1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #include <QtWidgets/private/qtwidgetsglobal_p.h> 41 #include <QtCore/qpoint.h> 42 #include <QtCore/qstring.h> 43 #include <QtGui/qpaintdevice.h> 44 #include <QtGui/qpolygon.h> 45 #include <QtCore/qstringbuilder.h> 46 #include <QtGui/qaccessible.h> 47 48 #ifndef QSTYLEHELPER_P_H 49 #define QSTYLEHELPER_P_H 50 51 // 52 // W A R N I N G 53 // ------------- 54 // 55 // This file is not part of the Qt API. It exists purely as an 56 // implementation detail. This header file may change from version to 57 // version without notice, or even be removed. 58 // 59 // We mean it. 60 // 61 62 #include <private/qhexstring_p.h> 63 64 QT_BEGIN_NAMESPACE 65 66 class QColor; 67 class QObject; 68 class QPainter; 69 class QPalette; 70 class QPixmap; 71 class QStyleOptionSlider; 72 class QStyleOption; 73 class QWidget; 74 class QWindow; 75 76 namespace QStyleHelper 77 { 78 QString uniqueName(const QString &key, const QStyleOption *option, const QSize &size); 79 80 Q_WIDGETS_EXPORT qreal dpi(const QStyleOption *option); 81 82 Q_WIDGETS_EXPORT qreal dpiScaled(qreal value, qreal dpi); 83 Q_WIDGETS_EXPORT qreal dpiScaled(qreal value, const QPaintDevice *device); 84 Q_WIDGETS_EXPORT qreal dpiScaled(qreal value, const QStyleOption *option); 85 86 #if QT_CONFIG(dial) 87 qreal angle(const QPointF &p1, const QPointF &p2); 88 QPolygonF calcLines(const QStyleOptionSlider *dial); 89 int calcBigLineSize(int radius); 90 Q_WIDGETS_EXPORT void drawDial(const QStyleOptionSlider *dial, QPainter *painter); 91 #endif //QT_CONFIG(dial) 92 Q_WIDGETS_EXPORT void drawBorderPixmap(const QPixmap &pixmap, QPainter *painter, const QRect &rect, 93 int left = 0, int top = 0, int right = 0, 94 int bottom = 0); 95 #ifndef QT_NO_ACCESSIBILITY 96 Q_WIDGETS_EXPORT bool isInstanceOf(QObject *obj, QAccessible::Role role); 97 Q_WIDGETS_EXPORT bool hasAncestor(QObject *obj, QAccessible::Role role); 98 #endif 99 Q_WIDGETS_EXPORT QColor backgroundColor(const QPalette &pal, const QWidget* widget = nullptr); 100 101 enum WidgetSizePolicy { SizeLarge = 0, SizeSmall = 1, SizeMini = 2, SizeDefault = -1 }; 102 103 Q_WIDGETS_EXPORT WidgetSizePolicy widgetSizePolicy(const QWidget *w, const QStyleOption *opt = nullptr); 104 } 105 106 107 QT_END_NAMESPACE 108 109 #endif // QSTYLEHELPER_P_H 110