Add controlpanel section for selecting background image

6 files changed, 236 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index a4eb829..624e774 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,6 +51,7 @@ data/Makefile
 data/sugar-emulator.desktop
 extensions/cpsection/aboutcomputer/Makefile
 extensions/cpsection/aboutme/Makefile
+extensions/cpsection/background/Makefile
 extensions/cpsection/datetime/Makefile
 extensions/cpsection/frame/Makefile
 extensions/cpsection/keyboard/Makefile
diff --git a/extensions/cpsection/Makefile.am b/extensions/cpsection/Makefile.am
index a92b5dd..9434d45 100644
--- a/extensions/cpsection/Makefile.am
+++ b/extensions/cpsection/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = aboutme aboutcomputer datetime frame keyboard language \
+SUBDIRS = aboutme aboutcomputer background datetime frame keyboard language \
     modemconfiguration network power updater
 
 sugardir = $(pkgdatadir)/extensions/cpsection
diff --git a/extensions/cpsection/background/Makefile.am b/extensions/cpsection/background/Makefile.am
new file mode 100644
index 0000000..7c5da12
--- /dev/null
+++ b/extensions/cpsection/background/Makefile.am
@@ -0,0 +1,6 @@
+sugardir = $(pkgdatadir)/extensions/cpsection/background
+
+sugar_PYTHON = 		\
+	__init__.py	\
+	model.py	\
+	view.py		
diff --git a/extensions/cpsection/background/__init__.py b/extensions/cpsection/background/__init__.py
new file mode 100644
index 0000000..8a97483
--- /dev/null
+++ b/extensions/cpsection/background/__init__.py
@@ -0,0 +1,21 @@
+# Copyright (C) 2008, OLPC
+#
+# 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
+
+from gettext import gettext as _
+
+CLASS = 'Background'
+ICON = 'image-x-generic'
+TITLE = _('Background')
diff --git a/extensions/cpsection/background/model.py b/extensions/cpsection/background/model.py
new file mode 100644
index 0000000..dd80750
--- /dev/null
+++ b/extensions/cpsection/background/model.py
@@ -0,0 +1,70 @@
+# Copyright (C) 2012 Agustin Zubiaga <aguz@sugarlabs.org>
+#
+# 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
+#
+
+import os
+import logging
+
+from gi.repository import GConf
+from gi.repository import GdkPixbuf
+
+from sugar3.graphics import style
+from jarabe.journal.model import get_documents_path
+
+BACKGROUNDS_DIRS = (os.path.join('/usr', 'share', 'backgrounds'),
+                    get_documents_path())
+
+
+def set_background(file_path):
+    client = GConf.Client.get_default()
+    if file_path is None:
+        client.set_string('/desktop/sugar/user/background', '')
+    else:
+        client.set_string('/desktop/sugar/user/background', str(file_path))
+    return 1
+
+
+def get_background():
+    client = GConf.Client.get_default()
+    return client.get_string('/desktop/sugar/user/background')
+
+
+def fill_background_list(store):
+    paths_list = []
+
+    for _dir in BACKGROUNDS_DIRS:
+        if os.path.exists(_dir) and _dir:
+            for bg in os.listdir(_dir):
+                path = os.path.join(_dir, bg)
+                if os.path.isfile(path):
+                    try:
+                        pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_size(
+                            path,
+                            style.XLARGE_ICON_SIZE,
+                            style.XLARGE_ICON_SIZE)
+                        store.append([pixbuf, path])
+                        paths_list.append(path)
+                    except Exception as e:
+                        logging.debug(
+                            'Unable to create pixbuf from file %s: %s' % \
+                            (path, str(e)))
+    return paths_list
+
+BACKGROUND_CHOOSED = get_background()
+
+
+def undo(store):
+    set_background(BACKGROUND_CHOOSED)
diff --git a/extensions/cpsection/background/view.py b/extensions/cpsection/background/view.py
new file mode 100644
index 0000000..c106fcb
--- /dev/null
+++ b/extensions/cpsection/background/view.py
@@ -0,0 +1,137 @@
+# Copyright (C) 2012 Agustin Zubiaga <aguz@sugarlabs.org>
+#
+# 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
+
+from gi.repository import Gtk
+from gi.repository import GdkPixbuf
+
+from sugar3.graphics import style
+from sugar3.graphics.toolbutton import ToolButton
+from jarabe.controlpanel.sectionview import SectionView
+from jarabe.controlpanel.inlinealert import InlineAlert
+
+from gettext import gettext as _
+
+
+class Background(SectionView):
+
+    def __init__(self, model, alerts):
+        SectionView.__init__(self)
+
+        self._model = model
+        self._restart_alerts = alerts
+
+        if 'background' in self._restart_alerts:
+            self._restart_alert.props.msg = self.restart_msg
+            self._restart_alert.show()
+
+        self.set_border_width(style.DEFAULT_SPACING * 2)
+        self.set_spacing(style.DEFAULT_SPACING)
+
+        label_box = Gtk.Box()
+        label_bg = Gtk.Label(label=_('Select a background:'))
+        label_bg.modify_fg(Gtk.StateType.NORMAL,
+                           style.COLOR_SELECTION_GREY.get_gdk_color())
+        label_box.pack_start(label_bg, False, True, 0)
+        self.pack_start(label_box, False, True, 1)
+
+        clear_button = Gtk.Button()
+        clear_button.set_label(_('Clear background'))
+        clear_button.connect('clicked', self._clear_clicked_cb)
+        clear_button.show()
+        self.pack_end(clear_button, False, True, 0)
+
+        sw = Gtk.ScrolledWindow()
+        sw.set_shadow_type(Gtk.ShadowType.ETCHED_IN)
+        sw.set_policy(Gtk.PolicyType.AUTOMATIC,
+                      Gtk.PolicyType.AUTOMATIC)
+
+        store = Gtk.ListStore(GdkPixbuf.Pixbuf, str)
+
+        icon_view = Gtk.IconView.new_with_model(store)
+        icon_view.set_selection_mode(Gtk.SelectionMode.SINGLE)
+        icon_view.connect('selection-changed', self._background_selected,
+                          store)
+        icon_view.set_pixbuf_column(0)
+        icon_view.grab_focus()
+
+        pl = model.fill_background_list(store)
+        self._select_background(icon_view, pl)
+        sw.add(icon_view)
+
+        self.pack_start(sw, True, True, 0)
+
+        self._alert_box = Gtk.HBox(spacing=style.DEFAULT_SPACING)
+        self.pack_start(self._alert_box, False, False, 0)
+        self._alert_box.show()
+
+        self._restart_alert = InlineAlert()
+        self._restart_alert.props.msg = self.restart_msg
+        self._alert_box.pack_start(self._restart_alert, True, True, 0)
+
+        self.setup()
+
+    def _get_selected_path(self, widget, store):
+        try:
+            iter_ = store.get_iter(widget.get_selected_items()[0])
+            image_path = store.get(iter_, 1)[0]
+
+            return image_path, iter_
+        except:
+            return None
+
+    def _background_selected(self, widget, store):
+        selected = self._get_selected_path(widget, store)
+
+        if selected is None:
+            return
+
+        image_path, _iter = selected
+        if image_path != self._model.BACKGROUND_CHOOSED:
+            iter_ = store.get_iter(widget.get_selected_items()[0])
+            image_path = store.get(iter_, 1)[0]
+            self._model.set_background(image_path)
+            self._restart_alerts.append('background')
+            self.needs_restart = True
+            self._alert_box.show()
+            self._restart_alert.show()
+        else:
+            if 'background' in self.restart_alerts:
+                self._restart_alerts.remove('background')
+            self.needs_restart = False
+            self._restart_alert.hide()
+
+    def _select_background(self, icon_view, paths_list):
+        background = self._model.get_background()
+        if background in paths_list:
+            _path = paths_list.index(background)
+            path = Gtk.TreePath.new_from_string('%s' % _path)
+            icon_view.select_path(path)
+            self.needs_restart = False
+
+    def _clear_clicked_cb(self, widget, event=None):
+        self._model.set_background(None)
+        self._restart_alerts.append('background')
+        self.needs_restart = True
+        self._alert_box.show()
+        self._restart_alert.show()
+
+    def setup(self):
+        self.needs_restart = False
+        self.show_all()
+        self._restart_alert.hide()
+
+    def undo(self):
+        self._model.undo()