[gnome-panel] status-notifier: add SnImageMenuItem

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 39b3442d7647ef76c837046d46797a18525dda99
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Nov 4 13:09:59 2016 +0200

    status-notifier: add SnImageMenuItem

 applets/status-notifier/Makefile.am          |    2 +
 applets/status-notifier/sn-image-menu-item.c |  216 ++++++++++++++++++++++++++
 applets/status-notifier/sn-image-menu-item.h |   41 +++++
 3 files changed, 259 insertions(+), 0 deletions(-)
---
diff --git a/applets/status-notifier/Makefile.am b/applets/status-notifier/Makefile.am
index c4a7a21..4ce5ddc 100644
--- a/applets/status-notifier/Makefile.am
+++ b/applets/status-notifier/Makefile.am
@@ -25,6 +25,8 @@ status_notifier_la_SOURCES = \
        sn-host.h \
        sn-host-v0.c \
        sn-host-v0.h \
+       sn-image-menu-item.c \
+       sn-image-menu-item.h \
        sn-item.c \
        sn-item.h \
        sn-item-v0.c \
diff --git a/applets/status-notifier/sn-image-menu-item.c b/applets/status-notifier/sn-image-menu-item.c
new file mode 100644
index 0000000..2246b96
--- /dev/null
+++ b/applets/status-notifier/sn-image-menu-item.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * 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/>.
+ */
+
+#include "config.h"
+
+#include "sn-image-menu-item.h"
+
+#define SPACING 6
+
+struct _SnImageMenuItem
+{
+  GtkMenuItem  parent;
+
+  GtkWidget   *box;
+  GtkWidget   *image;
+  GtkWidget   *accel_label;
+
+  gchar       *label;
+};
+
+G_DEFINE_TYPE (SnImageMenuItem, sn_image_menu_item, GTK_TYPE_MENU_ITEM)
+
+static void
+sn_image_menu_item_get_preferred_width (GtkWidget *widget,
+                                        gint      *minimum,
+                                        gint      *natural)
+{
+  GtkWidgetClass *widget_class;
+  SnImageMenuItem *item;
+  GtkRequisition image_requisition;
+
+  widget_class = GTK_WIDGET_CLASS (sn_image_menu_item_parent_class);
+  item = SN_IMAGE_MENU_ITEM (widget);
+
+  widget_class->get_preferred_width (widget, minimum, natural);
+
+  if (!gtk_widget_get_visible (item->image))
+    return;
+
+  gtk_widget_get_preferred_size (item->image, &image_requisition, NULL);
+
+  if (image_requisition.width > 0)
+    {
+      *minimum -= image_requisition.width + SPACING;
+      *natural -= image_requisition.width + SPACING;
+    }
+}
+
+static void
+sn_image_menu_item_size_allocate (GtkWidget     *widget,
+                                  GtkAllocation *allocation)
+{
+  GtkWidgetClass *widget_class;
+  SnImageMenuItem *item;
+  GtkRequisition image_requisition;
+  GtkAllocation box_allocation;
+
+  widget_class = GTK_WIDGET_CLASS (sn_image_menu_item_parent_class);
+  item = SN_IMAGE_MENU_ITEM (widget);
+
+  widget_class->size_allocate (widget, allocation);
+
+  if (!gtk_widget_get_visible (item->image))
+    return;
+
+  gtk_widget_get_preferred_size (item->image, &image_requisition, NULL);
+  gtk_widget_get_allocation (item->box, &box_allocation);
+
+  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+    {
+      if (image_requisition.width > 0)
+        box_allocation.x -= image_requisition.width + SPACING;
+    }
+  else
+    {
+      if (image_requisition.width > 0)
+        box_allocation.x += image_requisition.width + SPACING;
+    }
+
+  gtk_widget_size_allocate (item->box, &box_allocation);
+}
+
+static const gchar *
+sn_image_menu_item_get_label (GtkMenuItem *menu_item)
+{
+  SnImageMenuItem *item;
+
+  item = SN_IMAGE_MENU_ITEM (menu_item);
+
+  return item->label;
+}
+
+static void
+sn_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
+                                        gint        *requisition)
+{
+  SnImageMenuItem *item;
+  GtkRequisition image_requisition;
+
+  item = SN_IMAGE_MENU_ITEM (menu_item);
+
+  *requisition = 0;
+
+  if (!gtk_widget_get_visible (item->image))
+    return;
+
+  gtk_widget_get_preferred_size (item->image, &image_requisition, NULL);
+
+  if (image_requisition.width > 0)
+    *requisition = image_requisition.width + SPACING;
+}
+
+static void
+sn_image_menu_item_set_label (GtkMenuItem *menu_item,
+                              const gchar *label)
+{
+  SnImageMenuItem *item;
+
+  item = SN_IMAGE_MENU_ITEM (menu_item);
+
+  if (g_strcmp0 (item->label, label) != 0)
+    {
+      g_free (item->label);
+      item->label = g_strdup (label);
+
+      gtk_label_set_text_with_mnemonic (GTK_LABEL (item->accel_label), label);
+      g_object_notify (G_OBJECT (menu_item), "label");
+    }
+}
+
+static void
+sn_image_menu_item_class_init (SnImageMenuItemClass *item_class)
+{
+  GtkWidgetClass *widget_class;
+  GtkMenuItemClass *menu_item_class;
+
+  widget_class = GTK_WIDGET_CLASS (item_class);
+  menu_item_class = GTK_MENU_ITEM_CLASS (item_class);
+
+  widget_class->get_preferred_width = sn_image_menu_item_get_preferred_width;
+  widget_class->size_allocate = sn_image_menu_item_size_allocate;
+
+  menu_item_class->get_label = sn_image_menu_item_get_label;
+  menu_item_class->toggle_size_request = sn_image_menu_item_toggle_size_request;
+  menu_item_class->set_label = sn_image_menu_item_set_label;
+}
+
+static void
+sn_image_menu_item_init (SnImageMenuItem *item)
+{
+  GtkAccelLabel *accel_label;
+
+  item->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, SPACING);
+  gtk_container_add (GTK_CONTAINER (item), item->box);
+  gtk_widget_show (item->box);
+
+  item->image = gtk_image_new ();
+  gtk_box_pack_start (GTK_BOX (item->box), item->image, FALSE, FALSE, 0);
+
+  item->accel_label = gtk_accel_label_new ("");
+  gtk_box_pack_end (GTK_BOX (item->box), item->accel_label, TRUE, TRUE, 0);
+  gtk_label_set_xalign (GTK_LABEL (item->accel_label), 0.0);
+  gtk_widget_show (item->accel_label);
+
+  accel_label = GTK_ACCEL_LABEL (item->accel_label);
+  gtk_accel_label_set_accel_widget (accel_label, GTK_WIDGET (item));
+  gtk_label_set_use_underline (GTK_LABEL (accel_label), TRUE);
+}
+
+GtkWidget *
+sn_image_menu_item_new (void)
+{
+  return g_object_new (SN_TYPE_IMAGE_MENU_ITEM, NULL);
+}
+
+void
+sn_image_menu_item_set_image_from_icon_name (SnImageMenuItem *item,
+                                             const gchar     *icon_name)
+{
+  GtkImage *image;
+
+  image = GTK_IMAGE (item->image);
+
+  gtk_image_set_from_icon_name (image, icon_name, GTK_ICON_SIZE_MENU);
+  gtk_image_set_pixel_size (image, 16);
+  gtk_widget_show (item->image);
+}
+
+void
+sn_image_menu_item_set_image_from_icon_pixbuf (SnImageMenuItem *item,
+                                               GdkPixbuf       *pixbuf)
+{
+  gtk_image_set_from_pixbuf (GTK_IMAGE (item->image), pixbuf);
+  gtk_widget_show (item->image);
+}
+
+void
+sn_image_menu_item_unset_image (SnImageMenuItem *item)
+{
+  gtk_image_clear (GTK_IMAGE (item->image));
+  gtk_widget_hide (item->image);
+}
diff --git a/applets/status-notifier/sn-image-menu-item.h b/applets/status-notifier/sn-image-menu-item.h
new file mode 100644
index 0000000..b0fe8a9
--- /dev/null
+++ b/applets/status-notifier/sn-image-menu-item.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * 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/>.
+ */
+
+#ifndef SN_IMAGE_MENU_ITEM_H
+#define SN_IMAGE_MENU_ITEM_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define SN_TYPE_IMAGE_MENU_ITEM sn_image_menu_item_get_type ()
+G_DECLARE_FINAL_TYPE (SnImageMenuItem, sn_image_menu_item,
+                      SN, IMAGE_MENU_ITEM, GtkMenuItem)
+
+GtkWidget *sn_image_menu_item_new                        (void);
+
+void       sn_image_menu_item_set_image_from_icon_name   (SnImageMenuItem *item,
+                                                          const gchar     *icon_name);
+
+void       sn_image_menu_item_set_image_from_icon_pixbuf (SnImageMenuItem *item,
+                                                          GdkPixbuf       *pixbuf);
+
+void       sn_image_menu_item_unset_image                (SnImageMenuItem *item);
+
+G_END_DECLS
+
+#endif