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该演示主要操作一个字符串，分解成单个字符，同时获取字符串长度，部分字符串等
作者：AlimysoYang
- #include <gtk/gtk.h>
- GtkWidget *wnd;
- GtkWidget *vbox,*hbox;
- GtkWidget *entry,*btntest,*btnquit;
- void ui_init()
- {
- wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
- gtk_window_set_title(GTK_WINDOW(wnd),"Test GString");
- gtk_window_set_position(GTK_WINDOW(wnd),GTK_WIN_POS_CENTER);
-
- vbox = gtk_vbox_new(TRUE,2);
- hbox = gtk_hbox_new(TRUE,2);
- entry = gtk_entry_new();
- btntest = gtk_button_new_with_label("测试");
- btnquit = gtk_button_new_with_label("退出");
- gtk_box_pack_start_defaults(GTK_BOX(hbox),btntest);
- gtk_box_pack_start_defaults(GTK_BOX(hbox),btnquit);
-
- gtk_box_pack_start_defaults(GTK_BOX(vbox),entry);
- gtk_box_pack_start_defaults(GTK_BOX(vbox),hbox);
-
- gtk_container_add(GTK_CONTAINER(wnd),vbox);
- gtk_container_set_border_width(GTK_CONTAINER(wnd),5);
- gtk_widget_show_all(wnd);
- }
- void FormDestroy(GtkWidget *widget,GdkEvent *event,gpointer data)
- {
- gtk_main_quit();
- }
- void btntest_clicked(GtkButton *button,gpointer data)
- {
- GString *teststr;
- const gchar *textc = gtk_entry_get_text(GTK_ENTRY(entry));
- teststr = g_string_new(textc);
-
- int len = teststr->len;
- g_printf("GString Len:%d\n",len);
- g_printf("GString Allocated_Len:%d\n",teststr->allocated_len);
- g_printf("GString Value:%s\n",teststr->str);
- int i;
- for (i = 0;i<len;i++)
- g_printf("GString Value[%d]:%c\n",i,teststr->str);
-
- GString *partstr = g_string_sized_new(len - 2);
- for (i = 1;i<=len - 2;i++)
- g_string_append_c(partstr,teststr->str);
- g_printf("PartStr GString Len And PartStr:%d %s\n",partstr->len,partstr->str);
- g_string_free(teststr,TRUE);
- }
- int main(int argc,char *argv[])
- {
- gtk_init(&argc,&argv);
-
- ui_init();
-
- g_signal_connect(G_OBJECT(wnd),"destroy",G_CALLBACK(FormDestroy),NULL);
- g_signal_connect_swapped(G_OBJECT(btnquit),"clicked",G_CALLBACK(FormDestroy),NULL);
- g_signal_connect(G_OBJECT(btntest),"clicked",G_CALLBACK(btntest_clicked),NULL);
- gtk_main();
- return 0;
- }
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发表于 2010-8-30 17:30:17
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发表于 2010-8-30 20:09:47
发表于 2011-9-11 00:26:45
