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| Deleções são marcadas assim. | Adições são marcadas assim. |
| Linha 2: | Linha 2: |
| #!python |
|
| Linha 10: | Linha 12: |
| impressão | Finalidade: Calculadora que opera semelhante a calculadora do windows, alem de conter uma caixa de texto que imita uma fita de impressão |
| Linha 12: | Linha 17: |
| Sistema Operacional: Linux | Sistema Operacional: Linux, Windows Email:perallis@rc.unesp.br |
| Linha 30: | Linha 37: |
| #Cria os frames nescessarios para a disposição dos widgets no programa |
#Cria os frames nescessarios para a disposição dos widgets no programa |
1 #!/usr/bin/python
2 # -*- coding: cp1252 -*-
3
4 """
5 Autor: Vinicius Rodrigues da Cunha Perallis
6 Data: 19/04/2006
7 20/04/2006
8 Projeto: Calculadora Comercial
9 Finalidade: Calculadora que opera semelhante a calculadora
10 do windows, alem de conter uma caixa de
11 texto que imita uma fita de impressão
12
13 Interpretador: Python 2.4.1
14 Sistema Operacional: Linux, Windows
15
16 Email:perallis@rc.unesp.br
17 """
18
19
20 #Importa todas funcoes do modulo Tkinter
21 from Tkinter import *
22
23
24 #Classe Principal que executa o aplicativo Calculadora
25 class Calculadora:
26
27 def __init__(self,parent):
28 self.myapp=parent
29 self.myapp.title("Calculadora - Phy")
30 #Cria o frame principa
31 self.geral=Frame(self.myapp,bg="gray")
32 self.geral.pack()
33
34 #Cria os frames nescessarios para a disposição dos widgets no programa
35 self.fexibir=Frame(self.geral,bg="gray")
36 self.fzero=Frame(self.geral,bg="gray")
37 self.fum=Frame(self.geral,bg="gray")
38 self.fdois=Frame(self.geral,bg="gray")
39 self.ftreis=Frame(self.geral,bg="gray")
40 self.fquatro=Frame(self.geral,bg="gray")
41
42
43 #Caixa de texto, que servirá para mostrar os numeros
44
45 self.visor=Entry(self.fexibir,width=23,bg="white",fg="blue",justify="right")
46 self.visor.insert(INSERT,0)
47 # Frame geral: Escreve um titulo na primeira linha do programa
48 self.titulo=Label(self.geral,text=" CALCULADORA PYTHON
49 ",bg="gray",fg="black",font=('Helvetica','10','bold'))
50 # Insere a cixa de Texto que seá utilizada para fazer a fita de
51 impressão
52 self.ffita=Frame(self.geral)
53 self.ffita.pack(side="right",padx=15)
54 self.sb=Scrollbar(self.ffita)
55
56 self.fita=Text(self.ffita,width=23,height=13,bg="white",yscrollcommand=self.sb.set)
57 self.sb["command"] = self.fita.yview
58 self.fita.pack(side="left",padx=0)
59 self.sb.pack(side="right",fill=Y)
60
61
62 ## WIDGETS NO FRAME ZERO
63 #########################################################
64 #Botao para reiniciar a calculadora
65
66 self.c=Button(self.fzero,text="C",bg="white",width=4,command=self.zera)
67 #Label para organizar o programa
68 self.space1=Label(self.fzero,bg="gray",text="
69 ")
70 #Botao igual
71
72 self.igual=Button(self.fzero,text="=",bg="white",width=4,command=lambda sin="": self.op(sin))
73
74 ###################################################################################
75
76
77 ## WIDGETS NO FRAME UM
78 ############################################################
79 self.sete=Button(self.fum,text="7",width=4,command=lambda n=7:
80 self.write_visor(n))
81 self.oito=Button(self.fum,text="8",width=4,command=lambda n=8:
82 self.write_visor(n))
83 self.nove=Button(self.fum,text="9",width=4,command=lambda n=9:
84 self.write_visor(n))
85 self.div=Button(self.fum,text="/",fg="red",width=4,
86 command=lambda sin='/': self.op(sin))
87
88 ###################################################################################
89
90 ## WIDGETS NO FRAME DOIS
91 ############################################################
92 self.quatro=Button(self.fdois,text="4",width=4,command=lambda
93 n=4: self.write_visor(n))
94 self.cinco=Button(self.fdois,text="5",width=4,command=lambda
95 n=5: self.write_visor(n))
96 self.seis=Button(self.fdois,text="6",width=4,command=lambda
97 n=6: self.write_visor(n))
98 self.mult=Button(self.fdois,text="*",fg="red",width=4
99 ,command=lambda sin='*': self.op(sin))
100
101 ###################################################################################
102
103 ## WIDGETS NO FRAME TREIS
104 ##########################################################
105 self.um=Button(self.ftreis,text="1",width=4,command=lambda n=1:
106 self.write_visor(n) )
107 self.dois=Button(self.ftreis,text="2",width=4,command=lambda
108 n=2: self.write_visor(n))
109 self.tres=Button(self.ftreis,text="3",width=4,command=lambda
110 n=3: self.write_visor(n))
111 self.menos=Button(self.ftreis,text="-",fg="red",width=4,
112 command=lambda sin='-': self.op(sin) )
113
114 ###################################################################################
115
116 ## WIDGETS NO FRAME
117 QUATRO#########################################################
118 self.zero=Button(self.fquatro,text="0",width=4,command=lambda
119 n=0: self.write_visor(n))
120 self.virg=Button(self.fquatro,text=",",width=4,command=lambda
121 n='.': self.write_visor(n))
122 self.maismenos=Button(self.fquatro,fg="red",text="+/-",width=4,
123 command=lambda n=-1: self.write_visor(n))
124 self.mais=Button(self.fquatro,fg="red",text="+",width=4,
125 command=lambda sin='+': self.op(sin))
126
127 ###################################################################################
128
129 #Frame fgeral
130 self.titulo.pack()
131
132 #Frame fexibir
133 self.fexibir.pack()
134
135 self.visor.pack(ipadx="3")
136
137 #Frame fzero
138 self.fzero.pack()
139
140 self.c.pack(side=LEFT,fill=X,pady="5",padx="2")
141 self.igual.pack(side=LEFT,fill=X,pady="5",padx="2")
142 self.space1.pack()
143
144 #Frame fum
145 self.fum.pack()
146
147 self.sete.pack(side="left",padx=2,pady=2)
148 self.oito.pack(side="left",padx=2,pady=2)
149 self.nove.pack(side="left",padx=2,pady=2)
150 self.div.pack(side="left",padx=2,pady=2)
151
152 #Frame fdois
153 self.fdois.pack()
154 self.seis.pack(side="left",padx=2,pady=2)
155 self.cinco.pack(side="left",padx=2,pady=2)
156 self.quatro.pack(side="left",padx=2,pady=2)
157 self.mult.pack(side="left",padx=2,pady=2)
158
159 #Frame ftreis
160 self.ftreis.pack()
161 self.tres.pack(side="left",padx=2,pady=2)
162 self.dois.pack(side="left",padx=2,pady=2)
163 self.um.pack(side="left",padx=2,pady=2)
164 self.menos.pack(side="left",padx=2,pady=2)
165
166 #Frame fquatro
167 self.fquatro.pack()
168 self.maismenos.pack(side="left",padx=2,pady=2)
169 self.zero.pack(side="left",padx=2,pady=2)
170 self.virg.pack(side="left",padx=2,pady=2)
171 self.mais.pack(side="left",padx=2,pady=2)
172
173 # Variais da classe
174 self.z=0
175 self.w=1
176 self.atual=0
177 self.i=0
178 self.ty=0
179 self.num=0
180 self.prim=0
181 self.h=0
182 self.sa=0
183
184
185
186
187 ###------------------------------Função para realizar as operações
188 aritiméticas --------------------------###
189
190 def op(self,sin):
191 if (self.w==0):
192 self.num=float(self.visor.get())
193 print self.num
194 self.sinal=sin
195 self.w=1
196 self.z=1
197 self.i=0
198 self.ty=0
199 self.divi=0
200 if self.prim==0:
201 self.ty=1
202
203 else :
204 if self.ty==0:
205 self.atual=float(self.visor.get())
206
207 if self.sa==1 and self.ty==1:
208 self.num=float(self.visor.get())
209 self.sa=0
210
211 if self.sinal=='+':
212 self.num=self.num + self.atual
213 elif self.sinal=='-':
214 self.num=self.num - self.atual
215 elif self.sinal=='/' and self.ty!=1 and self.atual!=0:
216 self.num=self.num / self.atual
217 elif self.sinal=='/' and self.atual==0 and self.ty!=1:
218 self.visor.delete(0,END)
219 self.visor.insert(INSERT,"Imposivel dividir")
220 self.divi=1
221 self.prim=1
222 elif self.sinal=='*' and self.ty!=1 and self.prim==1:
223 self.num=self.num * self.atual
224
225 if self.divi==0:
226 self.visor.delete(0,END)
227 self.visor.insert(END,self.num)
228 self.prim=1
229 if self.divi==0 and self.ty==0:
230 self.fita.insert(INSERT,"\n"+self.sinal)
231 self.fita.insert(INSERT,"\n"+str(self.atual))
232 self.fita.insert(INSERT,"\n"+"=")
233 self.fita.insert(INSERT,"\n"+str(self.num))
234
235
236 self.atual=0
237 self.ty=1
238 self.i=0
239 self.w=1
240 self.z=1
241 self.div=0
242 self.sinal=sin
243 ###---------------------------------------- Fim da funçõa
244 aritmética op --------------------------------------###
245
246
247
248
249 ###-------------------------------- Função para escrever os numeros
250 no visor ---------------------------------###
251 def write_visor(self,n):
252 if (self.z==1) and n!=-1:
253 if self.i==0:
254 self.visor.delete(0,END)
255
256 self.visor.insert(INSERT,n)
257 self.w=1
258 self.z=1
259 self.i=1
260 self.ty=0
261 self.prim=1
262
263
264
265 elif self.z==0 and n!=-1:
266 if self.i==0:
267 self.visor.delete(0,END)
268 self.visor.insert(INSERT,n)
269 self.fita.insert(INSERT,n)
270 self.w=0
271 self.i=1
272 self.ty=0
273 if n==-1:
274 self.la=float(self.visor.get()) * (-1)
275 self.visor.delete(0,END)
276 self.visor.insert(END,self.la)
277 self.fita.insert(INSERT,"\n"+"*(-1)")
278 self.fita.insert(INSERT,"\n"+"=")
279 self.fita.insert(INSERT,"\n"+str(self.la))
280 self.sa=1
281
282 ###---------------------------------------- Fim da funçõa
283 write_visor --------------------------------------###
284
285
286
287 ###---------------------------------- Função para reiniciar a calculadora ----------------------------------###
288 def zera(self):
289 self.num=0
290 self.z=0
291 self.w=1
292 self.atual=0
293 self.i=0
294 self.ty=0
295 self.prim=0
296 self.visor.delete(0,END)
297 self.visor.insert(INSERT,0)
298 self.fita.delete('1.0','90.0')
299 ###------------------------------------------- Fim da função
300 zera-------------------------------------------###
301
302
303
304
305 # root Intacia-se pela classe Tk() e inicia a aplicação
306 root=Tk()
307 aplicativo=Calculadora(root)
308 root.mainloop()
