 'area' of the buttons - buttonRect |= q->style()->subControlRect(QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarMinButton, 0); - buttonRect |= q->style()->subControlRect(QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarMaxButton, 0); + windowData->buttonRect |= q->style()->subControlRect( + QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarMinButton, 0); + windowData->buttonRect |= q->style()->subControlRect( + QStyle::CC_TitleBar, &bar, QStyle::SC_TitleBarMaxButton, 0); #endif - if (buttonRect.contains(pos.toPoint())) - buttonMouseOver = true; + if (windowData->buttonRect.contains(pos.toPoint())) + windowData->buttonMouseOver = true; event->ignore(); break; default: @@ -578,15 +583,15 @@ void QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent q->setCursor(cursorShape); #endif // update buttons if we hover over them - hoveredSubControl = q->style()->hitTestComplexControl(QStyle::CC_TitleBar, &bar, pos.toPoint(), 0); - if (hoveredSubControl != QStyle::SC_TitleBarCloseButton) - hoveredSubControl = QStyle::SC_TitleBarLabel; + windowData->hoveredSubControl = q->style()->hitTestComplexControl(QStyle::CC_TitleBar, &bar, pos.toPoint(), 0); + if (windowData->hoveredSubControl != QStyle::SC_TitleBarCloseButton) + windowData->hoveredSubControl = QStyle::SC_TitleBarLabel; - if (buttonMouseOver != wasMouseOver) { + if (windowData->buttonMouseOver != wasMouseOver) { if (!oldButtonRect.isNull()) q->update(QRectF(oldButtonRect).translated(q->windowFrameRect().topLeft())); - if (!buttonRect.isNull()) - q->update(QRectF(buttonRect).translated(q->windowFrameRect().topLeft())); + if (!windowData->buttonRect.isNull()) + q->update(QRectF(windowData->buttonRect).translated(q->windowFrameRect().topLeft())); } } @@ -600,16 +605,19 @@ void QGraphicsWidgetPrivate::windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent q->unsetCursor(); #endif + ensureWindowData(); + bool needsUpdate = false; - if (hoveredSubControl == QStyle::SC_TitleBarCloseButton || buttonMouseOver) + if (windowData->hoveredSubControl == QStyle::SC_TitleBarCloseButton + || windowData->buttonMouseOver) needsUpdate = true; // update the hover state (of buttons etc...) - hoveredSubControl = QStyle::SC_None; - buttonMouseOver = false; - buttonRect = QRect(); + windowData->hoveredSubControl = QStyle::SC_None; + windowData->buttonMouseOver = false; + windowData->buttonRect = QRect(); if (needsUpdate) - q->update(buttonRect); + q->update(windowData->buttonRect); } } |