linux下面用C语言设计实现一个计算器
2014-10-20 20:04
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我们对于计算器的功能已经非常熟悉了，这个计算器包括 二进制，八进制，十进制，十六进制，四种格式。格式之间可以相互切换。
能够实现的的运算有，加减乘除 最基本的功能，还有比如 tan sin cos Exp x^y x^3 x^2 n! log ln 求倒数 And Not Or Mod Int取整 等
首先定义头文件，将程序需要的全局变量定义在头文件myhead.h当中，包括两个参与运算的变量，小数点标识，运算符标识，进制标识，以及GTK+图形界面编程中常用的元件指针。
源码如下所示：myhead.h
下面是十六进制显示界面： show_Hex_window.c
十进制显示界面 show_Dec_window.c
八进制显示界面 show_Oct_window.c
二进制显示界面 show_Bin_window.
各种进制之间需要一个转换函数：
Conversion.c
信号模块处理
然后编译连接程序 gcc -o main main.c `pkg-config --libs --cflags gtk+-2.0
然后就可以 ./main 了
能够实现的的运算有，加减乘除 最基本的功能，还有比如 tan sin cos Exp x^y x^3 x^2 n! log ln 求倒数 And Not Or Mod Int取整 等
首先定义头文件，将程序需要的全局变量定义在头文件myhead.h当中，包括两个参与运算的变量，小数点标识，运算符标识，进制标识，以及GTK+图形界面编程中常用的元件指针。
源码如下所示：myhead.h
<span style="font-size:18px;">#include <gtk/gtk.h> double a,b; /*两个参与运算的数*/ double p=0; int hasdot; /*是否有小点数*/ int method; /*用于区别不同的运算*/ int principle; /*标识不同的进制*/ char out[20]="0"; GtkWidget *window; /*这部分时定义元件*/ GtkWidget *vbox; /*垂直框*/ GtkWidget *table1; /*表格一*/ GtkWidget *table2; /*表格二*/ GSList *group; GtkWidget *radio; /*单选按钮*/ GtkWidget *entry; /*文本框*/ GtkWidget *button1; /*42个按钮*/ GtkWidget *button2; GtkWidget *button3; GtkWidget *button4; GtkWidget *button5; GtkWidget *button6; GtkWidget *button7; GtkWidget *button8; GtkWidget *button9; GtkWidget *button10; GtkWidget *button11; GtkWidget *button12; GtkWidget *button13; GtkWidget *button14; GtkWidget *button15; GtkWidget *button16; GtkWidget *button17; GtkWidget *button18; GtkWidget *button19; GtkWidget *button20; GtkWidget *button21; GtkWidget *button22; GtkWidget *button23; GtkWidget *button24; GtkWidget *button25; GtkWidget *button26; GtkWidget *button27; GtkWidget *button28; GtkWidget *button29; GtkWidget *button30; GtkWidget *button31; GtkWidget *button32; GtkWidget *button33; GtkWidget *button34; GtkWidget *button35; GtkWidget *button36; GtkWidget *button37; GtkWidget *button38; GtkWidget *button39; GtkWidget *button40; GtkWidget *button41; GtkWidget *button42;</span>
下面是十六进制显示界面： show_Hex_window.c
<span style="font-size:18px;">#include <gtk/gtk.h>
void show_Hex_window()
{
gtk_button_set_label(GTK_BUTTON(button1)," ");
gtk_widget_show(button1);
gtk_button_set_label(GTK_BUTTON(button2)," ");
gtk_widget_show(button2);
gtk_button_set_label(GTK_BUTTON(button3)," ");
gtk_widget_show(button3);
gtk_button_set_label(GTK_BUTTON(button4)," ");
gtk_widget_show(button4);
gtk_button_set_label(GTK_BUTTON(button6)," ");
gtk_widget_show(button6);
gtk_button_set_label(GTK_BUTTON(button14),"7");
gtk_widget_show(button14);
gtk_button_set_label(GTK_BUTTON(button15),"4");
gtk_widget_show(button15);
gtk_button_set_label(GTK_BUTTON(button18),"A");
gtk_widget_show(button18);
gtk_button_set_label(GTK_BUTTON(button19),"8");
gtk_widget_show(button19);
gtk_button_set_label(GTK_BUTTON(button20),"5");
gtk_widget_show(button20);
gtk_button_set_label(GTK_BUTTON(button21),"2");
gtk_widget_show(button21);
gtk_button_set_label(GTK_BUTTON(button23),"B");
gtk_widget_show(button23);
gtk_button_set_label(GTK_BUTTON(button24),"9");
gtk_widget_show(button24);
gtk_button_set_label(GTK_BUTTON(button25),"6");
gtk_widget_show(button25);
gtk_button_set_label(GTK_BUTTON(button26),"3");
gtk_widget_show(button26);
gtk_button_set_label(GTK_BUTTON(button28),"C");
gtk_widget_show(button28);
gtk_button_set_label(GTK_BUTTON(button33),"D");
gtk_widget_show(button33);
gtk_button_set_label(GTK_BUTTON(button38),"E");
gtk_widget_show(button38);
gtk_button_set_label(GTK_BUTTON(button42),"F");
gtk_widget_show(button42);
}
</span>十进制显示界面 show_Dec_window.c
<span style="font-size:18px;">#include <gtk/gtk.h>
void show_Dec_window()
{
gtk_button_set_label(GTK_BUTTON(button1),"pi");
gtk_widget_show(button1);
gtk_button_set_label(GTK_BUTTON(button2),"sin");
gtk_widget_show(button2);
gtk_button_set_label(GTK_BUTTON(button3),"cos");
gtk_widget_show(button3);
gtk_button_set_label(GTK_BUTTON(button4),"tan");
gtk_widget_show(button4);
gtk_button_set_label(GTK_BUTTON(button6),"Exp");
gtk_widget_show(button6);
gtk_button_set_label(GTK_BUTTON(button14),"7");
gtk_widget_show(button14);
gtk_button_set_label(GTK_BUTTON(button15),"4");
gtk_widget_show(button15);
gtk_button_set_label(GTK_BUTTON(button18)," ");
gtk_widget_show(button18);
gtk_button_set_label(GTK_BUTTON(button19),"8");
gtk_widget_show(button19);
gtk_button_set_label(GTK_BUTTON(button20),"5");
gtk_widget_show(button20);
gtk_button_set_label(GTK_BUTTON(button21),"2");
gtk_widget_show(button21);
gtk_button_set_label(GTK_BUTTON(button23)," ");
gtk_widget_show(button23);
gtk_button_set_label(GTK_BUTTON(button24),"9");
gtk_widget_show(button24);
gtk_button_set_label(GTK_BUTTON(button25),"6");
gtk_widget_show(button25);
gtk_button_set_label(GTK_BUTTON(button26),"3");
gtk_widget_show(button26);
gtk_button_set_label(GTK_BUTTON(button28)," ");
gtk_widget_show(button28);
gtk_button_set_label(GTK_BUTTON(button33)," ");
gtk_widget_show(button33);
gtk_button_set_label(GTK_BUTTON(button38)," ");
gtk_widget_show(button38);
gtk_button_set_label(GTK_BUTTON(button42)," ");
gtk_widget_show(button42);
}
</span>八进制显示界面 show_Oct_window.c
<span style="font-size:18px;">#include <gtk/gtk.h>
void show_Oct_window()
{
gtk_button_set_label(GTK_BUTTON(button1)," ");
gtk_widget_show(button1);
gtk_button_set_label(GTK_BUTTON(button2)," ");
gtk_widget_show(button2);
gtk_button_set_label(GTK_BUTTON(button3)," ");
gtk_widget_show(button3);
gtk_button_set_label(GTK_BUTTON(button4)," ");
gtk_widget_show(button4);
gtk_button_set_label(GTK_BUTTON(button6)," ");
gtk_widget_show(button6);
gtk_button_set_label(GTK_BUTTON(button14),"7");
gtk_widget_show(button14);
gtk_button_set_label(GTK_BUTTON(button15),"4");
gtk_widget_show(button15);
gtk_button_set_label(GTK_BUTTON(button18)," ");
gtk_widget_show(button18);
gtk_button_set_label(GTK_BUTTON(button19)," ");
gtk_widget_show(button19);
gtk_button_set_label(GTK_BUTTON(button20),"5");
gtk_widget_show(button20);
gtk_button_set_label(GTK_BUTTON(button21),"2");
gtk_widget_show(button21);
gtk_button_set_label(GTK_BUTTON(button23)," ");
gtk_widget_show(button23);
gtk_button_set_label(GTK_BUTTON(button24)," ");
gtk_widget_show(button24);
gtk_button_set_label(GTK_BUTTON(button25),"6");
gtk_widget_show(button25);
gtk_button_set_label(GTK_BUTTON(button26),"3");
gtk_widget_show(button26);
gtk_button_set_label(GTK_BUTTON(button28)," ");
gtk_widget_show(button28);
gtk_button_set_label(GTK_BUTTON(button33)," ");
gtk_widget_show(button33);
gtk_button_set_label(GTK_BUTTON(button38)," ");
gtk_widget_show(button38);
gtk_button_set_label(GTK_BUTTON(button42)," ");
gtk_widget_show(button42);
}
</span>二进制显示界面 show_Bin_window.
<span style="font-size:18px;">#include <gtk/gtk.h>
void show_Bin_window()
{
gtk_button_set_label(GTK_BUTTON(button1)," ");
gtk_widget_show(button1);
gtk_button_set_label(GTK_BUTTON(button2)," ");
gtk_widget_show(button2);
gtk_button_set_label(GTK_BUTTON(button3)," ");
gtk_widget_show(button3);
gtk_button_set_label(GTK_BUTTON(button4)," ");
gtk_widget_show(button4);
gtk_button_set_label(GTK_BUTTON(button6)," ");
gtk_widget_show(button6);
gtk_button_set_label(GTK_BUTTON(button14)," ");
gtk_widget_show(button14);
gtk_button_set_label(GTK_BUTTON(button15)," ");
gtk_widget_show(button15);
gtk_button_set_label(GTK_BUTTON(button18)," ");
gtk_widget_show(button18);
gtk_button_set_label(GTK_BUTTON(button19)," ");
gtk_widget_show(button19);
gtk_button_set_label(GTK_BUTTON(button20)," ");
gtk_widget_show(button20);
gtk_button_set_label(GTK_BUTTON(button21)," ");
gtk_widget_show(button21);
gtk_button_set_label(GTK_BUTTON(button23)," ");
gtk_widget_show(button23);
gtk_button_set_label(GTK_BUTTON(button24)," ");
gtk_widget_show(button24);
gtk_button_set_label(GTK_BUTTON(button25)," ");
gtk_widget_show(button25);
gtk_button_set_label(GTK_BUTTON(button26)," ");
gtk_widget_show(button26);
gtk_button_set_label(GTK_BUTTON(button28)," ");
gtk_widget_show(button28);
gtk_button_set_label(GTK_BUTTON(button33)," ");
gtk_widget_show(button33);
gtk_button_set_label(GTK_BUTTON(button38)," ");
gtk_widget_show(button38);
gtk_button_set_label(GTK_BUTTON(button42)," ");
gtk_widget_show(button42);
}
</span>各种进制之间需要一个转换函数：
Conversion.c
<span style="font-size:18px;">#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
int Conversion(char num[20], int t, int n)
{
int i,ii,j,k,m,x,b[30],h[30],c;
double d,r;
ii=0;
p=0;
memset(out,0,20);
m=strlen(num);//求字符串的长度
x=m;
for(k=0,j=0;k<m;k++)//主要是分段，以小数点为界限，只转换整数部分
{
if(num[k]=='.')
{
x=k;
break;
}
}
for(j=x-1;j>=0;j--)
{
if(num[j]=='-') break; //符号的处理
if(num[j]=='A') r=10;
else if(num[j]=='B')
r=11;
else if(num[j]=='C')
r=12;
else if(num[j]=='D')
r=13;
else if(num[j]=='E')
r=14;
else if(num[j]=='F')
r=15;
else
r=num[j]-'0';//将字符转换成数字
p=p+r*(pow ((double)t,(double)(x-j-1)));//计算结果
}
if(num[x]=='.')
{
for(j=x+1;j<m;j++)
{
if(num[j]=='A') r=10;
else if(num[j]=='B')
r=11;
else if(num[j]=='C')
r=12;
else if(num[j]=='D')
r=13;
else if(num[j]=='E')
r=14;
else if(num[j]=='F')
r=15;
else
r=num[j]-'0';//将字符转换成数字
p=p+r*(pow ((double)t, (double)(x-j)));
}
}
//g_print("%f",p);
if(n==10)//如果要转换成十进制
{
if(num[0]=='-')
{
p=-p;
}
return 0;
}
else //如果要转换成其他进制
{
k=(int)p;
i=0;
while(k)//判定需要转换的数是否变为0
{
h[i++]=k%n;//取余，进行进制转换，但是顺序与正确值相反
k/=n;//转换一位之后进行相应的变化
}
c=0;
if(p!=(int)p)//选择性计算，如果是整数就不用进行这一步的计算了
{
d=p-(int)p;//取小数部分
while(d!=0)
{
b[c]=(int)(d*n);//算法为×N取整
d=d*n-b[c];
c++;
if(c>=10)
break;//主要是控制小数后面万一出现无限小数的时候好跳出循环以免出现死循环
}
}
if(num[0]=='-')
{
out[0]='-';
ii++;
}
for(j=i-1;j>=0;j--,ii++)//反序输出,大于10的数字进行相应的变化
{
if(h[j]==10) out[ii]='A';
else if(h[j]==11) out[ii]='B';
else if(h[j]==12) out[ii]='C';
else if(h[j]==13) out[ii]='D';
else if(h[j]==14) out[ii]='E';
else if(h[j]==15) out[ii]='F';
else if(h[j]==9) out[ii]='9';
else if(h[j]==8) out[ii]='8';
else if(h[j]==7) out[ii]='7';
else if(h[j]==6) out[ii]='6';
else if(h[j]==5) out[ii]='5';
else if(h[j]==4) out[ii]='4';
else if(h[j]==3) out[ii]='3';
else if(h[j]==2) out[ii]='2';
else if(h[j]==1) out[ii]='1';
else out[ii]='0';
}
if(p!=(int)p)//选择性输出，这样可以节约输出时间和程序的运行时间
{
out[ii++]='.';
for(j=0;j<c;j++)//正序输出
{
if(b[j]==10) out[ii]='A';
else if(b[j]==11) out[ii]='B';
else if(b[j]==12) out[ii]='C';
else if(b[j]==13) out[ii]='D';
else if(b[j]==14) out[ii]='E';
else if(b[j]==15) out[ii]='F';
else if(b[j]==9) out[ii]='9';
else if(b[j]==8) out[ii]='8';
else if(b[j]==7) out[ii]='7';
else if(b[j]==6) out[ii]='6';
else if(b[j]==5) out[ii]='5';
else if(b[j]==4) out[ii]='4';
else if(b[j]==3) out[ii]='3';
else if(b[j]==2) out[ii]='2';
else if(b[j]==1) out[ii]='1';
else out[ii]='0';
ii++;
}
}
//puts(out);
return 0;
}
}
</span>信号模块处理
<span style="font-size:18px;">#include <gtk/gtk.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void Binary_Operator() /*双目运算*/
{
char num[20];
strcpy(num, gtk_entry_get_text(GTK_ENTRY(entry)));/*取得文本框的内容*/
if(a==0) /*如果没有第一个数，则存储为第一个数*/
{
if(principle==16)
{
Conversion (num,16,10); /*将输入的十六进制数转换为十进制*/
a=p;
}
if(principle==10)
{
a=atof(num); /*直接转换成浮点型*/
}
if(principle==8)
{
Conversion (num,8,10); /*将输入的八进制数转换为十进制*/
a=p;
}
if(principle==2)
{
Conversion (num,2,10); /*将输入的二进制数转换为十进制*/
a=p;
}
gtk_entry_set_text(GTK_ENTRY(entry),""); /*清空文本框*/
}
else /*如果已有第一个数，则应存储为第二个数*/
{
if(principle==16)
{
Conversion(num,16,10); /*将输入的十六进制数转换为十进制*/
b=p;
}
if(principle==10)
{
b=atof(num); /*直接转换成浮点型*/
}
if(principle==8)
{
Conversion(num,8,10); /*将输入的八进制数转换为十进制*/
b=p;
}
if(principle==2)
{
Conversion(num,2,10); /*将输入的二进制数转换为十进制*/
b=p;
}
}
hasdot=0; /*表示已经没有小数点*/
}
void Right_output()
{
char num[20];
gcvt(a,32,num); /*运算结果转换成字符串*/
if(principle==16)
{
Conversion(num,10,16); /*将运算结果（十进制字符串）转换成十六进制数*/
gtk_entry_set_text(GTK_ENTRY(entry),out); /*显示结果*/
}
if(principle==10)
{
//gcvt(a,32,num); /*运算结果转换成字符串*/
gtk_entry_set_text(GTK_ENTRY(entry),num); /*直接显示结果*/
}
if(principle==8)
{
Conversion(num,10,8); /*将运算结果（十进制字符串）转换成八进制数*/
gtk_entry_set_text(GTK_ENTRY(entry),out); /*显示结果*/
}
if(principle==2)
{
Conversion(num,10,2); /*将运算结果（十进制字符串）转换成二进制数*/
gtk_entry_set_text(GTK_ENTRY(entry),out); /*显示结果*/
}
a=0;
b=0;
method=0;
}
float fun(int c) /*递归函数求阶乘*/
{
float d;
if(c==0 || c==1) d=1;
else d=fun(c-1)*c;
return d;
}
void output()
{
char num[20]="0";
strcpy(num, gtk_entry_get_text(GTK_ENTRY(entry))); /* 取得文本框输入的内容*/
if(principle==16)
{
Conversion(num,16,10); /*将输入的十六进制数转换为十进制*/
b=p;
}
if(principle==10)
{
b=atof(num); /*直接转换成浮点型*/
}
if(principle==8)
{
Conversion(num,8,10); /*将输入的八进制数转换为十进制*/
b=p;
}
if(principle==2)
{
Conversion(num,2,10); /*将输入的二进制数转换为十进制*/
b=p;
}
switch(method)
{
case 0:
a=a+b; Right_output(); break;
case 1:
a=a-b; Right_output(); break;
case 2:
a=a*b; Right_output(); break;
case 3:
if(b==0)
{
a=0; b=0; method=0;
gtk_entry_set_text (GTK_ENTRY(entry),
g_locale_to_utf8("除数不能为零",-1,NULL,NULL,NULL)); /*显示出错信息*/
}
else
{
a=a/b;
Right_output();
}break;
case 4:
a=pow(a,b); Right_output(); break;
case 5:
a=((int)a) & ((int)b); Right_output(); break;
case 6:
a=((int)a) | ((int)b); Right_output(); break;
case 7:
a=((int)a) ^ ((int)b); Right_output(); break;
case 8:
if(b==0)
{
a=0; b=0; method=0;
gtk_entry_set_text (GTK_ENTRY(entry),
g_locale_to_utf8("除数不能为零",-1,NULL,NULL,NULL)); /*显示出错信息*/
}
else
{
a=((int)a) % ((int)b);
Right_output();
}break;
case 9:
a=sin(b); Right_output(); break;
case 10:
a=cos(b); Right_output(); break;
case 11:
a=tan(b); Right_output(); break;
case 12:
a=exp(b); Right_output(); break;
case 13:
a=b*b*b; Right_output(); break;
case 14:
a=b*b; Right_output(); break;
case 15:
if(b<=0)
{
a=0; b=0; method=0;
gtk_entry_set_text (GTK_ENTRY(entry),
g_locale_to_utf8("对数必须为正数",-1,NULL,NULL,NULL)); /*显示出错信息*/
}
else
{
a=log(b);
Right_output();
}break;
case 16:
if(b<=0)
{
a=0; b=0; method=0;
gtk_entry_set_text (GTK_ENTRY(entry),
g_locale_to_utf8("对数必须为正数",-1,NULL,NULL,NULL)); /*显示出错信息*/
}
else
{
a=log10(b);
Right_output();
}break;
case 17:
if(b<0)
{
a=0; b=0; method=0;
gtk_entry_set_text (GTK_ENTRY(entry),
g_locale_to_utf8("函数输入无效",-1,NULL,NULL,NULL)); /*显示出错信息*/
}
else
{
a=fun((int)(b));
Right_output();
}break;
case 18:
if(b==0)
{
a=0; b=0; method=0;
gtk_entry_set_text (GTK_ENTRY(entry),
g_locale_to_utf8("除数不能为零",-1,NULL,NULL,NULL)); /*显示出错信息*/
}
else
{
a=1/b;
Right_output();
}break;
case 19:
a=~((int)b); Right_output(); break;
case 20:
a=floor(b); Right_output(); break;
default: break;
}
}
void Add(GtkWidget *widget, gpointer data) /*加法运算*/
{
method=0;
Binary_Operator();
}
void Sub(GtkWidget *widget,gpointer data) /*减法运算*/
{
method=1;
Binary_Operator();
}
void Mul(GtkWidget *widget,gpointer data) /*乘法运算*/
{
method=2;
Binary_Operator();
}
void Division(GtkWidget *widget,gpointer data) /*除法运算*/
{
method=3;
Binary_Operator();
}
void Mathpowxy(GtkWidget *widget,gpointer data) /*幂运算*/
{
method=4;
Binary_Operator();
}
void And(GtkWidget *widget,gpointer data) /*逻辑与*/
{
method=5;
Binary_Operator();
}
void Or(GtkWidget *widget,gpointer data) /*逻辑或*/
{
method=6;
Binary_Operator();
}
void Xor(GtkWidget *widget,gpointer data) /*逻辑异或*/
{
method=7;
Binary_Operator();
}
void Mod(GtkWidget *widget,gpointer data) /*模运算(取余)*/
{
method=8;
Binary_Operator();
}
void Sin(GtkWidget *widget,gpointer data) /*求正弦（按弧度值）*/
{
method=9;
output();
}
void Cos(GtkWidget *widget,gpointer data) /*求余弦（按弧度值）*/
{
method=10;
output();
}
void Tan(GtkWidget *widget,gpointer data) /*求正切（按弧度值）*/
{
method=11;
output();
}
void Exp(GtkWidget *widget,gpointer data) /*指数运算*/
{
method=12;
output();
}
void Cube(GtkWidget *widget,gpointer data) /*立方*/
{
method=13;
output();
}
void Square(GtkWidget *widget,gpointer data) /*平方*/
{
method=14;
output();
}
void Log_e(GtkWidget *widget,gpointer data) /*底数为e求对数*/
{
method=15;
output();
}
void Log_10(GtkWidget *widget,gpointer data) /*底数为10求对数*/
{
method=16;
output();
}
void Factorial(GtkWidget *widget,gpointer data) /*阶乘*/
{
method=17;
output();
}
void Inverse(GtkWidget *widget,gpointer data) /*求倒数*/
{
method=18;
output();
}
void Not(GtkWidget *widget,gpointer data) /*逻辑非*/
{
method=19;
output();
}
void Floor(GtkWidget *widget,gpointer data) /*取整*/
{
method=20;
output();
}
void dot(GtkWidget *widget,gpointer data)
{
if(hasdot==0) /* 没有小数点则添加一个小数点。*/
{
gtk_entry_append_text (GTK_ENTRY(entry), gtk_button_get_label(widget));
hasdot=1;/* 表示有一个小数点。*/
}
}
void Sign()
{
char num[20];
float c;
strcpy(num, gtk_entry_get_text(GTK_ENTRY(entry)));/*取得文本框的内容。*/
c=atof(num); /*转换成浮点型*/
c=-c;
gcvt(c,32,num); /*结果转换成字符串*/
gtk_entry_set_text(GTK_ENTRY(entry),num); /*显示结果*/
}
void clear(GtkWidget *widget,gpointer data)
{
gtk_entry_set_text(GTK_ENTRY(entry),"");
hasdot=0;
a=0;
b=0;
method=0;
}
void input (GtkWidget *widget, gpointer data)
{
gtk_entry_append_text (GTK_ENTRY (entry), gtk_button_get_label(widget));
}
void input_pi (GtkWidget *widget, gpointer data)
{
gtk_entry_set_text (GTK_ENTRY (entry), "3.1415926535897932384626433832795");
}
void addsignal()
{
/* 下面的17个按钮实现数字的输入*/
g_signal_connect (G_OBJECT(button1), "clicked", G_CALLBACK(input_pi), NULL);
g_signal_connect (G_OBJECT(button14), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button15), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button16), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button17), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button18), "clicked", G_CALLBACK(input), NULL); /*A*/
g_signal_connect (G_OBJECT(button19), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button20), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button21), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button23), "clicked", G_CALLBACK(input), NULL); /*B*/
g_signal_connect (G_OBJECT(button24), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button25), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button26), "clicked", G_CALLBACK(input), NULL);
g_signal_connect (G_OBJECT(button28), "clicked", G_CALLBACK(input), NULL); /*C*/
g_signal_connect (G_OBJECT(button33), "clicked", G_CALLBACK(input), NULL); /*D*/
g_signal_connect (G_OBJECT(button38), "clicked", G_CALLBACK(input), NULL); /*E*/
g_signal_connect (G_OBJECT(button42), "clicked", G_CALLBACK(input), NULL); /*F*/
/*下面的按钮实现小数点的输入*/
g_signal_connect (G_OBJECT(button27), "clicked", G_CALLBACK(dot), NULL);
/*下面的按钮实现正负号的输入*/
g_signal_connect (G_OBJECT(button22), "clicked", G_CALLBACK(Sign), NULL);
/*下面的按钮实现各种运算的输入*/
g_signal_connect (G_OBJECT(button2), "clicked", G_CALLBACK(Sin), NULL);
g_signal_connect (G_OBJECT(button3), "clicked", G_CALLBACK(Cos), NULL);
g_signal_connect (G_OBJECT(button4), "clicked", G_CALLBACK(Tan), NULL);
g_signal_connect (G_OBJECT(button6), "clicked", G_CALLBACK(Exp), NULL);
g_signal_connect (G_OBJECT(button7), "clicked", G_CALLBACK(Mathpowxy), NULL);
g_signal_connect (G_OBJECT(button8), "clicked", G_CALLBACK(Cube), NULL);
g_signal_connect (G_OBJECT(button9), "clicked", G_CALLBACK(Square), NULL);
g_signal_connect (G_OBJECT(button10), "clicked", G_CALLBACK(Log_e), NULL);
g_signal_connect (G_OBJECT(button11), "clicked", G_CALLBACK(Log_10), NULL);
g_signal_connect (G_OBJECT(button12), "clicked", G_CALLBACK(Factorial), NULL);
g_signal_connect (G_OBJECT(button13), "clicked", G_CALLBACK(Inverse), NULL);
g_signal_connect (G_OBJECT(button32), "clicked", G_CALLBACK(Add), NULL);
g_signal_connect (G_OBJECT(button31), "clicked", G_CALLBACK(Sub), NULL);
g_signal_connect (G_OBJECT(button30), "clicked", G_CALLBACK(Mul), NULL);
g_signal_connect (G_OBJECT(button29), "clicked", G_CALLBACK(Division), NULL);
g_signal_connect (G_OBJECT(button35), "clicked", G_CALLBACK(And), NULL);
g_signal_connect (G_OBJECT(button36), "clicked", G_CALLBACK(Or), NULL);
g_signal_connect (G_OBJECT(button37), "clicked", G_CALLBACK(Mod), NULL);
g_signal_connect (G_OBJECT(button39), "clicked", G_CALLBACK(Not), NULL);
g_signal_connect (G_OBJECT(button40), "clicked", G_CALLBACK(Xor), NULL);
g_signal_connect (G_OBJECT(button41), "clicked", G_CALLBACK(Floor), NULL);
/* 下面的按钮实现复位功能*/
g_signal_connect (G_OBJECT(button34), "clicked", G_CALLBACK(clear),NULL);
/* 下面的按钮实现结果输出*/
g_signal_connect (G_OBJECT(button5), "clicked", G_CALLBACK(output),NULL);
g_signal_connect (G_OBJECT(window),"delete_event" ,gtk_main_quit, NULL);
}
</span>主函数 main.c<span style="font-size:18px;">#include <stdlib.h>
#include <gtk/gtk.h>
#include <math.h>
#include "myhead.h"
#include "show_Hex_window.c"
#include "show_Dec_window.c"
#include "show_Oct_window.c"
#include "show_Bin_window.c"
#include "Signal_Process.c"
#include "Conversion.c"
void on_clicked(GtkWidget *widget, gpointer data)
{
if(GTK_TOGGLE_BUTTON(widget)->active)
{
if((char *)data=="Hex")
{
show_Hex_window();
principle=16;
}
if((char *)data=="Dec")
{
show_Dec_window();
principle=10;
}
if((char *)data=="Oct")
{
show_Oct_window();
principle=8;
}
if((char *)data=="Bin")
{
show_Bin_window();
principle=2;
}
}
}
int main (int argc, char *argv[])
{
a=0;
b=0;
hasdot=0;
gtk_set_locale();
gtk_rc_add_default_file("./gtkrc.zh_CN");
gtk_init (&argc,&argv); /* 建立窗口。*/
method=0; /*运算方法。*/
window=gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window),
g_locale_to_utf8("我的计算器",-1,NULL,NULL,NULL));
vbox = gtk_vbox_new (FALSE, 0); /*创建一个垂直框*/
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
table1 = gtk_table_new (2,4,FALSE); /*建立一个2行4列的表格1*/
gtk_box_pack_start (GTK_BOX (vbox), table1, TRUE, FALSE, 0);
gtk_widget_show (table1);
table2= gtk_table_new (5,9,FALSE); /*建立一个5行9列的表格*/
gtk_box_pack_start (GTK_BOX (vbox), table2, TRUE, FALSE, 0);
gtk_widget_show (table2);
entry = gtk_entry_new ( ); /*用于输入和输出的文本框*/
gtk_table_attach (GTK_TABLE (table1), entry, 0, 4, 0, 1,
(GtkAttachOptions) (GTK_EXPAND | GTK_FILL),
(GtkAttachOptions) (0),0,0);
gtk_widget_show (entry);
button1 = gtk_button_new_with_mnemonic("pi"); /*pi*/
gtk_table_attach (GTK_TABLE (table2), button1, 0, 1, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button1,40,30);
button2 = gtk_button_new_with_mnemonic("sin"); /*sin*/
gtk_table_attach (GTK_TABLE (table2), button2, 0, 1, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button3 = gtk_button_new_with_mnemonic("cos"); /*cos*/
gtk_table_attach (GTK_TABLE (table2), button3, 0, 1, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button4 = gtk_button_new_with_mnemonic("tan"); /*tan*/
gtk_table_attach (GTK_TABLE (table2), button4, 0, 1, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button5 = gtk_button_new_with_mnemonic("="); /*===*/
gtk_widget_show (button5);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button5, 0, 3, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button6 = gtk_button_new_with_mnemonic("Exp"); /*Exp*/
gtk_table_attach (GTK_TABLE (table2), button6, 1, 2, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button6,40,30);
button7 = gtk_button_new_with_mnemonic("x^y"); /*x^y*/
gtk_widget_show (button7);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button7, 1, 2, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button8 = gtk_button_new_with_mnemonic("x^3"); /*x^3*/
gtk_widget_show (button8);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button8, 1, 2, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button9 = gtk_button_new_with_mnemonic("x^2"); /*x^2*/
gtk_widget_show (button9);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button9, 1, 2, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button10 = gtk_button_new_with_mnemonic("ln"); /*ln*/
gtk_widget_show (button10);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button10, 2, 3, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button10,40,30);
button11 = gtk_button_new_with_mnemonic("log"); /*log*/
gtk_widget_show (button11);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button11, 2, 3, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button12 = gtk_button_new_with_mnemonic("n!"); /*n!*/
gtk_widget_show (button12);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button12, 2, 3, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button13 = gtk_button_new_with_mnemonic("1/x "); /*1/x*/
gtk_widget_show (button13);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button13, 2, 3, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button14 = gtk_button_new_with_label("7"); /*数字按钮7*/
gtk_table_attach (GTK_TABLE (table2), button14, 3, 4, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button14,40,30);
button15 = gtk_button_new_with_mnemonic("4"); /*数字按钮4*/
gtk_table_attach (GTK_TABLE (table2), button15, 3, 4, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button16 = gtk_button_new_with_mnemonic("1"); /*数字按钮1*/
gtk_widget_show (button16);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button16, 3, 4, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button17 = gtk_button_new_with_mnemonic("0"); /*数字按钮0*/
gtk_widget_show (button17);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button17, 3, 4, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button18 = gtk_button_new_with_mnemonic("A"); /*数字按钮A*/
gtk_table_attach (GTK_TABLE (table2), button18, 3, 4, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button19 = gtk_button_new_with_mnemonic("8"); /*数字按钮8*/
gtk_table_attach (GTK_TABLE (table2), button19, 4, 5, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button19,40,30);
button20 = gtk_button_new_with_mnemonic("5"); /*数字按钮5*/
gtk_table_attach (GTK_TABLE (table2), button20, 4, 5, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button21 = gtk_button_new_with_mnemonic("2"); /*数字按钮2*/
gtk_table_attach (GTK_TABLE (table2), button21, 4, 5, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button22 = gtk_button_new_with_mnemonic("+/-"); /*+/-*/
gtk_widget_show (button22);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button22, 4, 5, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button23 = gtk_button_new_with_mnemonic("B"); /*数字按钮B*/
gtk_table_attach (GTK_TABLE (table2), button23, 4, 5, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button24 = gtk_button_new_with_mnemonic("9"); /*数字按钮9*/
gtk_table_attach (GTK_TABLE (table2), button24, 5, 6, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button24,40,30);
button25 = gtk_button_new_with_mnemonic("6"); /*数字按钮6*/
gtk_table_attach (GTK_TABLE (table2), button25, 5, 6, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button26 = gtk_button_new_with_mnemonic("3"); /*数字按钮3*/
gtk_table_attach (GTK_TABLE (table2), button26, 5, 6, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button27 = gtk_button_new_with_mnemonic("."); /*小数点*/
gtk_widget_show (button27);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button27, 5, 6, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button28 = gtk_button_new_with_mnemonic("C"); /*数字按钮C*/
gtk_table_attach(GTK_TABLE (table2), button28, 5, 6, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button29 = gtk_button_new_with_mnemonic("/"); /*除法*/
gtk_widget_show (button29);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button29, 6, 7, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button29,40,30);
button30 = gtk_button_new_with_mnemonic("*"); /*乘法*/
gtk_widget_show (button30);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button30, 6, 7, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button31 = gtk_button_new_with_mnemonic("-"); /*减法*/
gtk_widget_show (button31);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button31, 6, 7, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button32 = gtk_button_new_with_mnemonic("+"); /*加法*/
gtk_widget_show (button32);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button32, 6, 7, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button33 = gtk_button_new_with_mnemonic("D"); /*D*/
gtk_table_attach (GTK_TABLE(table2), button33, 6, 7, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button34 = gtk_button_new_with_mnemonic("CR"); /*CR*/
gtk_widget_show (button34);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button34, 7, 9, 0, 1,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
gtk_widget_set_size_request (button34,80,30);
button35 = gtk_button_new_with_mnemonic("And"); /*And*/
gtk_widget_show (button35);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button35, 7, 8, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button36 = gtk_button_new_with_mnemonic("Or"); /*Or*/
gtk_widget_show (button36);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button36, 7, 8, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button37 = gtk_button_new_with_mnemonic("Mod"); /*Mod*/
gtk_widget_show (button37);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button37, 7, 8, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button38 = gtk_button_new_with_mnemonic("E"); /*E*/
gtk_table_attach (GTK_TABLE(table2), button38, 7, 8, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button39 = gtk_button_new_with_mnemonic("Not"); /*Not*/
gtk_widget_show (button39);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button39, 8, 9, 1, 2,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button40 = gtk_button_new_with_mnemonic("Xor"); /*Xor*/
gtk_widget_show (button40);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button40, 8, 9, 2, 3,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button41 = gtk_button_new_with_mnemonic("Int"); /*Int*/
gtk_widget_show (button41);/*常显示，不变*/
gtk_table_attach (GTK_TABLE (table2), button41, 8, 9, 3, 4,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
button42 = gtk_button_new_with_mnemonic("F"); /*F*/
gtk_table_attach (GTK_TABLE(table2), button42, 8, 9, 4, 5,
(GtkAttachOptions) (GTK_FILL),
(GtkAttachOptions) (0), 0, 0);
/*下面是创建四个单选按钮，并将"十进制"按钮设置为默认选中*/
radio = gtk_radio_button_new_with_label (NULL,
g_locale_to_utf8("十六进制",-1,NULL,NULL,NULL));
g_signal_connect(GTK_OBJECT(radio),"clicked",
G_CALLBACK(on_clicked),"Hex");
gtk_table_attach (GTK_TABLE (table1), radio, 0, 1, 1, 2,
(GtkAttachOptions) (GTK_EXPAND | GTK_FILL),
(GtkAttachOptions) (0),0,0);
gtk_widget_show (radio);
group = gtk_radio_button_group (GTK_RADIO_BUTTON(radio));
radio = gtk_radio_button_new_with_label (group,
g_locale_to_utf8("十进制",-1,NULL,NULL,NULL));
g_signal_connect(GTK_OBJECT(radio),"clicked",
G_CALLBACK(on_clicked),"Dec");
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio),TRUE);/*十进制radio设置为默认选中状态*/
gtk_table_attach (GTK_TABLE (table1), radio, 1, 2, 1, 2,
(GtkAttachOptions) (GTK_EXPAND | GTK_FILL),
(GtkAttachOptions) (0),0,0);
gtk_widget_show (radio);
group = gtk_radio_button_group (GTK_RADIO_BUTTON(radio));
radio = gtk_radio_button_new_with_label (group,
g_locale_to_utf8("八进制",-1,NULL,NULL,NULL));
g_signal_connect(GTK_OBJECT(radio),"clicked",
G_CALLBACK(on_clicked),"Oct");
gtk_table_attach (GTK_TABLE (table1), radio, 2, 3, 1, 2,
(GtkAttachOptions) (GTK_EXPAND | GTK_FILL),
(GtkAttachOptions) (0),0,0);
gtk_widget_show (radio);
group = gtk_radio_button_group (GTK_RADIO_BUTTON(radio));
radio = gtk_radio_button_new_with_label (group,
g_locale_to_utf8("二进制",-1,NULL,NULL,NULL));
g_signal_connect(GTK_OBJECT(radio),"clicked",
G_CALLBACK(on_clicked),"Bin");
gtk_table_attach (GTK_TABLE (table1), radio, 3, 4, 1, 2,
(GtkAttachOptions) (GTK_EXPAND | GTK_FILL),
(GtkAttachOptions) (0),0,0);
gtk_widget_show (radio);
addsignal (); /*添加事件。*/
gtk_widget_show (window);
gtk_main ();
return 0;
}
</span>然后编译连接程序 gcc -o main main.c `pkg-config --libs --cflags gtk+-2.0
然后就可以 ./main 了
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