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Fix some issues with reference handling in the printing code. (#429902,

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2007-04-29  Matthias Clasen <mclasen@redhat.com>

        Fix some issues with reference handling in the printing
        code.  (#429902, Mathias Hasselmann)

        * gtk/gtkprintoperation.c (gtk_print_operation_finalize):
        Unref the print context, if we have one.
        (gtk_print_operation_done): Add a default ::done handler
        that unrefs the print context.
        (preview_ready): Take a reference on the print operation
        preview here.
        (print_pages_idle): ...not here,
        (preview_print_idle_done): ...and release it here.

        * tests/print-editor.c (preview_cb): Take a reference
        on the print operation here.

svn path=/trunk/; revision=17722
This commit is contained in:
Matthias Clasen 2007-04-30 04:45:33 +00:00 committed by Matthias Clasen
parent 7f95ef5ef3
commit a788ef97a4
3 changed files with 38 additions and 4 deletions
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17
ChangeLog
View File

@ -1,3 +1,20 @@
2007-04-29 Matthias Clasen <mclasen@redhat.com>
Fix some issues with reference handling in the printing
code. (#429902, Mathias Hasselmann)
* gtk/gtkprintoperation.c (gtk_print_operation_finalize):
Unref the print context, if we have one.
(gtk_print_operation_done): Add a default ::done handler
that unrefs the print context.
(preview_ready): Take a reference on the print operation
preview here.
(print_pages_idle): ...not here,
(preview_print_idle_done): ...and release it here.
* tests/print-editor.c (preview_cb): Take a reference
on the print operation here.
2007-04-29 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkprintoperation.c (print_pages_idle): Don't get

23
gtk/gtkprintoperation.c
View File

@ -120,6 +120,9 @@ gtk_print_operation_finalize (GObject *object)
if (priv->print_settings)
g_object_unref (priv->print_settings);
if (priv->print_context)
g_object_unref (priv->print_context);
g_free (priv->export_filename);
g_free (priv->job_name);
g_free (priv->custom_tab_label);
@ -396,6 +399,8 @@ preview_print_idle_done (gpointer data)
g_free (pop->filename);
gtk_print_operation_preview_end_preview (pop->preview);
g_object_unref (op);
g_free (pop);
}
@ -447,6 +452,8 @@ preview_ready (GtkPrintOperationPreview *preview,
pop->page_nr = 0;
pop->print_context = context;
g_object_ref (preview);
gdk_threads_add_idle_full (G_PRIORITY_DEFAULT_IDLE + 10,
preview_print_idle,
pop,
@ -495,6 +502,18 @@ gtk_print_operation_create_custom_widget (GtkPrintOperation *operation)
return NULL;
}
static void
gtk_print_operation_done (GtkPrintOperation *operation)
{
GtkPrintOperationPrivate *priv = operation->priv;
if (priv->print_context)
{
g_object_unref (priv->print_context);
priv->print_context = NULL;
}
}
static gboolean
custom_widget_accumulator (GSignalInvocationHint *ihint,
GValue *return_accu,
@ -523,6 +542,7 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
class->preview = gtk_print_operation_preview_handler;
class->create_custom_widget = gtk_print_operation_create_custom_widget;
class->done = gtk_print_operation_done;
g_type_class_add_private (gobject_class, sizeof (GtkPrintOperationPrivate));
@ -1935,7 +1955,6 @@ print_pages_idle_done (gpointer user_data)
GTK_PRINT_OPERATION_RESULT_APPLY);
g_object_unref (data->op);
g_free (data);
}
@ -2129,8 +2148,6 @@ print_pages_idle (gpointer user_data)
{
done = TRUE;
g_object_ref (data->op);
g_signal_emit_by_name (data->op, "ready", priv->print_context);
goto out;
}

2
tests/print-editor.c
View File

@ -578,7 +578,7 @@ preview_cb (GtkPrintOperation *op,
gtk_print_context_set_cairo_context (context, cr, 72, 72);
cairo_destroy (cr);
pop->op = op;
pop->op = g_object_ref (op);
pop->preview = preview;
pop->spin = page;
pop->area = da;