# ==============================================================================
# 通过 D:\文档\电子文档\个人\脚本库\PythonScript\第4章.py + 题号 运行
# 程序名：
#   第4章习题
# 目的:
# 
# 修订记录:
#         日期              编程者               改动描述
# ===================   =============   =====================================
# 2021-07-21 17:28:01       Sola        4-a 计算终值的例题
# 2021-07-21 17:28:24       Sola        4-b 通过获取三个点绘制三角形的例题
# 2021-07-21 21:53:31       Sola        4-c 击键输入
# 2021-07-21 21:53:54       Sola        4-d 点击移动圆形
# 2021-07-21 21:54:11       Sola        4-1 点击生成正方形
# 2021-07-21 21:54:27       Sola        4-2 生成靶标
# 2021-07-21 22:05:13       Sola        4-3 绘制某种面孔。。。
# 2021-07-21 22:08:23       Sola        4-4 ~ 4-5 略
# 2021-07-21 22:08:35       Sola        4-6 通过Entry输入求终值
# 2021-07-22 00:46:54       Sola        4-7 圆的交点
# 2021-07-22 01:16:26       Sola        4-8 绘制线段并显示相关信息
# 2021-07-22 01:29:07       Sola        4-9 绘制矩形并显示相关信息
# 2021-07-22 01:33:57       Sola        4-10 绘制三角形并显示相关信息
# 2021-07-22 01:59:03       Sola        4-11 绘制小房子
# 
# module start
from typing import Sequence
from graphics import *

def test4_a():
    # Introduction
    print("This program plots the growth of a 10-year investment.")
    # Get principal and interest rate
    principal = float(input("Enter the initial principal: "))
    apr = float(input("Enter the annualized interest rate: "))
    # Create a graphics window with labels on left edge
    win = GraphWin("Investment Growth Chart", 320, 240)
    win.setBackground("white")
    Text(Point(20, 230), ' 0.0K').draw(win)
    Text(Point(20, 180), ' 2.5K').draw(win)
    Text(Point(20, 130), ' 5.0K').draw(win)
    Text(Point(20, 80), ' 7.5K').draw(win)
    Text(Point(20, 30), '10.0K').draw(win)
    # Draw bar for initial principal
    height = principal * 0.02
    bar = Rectangle(Point(40, 230), Point(65, 230-height))
    bar.setFill("green")
    bar.setWidth(2)
    bar.draw(win)
    # Draw bars for successive years
    for year in range(1,11):
        # calculate value for the next year
        principal = principal * (1 + apr)
        # draw bar for this value
        xll = year * 25 + 40
        height = principal * 0.02
        bar = Rectangle(Point(xll, 230), Point(xll+25, 230-height))     # 创建柱体
        bar.setFill("green")                                            # 设置填充色
        bar.setWidth(2)                                                 # 设置轮廓宽度
        bar.draw(win)                                                   # 绘制
    input("Press <Enter> to quit")
    win.close()

def test4_b():
    win = GraphWin("Draw a Triangle")
    win.setCoords(0.0, 0.0, 10.0, 10.0)
    message = Text(Point(5, 0.5), "Click on three points")
    message.draw(win)
    # Get and draw three vertices of triangle
    p1 = win.getMouse()
    p1.draw(win)
    p2 = win.getMouse()
    p2.draw(win)
    p3 = win.getMouse()
    p3.draw(win)
    # Use Polygon object to draw the triangle
    triangle = Polygon(p1,p2,p3)
    triangle.setFill("peachpuff")
    triangle.setOutline("cyan")
    triangle.draw(win)
    # Wait for another click to exit
    message.setText("Click anywhere to quit.")
    win.getMouse()

def test4_c():
    win = GraphWin("Click and Type", 400, 400)
    for i in range(10):
        pt = win.getMouse()
        key = win.getKey()
        label = Text(pt, key)
        label.draw(win)

def test4_d():
    win = GraphWin()
    shape = Circle(Point(50, 50), 20)
    shape.setOutline("red")
    shape.setFill("red")
    shape.draw(win)
    for i in range(10):
        p = win.getMouse()
        c = shape.getCenter()
        dx = p.getX() - c.getX()
        dy = p.getY() - c.getY()
        shape.move(dx,dy)
    win.close()

def test4_1():
    win = GraphWin()
    shape = Rectangle(Point(50, 50), Point(70, 70))
    shape.setOutline("red")
    shape.setFill("red")
    shape.draw(win)
    for i in range(10):
        p = win.getMouse()
        c = shape.getCenter()
        dx = p.getX() - c.getX()
        dy = p.getY() - c.getY()
        shape.clone().draw(win)
        shape.move(dx,dy)
    Text(Point(100, 180), "Click again to quit").draw(win)
    win.getMouse()
    win.close()

def test4_2():
    win = GraphWin()
    def draw_circle(r, s_fill):
        shape = Circle(Point(100, 90), r)
        shape.setFill(s_fill)
        shape.setOutline("black")
        shape.clone().draw(win)
    draw_circle(75, "white")
    draw_circle(60, "black")
    draw_circle(45, "blue")
    draw_circle(30, "red")
    draw_circle(15, "yellow")
    Text(Point(100, 180), "Click again to quit").draw(win)
    win.getMouse()
    win.close()

def test4_3():
    win = GraphWin()
    Text(Point(100, 90), "某种面孔").draw(win)
    Text(Point(100, 180), "Click again to quit").draw(win)
    win.getMouse()
    win.close()

def test4_6():
    win = GraphWin("Input menu", 400, 130)
    Text(Point(200, 10), "This program plots the growth of a 10-year investment.").draw(win)
    Text(Point(200, 30), "Enter the initial principal:").draw(win)
    Text(Point(200, 70), "Enter the annualized interest rate:").draw(win)
    apr_entry = Entry(Point(200, 90), 10)
    apr_entry.draw(win)
    principal_entry = Entry(Point(200, 50), 10)
    principal_entry.draw(win)
    Text(Point(200, 115), "Click again to continue").draw(win)
    win.getMouse()
    principal = float(principal_entry.getText())
    apr = float(apr_entry.getText())
    win = GraphWin("Investment Growth Chart", 320, 240)
    win.setBackground("white")
    Text(Point(20, 230), ' 0.0K').draw(win)
    Text(Point(20, 180), ' 2.5K').draw(win)
    Text(Point(20, 130), ' 5.0K').draw(win)
    Text(Point(20, 80), ' 7.5K').draw(win)
    Text(Point(20, 30), '10.0K').draw(win)
    # Draw bar for initial principal
    height = principal * 0.02
    bar = Rectangle(Point(40, 230), Point(65, 230-height))
    bar.setFill("green")
    bar.setWidth(2)
    bar.draw(win)
    # Draw bars for successive years
    for year in range(1,11):
        # calculate value for the next year
        principal = principal * (1 + apr)
        # draw bar for this value
        xll = year * 25 + 40
        height = principal * 0.02
        bar = Rectangle(Point(xll, 230), Point(xll+25, 230-height))     # 创建柱体
        bar.setFill("green")                                            # 设置填充色
        bar.setWidth(2)                                                 # 设置轮廓宽度
        bar.draw(win)                                                   # 绘制
    win.getMouse()

def test4_7():
    r = float(input("请输入圆的半径："))
    b = float(input("请属于水平线在y轴方向截距："))
    win = GraphWin()
    win.setCoords(-10, -10, 10, 10)
    Circle(Point(0, 0), r).draw(win)
    Line(Point(-10, b), Point(10, b)).draw(win)
    if abs(b) > r:
        print("没有交点！")
    else:
        x = round((r ** 2 - b ** 2) ** 0.5, 1)
        b = round(b, 1)
        def printPoint(x, b):
            p = Point(x, b)
            p.setFill("red")
            p.clone().draw(win)
            Text(Point(x, b + 1), "(" + str(x) + ", " + str(b) + ")").draw(win)
        printPoint(x, b)
        printPoint(-x, b)
    Text(Point(0, -9), "Click again to quit").draw(win)
    win.getMouse()

def test4_8():
    win = GraphWin()
    text = Text(Point(100, 190), "请点击两个位置！")
    text.draw(win)
    p1 = win.getMouse()
    p2 = win.getMouse()
    l1 = Line(p1, p2)
    l1.draw(win)
    p3 = l1.getCenter()
    p3.setFill("blue")
    p3.draw
    if (p2.getX() - p1.getX()) == 0:
        slope = "inf"
    else:
        slope = round((p2.getY() - p1.getY()) / (p2.getX() - p1.getX()), 4)
    length = round(((p2.getY() - p1.getY()) ** 2 + (p2.getX() - p1.getX()) ** 2) ** 0.5, 4)
    print("线段的斜率为：", slope)
    print("线段的长度为：", length)
    text.setText("Click again to quit")
    win.getMouse()

def test4_9():
    win = GraphWin()
    text = Text(Point(100, 190), "请点击两个位置！")
    text.draw(win)
    p1 = win.getMouse()
    p2 = win.getMouse()
    l1 = Rectangle(p1, p2)
    l1.draw(win)
    cRectangle = round((abs(p2.getY() - p1.getY()) + abs(p2.getX() - p1.getX())) * 2, 4)
    sRectangle = round(abs(p2.getY() - p1.getY()) * abs(p2.getX() - p1.getX()), 4)
    print("矩形的周长为：", cRectangle)
    print("矩形的面积为：", sRectangle)
    text.setText("Click again to quit")
    win.getMouse()

def test4_10():
    win = GraphWin()
    text = Text(Point(100, 190), "请点击三个位置！")
    text.draw(win)
    p1 = win.getMouse()
    p2 = win.getMouse()
    p3 = win.getMouse()
    Polygon(p1, p2, p3).draw(win)
    a = ((p2.getY() - p1.getY()) ** 2 + (p2.getX() - p1.getX()) ** 2) ** 0.5
    b = ((p3.getY() - p2.getY()) ** 2 + (p3.getX() - p2.getX()) ** 2) ** 0.5
    c = ((p3.getY() - p1.getY()) ** 2 + (p3.getX() - p1.getX()) ** 2) ** 0.5
    cPolygon = round(a + b + c, 4)
    sPolygon = round((cPolygon / 2 * (cPolygon / 2 - a) * (cPolygon / 2 - b) * (cPolygon / 2 - c)) ** 0.5, 4)
    print("三角形的周长为：", cPolygon)
    print("三角形的面积为：", sPolygon)
    text.setText("Click again to quit")
    win.getMouse()

def test4_11():
    win = GraphWin()
    text = Text(Point(100, 190), "请点击五个位置！")
    text.draw(win)
    p1 = win.getMouse()
    p2 = win.getMouse()
    p3 = win.getMouse()
    p4 = win.getMouse()
    p5 = win.getMouse()
    d = p2.getX() - p1.getX()
    Rectangle(p1, p2).draw(win)
    Polygon(p2, Point(p1.getX(), p2.getY()), p5).draw(win)
    Rectangle(Point(p3.getX() + d * 0.1, p3.getY()), Point(p3.getX() - d * 0.1, p1.getY())).draw(win)
    Rectangle(Point(p4.getX() + d * 0.05, p4.getY() + d * 0.05), Point(p4.getX() - d * 0.05, p4.getY() - d * 0.05)).draw(win)
    text.setText("Click again to quit")
    win.getMouse()

import sys
def run(num):
    eval("test4_" + num + "()")
run(sys.argv[1])