From a41fa81cc6fc94f33e7524bee141163c4f1121eb Mon Sep 17 00:00:00 2001
From: Salvatore Iovene <salvatore@iovene.com>
Date: Sun, 6 Dec 2009 17:43:51 +0200
Subject: [PATCH] Reading and writing the snap_grid_size.

---
 modules/Makefile.am            |    3 +-
 modules/maemo-tweaks-desktop.c |   90 +++++++++++++++++++++++++++++++++++++---
 2 files changed, 87 insertions(+), 6 deletions(-)

diff --git a/modules/Makefile.am b/modules/Makefile.am
index 9201d8c..5da1f12 100644
--- a/modules/Makefile.am
+++ b/modules/Makefile.am
@@ -4,7 +4,8 @@ libmaemo_tweaks_section = \
 AM_CPPFLAGS = \
 	-I$(top_srcdir)	\
 	$(GTK_CFLAGS)	\
-	$(HILDON_CFLAGS)
+	$(HILDON_CFLAGS)	\
+	-DTRANSITIONS=\"/usr/share/hildon-desktop/transitions.ini\"
 
 modulesdir = $(libdir)/maemo-tweaks/modules
 
diff --git a/modules/maemo-tweaks-desktop.c b/modules/maemo-tweaks-desktop.c
index c5b26ed..39754c5 100644
--- a/modules/maemo-tweaks-desktop.c
+++ b/modules/maemo-tweaks-desktop.c
@@ -27,6 +27,26 @@
         MAEMO_TWEAKS_TYPE_DESKTOP_SECTION))
 
 
+enum
+{
+    SNAP_NONE,
+    SNAP_SMALL,
+    SNAP_LARGE
+};
+
+enum
+{
+    SNAP_NONE_VALUE,
+    SNAP_SMALL_VALUE = 8,
+    SNAP_LARGE_VALUE = 16
+};
+
+static gint snap_values [] = {
+    SNAP_NONE_VALUE,
+    SNAP_SMALL_VALUE,
+    SNAP_LARGE_VALUE
+};
+
 typedef struct _MaemoTweaksDesktopSection MaemoTweaksDesktopSection;
 typedef struct _MaemoTweaksDesktopSectionClass
                MaemoTweaksDesktopSectionClass;
@@ -34,6 +54,9 @@ typedef struct _MaemoTweaksDesktopSectionClass
 struct _MaemoTweaksDesktopSection
 {
     MaemoTweaksSection parent_instance;
+
+    GKeyFile *ini;
+    GtkWidget *snap_button;
 };
 
 struct _MaemoTweaksDesktopSectionClass
@@ -47,6 +70,7 @@ static void maemo_tweaks_desktop_section_class_init
     (MaemoTweaksDesktopSectionClass *class);
 static void maemo_tweaks_desktop_section_init
     (MaemoTweaksDesktopSection *section);
+static void maemo_tweaks_desktop_section_dispose (GObject *obj);
 
 static void _save (MaemoTweaksSection *section);
 
@@ -97,6 +121,7 @@ static void
 maemo_tweaks_desktop_section_class_init
     (MaemoTweaksDesktopSectionClass *klass)
 {
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
     MaemoTweaksSectionClass *section_class =
         MAEMO_TWEAKS_SECTION_CLASS (klass);
 
@@ -105,11 +130,13 @@ maemo_tweaks_desktop_section_class_init
 
     section_class->name   = "_Desktop";
     section_class->save = _save;
+
+    object_class->dispose = maemo_tweaks_desktop_section_dispose;
 }
 
 GtkWidget * _build_snap_to_grid (void)
 {
-    const gchar *options[] = {"Default", "Small grid", "Large grid", NULL};
+    const gchar *options[] = {"None", "Small grid", "Large grid", NULL};
     gint i = 0;
     GtkWidget *button, *selector;
 
@@ -136,18 +163,71 @@ GtkWidget * _build_snap_to_grid (void)
 static void
 maemo_tweaks_desktop_section_init (MaemoTweaksDesktopSection *section)
 {
-    GtkWidget * snap_button;
     MaemoTweaksSection *iface;
 
-    snap_button = _build_snap_to_grid ();
-    iface = MAEMO_TWEAKS_SECTION (section);
+    gint snap_value = SNAP_NONE_VALUE;
+
+    section->snap_button = _build_snap_to_grid ();
+
+    section->ini = g_key_file_new ();
+
+    if (!g_key_file_load_from_file (section->ini, TRANSITIONS,
+                                    G_KEY_FILE_NONE, NULL))
+    {
+        g_warning ("%s: failed to load %s", G_STRFUNC, TRANSITIONS);
+        return;
+    }
+
+    snap_value = g_key_file_get_integer (section->ini, "edit_mode",
+                                         "snap_grid_size", NULL);
 
+    if (snap_value < SNAP_SMALL_VALUE)
+    {
+        hildon_picker_button_set_active
+            (HILDON_PICKER_BUTTON (section->snap_button), SNAP_NONE);
+    }
+    else if (snap_value < SNAP_LARGE_VALUE)
+    {
+        hildon_picker_button_set_active
+            (HILDON_PICKER_BUTTON (section->snap_button), SNAP_SMALL);
+    }
+    else
+    {
+        hildon_picker_button_set_active
+            (HILDON_PICKER_BUTTON (section->snap_button), SNAP_LARGE);
+    }
+
+
+    iface = MAEMO_TWEAKS_SECTION (section);
     iface->widget = gtk_vbox_new (FALSE, 0);
-    gtk_box_pack_start (GTK_BOX (iface->widget), snap_button,
+    gtk_box_pack_start (GTK_BOX (iface->widget), section->snap_button,
                         TRUE, TRUE, 0);
 }
 
+static void
+maemo_tweaks_desktop_section_dispose (GObject *obj)
+{
+    MaemoTweaksDesktopSection *section = MAEMO_TWEAKS_DESKTOP_SECTION (obj);
+    if (section->ini)
+    {
+        g_key_file_free (section->ini);
+        section->ini = NULL;
+    }
+
+    G_OBJECT_CLASS (maemo_tweaks_desktop_section_parent_class)->dispose
+        (obj);
+}
+
+
 static void _save (MaemoTweaksSection *section)
 {
+    gint active =
+        hildon_picker_button_get_active
+            (HILDON_PICKER_BUTTON
+             (MAEMO_TWEAKS_DESKTOP_SECTION (section)->snap_button));
+
+    g_key_file_set_integer (MAEMO_TWEAKS_DESKTOP_SECTION (section)->ini,
+                            "edit_mode", "snap_grid_size",
+                            snap_values [active]);
 }
 
-- 
1.7.9.5