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uiCrosshair.py
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# -*- coding: utf-8 -*-
import datetime as dt
import pyqtgraph as pg
from pyqtgraph.Point import Point
from PySide6 import QtCore
from tqsdk import tafunc
########################################################################
# 十字光标类
########################################################################
class Crosshair(QtCore.QObject):
"""
此类给pg.PlotWidget()添加crossHair功能,PlotWidget实例需要初始化时传入
"""
signal = QtCore.Signal(float, float)
signalInfo = QtCore.Signal(float, float)
# ----------------------------------------------------------------------
def __init__(self, parent, master):
"""Constructor"""
self.__view = parent
self.master = master
super(Crosshair, self).__init__()
self.datas = None
self.xAxis = 0
self.yAxis = 0
self.yAxises = [0 for i in range(3)]
self.leftX = [0 for i in range(3)]
self.showHLine = [False for i in range(3)]
self.text_Y_volume = [pg.TextItem('', anchor=(1, 1)) for i in range(3)]
self.views = [parent.centralWidget.getItem(i + 1, 0) for i in range(3)]
self.rects = [self.views[i].sceneBoundingRect() for i in range(3)]
self.vLines = [pg.InfiniteLine(angle=90, movable=False) for i in range(3)]
self.hLines = [pg.InfiniteLine(angle=0, movable=False) for i in range(3)]
# mid 在y轴动态跟随最新价显示最新价和最新时间
self.__text_X_date = pg.TextItem('X_date', anchor=(1, 1))
self.__text_label_Info = pg.TextItem('lastBarInfo', anchor=(0, 1))
self.__text_Ind_Info = pg.TextItem('lastIndInfo')
self.__text_Volume_Info = pg.TextItem('lastBarVolume')
self.__text_MACD_Info = pg.TextItem('lastMACDInfo')
self.__text_X_date.setZValue(20)
self.__text_label_Info.setZValue(20)
self.__text_Ind_Info.setZValue(20)
self.__text_MACD_Info.setZValue(20)
self.__text_Volume_Info.setZValue(20)
self.__text_label_Info.border = pg.mkPen(color=(230, 255, 0, 255), width=0)
for i in range(3):
self.text_Y_volume[i].setZValue(20)
self.vLines[i].setPos(20)
self.hLines[i].setPos(20)
self.vLines[i].setZValue(20)
self.hLines[i].setZValue(20)
self.views[i].setZValue(20)
self.views[i].addItem(self.vLines[i])
self.views[i].addItem(self.hLines[i])
self.views[i].addItem(self.text_Y_volume[i])
self.views[0].addItem(self.__text_label_Info, ignoreBounds=True)
self.views[0].addItem(self.__text_Ind_Info, ignoreBounds=True)
self.views[1].addItem(self.__text_Volume_Info, ignoreBounds=True)
self.views[2].addItem(self.__text_MACD_Info, ignoreBounds=True)
self.views[2].addItem(self.__text_X_date, ignoreBounds=True)
self.proxy = pg.SignalProxy(self.__view.scene().sigMouseMoved, rateLimit=360, slot=self.__mouseMoved)
# 跨线程刷新界面支持
self.signal.connect(self.update)
self.signalInfo.connect(self.plotInfo)
def update(self, x, y):
"""刷新界面显示"""
xAxis = x
yAxis = y
if xAxis is None:
xAxis, yAxis = (self.xAxis, self.yAxis)
else:
xAxis, yAxis = (x, y)
self.moveTo(xAxis, yAxis)
def __mouseMoved(self, evt):
"""鼠标移动回调"""
pos = evt[0]
self.rects = [self.views[i].sceneBoundingRect() for i in range(3)]
for i in range(3):
self.showHLine[i] = False
if self.rects[i].contains(pos):
mousePoint = self.views[i].vb.mapSceneToView(pos)
xAxis = mousePoint.x()
yAxis = mousePoint.y()
self.yAxises[i] = yAxis
self.showHLine[i] = True
self.moveTo(xAxis, yAxis)
def moveTo(self, xAxis, yAxis):
if xAxis is None:
xAxis, yAxis = (self.xAxis, self.yAxis)
else:
xAxis, yAxis = (int(xAxis), yAxis)
self.rects = [self.views[i].sceneBoundingRect() for i in range(3)]
if not xAxis or not yAxis:
return
self.xAxis = xAxis
self.yAxis = yAxis
self.vhLinesSetXY(xAxis, yAxis)
self.plotInfo(xAxis, yAxis)
self.master.candle.update()
def vhLinesSetXY(self, xAxis, yAxis):
"""水平和竖线位置设置"""
for i in range(3):
self.vLines[i].setPos(xAxis)
if self.showHLine[i]:
self.hLines[i].setPos(yAxis if i == 0 else self.yAxises[i])
self.hLines[i].show()
else:
self.hLines[i].hide()
def plotInfo(self, xAxis, yAxis):
"""
被嵌入的plotWidget在需要的时候通过调用此方法显示K线信息
"""
if self.datas is None:
return
try:
# 获取K线数据
data = self.datas.loc[xAxis]
lastdata = self.datas.loc[xAxis - 1]
# 用天勤自带的时间转换函数将时间截转换成datetime格式
tickDatetime = tafunc.time_to_datetime(data['datetime'])
openPrice = data['open']
closePrice = data['close']
lowPrice = data['low']
highPrice = data['high']
volume = int(data['volume'])
preClosePrice = lastdata['close']
diff = data['diff']
dea = data['dea']
bar = data['bar']
mv1 = data['mv1']
mv2 = data['mv2']
pb1 = data['pb1']
pb2 = data['pb2']
pb3 = data['pb3']
pb4 = data['pb4']
pb5 = data['pb5']
pb6 = data['pb6']
except Exception as e:
return
if (isinstance(tickDatetime, dt.datetime)):
dateText = dt.datetime.strftime(tickDatetime, '%m-%d')
timeText = dt.datetime.strftime(tickDatetime, '%H:%M')
if tickDatetime.hour: # 日内周期
datetimeText = dt.datetime.strftime(tickDatetime, '%m-%d %H:%M')
else: # 日线及以上周期
datetimeText = dt.datetime.strftime(tickDatetime, '%Y-%m-%d')
else:
datetimeText = ""
dateText = ""
timeText = ""
# 显示高开低收及日期
# 和上一个收盘价比较，决定K线信息的字符颜色
cOpen = 'rgb(255,0,0)' if openPrice > preClosePrice else 'rgb(0,255,0)'
cClose = 'rgb(255,0,0)' if closePrice > preClosePrice else 'rgb(0,255,0)'
cHigh = 'rgb(255,0,0)' if highPrice > preClosePrice else 'rgb(0,255,0)'
cLow = 'rgb(255,0,0)' if lowPrice > preClosePrice else 'rgb(0,255,0)'
self.__text_label_Info.setHtml(u'<div style="text-align: center; background-color:rgb(13,9,27)">\
<span style="color: rgb(255,255,255); font-size: 14px;">日期:</span><br>\
<span style="color: rgb(0,255,255); font-size: 14px;">%s</span><br><br>\
<span style="color: rgb(255,255,255); font-size: 14px;">时间:</span><br>\
<span style="color: rgb(0,255,255); font-size: 14px;">%s</span><br><br>\
<span style="color: rgb(255,255,255); font-size: 14px;">开盘:</span><br>\
<span style="color: %s; font-size: 14px;">%.1f</span><br>\
<span style="color: rgb(255,255,255); font-size: 14px;">最高:</span><br>\
<span style="color: %s; font-size: 14px;">%.1f</span><br>\
<span style="color: rgb(255,255,255); font-size: 14px;">最低:</span><br>\
<span style="color: %s; font-size: 14px;">%.1f</span><br>\
<span style="color: rgb(255,255,255); font-size: 14px;">收盘:</span><br>\
<span style="color: %s; font-size: 14px;">%.1f</span><br><br>\
<span style="color: rgb(255,255,255); font-size: 14px;">成交量:</span><br>\
<span style="color: rgb(0,255,255); font-size: 14px;">%d</span><br>\
</div>' % (dateText, timeText, cOpen, openPrice, cHigh, highPrice, cLow, lowPrice, cClose, closePrice, volume))
# 显示纵轴时间
# 显示所有的主图技术指标,六条瀑布线
self.__text_Ind_Info.setHtml(u'<div style="text-align: center; background-color:rgb(13,9,27)">\
<span style="color: rgb(255,255,0); font-size: 14px;"> 瀑布线指标(3,4,9,13,18,24)--> </span>\
<span style="color: rgb(255,255,255); font-size: 14px;"> PB1: %.1f </span>\
<span style="color: rgb(255,85,0); font-size: 14px;"> PB2: %.1f </span>\
<span style="color: rgb(255,0,127); font-size: 14px;"> PB3: %.1f </span>\
<span style="color: rgb(0,255,0); font-size: 14px;"> PB4: %.1f </span>\
<span style="color: rgb(255,0,0); font-size: 14px;"> PB5: %.1f </span>\
<span style="color: rgb(60,60,255); font-size: 14px;"> PB6: %.1f </span>'
'</div>' % (pb1, pb2, pb3, pb4, pb5, pb6))
# 显示成交量及均量
self.__text_Volume_Info.setHtml(u'<div style="text-align: center; ">\
<span style="color: rgb(255,255,0); font-size: 14px;"> 成交量(5,20)--> </span>\
<span style="color: rgb(255,0,255); font-size: 14px;"> Vol: %.1f </span>\
<span style="color: rgb(60,60,255); font-size: 14px;"> ma5: %.1f </span>\
<span style="color: rgb(255,0,127); font-size: 14px;"> ma20: %.1f </span>'
'</div>' % (volume, mv1, mv2))
# 显示macd技术指标
self.__text_MACD_Info.setHtml(u'<div style="text-align: center; ">\
<span style="color: rgb(255,255,0); font-size: 14px;"> MACD(12,6,9)--> </span>\
<span style="color: rgb(255,0,255); font-size: 14px;"> diff: %.1f </span>\
<span style="color: rgb(60,60,255); font-size: 14px;"> dea: %.1f </span>\
<span style="color: rgb(255,0,127); font-size: 14px;"> bar: %.1f </span>'
'</div>' % (diff, dea, bar))
# 坐标轴宽度
rightAxisWidth = self.views[0].getAxis('right').width()
bottomAxisHeight = self.views[2].getAxis('bottom').height()
offset = QtCore.QPointF(rightAxisWidth, bottomAxisHeight)
# 各个顶点
tl = [self.views[i].vb.mapSceneToView(self.rects[i].topLeft()) for i in range(3)]
# 调试中获得的tl值为:
# [PySide6.QtCore.QPointF(3493.702783, 727.623408),
# PySide6.QtCore.QPointF(3493.702783, 110144.265625),
# PySide6.QtCore.QPointF(3493.702783, 7.519954)]
br = [self.views[i].vb.mapSceneToView(self.rects[i].bottomRight() - offset) for i in range(3)]
# 调试中获得的br值为:
# [PySide6.QtCore.QPointF(3602.111762, 667.376592),
# PySide6.QtCore.QPointF(3602.111762, 2612.734375),
# PySide6.QtCore.QPointF(3602.111762, -3.606918)]
# 设置s标签信息坐标
self.__text_label_Info.setPos(tl[0].x(), br[0].y())
self.__text_Ind_Info.setPos(tl[0].x(), tl[0].y())
self.__text_Volume_Info.setPos(tl[0].x(), tl[1].y())
self.__text_MACD_Info.setPos(tl[0].x(), tl[2].y())
# 修改对称方式防止遮挡
if xAxis > self.master.index:
self.__text_X_date.setPos(xAxis, br[2].y())
self.__text_X_date.anchor = Point((1, 1))
self.__text_label_Info.setPos(tl[0].x(), br[0].y())
self.__text_label_Info.anchor = Point((0, 1))
self.text_Y_volume[0].setPos(br[0].x(), yAxis)
self.text_Y_volume[0].anchor = Point(1, 1)
else:
self.__text_X_date.setPos(xAxis, br[2].y())
self.__text_X_date.anchor = Point((0, 1))
self.__text_label_Info.setPos(br[0].x(), br[0].y())
self.__text_label_Info.anchor = Point((1, 1))
self.text_Y_volume[0].setPos(tl[0].x(), yAxis)
self.text_Y_volume[0].anchor = Point(0, 1)
# 显示Y轴价格
self.text_Y_volume[0].setHtml('<div style="text-align: right">\
<span style="color: yellow; font-size: 16px;">%0.1f</span>\
</div>' % (yAxis))
# 显示X轴时间
self.__text_X_date.setHtml('<div style="text-align: center">\
<span style="color: yellow; font-size: 16px;">%s</span>\
</div>' % (datetimeText))