#include <stdlib.h>
#include <gtk/gtk.h>

/* 创建一个新的横向盒，它包含一个图像和一个标签，并返回这个盒。*/

GtkWidget *xpm_label_box( gchar     *xpm_filename,
                          gchar     *label_text )
{
    GtkWidget *box;
    GtkWidget *label;
    GtkWidget *image;

    /* 为图像和标签创建盒 */
    box = gtk_hbox_new (FALSE, 0);
    gtk_container_set_border_width (GTK_CONTAINER (box), 2);

    /* 创建一个图像 */
    image = gtk_image_new_from_file (xpm_filename);

    /* 为按钮创建一个标签 */
    label = gtk_label_new (label_text);

    /* 把图像和标签组装到盒子里 */
    gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 3);
    gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 3);

    gtk_widget_show (image);
    gtk_widget_show (label);

    return box;
}

/* 我们常见的回调函数 */
void callback( GtkWidget *widget,
               gpointer   data )
{
    g_print ("Hello again - %s was pressed\n", (char *) data);
}

int main( int   argc,
          char *argv[] )
{
    /* GtkWidget 是构件的存储类型 */
    GtkWidget *window;
    GtkWidget *button;
    GtkWidget *box;

    gtk_init (&argc, &argv);

    /* 创建一个新窗口 */
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

    gtk_window_set_title (GTK_WINDOW (window), "Pixmap'd Buttons!");

    /* 对所有的窗口做这一步是一个好主意。*/
    g_signal_connect (G_OBJECT (window), "destroy",
	              G_CALLBACK (gtk_main_quit), NULL);

    g_signal_connect (G_OBJECT (window), "delete_event",
	 	      G_CALLBACK (gtk_main_quit), NULL);

    /* 设置窗口边框的宽度。*/
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    /* 创建一个新的按钮 */
    button = gtk_button_new ();

    /* 连接按钮的 "clicked" 信号到我们的回调 */
    g_signal_connect (G_OBJECT (button), "clicked",
		      G_CALLBACK (callback), (gpointer) "cool button");

    /* 调用我们的创建盒的函数 */
    box = xpm_label_box ("info.xpm", "cool button");

    /* 组装和显示所有的构件 */
    gtk_widget_show (box);

    gtk_container_add (GTK_CONTAINER (button), box);

    gtk_widget_show (button);

    gtk_container_add (GTK_CONTAINER (window), button);

    gtk_widget_show (window);

    /* 停在这里，等待事件发生。 */
    gtk_main ();

    return 0;
}