Gtk Properties（1）

学习记录一下关于Properties的知识和例子

#include <gtk/gtk.h>

static GtkWidget *createWindow(gint, gint, gchar *);

int main(int argc, char *argv[])
{
	gtk_init(&argc, &argv);

	GtkWidget *window;
	GtkWidget *button;
	GParamSpec *pspec;
	const gchar *const property = "relief";

	/// *** window
	window = createWindow(200, 200, "Properties");
	/// ***button
	button = gtk_button_new_with_label("Click");
	g_object_set(button, "margin", 20, NULL);

	pspec = g_object_class_find_property(G_OBJECT_GET_CLASS(button), property);

	if (G_IS_PARAM_SPEC(pspec))
	{
		if (pspec == NULL)
			g_print("There is no property \"%s\" avaible for this object\n", property);
		else
		{
			const GValue *value;

			const gchar *prop_name = g_param_spec_get_name(pspec);
			g_print("the prop name is %s\n", prop_name);
			g_object_set(button, prop_name, GTK_RELIEF_NONE, NULL);
			GType gtype_value = G_PARAM_SPEC_VALUE_TYPE(pspec);
			const gchar *property_name = g_type_name(gtype_value);
			g_print("property_name is %s\n", property_name);

			value = g_param_spec_get_default_value(pspec);
			// g_object_set_property(G_OBJECT(button), prop_name, value);
		}
	}

	gtk_container_add(GTK_CONTAINER(window), button);
	gtk_widget_show_all(window);
	gtk_main();
}

static GtkWidget *createWindow(gint width, gint height, gchar *title)
{
	GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_widget_set_size_request(window, width, height);
	gtk_window_set_title(GTK_WINDOW(window), title);
	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
	g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
	return window;
}