" Q_STATIC_ASSERT_X ( (std:: is_enum <Enum>::value), "QFlags is only usable on enumeration types. I have some flags defined as follows, using a scoped enum: enum class Capability : int { NoCapabilities = 0, SomethingCool = 1, UberCool = 1 << 1, EvenCooler = 1 << 2, }; Q_DECLARE_FLAGS( Capabilities, Capability ) Now, I am trying to use the equality operator: Capabilities(DataCapability::NoCapabilities) == Capability::NoCapabilities Q_DECLARE_PRIVATE. QFlags is used throughout Qt for storing combinations of enum values. friend constexpr const. , timer and network events) and other sources are processed and dispatched. The traditional C++ approach for storing OR-combinations of enum values is to use an int or uint. Q_DECLARE_FLAGS ( Flags, Enum) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags) Detailed Description The QFlags<Enum> class is a template class, where Enum is an. png stWhole"," \\image html selectiontype-singledata. Public Types Public Functions Macros Q_DECLARE_FLAGS ( Flags, Enum) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags) Detailed Description The QFlags class provides a type-safe way of storing OR-combinations of enum values. QFlags<Enum>是一个模板类，其中Enum是枚举类型，QFlags用于存储枚举值的组合。. If you want to use QFlags for your own enum types, use the Q_DECLARE_FLAGS () and Q_DECLARE_OPERATORS_FOR_FLAGS (). It takes the interface class's name as a parameter. GPL2 and LICENSE. staticMetaObject is of type QMetaObject and provides access to the enums declared with Q_ENUM_NS/Q_FLAG_NS. Q_DECLARE_OPERATORS_FOR_FLAGS (QMetaType::TypeFlags) namespace QtMetaTypePrivate {template < typename T, bool Accepted = true > struct QMetaTypeFunctionHelper Q_DECLARE_FLAGS ( Flags, Enum) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags) Detailed Description The QFlags<Enum> class is a template class, where Enum is an. png stSingleData Q_DECLARE_FLAGS(Flags, Enum)宏将普通结构体Enum重新定义成了一个可以自由进行与或非操作的安全的结构体Flags。Q_DECLARE_FLAG出现在Enum定义之后，且定义之后Enum和Flags是同时存在的； Q_DECLARE_OPERATORS_FOR_FLAGS(Flags)赋予了Flags一个全局操作符“|”，没有这个宏语句，Flags量. /** ** ** Copyright (C) 2015 The Qt Company Ltd. 如果尝试从另一个enum传递一个值或仅传递0以外的普通整数，则编译程序将报告一个错误。. [/quote] I can't. The inconvenience with this approach is that there's no type checking at all; any enum value can. The Q_DECLARE_PRIVATE macro must be put in the private section of the class's declaration. It's usually the case that you can find a class which it makes sense to "own" constants. The QFlags<Enum> class is a template class, where Enum is an enum type. This usually becomes simply. If yours has that name, you can use this macro. namespace Qt {. Current the only supported type info is QML_HAS_ATTACHED_PROPERTIES. " in other words: it is already there. The QFlags class provides a type-safe way of storing OR-combinations of enum values. I just tried to rewrite MyClass here it is: #include <QFlags> class MyClass { public: enum MyFlag { Yes, // default No }; Q_DECLARE_FLAGS(MyFlags, MyFlag) MyClass(){ flag. 简述 数据库里用到了枚举的存储，比如一个设备有两个状态，保持数据库和代码的可读性，当然是用枚举了，那就需要把枚举转成字符串存储进去，读的时候再转回来。 Qt Base (Core, Gui, Widgets, Network,. statementmacros: - q_declare_flags - q_declare_metatype - q_declare_operators_for_flags - q_object - q_property - q_unused - qt_require_version Just thinking out loud. To make the flags available for these purposes, the Q_FLAG() macro must be used: snippet code/src_corelib_global_qglobal. If I am correct Q_ENUMS depends on the QDeclarative mod. 用模板实现一个字符串枚举互转 3. Public Types Public Functions Macros Q_DECLARE_FLAGS ( Flags, Enum) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags) Detailed Description The QFlags. The namespace does not have a static QMetaObject to which the Qt MetaObject system can relate the enumeration. The Q_DECLARE_PRIVATE Macro. Detailed Description. If the returned value from QMetaEnum::keysToValue () is equal to the initial value, the initial value should be valid. ignoretokens or Cpp. h: #ifndef Q_MOC_RUN namespace #else class Q_CORE_EXPORT #endif Qt {. 用模板实现一个字符串枚举互转 3. To review, open the file in an editor. In the command. Learn more about Teams Get early access and see previews of new features. png stNone"," \\image html selectiontype-whole. 目录 1. The flag of Victoria with a gold field and red Southern Cross surmounted by St Edward's Crown. Share. Q_DECLARE_FLAGS (MapSettingsFlags, MapSettingsFlag) SIP_MONKEYPATCH_FLAGS_UNNEST(QgsMapSettings Map settings flags. Teams. The function can just be called by getFooBarMetaObject (); (without the FooBar:: that would be required if it was a static function instead of a friend). If you have looked into Qt source files like this one, you will find it generously sprinkled with Q_D and Q_Q macros. All documented Qt functions listed alphabetically with a link to where each one is declared. Recently cppcheck started failing for G-P, e. 2 用法示例 1. Q_DECLARE_FLAGS ( Flags, Enum) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags) Detailed Description The QFlags<Enum> class is a template class, where Enum is an enum type. 如果需要以非类型化方式将整数值强制转换为标志，则可以将显式QFlags构造程序用作强制转换操作符。. XML Word Printable. com) ** ** This. For example, document, view, and frame objects must support dynamic creation because the framework needs to create them dynamically. The given link is Registering C++ Types with the QML Type System. Equivalent to Q_DECLARE_METATYPE(TYPE *) and Q_DECLARE_METATYPE(QQmlListProperty<TYPE>) QML_DECLARE_TYPEINFO (Type, Flags) Declares additional properties of the given Type as described by the specified Flags. Add x11extras to the . 2 测试例子 3. 5, to separate headers, so that source code can include only what it needs, rather than the whole assortment. A Flags is an attribute that allows us to represent an enum as a collection of values rather than a single value. AFAIK registering enumus is not required. Do I have to locally declare orientation as a metatype?The Q_DECLARE_FLAGS() macro does not expose the flags to the meta-object system, so they cannot be used by Qt Script or edited in Qt Designer. ** Contact: ** ** This file is part of the QtLocation module of the Qt Toolkit. Export. QFlags<Enum>是一个模板类，其中Enum是枚举类型，QFlags用于存储枚举值的组合。. First post . The QFlags<Enum> class is a template class, where Enum is an enum type. "QFlags uses an int as storage, so an enum with underlying ". The Q_DECLARE_OPERATORS_FOR_FLAGS () macro declares global operator| () functions for Flags, which is of type QFlags<T> . 1 or newer. No, QMLThing. The Alignment type is a typedef for QFlags <AlignmentFlag>. 2 用法示例 1. Do I have to locally declare orientation as a metatype?Detailed Description. 10 and then gone in 5. Changes to Qt Core. 12. The backtrace leads back to the constructor of QNetworkAccessManager:I'm unit testing a function for a table model, where it emits 'headerDataChanged'. Code snippets and open source (free software) repositories are indexed and searchable. #define. For example, for your string reversal and stripping I. /** ** ** Copyright (C) 2015 The Qt Company Ltd. The QFlags class provides a type-safe way of storing OR-combinations of enum values. ( johannes and brahms , which don't start with a dash, are commandline arguments . Type: Task Resolution: Unresolved Priority: P3: Somewhat important . This uses the staticMetaObject of the class (as declared in the Q_OBJECT macro). ignoretokens variable makes QDoc ignore the specified non-standard constructs, within C++ source code. 传统的 C++ 编程中，通常使用整数来保存 enum 的逻辑运算结果 (与、或、非、异或等)，在进行逻辑运算的时候没有进行类型检查，一个枚举类型可以和其他的枚举类型进行逻辑运算，运算的结果可以直接传递给接收参数为整数的函数。 Qt 中，模板类 QFlags<Enum> 提供了类型安全的方式保存 enum 的逻辑. )Non flag enums has the same type and enum names. QMetaType::registerType: Binary compatibility break -- Type flags for type 'QList<QSslError>' [1062] don't match. static Document * load (const QString &filePath, const QByteArray &ownerPassword=QByteArray (), const QByteArray &userPassword=QByteArray ()) Load the document from a file on disk. 1代码 3. QFlags is used throughout Qt for storing combinations of enum values. The inconvenience with this approach is that there's no type checking at all; any enum value can. For namespaces use Q_FLAG_NS() instead. Q_DECLARE_FLAGS(Flags, Enum)宏将普通结构体Enum重新定义成了一个可以自由进行与或非操作的安全的结构体Flags。Q_DECLARE_FLAG出现在Enum定义之后，且定义之后Enum和Flags是同时存在的； Q_DECLARE_OPERATORS_FOR_FLAGS(Flags)赋予了Flags一个全局操作符“|”，没. By default, QDialog applies a flag (I'm not exactly sure which) that makes a question mark button appear in the top-right. The given link is Registering C++ Types with the QML Type System. First what does Q_DECLARE_FLAGS do? From the Qt documentation, this macro expands to, in this case:. To correct this, you must enable the namespace to participate in the Qt MetaObject system [1]. You can't register enums as a type of qml. pro","path":"TemplateCreator. Q_DECLARE_FLAGS (ProjectReadFlags, ProjectReadFlag) SIP_MONKEYPATCH_FLAGS_UNNEST(QgsProject Project load flags. Up to Qt 6. There are multiple way to achieve this, depending on Qt Version you are using and build system. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"TemplateCreator. You will find this (or something similar) in srccorelibglobalqnamespace. main. 'FrameFeature' was not declared in this scope Q_DECLARE_FLAGS(FrameFeatures, FrameFeature) ^. The function can just be called by getFooBarMetaObject (); (without the FooBar:: that would be required if it was a static function instead of a friend). Qt 6 is a result of the conscious effort to make the framework more efficient and easy to use. One of the fields in this signal is a 'Qt::Orientation' flag. The QFlags<Enum> class is a template class, where Enum is an enum type. cpp This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. The issue seems to be with the Q_DECLARE_OPERATORS_FOR_FLAGS declaration; if I remove it, the compilation issues with other flag types are resolved, but. In this topic we summarize those changes in Qt Core, and. 如果要为自己的enum类型. To get access to enum on QML side, you have to register it (cf. So, let’s see how we can implement the Flags attribute on enumeration: [Flags] public enum UserType { Customer = 1, Driver = 2, Admin = 4, }. The QFlags<E> class is a template class, where E is an enum type. The enum needs to. q_enum用法 2. At its heart it still is a C++ enum, just with a wrapper. QCoreApplication contains the main event loop, where all events from the operating system (e. Welcome to Her Majestie's Canadian Ship Quadra's 2018 presentation of the Ceremony of the Flags. For example, if we execute the ls -l command, the -l part of the command is a flag that we are passing as. QFlags is used throughout Qt for storing combinations of enum values. 12 so that makes sense if you had it in 5. 2. The default path list consists of one or two entries. I wasn't aware you were using C++11, then in that case, yes, the coma after the last item is valide. To make the flags available for this purpose, the Q_FLAGS () macro must be used. QFlags is used. /** ** ** Copyright (C) 2015 The Qt Company Ltd. Last post . For maximum portability, you should always try to use QEvent and QObject::installEventFilter() whenever possible. Q&A for work. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". Sorted by: 2. 目录 1. Thanks very much for your reply. The traditional C++ approach for storing OR-combinations of enum values is to use an int or uint variable. pro","contentType":"file"},{"name":"debug. {"payload":{"allShortcutsEnabled":false,"fileTree":{"src/corelib/tools":{"items":[{"name":"qalgorithms. c:93:1: warning: There is an unknown macro here somewhere. The QFlags <Enum> class is a template class, where Enum is an enum type. Qt Code: Switch view. To. Q_DECLARE_FLAGS ( Flags , Enum ) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags ) 详细描述 QFlags class provides a type-safe way of storing OR-combinations. The traditional C++ approach for storing OR-combinations of enum values is to use an int or uint variable. You may have to register before you can post: click the register link above to proceed. 传统的 C++ 编程中，通常使用整数来保存 enum 的逻辑运算结果 (与、或、非、异或等)，在进行逻辑运算的时候没有进行 类型. Q_DECLARE_FLAGS ( Flags, Enum) Q_DECLARE_OPERATORS_FOR_FLAGS ( Flags) Detailed Description The QFlags<Enum> class is a template class, where Enum is an. The QFlags<Enum> class is a template class, where Enum is an enum type. Enumeration Type documentation) Providing the Message class has been registered with the QML type system. fgrep -l -f /var/tmp/foo johannes brahms. QDir is missing Q_FLAGS call for the property "Filters" Log In. Before Qt 6. QML_DECLARE_TYPE. h as below: Q_FLAGS(SvBasicDemo::AccessTypes) Q_DECLARE_FLAGS(AccessTypes, AccessType) Q_DECLARE_OPERATORS_FOR_FLAGS(SvBasicDemo::AccessTypes) Is there something wrong in my code? Is there something to do with the namespace? The Cpp. 1. 5, <QtGlobal> defined an assortment of global declarations. ** Contact: ** ** This file is part of the QtCore module of the. // Foo. In the header file the flags are declared like this Q_DECLARE_FLAGS (WindowFlags, WindowType) More about this macro: Q_DECLARE_FLAGS. Declare new types with Q_DECLARE_METATYPE () to make them available to QVariant and other template-based functions. The inconvenience with this approach is that there's no type checking at all; any enum value can. g. This uses the staticMetaObject of the class (as declared in the Q_OBJECT macro). 1代码 3. 6. Normally we would need to create a instance of this class, pass it to the method and delete it ourselves in the pascal code. [static] bool QCoreApplication:: installTranslator (QTranslator *translationFile) Adds the translation file translationFile to the list of. With that we can now construct the Q_ENUM macro: #define Q_ENUM (ENUM) . There are lots of good reasons, like being able to see the value in the debugger: C++ - enum vs. 5, <QtGlobal> defined an assortment of global declarations. Enum names have the same scope as the type name. What is the d-pointer. It associates a type name to a type so that it can be created and destructed dynamically at run-time. #include <QtCore>. ignoredirectives variables, non-standard constructs (typically macros) can result in erroneous documentation. VALC is the correct syntax, and if you console. ** Contact: Nokia Corporation (qt-info@nokia. everything that has to be there is already present and this patch provides exact same functionality as original version - that was working before 6. Q_DECLARE_OPERATORS_FOR_FLAGS(FrameLess::Edges); Raw. This is used by QGraphicsAnchorLayout. The macro must be placed after the enum declaration. png stWhole"," \\image html selectiontype-singledata. Forums; Tutoriels; Magazine; FAQs; Blogs; Projets; Chat; Newsletter; Accueil Actualités IT Pro Conception Cycle de vie du logiciel ConceptionStack Overflow | The World’s Largest Online Community for DevelopersIf this is your first visit, be sure to check out the FAQ by clicking the link above. Take a look at these c++ codes : enum class Flag : int32 { f_unread = (1 << 0), f_out = (1 << 1), f_mentioned = (1 << 4), MAX_FIELD = (1 << 15), };. All reactionsNeat. /** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). Flags can be one of the following:点击查看代码 class Widget : public QWidget { Q_OBJECT public: enum languageType { inValidValue=0x0,//无效值（调用testFlag()时这个值是无效的，除0. . Details. Q&A for work. Poppler::Document::load. The declaration of the flags type is done using the Q_DECLARE_FLAGS() macro. If not specified by the Cpp. q_enum用法 2. This article unravels the purpose of these macros. . To refer to a name declared inside this Qt namespace (such as LeftDockWidgetArea ), you precede it with Qt::. To make the flags available for these purposes, the Q_FLAGS() macro must be. The Q_D and Q_Q macros are part of a design pattern called the d-pointer (also called the opaque pointer) where the implementation details of a library may be hidden. If you want to use QFlags for your own enum types, use the Q_DECLARE_FLAGS () and Q_DECLARE_OPERATORS_FOR_FLAGS (). See also isValid() and name(). The issue seems to be with the Q_DECLARE_OPERATORS_FOR_FLAGS declaration; if I remove it, the compilation issues with other flag types are resolved, but since this declares the operators for the flags, then the compiler won't accept the OR'd list. pro file: QT += gui x11extras. There are multiple way to achieve this, depending on Qt Version you are using and build system (qmake or cmake). #include <QDebug>. tx","path":". 简述 2. Q_DECLARE_FLAGS (Flags, Enum)宏展开为：. If path is empty or already in the path list, the path list is not changed. The qmlRegisterType<T> () function is only for classes that are derived from QObject. Alternatively, this file may be used under the terms of the GNU** General Public License version 2. The issue is that access to X11 and GDI handles were removed and then put back again in a slightly different place. If it has another name, maybe you should create a macro to make your code look nicer. Q_DECLARE_FLAGS(Flags, Enum) Q_DECLARE_FLAGS() マクロは次のように展開されます。 typedef QFlags<Enum> Flags; Enum は既存の列挙型の名前ですが、 Flags QFlags の名前です < Enum > typedef. If I click on the lightbulb, if I am lucky, it tells me to use noexcept instead. [static] void QCoreApplication:: addLibraryPath (const QString &path) Prepends path to the beginning of the library path list, ensuring that it is searched for libraries first. QFlags enforces that enum values can only be combined with. 15. tx","contentType. The class is used as a helper to marshall types in QVariant and in queued signals and slots connections. Connect and share knowledge within a single location that is structured and easy to search. . The draw back with this approach is the inability to type check the bitwise-or combination of enum values. The traditional C++ approach for storing bitwise-or combinations of enum values is to use an int or uint variable. null. To correct this, you must enable the namespace to participate in the Qt MetaObject system [1]. Reported. [static] template <typename T> QMetaEnum QMetaEnum:: fromType Returns the QMetaEnum corresponding to the type in the template parameter. The macro must be placed after the enum declaration. For example: namespace CollectEnums { Q_NAMESPACE enum class CELL_TYPE { Single = 0 , Multi, Nanoliter. Teams. See also QGraphicsAnchorLayout. It stores an OR combination of AlignmentFlag values. It is typically used in a class definition to declare that values of a given enum can be used as flags and combined using the bitwise OR operator. Set the title of the document to. I'm unit testing a function for a table model, where it emits 'headerDataChanged'. The traditional C++ approach for storing OR-combinations of enum values is to use an int or uint variable. 5, most Qt header files included <QtGlobal>. This is a handy macro that hides the ugly stuff for you. But I cannot make doxygen generate anything for Options . Q_DECLARE_TYPEINFO (Type, Flags) You can use this macro to specify information about a custom type Type. QFlags is used throughout Qt for storing combinations of enum values. 9-lts-lgpl Powered by. It also handles the application's initialization and finalization, as well as system-wide and application-wide settings. Previously registered TypeFlags(0x7), now registering TypeFlags(0x107). 958. If you need to cast integer values to flags in a untyped fashion, you can use the explicit QFlags constructor as cast operator. In the case of 16 (0b 0001 0000), an empty byte array is returned. The traditional C++ approach for storing OR-combinations of enum values is to use an int or uint variable. With accurate type information, Qt's generic containers can choose appropriate storage methods and algorithms. The Upper Canada Rebellion flag with two stars and the word "LIBERTY" written on top that most are already familiar with is currently used as the revolutionary. The first is the installation directory for. But some changes were inevitable in an effort to make Qt a better framework. Alot of methods have a QFlags Qt Class as a parameter. For namespaces use Q_FLAG_NS() instead. Thus if you get a 3 you know it both HasClaws( = 1) and CanFly(= 2). 2. It creates the d_func() function for you, using the variable called d_ptr. When Qt doesn't really have a place to put it, it just puts things in the namespace Qt:: Qt Declarative (Quick 2) about summary refs log tree commit diff stats QML_DECLARE_TYPE. 1 声明使用 2. png stSingleData Q_DECLARE_OPERATORS_FOR_FLAGS () 技术标签： Qt qt. When a QSignalSpy picks it up, the QVariant for the orientation field is an invalid one. The Q_DECLARE_FLAGS() macro does not expose the flags to the meta-object system, so they cannot be used by Qt Script or edited in Qt Designer. #ifndef SETTINGS_H #define SETTINGS_H #include <QObject> class Settings : public QObject { Q_OBJECT public: enum GestureType { Unknown, Left,. I have a class Login which inherits from. To make the flags available for these purposes, the Q_FLAG () macro must be used: 如果需要使用Qt容器，那么使用Q_DECLARE_TYPEINFO让Qt了解容器内元素的类型特征是一个不错的做法。因为Qt可以通过识别Q_DECLARE_TYPEINFO给定的类型特征，在容器中采用不同的算法和内存模型以达到计算速度和内存使用上的优化。 Q_DECLARE_TYPEINFO(Type, Flags)的使用非常简单，在定义了数据结构之后，通过指定. They are treated as normal ints. Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) Detailed Description. What Others Say About This Business: User (18/10/2018 03:52) Let’s help British Columbia Cadets hit 3K likes today! User (31/08/2018 23:08) 2018 Ceremony of the Flags -. The Ceremony of the Flags was created over 50 years ago,. Share. The QFlags<Enum> class is a template class, where Enum is an enum type. With accurate type information, Qt's generic containers can choose appropriate storage methods and algorithms. Detailed Description. 简述 数据库里用到了枚举的存储，比如一个设备有两个状态，保持数据库和代码的可读性，当然是用枚举了，那就需要把枚举转成字符串存储进去，读的时候再转. This function was introduced in Qt 6. Dynamic object creation enables you to create an object of a specified class at run time. typedef QFlags<Enum> Flags; Enum is the name of an existing enum type, whereas Flags is the name of the QFlags<Enum> typedef. enum MyFlag {. Bash Script: Flags usage with arguments examples. enum TextShapingFlag { RightToLeft = 0x0001, ReturnDesignMetrics = 0x0002 }; Q_DECLARE_FLAGS(TextShapingFlags, TextShapingFlag) virtual Capabilities capabilities() const = 0; virtual QVariant fontProperty(FontProperty property) const = 0; virtual bool convertStringToGlyphIndices(const QChar *string, int length, uint *glyphs, int. On a 64-bit machine in particular, but even on a 32-bit machine, you'd save space by using char name[12]; in place of a pointer. One of the fields in this signal is a 'Qt::Orientation' flag. png stNone"," \\image html selectiontype-whole. setFlag(Yes, false); bool b = flag. 5, most Qt header files included <QtGlobal>. Generated while processing qtbase/src/printsupport/dialogs/qprintpreviewdialog. Most of these have moved, at Qt 6. Learn more about TeamsIf this is your first visit, be sure to check out the FAQ by clicking the link above. To be able to pass all others types that do not derive from QObject within a QVariant to qml, use qRegisterMetaType<T>. namespace Qt {. Before Qt 6. Q_DECLARE_FLAGS (Flags, Enum)宏展开为：. If you want to use QFlags for your own enum types, use the Q_DECLARE_FLAGS () and Q_DECLARE_OPERATORS_FOR_FLAGS (). typedef QFlags<Enum> Flags; 1. This function was introduced in Qt 5. One way you can check the validity of the initial value is to convert the returned keys back to value using QMetaEnum::keysToValue (). enum Qt:: AnchorPoint Specifies a side of a layout item that can be anchored. The Q_DECLARE_FLAGS() macro does not expose the flags to the meta-object system, so they cannot be used by Qt Script or edited in Qt Designer. Flags can be one of the following: Q_DECLARE_OPERATORS_FOR_FLAGS(MyClass::Options) const int FontFlagsRole = Qt::UserRole + 1; //or some other offset Then, in your code where you toggle the value, you simply set an instance of this value as a custom data role (using QTableWidgetItem::setData()), and read it back from that role with data(). Q_DECLARE_OPERATORS_FOR_FLAGS that was fixed in 5. 1086 Q_DECLARE_FLAGS(SelectableParts, SelectablePart) 1087 1088 explicit QCPAxis(QCPAxisRect *parent, AxisType type); 1089 virtual ~QCPAxis(); 1090 1091. I have something like this (example from the QFlags documentation): public: //! Enum doc enum Option { NoOptions = 0x0, //! Value doc ShowTabs = 0x1, ShowAll = 0x2, }; Q_DECLARE_FLAGS (Options, Option) Now I can document Option and its values, and they will be displayed nicely by doxygen. \\image html selectiontype-none. Please amend it by providing examples of actual modifications you intend. github","contentType":"directory"},{"name":". Here is a code exemple: #include <QDebug> enum Pouet { F1 = 1, F2 = 2, F3 = 4, }; Q_DECLARE_FLAGS(Pouets, Pouet) Q_DECLARE_METATYPE(Pouets) Q_DECLARE_OPERATORS_FOR. You will find this (or something similar) in src\corelib\global\qnamespace. Go to my next postThis question lacks the necessary detail. 2 测试例子 3. ** All rights reserved. As attached in my original post, I use these macro following the code in qgraphicsview. ignoretokens = QAXFACTORY_EXPORT \ QM_EXPORT_CANVAS \. The Q_DECLARE_FLAGS() macro does not expose the flags to the meta-object system, so they cannot be used by Qt Script or edited in Qt Designer. Current the only supported type info is QML_HAS_ATTACHED_PROPERTIES which declares that the Type supports attached. Enumeration Type documentation) Providing the Message class has been registered with the QML type system. testFlag(Yes); // a == true flag. To make the flags available for these purposes, the Q_FLAG () macro must be used: The QFlags<Enum> class is a template class, where Enum is an enum type. If your enumeration. The problem is directly related to passing a number in QML into a slot with a QFlags argument. The Q_DECLARE_FLAGS() macro expands to. The following table lists the MFC macros that support run-time class information, serialization, and dynamic creation. . testFlag(Yes); // b == true flag. 0. /** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 詳細については、 QFlags のマニュアルを参照してください。 Q_DECLARE_OPERATORS_FOR_FLAGS も参照して. 1 声明使用 2. Equivalent to Q_DECLARE_METATYPE(TYPE *) and Q_DECLARE_METATYPE(QQmlListProperty<TYPE>) QML_DECLARE_TYPEINFO (Type, Flags) Declares additional properties of the given Type as described by the specified Flags. Poppler::Document::okToChange. If it represents a type, it returns QMetaType::Int. Q_ENUM宏引入自Qt5. The method str. 传统的 C++ 编程中，通常使用整数来保存 enum 的逻辑运算结果 (与、或、非、异或等)，在进行逻辑运算的时候没有进行类型检查，一个枚举类型可以和其他的枚举类型进行逻辑运算，运算的结果可以直接传递给接收参数为整数的函数。 Qt 中，模板类 QFlags<Enum> 提供了类型安全的方式保存 enum 的逻辑. ) summary refs log tree commit diff stats If you need to cast integer values to flags in a untyped fashion, you can use the explicit QFlags constructor as cast operator. typedef QFlags<SimpleFlag> MyFlags; So MyFlags is a particular instantiation of the QFlags class template provided by Qt. A regular expression consists of a pattern and optional flags: g, i, m, u, s, y. Equivalent to Q_DECLARE_METATYPE(TYPE *) and Q_DECLARE_METATYPE(QQmlListProperty<TYPE>) QML_DECLARE_TYPEINFO (Type, Flags) Declares additional properties of the given Type as described by the specified Flags. The formal way to describe them is by writing a series of Q_ASSERTs: one for the value of data on the original model, and one each for the item(s) synthesized by the proxy. h class Foo : public QObject { Q_OBJECT Q_PROPERTY (fooFlags flags READ flags WRITE setFlags NOTIFY flagsChanged) public: enum Flag { fast = 0x01, far = 0x02, furious = 0x07 };. typedef QFlags<Enum> Flags; 1. GPL3.