bool wxGUIAppTraits::ShowAssertDialog(const wxString& msg)
{
#if wxDEBUG_LEVEL
// under GTK2 we prefer to use a dialog widget written using directly in
// GTK+ as use a dialog written using wxWidgets would need the wxWidgets
// idle processing to work correctly which might not be the case when
// assert happens
GtkWidget *dialog = gtk_assert_dialog_new();
gtk_assert_dialog_set_message(GTK_ASSERT_DIALOG(dialog), msg.mb_str());
#if wxUSE_STACKWALKER
// don't show more than maxLines or we could get a dialog too tall to be
// shown on screen: 20 should be ok everywhere as even with 15 pixel high
// characters it is still only 300 pixels...
static const int maxLines = 20;
// save current stack frame...
StackDump dump(GTK_ASSERT_DIALOG(dialog));
dump.SaveStack(maxLines);
// ...but process it only if the user needs it
gtk_assert_dialog_set_backtrace_callback(GTK_ASSERT_DIALOG(dialog),
(GtkAssertDialogStackFrameCallback)get_stackframe_callback,
&dump);
#endif // wxUSE_STACKWALKER
gint result = gtk_dialog_run(GTK_DIALOG (dialog));
bool returnCode = false;
switch (result)
{
case GTK_ASSERT_DIALOG_STOP:
wxTrap();
break;
case GTK_ASSERT_DIALOG_CONTINUE:
// nothing to do
break;
case GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING:
// no more asserts
returnCode = true;
break;
default:
wxFAIL_MSG( _T("unexpected return code from GtkAssertDialog") );
}
gtk_widget_destroy(dialog);
return returnCode;
#else // !wxDEBUG_LEVEL
// this function is never called in this case
wxUnusedVar(msg);
return false;
#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
}
bool wxGUIAppTraits::ShowAssertDialog(const wxString& msg)
{
#if wxDEBUG_LEVEL
// we can't show the dialog from another thread
if ( wxIsMainThread() )
{
// under GTK2 we prefer to use a dialog widget written using directly
// in GTK+ as use a dialog written using wxWidgets would need the
// wxWidgets idle processing to work correctly which might not be the
// case when assert happens
GtkWidget *dialog = gtk_assert_dialog_new();
gtk_assert_dialog_set_message(GTK_ASSERT_DIALOG(dialog), msg.mb_str());
#if wxUSE_STACKWALKER
// save the current stack ow...
StackDump dump(GTK_ASSERT_DIALOG(dialog));
dump.SaveStack(100); // showing more than 100 frames is not very useful
// ...but process it only if the user needs it
gtk_assert_dialog_set_backtrace_callback
(
GTK_ASSERT_DIALOG(dialog),
(GtkAssertDialogStackFrameCallback)get_stackframe_callback,
&dump
);
#endif // wxUSE_STACKWALKER
gint result = gtk_dialog_run(GTK_DIALOG (dialog));
bool returnCode = false;
switch (result)
{
case GTK_ASSERT_DIALOG_STOP:
wxTrap();
break;
case GTK_ASSERT_DIALOG_CONTINUE:
// nothing to do
break;
case GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING:
// no more asserts
returnCode = true;
break;
default:
wxFAIL_MSG( wxT("unexpected return code from GtkAssertDialog") );
}
gtk_widget_destroy(dialog);
return returnCode;
}
#endif // wxDEBUG_LEVEL
return wxAppTraitsBase::ShowAssertDialog(msg);
}
static void gtk_assert_dialog_init(GTypeInstance* instance, void*)
{
GtkAssertDialog* dlg = GTK_ASSERT_DIALOG(instance);
GtkWidget *continuebtn;
{
GtkWidget *vbox, *hbox, *image;
/* start the main vbox */
gtk_widget_push_composite_child ();
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 8);
gtk_container_set_border_width (GTK_CONTAINER(vbox), 8);
gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dlg))), vbox, true, true, 5);
/* add the icon+message hbox */
hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
/* icon */
image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_ERROR, GTK_ICON_SIZE_DIALOG);
gtk_box_pack_start (GTK_BOX(hbox), image, FALSE, FALSE, 12);
{
GtkWidget *vbox2, *info;
/* message */
vbox2 = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (hbox), vbox2, TRUE, TRUE, 0);
info = gtk_label_new ("An assertion failed!");
gtk_box_pack_start (GTK_BOX(vbox2), info, TRUE, TRUE, 8);
/* assert message */
dlg->message = gtk_label_new (NULL);
gtk_label_set_selectable (GTK_LABEL (dlg->message), TRUE);
gtk_label_set_line_wrap (GTK_LABEL (dlg->message), TRUE);
gtk_label_set_justify (GTK_LABEL (dlg->message), GTK_JUSTIFY_LEFT);
gtk_widget_set_size_request (GTK_WIDGET(dlg->message), 450, -1);
gtk_box_pack_end (GTK_BOX(vbox2), GTK_WIDGET(dlg->message), TRUE, TRUE, 8);
}
#if wxUSE_STACKWALKER
/* add the expander */
dlg->expander = gtk_expander_new_with_mnemonic ("Back_trace:");
gtk_box_pack_start (GTK_BOX(vbox), dlg->expander, TRUE, TRUE, 0);
g_signal_connect (dlg->expander, "activate",
G_CALLBACK(gtk_assert_dialog_expander_callback), dlg);
#endif // wxUSE_STACKWALKER
}
#if wxUSE_STACKWALKER
{
GtkWidget *hbox, *vbox, *button, *sw;
/* create expander's vbox */
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (dlg->expander), vbox);
/* add a scrollable window under the expander */
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_ETCHED_IN);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX(vbox), sw, TRUE, TRUE, 8);
/* add the treeview to the scrollable window */
dlg->treeview = gtk_assert_dialog_create_backtrace_list_model ();
gtk_widget_set_size_request (GTK_WIDGET(dlg->treeview), -1, 180);
gtk_container_add (GTK_CONTAINER (sw), dlg->treeview);
/* create button's hbox */
hbox = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_end (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
gtk_button_box_set_layout (GTK_BUTTON_BOX(hbox), GTK_BUTTONBOX_END);
/* add the buttons */
button = gtk_assert_dialog_add_button_to (GTK_BOX(hbox), "Save to _file",
GTK_STOCK_SAVE);
g_signal_connect (button, "clicked",
G_CALLBACK(gtk_assert_dialog_save_backtrace_callback), dlg);
button = gtk_assert_dialog_add_button_to (GTK_BOX(hbox), "Copy to clip_board",
GTK_STOCK_COPY);
g_signal_connect (button, "clicked", G_CALLBACK(gtk_assert_dialog_copy_callback), dlg);
}
#endif // wxUSE_STACKWALKER
/* add the checkbutton */
dlg->shownexttime = gtk_check_button_new_with_mnemonic("Show this _dialog the next time");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(dlg->shownexttime), TRUE);
gtk_box_pack_end(GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(dlg))), dlg->shownexttime, false, true, 8);
/* add the stop button */
gtk_assert_dialog_add_button (dlg, "_Stop", GTK_STOCK_QUIT, GTK_ASSERT_DIALOG_STOP);
/* add the continue button */
continuebtn = gtk_assert_dialog_add_button (dlg, "_Continue", GTK_STOCK_YES, GTK_ASSERT_DIALOG_CONTINUE);
gtk_dialog_set_default_response (GTK_DIALOG (dlg), GTK_ASSERT_DIALOG_CONTINUE);
g_signal_connect (continuebtn, "clicked", G_CALLBACK(gtk_assert_dialog_continue_callback), dlg);
/* complete creation */
dlg->callback = NULL;
dlg->userdata = NULL;
/* the resizable property of this window is modified by the expander:
when it's collapsed, the window must be non-resizable! */
gtk_window_set_resizable (GTK_WINDOW (dlg), FALSE);
gtk_widget_pop_composite_child ();
gtk_widget_show_all (GTK_WIDGET(dlg));
}
