class MDIWindow(QMainWindow):
AutoOriginal = AutoOriginal("white")
caretaker = Caretaker(AutoOriginal)
cc = 0
ci = 0
cn = 0
pos = 0
root = Tk()
root.title('canvas')
count = 0
countProxy = 0
countState = 0
countBuilder = 0
canvas = Canvas(width=220, height=110, bg='white')
canvas.pack(side=TOP, expand=True, fill=BOTH)
def __init__(self):
super().__init__()
self.mdi = QMdiArea()
self.setCentralWidget(self.mdi)
bar = self.menuBar()
file = bar.addMenu("Patrones")
file.addAction("Patron Memento")
bel = QLabel(self)
imagen = QPixmap('./imagenes/logoUniversidad.png')
bel.setPixmap(imagen)
bel.setGeometry(400, 20, 400, 400)
self.mdi.setStyleSheet("background-color: rgb(240, 240, 240);")
file.triggered[QAction].connect(self.WindowTrig)
self.setWindowTitle("Pantalla Principal")
def WindowTrig(self, p):
#=====================================================================================================================================================================
if p.text() == "Patron Memento":
subState = QMdiSubWindow()
subState.resize(400, 400)
widgetState = QWidget()
self.layoutState = QGridLayout(widgetState)
self.layoutState.setContentsMargins(0, 0, 0, 0)
self.layoutState.setObjectName("gridState")
labelEstado = QLabel()
labelEstado.setText("Memento")
self.layoutState.addWidget(labelEstado, 0, 1, 1, 1)
self.comboEstado = QComboBox()
self.comboEstado.addItem("blue")
self.comboEstado.addItem("yellow")
self.comboEstado.addItem("red")
self.comboEstado.addItem("green")
self.layoutState.addWidget(self.comboEstado, 0, 2, 1, 1)
btnanterior = QPushButton('Color Anterior')
self.layoutState.addWidget(btnanterior, 1, 2, 1, 1)
btnanterior.clicked.connect(self.button_anterior)
btnnext = QPushButton('Color Siguiente')
self.layoutState.addWidget(btnnext, 1, 4, 1, 1)
btnnext.clicked.connect(self.button_next)
btnver = QPushButton('Ver')
self.layoutState.addWidget(btnver, 1, 6, 1, 1)
btnver.clicked.connect(self.button_ver)
subState.setWidget(widgetState)
subState.setWindowTitle("Patrón Memento")
self.mdi.addSubWindow(subState)
subState.show()
################################
def button_anterior(self):
#self.ci = self.ci+1
#self.cn = 0
self.pos = self.pos - 1
print(self.ci)
if self.cc == 0:
print('No existe un anterior')
else:
if (self.pos) >= 0:
color = self.caretaker.undo(self.pos)
self.canvas.create_rectangle(10,
20,
130,
80,
width=1,
fill=color)
self.canvas.create_rectangle(40,
10,
100,
80,
width=1,
fill=color)
self.canvas.create_rectangle(90,
20,
70,
40,
width=1,
fill="white")
#self.canvas.create_oval(10, 10, 30, 30, width=5, fill='black')
#self.canvas.create_oval(10, 90, 30, 60, width=1, fill='black')
self.root.mainloop()
else:
print('No se puede retroceder más ')
################################
def button_next(self):
#self.cn += 1
#self.ci = 0
print(self.pos)
#if self.pos != self.cc:
if self.pos >= self.cc:
print('No existe uno siguiente')
else:
color = self.caretaker.siguiente(self.pos)
self.canvas.create_rectangle(10, 20, 130, 80, width=1, fill=color)
self.canvas.create_rectangle(40, 10, 100, 80, width=1, fill=color)
self.canvas.create_rectangle(90, 20, 70, 40, width=1, fill="white")
#self.canvas.create_oval(10, 10, 30, 30, width=5, fill='black')
#self.canvas.create_oval(10, 90, 30, 60, width=1, fill='black')
self.pos = self.pos + 1
self.root.mainloop()
#############################
def button_ver(self):
self.ci = 0
self.cn = 0
estado = self.comboEstado.currentText()
self.cc = self.cc + 1
self.pos = self.cc
if (estado == "blue"):
self.caretaker.backup()
self.AutoOriginal.cambiarColor("blue")
self.canvas.create_rectangle(10, 20, 130, 80, width=1, fill="blue")
self.canvas.create_rectangle(40, 10, 100, 80, width=1, fill="blue")
if (estado == "yellow"):
self.caretaker.backup()
self.AutoOriginal.cambiarColor("yellow")
self.canvas.create_rectangle(10,
20,
130,
80,
width=1,
fill="yellow")
self.canvas.create_rectangle(40,
10,
100,
80,
width=1,
fill="yellow")
if (estado == "red"):
self.caretaker.backup()
self.AutoOriginal.cambiarColor("red")
self.canvas.create_rectangle(10, 20, 130, 80, width=1, fill="red")
self.canvas.create_rectangle(40, 10, 100, 80, width=1, fill="red")
if (estado == "green"):
self.caretaker.backup()
self.AutoOriginal.cambiarColor("green")
self.canvas.create_rectangle(10,
20,
130,
80,
width=1,
fill="green")
self.canvas.create_rectangle(40,
10,
100,
80,
width=1,
fill="green")
self.canvas.create_rectangle(90, 20, 70, 40, width=1, fill="white")
self.canvas.create_oval(20, 80, 40, 100, width=5, fill="black")
self.canvas.create_oval(100, 80, 80, 100, width=1, fill="black")
self.root.mainloop()
