分栏显示

时间：2010-04-15 来源：cj_gameboy

编译：

cc ss.c -o ss `pkg-config --cflags --libs gtk+-2.0`

源码：

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

/* 创建一个"信息"列表 */
GtkWidget *create_list( void )
{

    GtkWidget *scrolled_window;
    GtkWidget *tree_view;
    GtkListStore *model;
    GtkTreeIter iter;
    GtkCellRenderer *cell;
    GtkTreeViewColumn *column;

    int i;

    /* 创建一个新的滚动窗口(scrolled window)，只有需要时，滚动条才出现 */
    scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
                 GTK_POLICY_AUTOMATIC,
                 GTK_POLICY_AUTOMATIC);

    model = gtk_list_store_new (1, G_TYPE_STRING);
    tree_view = gtk_tree_view_new ();
    gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_window),
                                           tree_view);
    gtk_tree_view_set_model (GTK_TREE_VIEW (tree_view), GTK_TREE_MODEL (model));
    gtk_widget_show (tree_view);

    /* 在窗口中添加一些消息 */
    for (i = 0; i < 10; i++) {
        gchar *msg = g_strdup_printf ("Message #%d", i);
        gtk_list_store_append (GTK_LIST_STORE (model), &iter);
        gtk_list_store_set (GTK_LIST_STORE (model),
     &iter,
                            0, msg,
     -1);
    g_free (msg);
    }

    cell = gtk_cell_renderer_text_new ();

    column = gtk_tree_view_column_new_with_attributes ("Messages",
                                                       cell,
                                                       "text", 0,
                                                       NULL);

    gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view),
              GTK_TREE_VIEW_COLUMN (column));

    return scrolled_window;
}

/* 向文本构件中添加一些文本 - 这是当窗口被实例化(realized)时调用的回调函数。
* 我们也可以用 gtk_widget_realize 强行将窗口实例化，但这必须在它的层次关系
* 确定后(be part of a hierarchy)才行。 */
// 译者注：构件的层次关系就是其parent被确定。将一个子构件加到一个容器中

// 时，其parent就是这个容器。层次关系被确定要求，其parent的parent...也

// 确定了。顶级窗口可以不要parent。只是我的经验理解。

void insert_text (GtkTextBuffer *buffer)
{
   GtkTextIter iter;

   gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);

   gtk_text_buffer_insert (buffer, &iter,
    "From: [email protected]\n"
    "To: [email protected]\n"
    "Subject: Made it!\n"
    "\n"
    "We just got in this morning. The weather has been\n"
    "great - clear but cold, and there are lots of fun sights.\n"
    "Sojourner says hi. See you soon.\n"
    " -Path\n", -1);
}

/* 创建一个滚动文本区域，用于显示一个"信息" */
GtkWidget *create_text( void )
{
   GtkWidget *scrolled_window;
   GtkWidget *view;
   GtkTextBuffer *buffer;

   view = gtk_text_view_new ();
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));

   scrolled_window = gtk_scrolled_window_new (NULL, NULL);
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
              GTK_POLICY_AUTOMATIC,
                 GTK_POLICY_AUTOMATIC);

   gtk_container_add (GTK_CONTAINER (scrolled_window), view);
   insert_text (buffer);

   gtk_widget_show_all (scrolled_window);

   return scrolled_window;
}

int main( int argc,
          char *argv[] )
{
    GtkWidget *window;
    GtkWidget *vpaned;
    GtkWidget *list;
    GtkWidget *text;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), "Paned Windows");
    g_signal_connect (G_OBJECT (window), "destroy",
     G_CALLBACK (gtk_main_quit), NULL);
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);
    gtk_widget_set_size_request (GTK_WIDGET (window), 450, 400);

    /* 在顶级窗口上添加一个垂直分栏窗口构件 */

    vpaned = gtk_vpaned_new ();
    gtk_container_add (GTK_CONTAINER (window), vpaned);
    gtk_widget_show (vpaned);

    /* 在分栏窗口的两部分各添加一些构件 */

    list = create_list ();
    gtk_paned_add1 (GTK_PANED (vpaned), list);
    gtk_widget_show (list);

    text = create_text ();
    gtk_paned_add2 (GTK_PANED (vpaned), text);
    gtk_widget_show (text);
    gtk_widget_show (window);

    gtk_main ();

    return 0;
}