To show how I expect this kind of construction to work, makes it easier to find the code the next time I need it somewhere.
		
			
				
	
	
		
			89 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			89 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#include <gtk/gtk.h>
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static void
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expander_cb (GtkExpander *expander, GParamSpec *pspec, GtkWindow *dialog)
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{
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  gtk_window_set_resizable (dialog, gtk_expander_get_expanded (expander));
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}
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static void
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do_not_expand (GtkWidget *child, gpointer data)
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{
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  gtk_container_child_set (GTK_CONTAINER (gtk_widget_get_parent (child)), child,
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                           "expand", FALSE, "fill", FALSE, NULL);
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}
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static void
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response_cb (GtkDialog *dialog, gint response_id)
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{
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  gtk_main_quit ();
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}
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int
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main (int argc, char *argv[])
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{
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  GtkWidget *dialog;
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  GtkWidget *area;
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  GtkWidget *box;
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  GtkWidget *expander;
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  GtkWidget *sw;
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  GtkWidget *tv;
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  GtkTextBuffer *buffer;
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  gtk_init (&argc, &argv);
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  dialog = gtk_message_dialog_new_with_markup (NULL,
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                       0,
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                       GTK_MESSAGE_ERROR,
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                       GTK_BUTTONS_CLOSE,
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                       "<big><b>%s</b></big>",
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                       "Something went wrong");
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  gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
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                                            "Here are some more details "
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                                            "but not the full story.");
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  area = gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (dialog));
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  /* make the hbox expand */
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  box = gtk_widget_get_parent (area);
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  gtk_container_child_set (GTK_CONTAINER (gtk_widget_get_parent (box)), box,
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                           "expand", TRUE, "fill", TRUE, NULL);
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  /* make the labels not expand */
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  gtk_container_foreach (GTK_CONTAINER (area), do_not_expand, NULL);
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  expander = gtk_expander_new ("Details:");
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  sw = gtk_scrolled_window_new (NULL, NULL);
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  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_IN);
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  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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                                  GTK_POLICY_NEVER,
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                                  GTK_POLICY_AUTOMATIC);
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  tv = gtk_text_view_new ();
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  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (tv));
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  gtk_text_view_set_editable (GTK_TEXT_VIEW (tv), FALSE);
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  gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (tv), GTK_WRAP_WORD);
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  gtk_text_buffer_set_text (GTK_TEXT_BUFFER (buffer),
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                            "Finally, the full story with all details. "
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                            "And all the inside information, including "
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                            "error codes, etc etc. Pages of information, "
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                            "you might have to scroll down to read it all, "
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                            "or even resize the window - it works !\n"
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                            "A second paragraph will contain even more "
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                            "innuendo, just to make you scroll down or "
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                            "resize the window. Do it already !", -1);
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  gtk_container_add (GTK_CONTAINER (sw), tv);
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  gtk_container_add (GTK_CONTAINER (expander), sw);
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  gtk_box_pack_end (GTK_BOX (area), expander, TRUE, TRUE, 0);
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  gtk_widget_show_all (expander);
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  g_signal_connect (expander, "notify::expanded",
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                    G_CALLBACK (expander_cb), dialog);
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  g_signal_connect (dialog, "response", G_CALLBACK (response_cb), NULL);
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  gtk_window_present (GTK_WINDOW (dialog));
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  gtk_main ();
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  return 0;
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}
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