--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/dynamic/main.c	Sun Dec 07 18:00:06 2008 +0800
@@ -0,0 +1,201 @@
+/*! \file
+ *
+ * svg2code_ex is an example that show programmers how to create a
+ * menu with MadButterfly.
+ *
+ */
+#include <stdio.h>
+#include <mb.h>
+#include "menu.h"
+#include "button.h"
+
+
+typedef struct _engine engine_t;
+struct _engine {
+    X_MB_runtime_t *rt;
+    redraw_man_t *rdman;
+    menu_t *menu;
+    button_t *button;
+    int state;
+    co_aix orx,ory;
+    int start_x,start_y;
+    observer_t *obs1,*obs2;
+    shape_t *rect;
+    co_aix rx,ry;
+};
+engine_t *engine_init()
+{
+
+    X_MB_runtime_t *rt;
+    rt = X_MB_new(":0.0", 800, 600);
+    engine_t *en = (engine_t *) malloc(sizeof(engine_t));
+
+    en->rt = rt;
+    en->rdman =  X_MB_rdman(rt);
+    return en;
+}
+
+void engine_close(engine_t *en)
+{
+    /*
+     * Start handle connections, includes one to X server.
+     * User start to interact with the application.
+     */
+    X_MB_handle_connection(en->rt);
+
+    /*
+     * Clean
+     */
+    menu_free(en->menu);
+    X_MB_free(en->rt);
+    free(en);
+}
+#define COORD_SHOW(group) coord_show(group);rdman_coord_changed(en->rdman, group)
+#define COORD_HIDE(group) coord_hide(group);rdman_coord_changed(en->rdman, group)
+
+#define CMOUSE(e) (coord_get_mouse_event(e))
+
+
+
+static void button_move(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+
+    
+    printf("Mouse move\n");
+    COORD_SHOW(en->button->active);
+    rdman_coord_changed(en->rdman,en->button->root_coord);
+    rdman_redraw_changed(en->rdman);
+}
+static void button_out(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+
+    printf("mouse out\n");
+    COORD_HIDE(en->button->active);
+    rdman_coord_changed(en->rdman,en->button->root_coord);
+    rdman_redraw_changed(en->rdman);
+}
+
+void button_pressed(event_t *evt, void *arg)
+{
+	printf("Pressed\n");
+}
+
+void engine_add_button(engine_t *en, coord_t *normal, coord_t *active, void (*func)())
+{
+    active->matrix[2] = 200;
+    active->matrix[5] = 200;
+    normal->matrix[2] = 200;
+    normal->matrix[5] = 200;
+    COORD_HIDE(en->button->active);
+    rdman_coord_changed(en->rdman,en->button->root_coord);
+    rdman_redraw_changed(en->rdman);
+    subject_add_event_observer(CMOUSE(normal), EVT_MOUSE_MOVE, button_move,en);
+    subject_add_event_observer(CMOUSE(active), EVT_MOUSE_OUT, button_out,en);
+    subject_add_event_observer(CMOUSE(active), EVT_MOUSE_BUT_RELEASE, button_pressed,en);
+}
+
+
+void coord_move(coord_t *c, co_aix x, co_aix y)
+{
+    c->matrix[2] = x;
+    c->matrix[5] = y;
+}
+
+
+
+static void add_rect_move(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+    mouse_event_t *mev = (mouse_event_t *) evt;
+
+    printf("resize rectangle\n");
+    sh_rect_set(en->rect, en->start_x, en->start_y, mev->x - en->start_x, mev->y-en->start_y,en->rx,en->ry);
+    rdman_shape_changed(en->rdman,en->rect);
+    rdman_redraw_changed(en->rdman);
+}
+
+static void add_rect_release(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+    mouse_event_t *mev = (mouse_event_t *) evt;
+
+    printf("rectangle done\n");
+    subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs1);
+    subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs2);
+}
+
+static void add_rect_2(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+    mouse_event_t *mev = (mouse_event_t *) evt;
+    paint_t *color;
+
+    printf("select first point\n");
+    // Add an rect path 
+
+    en->start_x = mev->x;
+    en->start_y = mev->y;
+    subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs1);
+    subject_remove_observer(CMOUSE(en->rdman->root_coord), en->obs2);
+    en->obs1 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_MOVE, add_rect_move, en);
+    en->obs2 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_BUT_RELEASE, add_rect_release, en);
+}
+
+static void add_rect_2_move(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+    mouse_event_t *mev = (mouse_event_t *) evt;
+
+    sh_rect_set(en->rect, mev->x, mev->y, 50,50,en->rx,en->ry);
+    rdman_shape_changed(en->rdman,en->rect);
+    rdman_redraw_changed(en->rdman);
+}
+
+static void add_rect(event_t *evt, void *arg) 
+{
+    engine_t *en = (engine_t *) arg;
+    mouse_event_t *mev = (mouse_event_t *) evt;
+    paint_t *color;
+
+    printf("menut selected\n");
+    en->obs1 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_BUT_PRESS, add_rect_2, en);
+    en->obs2 = subject_add_event_observer(CMOUSE(en->rdman->root_coord), EVT_MOUSE_MOVE, add_rect_2_move, en);
+    en->rect = rdman_shape_rect_new(en->rdman, mev->x, mev->y, 50 , 50, en->rx, en->ry);
+    // Paint it with color
+    color = rdman_paint_color_new(en->rdman, 0.800000, 0.800000, 0.400000, 1.000000);
+    rdman_paint_fill(en->rdman, color, en->rect);
+    // Add to the stage
+    rdman_add_shape(en->rdman, en->rect, en->menu->root_coord);
+}
+
+
+
+
+
+int main(int argc, char * const argv[]) {
+    subject_t *subject;
+    engine_t *en;
+
+    en = engine_init();
+    en->menu = menu_new(en->rdman, en->rdman->root_coord);
+    en->button = button_new(en->rdman, en->rdman->root_coord);
+    engine_add_button(en, en->button->normal, en->button->active, button_pressed);
+
+    en->rx = 0;
+    en->ry = 0;
+
+    /*
+     * Register observers to subjects of events for objects.
+     */
+    subject = coord_get_mouse_event(en->menu->rect);
+    subject_add_event_observer(subject,  EVT_MOUSE_BUT_RELEASE, add_rect, en);
+
+
+    engine_close(en);
+
+    return 0;
+}
+
+/* vim: set ts=4 */