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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#ifndef QSTYLESHEETSTYLE_P_H
#define QSTYLESHEETSTYLE_P_H
#include <QtWidgets/private/qtwidgetsglobal_p.h>
#if QT_CONFIG(style_windows)
#include "private/qwindowsstyle_p.h"
#if QT_CONFIG(style_stylesheet)
#include "QtWidgets/qapplication.h"
#include "QtWidgets/qstyleoption.h"
#include "QtCore/qhash.h"
#include "QtCore/qlist.h"
#include "QtCore/qset.h"
#include "QtGui/qbrush.h"
#include "QtGui/qevent.h"
#include "private/qcssparser_p.h"
QT_BEGIN_NAMESPACE
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
class QRenderRule;
class QAbstractScrollArea;
class QStyleSheetStylePrivate;
class QStyleOptionTitleBar;
class Q_AUTOTEST_EXPORT QStyleSheetStyle : public QWindowsStyle
{
typedef QWindowsStyle ParentStyle;
Q_OBJECT
public:
QStyleSheetStyle(QStyle *baseStyle);
~QStyleSheetStyle();
void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
const QWidget *w = nullptr) const override;
void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
const QWidget *w = nullptr) const override;
void drawItemPixmap(QPainter *painter, const QRect &rect, int alignment, const QPixmap &pixmap) const override;
void drawItemText(QPainter *painter, const QRect& rect, int alignment, const QPalette &pal,
bool enabled, const QString& text, QPalette::ColorRole textRole = QPalette::NoRole) const override;
void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
const QWidget *w = nullptr) const override;
QPixmap generatedIconPixmap(QIcon::Mode iconMode, const QPixmap &pixmap,
const QStyleOption *option) const override;
SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt,
const QPoint &pt, const QWidget *w = nullptr) const override;
QRect itemPixmapRect(const QRect &rect, int alignment, const QPixmap &pixmap) const override;
QRect itemTextRect(const QFontMetrics &metrics, const QRect &rect, int alignment, bool enabled,
const QString &text) const override;
int pixelMetric(PixelMetric metric, const QStyleOption *option = nullptr, const QWidget *widget = nullptr) const override;
void polish(QWidget *widget) override;
void polish(QApplication *app) override;
void polish(QPalette &pal) override;
QSize sizeFromContents(ContentsType ct, const QStyleOption *opt,
const QSize &contentsSize, const QWidget *widget = nullptr) const override;
QPalette standardPalette() const override;
QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *opt = nullptr,
const QWidget *widget = nullptr) const override;
QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *option = nullptr,
const QWidget *w = nullptr ) const override;
int layoutSpacing(QSizePolicy::ControlType control1, QSizePolicy::ControlType control2,
Qt::Orientation orientation, const QStyleOption *option = nullptr,
const QWidget *widget = nullptr) const override;
int styleHint(StyleHint sh, const QStyleOption *opt = nullptr, const QWidget *w = nullptr,
QStyleHintReturn *shret = nullptr) const override;
QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = nullptr) const override;
QRect subControlRect(ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc,
const QWidget *w = nullptr) const override;
// These functions are called from QApplication/QWidget. Be careful.
QStyle *baseStyle() const;
void repolish(QWidget *widget);
void repolish(QApplication *app);
void unpolish(QWidget *widget) override;
void unpolish(QApplication *app) override;
QStyle *base;
void ref() { ++refcount; }
void deref() { Q_ASSERT(refcount > 0); if (!--refcount) delete this; }
void updateStyleSheetFont(QWidget* w) const;
void saveWidgetFont(QWidget* w, const QFont& font) const;
void clearWidgetFont(QWidget* w) const;
bool styleSheetPalette(const QWidget* w, const QStyleOption* opt, QPalette* pal);
protected:
bool event(QEvent *e) override;
private:
int refcount;
friend class QRenderRule;
int nativeFrameWidth(const QWidget *);
QRenderRule renderRule(const QWidget *, int, quint64 = 0) const;
QRenderRule renderRule(const QWidget *, const QStyleOption *, int = 0) const;
QSize defaultSize(const QWidget *, QSize, const QRect&, int) const;
QRect positionRect(const QWidget *, const QRenderRule&, const QRenderRule&, int,
const QRect&, Qt::LayoutDirection) const;
QRect positionRect(const QWidget *w, const QRenderRule &rule2, int pe,
const QRect &originRect, Qt::LayoutDirection dir) const;
mutable QCss::Parser parser;
void setPalette(QWidget *);
void unsetPalette(QWidget *);
void setProperties(QWidget *);
void setGeometry(QWidget *);
void unsetStyleSheetFont(QWidget *) const;
QList<QCss::StyleRule> styleRules(const QWidget *w) const;
bool hasStyleRule(const QWidget *w, int part) const;
QHash<QStyle::SubControl, QRect> titleBarLayout(const QWidget *w, const QStyleOptionTitleBar *tb) const;
QCss::StyleSheet getDefaultStyleSheet() const;
static Qt::Alignment resolveAlignment(Qt::LayoutDirection, Qt::Alignment);
static bool isNaturalChild(const QObject *obj);
static QPixmap loadPixmap(const QString &fileName, const QObject *context);
bool initWidget(const QWidget *w) const;
void renderMenuItemIcon(const QStyleOptionMenuItem *mi, QPainter *p, const QWidget *w,
const QRect &rect, QRenderRule &subRule) const;
public:
static int numinstances;
private:
Q_DISABLE_COPY_MOVE(QStyleSheetStyle)
Q_DECLARE_PRIVATE(QStyleSheetStyle)
};
class QStyleSheetStyleCaches : public QObject
{
Q_OBJECT
public Q_SLOTS:
void objectDestroyed(QObject *);
void styleDestroyed(QObject *);
public:
QHash<const QObject *, QList<QCss::StyleRule>> styleRulesCache;
QHash<const QObject *, QHash<int, bool> > hasStyleRuleCache;
typedef QHash<int, QHash<quint64, QRenderRule> > QRenderRules;
QHash<const QObject *, QRenderRules> renderRulesCache;
QHash<const void *, QCss::StyleSheet> styleSheetCache; // parsed style sheets
QSet<const QWidget *> autoFillDisabledWidgets;
// widgets with whose palettes and fonts we have tampered:
template <typename T>
struct Tampered {
T oldWidgetValue;
decltype(std::declval<T>().resolveMask()) resolveMask;
// only call this function on an rvalue *this (it mangles oldWidgetValue)
T reverted(T current)
#ifdef Q_COMPILER_REF_QUALIFIERS
&&
#endif
{
oldWidgetValue.setResolveMask(oldWidgetValue.resolveMask() & resolveMask);
current.setResolveMask(current.resolveMask() & ~resolveMask);
current.resolve(oldWidgetValue);
current.setResolveMask(current.resolveMask() | oldWidgetValue.resolveMask());
return current;
}
};
QHash<const QWidget *, Tampered<QPalette>> customPaletteWidgets;
QHash<const QWidget *, Tampered<QFont>> customFontWidgets;
};
template <typename T>
class QTypeInfo<QStyleSheetStyleCaches::Tampered<T>>
: public QTypeInfoMerger<QStyleSheetStyleCaches::Tampered<T>, T> {};
// Returns a QStyleSheet from the given style.
inline QStyleSheetStyle* qt_styleSheet(QStyle *style)
{
return qobject_cast<QStyleSheetStyle *>(style);
}
QT_END_NAMESPACE
#endif // QT_NO_STYLE_STYLESHEET
#endif
#endif // QSTYLESHEETSTYLE_P_H