用GtkTreeView实现ListBox示例

用GtkTreeView实现ListBox示例

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文章出处：http://www.limodev.cn/blog
作者联系方式：李先静

前 段时间花了不少时间去研究GTK+的架构，但没有怎么关注具体控件的使用。大部控件都有示例代码，相信使用不会很难。今天要测试一下用 GtkTreeView实现ListBox，发现没有GtkTreeView的示例代码，GTK+的tutorial里也没有讲解。只好自己折腾，结果花 了两个小时才搞定，写段代码做个备忘吧。

GtkWidget* create_window1 (void)
{
 
  GtkWidget *window1;
  GtkWidget *scrolledwindow1;
  GtkWidget *treeview1;
  GtkTreeViewColumn* column;
  GtkTreeIter iter;
  GtkListStore* store;
  GtkCellRenderer* cell;
 
  char text[32] = {0};
  int i = 0 ;
  int n = 100;
 
  window1 = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window1), _("window1"));
 
  scrolledwindow1 = gtk_scrolled_window_new (NULL, NULL);
  gtk_widget_show (scrolledwindow1);
  gtk_container_add (GTK_CONTAINER (window1), scrolledwindow1);
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolledwindow1), GTK_SHADOW_IN);
 
  treeview1 = gtk_tree_view_new ();
  column = gtk_tree_view_column_new();
  gtk_tree_view_append_column(GTK_TREE_VIEW(treeview1), column);
 
  cell = gtk_cell_renderer_text_new();
  gtk_tree_view_column_pack_start(column, cell, TRUE);
  gtk_tree_view_column_set_attributes(column, cell, "text", 0, NULL);
 
  column = gtk_tree_view_column_new();
  gtk_tree_view_append_column(GTK_TREE_VIEW(treeview1), column);
 
  store = gtk_list_store_new(1, G_TYPE_STRING);
  gtk_tree_view_set_model(treeview1, GTK_TREE_MODEL(store));
 
 
  for(i = 0; i < n; i ++)
  {
    sprintf(text, "text%d", i);
    gtk_list_store_append(store, &iter);
    gtk_list_store_set(store, &iter, 0, text, -1);
  }
 
  gtk_widget_show (treeview1);
  gtk_container_add (GTK_CONTAINER (scrolledwindow1), treeview1);
 
  /* Store pointers to all widgets, for use by lookup_widget(). */
 
  GLADE_HOOKUP_OBJECT_NO_REF (window1, window1, "window1");
  GLADE_HOOKUP_OBJECT (window1, scrolledwindow1, "scrolledwindow1");
  GLADE_HOOKUP_OBJECT (window1, treeview1, "treeview1");
 
  return window1;
}

得到选中项的内容：

void
on_button1_clicked                     (gpointer user_data, GtkButton       *button)
{
 
    GValue value                = {0};
    GtkTreeIter iter            = {0};
    GtkTreeStore* store         = NULL;
    GtkTreeSelection* selection = NULL;
    GtkTreeView* treeview       = NULL;
 
    treeview = (GtkTreeView*)lookup_widget(GTK_WIDGET(user_data), "treeview1");
    selection = gtk_tree_view_get_selection(treeview);
    gtk_tree_selection_get_selected(selection, (GtkTreeModel**)&store, &iter);
    gtk_tree_model_get_value(GTK_TREE_MODEL(store), &iter, 0, &value);
 
    g_debug("%s\n", g_value_get_string(&value));
 
    return ;
}