From 8c4edbd04f350294462fd689748de2dd7cc84d47 Mon Sep 17 00:00:00 2001 From: Jens Bache-Wiig Date: Thu, 8 Oct 2009 21:10:01 +0200 Subject: Fix tab widget painting in QGtkStyle with reverse This also adds QStyleOptionTabWidgetFrameV2 so that we do not have to do ugly hacks in the style to obtain it. Task-number: QTBUG-5187 Reviewed-by: ogoffart --- src/gui/styles/qgtkstyle.cpp | 43 ++++++-------- src/gui/styles/qstyleoption.cpp | 113 ++++++++++++++++++++++++++++++++++++ src/gui/styles/qstyleoption.h | 20 +++++++ src/gui/styles/qstylesheetstyle.cpp | 2 +- src/gui/styles/qwindowsxpstyle.cpp | 2 +- src/gui/widgets/qtabwidget.cpp | 14 ++++- 6 files changed, 166 insertions(+), 28 deletions(-) diff --git a/src/gui/styles/qgtkstyle.cpp b/src/gui/styles/qgtkstyle.cpp index d315c98..a7c291b 100644 --- a/src/gui/styles/qgtkstyle.cpp +++ b/src/gui/styles/qgtkstyle.cpp @@ -1004,32 +1004,27 @@ void QGtkStyle::drawPrimitive(PrimitiveElement element, gtkPainter.setAlphaSupport(false); GtkShadowType shadow = GTK_SHADOW_OUT; GtkStateType state = GTK_STATE_NORMAL; // Only state supported by gtknotebook - if (const QTabWidget *tabwidget = qobject_cast(widget)) { - // We should introduce QStyleOptionTabWidgetFrameV2 to obtain this information - // No gap if we do not show the actual tabs - QTabBar *tabBar = tabwidget->findChild(); - if (tabwidget->count() > 0 && tabBar->isVisible()) { - QRect tabRect = tabBar->tabRect(tabBar->currentIndex()); - int begin = 0, size = 0; - GtkPositionType frameType = GTK_POS_TOP; - QTabBar::Shape shape = frame->shape; - if (shape == QTabBar::RoundedNorth || shape == QTabBar::RoundedSouth) { - begin = option->direction == Qt::LeftToRight ? - frame->leftCornerWidgetSize.width() + tabRect.left() : - frame->rect.width() - frame->tabBarSize.width() + tabRect.left() - - frame->rightCornerWidgetSize.width(); - size = tabRect.width(); - frameType = (shape == QTabBar::RoundedNorth) ? GTK_POS_TOP : GTK_POS_BOTTOM; - } else { - begin = frame->leftCornerWidgetSize.height() + tabRect.top(); - size = tabRect.height(); - frameType = (shape == QTabBar::RoundedWest) ? GTK_POS_LEFT : GTK_POS_RIGHT; - } - gtkPainter.paintBoxGap(gtkNotebook, "notebook", option->rect, state, shadow, frameType, - begin, size, style); - break; // done + bool reverse = (option->direction == Qt::RightToLeft); + QGtk::gtk_widget_set_direction(gtkNotebook, reverse ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR); + if (const QStyleOptionTabWidgetFrameV2 *tabframe = qstyleoption_cast(option)) { + GtkPositionType frameType = GTK_POS_TOP; + QTabBar::Shape shape = frame->shape; + int gapStart = 0; + int gapSize = 0; + if (shape == QTabBar::RoundedNorth || shape == QTabBar::RoundedSouth) { + frameType = (shape == QTabBar::RoundedNorth) ? GTK_POS_TOP : GTK_POS_BOTTOM; + gapStart = tabframe->selectedTabRect.left(); + gapSize = tabframe->selectedTabRect.width(); + } else { + frameType = (shape == QTabBar::RoundedWest) ? GTK_POS_LEFT : GTK_POS_RIGHT; + gapStart = tabframe->selectedTabRect.y(); + gapSize = tabframe->selectedTabRect.height(); } + gtkPainter.paintBoxGap(gtkNotebook, "notebook", option->rect, state, shadow, frameType, + gapStart, gapSize, style); + break; // done } + // Note this is only the fallback option gtkPainter.paintBox(gtkNotebook, "notebook", option->rect, state, shadow, style); } diff --git a/src/gui/styles/qstyleoption.cpp b/src/gui/styles/qstyleoption.cpp index 061afcc..f5a2b94 100644 --- a/src/gui/styles/qstyleoption.cpp +++ b/src/gui/styles/qstyleoption.cpp @@ -4654,6 +4654,119 @@ QStyleOptionTabWidgetFrame::QStyleOptionTabWidgetFrame(int version) The default value is QSize(-1, -1), i.e. an invalid size. */ + + +/*! + + \class QStyleOptionTabWidgetFrameV2 + \brief The QStyleOptionTabWidgetFrameV2 class is used to describe the + parameters for drawing the frame around a tab widget. + + QStyleOptionTabWidgetFrameV2 contains all the information that + QStyle functions need to draw the frame around QTabWidget. + + For performance reasons, the access to the member variables is + direct (i.e., using the \c . or \c -> operator). This low-level feel + makes the structures straightforward to use and emphasizes that + these are simply parameters used by the style functions. + + For an example demonstrating how style options can be used, see + the \l {widgets/styles}{Styles} example. + + \sa QStyleOption, QTabWidget +*/ + + +/*! + \variable QStyleOptionTabWidgetFrameV2::tabBarRect + \brief the rectangle containing all the tabs + + The default value is a null rectangle, i.e. a rectangle with both + the width and the height set to 0. +*/ + +/*! + \variable QStyleOptionTabWidgetFrameV2::selectedTabRect + \brief the rectangle containing the selected tab + + This rectangle is contained within the tabBarRect. The default + value is a null rectangle, i.e. a rectangle with both the width + and the height set to 0. +*/ + + +/*! + Constructs a QStyleOptionTabWidgetFrameV2, initializing the members + variables to their default values. +*/ + +QStyleOptionTabWidgetFrameV2::QStyleOptionTabWidgetFrameV2() + : QStyleOptionTabWidgetFrame(Version) +{ +} + + +/*! \internal */ +QStyleOptionTabWidgetFrameV2::QStyleOptionTabWidgetFrameV2(int version) + : QStyleOptionTabWidgetFrame(version) +{ +} + + +/*! + Constructs a QStyleOptionTabWidgetFrameV2 copy of the \a other style option + which can be either of the QStyleOptionTabWidgetFrameV2 or + QStyleOptionTabWidgetFrame types. + + If the \a other style option's version is 1, the new style option's \l + selectedTabRect and tabBarRect will contain null rects + + \sa version +*/ +QStyleOptionTabWidgetFrameV2::QStyleOptionTabWidgetFrameV2(const QStyleOptionTabWidgetFrame &other) +{ + QStyleOptionTabWidgetFrameV2::operator=(other); + +} + + +/*! + Assigns the \a other style option to this style option. The \a + other style option can be either of the QStyleOptionFrameV2 or + QStyleOptionFrame types. + + If the \a{other} style option's version is 1, this style option's + \l FrameFeature value is set to \l QStyleOptionFrameV2::None. If + its version is 2, its \l FrameFeature value is simply copied to + this style option. +*/ +QStyleOptionTabWidgetFrameV2 &QStyleOptionTabWidgetFrameV2::operator=(const QStyleOptionTabWidgetFrame &other) +{ + QStyleOptionTabWidgetFrame::operator=(other); + if (const QStyleOptionTabWidgetFrameV2 *f2 = qstyleoption_cast(&other)) { + selectedTabRect = f2->selectedTabRect; + tabBarRect = f2->tabBarRect; + } + return *this; +} + + +/*! + \enum QStyleOptionTabWidgetFrameV2::StyleOptionVersion + + This enum is used to hold information about the version of the style option, and + is defined for each QStyleOption subclass. + + \value Version 2 + + The version is used by QStyleOption subclasses to implement + extensions without breaking compatibility. If you use + qstyleoption_cast(), you normally do not need to check it. + + \sa StyleOptionType +*/ + + #endif // QT_NO_TABWIDGET #ifndef QT_NO_TABBAR diff --git a/src/gui/styles/qstyleoption.h b/src/gui/styles/qstyleoption.h index bf8b479..abd52bf 100644 --- a/src/gui/styles/qstyleoption.h +++ b/src/gui/styles/qstyleoption.h @@ -192,8 +192,28 @@ public: protected: QStyleOptionTabWidgetFrame(int version); }; + +class Q_GUI_EXPORT QStyleOptionTabWidgetFrameV2 : public QStyleOptionTabWidgetFrame +{ +public: + enum StyleOptionVersion { Version = 2 }; + + QRect tabBarRect; + QRect selectedTabRect; + + QStyleOptionTabWidgetFrameV2(); + QStyleOptionTabWidgetFrameV2(const QStyleOptionTabWidgetFrameV2 &other) : + QStyleOptionTabWidgetFrame(Version) { *this = other; } + QStyleOptionTabWidgetFrameV2(const QStyleOptionTabWidgetFrame &other); + QStyleOptionTabWidgetFrameV2 &operator=(const QStyleOptionTabWidgetFrame &other); + +protected: + QStyleOptionTabWidgetFrameV2(int version); +}; + #endif + #ifndef QT_NO_TABBAR class Q_GUI_EXPORT QStyleOptionTabBarBase : public QStyleOption { diff --git a/src/gui/styles/qstylesheetstyle.cpp b/src/gui/styles/qstylesheetstyle.cpp index 2d90aa1..ae1d33a 100644 --- a/src/gui/styles/qstylesheetstyle.cpp +++ b/src/gui/styles/qstylesheetstyle.cpp @@ -4325,7 +4325,7 @@ void QStyleSheetStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *op QRenderRule subRule = renderRule(w, opt, PseudoElement_TabWidgetPane); if (subRule.hasNativeBorder()) { subRule.drawBackground(p, opt->rect); - QStyleOptionTabWidgetFrame frmCopy(*frm); + QStyleOptionTabWidgetFrameV2 frmCopy(*frm); subRule.configurePalette(&frmCopy.palette, QPalette::WindowText, QPalette::Window); baseStyle()->drawPrimitive(pe, &frmCopy, p, w); } else { diff --git a/src/gui/styles/qwindowsxpstyle.cpp b/src/gui/styles/qwindowsxpstyle.cpp index b5dc647..9fd9ce9 100644 --- a/src/gui/styles/qwindowsxpstyle.cpp +++ b/src/gui/styles/qwindowsxpstyle.cpp @@ -1582,7 +1582,7 @@ case PE_Frame: // This should work, but currently there's an error in the ::drawBackgroundDirectly() // code, when using the HDC directly.. if (useGradient) { - QStyleOptionTabWidgetFrame frameOpt = *tab; + QStyleOptionTabWidgetFrameV2 frameOpt = *tab; frameOpt.rect = widget->rect(); QRect contentsRect = subElementRect(SE_TabWidgetTabContents, &frameOpt, widget); QRegion reg = option->rect; diff --git a/src/gui/widgets/qtabwidget.cpp b/src/gui/widgets/qtabwidget.cpp index 0c89a72..d22bd54 100644 --- a/src/gui/widgets/qtabwidget.cpp +++ b/src/gui/widgets/qtabwidget.cpp @@ -313,7 +313,16 @@ void QTabWidget::initStyleOption(QStyleOptionTabWidgetFrame *option) const : QTabBar::TriangularEast; break; } + option->tabBarSize = t; + + if (QStyleOptionTabWidgetFrameV2 *tabframe = qstyleoption_cast(option)) { + QRect tbRect = tabBar()->geometry(); + QRect selectedTabRect = tabBar()->tabRect(tabBar()->currentIndex()); + tabframe->tabBarRect = tbRect; + selectedTabRect.moveTopLeft(selectedTabRect.topLeft() + tbRect.topLeft()); + tabframe->selectedTabRect = selectedTabRect; + } } /*! @@ -756,7 +765,7 @@ void QTabWidget::setUpLayout(bool onlyCheck) if (onlyCheck && !d->dirty) return; // nothing to do - QStyleOptionTabWidgetFrame option; + QStyleOptionTabWidgetFrameV2 option; initStyleOption(&option); // this must be done immediately, because QWidgetItem relies on it (even if !isVisible()) @@ -1186,7 +1195,8 @@ void QTabWidget::paintEvent(QPaintEvent *) return; } QStylePainter p(this); - QStyleOptionTabWidgetFrame opt; + + QStyleOptionTabWidgetFrameV2 opt; initStyleOption(&opt); opt.rect = d->panelRect; p.drawPrimitive(QStyle::PE_FrameTabWidget, opt); -- cgit v0.12