diff options
Diffstat (limited to 'mate-volume-control/gvc-combo-box.c')
| -rw-r--r-- | mate-volume-control/gvc-combo-box.c | 459 |
1 files changed, 459 insertions, 0 deletions
diff --git a/mate-volume-control/gvc-combo-box.c b/mate-volume-control/gvc-combo-box.c new file mode 100644 index 0000000..25c4639 --- /dev/null +++ b/mate-volume-control/gvc-combo-box.c @@ -0,0 +1,459 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2009 Bastien Nocera + * Copyright (C) 2014 Michal Ratajsky <[email protected]> + * + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include <glib.h> +#include <glib/gi18n.h> +#include <glib-object.h> +#include <gtk/gtk.h> + +#include <libmatemixer/matemixer.h> + +#include "gvc-combo-box.h" + +#define GVC_COMBO_BOX_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_COMBO_BOX, GvcComboBoxPrivate)) + +struct _GvcComboBoxPrivate +{ + GtkWidget *drop_box; + GtkWidget *start_box; + GtkWidget *end_box; + GtkWidget *label; + GtkWidget *button; + GtkTreeModel *model; + GtkWidget *combobox; + MateMixerSwitch *swtch; +}; + +enum { + COL_NAME, + COL_HUMAN_NAME, + NUM_COLS +}; + +enum { + CHANGING, + BUTTON_CLICKED, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0, }; + +enum { + PROP_0, + PROP_SWITCH, + PROP_LABEL, + PROP_SHOW_BUTTON, + PROP_BUTTON_LABEL, + N_PROPERTIES +}; + +static GParamSpec *properties[N_PROPERTIES] = { NULL, }; + +static void gvc_combo_box_class_init (GvcComboBoxClass *klass); +static void gvc_combo_box_init (GvcComboBox *combo); +static void gvc_combo_box_dispose (GObject *object); + +#if GTK_CHECK_VERSION (3, 0, 0) +G_DEFINE_TYPE (GvcComboBox, gvc_combo_box, GTK_TYPE_BOX) +#else +G_DEFINE_TYPE (GvcComboBox, gvc_combo_box, GTK_TYPE_HBOX) +#endif + +MateMixerSwitch * +gvc_combo_box_get_switch (GvcComboBox *combobox) +{ + g_return_val_if_fail (GVC_IS_COMBO_BOX (combobox), NULL); + + return combobox->priv->swtch; +} + +void +gvc_combo_box_set_size_group (GvcComboBox *combobox, + GtkSizeGroup *group, + gboolean symmetric) +{ + g_return_if_fail (GVC_IS_COMBO_BOX (combobox)); + g_return_if_fail (GTK_IS_SIZE_GROUP (group)); + + if (group != NULL) { + gtk_size_group_add_widget (group, combobox->priv->start_box); + if (symmetric == TRUE) + gtk_size_group_add_widget (group, combobox->priv->end_box); + } + gtk_widget_queue_draw (GTK_WIDGET (combobox)); +} + +static void +on_switch_active_option_notify (MateMixerSwitch *swtch, + GParamSpec *pspec, + GvcComboBox *combobox) +{ + GtkTreeIter iter; + MateMixerSwitchOption *active; + gboolean cont; + const gchar *name; + + active = mate_mixer_switch_get_active_option (swtch); + if G_UNLIKELY (active == NULL) { + g_warn_if_reached (); + return; + } + + /* Select the newly activated switch option in the combo box */ + name = mate_mixer_switch_option_get_name (active); + cont = gtk_tree_model_get_iter_first (combobox->priv->model, &iter); + while (cont == TRUE) { + gchar *current; + + gtk_tree_model_get (combobox->priv->model, &iter, + COL_NAME, ¤t, + -1); + if (g_strcmp0 (name, current) == 0) { + gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combobox->priv->combobox), &iter); + g_free (current); + return; + } + g_free (current); + + cont = gtk_tree_model_iter_next (combobox->priv->model, &iter); + } + g_warning ("Could not find switch option '%s' in combo box", name); +} + +static void +gvc_combo_box_set_switch (GvcComboBox *combobox, MateMixerSwitch *swtch) +{ + MateMixerSwitchOption *active; + const GList *options; + + g_return_if_fail (GVC_IS_COMBO_BOX (combobox)); + g_return_if_fail (MATE_MIXER_IS_SWITCH (swtch)); + + combobox->priv->swtch = g_object_ref (swtch); + + active = mate_mixer_switch_get_active_option (swtch); + options = mate_mixer_switch_list_options (swtch); + while (options != NULL) { + GtkTreeIter iter; + MateMixerSwitchOption *option = MATE_MIXER_SWITCH_OPTION (options->data); + + gtk_list_store_insert_with_values (GTK_LIST_STORE (combobox->priv->model), + &iter, + G_MAXINT, + COL_NAME, + mate_mixer_switch_option_get_name (option), + COL_HUMAN_NAME, + mate_mixer_switch_option_get_label (option), + -1); + + /* Select the currently active option of the switch */ + if (option == active) { + gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combobox->priv->combobox), + &iter); + } + options = options->next; + } + + g_signal_connect (G_OBJECT (swtch), + "notify::active-option", + G_CALLBACK (on_switch_active_option_notify), + combobox); +} + +static void +gvc_combo_box_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + GvcComboBox *self = GVC_COMBO_BOX (object); + + switch (prop_id) { + case PROP_SWITCH: + gvc_combo_box_set_switch (self, g_value_get_object (value)); + break; + case PROP_LABEL: + gtk_label_set_text_with_mnemonic (GTK_LABEL (self->priv->label), g_value_get_string (value)); + break; + case PROP_BUTTON_LABEL: + gtk_button_set_label (GTK_BUTTON (self->priv->button), g_value_get_string (value)); + break; + case PROP_SHOW_BUTTON: + gtk_widget_set_visible (self->priv->button, g_value_get_boolean (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gvc_combo_box_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + GvcComboBox *self = GVC_COMBO_BOX (object); + + switch (prop_id) { + case PROP_SWITCH: + g_value_set_object (value, self->priv->swtch); + break; + case PROP_LABEL: + g_value_set_string (value, gtk_label_get_text (GTK_LABEL (self->priv->label))); + break; + case PROP_BUTTON_LABEL: + g_value_set_string (value, gtk_button_get_label (GTK_BUTTON (self->priv->button))); + break; + case PROP_SHOW_BUTTON: + g_value_set_boolean (value, gtk_widget_get_visible (self->priv->button)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gvc_combo_box_class_init (GvcComboBoxClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->dispose = gvc_combo_box_dispose; + object_class->set_property = gvc_combo_box_set_property; + object_class->get_property = gvc_combo_box_get_property; + + properties[PROP_SWITCH] = + g_param_spec_object ("switch", + "switch", + "The MateMixerSwitch", + MATE_MIXER_TYPE_SWITCH, + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT_ONLY | + G_PARAM_STATIC_STRINGS); + + properties[PROP_LABEL] = + g_param_spec_string ("label", + "label", + "The combo box label", + _("_Profile:"), + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT | + G_PARAM_STATIC_STRINGS); + + properties[PROP_SHOW_BUTTON] = + g_param_spec_boolean ("show-button", + "show-button", + "Whether to show the button", + FALSE, + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT | + G_PARAM_STATIC_STRINGS); + + properties[PROP_BUTTON_LABEL] = + g_param_spec_string ("button-label", + "button-label", + "The button's label", + "", + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT | + G_PARAM_STATIC_STRINGS); + + g_object_class_install_properties (object_class, N_PROPERTIES, properties); + + signals[CHANGING] = + g_signal_new ("changing", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GvcComboBoxClass, changing), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, + 1, + MATE_MIXER_TYPE_SWITCH_OPTION); + + signals[BUTTON_CLICKED] = + g_signal_new ("button-clicked", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GvcComboBoxClass, button_clicked), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, + 0, + G_TYPE_NONE); + + g_type_class_add_private (klass, sizeof (GvcComboBoxPrivate)); +} + +static void +on_combo_box_changed (GtkComboBox *widget, GvcComboBox *combobox) +{ + GtkTreeIter iter; + gchar *name; + MateMixerSwitchOption *option; + + if G_UNLIKELY (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter) == FALSE) + return; + + gtk_tree_model_get (combobox->priv->model, &iter, + COL_NAME, &name, + -1); + + option = mate_mixer_switch_get_option (combobox->priv->swtch, name); + if G_UNLIKELY (option == NULL) { + g_warn_if_reached (); + g_free (name); + return; + } + + /* Inform that we are about to change the active option of the switch */ + g_signal_emit (combobox, signals[CHANGING], 0, option); + + mate_mixer_switch_set_active_option (combobox->priv->swtch, option); + g_free (name); +} + +static void +on_combo_box_button_clicked (GtkButton *button, GvcComboBox *combobox) +{ + /* The meaning of the button is defined by the owner, so only notify + * when it is clicked on */ + g_signal_emit (combobox, signals[BUTTON_CLICKED], 0); +} + +static void +gvc_combo_box_init (GvcComboBox *combobox) +{ + GtkWidget *frame; + GtkCellRenderer *renderer; + + frame = gtk_frame_new (NULL); + gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE); + + combobox->priv = GVC_COMBO_BOX_GET_PRIVATE (combobox); + + combobox->priv->model = GTK_TREE_MODEL (gtk_list_store_new (NUM_COLS, + G_TYPE_STRING, + G_TYPE_STRING)); + + combobox->priv->combobox = gtk_combo_box_new_with_model (combobox->priv->model); + + combobox->priv->label = gtk_label_new (NULL); + gtk_misc_set_alignment (GTK_MISC (combobox->priv->label), 0.0, 0.5); + gtk_label_set_mnemonic_widget (GTK_LABEL (combobox->priv->label), + combobox->priv->combobox); + + renderer = gtk_cell_renderer_text_new (); + gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combobox->priv->combobox), + renderer, + FALSE); + gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combobox->priv->combobox), + renderer, + "text", + COL_HUMAN_NAME); + +#if GTK_CHECK_VERSION (3, 0, 0) + combobox->priv->drop_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); + combobox->priv->start_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); + combobox->priv->end_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6); + + /* Make sure the combo box does not get too long on long profile names */ + g_object_set (G_OBJECT (renderer), + "ellipsize", + PANGO_ELLIPSIZE_END, + NULL); + + gtk_combo_box_set_popup_fixed_width (GTK_COMBO_BOX (combobox->priv->combobox), FALSE); +#else + combobox->priv->drop_box = gtk_hbox_new (FALSE, 6); + combobox->priv->start_box = gtk_hbox_new (FALSE, 6); + combobox->priv->end_box = gtk_hbox_new (FALSE, 6); +#endif + + gtk_box_pack_start (GTK_BOX (combobox), + frame, + TRUE, TRUE, 0); + + gtk_box_pack_start (GTK_BOX (combobox->priv->drop_box), + combobox->priv->start_box, + FALSE, FALSE, 0); + gtk_box_pack_start (GTK_BOX (combobox->priv->start_box), + combobox->priv->label, + FALSE, FALSE, 0); + gtk_box_pack_start (GTK_BOX (combobox->priv->drop_box), + combobox->priv->combobox, + TRUE, TRUE, 0); + + combobox->priv->button = gtk_button_new_with_label (""); + + gtk_box_pack_start (GTK_BOX (combobox->priv->drop_box), + combobox->priv->button, + FALSE, FALSE, 0); + gtk_box_pack_start (GTK_BOX (combobox->priv->drop_box), + combobox->priv->end_box, + FALSE, FALSE, 0); + + gtk_container_add (GTK_CONTAINER (frame), combobox->priv->drop_box); + + g_signal_connect (G_OBJECT (combobox->priv->combobox), + "changed", + G_CALLBACK (on_combo_box_changed), + combobox); + g_signal_connect (G_OBJECT (combobox->priv->button), + "clicked", + G_CALLBACK (on_combo_box_button_clicked), + combobox); + + gtk_widget_set_no_show_all (combobox->priv->button, TRUE); + gtk_widget_show_all (frame); +} + +static void +gvc_combo_box_dispose (GObject *object) +{ + GvcComboBox *combobox; + + combobox = GVC_COMBO_BOX (object); + + if G_LIKELY (combobox->priv->swtch != NULL) { + g_signal_handlers_disconnect_by_func (G_OBJECT (combobox->priv->swtch), + G_CALLBACK (on_switch_active_option_notify), + combobox); + g_clear_object (&combobox->priv->swtch); + } + + g_clear_object (&combobox->priv->model); + + G_OBJECT_CLASS (gvc_combo_box_parent_class)->dispose (object); +} + +GtkWidget * +gvc_combo_box_new (MateMixerSwitch *swtch, const gchar *label) +{ + return g_object_new (GVC_TYPE_COMBO_BOX, + "switch", swtch, + "label", label, +#if GTK_CHECK_VERSION (3, 0, 0) + "orientation", GTK_ORIENTATION_HORIZONTAL, +#endif + NULL); +} |