Blind stab at a basic chart

piker/ui/qt/stackof_candle.py

@@ -0,0 +1,67 @@
+import sys
+
+from PySide2.QtCharts import QtCharts
+from PySide2.QtWidgets import QApplication, QMainWindow
+from PySide2.QtCore import Qt, QPointF
+from PySide2 import QtGui
+import qdarkstyle
+
+data = ((1, 7380, 7520, 7380, 7510, 7324),
+    (2, 7520, 7580, 7410, 7440, 7372),
+    (3, 7440, 7650, 7310, 7520, 7434),
+    (4, 7450, 7640, 7450, 7550, 7480),
+    (5, 7510, 7590, 7460, 7490, 7502),
+    (6, 7500, 7590, 7480, 7560, 7512),
+    (7, 7560, 7830, 7540, 7800, 7584))
+
+
+app = QApplication([])
+# set dark stylesheet
+# import pdb; pdb.set_trace()
+app.setStyleSheet(qdarkstyle.load_stylesheet_pyside())
+
+series = QtCharts.QCandlestickSeries()
+series.setDecreasingColor(Qt.darkRed)
+series.setIncreasingColor(Qt.darkGreen)
+
+ma5 = QtCharts.QLineSeries()  # 5-days average data line
+tm = []  # stores str type data
+
+# in a loop,  series and ma5 append corresponding data
+for num, o, h, l, c, m in data:
+    candle = QtCharts.QCandlestickSet(o, h, l, c)
+    series.append(candle)
+    ma5.append(QPointF(num, m))
+    tm.append(str(num))
+
+pen = candle.pen()
+# import pdb; pdb.set_trace()
+
+chart = QtCharts.QChart()
+
+# import pdb; pdb.set_trace()
+series.setBodyOutlineVisible(False)
+series.setCapsVisible(False)
+# brush = QtGui.QBrush()
+# brush.setColor(Qt.green)
+# series.setBrush(brush)
+chart.addSeries(series)  # candle
+chart.addSeries(ma5)  # ma5 line
+
+chart.setAnimationOptions(QtCharts.QChart.SeriesAnimations)
+chart.createDefaultAxes()
+chart.legend().hide()
+
+chart.axisX(series).setCategories(tm)
+chart.axisX(ma5).setVisible(False)
+
+view = QtCharts.QChartView(chart)
+view.chart().setTheme(QtCharts.QChart.ChartTheme.ChartThemeDark)
+view.setRubberBand(QtCharts.QChartView.HorizontalRubberBand)
+# chartview.chart().setTheme(QtCharts.QChart.ChartTheme.ChartThemeBlueCerulean)
+
+ui = QMainWindow()
+# ui.setGeometry(50, 50, 500, 300)
+ui.setCentralWidget(view)
+ui.show()
+sys.exit(app.exec_())