Removed all the GUI stuff from the GTK+ date/time picker for now. Installed the date properties instead.

gtkdtp/dtp.c

@@ -10,18 +10,15 @@ https://git.gnome.org/browse/gtk+/tree/gtk/gtkcombobox.c?h=gtk-3-4
 #define GDTPC(x) ((goDateTimePickerClass *) x)
 
 struct goDateTimePickerPrivate {
-	GtkWidget *openbutton;
+	gint year;
-
+	gint month;
-	GtkWidget *popup;
+	gint day;
-	GtkWidget *calendar;
-	GtkWidget *spinHours;
-	GtkWidget *spinMinutes;
-	GtkWidget *spinSeconds;
 };
 
 G_DEFINE_TYPE_WITH_CODE(goDateTimePicker, goDateTimePicker, GTK_TYPE_BOX,
 	G_ADD_PRIVATE(goDateTimePicker))
 
+// TODO figure out how to share these between C and Go
 enum {
 	gtkMargin  = 12,
 	gtkXPadding = 12,
@@ -30,43 +27,7 @@ enum {
 
 static void goDateTimePicker_init(goDateTimePicker *dtp)
 {
-	goDateTimePickerPrivate *d;
-	GtkWidget *arrow;
-	GtkWidget *vbox;
-	GtkWidget *hbox;
-
 	dtp->priv = goDateTimePicker_get_instance_private(dtp);
-	d = dtp->priv;
-
-	// create the actual bar elements
-	// TODO the entry field
-	// just make a dummy one for testing
-	hbox = gtk_entry_new();
-	gtk_style_context_add_class(gtk_widget_get_style_context(hbox), GTK_STYLE_CLASS_COMBOBOX_ENTRY);
-	gtk_widget_set_hexpand(hbox, TRUE);
-	gtk_widget_set_halign(hbox, GTK_ALIGN_FILL);
-	gtk_container_add(GTK_CONTAINER(dtp), hbox);
-	// the open button
-	d->openbutton = gtk_toggle_button_new();
-	arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_NONE);
-	gtk_container_add(GTK_CONTAINER(d->openbutton), arrow);
-	// and make them look linked
-	// TODO sufficient?
-	gtk_style_context_add_class(gtk_widget_get_style_context(GTK_WIDGET(dtp)), "linked");
-	// and mark them as visible
-	gtk_widget_show_all(d->openbutton);
-	// and add them to the bar
-	gtk_container_add(GTK_CONTAINER(dtp), d->openbutton);
-
-	// now create the popup that will hold everything
-	d->popup = gtk_window_new(GTK_WINDOW_POPUP);
-	gtk_window_set_type_hint(GTK_WINDOW(d->popup), GDK_WINDOW_TYPE_HINT_COMBO);
-	gtk_window_set_resizable(GTK_WINDOW(d->popup), FALSE);
-	vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, gtkYPadding);
-	gtk_container_set_border_width(GTK_CONTAINER(vbox), gtkMargin);
-	d->calendar = gtk_calendar_new();
-	gtk_container_add(GTK_CONTAINER(vbox), d->calendar);
-	gtk_container_add(GTK_CONTAINER(d->popup), vbox);
 }
 
 static void goDateTimePicker_dispose(GObject *obj)
@@ -74,9 +35,6 @@ static void goDateTimePicker_dispose(GObject *obj)
 	goDateTimePickerPrivate *d = PRIV(obj);
 
 	// TODO really with g_clear_object()?
-	g_clear_object(&(d->openbutton));
-	g_clear_object(&(d->popup));
-	// TODO g_object_clear() the children?
 	G_OBJECT_CLASS(goDateTimePicker_parent_class)->dispose(obj);
 }
 
@@ -85,8 +43,96 @@ static void goDateTimePicker_finalize(GObject *obj)
 	G_OBJECT_CLASS(goDateTimePicker_parent_class)->finalize(obj);
 }
 
+enum {
+	pYear = 1,
+	pMonth,
+	pDay,
+	nParams,
+};
+
+static GParamSpec *gdtpParams[] = {
+	NULL,		// always null
+	NULL,		// year
+	NULL,		// month
+	NULL,		// day
+};
+
+static void goDateTimePicker_set_property(GObject *obj, guint prop, const GValue *value, GParamSpec *spec)
+{
+	goDateTimePickerPrivate *d = PRIV(obj);
+
+	switch (prop) {
+	case pYear:
+		d->year = g_value_get_int(value);
+		break;
+	case pMonth:
+		d->month = g_value_get_int(value);
+		break;
+	case pDay:
+		d->day = g_value_get_int(value);
+		// see note on GtkCalendar comaptibility below
+		if (d->day == 0)
+			;	// TODO
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, prop, spec);
+		return;
+	}
+	// TODO refresh everything here
+}
+
+static void goDateTimePicker_get_property(GObject *obj, guint prop, GValue *value, GParamSpec *spec)
+{
+	goDateTimePickerPrivate *d = PRIV(obj);
+
+	switch (prop) {
+	case pYear:
+		g_value_set_int(value, d->year);
+		break;
+	case pMonth:
+		g_value_set_int(value, d->month);
+		break;
+	case pDay:
+		g_value_set_int(value, d->day);
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID(obj, prop, spec);
+		return;
+	}
+}
+
 static void goDateTimePicker_class_init(goDateTimePickerClass *class)
 {
 	G_OBJECT_CLASS(class)->dispose = goDateTimePicker_dispose;
 	G_OBJECT_CLASS(class)->finalize = goDateTimePicker_finalize;
+	G_OBJECT_CLASS(class)->set_property = goDateTimePicker_set_property;
+	G_OBJECT_CLASS(class)->get_property = goDateTimePicker_get_property;
+
+	// types and values are to be compatible with the 3.4 GtkCalendar parameters
+	gdtpParams[pYear] = g_param_spec_int("year",
+		"current year",
+		"Current year",
+		0,
+		G_MAXINT >> 9,
+		0,
+		G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+	gdtpParams[pMonth] = g_param_spec_uint("month",
+		"current month",
+		"Current month",
+		0,
+		11,
+		0,
+		G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+	// because of the requirement to be compatible with GtkCalendar, we have to follow its rules about dates
+	// values are 1..31 with 0 meaning no date selected
+	// we will not allow no date to be selected, so we will set the default to 1 instead of 0
+	// TODO is this an issue for binding?
+	gdtpParams[pDay] = g_param_spec_uint("day",
+		"current day",
+		"Current day",
+		0,
+		31,
+		1,
+		G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+	g_object_class_install_properties(G_OBJECT_CLASS(class), nParams, gdtpParams);
 }