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Diffstat (limited to 'src/gui/graphicsview/qgraphicswidget_p.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicswidget_p.cpp | 910 |
1 files changed, 0 insertions, 910 deletions
diff --git a/src/gui/graphicsview/qgraphicswidget_p.cpp b/src/gui/graphicsview/qgraphicswidget_p.cpp deleted file mode 100644 index 45800551cb..0000000000 --- a/src/gui/graphicsview/qgraphicswidget_p.cpp +++ /dev/null @@ -1,910 +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 "qglobal.h" - -#ifndef QT_NO_GRAPHICSVIEW - -#include <QtCore/qdebug.h> -#include <QtCore/qnumeric.h> -#include "qgraphicswidget_p.h" -#include "qgraphicslayoutitem_p.h" -#include "qgraphicslayout.h" -#include "qgraphicsscene_p.h" -#include <QtGui/qapplication.h> -#include <QtGui/qgraphicsscene.h> -#include <QtGui/qstyleoption.h> -#include <QtGui/QStyleOptionTitleBar> -#include <QtGui/QGraphicsSceneMouseEvent> -#if defined(Q_WS_MAC) && !defined(QT_NO_STYLE_MAC) -# include <QMacStyle> -#endif - -QT_BEGIN_NAMESPACE - -void QGraphicsWidgetPrivate::init(QGraphicsItem *parentItem, Qt::WindowFlags wFlags) -{ - Q_Q(QGraphicsWidget); - - attributes = 0; - isWidget = 1; // QGraphicsItem::isWidget() returns true. - focusNext = focusPrev = q; - focusPolicy = Qt::NoFocus; - - adjustWindowFlags(&wFlags); - windowFlags = wFlags; - - if (parentItem) - setParentItemHelper(parentItem, 0, 0); - - q->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred, QSizePolicy::DefaultType)); - q->setGraphicsItem(q); - - resolveLayoutDirection(); - q->unsetWindowFrameMargins(); - flags |= QGraphicsItem::ItemUsesExtendedStyleOption; - flags |= QGraphicsItem::ItemSendsGeometryChanges; - if (windowFlags & Qt::Window) - flags |= QGraphicsItem::ItemIsPanel; -} - -qreal QGraphicsWidgetPrivate::titleBarHeight(const QStyleOptionTitleBar &options) const -{ - Q_Q(const QGraphicsWidget); - int height = q->style()->pixelMetric(QStyle::PM_TitleBarHeight, &options); -#if defined(Q_WS_MAC) && !defined(QT_NO_STYLE_MAC) - if (qobject_cast<QMacStyle*>(q->style())) { - height -=4; - } -#endif - return (qreal)height; -} - -/*! - \internal -*/ -QGraphicsWidgetPrivate::~QGraphicsWidgetPrivate() -{ - // Remove any lazily allocated data - delete[] margins; - delete[] windowFrameMargins; - delete windowData; -} - -/*! - \internal - - 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; - } -} - -/*! - \internal - - Ensures that windowFrameMargins is allocated. - This function must be called before any dereferencing. -*/ -void QGraphicsWidgetPrivate::ensureWindowFrameMargins() const -{ - if (!windowFrameMargins) { - windowFrameMargins = new qreal[4]; - for (int i = 0; i < 4; ++i) - windowFrameMargins[i] = 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) -{ - if (this->palette == palette && this->palette.resolve() == palette.resolve()) - return; - updatePalette(palette); -} - -void QGraphicsWidgetPrivate::resolvePalette(uint inheritedMask) -{ - inheritedPaletteResolveMask = inheritedMask; - QPalette naturalPalette = naturalWidgetPalette(); - QPalette resolvedPalette = palette.resolve(naturalPalette); - updatePalette(resolvedPalette); -} - -void QGraphicsWidgetPrivate::updatePalette(const QPalette &palette) -{ - Q_Q(QGraphicsWidget); - // Update local palette setting. - this->palette = palette; - - // Calculate new mask. - if (q->isWindow() && !q->testAttribute(Qt::WA_WindowPropagation)) - inheritedPaletteResolveMask = 0; - int mask = palette.resolve() | inheritedPaletteResolveMask; - - // Propagate to children. - for (int i = 0; i < children.size(); ++i) { - QGraphicsItem *item = children.at(i); - if (item->isWidget()) { - QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item); - if (!w->isWindow() || w->testAttribute(Qt::WA_WindowPropagation)) - w->d_func()->resolvePalette(mask); - } else { - item->d_ptr->resolvePalette(mask); - } - } - - // Notify change. - QEvent event(QEvent::PaletteChange); - QApplication::sendEvent(q, &event); -} - -void QGraphicsWidgetPrivate::setLayoutDirection_helper(Qt::LayoutDirection direction) -{ - Q_Q(QGraphicsWidget); - if ((direction == Qt::RightToLeft) == (testAttribute(Qt::WA_RightToLeft))) - return; - q->setAttribute(Qt::WA_RightToLeft, (direction == Qt::RightToLeft)); - - // Propagate this change to all children. - for (int i = 0; i < children.size(); ++i) { - QGraphicsItem *item = children.at(i); - if (item->isWidget()) { - QGraphicsWidget *widget = static_cast<QGraphicsWidget *>(item); - if (widget->parentWidget() && !widget->testAttribute(Qt::WA_SetLayoutDirection)) - widget->d_func()->setLayoutDirection_helper(direction); - } - } - - // Send the notification event to this widget item. - QEvent e(QEvent::LayoutDirectionChange); - QApplication::sendEvent(q, &e); -} - -void QGraphicsWidgetPrivate::resolveLayoutDirection() -{ - Q_Q(QGraphicsWidget); - if (q->testAttribute(Qt::WA_SetLayoutDirection)) { - return; - } - if (QGraphicsWidget *parentWidget = q->parentWidget()) { - setLayoutDirection_helper(parentWidget->layoutDirection()); - } else if (scene) { - // ### shouldn't the scene have a layoutdirection really? how does - // ### QGraphicsWidget get changes from QApplication::layoutDirection? - setLayoutDirection_helper(QApplication::layoutDirection()); - } else { - setLayoutDirection_helper(QApplication::layoutDirection()); - } -} - -QPalette QGraphicsWidgetPrivate::naturalWidgetPalette() const -{ - Q_Q(const QGraphicsWidget); - QPalette palette; - if (QGraphicsWidget *parent = q->parentWidget()) { - palette = parent->palette(); - } else if (scene) { - palette = scene->palette(); - } - palette.resolve(0); - return palette; -} - -void QGraphicsWidgetPrivate::setFont_helper(const QFont &font) -{ - if (this->font == font && this->font.resolve() == font.resolve()) - return; - updateFont(font); -} - -void QGraphicsWidgetPrivate::resolveFont(uint inheritedMask) -{ - Q_Q(QGraphicsWidget); - inheritedFontResolveMask = inheritedMask; - if (QGraphicsWidget *p = q->parentWidget()) - inheritedFontResolveMask |= p->d_func()->inheritedFontResolveMask; - QFont naturalFont = naturalWidgetFont(); - QFont resolvedFont = font.resolve(naturalFont); - updateFont(resolvedFont); -} - -void QGraphicsWidgetPrivate::updateFont(const QFont &font) -{ - Q_Q(QGraphicsWidget); - // Update the local font setting. - this->font = font; - - // Calculate new mask. - if (q->isWindow() && !q->testAttribute(Qt::WA_WindowPropagation)) - inheritedFontResolveMask = 0; - int mask = font.resolve() | inheritedFontResolveMask; - - // Propagate to children. - for (int i = 0; i < children.size(); ++i) { - QGraphicsItem *item = children.at(i); - if (item->isWidget()) { - QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item); - if (!w->isWindow() || w->testAttribute(Qt::WA_WindowPropagation)) - w->d_func()->resolveFont(mask); - } else { - item->d_ptr->resolveFont(mask); - } - } - - if (!polished) - return; - // Notify change. - QEvent event(QEvent::FontChange); - QApplication::sendEvent(q, &event); -} - -QFont QGraphicsWidgetPrivate::naturalWidgetFont() const -{ - Q_Q(const QGraphicsWidget); - QFont naturalFont; // ### no application font support - if (QGraphicsWidget *parent = q->parentWidget()) { - naturalFont = parent->font(); - } else if (scene) { - naturalFont = scene->font(); - } - naturalFont.resolve(0); - return naturalFont; -} - -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 = windowData->hoveredSubControl; - bool isActive = q->isActiveWindow(); - if (isActive) { - option->state |= QStyle::State_Active; - option->titleBarState = Qt::WindowActive; - option->titleBarState |= QStyle::State_Active; - } else { - option->state &= ~QStyle::State_Active; - option->titleBarState = Qt::WindowNoState; - } - QFont windowTitleFont = QApplication::font("QWorkspaceTitleBar"); - QRect textRect = q->style()->subControlRect(QStyle::CC_TitleBar, option, QStyle::SC_TitleBarLabel, 0); - option->text = QFontMetrics(windowTitleFont).elidedText( - windowData->windowTitle, Qt::ElideRight, textRect.width()); -} - -void QGraphicsWidgetPrivate::adjustWindowFlags(Qt::WindowFlags *flags) -{ - bool customize = (*flags & (Qt::CustomizeWindowHint - | Qt::FramelessWindowHint - | Qt::WindowTitleHint - | Qt::WindowSystemMenuHint - | Qt::WindowMinimizeButtonHint - | Qt::WindowMaximizeButtonHint - | Qt::WindowContextHelpButtonHint)); - - uint type = (*flags & Qt::WindowType_Mask); - if (customize) - ; - else if (type == Qt::Dialog || type == Qt::Sheet) - *flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowContextHelpButtonHint; - else if (type == Qt::Tool) - *flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint; - else if (type == Qt::Window || type == Qt::SubWindow) - *flags |= Qt::WindowTitleHint | Qt::WindowSystemMenuHint - | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint; -} - -void QGraphicsWidgetPrivate::windowFrameMouseReleaseEvent(QGraphicsSceneMouseEvent *event) -{ - Q_Q(QGraphicsWidget); - 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. - bar.rect = q->windowFrameRect().toRect(); - bar.rect.moveTo(0,0); - bar.rect.setHeight(q->style()->pixelMetric(QStyle::PM_TitleBarHeight, &bar)); - QPointF pos = event->pos(); - 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, - event->widget()).contains(pos.toPoint())) { - q->close(); - } - } - if (!(static_cast<QGraphicsSceneMouseEvent *>(event)->buttons())) - windowData->grabbedSection = Qt::NoSection; - event->accept(); - } -} - -void QGraphicsWidgetPrivate::windowFrameMousePressEvent(QGraphicsSceneMouseEvent *event) -{ - Q_Q(QGraphicsWidget); - if (event->button() != Qt::LeftButton) - return; - - 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(windowData->grabbedSection != Qt::NoSection); -} - -/*! - Used to calculate the - Precondition: - \a widget should support either hfw or wfh - - If \a heightForWidth is set to false, this function will query the width for height - instead. \a width will then be interpreted as height, \a minh and \a maxh will be interpreted - as minimum width and maximum width. - */ -static qreal minimumHeightForWidth(qreal width, qreal minh, qreal maxh, - const QGraphicsWidget *widget, - bool heightForWidth = true) -{ - qreal minimumHeightForWidth = -1; - const bool hasHFW = QGraphicsLayoutItemPrivate::get(widget)->hasHeightForWidth(); - if (hasHFW == heightForWidth) { - minimumHeightForWidth = hasHFW - ? widget->effectiveSizeHint(Qt::MinimumSize, QSizeF(width, -1)).height() - : widget->effectiveSizeHint(Qt::MinimumSize, QSizeF(-1, width)).width(); //"width" is here height! - } else { - // widthForHeight - const qreal constraint = width; - while (maxh - minh > 0.1) { - qreal middle = minh + (maxh - minh)/2; - // ### really bad, if we are a widget with a layout it will call - // layout->effectiveSizeHint(Qt::MiniumumSize), which again will call - // sizeHint three times because of how the cache works - qreal hfw = hasHFW - ? widget->effectiveSizeHint(Qt::MinimumSize, QSizeF(middle, -1)).height() - : widget->effectiveSizeHint(Qt::MinimumSize, QSizeF(-1, middle)).width(); - if (hfw > constraint) { - minh = middle; - } else if (hfw <= constraint) { - maxh = middle; - } - } - minimumHeightForWidth = maxh; - } - return minimumHeightForWidth; -} - -static qreal minimumWidthForHeight(qreal height, qreal minw, qreal maxw, - const QGraphicsWidget *widget) -{ - return minimumHeightForWidth(height, minw, maxw, widget, false); -} - -static QSizeF closestAcceptableSize(const QSizeF &proposed, - const QGraphicsWidget *widget) -{ - const QSizeF current = widget->size(); - - qreal minw = proposed.width(); - qreal maxw = current.width(); - qreal minh = proposed.height(); - qreal maxh = current.height(); - - qreal middlew = maxw; - qreal middleh = maxh; - qreal min_hfw; - min_hfw = minimumHeightForWidth(maxw, minh, maxh, widget); - - do { - if (maxw - minw < 0.1) { - // we still havent found anything, cut off binary search - minw = maxw; - minh = maxh; - } - middlew = minw + (maxw - minw)/2.0; - middleh = minh + (maxh - minh)/2.0; - - min_hfw = minimumHeightForWidth(middlew, minh, maxh, widget); - - if (min_hfw > middleh) { - minw = middlew; - minh = middleh; - } else if (min_hfw <= middleh) { - maxw = middlew; - maxh = middleh; - } - } while (maxw != minw); - - min_hfw = minimumHeightForWidth(middlew, minh, maxh, widget); - - QSizeF result; - if (min_hfw < maxh) { - result = QSizeF(middlew, min_hfw); - } else { - // Needed because of the cut-off we do above. - result = QSizeF(minimumWidthForHeight(maxh, proposed.width(), current.width(), widget), maxh); - } - return result; -} - -static void _q_boundGeometryToSizeConstraints(const QRectF &startGeometry, - QRectF *rect, Qt::WindowFrameSection section, - const QSizeF &min, const QSizeF &max, - const QGraphicsWidget *widget) -{ - const QRectF proposedRect = *rect; - qreal width = qBound(min.width(), proposedRect.width(), max.width()); - qreal height = qBound(min.height(), proposedRect.height(), max.height()); - - const bool hasHFW = QGraphicsLayoutItemPrivate::get(widget)->hasHeightForWidth(); - const bool hasWFH = QGraphicsLayoutItemPrivate::get(widget)->hasWidthForHeight(); - - const bool widthChanged = proposedRect.width() != widget->size().width(); - const bool heightChanged = proposedRect.height() != widget->size().height(); - - if (hasHFW || hasWFH) { - if (widthChanged || heightChanged) { - qreal minExtent; - qreal maxExtent; - qreal constraint; - qreal proposed; - if (hasHFW) { - minExtent = min.height(); - maxExtent = max.height(); - constraint = width; - proposed = proposedRect.height(); - } else { - // width for height - minExtent = min.width(); - maxExtent = max.width(); - constraint = height; - proposed = proposedRect.width(); - } - if (minimumHeightForWidth(constraint, minExtent, maxExtent, widget, hasHFW) > proposed) { - QSizeF effectiveSize = closestAcceptableSize(QSizeF(width, height), widget); - width = effectiveSize.width(); - height = effectiveSize.height(); - } - } - } - - switch (section) { - case Qt::LeftSection: - rect->setRect(startGeometry.right() - qRound(width), startGeometry.top(), - qRound(width), startGeometry.height()); - break; - case Qt::TopLeftSection: - rect->setRect(startGeometry.right() - qRound(width), startGeometry.bottom() - qRound(height), - qRound(width), qRound(height)); - break; - case Qt::TopSection: - rect->setRect(startGeometry.left(), startGeometry.bottom() - qRound(height), - startGeometry.width(), qRound(height)); - break; - case Qt::TopRightSection: - rect->setTop(rect->bottom() - qRound(height)); - rect->setWidth(qRound(width)); - break; - case Qt::RightSection: - rect->setWidth(qRound(width)); - break; - case Qt::BottomRightSection: - rect->setWidth(qRound(width)); - rect->setHeight(qRound(height)); - break; - case Qt::BottomSection: - rect->setHeight(qRound(height)); - break; - case Qt::BottomLeftSection: - rect->setRect(startGeometry.right() - qRound(width), startGeometry.top(), - qRound(width), qRound(height)); - break; - default: - break; - } -} - -void QGraphicsWidgetPrivate::windowFrameMouseMoveEvent(QGraphicsSceneMouseEvent *event) -{ - Q_Q(QGraphicsWidget); - ensureWindowData(); - if (!(event->buttons() & Qt::LeftButton) || windowData->hoveredSubControl != QStyle::SC_TitleBarLabel) - return; - - QLineF delta(q->mapFromScene(event->buttonDownScenePos(Qt::LeftButton)), event->pos()); - QLineF parentDelta(q->mapToParent(delta.p1()), q->mapToParent(delta.p2())); - QLineF parentXDelta(q->mapToParent(QPointF(delta.p1().x(), 0)), q->mapToParent(QPointF(delta.p2().x(), 0))); - QLineF parentYDelta(q->mapToParent(QPointF(0, delta.p1().y())), q->mapToParent(QPointF(0, delta.p2().y()))); - - QRectF newGeometry; - switch (windowData->grabbedSection) { - case Qt::LeftSection: - newGeometry = QRectF(windowData->startGeometry.topLeft() - + QPointF(parentXDelta.dx(), parentXDelta.dy()), - windowData->startGeometry.size() - QSizeF(delta.dx(), delta.dy())); - break; - case Qt::TopLeftSection: - newGeometry = QRectF(windowData->startGeometry.topLeft() - + QPointF(parentDelta.dx(), parentDelta.dy()), - windowData->startGeometry.size() - QSizeF(delta.dx(), delta.dy())); - break; - case Qt::TopSection: - newGeometry = QRectF(windowData->startGeometry.topLeft() - + QPointF(parentYDelta.dx(), parentYDelta.dy()), - windowData->startGeometry.size() - QSizeF(0, delta.dy())); - break; - case Qt::TopRightSection: - newGeometry = QRectF(windowData->startGeometry.topLeft() - + QPointF(parentYDelta.dx(), parentYDelta.dy()), - windowData->startGeometry.size() - QSizeF(-delta.dx(), delta.dy())); - break; - case Qt::RightSection: - newGeometry = QRectF(windowData->startGeometry.topLeft(), - windowData->startGeometry.size() + QSizeF(delta.dx(), 0)); - break; - case Qt::BottomRightSection: - newGeometry = QRectF(windowData->startGeometry.topLeft(), - windowData->startGeometry.size() + QSizeF(delta.dx(), delta.dy())); - break; - case Qt::BottomSection: - newGeometry = QRectF(windowData->startGeometry.topLeft(), - windowData->startGeometry.size() + QSizeF(0, delta.dy())); - break; - case Qt::BottomLeftSection: - newGeometry = QRectF(windowData->startGeometry.topLeft() - + QPointF(parentXDelta.dx(), parentXDelta.dy()), - windowData->startGeometry.size() - QSizeF(delta.dx(), -delta.dy())); - break; - case Qt::TitleBarArea: - newGeometry = QRectF(windowData->startGeometry.topLeft() - + QPointF(parentDelta.dx(), parentDelta.dy()), - windowData->startGeometry.size()); - break; - case Qt::NoSection: - break; - } - - if (windowData->grabbedSection != Qt::NoSection) { - _q_boundGeometryToSizeConstraints(windowData->startGeometry, &newGeometry, - windowData->grabbedSection, - q->effectiveSizeHint(Qt::MinimumSize), - q->effectiveSizeHint(Qt::MaximumSize), - q); - q->setGeometry(newGeometry); - } -} - -void QGraphicsWidgetPrivate::windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent *event) -{ - Q_Q(QGraphicsWidget); - if (!hasDecoration()) - return; - - ensureWindowData(); - - if (q->rect().contains(event->pos())) { - if (windowData->buttonMouseOver || windowData->hoveredSubControl != QStyle::SC_None) - windowFrameHoverLeaveEvent(event); - return; - } - - 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. - if (windowFrameMargins) { - pos.rx() += windowFrameMargins[Left]; - pos.ry() += windowFrameMargins[Top]; - } - initStyleOptionTitleBar(&bar); - bar.rect = q->windowFrameRect().toRect(); - bar.rect.moveTo(0,0); - bar.rect.setHeight(int(titleBarHeight(bar))); - - Qt::CursorShape cursorShape = Qt::ArrowCursor; - bool needsSetCursorCall = true; - switch (q->windowFrameSectionAt(event->pos())) { - case Qt::TopLeftSection: - case Qt::BottomRightSection: - cursorShape = Qt::SizeFDiagCursor; - break; - case Qt::TopRightSection: - case Qt::BottomLeftSection: - cursorShape = Qt::SizeBDiagCursor; - break; - case Qt::LeftSection: - case Qt::RightSection: - cursorShape = Qt::SizeHorCursor; - break; - case Qt::TopSection: - case Qt::BottomSection: - cursorShape = Qt::SizeVerCursor; - break; - case Qt::TitleBarArea: - 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 - 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 (windowData->buttonRect.contains(pos.toPoint())) - windowData->buttonMouseOver = true; - event->ignore(); - break; - default: - needsSetCursorCall = false; - event->ignore(); - } -#ifndef QT_NO_CURSOR - if (needsSetCursorCall) - q->setCursor(cursorShape); -#endif - // update buttons if we hover over them - windowData->hoveredSubControl = q->style()->hitTestComplexControl(QStyle::CC_TitleBar, &bar, pos.toPoint(), 0); - if (windowData->hoveredSubControl != QStyle::SC_TitleBarCloseButton) - windowData->hoveredSubControl = QStyle::SC_TitleBarLabel; - - if (windowData->buttonMouseOver != wasMouseOver) { - if (!oldButtonRect.isNull()) - q->update(QRectF(oldButtonRect).translated(q->windowFrameRect().topLeft())); - if (!windowData->buttonRect.isNull()) - q->update(QRectF(windowData->buttonRect).translated(q->windowFrameRect().topLeft())); - } -} - -void QGraphicsWidgetPrivate::windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent *event) -{ - Q_UNUSED(event); - Q_Q(QGraphicsWidget); - if (hasDecoration()) { - // ### restore the cursor, don't override it -#ifndef QT_NO_CURSOR - q->unsetCursor(); -#endif - - ensureWindowData(); - - bool needsUpdate = false; - if (windowData->hoveredSubControl == QStyle::SC_TitleBarCloseButton - || windowData->buttonMouseOver) - needsUpdate = true; - - // update the hover state (of buttons etc...) - windowData->hoveredSubControl = QStyle::SC_None; - windowData->buttonMouseOver = false; - windowData->buttonRect = QRect(); - if (needsUpdate) - q->update(windowData->buttonRect); - } -} - -bool QGraphicsWidgetPrivate::hasDecoration() const -{ - return (windowFlags & Qt::Window) && (windowFlags & Qt::WindowTitleHint); -} - -/** - * is called after a reparent has taken place to fix up the focus chain(s) - */ -void QGraphicsWidgetPrivate::fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene) -{ - Q_Q(QGraphicsWidget); - - Q_ASSERT(focusNext && focusPrev); - - QGraphicsWidget *n = q; //last one in 'new' list - QGraphicsWidget *o = 0; //last one in 'old' list - - QGraphicsWidget *w = focusNext; - - QGraphicsWidget *firstOld = 0; - bool wasPreviousNew = true; - - while (w != q) { - bool isCurrentNew = q->isAncestorOf(w); - if (isCurrentNew) { - if (!wasPreviousNew) { - n->d_func()->focusNext = w; - w->d_func()->focusPrev = n; - } - n = w; - } else /*if (!isCurrentNew)*/ { - if (wasPreviousNew) { - if (o) { - o->d_func()->focusNext = w; - w->d_func()->focusPrev = o; - } else { - firstOld = w; - } - } - o = w; - } - w = w->d_func()->focusNext; - wasPreviousNew = isCurrentNew; - } - - // repair the 'old' chain - if (firstOld) { - o->d_func()->focusNext = firstOld; - firstOld->d_func()->focusPrev = o; - } - - // update tabFocusFirst for oldScene if the item is going to be removed from oldScene - if (newParent) - newScene = newParent->scene(); - - if (oldScene && newScene != oldScene) - oldScene->d_func()->tabFocusFirst = (firstOld && firstOld->scene() == oldScene) ? firstOld : 0; - - QGraphicsItem *topLevelItem = newParent ? newParent->topLevelItem() : 0; - QGraphicsWidget *topLevel = 0; - if (topLevelItem && topLevelItem->isWidget()) - topLevel = static_cast<QGraphicsWidget *>(topLevelItem); - - if (topLevel && newParent) { - QGraphicsWidget *last = topLevel->d_func()->focusPrev; - // link last with new chain - last->d_func()->focusNext = q; - focusPrev = last; - - // link last in chain with - topLevel->d_func()->focusPrev = n; - n->d_func()->focusNext = topLevel; - } else { - // q is the start of the focus chain - n->d_func()->focusNext = q; - focusPrev = n; - } - -} - -void QGraphicsWidgetPrivate::setLayout_helper(QGraphicsLayout *l) -{ - delete (this->layout); - layout = l; - if (!l) { - Q_Q(QGraphicsWidget); - q->updateGeometry(); - } -} - -qreal QGraphicsWidgetPrivate::width() const -{ - Q_Q(const QGraphicsWidget); - return q->geometry().width(); -} - -void QGraphicsWidgetPrivate::setWidth(qreal w) -{ - if (qIsNaN(w)) - return; - Q_Q(QGraphicsWidget); - if (q->geometry().width() == w) - return; - - QRectF oldGeom = q->geometry(); - - q->setGeometry(QRectF(q->x(), q->y(), w, height())); -} - -void QGraphicsWidgetPrivate::resetWidth() -{ - Q_Q(QGraphicsWidget); - q->setGeometry(QRectF(q->x(), q->y(), 0, height())); -} - -qreal QGraphicsWidgetPrivate::height() const -{ - Q_Q(const QGraphicsWidget); - return q->geometry().height(); -} - -void QGraphicsWidgetPrivate::setHeight(qreal h) -{ - if (qIsNaN(h)) - return; - Q_Q(QGraphicsWidget); - if (q->geometry().height() == h) - return; - - QRectF oldGeom = q->geometry(); - - q->setGeometry(QRectF(q->x(), q->y(), width(), h)); -} - -void QGraphicsWidgetPrivate::resetHeight() -{ - Q_Q(QGraphicsWidget); - q->setGeometry(QRectF(q->x(), q->y(), width(), 0)); -} - -void QGraphicsWidgetPrivate::setGeometryFromSetPos() -{ - if (inSetGeometry) - return; - Q_Q(QGraphicsWidget); - inSetPos = 1; - // Ensure setGeometry is called (avoid recursion when setPos is - // called from within setGeometry). - q->setGeometry(QRectF(pos, q->size())); - inSetPos = 0 ; -} - -QT_END_NAMESPACE - -#endif //QT_NO_GRAPHICSVIEW |