--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/X_main.c	Fri Jul 25 10:09:53 2008 +0800
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <X11/Xlib.h>
+#include <cairo.h>
+
+void drawing(cairo_surface_t *surface, int w, int h) {
+    cairo_t *cr;
+
+    cr = cairo_create(surface);
+    cairo_set_source_rgb(cr, 0xff, 0xff, 0x80);
+    cairo_move_to(cr, 10, h / 2);
+    cairo_set_font_size(cr, 48.0);
+    cairo_text_path(cr, "hello \xe4\xb8\xad\xe6\x96\x87");
+    cairo_set_line_width(cr, 1);
+    cairo_stroke(cr);
+}
+
+int
+main(int argc, char * const argv[]) {
+    Display *display;
+    Window root;
+    Visual *visual;
+    int screen;
+    XSetWindowAttributes wattr;
+    Window win;
+    int depth;
+    cairo_surface_t *surface;
+    int w, h;
+    int x, y;
+    int r;
+
+    display = XOpenDisplay(":0.0");
+    if(display == NULL)
+	printf("XOpenDisplay\n");
+    screen = DefaultScreen(display);
+    root = DefaultRootWindow(display);
+    visual = DefaultVisual(display, screen);
+    depth = DefaultDepth(display, screen);
+    wattr.override_redirect = False;
+    x = 10;
+    y = 10;
+    w = 200;
+    h = 200;
+    win = XCreateWindow(display, root,
+			x, y,
+			w, h,
+			1, depth, InputOutput, visual,
+			CWOverrideRedirect, &wattr);
+    r = XMapWindow(display, win);
+
+    surface = cairo_xlib_surface_create(display, win, visual, w, h);
+    if(surface == NULL)
+	printf("cairo_xlib_surface_create\n");
+
+    drawing(surface, w, h);
+
+    XFlush(display);
+    sleep(10);
+
+    XCloseDisplay(display);
+}

--- a/src/coord.c	Wed Jul 23 16:07:37 2008 +0800
+++ b/src/coord.c	Fri Jul 25 10:09:53 2008 +0800
@@ -22,6 +22,7 @@
     struct coord *children, *sibling;
 } coord_t;
 
+/* To keep possibility of changing type of aix */
 #define MUL(a, b) ((a) * (b))
 #define ADD(a, b) ((a) + (b))
 #define DIV(a, b) ((a) / (b))