import pygame
from pygame.locals import *
from CGB.TK import CC
import time
import os

#定义一些变量
pen_C = [0, 0, 0]  # 画笔颜色
Z_C = [0,0,255]
J_C = [255,0,0]
d = 2  # 圆形的粗细（线条*2）=中笔
m_x = None
m_y = None  # 为画图所准备的
Done = False  # 设置免按
XY = 0
axy = [0, 0, 0]  # 坐标系
XY_x = 0
XY_y = 0  # 原点坐标
X_P = []  # X点
Y_C = []  # Y点
X_L = []  # X个数
Y_L = []  # Y个数
X_M = []
Y_M = []
_KD = 60  # 坐标系跨度调节

ZJ = 0  # 中键模式
Line = []  # 画线列表
Rect = []  # 画矩阵和圆列表
Poly = []  # 画多边形列表

Talk = ''#设置备注

BC_Dic = ''#保存路径
Tip = [0,0,0,0,0]#底部显示信息[x,y,左键，中间，右键]

Done_Name = {1:'绘制坐标系',2:'绘制直线(g)',3:'填充矩形(f)',4:'线条矩形(s)',
             5:'绘制横线(k)',6:'绘制竖线(l)',7:'绘制多段线(j)',
             8:'绘制横打点多段线(i)',9:'绘制竖打点多段线(u)',10:'坐标测绘(h)',
             11:'绘制虚线(q)',12:'填充圆形(c)',13:'线条圆形(v)',14:'多边形(n-填充,m-线条)',
             15:'填充椭圆形(e)',16:'线条椭圆形(r)',0:'None'}#快捷键名字

#绘制函数
def HS(HS_list,JD = 1000):
    global X_P,X_L,Y_C,Y_L,Y_M,X_M,pen_C,Z_C,J_C
    c = [0,0,0]#增函数颜色
    X_Done = lambda x: (x - X_L[0]) / (X_L[1] - X_L[0]) * (X_P[1] - X_P[0]) + X_P[0]#x是数值,换算为像素
    Y_Done = lambda y: (y - Y_L[0]) / (Y_L[1] - Y_L[0]) * (Y_C[1] - Y_C[0]) + Y_C[0]  # x是数值,换算为像素
    for i in HS_list:
        x1 = None  # 上一组X和Y
        y1 = None
        if HS_list == None:continue
        D = HS_list[i]
        try:
            for x in range((X_L[0]-1)*JD,(X_L[1]+1)*JD,1):
                x /= JD
                try:
                    y = D(x)
                except:
                    x1 = None
                    y1 = None
                    continue
                try:
                    x2 = X_Done(x)
                    y2 = Y_Done(y)
                    if y2>Y_M[0] or y2<Y_M[1] or x2<X_M[0] or x2>X_M[1]:
                        x1 = None
                        y1 = None
                        continue
                except TypeError:#预防复数
                    continue
                if x1 != None:
                    if y1>y2:c=Z_C#增函数
                    elif y1<y2:c=J_C#减函数#改为检查Y数值而不是坐标
                    pygame.draw.line(root, c, (int(x1),int(y1)), (int(x2),int(y2)), d)
                x1 = x2
                y1 = y2
        except IndexError:
            break

#画曲线系统
def draw_Line(xy,c=False):#c-是否带点
    global m_x,m_y
    if c:pygame.draw.circle(root, pen_C, xy, d, 0)
    if m_x != None:
        pygame.draw.line(root,pen_C,(m_x,m_y), xy, d)
    m_x = xy[0]
    m_y = xy[1]

#绘制XY坐标系
def XYZ_ZBX(s_x,s_y,p = (-100, 100),c = (-200, 100),kd = 10,b = 3,jt = 3,r = 3):
    kd = abs(kd)#kd大于0
    global d,XY_x,XY_y,X_L,X_P,Y_L,Y_C,X_M,Y_M
    XY_x = s_x
    XY_y = s_y#存储原点坐标
    X_M = [s_x + p[0],s_x + p[1]]
    Y_M = [s_y + c[1],s_y + c[0]]
    pygame.draw.circle(root, pen_C, (s_x, s_y), r, 0)#绘制原点
    pygame.draw.line(root, pen_C, (s_x + p[0], s_y), (s_x + p[1], s_y), d)  # X轴，Y定
    pygame.draw.line(root, pen_C, (s_x, s_y + c[0]), (s_x, s_y + c[1]), d)  # y轴，x定
    _a = 0#刻度统计
    _c = 0
    for i in range(s_x ,s_x + p[0], -kd):#右
        _a -= 1
        pygame.draw.line(root, pen_C, (i, s_y + b), (i, s_y), d)
        _c = i
    _b = 0
    _d = 0
    for i in range(s_x, s_x + p[1], kd):#刻度#左
        _b += 1
        pygame.draw.line(root, pen_C, (i, s_y + b), (i, s_y), d)
        _d = i
    X_L = [_a+1,_b-1]
    X_P = [_c,_d]
    _a = 0
    _c = 0
    for i in range(s_y, s_y + c[0], -kd):#上
        _a += 1
        pygame.draw.line(root, pen_C, (s_x + b, i), (s_x, i), d)
        _c = i
    _b = 0
    _d = 0
    for i in range(s_y, s_y + c[1], kd):#下
        _b -= 1
        pygame.draw.line(root, pen_C, (s_x + b, i), (s_x, i), d)
        _d = i
    Y_L = [_b+1,_a-1]
    Y_C = [_d,_c]

    #箭头
    pygame.draw.line(root, pen_C, (s_x + p[1], s_y), (s_x + p[1] - jt, s_y + jt), d)  # X上
    pygame.draw.line(root, pen_C, (s_x + p[1], s_y), (s_x + p[1] - jt, s_y - jt), d)  # X下

    pygame.draw.line(root, pen_C, (s_x, s_y + c[0]), (s_x - jt, s_y + c[0] + jt), d)  # y左
    pygame.draw.line(root, pen_C, (s_x, s_y + c[0]), (s_x + jt, s_y + c[0] + jt), d)  # X下

def New_Tip():
    #绘制顶部
    global d,Font,Tip,Screen_x,Screen_y,ZJ,BC_Dic,Done_Name,Done,XY_x,XY_y,Talk,Line,Rect,Poly,pen_C,Z_C,J_C,axy,_KD
    if Done:mod_d = '启动无点击画线(点击d关闭)'
    else:mod_d = '关闭无点击画线'
    pygame.draw.rect(root,[255,255,255], [0,0,Screen_x,16], 0)
    pygame.draw.rect(root, [255, 255, 255], [0, Screen_y-16, Screen_x, Screen_y], 0)
    p = ''
    if ZJ == 0: Talk = ''
    if axy != [0,0,0]:
        a = []
        for i in axy:
            if i != 0:a.append(i)
        p += f'坐标端点:{str(a)}  '
    if Line:
        p += f'端点:{str(Line)}  '
    if Rect:
        p += f'顶点(圆心):{str(Rect)}  '
    if Poly:
        p += f'多顶点:{str(Poly)}  '
    if Done or ZJ != 0:
        TIP3 = Font.render(f'模式:{mod_d} , {Done_Name[ZJ]} {Talk}', True, (0, 0, 0))
    else:
        s = ''
        if BC_Dic:s = f'保存路径（w）:{BC_Dic}'
        TIP3 = Font.render(f'{time.strftime("%Y/%m/%d  %I:%M")}  {s}', True, (0, 0, 0))
        p = ''
    if p == '':
        p = f'主色调:{pen_C} 增函数颜色:{Z_C} 减函数颜色:{J_C}'
    TIP = Font.render(f'鼠标:{Tip[0]},{Tip[1]}',True, (0, 0, 0))
    TIP2 = Font.render(f'{Tip[2]},{Tip[3]},{Tip[4]} ; 大小:{d} ; 原点:{XY_x},{XY_y} ; 跨度:{_KD} ; {p}', True, (0, 0, 0))
    root.blit(TIP, (0, 0))
    root.blit(TIP2, (100, 0))
    root.blit(TIP3, (0, Screen_y - 16))

#主程序
def Draw(dis_x=900,dis_y=700):
    global m_x, m_y,pen_C,d,BG,XY,axy,XY_x,XY_y,_KD,Line,Done,ZJ,Rect,Poly,root,root_caption,done,m_x, m_y,BC_Dic#定义全局变量
    global Z_C,J_C,Tip,Font,Screen_x,Screen_y,Talk,Font
    Screen_x = dis_x
    Screen_y = dis_y
    done = pygame.init()  # 初始化所有模块
    if done[1] != 0: print('Init!')  # 检查是否错误
    Font = pygame.font.Font('Font\ZKST.ttf', 16)  # 设置字体(Linux下应该用\而不是/)
    root = pygame.display.set_mode((dis_x, dis_y),0)  # 创建屏幕
    root_caption = pygame.display.set_caption('CoTan画图板')#定义标题（后期加上定义Logo）
    root.fill([255, 255, 255])  # 默认用白色填充窗口
    flat = True#循环条件（不是全局）
    while flat:
        New_Tip()
        pygame.display.update()#屏幕刷新
        for event in pygame.event.get():#事件检查
            if event.type == QUIT:#退出事件
                pygame.quit()
                flat = False
                break
            elif event.type == MOUSEMOTION:#鼠标移动事件
                Tip[0],Tip[1] = event.pos
                Tip[2],Tip[3],Tip[4] = event.buttons
                if event.buttons == (1, 0, 0):#左键点击
                    draw_Line(event.pos)
                elif event.buttons == (0, 0, 0):#无点击绘图（启动快捷键d）
                    if Done:
                        draw_Line(event.pos)
                    else:#m_x和m_y是指上一点的xy，用于画线系统
                        m_x = None
                        m_y = None
            elif event.type == MOUSEBUTTONDOWN:#鼠标按下
                event.pos = list(event.pos)
                if event.button == 3:#右键点击
                    Tip[4] = 1
                    pygame.image.save(root,'$CoTanCC.png')#保存当前环境
                    root = pygame.display.set_mode((dis_x, dis_y), pygame.NOFRAME)#隐藏关闭按钮
                    bg = pygame.image.load('$CoTanCC.png').convert()#加载位图
                    root.blit(bg, (0, 0))#绘制位图
                    pygame.display.update()#更新屏幕
                    g = CC()#启动工具箱
                    root = pygame.display.set_mode((dis_x, dis_y), 0)#显示关闭按钮
                    bg = pygame.image.load('$CoTanCC.png').convert()#加载位图
                    root.blit(bg, (0, 0))#绘制位图
                    pygame.display.update()#更新屏幕
                    os.remove('$CoTanCC.png')
                    if g[0] != None:pen_C = g[0]#设置颜色
                    if g[1] != None:d = g[1]#设置笔的粗细
                    if g[2] != None: root.fill(g[2])#设置背景填充
                    if g[3] == 1:#绘制坐标系
                        Talk = '选择坐标三个端点'
                        ZJ = 1
                        XY = 3
                        _KD = 60
                    elif g[3] == 2:#绘制坐标系2（小跨度）
                        Talk = '选择坐标三个端点'
                        ZJ = 1
                        XY = 3
                        _KD = 20
                    elif g[3] == 3:#绘制坐标系3（大跨度）
                        Talk = '选择坐标三个端点'
                        ZJ = 1
                        XY = 3
                        _KD = 120#坐标系跨度（字定义跨度再下面）
                    else:
                        ZJ = 0
                        XY = 0#恢复选项
                    if g[6] != None: Z_C = g[6]  # 增函数颜色（要在函数绘制之前设置好）
                    if g[7] != None: J_C = g[7]  # 减函数颜色
                    if g[4] != {}:HS(g[4])#函数绘制
                    if g[5] != None:
                        pygame.image.save(root, g[5])  # 保存当前环境
                        BC_Dic = g[5]
                    if g[8] != None: _KD = g[8]  # 自定义跨度
                    if g[9] != None:
                        try:
                            bg_im = pygame.image.load(g[9]).convert()  # 加载位图
                            root.blit(bg_im, (0, 0))  # 绘制位图
                        except:pass
                    #恢复参数
                    m_x = None
                    m_y = None
                    Done = False
                    pygame.event.clear()
                elif event.button == 2:#中键点击，ZJ是指中键的模式，来自快捷键和工具箱
                    Tip[3] = 1
                    if ZJ == 1:#坐标系模式
                        Talk = '选择下一个端点（共3个）'
                        axy[XY-1] = event.pos#存储
                        XY -= 1
                        if XY == 0:
                            x = []
                            y = []
                            for i in axy:
                                x.append(i[0])
                                y.append(i[1])
                            x.sort()
                            y.sort()#排序
                            s_x = x[1]
                            s_y = y[1]
                            p = (-abs(x[0] - x[1]), abs(x[1] - x[2]))
                            c = (-abs(y[0] - y[1]), abs(y[1] - y[2]))
                            b = 2 * d
                            r = 2 * d
                            jt = 3 * d
                            XYZ_ZBX(s_x,s_y,p,c,_KD,b,jt,r)
                            axy = [0,0,0]
                            ZJ = 0
                    elif ZJ == 2:#画线模式
                        Line.append(event.pos)
                        # pygame.draw.circle(root, pen_C, event.pos, d, 0)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0],Line[1], d)
                            ZJ = 0
                    elif ZJ == 3 or ZJ == 4:#画矩形模式
                        Rect.append(event.pos)
                        if len(Rect) == 2:
                            x = [Rect[0][0],Rect[1][0]]
                            y = [Rect[0][1],Rect[1][1]]
                            x.sort();y.sort()
                            if ZJ == 3:dx = 0
                            else:dx = d
                            pygame.draw.rect(root, pen_C, [x[0], y[0], x[1]-x[0], y[1]-y[0]], dx)
                            ZJ = 0
                    elif ZJ == 5:#画横线模式
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0],(Line[1][0],Line[0][1]), d)
                            ZJ = 0
                    elif ZJ == 6:#画竖线模式
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0],(Line[0][0],Line[1][1]), d)
                            ZJ = 0
                    elif ZJ == 7:#画线多段线
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0],Line[1], d)
                            del Line[0]
                    elif ZJ == 8:#画横线多段线
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0],(Line[1][0],Line[0][1]), d)
                            pygame.draw.circle(root, pen_C, (Line[1][0],Line[0][1]), d*2, 0)
                            del Line[1]
                        else:
                            pygame.draw.circle(root, pen_C, event.pos, d, 0)
                    elif ZJ == 9:#画竖线多段线
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0],(Line[0][0],Line[1][1]), d)
                            pygame.draw.circle(root, pen_C, (Line[0][0],Line[1][1]), d*2, 0)
                            del Line[1]
                        else:
                            pygame.draw.circle(root, pen_C, event.pos, d, 0)
                    elif ZJ == 10:#画竖线和横线多段线
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0], (Line[1][0], Line[0][1]), d)#横线
                            pygame.draw.circle(root, pen_C, (Line[1][0], Line[0][1]), d*2, 0)
                            pygame.draw.circle(root, pen_C, (Line[1][0], Line[1][1]), d * 2, 0)
                            pygame.draw.line(root, pen_C, Line[0],(Line[0][0],Line[1][1]), d)#竖线
                            pygame.draw.circle(root, pen_C, (Line[0][0],Line[1][1]), d*2, 0)
                            #垂直于横线的虚线
                            p = [Line[1][1],Line[0][1]]
                            p.sort()
                            Y1 = p[0]
                            Y2 = p[1]
                            a = list(range(Y1, Y2, 10))
                            for i in range(int(len(a) / 2)):  # 向下取整，可用math.ceil代替
                                i += 1
                                i = 2 * i - 1
                                y1 = a[i - 1]  # 计算两点的y坐标
                                y2 = a[i]
                                pygame.draw.line(root, pen_C, (Line[1][0], y1), (Line[1][0], y2), d)  # 横线
                            # 垂直于竖线的虚线
                            p = [Line[1][0],Line[0][0]]
                            p.sort()
                            X1 = p[0]
                            X2 = p[1]
                            a = list(range(X1, X2, 10))
                            for i in range(int(len(a) / 2)):  # 向下取整，可用math.ceil代替
                                i += 1
                                i = 2 * i - 1
                                x1 = a[i - 1]  # 计算两点的x坐标
                                x2 = a[i]
                                pygame.draw.line(root, pen_C, (x1, Line[1][1]), (x2, Line[1][1]), d)  # 横线
                            del Line[1]
                        else:
                            pygame.draw.circle(root, pen_C, event.pos, d, 0)
                    elif ZJ == 11:#画虚线线模式
                        Line.append(event.pos)
                        pygame.draw.circle(root, pen_C, event.pos, d, 0)
                        if len(Line) == 2:
                            if abs(Line[0][0]- Line[1][0]) >= 100:
                                p1 = [Line[0][0],Line[1][0]]
                                p2 = {Line[0][0]:Line[0][1],Line[1][0]:Line[1][1]}
                                p1.sort()
                                X1 = p1[0]
                                Y1 = p2[X1]
                                X2 = p1[1]
                                Y2 = p2[X2]
                                a = list(range(X1, X2, 10))
                                for i in range(int(len(a) / 2)):  # 向下取整，可用math.ceil代替
                                    i += 1
                                    i = 2 * i - 1
                                    x1 = a[i - 1]  # 计算两点的x坐标
                                    x2 = a[i]
                                    y1 = (x1 - X1) / (X2 - X1) * (Y2 - Y1) + Y1
                                    y2 = (x2 - X1) / (X2 - X1) * (Y2 - Y1) + Y1
                                    pygame.draw.line(root, pen_C, (x1, y1), (x2, y2), d)  # 横线
                            elif abs(Line[0][1]- Line[1][1]) >= 100:
                                p1 = [Line[0][1], Line[1][1]]
                                p2 = {Line[0][1]: Line[0][0], Line[1][1]: Line[1][0]}
                                p1.sort()
                                Y1 = p1[0]
                                X1 = p2[Y1]
                                Y2 = p1[1]
                                X2 = p2[Y2]
                                a = list(range(Y1, Y2, 10))
                                for i in range(int(len(a) / 2)):  # 向下取整，可用math.ceil代替
                                    i += 1
                                    i = 2 * i - 1
                                    y1 = a[i - 1]  # 计算两点的x坐标
                                    y2 = a[i]
                                    x1 = (y1 - Y1) / (Y2 - Y1) * (X2 - X1) + X1
                                    x2 = (y2 - Y1) / (Y2 - Y1) * (X2 - X1) + X1
                                    pygame.draw.line(root, pen_C, (x1, y1), (x2, y2), d)  # 横线
                            else:
                                pygame.draw.line(root, pen_C, Line[1], Line[0], d)
                            ZJ = 0
                    elif ZJ == 12:#画圆模式
                        Rect.append(event.pos)
                        if len(Rect) == 2:
                            r = int(((Rect[0][0]-Rect[1][0])**2 + (Rect[0][1]-Rect[1][1])**2)**(1/2))#两点间求距离
                            pygame.draw.circle(root, pen_C, Rect[0], r, 0)
                            ZJ = 0
                        else:
                            pygame.draw.circle(root, pen_C, Rect[0], d*2, 0)
                    elif ZJ == 13:#画圆线框模式
                        Rect.append(event.pos)
                        if len(Rect) == 2:
                            r = int(((Rect[0][0]-Rect[1][0])**2 + (Rect[0][1]-Rect[1][1])**2)**(1/2))#两点间求距离
                            pygame.draw.circle(root, pen_C, Rect[0], r, d)
                            ZJ = 0
                        else:
                            pygame.draw.circle(root, pen_C, Rect[0], d, 0)
                    elif ZJ == 14:  # 画多边形模式
                        Line.append(event.pos)
                        if len(Line) == 2:
                            pygame.draw.line(root, pen_C, Line[0], Line[1], d)
                            del Line[0]
                        Poly.append(event.pos)
                    elif ZJ == 15:#画椭圆模式
                        Rect.append(event.pos)
                        if len(Rect) == 2:
                            x = [Rect[0][0],Rect[1][0]]
                            y = [Rect[0][1],Rect[1][1]]
                            x.sort();y.sort()
                            pygame.draw.ellipse(root, pen_C,[x[0], y[0], x[1]-x[0], y[1]-y[0]], 0)
                            ZJ = 0
                    elif ZJ == 16:#画椭圆边框模式
                        Rect.append(event.pos)
                        if len(Rect) == 2:
                            x = [Rect[0][0],Rect[1][0]]
                            y = [Rect[0][1],Rect[1][1]]
                            x.sort();y.sort()
                            pygame.draw.ellipse(root, pen_C,[x[0], y[0], x[1]-x[0], y[1]-y[0]], d)
                            ZJ = 0
                elif event.button == 1:
                    Tip[2] = 1
                    pygame.draw.circle(root, pen_C, event.pos, d, 0)
                    m_x = event.pos[0]
                    m_y = event.pos[1]
            elif event.type == KEYDOWN:#键盘按下（长按不算）快捷键
                if event.key == K_d:#不用点击左键画线
                    if Done:
                        Done = False
                    else:
                        Done = True
                        m_x = None
                        m_y = None
                elif event.key == K_g:#画直线
                    Talk = '根据两个端点画直线'
                    ZJ = 2
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_f:#画矩阵
                    ZJ = 3
                    Talk = '根据两个相对的顶点绘制矩形'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_s:#画矩阵边框
                    ZJ = 4
                    Talk = '根据两个相对的顶点绘制矩形'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_k:#画横线
                    ZJ = 5
                    Talk = '选择起点和与终点y坐标相同的点'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_l:#画竖线
                    ZJ = 6
                    Talk = '选择起点和与终点x坐标相同的点'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_j:#多段线
                    if ZJ == 7:
                        ZJ = 0
                    else:
                        ZJ = 7
                        Talk = '依次选择多段线的顶点'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_i:#多段线横线打点
                    if ZJ == 8:
                        ZJ = 0
                    else:
                        ZJ = 8
                        Talk = '选择终点，依次选择与其他端点y坐标相同的点（点击i结束）'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_u:#多段线竖线打点
                    if ZJ == 9:
                        ZJ = 0
                    else:
                        ZJ = 9
                        Talk = '选择终点，依次选择与其他端点x坐标相同的点（点击u结束）'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_h:#多段横竖线打点
                    if ZJ == 10:
                        ZJ = 0
                    else:
                        ZJ = 10
                        Talk = '选择参考点，再选择研究对象（点击h结束）'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_q:#绘制虚线
                    ZJ = 11
                    Talk = '选择虚线的两个端点'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_c:#绘制圆形
                    ZJ = 12
                    Talk = '选择圆形和圆上任意一点（确定半径）'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_v:#绘制圆形线框
                    ZJ = 13
                    Talk = '选择圆形和圆上任意一点（确定半径）'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_o:#捕捉
                    Talk = '起点已经捕捉到坐标系原点了'
                    Line=[[XY_x,XY_y]]
                    Rect=[[XY_x,XY_y]]
                    Poly=[[XY_x,XY_y]]
                elif event.key == K_y:#捕捉上y轴
                    if len(Line) >= 1:
                        Talk = '起点已经移动到坐标系y轴上了'
                        Line[0][0] = XY_x
                    if len(Rect) >= 1:
                        Talk = '起点已经移动到坐标系y轴上了'
                        Rect[0][0] = XY_x
                    if len(Poly) >= 1:
                        Talk = '起点已经移动到坐标系y轴上了'
                        Rect[0][0] = XY_x
                elif event.key == K_x:#捕捉上x轴
                    if len(Line) >= 1:
                        Talk = '起点已经移动到坐标系x轴上了'
                        Line[0][1] = XY_y
                    if len(Rect) >= 1:
                        Talk = '起点已经移动到坐标系x轴上了'
                        Rect[0][1] = XY_y
                    if len(Poly) >= 1:
                        Talk = '起点已经移动到坐标系x轴上了'
                        Rect[0][1] = XY_y
                elif event.key == K_n: # 画多边形
                    if ZJ == 14:
                        ZJ = 0
                        pygame.draw.polygon(root,pen_C,Poly,0)
                    else:
                        Talk = '依次选择多边形的各个端点(点击n闭合并填充)'
                        ZJ = 14
                elif event.key == K_m: # 画多边形边框
                    if ZJ == 14:
                        ZJ = 0
                        pygame.draw.polygon(root, pen_C, Poly, d)
                    else:
                        Talk = '依次选择多边形的各个端点(点击m闭合)'
                        ZJ = 14
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_e:#绘制填充椭圆
                    ZJ = 15
                    Talk = '选择椭圆外界矩形的两个相对的顶点'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_r:#绘制椭圆边框
                    ZJ = 16
                    Talk = '选择椭圆外界矩形的两个相对的顶点'
                    Line = []
                    Rect = []
                    Poly = []
                elif event.key == K_w:#保存
                    if BC_Dic != '':
                        pygame.image.save(root, BC_Dic)  # 保存当前环境
                elif event.key == K_b:#清空当前操作
                    ZJ = 0
                    Line = []
                    Rect = []
                    Poly = []

# 快捷键操作指南
# d-不用点击左键画线（再次点击关闭）
# g-画直线
# f-画填充矩阵
# s-画矩阵边框
# k-画横线
# l-画竖线
# j-画多段线
# i-横线多段线打点（再次点击结束绘制）
# u-竖线多段线打点（再次点击结束绘制）
# h-横线和竖线多段线打点并由虚线标注（再次点击结束绘制）
# q-绘制虚线
# c-绘制填充圆形
# v-绘制圆形边框
# n和m-绘制多边形
# n-再次点击完成填充多边形绘制
# m-再次点击完成多边形边框绘制
# o-捕捉坐标原点（请先点击功能快捷键）
# x-捕捉坐标x轴（请先点击功能快捷键并选择起点）
# y-捕捉坐标y轴（同上）
# b-关闭当前所有快捷键操作
# e-绘制填充椭圆
# r-绘制椭圆边框