如何让GTK Cairo在不触发事件的情况下多次绘图

#include <gtk/gtk.h>

gboolean draw_callback(GtkWidget *widget, cairo_t *cr, gpointer data) {
    // 绘图操作，例如绘制线条、填充颜色等
    cairo_set_source_rgb(cr, 0, 0, 0);
    cairo_move_to(cr, 10, 10);
    cairo_line_to(cr, 100, 100);
    cairo_stroke(cr);
    
    return FALSE;
}

void button_clicked(GtkWidget *widget, gpointer data) {
    // 手动调用绘图函数
    gtk_widget_queue_draw(GTK_WIDGET(data));
}

int main(int argc, char *argv[]) {
    gtk_init(&argc, &argv);
    
    GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
    
    GtkWidget *drawing_area = gtk_drawing_area_new();
    gtk_container_add(GTK_CONTAINER(window), drawing_area);
    
    g_signal_connect(drawing_area, "draw", G_CALLBACK(draw_callback), NULL);
    
    GtkWidget *button = gtk_button_new_with_label("绘图");
    g_signal_connect(button, "clicked", G_CALLBACK(button_clicked), drawing_area);
    gtk_container_add(GTK_CONTAINER(window), button);
    
    gtk_widget_show_all(window);
    
    gtk_main();
    
    return 0;
}