The QCandlestickSeries class presents data as candlesticks. 更多...
头: | #include <QCandlestickSeries> |
Since: | Qt 5.8 |
实例化: | CandlestickSeries |
继承: | QAbstractSeries |
|
|
QCandlestickSeries (QObject * parent = nullptr) | |
virtual | ~QCandlestickSeries () |
bool | append (QCandlestickSet * set ) |
bool | append (const QList<QCandlestickSet *> & sets ) |
bool | bodyOutlineVisible () const |
qreal | bodyWidth () const |
QBrush | brush () const |
bool | capsVisible () const |
qreal | capsWidth () const |
void | clear () |
int | count () const |
QColor | decreasingColor () const |
QColor | increasingColor () const |
bool | insert (int index , QCandlestickSet * set ) |
qreal | maximumColumnWidth () const |
qreal | minimumColumnWidth () const |
QPen | pen () const |
bool | remove (QCandlestickSet * set ) |
bool | remove (const QList<QCandlestickSet *> & sets ) |
void | setBodyOutlineVisible (bool bodyOutlineVisible ) |
void | setBodyWidth (qreal bodyWidth ) |
void | setBrush (const QBrush & brush ) |
void | setCapsVisible (bool capsVisible ) |
void | setCapsWidth (qreal capsWidth ) |
void | setDecreasingColor (const QColor & decreasingColor ) |
void | setIncreasingColor (const QColor & increasingColor ) |
void | setMaximumColumnWidth (qreal maximumColumnWidth ) |
void | setMinimumColumnWidth (qreal minimumColumnWidth ) |
void | setPen (const QPen & pen ) |
QList<QCandlestickSet *> | sets () const |
bool | take (QCandlestickSet * set ) |
virtual QAbstractSeries::SeriesType | type () const override |
void | bodyOutlineVisibilityChanged () |
void | bodyWidthChanged () |
void | brushChanged () |
void | candlestickSetsAdded (const QList<QCandlestickSet *> & sets ) |
void | candlestickSetsRemoved (const QList<QCandlestickSet *> & sets ) |
void | capsVisibilityChanged () |
void | capsWidthChanged () |
void | clicked (QCandlestickSet * set ) |
void | countChanged () |
void | decreasingColorChanged () |
void | doubleClicked (QCandlestickSet * set ) |
void | hovered (bool status , QCandlestickSet * set ) |
void | increasingColorChanged () |
void | maximumColumnWidthChanged () |
void | minimumColumnWidthChanged () |
void | penChanged () |
void | pressed (QCandlestickSet * set ) |
void | released (QCandlestickSet * set ) |
This class acts as a container for single candlestick items. Each item is drawn to its own category when using QBarCategoryAxis . QDateTimeAxis and QValueAxis can be used as alternatives to QBarCategoryAxis . In this case, each candlestick item is drawn according to its timestamp value.
注意: The timestamps must be unique within a QCandlestickSeries. When using QBarCategoryAxis , only the first one of the candlestick items sharing a timestamp is drawn. If the chart includes multiple instances of QCandlestickSeries, items from different series sharing a timestamp are drawn to the same category. When using QValueAxis or QDateTimeAxis , candlestick items sharing a timestamp will overlap each other.
见 candlestick chart example to learn how to create a candlestick chart.
另请参阅 QCandlestickSet , QBarCategoryAxis , QDateTimeAxis ,和 QValueAxis .
This property holds the visibility of the candlestick body outline.
访问函数:
bool | bodyOutlineVisible () const |
void | setBodyOutlineVisible (bool bodyOutlineVisible ) |
通知程序信号:
void | bodyOutlineVisibilityChanged () |
This property holds the relative width of the candlestick item within its own slot, in the range from 0.0 to 1.0.
Values outside this range are clamped to 0.0 or 1.0.
访问函数:
qreal | bodyWidth () const |
void | setBodyWidth (qreal bodyWidth ) |
通知程序信号:
void | bodyWidthChanged () |
This property holds the brush used to fill the candlestick items.
访问函数:
QBrush | brush () const |
void | setBrush (const QBrush & brush ) |
通知程序信号:
void | brushChanged () |
This property holds the visibility of the caps.
访问函数:
bool | capsVisible () const |
void | setCapsVisible (bool capsVisible ) |
通知程序信号:
void | capsVisibilityChanged () |
This property holds the relative width of the caps within a candlestick, in the range from 0.0 to 1.0.
Values outside this range are clamped to 0.0 or 1.0.
访问函数:
qreal | capsWidth () const |
void | setCapsWidth (qreal capsWidth ) |
通知程序信号:
void | capsWidthChanged () |
[read-only]
count
: const
int
This property holds the number of candlestick items in a series.
访问函数:
int | count () const |
通知程序信号:
void | countChanged () |
This property holds the color of the decreasing candlestick item body.
A candlestick is decreasing when its open value is higher than the close value. By default, this property is set to the brush color with the alpha channel set to 128. The default color is used also when the property is set to an invalid color value.
访问函数:
QColor | decreasingColor () const |
void | setDecreasingColor (const QColor & decreasingColor ) |
通知程序信号:
void | decreasingColorChanged () |
This property holds the color of the increasing candlestick item body.
A candlestick is increasing when its close value is higher than the open value. By default, this property is set to the brush color. The default color is used also when the property is set to an invalid color value.
访问函数:
QColor | increasingColor () const |
void | setIncreasingColor (const QColor & increasingColor ) |
通知程序信号:
void | increasingColorChanged () |
This property holds the maximum width of the candlestick items in pixels. Setting a negative value means there is no maximum width. All negative values are converted to -1.0.
访问函数:
qreal | maximumColumnWidth () const |
void | setMaximumColumnWidth (qreal maximumColumnWidth ) |
通知程序信号:
void | maximumColumnWidthChanged () |
This property holds the minimum width of the candlestick items in pixels. Setting a negative value means there is no minimum width. All negative values are converted to -1.0.
访问函数:
qreal | minimumColumnWidth () const |
void | setMinimumColumnWidth (qreal minimumColumnWidth ) |
通知程序信号:
void | minimumColumnWidthChanged () |
This property holds the pen used to draw the lines of the candlestick items.
访问函数:
QPen | pen () const |
void | setPen (const QPen & pen ) |
通知程序信号:
void | penChanged () |
Constructs an empty QCandlestickSeries. The parent is optional.
[signal]
void
QCandlestickSeries::
bodyOutlineVisibilityChanged
()
This signal is emitted when the visibility of the candlestick item body outline changes.
注意: 通知程序信号对于特性 bodyOutlineVisible .
另请参阅 bodyOutlineVisible .
[signal]
void
QCandlestickSeries::
bodyWidthChanged
()
This signal is emitted when the candlestick item width changes.
注意: 通知程序信号对于特性 bodyWidth .
另请参阅 bodyWidth .
[signal]
void
QCandlestickSeries::
brushChanged
()
This signal is emitted when the candlestick item brush changes.
注意: 通知程序信号对于特性 brush .
另请参阅 brush .
[signal]
void
QCandlestickSeries::
candlestickSetsAdded
(const
QList
<
QCandlestickSet
*> &
sets
)
This signal is emitted when the candlestick items specified by sets are added to the series.
[signal]
void
QCandlestickSeries::
candlestickSetsRemoved
(const
QList
<
QCandlestickSet
*> &
sets
)
This signal is emitted when the candlestick items specified by sets are removed from the series.
[signal]
void
QCandlestickSeries::
capsVisibilityChanged
()
This signal is emitted when the visibility of the candlestick item caps changes.
注意: 通知程序信号对于特性 capsVisible .
另请参阅 capsVisible .
[signal]
void
QCandlestickSeries::
capsWidthChanged
()
This signal is emitted when the candlestick item caps width changes.
注意: 通知程序信号对于特性 capsWidth .
另请参阅 capsWidth .
[signal]
void
QCandlestickSeries::
clicked
(
QCandlestickSet
*
set
)
This signal is emitted when the candlestick item specified by set is clicked on the chart.
[signal]
void
QCandlestickSeries::
countChanged
()
This signal is emitted when the number of candlestick items in the series changes.
注意: 通知程序信号对于特性 count .
另请参阅 count .
[signal]
void
QCandlestickSeries::
decreasingColorChanged
()
This signal is emitted when the candlestick item decreasing color changes.
注意: 通知程序信号对于特性 decreasingColor .
另请参阅 decreasingColor .
[signal]
void
QCandlestickSeries::
doubleClicked
(
QCandlestickSet
*
set
)
This signal is emitted when the candlestick item specified by set is double-clicked on the chart.
[signal]
void
QCandlestickSeries::
hovered
(
bool
status
,
QCandlestickSet
*
set
)
This signal is emitted when a mouse is hovered over the candlestick item specified by set in a chart.
When the mouse moves over the item,
status
turns
true
, and when the mouse moves away again, it turns
false
.
[signal]
void
QCandlestickSeries::
increasingColorChanged
()
This signal is emitted when the candlestick item increasing color changes.
注意: 通知程序信号对于特性 increasingColor .
另请参阅 increasingColor .
[signal]
void
QCandlestickSeries::
maximumColumnWidthChanged
()
This signal is emitted when there is a change in the maximum column width of candlestick items.
注意: 通知程序信号对于特性 maximumColumnWidth .
另请参阅 maximumColumnWidth .
[signal]
void
QCandlestickSeries::
minimumColumnWidthChanged
()
This signal is emitted when there is a change in the minimum column width of candlestick items.
注意: 通知程序信号对于特性 minimumColumnWidth .
另请参阅 minimumColumnWidth .
[signal]
void
QCandlestickSeries::
penChanged
()
This signal is emitted when the candlestick item pen changes.
注意: 通知程序信号对于特性 pen .
另请参阅 pen .
[signal]
void
QCandlestickSeries::
pressed
(
QCandlestickSet
*
set
)
This signal is emitted when the user clicks the candlestick item specified by set and holds down the mouse button.
[signal]
void
QCandlestickSeries::
released
(
QCandlestickSet
*
set
)
This signal is emitted when the user releases the mouse press on the candlestick item specified by set .
[virtual]
QCandlestickSeries::
~QCandlestickSeries
()
Destroys the series. Removes the series from the chart.
Adds a single candlestick item specified by
set
to the series and takes ownership of it. If the item is null or it is already in the series, it is not appended. Returns
true
if appending succeeded,
false
否则。
Adds a list of candlestick items specified by
sets
to the series and takes ownership of it. If any of the items are null, already belong to the series, or appear in the list more than once, nothing is appended. Returns
true
if all items were appended successfully,
false
否则。
Removes all candlestick items from the series and permanently deletes them.
Returns the number of the candlestick items in the series.
注意: Getter 函数对于特性 count。
Inserts the candlestick item specified by
set
to the series at the position specified by
index
. Takes ownership of the item. If the item is null or already belongs to the series, it is not inserted. Returns
true
if inserting succeeded,
false
否则。
Removes a single candlestick item, specified by
set
, from the series. Returns
true
if the item is successfully deleted,
false
否则。
Removes a list of candlestick items specified by
sets
from the series. If any of the items are null, were already removed from the series, or appear in the list more than once, nothing is removed. Returns
true
if all items were removed successfully,
false
否则。
Returns the list of candlestick items in the series. Ownership of the items does not change.
Takes a single candlestick item, specified by
set
, from the series. Does not delete the item. Returns
true
if the take operation was successful,
false
否则。
注意: The series remains the item's parent object. You must set the parent object to take full ownership.
[override virtual]
QAbstractSeries::SeriesType
QCandlestickSeries::
type
() const
重实现访问函数为特性: QAbstractSeries::type .
Returns the type of the series ( QAbstractSeries::SeriesTypeCandlestick ).