c - GTK+ 程序中带有标签的文本框

Question

我是 GTK+ 编程的新手。我写了一个简单的 GTK+ 程序，我在窗口中显示一个标签和一个文本框，标签应该在文本框的左边，我应该能够指定水平长度文本框。到目前为止，下面是我的代码，程序运行良好，但我无法将标签对齐到文本框的左侧，也无法设置文本框的水平长度。

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

static void destroy(GtkWidget *widget,gpointer   data)
{
    gtk_main_quit ();
}

int main (int argc, char *argv[])
{
  GtkWidget *window,*table,*label,*entry;
  gtk_init(&argc, &argv);
  void initialize_window(GtkWidget *);

  //Create the main window
  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  initialize_window(window);
  gtk_widget_show(window);

   /* Create a 1x2 table */
   table = gtk_table_new (1, 2, TRUE);
   gtk_container_add (GTK_CONTAINER (window), table);
   gtk_widget_show (table);


  /* create a new label. */
  label = gtk_label_new ("Enter some text: ");
  gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
  gtk_table_attach_defaults (GTK_TABLE (table),label, 0, 1, 0, 1);
  gtk_widget_show (label);

  //create a text box
  entry = gtk_entry_new ();
  gtk_entry_set_max_length (GTK_ENTRY (entry),0);
  gtk_table_attach_defaults (GTK_TABLE (table),entry, 0, 1, 0, 1);
  gtk_widget_show (entry); 



  gtk_main ();
  return 0;
}



void initialize_window(GtkWidget *window)
{
  gtk_window_set_title(GTK_WINDOW(window),"My Window"); //Set window title
  gtk_window_set_default_size (GTK_WINDOW (window), 400, 200); //Set default size for the window
  g_signal_connect (window, "destroy",G_CALLBACK (destroy), NULL); //End application when close button clicked

}

我该如何解决这个问题？

请帮忙 谢谢。

Answer 1

你弄乱了表格位置，如果你不知道它的作用就不要设置 aligin，这可能有点误导。 这是工作代码(我想这就是你想要的):

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

static void destroy(GtkWidget *widget, gpointer data)
{
    gtk_main_quit ();
}



static void initialize_window(GtkWidget* window)
{
  gtk_window_set_title(GTK_WINDOW(window),"My Window"); //Set window title
  gtk_window_set_default_size (GTK_WINDOW (window), 400, 200); //Set default size for the window
  g_signal_connect (window, "destroy", G_CALLBACK (destroy), NULL); //End application when close button clicked

}

int main (int argc, char *argv[])
{
  GtkWidget *window,*table,*label,*entry;
  gtk_init(&argc, &argv);


  //Create the main window
  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  initialize_window(window);


   /* Create a 1x2 table */
   table = gtk_table_new (1, 2, TRUE);
   gtk_container_add (GTK_CONTAINER (window), table);


  /* create a new label. */
  label = gtk_label_new ("Enter some text:" );
  //gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
  gtk_table_set_homogeneous(GTK_TABLE (table), TRUE);
  gtk_table_attach_defaults (GTK_TABLE (table), label, 1, 2, 0, 1);


  //create a text box
  entry = gtk_entry_new ();
  gtk_entry_set_max_length (GTK_ENTRY (entry),0);
  gtk_table_attach_defaults (GTK_TABLE (table), entry, 0, 1, 0, 1);


    gtk_widget_show_all(window);

  gtk_main ();
  return 0;
}