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-rw-r--r--panels/printers/pp-ppd-option-widget.c535
1 files changed, 535 insertions, 0 deletions
diff --git a/panels/printers/pp-ppd-option-widget.c b/panels/printers/pp-ppd-option-widget.c
new file mode 100644
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--- /dev/null
+++ b/panels/printers/pp-ppd-option-widget.c
@@ -0,0 +1,535 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright 2012 Red Hat, Inc,
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Marek Kasik <mkasik@redhat.com>
+ */
+
+#include "config.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <glib/gi18n-lib.h>
+#include <glib/gstdio.h>
+
+#include "pp-ppd-option-widget.h"
+#include "pp-utils.h"
+
+static void pp_ppd_option_widget_finalize (GObject *object);
+
+static gboolean construct_widget (PpPPDOptionWidget *self);
+static void update_widget (PpPPDOptionWidget *self);
+static void update_widget_real (PpPPDOptionWidget *self);
+
+struct _PpPPDOptionWidget
+{
+ GtkBox parent_instance;
+
+ GtkWidget *switch_button;
+ GtkWidget *dropdown;
+ GtkWidget *image;
+ GtkWidget *box;
+
+ ppd_option_t *option;
+
+ gchar *printer_name;
+ gchar *option_name;
+
+ cups_dest_t *destination;
+ gboolean destination_set;
+
+ gchar *ppd_filename;
+ gboolean ppd_filename_set;
+
+ GCancellable *cancellable;
+};
+
+G_DEFINE_TYPE (PpPPDOptionWidget, pp_ppd_option_widget, GTK_TYPE_BOX)
+
+/* This list comes from Gtk+ */
+static const struct {
+ const char *keyword;
+ const char *choice;
+ const char *translation;
+} ppd_choice_translations[] = {
+ { "Duplex", "None", N_("One Sided") },
+ /* Translators: this is an option of "Two Sided" */
+ { "Duplex", "DuplexNoTumble", N_("Long Edge (Standard)") },
+ /* Translators: this is an option of "Two Sided" */
+ { "Duplex", "DuplexTumble", N_("Short Edge (Flip)") },
+ /* Translators: this is an option of "Paper Source" */
+ { "InputSlot", "Auto", N_("Auto Select") },
+ /* Translators: this is an option of "Paper Source" */
+ { "InputSlot", "AutoSelect", N_("Auto Select") },
+ /* Translators: this is an option of "Paper Source" */
+ { "InputSlot", "Default", N_("Printer Default") },
+ /* Translators: this is an option of "Paper Source" */
+ { "InputSlot", "None", N_("Printer Default") },
+ /* Translators: this is an option of "Paper Source" */
+ { "InputSlot", "PrinterDefault", N_("Printer Default") },
+ /* Translators: this is an option of "Paper Source" */
+ { "InputSlot", "Unspecified", N_("Auto Select") },
+ /* Translators: this is an option of "Resolution" */
+ { "Resolution", "default", N_("Printer Default") },
+ /* Translators: this is an option of "GhostScript" */
+ { "PreFilter", "EmbedFonts", N_("Embed GhostScript fonts only") },
+ /* Translators: this is an option of "GhostScript" */
+ { "PreFilter", "Level1", N_("Convert to PS level 1") },
+ /* Translators: this is an option of "GhostScript" */
+ { "PreFilter", "Level2", N_("Convert to PS level 2") },
+ /* Translators: this is an option of "GhostScript" */
+ { "PreFilter", "No", N_("No pre-filtering") },
+};
+
+static ppd_option_t *
+cups_option_copy (ppd_option_t *option)
+{
+ ppd_option_t *result;
+ gint i;
+
+ result = g_new0 (ppd_option_t, 1);
+
+ *result = *option;
+
+ result->choices = g_new (ppd_choice_t, result->num_choices);
+ for (i = 0; i < result->num_choices; i++)
+ {
+ result->choices[i] = option->choices[i];
+ result->choices[i].code = g_strdup (option->choices[i].code);
+ result->choices[i].option = result;
+ }
+
+ return result;
+}
+
+static void
+cups_option_free (ppd_option_t *option)
+{
+ gint i;
+
+ if (option)
+ {
+ for (i = 0; i < option->num_choices; i++)
+ g_free (option->choices[i].code);
+
+ g_free (option->choices);
+ g_free (option);
+ }
+}
+
+static void
+pp_ppd_option_widget_class_init (PpPPDOptionWidgetClass *class)
+{
+ GObjectClass *object_class;
+
+ object_class = G_OBJECT_CLASS (class);
+
+ object_class->finalize = pp_ppd_option_widget_finalize;
+}
+
+static void
+pp_ppd_option_widget_init (PpPPDOptionWidget *self)
+{
+ gtk_orientable_set_orientation (GTK_ORIENTABLE (self),
+ GTK_ORIENTATION_HORIZONTAL);
+}
+
+static void
+pp_ppd_option_widget_finalize (GObject *object)
+{
+ PpPPDOptionWidget *self = PP_PPD_OPTION_WIDGET (object);
+
+ g_cancellable_cancel (self->cancellable);
+ if (self->ppd_filename)
+ g_unlink (self->ppd_filename);
+
+ g_clear_pointer (&self->option, cups_option_free);
+ g_clear_pointer (&self->printer_name, g_free);
+ g_clear_pointer (&self->option_name, g_free);
+ if (self->destination)
+ {
+ cupsFreeDests (1, self->destination);
+ self->destination = NULL;
+ }
+ g_clear_pointer (&self->ppd_filename, g_free);
+ g_clear_object (&self->cancellable);
+
+ G_OBJECT_CLASS (pp_ppd_option_widget_parent_class)->finalize (object);
+}
+
+static const gchar *
+ppd_choice_translate (ppd_choice_t *choice)
+{
+ const gchar *keyword = choice->option->keyword;
+ gint i;
+
+ for (i = 0; i < G_N_ELEMENTS (ppd_choice_translations); i++)
+ {
+ if (g_strcmp0 (ppd_choice_translations[i].keyword, keyword) == 0 &&
+ g_strcmp0 (ppd_choice_translations[i].choice, choice->choice) == 0)
+ {
+ return _(ppd_choice_translations[i].translation);
+ }
+ }
+
+ return choice->text;
+}
+
+GtkWidget *
+pp_ppd_option_widget_new (ppd_option_t *option,
+ const gchar *printer_name)
+{
+ PpPPDOptionWidget *self = NULL;
+
+ if (option && printer_name)
+ {
+ self = g_object_new (PP_TYPE_PPD_OPTION_WIDGET, NULL);
+
+ self->printer_name = g_strdup (printer_name);
+ self->option = cups_option_copy (option);
+ self->option_name = g_strdup (option->keyword);
+
+ if (construct_widget (self))
+ {
+ update_widget_real (self);
+ }
+ else
+ {
+ g_object_ref_sink (self);
+ g_object_unref (self);
+ self = NULL;
+ }
+ }
+
+ return (GtkWidget *) self;
+}
+
+static GtkWidget *
+dropdown_new (void)
+{
+ GtkStringList *store = NULL;
+ GtkWidget *dropdown;
+
+ store = gtk_string_list_new (NULL);
+
+ dropdown = gtk_drop_down_new (G_LIST_MODEL (store), NULL);
+
+ return dropdown;
+}
+
+static void
+dropdown_append (GtkWidget *dropdown,
+ const gchar *display_text)
+{
+ GtkStringList *store;
+
+ store = GTK_STRING_LIST (gtk_drop_down_get_model (GTK_DROP_DOWN (dropdown)));
+
+ gtk_string_list_append (store, display_text);
+}
+
+static void
+dropdown_set (GtkWidget *dropdown,
+ ppd_option_t *option,
+ const gchar *value)
+{
+ for (guint i = 0; i < option->num_choices; i++)
+ {
+ if (g_strcmp0 (option->choices[i].choice, value) == 0)
+ {
+ gtk_drop_down_set_selected (GTK_DROP_DOWN (dropdown), i);
+ break;
+ }
+ }
+}
+
+static char *
+dropdown_get (GtkWidget *dropdown,
+ ppd_option_t *option)
+{
+ guint selected_item;
+ gchar *value = NULL;
+
+ selected_item = gtk_drop_down_get_selected (GTK_DROP_DOWN (dropdown));
+
+ if (selected_item != GTK_INVALID_LIST_POSITION)
+ {
+ value = option->choices[selected_item].choice;
+ }
+
+ return value;
+}
+
+static void
+printer_add_option_async_cb (gboolean success,
+ gpointer user_data)
+{
+ PpPPDOptionWidget *self = user_data;
+
+ update_widget (user_data);
+ g_clear_object (&self->cancellable);
+}
+
+static void
+switch_changed_cb (PpPPDOptionWidget *self)
+{
+ gchar **values;
+
+ values = g_new0 (gchar *, 2);
+
+ if (gtk_switch_get_active (GTK_SWITCH (self->switch_button)))
+ values[0] = g_strdup ("True");
+ else
+ values[0] = g_strdup ("False");
+
+ g_cancellable_cancel (self->cancellable);
+ g_clear_object (&self->cancellable);
+
+ self->cancellable = g_cancellable_new ();
+ printer_add_option_async (self->printer_name,
+ self->option_name,
+ values,
+ FALSE,
+ self->cancellable,
+ printer_add_option_async_cb,
+ self);
+
+ g_strfreev (values);
+}
+
+static void
+dropdown_changed_cb (PpPPDOptionWidget *self)
+{
+ gchar **values;
+
+ values = g_new0 (gchar *, 2);
+ values[0] = g_strdup (dropdown_get (self->dropdown, self->option));
+
+ g_cancellable_cancel (self->cancellable);
+ g_clear_object (&self->cancellable);
+
+ self->cancellable = g_cancellable_new ();
+ printer_add_option_async (self->printer_name,
+ self->option_name,
+ values,
+ FALSE,
+ self->cancellable,
+ printer_add_option_async_cb,
+ self);
+
+ g_strfreev (values);
+}
+
+static gboolean
+construct_widget (PpPPDOptionWidget *self)
+{
+ gint i;
+
+ /* Don't show options which has only one choice */
+ if (self->option && self->option->num_choices > 1)
+ {
+ switch (self->option->ui)
+ {
+ case PPD_UI_BOOLEAN:
+ self->switch_button = gtk_switch_new ();
+
+ g_signal_connect_object (self->switch_button, "notify::active", G_CALLBACK (switch_changed_cb), self, G_CONNECT_SWAPPED);
+ gtk_box_append (GTK_BOX (self), self->switch_button);
+ break;
+
+ case PPD_UI_PICKONE:
+ self->dropdown = dropdown_new ();
+
+ for (i = 0; i < self->option->num_choices; i++)
+ {
+ dropdown_append (self->dropdown,
+ ppd_choice_translate (&self->option->choices[i]));
+ }
+
+ gtk_box_append (GTK_BOX (self), self->dropdown);
+ g_signal_connect_object (self->dropdown, "notify::selected", G_CALLBACK (dropdown_changed_cb), self, G_CONNECT_SWAPPED);
+ break;
+
+ case PPD_UI_PICKMANY:
+ self->dropdown = dropdown_new ();
+
+ for (i = 0; i < self->option->num_choices; i++)
+ {
+ dropdown_append (self->dropdown,
+ ppd_choice_translate (&self->option->choices[i]));
+ }
+
+ gtk_box_append (GTK_BOX (self), self->dropdown);
+ g_signal_connect_object (self->dropdown, "notify::selected", G_CALLBACK (dropdown_changed_cb), self, G_CONNECT_SWAPPED);
+ break;
+
+ default:
+ break;
+ }
+
+ self->image = gtk_image_new_from_icon_name ("dialog-warning-symbolic");
+ if (!self->image)
+ self->image = gtk_image_new_from_icon_name ("dialog-warning");
+ gtk_box_append (GTK_BOX (self), self->image);
+
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
+
+static void
+update_widget_real (PpPPDOptionWidget *self)
+{
+ ppd_option_t *option = NULL, *iter;
+ ppd_file_t *ppd_file;
+ gint i;
+
+ if (self->ppd_filename_set && self->ppd_filename)
+ {
+ ppd_file = ppdOpenFile (self->ppd_filename);
+ ppdLocalize (ppd_file);
+
+ if (ppd_file)
+ {
+ ppdMarkDefaults (ppd_file);
+
+ for (iter = ppdFirstOption(ppd_file); iter; iter = ppdNextOption(ppd_file))
+ {
+ if (g_str_equal (iter->keyword, self->option_name))
+ {
+ g_clear_pointer (&self->option, cups_option_free);
+ self->option = cups_option_copy (iter);
+ break;
+ }
+ }
+
+ ppdClose (ppd_file);
+ }
+
+ g_unlink (self->ppd_filename);
+ g_free (self->ppd_filename);
+ self->ppd_filename = NULL;
+ }
+
+ option = self->option;
+
+ if (option)
+ {
+ g_autofree gchar *value = NULL;
+
+ for (i = 0; i < option->num_choices; i++)
+ if (option->choices[i].marked)
+ value = g_strdup (option->choices[i].choice);
+
+ if (value == NULL)
+ value = g_strdup (option->defchoice);
+
+ if (value)
+ {
+ switch (option->ui)
+ {
+ case PPD_UI_BOOLEAN:
+ g_signal_handlers_block_by_func (self->switch_button, switch_changed_cb, self);
+ if (g_ascii_strcasecmp (value, "True") == 0)
+ gtk_switch_set_active (GTK_SWITCH (self->switch_button), TRUE);
+ else
+ gtk_switch_set_active (GTK_SWITCH (self->switch_button), FALSE);
+ g_signal_handlers_unblock_by_func (self->switch_button, switch_changed_cb, self);
+ break;
+
+ case PPD_UI_PICKONE:
+ g_signal_handlers_block_by_func (self->dropdown, dropdown_changed_cb, self);
+ dropdown_set (self->dropdown, option, value);
+ g_signal_handlers_unblock_by_func (self->dropdown, dropdown_changed_cb, self);
+ break;
+
+ case PPD_UI_PICKMANY:
+ g_signal_handlers_block_by_func (self->dropdown, dropdown_changed_cb, self);
+ dropdown_set (self->dropdown, option, value);
+ g_signal_handlers_unblock_by_func (self->dropdown, dropdown_changed_cb, self);
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (option->conflicted)
+ gtk_widget_show (self->image);
+ else
+ gtk_widget_hide (self->image);
+ }
+}
+
+static void
+get_named_dest_cb (cups_dest_t *dest,
+ gpointer user_data)
+{
+ PpPPDOptionWidget *self = user_data;
+
+ if (self->destination)
+ cupsFreeDests (1, self->destination);
+
+ self->destination = dest;
+ self->destination_set = TRUE;
+
+ if (self->ppd_filename_set)
+ {
+ update_widget_real (self);
+ }
+}
+
+static void
+printer_get_ppd_cb (const gchar *ppd_filename,
+ gpointer user_data)
+{
+ PpPPDOptionWidget *self = user_data;
+
+ if (self->ppd_filename)
+ {
+ g_unlink (self->ppd_filename);
+ g_free (self->ppd_filename);
+ }
+
+ self->ppd_filename = g_strdup (ppd_filename);
+ self->ppd_filename_set = TRUE;
+
+ if (self->destination_set)
+ {
+ update_widget_real (self);
+ }
+}
+
+static void
+update_widget (PpPPDOptionWidget *self)
+{
+ self->ppd_filename_set = FALSE;
+ self->destination_set = FALSE;
+
+ get_named_dest_async (self->printer_name,
+ get_named_dest_cb,
+ self);
+
+ printer_get_ppd_async (self->printer_name,
+ NULL,
+ 0,
+ printer_get_ppd_cb,
+ self);
+}
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