void QGraphicsWidgetPrivate::initStyleOptionTitleBar(QStyleOptionTitleBar *option) { Q_Q(QGraphicsWidget); 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; 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(windowTitle, Qt::ElideRight, textRect.width()); }
bool QDecorationStyled::paint(QPainter *painter, const QWidget *widget, int decorationRegion, DecorationState state) { if (decorationRegion == None) return false; bool isActive = (widget == qApp->activeWindow()); QPalette pal = qApp->palette(); //ideally, the difference between Active and Inactive should be enough, so we shouldn't need to test this if (!isActive) { //pal.setCurrentColorGroup(QPalette::Disabled); //Can't do this either, because of palette limitations //copied from Q3TitleBar: pal.setColor(QPalette::Inactive, QPalette::Highlight, pal.color(QPalette::Inactive, QPalette::Dark)); pal.setColor(QPalette::Inactive, QPalette::Base, pal.color(QPalette::Inactive, QPalette::Dark)); pal.setColor(QPalette::Inactive, QPalette::HighlightedText, pal.color(QPalette::Inactive, QPalette::Window)); } Qt::WindowFlags flags = widget->windowFlags(); bool hasBorder = !widget->isMaximized(); bool hasTitle = flags & Qt::WindowTitleHint; bool hasSysMenu = flags & Qt::WindowSystemMenuHint; bool hasContextHelp = flags & Qt::WindowContextHelpButtonHint; bool hasMinimize = flags & Qt::WindowMinimizeButtonHint; bool hasMaximize = flags & Qt::WindowMaximizeButtonHint; bool paintAll = (DecorationRegion(decorationRegion) == All); bool handled = false; QStyle *style = QApplication::style(); // In the case of a borderless title bar, the title bar must be expanded one // borderWidth to the left, right and up. bool noTitleBorder = style->styleHint(QStyle::SH_TitleBar_NoBorder, 0, widget); int borderWidth = style->pixelMetric(QStyle::PM_MDIFrameWidth, 0, 0); int titleHeight = titleBarHeight(widget) + (noTitleBorder ? borderWidth : 0); int titleExtra = noTitleBorder ? borderWidth : 0; if ((paintAll || decorationRegion & Borders) && state == Normal && hasBorder) { QRegion newClip = painter->clipRegion(); if (hasTitle) { // reduce flicker QRect rect(widget->rect()); QRect r(rect.left() - titleExtra, rect.top() - titleHeight, rect.width() + 2 * titleExtra, titleHeight); newClip -= r; } if (!newClip.isEmpty()) { QRect br = QDecoration::region(widget).boundingRect(); painter->save(); painter->setClipRegion(newClip); QStyleOptionFrame opt; opt.palette = pal; opt.rect = br; opt.lineWidth = borderWidth; if (isActive) opt.state |= QStyle::State_Active; bool porterDuff = painter->paintEngine()->hasFeature(QPaintEngine::PorterDuff); if (porterDuff) painter->setCompositionMode(QPainter::CompositionMode_Source); painter->fillRect(br, pal.window()); if (porterDuff) painter->setCompositionMode(QPainter::CompositionMode_SourceOver); style->drawPrimitive(QStyle::PE_FrameWindow, &opt, painter, 0); painter->restore(); decorationRegion &= (~Borders); handled |= true; } } if (hasTitle) { painter->save(); QStyleOptionTitleBar opt; opt.subControls = (decorationRegion & Title ? QStyle::SC_TitleBarLabel : QStyle::SubControl(0)) | (decorationRegion & Menu ? QStyle::SC_TitleBarSysMenu : QStyle::SubControl(0)) | (decorationRegion & Help ? QStyle::SC_TitleBarContextHelpButton : QStyle::SubControl(0)) | (decorationRegion & Minimize ? QStyle::SC_TitleBarMinButton : QStyle::SubControl(0)) | (decorationRegion & Maximize ? QStyle::SC_TitleBarMaxButton : QStyle::SubControl(0)) | (decorationRegion & (Minimize | Maximize) ? QStyle::SC_TitleBarNormalButton : QStyle::SubControl(0)) | (decorationRegion & Close ? QStyle::SC_TitleBarCloseButton : QStyle::SubControl(0)); opt.titleBarFlags = widget->windowFlags(); opt.titleBarState = widget->windowState(); if (isActive) opt.titleBarState |= QStyle::State_Active; opt.text = windowTitleFor(widget); opt.icon = widget->windowIcon(); opt.palette = pal; opt.rect = QRect(widget->rect().x() - titleExtra, -titleHeight, widget->rect().width() + 2 * titleExtra, titleHeight); if (paintAll) { painter->setClipRegion(opt.rect); } else { const QRect widgetRect = widget->rect(); QRegion newClip = opt.rect; if (!(decorationRegion & Menu) && hasSysMenu) newClip -= region(widget, widgetRect, Menu); if (!(decorationRegion & Title) && hasTitle) newClip -= region(widget, widgetRect, Title); if (!(decorationRegion & Help) && hasContextHelp) newClip -= region(widget, widgetRect, Help); if (!(decorationRegion & Minimize) && hasMinimize) newClip -= region(widget, widgetRect, Minimize); if (!(decorationRegion & Maximize) && hasMaximize) newClip -= region(widget, widgetRect, Maximize); if (!(decorationRegion & (Minimize | Maximize)) && (hasMaximize | hasMinimize)) newClip -= region(widget, widgetRect, Normal); if (!(decorationRegion & Close)) newClip -= region(widget, widgetRect, Close); painter->setClipRegion(newClip); } if (state == Pressed) opt.activeSubControls = opt.subControls; style->drawComplexControl(QStyle::CC_TitleBar, &opt, painter, 0); painter->restore(); decorationRegion &= ~(Title | Menu | Help | Normalize | Minimize | Maximize | Close); handled |= true; } return handled; }
QRegion QDecorationStyled::region(const QWidget *widget, const QRect &rect, int decorationRegion) { QStyle *style = QApplication::style(); // In the case of a borderless title bar, the title bar must be expanded one // borderWidth to the left, right and up. bool noTitleBorder = style->styleHint(QStyle::SH_TitleBar_NoBorder, 0, widget); int borderWidth = style->pixelMetric(QStyle::PM_MDIFrameWidth, 0, 0); int titleHeight = titleBarHeight(widget) + (noTitleBorder ? borderWidth : 0); int titleExtra = noTitleBorder ? borderWidth : 0; QRect inside = QRect(rect.x() - titleExtra, rect.top() - titleHeight, rect.width() + 2 * titleExtra, titleHeight); Qt::WindowFlags flags = widget->windowFlags(); bool hasSysMenu = flags & Qt::WindowSystemMenuHint; bool hasContextHelp = flags & Qt::WindowContextHelpButtonHint; bool hasMinimize = flags & Qt::WindowMinimizeButtonHint; bool hasMaximize = flags & Qt::WindowMaximizeButtonHint; QStyleOptionTitleBar opt; opt.subControls = QStyle::SC_TitleBarLabel | QStyle::SC_TitleBarSysMenu | QStyle::SC_TitleBarNormalButton | QStyle::SC_TitleBarMinButton | QStyle::SC_TitleBarMaxButton | QStyle::SC_TitleBarCloseButton; opt.titleBarFlags = widget->windowFlags(); opt.direction = QApplication::layoutDirection(); opt.text = windowTitleFor(widget); opt.icon = widget->windowIcon(); opt.rect = inside; QRegion region; switch (decorationRegion) { case Title: region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarLabel, 0); break; case Menu: if (hasSysMenu) region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarSysMenu, 0); break; case Help: if (hasContextHelp) region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarContextHelpButton, 0); break; case Normalize: if (hasMaximize | hasMinimize) region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarNormalButton, 0); break; case Minimize: if (hasMinimize) region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarMinButton, 0); break; case Maximize: if (hasMaximize) region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarMaxButton, 0); break; case Close: region = style->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarCloseButton, 0); break; default: region = QDecorationDefault::region(widget, rect, decorationRegion); } opt.rect = QRect(rect.x() - titleExtra, rect.top() - titleHeight, rect.width() + 2 * titleExtra, rect.height() + titleHeight + titleExtra); QStyleHintReturnMask mask; style->styleHint(QStyle::SH_WindowFrame_Mask, &opt, 0, &mask); return (mask.region.isEmpty() ? region : (region & mask.region)); }
/*! Returns the region specified by \a decorationRegion for the top-level \a widget. \a rect specifies the rectangle the decoration wraps. The value of \a decorationRegion is a combination of the bitmask values of enum DecorationRegion. */ QRegion QDecorationDefault::region(const QWidget *widget, const QRect &rect, int decorationRegion) { Qt::WindowFlags flags = widget->windowFlags(); bool hasBorder = !widget->isMaximized(); bool hasTitle = flags & Qt::WindowTitleHint; bool hasSysMenu = flags & Qt::WindowSystemMenuHint; bool hasContextHelp = flags & Qt::WindowContextHelpButtonHint; bool hasMinimize = flags & Qt::WindowMinimizeButtonHint; bool hasMaximize = flags & Qt::WindowMaximizeButtonHint; int state = widget->windowState(); bool isMinimized = state & Qt::WindowMinimized; bool isMaximized = state & Qt::WindowMaximized; int titleHeight = hasTitle ? titleBarHeight(widget) : 0; int bw = hasBorder ? BORDER_WIDTH : 0; int bbw = hasBorder ? BOTTOM_BORDER_WIDTH : 0; QRegion region; switch (decorationRegion) { case All: { QRect r(rect.left() - bw, rect.top() - titleHeight - bw, rect.width() + 2 * bw, rect.height() + titleHeight + bw + bbw); region = r; region -= rect; } break; case Title: { QRect r(rect.left() + (hasSysMenu ? menu_width : 0), rect.top() - titleHeight, rect.width() - (hasSysMenu ? menu_width : 0) - close_width - (hasMaximize ? maximize_width : 0) - (hasMinimize ? minimize_width : 0) - (hasContextHelp ? help_width : 0), titleHeight); if (r.width() > 0) region = r; } break; case Top: { QRect r(rect.left() + CORNER_GRAB, rect.top() - titleHeight - bw, rect.width() - 2 * CORNER_GRAB, bw); region = r; } break; case Left: { QRect r(rect.left() - bw, rect.top() - titleHeight + CORNER_GRAB, bw, rect.height() + titleHeight - 2 * CORNER_GRAB); region = r; } break; case Right: { QRect r(rect.right() + 1, rect.top() - titleHeight + CORNER_GRAB, bw, rect.height() + titleHeight - 2 * CORNER_GRAB); region = r; } break; case Bottom: { QRect r(rect.left() + CORNER_GRAB, rect.bottom() + 1, rect.width() - 2 * CORNER_GRAB, bw); region = r; } break; case TopLeft: { QRect r1(rect.left() - bw, rect.top() - bw - titleHeight, CORNER_GRAB + bw, bw); QRect r2(rect.left() - bw, rect.top() - bw - titleHeight, bw, CORNER_GRAB + bw); region = QRegion(r1) + r2; } break; case TopRight: { QRect r1(rect.right() - CORNER_GRAB, rect.top() - bw - titleHeight, CORNER_GRAB + bw, bw); QRect r2(rect.right() + 1, rect.top() - bw - titleHeight, bw, CORNER_GRAB + bw); region = QRegion(r1) + r2; } break; case BottomLeft: { QRect r1(rect.left() - bw, rect.bottom() + 1, CORNER_GRAB + bw, bw); QRect r2(rect.left() - bw, rect.bottom() - CORNER_GRAB, bw, CORNER_GRAB + bw); region = QRegion(r1) + r2; } break; case BottomRight: { QRect r1(rect.right() - CORNER_GRAB, rect.bottom() + 1, CORNER_GRAB + bw, bw); QRect r2(rect.right() + 1, rect.bottom() - CORNER_GRAB, bw, CORNER_GRAB + bw); region = QRegion(r1) + r2; } break; case Menu: { if (hasSysMenu) { region = QRect(rect.left(), rect.top() - titleHeight, menu_width, titleHeight); } } break; case Help: { if (hasContextHelp) { QRect r(rect.right() - close_width - (hasMaximize ? maximize_width : 0) - (hasMinimize ? minimize_width : 0) - help_width + 1, rect.top() - titleHeight, help_width, titleHeight); if (r.left() > rect.left() + titleHeight) region = r; } } break; case Minimize: { if (hasMinimize && !isMinimized) { QRect r(rect.right() - close_width - (hasMaximize ? maximize_width : 0) - minimize_width + 1, rect.top() - titleHeight, minimize_width, titleHeight); if (r.left() > rect.left() + titleHeight) region = r; } } break; case Maximize: { if (hasMaximize && !isMaximized) { QRect r(rect.right() - close_width - maximize_width + 1, rect.top() - titleHeight, maximize_width, titleHeight); if (r.left() > rect.left() + titleHeight) region = r; } } break; case Normalize: { if (hasMinimize && isMinimized) { QRect r(rect.right() - close_width - (hasMaximize ? maximize_width : 0) - minimize_width + 1, rect.top() - titleHeight, minimize_width, titleHeight); if (r.left() > rect.left() + titleHeight) region = r; } else if (hasMaximize && isMaximized) { QRect r(rect.right() - close_width - maximize_width + 1, rect.top() - titleHeight, maximize_width, titleHeight); if (r.left() > rect.left() + titleHeight) region = r; } } break; case Close: { QRect r(rect.right() - close_width + 1, rect.top() - titleHeight, close_width, titleHeight); if (r.left() > rect.left() + titleHeight) region = r; } break; default: { int i = 1; while (i) { if (i & decorationRegion) region += this->region(widget, rect, i); i <<= 1; } } break; } return region; }
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())); } }