GTK＋写的MD5计算工具

Tom · 发表于 2010-9-17 10:00:48

利用GLib库的GChecksum，对文件进行MD5计算。

所用知识：
GChecksum的简单使用，FILE读取文件，stat获取文件大小，简单GTK+布局，信号绑定。

界面如下：

代码如下:

/*
Creator by Tom
E-mail:Tom@awaysoft.com
gtk.awaysoft.com
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include <sys/stat.h>
GtkWidget *choose_button = NULL;
static void calc_Md5 (GtkWidget *wid, GtkWidget *win)
{
GtkWidget *dialog = NULL;
gchar *filename = NULL;
const gchar *result = NULL;
gchar mess[33];
filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(choose_button));
if (filename){
GChecksum * checksum;
guchar * buffer = NULL;
FILE *fp = NULL;
if ((fp = fopen(filename, "rb"))!=NULL){
/* get file size */
struct stat filesize;
stat(filename, &filesize);
int file_no = filesize.st_size;
if (file_no != -1){
/* read buffer */
buffer = (guchar *)g_malloc(sizeof(guchar)*file_no);
fread(buffer, file_no, 1, fp);
/* checksum */
checksum = g_checksum_new(G_CHECKSUM_MD5);
g_checksum_update(checksum, (const guchar *)buffer, file_no);
result = g_checksum_get_string(checksum);
g_free(buffer);
}else{
strcpy ((gchar *)result, "文件打开失败！");
}
fclose(fp);
}else{
strcpy ((gchar *)result, "文件打开失败！");
}
strcpy(mess, result);
g_free((gchar *)result);
g_free(filename);
}else{
strcpy(mess, "请选择或者拖动一个文件！");
}
dialog = gtk_message_dialog_new (GTK_WINDOW (win), GTK_DIALOG_MODAL, GTK_MESSAGE_INFO, GTK_BUTTONS_CLOSE, mess);
gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_CENTER);
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
}
int main (int argc, char *argv[])
{
GtkWidget *button = NULL;
GtkWidget *win = NULL;
GtkWidget *vbox = NULL;
GtkWidget *hbox = NULL;
GtkWidget *label = NULL;
/* Initialize GTK+ */
g_log_set_handler ("Gtk", G_LOG_LEVEL_WARNING, (GLogFunc) gtk_false, NULL);
gtk_init (&argc, &argv);
g_log_set_handler ("Gtk", G_LOG_LEVEL_WARNING, g_log_default_handler, NULL);
/* Create the main window */
win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_container_set_border_width (GTK_CONTAINER (win), 8);
gtk_window_set_title (GTK_WINDOW (win), "MD5 计算");
gtk_window_set_position (GTK_WINDOW (win), GTK_WIN_POS_CENTER);
gtk_widget_realize (win);
gtk_widget_set_size_request(win, 200,100);
g_signal_connect (win, "destroy", gtk_main_quit, NULL);
/* Create a vertical box with buttons */
vbox = gtk_vbox_new (TRUE, 6);
gtk_container_add (GTK_CONTAINER (win), vbox);
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start(GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
label = gtk_label_new("文件：");
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
choose_button = gtk_file_chooser_button_new ("选择一个文件",
GTK_FILE_CHOOSER_ACTION_OPEN);
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (choose_button),
"$HOME");
gtk_box_pack_start (GTK_BOX (hbox), choose_button, TRUE, TRUE, 0);
hbox = gtk_hbox_new (TRUE, 6);
gtk_box_pack_start(GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
button = gtk_button_new_with_label("计算");
gtk_box_pack_start(GTK_BOX (hbox), button, TRUE, TRUE, 0);
g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK (calc_Md5), (gpointer) win);
button = gtk_button_new_from_stock (GTK_STOCK_CLOSE);
g_signal_connect (button, "clicked", gtk_main_quit, NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
/* Enter the main loop */
gtk_widget_show_all (win);
gtk_main ();
return 0;
}

复制代码

firebat · 发表于 2010-9-17 16:14:01

嘿，也可以直接调用md5sum……

Tom · 发表于 2010-9-17 18:44:41

嗯，不过，貌似那就要用管道了。。。。更麻烦啊。。。。

firebat · 发表于 2010-9-17 22:45:02

用exec*啊

Tom · 发表于 2010-9-18 02:43:10

exec 没用过，不过要获得返回值，也必须要管道吧？

pp245610587 · 发表于 2010-10-29 05:00:03

gtk的文件选择窗口不怎么好用啊

gtk-inkscape · 发表于 2010-10-30 07:05:06

收藏先。。。对小菜来说一个学习的阶梯。。。

Tom · 发表于 2010-11-1 05:56:25

引用第5楼pp245610587于2010-10-28 21:00发表的 :
gtk的文件选择窗口不怎么好用啊

呵呵，习惯了就好。。。

ekd123 · 发表于 2011-1-27 16:05:22

popen一个md5sum岂不是更简单？read出来返回值就可以……

hellosimple · 发表于 2011-2-15 22:58:07

很不错，学习了。

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GTK＋写的MD5计算工具

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