1 files changed, 140 insertions, 0 deletions
diff --git a/prev/gtkdtp/dtp.c b/prev/gtkdtp/dtp.c
new file mode 100644
index 0000000..70876bd
--- /dev/null
+++ b/prev/gtkdtp/dtp.c
@@ -0,0 +1,140 @@
+// 9 january 2015
+#include "dtp.h"
+
+/* notes:
+https://git.gnome.org/browse/gtk+/tree/gtk/gtkcombobox.c?h=gtk-3-4
+*/
+
+#define GDTP(x) ((goDateTimePicker *) x)
+#define PRIV(x) (GDTP(x)->priv)
+#define GDTPC(x) ((goDateTimePickerClass *) x)
+
+struct goDateTimePickerPrivate {
+	gint year;
+	gint month;
+	gint day;
+};
+
+G_DEFINE_TYPE_WITH_CODE(goDateTimePicker, goDateTimePicker, GTK_TYPE_BOX,
+	;)
+
+// TODO figure out how to share these between C and Go
+enum {
+	gtkMargin  = 12,
+	gtkXPadding = 12,
+	gtkYPadding = 6,
+};
+
+static void goDateTimePicker_init(goDateTimePicker *dtp)
+{
+	dtp->priv = G_TYPE_INSTANCE_GET_PRIVATE(dtp, goDateTimePicker_get_type(), goDateTimePickerPrivate);
+}
+
+static void goDateTimePicker_dispose(GObject *obj)
+{
+	goDateTimePickerPrivate *d = PRIV(obj);
+
+	// TODO really with g_clear_object()?
+	G_OBJECT_CLASS(goDateTimePicker_parent_class)->dispose(obj);
+}
+
+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_type_class_add_private(class, sizeof (goDateTimePickerPrivate));
+
+	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);
+}