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Xevion
184
ComplexTreeView.py
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184
ComplexTreeView.py
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# Reference: http://pythonbeginners.com/python-beginner-tutorial/python-tkinter/tkinter-frames
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# Reference: https://stackoverflow.com/questions/34276663/tkinter-gui-layout-using-frames-and-grid
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# grid reference: https://stackoverflow.com/questions/34276663/tkinter-gui-layout-using-frames-and-grid
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import os
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from tkinter import *
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from tkinter import ttk
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from tkinter.ttk import *
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import _thread
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import pandas as pd
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import time
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class TableViewer():
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def __init__(self, master, newTitle):
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self.newWindow = Toplevel(master)
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self.newWindow.title(newTitle)
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# declare frames
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self.leftframe = ttk.Frame(self.newWindow, width=100, height=300, pad=10)
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self.rightframe = ttk.Frame(self.newWindow, width=200, height=300, pad=10)
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self.bottomframe = ttk.Frame(self.newWindow, width=300, height=50, pad=5)
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# arrange frames
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self.arrangeBottomFrame()
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self.arrangeLeftFrameUI()
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self.arrangeRightFrameUI()
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# place your widgets(2 frames) into windows
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self.leftframe.grid(row=1, column=1)
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self.rightframe.grid(row=1, column=2, sticky=W+E+N+S) # sticky="WE" means the inside-objects can extend to west and east
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self.rightframe.grid_rowconfigure(0, weight=1)
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self.bottomframe.grid(row=2, column=1, sticky="WE", columnspan=2)
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# set a variable of chosen condition
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self.currentCondition = "ALL"
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def arrangeBottomFrame(self):
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self.lbl_status = ttk.Label(self.bottomframe, text="Count = ")
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self.lbl_status.pack(side=LEFT)
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def arrangeRightFrameUI(self):
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# configure grid 7*3
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self.rightframe.grid_rowconfigure(0, weight=1)
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self.rightframe.grid_rowconfigure(6, weight=1)
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self.rightframe.grid_columnconfigure(0, weight=1)
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self.rightframe.grid_columnconfigure(2, weight=1)
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L1 = Label(self.rightframe, text="Display greater than ")
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self.ety_Greater = Entry(self.rightframe, width=5)
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btn_filter_Greater = ttk.Button(self.rightframe, text="Filter Greater", command=self.filter_greater, width=10)
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L2 = Label(self.rightframe, text="Display less than ")
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self.ety_Less = Entry(self.rightframe, width=5)
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btn_filter_Less = ttk.Button(self.rightframe, text="Filter Less", command=self.filter_less, width=10)
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btn_showAll = ttk.Button(self.rightframe, text="Show All Data", command=self.showAllData, width=20)
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# arrange each objects, and put objects on 3rd, 4th, 5th row-grid
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L1.grid(row=3, column=0)
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self.ety_Greater.grid(row=3, column=1)
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btn_filter_Greater.grid(row=3, column=2)
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L2.grid(row=4, column=0, sticky=W)
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self.ety_Less.grid(row=4, column=1)
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btn_filter_Less.grid(row=4, column=2)
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btn_showAll.grid(row=5, columnspan=3)
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def arrangeLeftFrameUI(self):
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# create a TreeView
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self.tree = ttk.Treeview(self.leftframe)
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self.tree["columns"] = ("Index", "Value")
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self.tree.column("Index", stretch=True, width=150)
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self.tree.column("Value", stretch=True, width=100)
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self.tree.heading("Index", text="Index")
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self.tree.heading("Value", text="Value")
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# attach a scrollbar to the frame
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treeScroll = ttk.Scrollbar(self.leftframe)
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treeScroll.configure(command=self.tree.yview)
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self.tree.configure(yscrollcommand=treeScroll.set)
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# read data from file
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dataFileDir = "/Users/alumi/PycharmProjects/StocksInfoRetrieval/Data/data_mm.pkl"
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if os.path.exists(dataFileDir):
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self.tableData = pd.read_pickle(dataFileDir)
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self.showAllData()
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# put tree and scroll beside each other in the left frame
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self.tree.pack(side=LEFT)
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treeScroll.pack(side=LEFT, fill=Y)
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def insertItem2TreeView(self, itemText, values):
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### insert format -> insert(parent, index, iid=None, **kw)
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### reference: https://docs.python.org/3/library/tkinter.ttk.html#tkinter.ttk.Treeview
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myItemID = self.tree.insert("", "end", text=itemText, values=(values[0], values[1]))
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if myItemID == None:
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return False
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else:
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return True
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def showAllData(self):
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# first clear all
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self.tree.delete(*self.tree.get_children())
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for i in range(0, self.tableData['HIGH'].size):
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self.insertItem2TreeView("HIGH", [self.tableData['HIGH'].index[i], self.tableData['HIGH'].values[i]])
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self.updateStatusBar()
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# print("Tree View Count = " + str(len(self.tree.get_children())))
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def filter_greater(self):
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self.currentCondition = "GREATER"
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self.tree.delete(*self.tree.get_children())
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comparedValue = float(self.ety_Greater.get())
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for i in range(0, self.tableData['HIGH'].size):
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if (self.tableData['HIGH'].values[i] > comparedValue):
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self.insertItem2TreeView("HIGH", [self.tableData['HIGH'].index[i], self.tableData['HIGH'].values[i]])
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self.updateStatusBar()
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# print("Tree View Count = " + str(len(self.tree.get_children())))
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def filter_less(self):
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self.currentCondition = "LESS"
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self.tree.delete(*self.tree.get_children())
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comparedValue = float(self.ety_Less.get())
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for i in range(0, self.tableData['HIGH'].size):
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if (self.tableData['HIGH'].values[i] < comparedValue):
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self.insertItem2TreeView("HIGH", [self.tableData['HIGH'].index[i], self.tableData['HIGH'].values[i]])
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self.updateStatusBar()
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# print("Tree View Count = " + str(len(self.tree.get_children())))
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def updateTable(self):
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print("Current Condition is " + self.currentCondition)
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if self.currentCondition == "ALL":
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self.showAllData()
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elif self.currentCondition == "GREATER":
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self.filter_greater()
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elif self.currentCondition == "LESS":
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self.filter_less()
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else:
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print("Current Condition has wrong value!!")
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def updateStatusBar(self):
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self.lbl_status.config(text="Tree View Count = " + str(len(self.tree.get_children())))
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# print("Tree View Count = " + str(len(self.tree.get_children())))
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# test for dynamic update
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def addNewData2TableData(self, timestamp):
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# print(self.tableData)
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newitem = self.tableData.loc["2330 TT Equity"]
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newitem.loc["HIGH"] = 10.123 + timestamp
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self.tableData.loc["AlumiInsert"+str(timestamp)] = newitem
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self.updateTable()
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# print(newitem)
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######### The following is for testing!!!
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def insert_loop(myGUI):
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i=0
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while(1):
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# myGUI.insertItem2TreeView("Alumi", ["Test", 10])
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myGUI.addNewData2TableData(i)
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# myGUI.showAllData()
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i += 1
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time.sleep(10)
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if __name__ == '__main__':
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_rootWindow = Tk()
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myTableViewer = TableViewer(_rootWindow, "Table View")
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try:
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_thread.start_new_thread(insert_loop, (myTableViewer, ))
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except:
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print("Loop of insert is wrong!!\n")
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_rootWindow.mainloop()
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