第133页的gtk+编程例子——计算器应用改写网上的例子用gtk4编译
来源：《GTK的计算器》
https://blog.csdn.net/zhouzhouzf/article/details/17097999
例子程序是在gtk2.0编译的，之前修改许多地方才能在gtk3.0编译通过，如今再修改能在gtk4编译通过
使用gtk2.0编译要安装gtk2-devel，使用gtk3.0编译要安装gtk3-devel，使用gtk4.0编译要安装gtk4-devel，注意pkg-config --cflags gtk4是gtk4,而不是gtk±4.0
在openSUSE-Leap-15.5-DVD-x86_64的gnome41.8桌面环境下编译的，其中pkg-config --cflags gtk4两边有反引号括起来的，pkg-config --libs gtk4也是一样两边有反引号括起来的，因为报错undefined reference to symbol ‘exp@@GLIBC_2.29’，所以一定要加上-lm选项，> mistake.text 2>&1 ; gedit mistake.text表示将编译过程的错误信息保存到文本文件mistake.text，编译完成后马上打开查看
ruhong@localhost:~/gtk/calculator> gcc -g -Wall -lm pkg-config --cflags gtk4 -o zhouzhouzf4 zhouzhouzf4.c pkg-config --libs gtk4 > mistake.text 2>&1 ; gedit mistake.text
ruhong@localhost:~/gtk/calculator> ./zhouzhouzf4
#include <gtk/gtk.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
double a , b;
int hasdot; /*是否有小数点*/
int method; /*区别不同的运算*/
char out[20] = "0";
GtkWidget *entry1;
GtkEntryBuffer *buffer1;
/* 在gtk4中entry与text_view一样有buffer，文字内容存储在buffer中，操作buffer才能改变文字内容 */
/**************************************************************************************************************/
/*双目运算函数*/
void Binary_Operator( )
{
char num[20];
strcpy(num , gtk_entry_buffer_get_text(GTK_ENTRY_BUFFER(buffer1)));
if( a == 0 ) /*如果没有第一个数，则存储为第一个数*/
{
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "", -1);
a = atof(num); /*字符串转换成浮点型*/
}
else
{
b = atof(num);
}
hasdot = 0; /*表示没有小数点*/
}
/*单目运算的结果输出*/
void Right_output()
{
char num[20];
gcvt(a , 32 , num); /*运算结果浮点型转换成字符串*/
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), num, -1); /*直接显示结果*/
a = 0;
b = 0;
method = 0;
}
/*递归函数求阶乘*/
float fun(int c)
{
float d;
if( c == 0 || c == 1 )
d = 1;
else
d = fun(c - 1)*c;
return d;
}
/*双目运算的结果输出*/
void output()
{
char num[20] = "0";
strcpy(num , gtk_entry_buffer_get_text(GTK_ENTRY_BUFFER(buffer1))); /*取得文本框的内容*/
b = atof(num); /*字符型转换成浮点型*/
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_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "Remainder can't for 0!", -1);
}
else
{
a = a / b ; Right_output() ; /*/*/
} break;
case 4:
a = pow(a , b) ; Right_output() ; break; /*pow 算a的b次幂X^Y*/
case 5:
a = ((int )a) & ((int )b) ; Right_output() ; break; /*& and*/
case 6:
a = ((int )a) | ((int )b) ; Right_output() ; break; /*| or*/
case 7:
a = ((int )a) ^ ((int )b) ; Right_output() ; break; /*^ 异或 xor*/
case 8:
if( b == 0 )
{
a = 0;
b = 0;
method = 0;
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "Remainder can't for 0!", -1);
}
else
{
a = ((int )a) % ((int )b); Right_output(); /*%取模(取余) mod*/
} break;
case 9:
a = sin( b ); Right_output() ; break; /*sin*/
case 10:
a = cos( b ); Right_output() ; break; /*cos*/
case 11:
a = tan( b ); Right_output() ; break; /*tan*/
case 12:
a = exp( b ); Right_output() ; break; /*exp*/
case 13:
a = b * b * b; Right_output() ; break; /*X^3*/
case 14:
a = b * b; Right_output() ; break; /*X^2*/
case 15:
if( b <= 0 )
{
a = 0 ;
b = 0 ;
method = 0 ;
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "Logarithm must be positive !", -1);
}
else
{
a = log( b ); Right_output(); /*log*/
} break;
case 16:
if( b <= 0 )
{
a = 0;
b = 0;
method = 0;
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "Logarithm must be positive !", -1);
}
else
{
a = log10( b ); Right_output(); /*ln*/
} break;
case 17:
if( b < 0 )
{
a = 0;
b = 0;
method = 0;
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "Function input is invalid,must be>=0 !", -1);
}
else
{
a = fun((int)(b)); Right_output(); /*n!*/
} break;
case 18:
if( b == 0 )
{
a = 0 ;
b = 0 ;
method = 0;
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "Divisor can't for 0 !", -1);
}
else
{
a = 1 / b; Right_output(); /*1/X*/
} break;
case 19:
a = ~((int )b); Right_output(); break; /*not 取反*/
case 20:
a = floor(b) ; Right_output(); break; /*int取整floor返回小于或等于指定表达式的最大整数*/
default: break;
}
}
/**************************************************************************************************************/
/*加法运算*/
void Add(GtkWidget *widget , gpointer data)
{
method = 0;
Binary_Operator();
}
/*减法运算*/
void Sub(GtkWidget *widget , gpointer data)
{
method = 1;
Binary_Operator();
}
/*乘法运算*/
void Mul(GtkWidget *widget , gpointer data)
{
method = 2;
Binary_Operator();
}
/*除法运算*/
void Division(GtkWidget *widget , gpointer data)
{
method = 3;
Binary_Operator();
}
/*exp 幂运算*/
void Mathpowxy(GtkWidget *widget , gpointer data)
{
method = 4;
Binary_Operator();
}
/*and 逻辑与*/
void And(GtkWidget *widget , gpointer data)
{
method = 5;
Binary_Operator();
}
/*or 逻辑或*/
void Or(GtkWidget *widget , gpointer data)
{
method = 6;
Binary_Operator();
}
/*xor逻辑异或 */
void Xor(GtkWidget *widget , gpointer data)
{
method = 7;
Binary_Operator();
}
/*Mod 模运算(取余)*/
void Mod(GtkWidget *widget , gpointer data)
{
method = 8;
Binary_Operator();
}
/**************************************************************************************************************/
/*sin*/
void Sin(GtkWidget *widget , gpointer data)
{
method = 9;
output();
}
/*cos*/
void Cos(GtkWidget *widget , gpointer data)
{
method = 10;
output();
}
/*tan*/
void Tan(GtkWidget *widget , gpointer data)
{
method = 11;
output();
}
/*exp*/
void Exp(GtkWidget *widget , gpointer data)
{
method = 12;
output();
}
/*X^3 立方*/
void Cube(GtkWidget *widget , gpointer data)
{
method = 13;
output();
}
/*X^2 平方*/
void Square(GtkWidget *widget , gpointer data)
{
method = 14;
output();
}
/*log_e*/
void Log_e(GtkWidget *widget , gpointer data)
{
method = 15;
output();
}
/*Log_10*/
void Log_10(GtkWidget *widget , gpointer data)
{
method = 16;
output();
}
/*N!*/
void Factorial(GtkWidget *widget , gpointer data)
{
method = 17;
output();
}
/*1/X*/
void Inverse(GtkWidget *widget , gpointer data)
{
method = 18;
output();
}
/*not逻辑非*/
void Not(GtkWidget *widget , gpointer data)
{
method = 19;
output();
}
/*int 取整*/
void Floor(GtkWidget *widget , gpointer data)
{
method = 20;
output();
}
/**************************************************************************************************************/
/*.小数点*/
void dot(GtkWidget *widget , gpointer data)
{
if( hasdot == 0 )
{
const gchar *entry_text = gtk_entry_buffer_get_text(GTK_ENTRY_BUFFER(buffer1)); /*从显示器提取现有的文本*/
gint pos = strlen(entry_text); /*计算现有的文本字符个数*/
gtk_entry_buffer_insert_text (GTK_ENTRY_BUFFER(buffer1), pos, gtk_button_get_label(GTK_BUTTON(widget)), -1);
/*大概意思是叠加后面键入的内容gtk_button_get_label(GTK_BUTTON(widget)，与之前键入的内容合在一起，-1表示不限制加入内容的长度，&pos是指在现有的文本的第pos个字符的后面加入 */
hasdot = 1; /*表示有一个小数点*/
}
}
/*正负选择+/-*/
void Sign(GtkWidget *widget , gpointer data)
{
char num[20];
float c;
strcpy(num , gtk_entry_buffer_get_text(GTK_ENTRY_BUFFER(buffer1))); /*取得文本框的内容*/
c = atof(num); /*字符型转换成浮点型*/
c = -c;
gcvt(c , 32 , num); /*浮点型转换成字符型*/
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), num, -1); /*显示结果*/
}
/*清除函数CR*/
void clear(GtkWidget *widget , gpointer data)
{
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "", -1);
hasdot = 0;
a = 0;
b = 0;
method = 0;
}
/*输入函数*/
void input(GtkWidget *widget , gpointer data)
{
const gchar *entry_text = gtk_entry_buffer_get_text(GTK_ENTRY_BUFFER(buffer1));
gint pos = strlen(entry_text);
gtk_entry_buffer_insert_text (GTK_ENTRY_BUFFER(buffer1), pos, gtk_button_get_label(GTK_BUTTON(widget)), -1);
}
/*pi*/
void input_pi(GtkWidget *widget , gpointer data)
{
gtk_entry_buffer_set_text(GTK_ENTRY_BUFFER(buffer1), "3.1415926535897932384626433832795", -1);
}
/* 程序主体 */
static void
activate (GtkApplication *app, gpointer user_data)
{
a = 0;
b = 0;
hasdot = 0;
method = 0;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *label1;
GtkWidget *grid1;
GtkWidget *button1;
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;
window = gtk_application_window_new(app); /*创建一个窗口*/
gtk_window_set_title(GTK_WINDOW(window) , "My Calculator"); /*为窗口添加标题*/
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0); /*创建垂直框*/
gtk_window_set_child (GTK_WINDOW(window), vbox); /*把垂直框添加到窗口中*/
gtk_widget_show(vbox); /*显示垂直框*/
entry1 = gtk_entry_new(); /*创建一个文本框*/
buffer1 = gtk_entry_get_buffer(GTK_ENTRY (entry1));
gtk_box_append (GTK_BOX(vbox) , entry1);/*把文本框添加到垂直框中*/
gtk_widget_show(entry1); /*显示文本框*/
label1 = gtk_label_new(" 10 calculate "); /*创建一个标签*/
gtk_box_append (GTK_BOX(vbox) , label1);/*把标签添加到垂直框中*/
gtk_widget_show(label1); /*显示垂直框*/
grid1 = gtk_grid_new(); /*创建一个表格*/
gtk_box_append (GTK_BOX(vbox) , grid1);/*表格添加到垂直框中*/
gtk_widget_show(grid1); /*显示表格*/
/**************************************************************************************************************/
//button1 = gtk_button_new_with_mnemonic("Pi");
button1 = gtk_button_new_with_label("Pi"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button1 , 0 , 0, 1 , 1 );
gtk_widget_set_size_request(button1 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button1); /*显示按钮*/
//button2 = gtk_button_new_with_mnemonic("Sin");
button2 = gtk_button_new_with_label("Sin"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button2 , 0 , 1 , 1 , 1 );
gtk_widget_set_size_request(button2 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button2); /*显示按钮*/
//button3 = gtk_button_new_with_mnemonic("Cos");
button3 = gtk_button_new_with_label("Cos"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button3 , 0 , 2 , 1 , 1 );
gtk_widget_set_size_request(button3 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button3); /*显示按钮*/
//button4 = gtk_button_new_with_mnemonic("Tan");
button4 = gtk_button_new_with_label("Tan"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button4 , 0 , 3 , 1 , 1 );
gtk_widget_set_size_request(button4 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button4); /*显示按钮*/
/**************************************************************************************************************/
//button5 = gtk_button_new_with_mnemonic("Exp");
button5 = gtk_button_new_with_label("Exp"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button5 , 1 , 0 , 1 , 1 );
gtk_widget_set_size_request(button5 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button5); /*显示按钮*/
//button6 = gtk_button_new_with_mnemonic("X^Y");
button6 = gtk_button_new_with_label("X^Y"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button6 , 1 , 1 , 1 , 1 );
gtk_widget_set_size_request(button6 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button6); /*显示按钮*/
//button7 = gtk_button_new_with_mnemonic("X^3");
button7 = gtk_button_new_with_label("X^3"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button7 , 1 , 2 , 1 , 1 );
gtk_widget_set_size_request(button7 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button7); /*显示按钮*/
//button8 = gtk_button_new_with_mnemonic("X^2");
button8 = gtk_button_new_with_label("X^2"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button8 , 1 , 3 , 1 , 1 );
gtk_widget_set_size_request(button8 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button8); /*显示按钮*/
/**************************************************************************************************************/
//button9 = gtk_button_new_with_mnemonic("Ln");
button9 = gtk_button_new_with_label("Ln"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button9 , 2 , 0 , 1 , 1 );
gtk_widget_set_size_request(button9 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button9); /*显示按钮*/
//button10 = gtk_button_new_with_mnemonic("Log");
button10 = gtk_button_new_with_label("Log"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button10 , 2 , 1 , 1 , 1 );
gtk_widget_set_size_request(button10 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button10); /*显示按钮*/
//button11 = gtk_button_new_with_mnemonic("N!");
button11 = gtk_button_new_with_label("N!"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button11 , 2 , 2 , 1 , 1 );
gtk_widget_set_size_request(button11 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button11); /*显示按钮*/
//button12 = gtk_button_new_with_mnemonic("1/X");
button12 = gtk_button_new_with_label("1/X"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button12 , 2 , 3 , 1 , 1 );
gtk_widget_set_size_request(button12 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button12); /*显示按钮*/
/**************************************************************************************************************/
//button13 = gtk_button_new_with_mnemonic("7");
button13 = gtk_button_new_with_label("7"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button13 , 3 , 0 , 1 , 1 );
gtk_widget_set_size_request(button13 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button13); /*显示按钮*/
//button14 = gtk_button_new_with_mnemonic("4");
button14 = gtk_button_new_with_label("4"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button14 , 3 , 1 , 1 , 1 );
gtk_widget_set_size_request(button14 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button14); /*显示按钮*/
//button15 = gtk_button_new_with_mnemonic("1");
button15 = gtk_button_new_with_label("1"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button15 , 3 , 2 , 1 , 1 );
gtk_widget_set_size_request(button15 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button15); /*显示按钮*/
//button16 = gtk_button_new_with_mnemonic("0");
button16 = gtk_button_new_with_label("0"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button16 , 3 , 3 , 1 , 1 );
gtk_widget_set_size_request(button16 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button16); /*显示按钮*/
/**************************************************************************************************************/
//button17 = gtk_button_new_with_mnemonic("8");
button17 = gtk_button_new_with_label("8"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button17 , 4 , 0 , 1 , 1 );
gtk_widget_set_size_request(button17 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button17); /*显示按钮*/
//button18 = gtk_button_new_with_mnemonic("5");
button18 = gtk_button_new_with_label("5"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button18 , 4 , 1 , 1 , 1 );
gtk_widget_set_size_request(button18 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button18); /*显示按钮*/
//button19 = gtk_button_new_with_mnemonic("2");
button19 = gtk_button_new_with_label("2"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button19 , 4 , 2 , 1 , 1 );
gtk_widget_set_size_request(button19 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button19); /*显示按钮*/
//button20 = gtk_button_new_with_mnemonic("+/-");
button20 = gtk_button_new_with_label("+/-"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button20 , 4 , 3 , 1 , 1 );
gtk_widget_set_size_request(button20 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button20); /*显示按钮*/
/**************************************************************************************************************/
//button21 = gtk_button_new_with_mnemonic("9");
button21 = gtk_button_new_with_label("9"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button21 , 5 , 0 , 1 , 1 );
gtk_widget_set_size_request(button21 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button21); /*显示按钮*/
//button22 = gtk_button_new_with_mnemonic("6");
button22 = gtk_button_new_with_label("6"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button22 , 5 , 1 , 1 , 1 );
gtk_widget_set_size_request(button22 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button22); /*显示按钮*/
//button23 = gtk_button_new_with_mnemonic("3");
button23 = gtk_button_new_with_label("3"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button23 , 5 , 2 , 1 , 1 );
gtk_widget_set_size_request(button23 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button23); /*显示按钮*/
//button24 = gtk_button_new_with_mnemonic(".");
button24 = gtk_button_new_with_label("."); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button24 , 5 , 3 , 1 , 1 );
gtk_widget_set_size_request(button24 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button24); /*显示按钮*/
/**************************************************************************************************************/
//button25 = gtk_button_new_with_mnemonic("/");
button25 = gtk_button_new_with_label("/"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button25 , 6 , 0 , 1 , 1 );
gtk_widget_set_size_request(button25 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button25); /*显示按钮*/
//button26 = gtk_button_new_with_mnemonic("*");
button26 = gtk_button_new_with_label("*"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button26 , 6 , 1 , 1 , 1 );
gtk_widget_set_size_request(button26 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button26); /*显示按钮*/
//button27 = gtk_button_new_with_mnemonic("-");
button27 = gtk_button_new_with_label("-"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button27 , 6 , 2 , 1 , 1 );
gtk_widget_set_size_request(button27 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button27); /*显示按钮*/
//button28 = gtk_button_new_with_mnemonic("+");
button28 = gtk_button_new_with_label("+"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button28 , 6 , 3 , 1 , 1 );
gtk_widget_set_size_request(button28 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button28); /*显示按钮*/
/**************************************************************************************************************/
//button29 = gtk_button_new_with_mnemonic("=");
button29 = gtk_button_new_with_label("="); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button29 , 7 , 0 , 1 , 1 );
gtk_widget_set_size_request(button29 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button29); /*显示按钮*/
//button30 = gtk_button_new_with_mnemonic("And");
button30 = gtk_button_new_with_label("And"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button30 , 7 , 1 , 1 , 1 );
gtk_widget_set_size_request(button30 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button30); /*显示按钮*/
//button31 = gtk_button_new_with_mnemonic("Or");
button31 = gtk_button_new_with_label("Or"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button31 , 7 , 2 , 1 , 1 );
gtk_widget_set_size_request(button31 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button31); /*显示按钮*/
//button32 = gtk_button_new_with_mnemonic("Mod");
button32 = gtk_button_new_with_label("Mod"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button32 , 7 , 3 , 1 , 1 );
gtk_widget_set_size_request(button32 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button32); /*显示按钮*/
/**************************************************************************************************************/
//button33 = gtk_button_new_with_mnemonic("CR");
button33 = gtk_button_new_with_label("CR"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button33 , 8 , 0 , 1 , 1 );
gtk_widget_set_size_request(button33 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button33); /*显示按钮*/
//button34 = gtk_button_new_with_mnemonic("Not");
button34 = gtk_button_new_with_label("Not"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button34 , 8 , 1 , 1 , 1 );
gtk_widget_set_size_request(button34 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button34); /*显示按钮*/
//button35 = gtk_button_new_with_mnemonic("Xor");
button35 = gtk_button_new_with_label("Xor"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button35 , 8 , 2 , 1 , 1 );
gtk_widget_set_size_request(button35 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button35); /*显示按钮*/
//button36 = gtk_button_new_with_mnemonic("Int");
button36 = gtk_button_new_with_label("Int"); /*创建按钮*/
gtk_grid_attach(GTK_GRID(grid1) , button36 , 8 , 3 , 1 , 1 );
gtk_widget_set_size_request(button36 , 70 , 35); /*设置按钮大小*/
gtk_widget_show(button36); /*显示按钮*/
/*下面的按钮实现数字的输入*/
g_signal_connect( button1 , "clicked" , G_CALLBACK(input_pi) , NULL);
g_signal_connect( button13 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button14 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button15 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button16 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button17 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button18 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button19 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button21 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button22 , "clicked" , G_CALLBACK(input) , NULL);
g_signal_connect( button23 , "clicked" , G_CALLBACK(input) , NULL);
/*实现小数点的输入*/
g_signal_connect( button24 , "clicked" , G_CALLBACK(dot) , NULL);
/*实现正负号的输入*/
g_signal_connect( button20 , "clicked" , G_CALLBACK(Sign) , NULL);
/*实现各种运算的输入*/
g_signal_connect( button2 , "clicked" , G_CALLBACK(Sin), NULL);
g_signal_connect( button3 , "clicked" , G_CALLBACK(Cos) , NULL);
g_signal_connect( button4 , "clicked" , G_CALLBACK(Tan) , NULL);
g_signal_connect( button5 , "clicked" , G_CALLBACK(Exp) , NULL);
g_signal_connect( button6 , "clicked" , G_CALLBACK(Mathpowxy) , NULL);
g_signal_connect( button7 , "clicked" , G_CALLBACK(Cube) , NULL);
g_signal_connect( button8 , "clicked" , G_CALLBACK(Square) , NULL);
g_signal_connect( button9 , "clicked" , G_CALLBACK(Log_e) , NULL);
g_signal_connect( button10 , "clicked" , G_CALLBACK(Log_10) , NULL);
g_signal_connect( button11 , "clicked" , G_CALLBACK(Factorial) , NULL);
g_signal_connect( button12 , "clicked" , G_CALLBACK(Inverse) , NULL);
g_signal_connect( button25 , "clicked" , G_CALLBACK(Division) , NULL);
g_signal_connect( button26 , "clicked" , G_CALLBACK(Mul) , NULL);
g_signal_connect( button27 , "clicked" , G_CALLBACK(Sub) , NULL);
g_signal_connect( button28 , "clicked" , G_CALLBACK(Add) , NULL);
g_signal_connect( button30 , "clicked" , G_CALLBACK(And) , NULL);
g_signal_connect( button31 , "clicked" , G_CALLBACK(Or) , NULL);
g_signal_connect( button32 , "clicked" , G_CALLBACK(Mod) , NULL);
g_signal_connect( button34 , "clicked" , G_CALLBACK(Not) , NULL);
g_signal_connect( button35 , "clicked" , G_CALLBACK(Xor) , NULL);
g_signal_connect( button36 , "clicked" , G_CALLBACK(Floor) , NULL);
/*实现复位功能*/
g_signal_connect( button33 , "clicked" , G_CALLBACK(clear) , NULL);
/*实现结果输出*/
g_signal_connect( button29 , "clicked" , G_CALLBACK(output) , NULL);
gtk_widget_show(window);
}
int
main (int argc, char **argv)
{
GtkApplication *app;
/* 声明变量app为GtkApplication类型 */
int status;
/* 声明变量status为整数十制进数字类型 */
app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
/* 创建程序app使用名称为org.gtk.example，当glib版本小于2.74时用G_APPLICATION_FLAGS_NONE，当glib版本大于2.74时用G_APPLICATION_DEFAULT_FLAGS */
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
/* 为程序app加上动作，当收到activate信号，就启动activate事件，跳转运行activate函数体 */
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
效果图如下
![「网络编程」传输层协议_ TCP协议学习_及原理深入理解（二 - 完结）[万字详解]](https://img-blog.csdnimg.cn/8fa0acb456ab4064ada5f08e07a3a012.png)
