HistoryProxySource
#include <HistoryProxySource.h>

Public Types | |
enum | FillMode { DoNotFill, FillFromStart, FillFromEnd } |
Properties | |
FillMode | fillMode |
int | interval |
int | item |
int | maximumHistory |
ChartDataSource | source |
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objectName | |
Public Member Functions | |
HistoryProxySource (QObject *parent=nullptr) | |
Q_INVOKABLE void | clear () |
FillMode | fillMode () const |
Q_SIGNAL void | fillModeChanged () |
QVariant | first () const override |
int | interval () const |
Q_SIGNAL void | intervalChanged () |
QVariant | item (int index) const override |
int | item () const |
Q_SIGNAL void | itemChanged () |
int | itemCount () const override |
QVariant | maximum () const override |
int | maximumHistory () const |
Q_SIGNAL void | maximumHistoryChanged () |
QVariant | minimum () const override |
void | setFillMode (FillMode newFillMode) |
void | setInterval (int newInterval) |
void | setItem (int newItem) |
void | setMaximumHistory (int maximumHistory) |
void | setSource (ChartDataSource *newSource) |
ChartDataSource * | source () const |
Q_SIGNAL void | sourceChanged () |
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ChartDataSource (QObject *parent=nullptr) | |
Q_SIGNAL void | dataChanged () |
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QObject (QObject *parent) | |
bool | blockSignals (bool block) |
const QObjectList & | children () const const |
QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const |
void | deleteLater () |
void | destroyed (QObject *obj) |
bool | disconnect (const char *signal, const QObject *receiver, const char *method) const const |
bool | disconnect (const QObject *receiver, const char *method) const const |
void | dumpObjectInfo () |
void | dumpObjectInfo () const const |
void | dumpObjectTree () |
void | dumpObjectTree () const const |
QList< QByteArray > | dynamicPropertyNames () const const |
virtual bool | event (QEvent *e) |
virtual bool | eventFilter (QObject *watched, QEvent *event) |
T | findChild (const QString &name, Qt::FindChildOptions options) const const |
QList< T > | findChildren (const QString &name, Qt::FindChildOptions options) const const |
QList< T > | findChildren (const QRegExp ®Exp, Qt::FindChildOptions options) const const |
QList< T > | findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const |
bool | inherits (const char *className) const const |
void | installEventFilter (QObject *filterObj) |
bool | isWidgetType () const const |
bool | isWindowType () const const |
void | killTimer (int id) |
virtual const QMetaObject * | metaObject () const const |
void | moveToThread (QThread *targetThread) |
QString | objectName () const const |
void | objectNameChanged (const QString &objectName) |
QObject * | parent () const const |
QVariant | property (const char *name) const const |
Q_CLASSINFO (Name, Value) | |
Q_DISABLE_COPY (Class) | |
Q_DISABLE_COPY_MOVE (Class) | |
Q_DISABLE_MOVE (Class) | |
Q_EMIT Q_EMIT | |
Q_ENUM (...) | |
Q_ENUM_NS (...) | |
Q_ENUMS (...) | |
Q_FLAG (...) | |
Q_FLAG_NS (...) | |
Q_FLAGS (...) | |
Q_GADGET Q_GADGET | |
Q_INTERFACES (...) | |
Q_INVOKABLE Q_INVOKABLE | |
Q_NAMESPACE Q_NAMESPACE | |
Q_NAMESPACE_EXPORT (EXPORT_MACRO) | |
Q_OBJECT Q_OBJECT | |
Q_PROPERTY (...) | |
Q_REVISION Q_REVISION | |
Q_SET_OBJECT_NAME (Object) | |
Q_SIGNAL Q_SIGNAL | |
Q_SIGNALS Q_SIGNALS | |
Q_SLOT Q_SLOT | |
Q_SLOTS Q_SLOTS | |
T | qFindChild (const QObject *obj, const QString &name) |
QList< T > | qFindChildren (const QObject *obj, const QRegExp ®Exp) |
QList< T > | qFindChildren (const QObject *obj, const QString &name) |
T | qobject_cast (QObject *object) |
T | qobject_cast (const QObject *object) |
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
void | removeEventFilter (QObject *obj) |
void | setObjectName (const QString &name) |
void | setParent (QObject *parent) |
bool | setProperty (const char *name, const QVariant &value) |
bool | signalsBlocked () const const |
int | startTimer (int interval, Qt::TimerType timerType) |
int | startTimer (std::chrono::milliseconds time, Qt::TimerType timerType) |
QThread * | thread () const const |
Additional Inherited Members | |
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QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type) |
QMetaObject::Connection | connect (const QObject *sender, PointerToMemberFunction signal, Functor functor) |
QMetaObject::Connection | connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type) |
bool | disconnect (const QMetaObject::Connection &connection) |
bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method) |
bool | disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method) |
bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method) |
QString | tr (const char *sourceText, const char *disambiguation, int n) |
QString | trUtf8 (const char *sourceText, const char *disambiguation, int n) |
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typedef | QObjectList |
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virtual void | childEvent (QChildEvent *event) |
virtual void | connectNotify (const QMetaMethod &signal) |
virtual void | customEvent (QEvent *event) |
virtual void | disconnectNotify (const QMetaMethod &signal) |
bool | isSignalConnected (const QMetaMethod &signal) const const |
int | receivers (const char *signal) const const |
QObject * | sender () const const |
int | senderSignalIndex () const const |
virtual void | timerEvent (QTimerEvent *event) |
Detailed Description
A data source that provides a history of a single item of a different data source.
This data source will monitor a single item of another data source for changes and record them, exposing historical values as
Definition at line 24 of file HistoryProxySource.h.
Member Enumeration Documentation
The different fill modes.
These determine the value returned by itemCount and what happens when requesting an item that does not have a value in the history.
Enumerator | |
---|---|
DoNotFill |
Do not fill with any items. The source's itemCount will be equal to the number of items in the history. |
FillFromStart |
Fill with empty values, starting at 0. The source's itemCount will be equal to maximumHistory. Items that do not have a value in the history will return a default-constructed value based on the first item of the source. |
FillFromEnd |
Fill with empty values, placing partial history at the end. This means that the first recorded history item will be shown at position |
Definition at line 84 of file HistoryProxySource.h.
Property Documentation
|
readwrite |
The fill mode.
This determines what happens when there is not enough history yet. See FillMode for which modes are available.
The default is DoNotFill.
- Note
- Changing this property will clear the existing history.
Definition at line 75 of file HistoryProxySource.h.
|
readwrite |
The interval, in milliseconds, with which to query the data source.
If set to a value <= 0, a new item will be added whenever source changes. Otherwise, source will be sampled every interval milliseconds and a new item will be added with whatever value it has at that point, even if it did not change.
The default is 0.
Definition at line 64 of file HistoryProxySource.h.
|
readwrite |
The item of the data source to read data from.
This item will be read either when the source's dataChanged has been emitted or on an interval if interval has been set.
The default is 0.
- Note
- Changing this property will clear the existing history.
Definition at line 47 of file HistoryProxySource.h.
|
readwrite |
The maximum amount of history to keep.
The default is 10.
Definition at line 53 of file HistoryProxySource.h.
|
readwrite |
The data source to read data from.
This will use the item at item from the provided source and use that to fill the history of this source.
- Note
- Changing this property will clear the existing history.
Definition at line 36 of file HistoryProxySource.h.
Member Function Documentation
void HistoryProxySource::clear | ( | ) |
Clear the entire history of this source.
Definition at line 210 of file HistoryProxySource.cpp.
The documentation for this class was generated from the following files:
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