gtk_menu_popup（）刪除treeview選擇

我試圖顯示一個上下文菜單，當一個GtkTreeView項目收到右擊。當我右鍵單擊該項目菜單顯示，但在我的GtkTreeView中的選擇消失，並且我希望顯示GtkMenu時我右鍵單擊選中的項目。gtk_menu_popup（）刪除treeview選擇

菜單是GtkBuilt：

... 
<object class="GtkMenu" id="menu_nf"> 
<property name="visible">True</property> 
<property name="can_focus">False</property> 
<child> 
    <object class="GtkMenuItem" id="abrir_nfe"> 
    <property name="visible">True</property> 
    <property name="can_focus">False</property> 
    <property name="label" translatable="yes">Abrir</property> 
    <property name="use_underline">True</property> 
    </object> 
</child> 
<child> 
    <object class="GtkMenuItem" id="emitir_nfe"> 
    <property name="visible">True</property> 
    <property name="can_focus">False</property> 
    <property name="label" translatable="yes">Emitir</property> 
    <property name="use_underline">True</property> 
    </object> 
</child> 
</object> 
...

而這些是我使用的顯示菜單中的相關功能：

static gint popup_menu_nfe(GtkTreeView *t, GdkEventButton *e, gpointer *win){ 
    gtk_menu_popup((LIVRENFE_WINDOW(win))->menu_nf, NULL, 
     NULL, NULL, NULL, e->button, e->time); 
} 

static gint nfe_context_menu_show(GtkTreeView *t, GdkEventButton *e, 
     gpointer win){ 
    if(e->type == GDK_BUTTON_PRESS){ 
     if(e->button == GDK_BUTTON_SECONDARY){ 
      GtkTreeSelection *s; 
      GtkTreePath *p; 
      s = gtk_tree_view_get_selection(t); 
      if(gtk_tree_view_get_path_at_pos(t, e->x, e->y, &p, 
        NULL, NULL, NULL)){ 
       gtk_tree_selection_unselect_all(s); 
       gtk_tree_selection_select_path(s, p); 
       gtk_tree_path_free(p); 
      } 
      popup_menu_nfe(t, e, win); 
      return TRUE; 
     } 
    } 
    return FALSE; 
} 

static gint nfe_on_popup(GtkTreeView *t, gpointer win){ 
    popup_menu_nfe(t, NULL, win); 
    return TRUE; 
} 

static void livrenfe_window_init(LivrenfeWindow *win){ 
    gtk_widget_init_template(GTK_WIDGET(win)); 
    ... 
    g_signal_connect((LIVRENFE_WINDOW(win))->treeview, "button-press-event", 
     G_CALLBACK(nfe_context_menu_show), win); 
    g_signal_connect((LIVRENFE_WINDOW(win))->treeview, "popup-menu", 
     G_CALLBACK(nfe_on_popup), win); 
    ... 
}

全部代碼是在這裏：https://github.com/pablogallardo/livrenfe/blob/master/src/lnfe_window.c

我在這裏跟着例子https://en.wikibooks.org/wiki/GTK%2B_By_Example/Tree_View/Events#Context_Menus_on_Right_Click

如果我將gtk_menu_popup()呼叫註釋掉，當我右鍵單擊它們時，項目會被選中，但當我撥打gtk_menu_popup()時，似乎我做錯了什麼。我也試着在之前撥打gtk_menu_popup()我做了GtkTreeSelection部分，它不起作用。

有人能幫我嗎？

謝謝！

來源

2016-12-31 pablogallardo

問題不在gtk_menu_popup（）中。這是我用來填充樹視圖的信號。

g_signal_connect(win, "visibility-notify-event", G_CALLBACK(list_nfe), 
     NULL);

看來，當菜單彈出的信號再次發出，刷新樹視圖的功能list_nfe()被調用。

來源

2017-01-02 20:48:31 pablogallardo

gtk_menu_popup（）刪除treeview選擇

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